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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /arch/alpha/include/asm
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/alpha/include/asm')
-rw-r--r--arch/alpha/include/asm/Kbuild7
-rw-r--r--arch/alpha/include/asm/agp_backend.h43
-rw-r--r--arch/alpha/include/asm/asm-prototypes.h19
-rw-r--r--arch/alpha/include/asm/atomic.h271
-rw-r--r--arch/alpha/include/asm/barrier.h23
-rw-r--r--arch/alpha/include/asm/bitops.h458
-rw-r--r--arch/alpha/include/asm/bug.h25
-rw-r--r--arch/alpha/include/asm/cache.h23
-rw-r--r--arch/alpha/include/asm/cacheflush.h69
-rw-r--r--arch/alpha/include/asm/checksum.h74
-rw-r--r--arch/alpha/include/asm/cmpxchg.h76
-rw-r--r--arch/alpha/include/asm/compiler.h7
-rw-r--r--arch/alpha/include/asm/console.h30
-rw-r--r--arch/alpha/include/asm/core_apecs.h534
-rw-r--r--arch/alpha/include/asm/core_cia.h517
-rw-r--r--arch/alpha/include/asm/core_irongate.h233
-rw-r--r--arch/alpha/include/asm/core_lca.h378
-rw-r--r--arch/alpha/include/asm/core_marvel.h378
-rw-r--r--arch/alpha/include/asm/core_mcpcia.h404
-rw-r--r--arch/alpha/include/asm/core_polaris.h111
-rw-r--r--arch/alpha/include/asm/core_t2.h629
-rw-r--r--arch/alpha/include/asm/core_titan.h410
-rw-r--r--arch/alpha/include/asm/core_tsunami.h335
-rw-r--r--arch/alpha/include/asm/core_wildfire.h319
-rw-r--r--arch/alpha/include/asm/delay.h11
-rw-r--r--arch/alpha/include/asm/device.h6
-rw-r--r--arch/alpha/include/asm/dma-mapping.h16
-rw-r--r--arch/alpha/include/asm/dma.h368
-rw-r--r--arch/alpha/include/asm/elf.h160
-rw-r--r--arch/alpha/include/asm/emergency-restart.h6
-rw-r--r--arch/alpha/include/asm/err_common.h119
-rw-r--r--arch/alpha/include/asm/err_ev6.h6
-rw-r--r--arch/alpha/include/asm/err_ev7.h203
-rw-r--r--arch/alpha/include/asm/extable.h56
-rw-r--r--arch/alpha/include/asm/floppy.h114
-rw-r--r--arch/alpha/include/asm/fpu.h89
-rw-r--r--arch/alpha/include/asm/ftrace.h1
-rw-r--r--arch/alpha/include/asm/futex.h95
-rw-r--r--arch/alpha/include/asm/gct.h59
-rw-r--r--arch/alpha/include/asm/hardirq.h10
-rw-r--r--arch/alpha/include/asm/hw_irq.h15
-rw-r--r--arch/alpha/include/asm/hwrpb.h221
-rw-r--r--arch/alpha/include/asm/io.h680
-rw-r--r--arch/alpha/include/asm/io_trivial.h144
-rw-r--r--arch/alpha/include/asm/irq.h92
-rw-r--r--arch/alpha/include/asm/irqflags.h68
-rw-r--r--arch/alpha/include/asm/jensen.h363
-rw-r--r--arch/alpha/include/asm/linkage.h9
-rw-r--r--arch/alpha/include/asm/local.h110
-rw-r--r--arch/alpha/include/asm/machvec.h139
-rw-r--r--arch/alpha/include/asm/mc146818rtc.h28
-rw-r--r--arch/alpha/include/asm/mce.h84
-rw-r--r--arch/alpha/include/asm/mmu.h8
-rw-r--r--arch/alpha/include/asm/mmu_context.h259
-rw-r--r--arch/alpha/include/asm/module.h18
-rw-r--r--arch/alpha/include/asm/page.h92
-rw-r--r--arch/alpha/include/asm/pal.h187
-rw-r--r--arch/alpha/include/asm/param.h12
-rw-r--r--arch/alpha/include/asm/parport.h19
-rw-r--r--arch/alpha/include/asm/pci.h91
-rw-r--r--arch/alpha/include/asm/percpu.h19
-rw-r--r--arch/alpha/include/asm/perf_event.h4
-rw-r--r--arch/alpha/include/asm/pgalloc.h36
-rw-r--r--arch/alpha/include/asm/pgtable.h366
-rw-r--r--arch/alpha/include/asm/processor.h61
-rw-r--r--arch/alpha/include/asm/ptrace.h27
-rw-r--r--arch/alpha/include/asm/rwonce.h35
-rw-r--r--arch/alpha/include/asm/serial.h30
-rw-r--r--arch/alpha/include/asm/setup.h43
-rw-r--r--arch/alpha/include/asm/sfp-machine.h82
-rw-r--r--arch/alpha/include/asm/shmparam.h7
-rw-r--r--arch/alpha/include/asm/signal.h28
-rw-r--r--arch/alpha/include/asm/smp.h60
-rw-r--r--arch/alpha/include/asm/socket.h11
-rw-r--r--arch/alpha/include/asm/sparsemem.h18
-rw-r--r--arch/alpha/include/asm/special_insns.h42
-rw-r--r--arch/alpha/include/asm/spinlock.h163
-rw-r--r--arch/alpha/include/asm/spinlock_types.h21
-rw-r--r--arch/alpha/include/asm/string.h80
-rw-r--r--arch/alpha/include/asm/switch_to.h15
-rw-r--r--arch/alpha/include/asm/syscall.h18
-rw-r--r--arch/alpha/include/asm/thread_info.h126
-rw-r--r--arch/alpha/include/asm/timex.h33
-rw-r--r--arch/alpha/include/asm/tlb.h10
-rw-r--r--arch/alpha/include/asm/tlbflush.h152
-rw-r--r--arch/alpha/include/asm/topology.h12
-rw-r--r--arch/alpha/include/asm/types.h7
-rw-r--r--arch/alpha/include/asm/uaccess.h292
-rw-r--r--arch/alpha/include/asm/ucontext.h14
-rw-r--r--arch/alpha/include/asm/unistd.h22
-rw-r--r--arch/alpha/include/asm/user.h48
-rw-r--r--arch/alpha/include/asm/vga.h83
-rw-r--r--arch/alpha/include/asm/vmalloc.h4
-rw-r--r--arch/alpha/include/asm/word-at-a-time.h58
-rw-r--r--arch/alpha/include/asm/wrperfmon.h94
-rw-r--r--arch/alpha/include/asm/xchg.h246
-rw-r--r--arch/alpha/include/asm/xor.h866
97 files changed, 12564 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
new file mode 100644
index 0000000000..396caece6d
--- /dev/null
+++ b/arch/alpha/include/asm/Kbuild
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+
+generated-y += syscall_table.h
+generic-y += agp.h
+generic-y += asm-offsets.h
+generic-y += kvm_para.h
+generic-y += mcs_spinlock.h
diff --git a/arch/alpha/include/asm/agp_backend.h b/arch/alpha/include/asm/agp_backend.h
new file mode 100644
index 0000000000..2718802407
--- /dev/null
+++ b/arch/alpha/include/asm/agp_backend.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_AGP_BACKEND_H
+#define _ALPHA_AGP_BACKEND_H 1
+
+typedef union _alpha_agp_mode {
+ struct {
+ u32 rate : 3;
+ u32 reserved0 : 1;
+ u32 fw : 1;
+ u32 fourgb : 1;
+ u32 reserved1 : 2;
+ u32 enable : 1;
+ u32 sba : 1;
+ u32 reserved2 : 14;
+ u32 rq : 8;
+ } bits;
+ u32 lw;
+} alpha_agp_mode;
+
+typedef struct _alpha_agp_info {
+ struct pci_controller *hose;
+ struct {
+ dma_addr_t bus_base;
+ unsigned long size;
+ void *sysdata;
+ } aperture;
+ alpha_agp_mode capability;
+ alpha_agp_mode mode;
+ void *private;
+ struct alpha_agp_ops *ops;
+} alpha_agp_info;
+
+struct alpha_agp_ops {
+ int (*setup)(alpha_agp_info *);
+ void (*cleanup)(alpha_agp_info *);
+ int (*configure)(alpha_agp_info *);
+ int (*bind)(alpha_agp_info *, off_t, struct agp_memory *);
+ int (*unbind)(alpha_agp_info *, off_t, struct agp_memory *);
+ unsigned long (*translate)(alpha_agp_info *, dma_addr_t);
+};
+
+
+#endif /* _ALPHA_AGP_BACKEND_H */
diff --git a/arch/alpha/include/asm/asm-prototypes.h b/arch/alpha/include/asm/asm-prototypes.h
new file mode 100644
index 0000000000..c8ae46fc2e
--- /dev/null
+++ b/arch/alpha/include/asm/asm-prototypes.h
@@ -0,0 +1,19 @@
+#include <linux/spinlock.h>
+
+#include <asm/checksum.h>
+#include <asm/console.h>
+#include <asm/page.h>
+#include <asm/string.h>
+#include <linux/uaccess.h>
+
+#include <asm-generic/asm-prototypes.h>
+
+extern void __divl(void);
+extern void __reml(void);
+extern void __divq(void);
+extern void __remq(void);
+extern void __divlu(void);
+extern void __remlu(void);
+extern void __divqu(void);
+extern void __remqu(void);
+extern unsigned long __udiv_qrnnd(unsigned long *, unsigned long, unsigned long , unsigned long);
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
new file mode 100644
index 0000000000..cbd9244571
--- /dev/null
+++ b/arch/alpha/include/asm/atomic.h
@@ -0,0 +1,271 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_ATOMIC_H
+#define _ALPHA_ATOMIC_H
+
+#include <linux/types.h>
+#include <asm/barrier.h>
+#include <asm/cmpxchg.h>
+
+/*
+ * Atomic operations that C can't guarantee us. Useful for
+ * resource counting etc...
+ *
+ * But use these as seldom as possible since they are much slower
+ * than regular operations.
+ */
+
+/*
+ * To ensure dependency ordering is preserved for the _relaxed and
+ * _release atomics, an smp_mb() is unconditionally inserted into the
+ * _relaxed variants, which are used to build the barriered versions.
+ * Avoid redundant back-to-back fences in the _acquire and _fence
+ * versions.
+ */
+#define __atomic_acquire_fence()
+#define __atomic_post_full_fence()
+
+#define ATOMIC64_INIT(i) { (i) }
+
+#define arch_atomic_read(v) READ_ONCE((v)->counter)
+#define arch_atomic64_read(v) READ_ONCE((v)->counter)
+
+#define arch_atomic_set(v,i) WRITE_ONCE((v)->counter, (i))
+#define arch_atomic64_set(v,i) WRITE_ONCE((v)->counter, (i))
+
+/*
+ * To get proper branch prediction for the main line, we must branch
+ * forward to code at the end of this object's .text section, then
+ * branch back to restart the operation.
+ */
+
+#define ATOMIC_OP(op, asm_op) \
+static __inline__ void arch_atomic_##op(int i, atomic_t * v) \
+{ \
+ unsigned long temp; \
+ __asm__ __volatile__( \
+ "1: ldl_l %0,%1\n" \
+ " " #asm_op " %0,%2,%0\n" \
+ " stl_c %0,%1\n" \
+ " beq %0,2f\n" \
+ ".subsection 2\n" \
+ "2: br 1b\n" \
+ ".previous" \
+ :"=&r" (temp), "=m" (v->counter) \
+ :"Ir" (i), "m" (v->counter)); \
+} \
+
+#define ATOMIC_OP_RETURN(op, asm_op) \
+static inline int arch_atomic_##op##_return_relaxed(int i, atomic_t *v) \
+{ \
+ long temp, result; \
+ __asm__ __volatile__( \
+ "1: ldl_l %0,%1\n" \
+ " " #asm_op " %0,%3,%2\n" \
+ " " #asm_op " %0,%3,%0\n" \
+ " stl_c %0,%1\n" \
+ " beq %0,2f\n" \
+ ".subsection 2\n" \
+ "2: br 1b\n" \
+ ".previous" \
+ :"=&r" (temp), "=m" (v->counter), "=&r" (result) \
+ :"Ir" (i), "m" (v->counter) : "memory"); \
+ smp_mb(); \
+ return result; \
+}
+
+#define ATOMIC_FETCH_OP(op, asm_op) \
+static inline int arch_atomic_fetch_##op##_relaxed(int i, atomic_t *v) \
+{ \
+ long temp, result; \
+ __asm__ __volatile__( \
+ "1: ldl_l %2,%1\n" \
+ " " #asm_op " %2,%3,%0\n" \
+ " stl_c %0,%1\n" \
+ " beq %0,2f\n" \
+ ".subsection 2\n" \
+ "2: br 1b\n" \
+ ".previous" \
+ :"=&r" (temp), "=m" (v->counter), "=&r" (result) \
+ :"Ir" (i), "m" (v->counter) : "memory"); \
+ smp_mb(); \
+ return result; \
+}
+
+#define ATOMIC64_OP(op, asm_op) \
+static __inline__ void arch_atomic64_##op(s64 i, atomic64_t * v) \
+{ \
+ s64 temp; \
+ __asm__ __volatile__( \
+ "1: ldq_l %0,%1\n" \
+ " " #asm_op " %0,%2,%0\n" \
+ " stq_c %0,%1\n" \
+ " beq %0,2f\n" \
+ ".subsection 2\n" \
+ "2: br 1b\n" \
+ ".previous" \
+ :"=&r" (temp), "=m" (v->counter) \
+ :"Ir" (i), "m" (v->counter)); \
+} \
+
+#define ATOMIC64_OP_RETURN(op, asm_op) \
+static __inline__ s64 \
+arch_atomic64_##op##_return_relaxed(s64 i, atomic64_t * v) \
+{ \
+ s64 temp, result; \
+ __asm__ __volatile__( \
+ "1: ldq_l %0,%1\n" \
+ " " #asm_op " %0,%3,%2\n" \
+ " " #asm_op " %0,%3,%0\n" \
+ " stq_c %0,%1\n" \
+ " beq %0,2f\n" \
+ ".subsection 2\n" \
+ "2: br 1b\n" \
+ ".previous" \
+ :"=&r" (temp), "=m" (v->counter), "=&r" (result) \
+ :"Ir" (i), "m" (v->counter) : "memory"); \
+ smp_mb(); \
+ return result; \
+}
+
+#define ATOMIC64_FETCH_OP(op, asm_op) \
+static __inline__ s64 \
+arch_atomic64_fetch_##op##_relaxed(s64 i, atomic64_t * v) \
+{ \
+ s64 temp, result; \
+ __asm__ __volatile__( \
+ "1: ldq_l %2,%1\n" \
+ " " #asm_op " %2,%3,%0\n" \
+ " stq_c %0,%1\n" \
+ " beq %0,2f\n" \
+ ".subsection 2\n" \
+ "2: br 1b\n" \
+ ".previous" \
+ :"=&r" (temp), "=m" (v->counter), "=&r" (result) \
+ :"Ir" (i), "m" (v->counter) : "memory"); \
+ smp_mb(); \
+ return result; \
+}
+
+#define ATOMIC_OPS(op) \
+ ATOMIC_OP(op, op##l) \
+ ATOMIC_OP_RETURN(op, op##l) \
+ ATOMIC_FETCH_OP(op, op##l) \
+ ATOMIC64_OP(op, op##q) \
+ ATOMIC64_OP_RETURN(op, op##q) \
+ ATOMIC64_FETCH_OP(op, op##q)
+
+ATOMIC_OPS(add)
+ATOMIC_OPS(sub)
+
+#define arch_atomic_add_return_relaxed arch_atomic_add_return_relaxed
+#define arch_atomic_sub_return_relaxed arch_atomic_sub_return_relaxed
+#define arch_atomic_fetch_add_relaxed arch_atomic_fetch_add_relaxed
+#define arch_atomic_fetch_sub_relaxed arch_atomic_fetch_sub_relaxed
+
+#define arch_atomic64_add_return_relaxed arch_atomic64_add_return_relaxed
+#define arch_atomic64_sub_return_relaxed arch_atomic64_sub_return_relaxed
+#define arch_atomic64_fetch_add_relaxed arch_atomic64_fetch_add_relaxed
+#define arch_atomic64_fetch_sub_relaxed arch_atomic64_fetch_sub_relaxed
+
+#define arch_atomic_andnot arch_atomic_andnot
+#define arch_atomic64_andnot arch_atomic64_andnot
+
+#undef ATOMIC_OPS
+#define ATOMIC_OPS(op, asm) \
+ ATOMIC_OP(op, asm) \
+ ATOMIC_FETCH_OP(op, asm) \
+ ATOMIC64_OP(op, asm) \
+ ATOMIC64_FETCH_OP(op, asm)
+
+ATOMIC_OPS(and, and)
+ATOMIC_OPS(andnot, bic)
+ATOMIC_OPS(or, bis)
+ATOMIC_OPS(xor, xor)
+
+#define arch_atomic_fetch_and_relaxed arch_atomic_fetch_and_relaxed
+#define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot_relaxed
+#define arch_atomic_fetch_or_relaxed arch_atomic_fetch_or_relaxed
+#define arch_atomic_fetch_xor_relaxed arch_atomic_fetch_xor_relaxed
+
+#define arch_atomic64_fetch_and_relaxed arch_atomic64_fetch_and_relaxed
+#define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot_relaxed
+#define arch_atomic64_fetch_or_relaxed arch_atomic64_fetch_or_relaxed
+#define arch_atomic64_fetch_xor_relaxed arch_atomic64_fetch_xor_relaxed
+
+#undef ATOMIC_OPS
+#undef ATOMIC64_FETCH_OP
+#undef ATOMIC64_OP_RETURN
+#undef ATOMIC64_OP
+#undef ATOMIC_FETCH_OP
+#undef ATOMIC_OP_RETURN
+#undef ATOMIC_OP
+
+static __inline__ int arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)
+{
+ int c, new, old;
+ smp_mb();
+ __asm__ __volatile__(
+ "1: ldl_l %[old],%[mem]\n"
+ " cmpeq %[old],%[u],%[c]\n"
+ " addl %[old],%[a],%[new]\n"
+ " bne %[c],2f\n"
+ " stl_c %[new],%[mem]\n"
+ " beq %[new],3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : [old] "=&r"(old), [new] "=&r"(new), [c] "=&r"(c)
+ : [mem] "m"(*v), [a] "rI"(a), [u] "rI"((long)u)
+ : "memory");
+ smp_mb();
+ return old;
+}
+#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless
+
+static __inline__ s64 arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
+{
+ s64 c, new, old;
+ smp_mb();
+ __asm__ __volatile__(
+ "1: ldq_l %[old],%[mem]\n"
+ " cmpeq %[old],%[u],%[c]\n"
+ " addq %[old],%[a],%[new]\n"
+ " bne %[c],2f\n"
+ " stq_c %[new],%[mem]\n"
+ " beq %[new],3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : [old] "=&r"(old), [new] "=&r"(new), [c] "=&r"(c)
+ : [mem] "m"(*v), [a] "rI"(a), [u] "rI"(u)
+ : "memory");
+ smp_mb();
+ return old;
+}
+#define arch_atomic64_fetch_add_unless arch_atomic64_fetch_add_unless
+
+static inline s64 arch_atomic64_dec_if_positive(atomic64_t *v)
+{
+ s64 old, tmp;
+ smp_mb();
+ __asm__ __volatile__(
+ "1: ldq_l %[old],%[mem]\n"
+ " subq %[old],1,%[tmp]\n"
+ " ble %[old],2f\n"
+ " stq_c %[tmp],%[mem]\n"
+ " beq %[tmp],3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : [old] "=&r"(old), [tmp] "=&r"(tmp)
+ : [mem] "m"(*v)
+ : "memory");
+ smp_mb();
+ return old - 1;
+}
+#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
+
+#endif /* _ALPHA_ATOMIC_H */
diff --git a/arch/alpha/include/asm/barrier.h b/arch/alpha/include/asm/barrier.h
new file mode 100644
index 0000000000..c56bfffc99
--- /dev/null
+++ b/arch/alpha/include/asm/barrier.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BARRIER_H
+#define __BARRIER_H
+
+#define mb() __asm__ __volatile__("mb": : :"memory")
+#define rmb() __asm__ __volatile__("mb": : :"memory")
+#define wmb() __asm__ __volatile__("wmb": : :"memory")
+
+#define __smp_load_acquire(p) \
+({ \
+ compiletime_assert_atomic_type(*p); \
+ __READ_ONCE(*p); \
+})
+
+#ifdef CONFIG_SMP
+#define __ASM_SMP_MB "\tmb\n"
+#else
+#define __ASM_SMP_MB
+#endif
+
+#include <asm-generic/barrier.h>
+
+#endif /* __BARRIER_H */
diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h
new file mode 100644
index 0000000000..bafb1c1f0f
--- /dev/null
+++ b/arch/alpha/include/asm/bitops.h
@@ -0,0 +1,458 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_BITOPS_H
+#define _ALPHA_BITOPS_H
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
+#include <asm/compiler.h>
+#include <asm/barrier.h>
+
+/*
+ * Copyright 1994, Linus Torvalds.
+ */
+
+/*
+ * These have to be done with inline assembly: that way the bit-setting
+ * is guaranteed to be atomic. All bit operations return 0 if the bit
+ * was cleared before the operation and != 0 if it was not.
+ *
+ * To get proper branch prediction for the main line, we must branch
+ * forward to code at the end of this object's .text section, then
+ * branch back to restart the operation.
+ *
+ * bit 0 is the LSB of addr; bit 64 is the LSB of (addr+1).
+ */
+
+static inline void
+set_bit(unsigned long nr, volatile void * addr)
+{
+ unsigned long temp;
+ int *m = ((int *) addr) + (nr >> 5);
+
+ __asm__ __volatile__(
+ "1: ldl_l %0,%3\n"
+ " bis %0,%2,%0\n"
+ " stl_c %0,%1\n"
+ " beq %0,2f\n"
+ ".subsection 2\n"
+ "2: br 1b\n"
+ ".previous"
+ :"=&r" (temp), "=m" (*m)
+ :"Ir" (1UL << (nr & 31)), "m" (*m));
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline void
+arch___set_bit(unsigned long nr, volatile unsigned long *addr)
+{
+ int *m = ((int *) addr) + (nr >> 5);
+
+ *m |= 1 << (nr & 31);
+}
+
+static inline void
+clear_bit(unsigned long nr, volatile void * addr)
+{
+ unsigned long temp;
+ int *m = ((int *) addr) + (nr >> 5);
+
+ __asm__ __volatile__(
+ "1: ldl_l %0,%3\n"
+ " bic %0,%2,%0\n"
+ " stl_c %0,%1\n"
+ " beq %0,2f\n"
+ ".subsection 2\n"
+ "2: br 1b\n"
+ ".previous"
+ :"=&r" (temp), "=m" (*m)
+ :"Ir" (1UL << (nr & 31)), "m" (*m));
+}
+
+static inline void
+clear_bit_unlock(unsigned long nr, volatile void * addr)
+{
+ smp_mb();
+ clear_bit(nr, addr);
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline void
+arch___clear_bit(unsigned long nr, volatile unsigned long *addr)
+{
+ int *m = ((int *) addr) + (nr >> 5);
+
+ *m &= ~(1 << (nr & 31));
+}
+
+static inline void
+__clear_bit_unlock(unsigned long nr, volatile void * addr)
+{
+ smp_mb();
+ arch___clear_bit(nr, addr);
+}
+
+static inline void
+change_bit(unsigned long nr, volatile void * addr)
+{
+ unsigned long temp;
+ int *m = ((int *) addr) + (nr >> 5);
+
+ __asm__ __volatile__(
+ "1: ldl_l %0,%3\n"
+ " xor %0,%2,%0\n"
+ " stl_c %0,%1\n"
+ " beq %0,2f\n"
+ ".subsection 2\n"
+ "2: br 1b\n"
+ ".previous"
+ :"=&r" (temp), "=m" (*m)
+ :"Ir" (1UL << (nr & 31)), "m" (*m));
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline void
+arch___change_bit(unsigned long nr, volatile unsigned long *addr)
+{
+ int *m = ((int *) addr) + (nr >> 5);
+
+ *m ^= 1 << (nr & 31);
+}
+
+static inline int
+test_and_set_bit(unsigned long nr, volatile void *addr)
+{
+ unsigned long oldbit;
+ unsigned long temp;
+ int *m = ((int *) addr) + (nr >> 5);
+
+ __asm__ __volatile__(
+#ifdef CONFIG_SMP
+ " mb\n"
+#endif
+ "1: ldl_l %0,%4\n"
+ " and %0,%3,%2\n"
+ " bne %2,2f\n"
+ " xor %0,%3,%0\n"
+ " stl_c %0,%1\n"
+ " beq %0,3f\n"
+ "2:\n"
+#ifdef CONFIG_SMP
+ " mb\n"
+#endif
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ :"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+ :"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+ return oldbit != 0;
+}
+
+static inline int
+test_and_set_bit_lock(unsigned long nr, volatile void *addr)
+{
+ unsigned long oldbit;
+ unsigned long temp;
+ int *m = ((int *) addr) + (nr >> 5);
+
+ __asm__ __volatile__(
+ "1: ldl_l %0,%4\n"
+ " and %0,%3,%2\n"
+ " bne %2,2f\n"
+ " xor %0,%3,%0\n"
+ " stl_c %0,%1\n"
+ " beq %0,3f\n"
+ "2:\n"
+#ifdef CONFIG_SMP
+ " mb\n"
+#endif
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ :"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+ :"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+ return oldbit != 0;
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline bool
+arch___test_and_set_bit(unsigned long nr, volatile unsigned long *addr)
+{
+ unsigned long mask = 1 << (nr & 0x1f);
+ int *m = ((int *) addr) + (nr >> 5);
+ int old = *m;
+
+ *m = old | mask;
+ return (old & mask) != 0;
+}
+
+static inline int
+test_and_clear_bit(unsigned long nr, volatile void * addr)
+{
+ unsigned long oldbit;
+ unsigned long temp;
+ int *m = ((int *) addr) + (nr >> 5);
+
+ __asm__ __volatile__(
+#ifdef CONFIG_SMP
+ " mb\n"
+#endif
+ "1: ldl_l %0,%4\n"
+ " and %0,%3,%2\n"
+ " beq %2,2f\n"
+ " xor %0,%3,%0\n"
+ " stl_c %0,%1\n"
+ " beq %0,3f\n"
+ "2:\n"
+#ifdef CONFIG_SMP
+ " mb\n"
+#endif
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ :"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+ :"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+ return oldbit != 0;
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline bool
+arch___test_and_clear_bit(unsigned long nr, volatile unsigned long *addr)
+{
+ unsigned long mask = 1 << (nr & 0x1f);
+ int *m = ((int *) addr) + (nr >> 5);
+ int old = *m;
+
+ *m = old & ~mask;
+ return (old & mask) != 0;
+}
+
+static inline int
+test_and_change_bit(unsigned long nr, volatile void * addr)
+{
+ unsigned long oldbit;
+ unsigned long temp;
+ int *m = ((int *) addr) + (nr >> 5);
+
+ __asm__ __volatile__(
+#ifdef CONFIG_SMP
+ " mb\n"
+#endif
+ "1: ldl_l %0,%4\n"
+ " and %0,%3,%2\n"
+ " xor %0,%3,%0\n"
+ " stl_c %0,%1\n"
+ " beq %0,3f\n"
+#ifdef CONFIG_SMP
+ " mb\n"
+#endif
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ :"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+ :"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+ return oldbit != 0;
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline bool
+arch___test_and_change_bit(unsigned long nr, volatile unsigned long *addr)
+{
+ unsigned long mask = 1 << (nr & 0x1f);
+ int *m = ((int *) addr) + (nr >> 5);
+ int old = *m;
+
+ *m = old ^ mask;
+ return (old & mask) != 0;
+}
+
+#define arch_test_bit generic_test_bit
+#define arch_test_bit_acquire generic_test_bit_acquire
+
+/*
+ * ffz = Find First Zero in word. Undefined if no zero exists,
+ * so code should check against ~0UL first..
+ *
+ * Do a binary search on the bits. Due to the nature of large
+ * constants on the alpha, it is worthwhile to split the search.
+ */
+static inline unsigned long ffz_b(unsigned long x)
+{
+ unsigned long sum, x1, x2, x4;
+
+ x = ~x & -~x; /* set first 0 bit, clear others */
+ x1 = x & 0xAA;
+ x2 = x & 0xCC;
+ x4 = x & 0xF0;
+ sum = x2 ? 2 : 0;
+ sum += (x4 != 0) * 4;
+ sum += (x1 != 0);
+
+ return sum;
+}
+
+static inline unsigned long ffz(unsigned long word)
+{
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+ /* Whee. EV67 can calculate it directly. */
+ return __kernel_cttz(~word);
+#else
+ unsigned long bits, qofs, bofs;
+
+ bits = __kernel_cmpbge(word, ~0UL);
+ qofs = ffz_b(bits);
+ bits = __kernel_extbl(word, qofs);
+ bofs = ffz_b(bits);
+
+ return qofs*8 + bofs;
+#endif
+}
+
+/*
+ * __ffs = Find First set bit in word. Undefined if no set bit exists.
+ */
+static inline unsigned long __ffs(unsigned long word)
+{
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+ /* Whee. EV67 can calculate it directly. */
+ return __kernel_cttz(word);
+#else
+ unsigned long bits, qofs, bofs;
+
+ bits = __kernel_cmpbge(0, word);
+ qofs = ffz_b(bits);
+ bits = __kernel_extbl(word, qofs);
+ bofs = ffz_b(~bits);
+
+ return qofs*8 + bofs;
+#endif
+}
+
+#ifdef __KERNEL__
+
+/*
+ * ffs: find first bit set. This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above __ffs.
+ */
+
+static inline int ffs(int word)
+{
+ int result = __ffs(word) + 1;
+ return word ? result : 0;
+}
+
+/*
+ * fls: find last bit set.
+ */
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+static inline int fls64(unsigned long word)
+{
+ return 64 - __kernel_ctlz(word);
+}
+#else
+extern const unsigned char __flsm1_tab[256];
+
+static inline int fls64(unsigned long x)
+{
+ unsigned long t, a, r;
+
+ t = __kernel_cmpbge (x, 0x0101010101010101UL);
+ a = __flsm1_tab[t];
+ t = __kernel_extbl (x, a);
+ r = a*8 + __flsm1_tab[t] + (x != 0);
+
+ return r;
+}
+#endif
+
+static inline unsigned long __fls(unsigned long x)
+{
+ return fls64(x) - 1;
+}
+
+static inline int fls(unsigned int x)
+{
+ return fls64(x);
+}
+
+/*
+ * hweightN: returns the hamming weight (i.e. the number
+ * of bits set) of a N-bit word
+ */
+
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+/* Whee. EV67 can calculate it directly. */
+static inline unsigned long __arch_hweight64(unsigned long w)
+{
+ return __kernel_ctpop(w);
+}
+
+static inline unsigned int __arch_hweight32(unsigned int w)
+{
+ return __arch_hweight64(w);
+}
+
+static inline unsigned int __arch_hweight16(unsigned int w)
+{
+ return __arch_hweight64(w & 0xffff);
+}
+
+static inline unsigned int __arch_hweight8(unsigned int w)
+{
+ return __arch_hweight64(w & 0xff);
+}
+#else
+#include <asm-generic/bitops/arch_hweight.h>
+#endif
+
+#include <asm-generic/bitops/const_hweight.h>
+
+#endif /* __KERNEL__ */
+
+#ifdef __KERNEL__
+
+/*
+ * Every architecture must define this function. It's the fastest
+ * way of searching a 100-bit bitmap. It's guaranteed that at least
+ * one of the 100 bits is cleared.
+ */
+static inline unsigned long
+sched_find_first_bit(const unsigned long b[2])
+{
+ unsigned long b0, b1, ofs, tmp;
+
+ b0 = b[0];
+ b1 = b[1];
+ ofs = (b0 ? 0 : 64);
+ tmp = (b0 ? b0 : b1);
+
+ return __ffs(tmp) + ofs;
+}
+
+#include <asm-generic/bitops/non-instrumented-non-atomic.h>
+
+#include <asm-generic/bitops/le.h>
+
+#include <asm-generic/bitops/ext2-atomic-setbit.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* _ALPHA_BITOPS_H */
diff --git a/arch/alpha/include/asm/bug.h b/arch/alpha/include/asm/bug.h
new file mode 100644
index 0000000000..b88ebdfedf
--- /dev/null
+++ b/arch/alpha/include/asm/bug.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_BUG_H
+#define _ALPHA_BUG_H
+
+#include <linux/linkage.h>
+
+#ifdef CONFIG_BUG
+#include <asm/pal.h>
+
+/* ??? Would be nice to use .gprel32 here, but we can't be sure that the
+ function loaded the GP, so this could fail in modules. */
+#define BUG() do { \
+ __asm__ __volatile__( \
+ "call_pal %0 # bugchk\n\t" \
+ ".long %1\n\t.8byte %2" \
+ : : "i"(PAL_bugchk), "i"(__LINE__), "i"(__FILE__)); \
+ unreachable(); \
+ } while (0)
+
+#define HAVE_ARCH_BUG
+#endif
+
+#include <asm-generic/bug.h>
+
+#endif
diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
new file mode 100644
index 0000000000..6ce508c689
--- /dev/null
+++ b/arch/alpha/include/asm/cache.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/cache.h
+ */
+#ifndef __ARCH_ALPHA_CACHE_H
+#define __ARCH_ALPHA_CACHE_H
+
+
+/* Bytes per L1 (data) cache line. */
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
+# define L1_CACHE_BYTES 64
+# define L1_CACHE_SHIFT 6
+#else
+/* Both EV4 and EV5 are write-through, read-allocate,
+ direct-mapped, physical.
+*/
+# define L1_CACHE_BYTES 32
+# define L1_CACHE_SHIFT 5
+#endif
+
+#define SMP_CACHE_BYTES L1_CACHE_BYTES
+
+#endif
diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/cacheflush.h
new file mode 100644
index 0000000000..36a7e924c3
--- /dev/null
+++ b/arch/alpha/include/asm/cacheflush.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CACHEFLUSH_H
+#define _ALPHA_CACHEFLUSH_H
+
+#include <linux/mm.h>
+
+/* Note that the following two definitions are _highly_ dependent
+ on the contexts in which they are used in the kernel. I personally
+ think it is criminal how loosely defined these macros are. */
+
+/* We need to flush the kernel's icache after loading modules. The
+ only other use of this macro is in load_aout_interp which is not
+ used on Alpha.
+
+ Note that this definition should *not* be used for userspace
+ icache flushing. While functional, it is _way_ overkill. The
+ icache is tagged with ASNs and it suffices to allocate a new ASN
+ for the process. */
+#ifndef CONFIG_SMP
+#define flush_icache_range(start, end) imb()
+#else
+#define flush_icache_range(start, end) smp_imb()
+extern void smp_imb(void);
+#endif
+
+/* We need to flush the userspace icache after setting breakpoints in
+ ptrace.
+
+ Instead of indiscriminately using imb, take advantage of the fact
+ that icache entries are tagged with the ASN and load a new mm context. */
+/* ??? Ought to use this in arch/alpha/kernel/signal.c too. */
+
+#ifndef CONFIG_SMP
+#include <linux/sched.h>
+
+extern void __load_new_mm_context(struct mm_struct *);
+static inline void
+flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
+ unsigned long addr, int len)
+{
+ if (vma->vm_flags & VM_EXEC) {
+ struct mm_struct *mm = vma->vm_mm;
+ if (current->active_mm == mm)
+ __load_new_mm_context(mm);
+ else
+ mm->context[smp_processor_id()] = 0;
+ }
+}
+#define flush_icache_user_page flush_icache_user_page
+#else /* CONFIG_SMP */
+extern void flush_icache_user_page(struct vm_area_struct *vma,
+ struct page *page, unsigned long addr, int len);
+#define flush_icache_user_page flush_icache_user_page
+#endif /* CONFIG_SMP */
+
+/*
+ * Both implementations of flush_icache_user_page flush the entire
+ * address space, so one call, no matter how many pages.
+ */
+static inline void flush_icache_pages(struct vm_area_struct *vma,
+ struct page *page, unsigned int nr)
+{
+ flush_icache_user_page(vma, page, 0, 0);
+}
+#define flush_icache_pages flush_icache_pages
+
+#include <asm-generic/cacheflush.h>
+
+#endif /* _ALPHA_CACHEFLUSH_H */
diff --git a/arch/alpha/include/asm/checksum.h b/arch/alpha/include/asm/checksum.h
new file mode 100644
index 0000000000..99d631e146
--- /dev/null
+++ b/arch/alpha/include/asm/checksum.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CHECKSUM_H
+#define _ALPHA_CHECKSUM_H
+
+#include <linux/in6.h>
+
+/*
+ * This is a version of ip_compute_csum() optimized for IP headers,
+ * which always checksum on 4 octet boundaries.
+ */
+extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+ __u32 len, __u8 proto, __wsum sum);
+
+__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+ __u32 len, __u8 proto, __wsum sum);
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+extern __wsum csum_partial(const void *buff, int len, __wsum sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
+#define _HAVE_ARCH_CSUM_AND_COPY
+__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len);
+
+__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len);
+
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+
+extern __sum16 ip_compute_csum(const void *buff, int len);
+
+/*
+ * Fold a partial checksum without adding pseudo headers
+ */
+
+static inline __sum16 csum_fold(__wsum csum)
+{
+ u32 sum = (__force u32)csum;
+ sum = (sum & 0xffff) + (sum >> 16);
+ sum = (sum & 0xffff) + (sum >> 16);
+ return (__force __sum16)~sum;
+}
+
+#define _HAVE_ARCH_IPV6_CSUM
+extern __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
+ const struct in6_addr *daddr,
+ __u32 len, __u8 proto, __wsum sum);
+#endif
diff --git a/arch/alpha/include/asm/cmpxchg.h b/arch/alpha/include/asm/cmpxchg.h
new file mode 100644
index 0000000000..91d4a4d925
--- /dev/null
+++ b/arch/alpha/include/asm/cmpxchg.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CMPXCHG_H
+#define _ALPHA_CMPXCHG_H
+
+/*
+ * Atomic exchange routines.
+ */
+
+#define ____xchg(type, args...) __arch_xchg ## type ## _local(args)
+#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args)
+#include <asm/xchg.h>
+
+#define xchg_local(ptr, x) \
+({ \
+ __typeof__(*(ptr)) _x_ = (x); \
+ (__typeof__(*(ptr))) __arch_xchg_local((ptr), (unsigned long)_x_,\
+ sizeof(*(ptr))); \
+})
+
+#define arch_cmpxchg_local(ptr, o, n) \
+({ \
+ __typeof__(*(ptr)) _o_ = (o); \
+ __typeof__(*(ptr)) _n_ = (n); \
+ (__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \
+ (unsigned long)_n_, \
+ sizeof(*(ptr))); \
+})
+
+#define arch_cmpxchg64_local(ptr, o, n) \
+({ \
+ BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
+ cmpxchg_local((ptr), (o), (n)); \
+})
+
+#undef ____xchg
+#undef ____cmpxchg
+#define ____xchg(type, args...) __arch_xchg ##type(args)
+#define ____cmpxchg(type, args...) __cmpxchg ##type(args)
+#include <asm/xchg.h>
+
+/*
+ * The leading and the trailing memory barriers guarantee that these
+ * operations are fully ordered.
+ */
+#define arch_xchg(ptr, x) \
+({ \
+ __typeof__(*(ptr)) __ret; \
+ __typeof__(*(ptr)) _x_ = (x); \
+ smp_mb(); \
+ __ret = (__typeof__(*(ptr))) \
+ __arch_xchg((ptr), (unsigned long)_x_, sizeof(*(ptr))); \
+ smp_mb(); \
+ __ret; \
+})
+
+#define arch_cmpxchg(ptr, o, n) \
+({ \
+ __typeof__(*(ptr)) __ret; \
+ __typeof__(*(ptr)) _o_ = (o); \
+ __typeof__(*(ptr)) _n_ = (n); \
+ smp_mb(); \
+ __ret = (__typeof__(*(ptr))) __cmpxchg((ptr), \
+ (unsigned long)_o_, (unsigned long)_n_, sizeof(*(ptr)));\
+ smp_mb(); \
+ __ret; \
+})
+
+#define arch_cmpxchg64(ptr, o, n) \
+({ \
+ BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
+ arch_cmpxchg((ptr), (o), (n)); \
+})
+
+#undef ____cmpxchg
+
+#endif /* _ALPHA_CMPXCHG_H */
diff --git a/arch/alpha/include/asm/compiler.h b/arch/alpha/include/asm/compiler.h
new file mode 100644
index 0000000000..ae64595901
--- /dev/null
+++ b/arch/alpha/include/asm/compiler.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_COMPILER_H
+#define __ALPHA_COMPILER_H
+
+#include <uapi/asm/compiler.h>
+
+#endif /* __ALPHA_COMPILER_H */
diff --git a/arch/alpha/include/asm/console.h b/arch/alpha/include/asm/console.h
new file mode 100644
index 0000000000..088b7b9eb1
--- /dev/null
+++ b/arch/alpha/include/asm/console.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __AXP_CONSOLE_H
+#define __AXP_CONSOLE_H
+
+#include <uapi/asm/console.h>
+
+#ifndef __ASSEMBLY__
+extern long callback_puts(long unit, const char *s, long length);
+extern long callback_getc(long unit);
+extern long callback_open_console(void);
+extern long callback_close_console(void);
+extern long callback_open(const char *device, long length);
+extern long callback_close(long unit);
+extern long callback_read(long channel, long count, const char *buf, long lbn);
+extern long callback_getenv(long id, const char *buf, unsigned long buf_size);
+extern long callback_setenv(long id, const char *buf, unsigned long buf_size);
+extern long callback_save_env(void);
+
+extern int srm_fixup(unsigned long new_callback_addr,
+ unsigned long new_hwrpb_addr);
+extern long srm_puts(const char *, long);
+extern long srm_printk(const char *, ...)
+ __attribute__ ((format (printf, 1, 2)));
+
+struct crb_struct;
+struct hwrpb_struct;
+extern int callback_init_done;
+extern void * callback_init(void *);
+#endif /* __ASSEMBLY__ */
+#endif /* __AXP_CONSOLE_H */
diff --git a/arch/alpha/include/asm/core_apecs.h b/arch/alpha/include/asm/core_apecs.h
new file mode 100644
index 0000000000..69a2fc62c9
--- /dev/null
+++ b/arch/alpha/include/asm/core_apecs.h
@@ -0,0 +1,534 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_APECS__H__
+#define __ALPHA_APECS__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * APECS is the internal name for the 2107x chipset which provides
+ * memory controller and PCI access for the 21064 chip based systems.
+ *
+ * This file is based on:
+ *
+ * DECchip 21071-AA and DECchip 21072-AA Core Logic Chipsets
+ * Data Sheet
+ *
+ * EC-N0648-72
+ *
+ *
+ * david.rusling@reo.mts.dec.com Initial Version.
+ *
+ */
+
+/*
+ An AVANTI *might* be an XL, and an XL has only 27 bits of ISA address
+ that get passed through the PCI<->ISA bridge chip. So we've gotta use
+ both windows to max out the physical memory we can DMA to. Sigh...
+
+ If we try a window at 0 for 1GB as a work-around, we run into conflicts
+ with ISA/PCI bus memory which can't be relocated, like VGA aperture and
+ BIOS ROMs. So we must put the windows high enough to avoid these areas.
+
+ We put window 1 at BUS 64Mb for 64Mb, mapping physical 0 to 64Mb-1,
+ and window 2 at BUS 1Gb for 1Gb, mapping physical 0 to 1Gb-1.
+ Yes, this does map 0 to 64Mb-1 twice, but only window 1 will actually
+ be used for that range (via virt_to_bus()).
+
+ Note that we actually fudge the window 1 maximum as 48Mb instead of 64Mb,
+ to keep virt_to_bus() from returning an address in the first window, for
+ a data area that goes beyond the 64Mb first DMA window. Sigh...
+ The fudge factor MUST match with <asm/dma.h> MAX_DMA_ADDRESS, but
+ we can't just use that here, because of header file looping... :-(
+
+ Window 1 will be used for all DMA from the ISA bus; yes, that does
+ limit what memory an ISA floppy or sound card or Ethernet can touch, but
+ it's also a known limitation on other platforms as well. We use the
+ same technique that is used on INTEL platforms with similar limitation:
+ set MAX_DMA_ADDRESS and clear some pages' DMAable flags during mem_init().
+ We trust that any ISA bus device drivers will *always* ask for DMAable
+ memory explicitly via kmalloc()/get_free_pages() flags arguments.
+
+ Note that most PCI bus devices' drivers do *not* explicitly ask for
+ DMAable memory; they count on being able to DMA to any memory they
+ get from kmalloc()/get_free_pages(). They will also use window 1 for
+ any physical memory accesses below 64Mb; the rest will be handled by
+ window 2, maxing out at 1Gb of memory. I trust this is enough... :-)
+
+ We hope that the area before the first window is large enough so that
+ there will be no overlap at the top end (64Mb). We *must* locate the
+ PCI cards' memory just below window 1, so that there's still the
+ possibility of being able to access it via SPARSE space. This is
+ important for cards such as the Matrox Millennium, whose Xserver
+ wants to access memory-mapped registers in byte and short lengths.
+
+ Note that the XL is treated differently from the AVANTI, even though
+ for most other things they are identical. It didn't seem reasonable to
+ make the AVANTI support pay for the limitations of the XL. It is true,
+ however, that an XL kernel will run on an AVANTI without problems.
+
+ %%% All of this should be obviated by the ability to route
+ everything through the iommu.
+*/
+
+/*
+ * 21071-DA Control and Status registers.
+ * These are used for PCI memory access.
+ */
+#define APECS_IOC_DCSR (IDENT_ADDR + 0x1A0000000UL)
+#define APECS_IOC_PEAR (IDENT_ADDR + 0x1A0000020UL)
+#define APECS_IOC_SEAR (IDENT_ADDR + 0x1A0000040UL)
+#define APECS_IOC_DR1 (IDENT_ADDR + 0x1A0000060UL)
+#define APECS_IOC_DR2 (IDENT_ADDR + 0x1A0000080UL)
+#define APECS_IOC_DR3 (IDENT_ADDR + 0x1A00000A0UL)
+
+#define APECS_IOC_TB1R (IDENT_ADDR + 0x1A00000C0UL)
+#define APECS_IOC_TB2R (IDENT_ADDR + 0x1A00000E0UL)
+
+#define APECS_IOC_PB1R (IDENT_ADDR + 0x1A0000100UL)
+#define APECS_IOC_PB2R (IDENT_ADDR + 0x1A0000120UL)
+
+#define APECS_IOC_PM1R (IDENT_ADDR + 0x1A0000140UL)
+#define APECS_IOC_PM2R (IDENT_ADDR + 0x1A0000160UL)
+
+#define APECS_IOC_HAXR0 (IDENT_ADDR + 0x1A0000180UL)
+#define APECS_IOC_HAXR1 (IDENT_ADDR + 0x1A00001A0UL)
+#define APECS_IOC_HAXR2 (IDENT_ADDR + 0x1A00001C0UL)
+
+#define APECS_IOC_PMLT (IDENT_ADDR + 0x1A00001E0UL)
+
+#define APECS_IOC_TLBTAG0 (IDENT_ADDR + 0x1A0000200UL)
+#define APECS_IOC_TLBTAG1 (IDENT_ADDR + 0x1A0000220UL)
+#define APECS_IOC_TLBTAG2 (IDENT_ADDR + 0x1A0000240UL)
+#define APECS_IOC_TLBTAG3 (IDENT_ADDR + 0x1A0000260UL)
+#define APECS_IOC_TLBTAG4 (IDENT_ADDR + 0x1A0000280UL)
+#define APECS_IOC_TLBTAG5 (IDENT_ADDR + 0x1A00002A0UL)
+#define APECS_IOC_TLBTAG6 (IDENT_ADDR + 0x1A00002C0UL)
+#define APECS_IOC_TLBTAG7 (IDENT_ADDR + 0x1A00002E0UL)
+
+#define APECS_IOC_TLBDATA0 (IDENT_ADDR + 0x1A0000300UL)
+#define APECS_IOC_TLBDATA1 (IDENT_ADDR + 0x1A0000320UL)
+#define APECS_IOC_TLBDATA2 (IDENT_ADDR + 0x1A0000340UL)
+#define APECS_IOC_TLBDATA3 (IDENT_ADDR + 0x1A0000360UL)
+#define APECS_IOC_TLBDATA4 (IDENT_ADDR + 0x1A0000380UL)
+#define APECS_IOC_TLBDATA5 (IDENT_ADDR + 0x1A00003A0UL)
+#define APECS_IOC_TLBDATA6 (IDENT_ADDR + 0x1A00003C0UL)
+#define APECS_IOC_TLBDATA7 (IDENT_ADDR + 0x1A00003E0UL)
+
+#define APECS_IOC_TBIA (IDENT_ADDR + 0x1A0000400UL)
+
+
+/*
+ * 21071-CA Control and Status registers.
+ * These are used to program memory timing,
+ * configure memory and initialise the B-Cache.
+ */
+#define APECS_MEM_GCR (IDENT_ADDR + 0x180000000UL)
+#define APECS_MEM_EDSR (IDENT_ADDR + 0x180000040UL)
+#define APECS_MEM_TAR (IDENT_ADDR + 0x180000060UL)
+#define APECS_MEM_ELAR (IDENT_ADDR + 0x180000080UL)
+#define APECS_MEM_EHAR (IDENT_ADDR + 0x1800000a0UL)
+#define APECS_MEM_SFT_RST (IDENT_ADDR + 0x1800000c0UL)
+#define APECS_MEM_LDxLAR (IDENT_ADDR + 0x1800000e0UL)
+#define APECS_MEM_LDxHAR (IDENT_ADDR + 0x180000100UL)
+#define APECS_MEM_GTR (IDENT_ADDR + 0x180000200UL)
+#define APECS_MEM_RTR (IDENT_ADDR + 0x180000220UL)
+#define APECS_MEM_VFPR (IDENT_ADDR + 0x180000240UL)
+#define APECS_MEM_PDLDR (IDENT_ADDR + 0x180000260UL)
+#define APECS_MEM_PDhDR (IDENT_ADDR + 0x180000280UL)
+
+/* Bank x Base Address Register */
+#define APECS_MEM_B0BAR (IDENT_ADDR + 0x180000800UL)
+#define APECS_MEM_B1BAR (IDENT_ADDR + 0x180000820UL)
+#define APECS_MEM_B2BAR (IDENT_ADDR + 0x180000840UL)
+#define APECS_MEM_B3BAR (IDENT_ADDR + 0x180000860UL)
+#define APECS_MEM_B4BAR (IDENT_ADDR + 0x180000880UL)
+#define APECS_MEM_B5BAR (IDENT_ADDR + 0x1800008A0UL)
+#define APECS_MEM_B6BAR (IDENT_ADDR + 0x1800008C0UL)
+#define APECS_MEM_B7BAR (IDENT_ADDR + 0x1800008E0UL)
+#define APECS_MEM_B8BAR (IDENT_ADDR + 0x180000900UL)
+
+/* Bank x Configuration Register */
+#define APECS_MEM_B0BCR (IDENT_ADDR + 0x180000A00UL)
+#define APECS_MEM_B1BCR (IDENT_ADDR + 0x180000A20UL)
+#define APECS_MEM_B2BCR (IDENT_ADDR + 0x180000A40UL)
+#define APECS_MEM_B3BCR (IDENT_ADDR + 0x180000A60UL)
+#define APECS_MEM_B4BCR (IDENT_ADDR + 0x180000A80UL)
+#define APECS_MEM_B5BCR (IDENT_ADDR + 0x180000AA0UL)
+#define APECS_MEM_B6BCR (IDENT_ADDR + 0x180000AC0UL)
+#define APECS_MEM_B7BCR (IDENT_ADDR + 0x180000AE0UL)
+#define APECS_MEM_B8BCR (IDENT_ADDR + 0x180000B00UL)
+
+/* Bank x Timing Register A */
+#define APECS_MEM_B0TRA (IDENT_ADDR + 0x180000C00UL)
+#define APECS_MEM_B1TRA (IDENT_ADDR + 0x180000C20UL)
+#define APECS_MEM_B2TRA (IDENT_ADDR + 0x180000C40UL)
+#define APECS_MEM_B3TRA (IDENT_ADDR + 0x180000C60UL)
+#define APECS_MEM_B4TRA (IDENT_ADDR + 0x180000C80UL)
+#define APECS_MEM_B5TRA (IDENT_ADDR + 0x180000CA0UL)
+#define APECS_MEM_B6TRA (IDENT_ADDR + 0x180000CC0UL)
+#define APECS_MEM_B7TRA (IDENT_ADDR + 0x180000CE0UL)
+#define APECS_MEM_B8TRA (IDENT_ADDR + 0x180000D00UL)
+
+/* Bank x Timing Register B */
+#define APECS_MEM_B0TRB (IDENT_ADDR + 0x180000E00UL)
+#define APECS_MEM_B1TRB (IDENT_ADDR + 0x180000E20UL)
+#define APECS_MEM_B2TRB (IDENT_ADDR + 0x180000E40UL)
+#define APECS_MEM_B3TRB (IDENT_ADDR + 0x180000E60UL)
+#define APECS_MEM_B4TRB (IDENT_ADDR + 0x180000E80UL)
+#define APECS_MEM_B5TRB (IDENT_ADDR + 0x180000EA0UL)
+#define APECS_MEM_B6TRB (IDENT_ADDR + 0x180000EC0UL)
+#define APECS_MEM_B7TRB (IDENT_ADDR + 0x180000EE0UL)
+#define APECS_MEM_B8TRB (IDENT_ADDR + 0x180000F00UL)
+
+
+/*
+ * Memory spaces:
+ */
+#define APECS_IACK_SC (IDENT_ADDR + 0x1b0000000UL)
+#define APECS_CONF (IDENT_ADDR + 0x1e0000000UL)
+#define APECS_IO (IDENT_ADDR + 0x1c0000000UL)
+#define APECS_SPARSE_MEM (IDENT_ADDR + 0x200000000UL)
+#define APECS_DENSE_MEM (IDENT_ADDR + 0x300000000UL)
+
+
+/*
+ * Bit definitions for I/O Controller status register 0:
+ */
+#define APECS_IOC_STAT0_CMD 0xf
+#define APECS_IOC_STAT0_ERR (1<<4)
+#define APECS_IOC_STAT0_LOST (1<<5)
+#define APECS_IOC_STAT0_THIT (1<<6)
+#define APECS_IOC_STAT0_TREF (1<<7)
+#define APECS_IOC_STAT0_CODE_SHIFT 8
+#define APECS_IOC_STAT0_CODE_MASK 0x7
+#define APECS_IOC_STAT0_P_NBR_SHIFT 13
+#define APECS_IOC_STAT0_P_NBR_MASK 0x7ffff
+
+#define APECS_HAE_ADDRESS APECS_IOC_HAXR1
+
+
+/*
+ * Data structure for handling APECS machine checks:
+ */
+
+struct el_apecs_mikasa_sysdata_mcheck
+{
+ unsigned long coma_gcr;
+ unsigned long coma_edsr;
+ unsigned long coma_ter;
+ unsigned long coma_elar;
+ unsigned long coma_ehar;
+ unsigned long coma_ldlr;
+ unsigned long coma_ldhr;
+ unsigned long coma_base0;
+ unsigned long coma_base1;
+ unsigned long coma_base2;
+ unsigned long coma_base3;
+ unsigned long coma_cnfg0;
+ unsigned long coma_cnfg1;
+ unsigned long coma_cnfg2;
+ unsigned long coma_cnfg3;
+ unsigned long epic_dcsr;
+ unsigned long epic_pear;
+ unsigned long epic_sear;
+ unsigned long epic_tbr1;
+ unsigned long epic_tbr2;
+ unsigned long epic_pbr1;
+ unsigned long epic_pbr2;
+ unsigned long epic_pmr1;
+ unsigned long epic_pmr2;
+ unsigned long epic_harx1;
+ unsigned long epic_harx2;
+ unsigned long epic_pmlt;
+ unsigned long epic_tag0;
+ unsigned long epic_tag1;
+ unsigned long epic_tag2;
+ unsigned long epic_tag3;
+ unsigned long epic_tag4;
+ unsigned long epic_tag5;
+ unsigned long epic_tag6;
+ unsigned long epic_tag7;
+ unsigned long epic_data0;
+ unsigned long epic_data1;
+ unsigned long epic_data2;
+ unsigned long epic_data3;
+ unsigned long epic_data4;
+ unsigned long epic_data5;
+ unsigned long epic_data6;
+ unsigned long epic_data7;
+
+ unsigned long pceb_vid;
+ unsigned long pceb_did;
+ unsigned long pceb_revision;
+ unsigned long pceb_command;
+ unsigned long pceb_status;
+ unsigned long pceb_latency;
+ unsigned long pceb_control;
+ unsigned long pceb_arbcon;
+ unsigned long pceb_arbpri;
+
+ unsigned long esc_id;
+ unsigned long esc_revision;
+ unsigned long esc_int0;
+ unsigned long esc_int1;
+ unsigned long esc_elcr0;
+ unsigned long esc_elcr1;
+ unsigned long esc_last_eisa;
+ unsigned long esc_nmi_stat;
+
+ unsigned long pci_ir;
+ unsigned long pci_imr;
+ unsigned long svr_mgr;
+};
+
+/* This for the normal APECS machines. */
+struct el_apecs_sysdata_mcheck
+{
+ unsigned long coma_gcr;
+ unsigned long coma_edsr;
+ unsigned long coma_ter;
+ unsigned long coma_elar;
+ unsigned long coma_ehar;
+ unsigned long coma_ldlr;
+ unsigned long coma_ldhr;
+ unsigned long coma_base0;
+ unsigned long coma_base1;
+ unsigned long coma_base2;
+ unsigned long coma_cnfg0;
+ unsigned long coma_cnfg1;
+ unsigned long coma_cnfg2;
+ unsigned long epic_dcsr;
+ unsigned long epic_pear;
+ unsigned long epic_sear;
+ unsigned long epic_tbr1;
+ unsigned long epic_tbr2;
+ unsigned long epic_pbr1;
+ unsigned long epic_pbr2;
+ unsigned long epic_pmr1;
+ unsigned long epic_pmr2;
+ unsigned long epic_harx1;
+ unsigned long epic_harx2;
+ unsigned long epic_pmlt;
+ unsigned long epic_tag0;
+ unsigned long epic_tag1;
+ unsigned long epic_tag2;
+ unsigned long epic_tag3;
+ unsigned long epic_tag4;
+ unsigned long epic_tag5;
+ unsigned long epic_tag6;
+ unsigned long epic_tag7;
+ unsigned long epic_data0;
+ unsigned long epic_data1;
+ unsigned long epic_data2;
+ unsigned long epic_data3;
+ unsigned long epic_data4;
+ unsigned long epic_data5;
+ unsigned long epic_data6;
+ unsigned long epic_data7;
+};
+
+struct el_apecs_procdata
+{
+ unsigned long paltemp[32]; /* PAL TEMP REGS. */
+ /* EV4-specific fields */
+ unsigned long exc_addr; /* Address of excepting instruction. */
+ unsigned long exc_sum; /* Summary of arithmetic traps. */
+ unsigned long exc_mask; /* Exception mask (from exc_sum). */
+ unsigned long iccsr; /* IBox hardware enables. */
+ unsigned long pal_base; /* Base address for PALcode. */
+ unsigned long hier; /* Hardware Interrupt Enable. */
+ unsigned long hirr; /* Hardware Interrupt Request. */
+ unsigned long csr; /* D-stream fault info. */
+ unsigned long dc_stat; /* D-cache status (ECC/Parity Err). */
+ unsigned long dc_addr; /* EV3 Phys Addr for ECC/DPERR. */
+ unsigned long abox_ctl; /* ABox Control Register. */
+ unsigned long biu_stat; /* BIU Status. */
+ unsigned long biu_addr; /* BUI Address. */
+ unsigned long biu_ctl; /* BIU Control. */
+ unsigned long fill_syndrome;/* For correcting ECC errors. */
+ unsigned long fill_addr; /* Cache block which was being read */
+ unsigned long va; /* Effective VA of fault or miss. */
+ unsigned long bc_tag; /* Backup Cache Tag Probe Results.*/
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * Unlike Jensen, the APECS machines have no concept of local
+ * I/O---everything goes over the PCI bus.
+ *
+ * There is plenty room for optimization here. In particular,
+ * the Alpha's insb/insw/extb/extw should be useful in moving
+ * data to/from the right byte-lanes.
+ */
+
+#define vip volatile int __force *
+#define vuip volatile unsigned int __force *
+#define vulp volatile unsigned long __force *
+
+#define APECS_SET_HAE \
+ do { \
+ if (addr >= (1UL << 24)) { \
+ unsigned long msb = addr & 0xf8000000; \
+ addr -= msb; \
+ set_hae(msb); \
+ } \
+ } while (0)
+
+__EXTERN_INLINE u8 apecs_ioread8(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long result, base_and_type;
+
+ if (addr >= APECS_DENSE_MEM) {
+ addr -= APECS_DENSE_MEM;
+ APECS_SET_HAE;
+ base_and_type = APECS_SPARSE_MEM + 0x00;
+ } else {
+ addr -= APECS_IO;
+ base_and_type = APECS_IO + 0x00;
+ }
+
+ result = *(vip) ((addr << 5) + base_and_type);
+ return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void apecs_iowrite8(u8 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long w, base_and_type;
+
+ if (addr >= APECS_DENSE_MEM) {
+ addr -= APECS_DENSE_MEM;
+ APECS_SET_HAE;
+ base_and_type = APECS_SPARSE_MEM + 0x00;
+ } else {
+ addr -= APECS_IO;
+ base_and_type = APECS_IO + 0x00;
+ }
+
+ w = __kernel_insbl(b, addr & 3);
+ *(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u16 apecs_ioread16(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long result, base_and_type;
+
+ if (addr >= APECS_DENSE_MEM) {
+ addr -= APECS_DENSE_MEM;
+ APECS_SET_HAE;
+ base_and_type = APECS_SPARSE_MEM + 0x08;
+ } else {
+ addr -= APECS_IO;
+ base_and_type = APECS_IO + 0x08;
+ }
+
+ result = *(vip) ((addr << 5) + base_and_type);
+ return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void apecs_iowrite16(u16 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long w, base_and_type;
+
+ if (addr >= APECS_DENSE_MEM) {
+ addr -= APECS_DENSE_MEM;
+ APECS_SET_HAE;
+ base_and_type = APECS_SPARSE_MEM + 0x08;
+ } else {
+ addr -= APECS_IO;
+ base_and_type = APECS_IO + 0x08;
+ }
+
+ w = __kernel_inswl(b, addr & 3);
+ *(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u32 apecs_ioread32(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < APECS_DENSE_MEM)
+ addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+ return *(vuip)addr;
+}
+
+__EXTERN_INLINE void apecs_iowrite32(u32 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < APECS_DENSE_MEM)
+ addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+ *(vuip)addr = b;
+}
+
+__EXTERN_INLINE u64 apecs_ioread64(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < APECS_DENSE_MEM)
+ addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+ return *(vulp)addr;
+}
+
+__EXTERN_INLINE void apecs_iowrite64(u64 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < APECS_DENSE_MEM)
+ addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+ *(vulp)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *apecs_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)(addr + APECS_IO);
+}
+
+__EXTERN_INLINE void __iomem *apecs_ioremap(unsigned long addr,
+ unsigned long size)
+{
+ return (void __iomem *)(addr + APECS_DENSE_MEM);
+}
+
+__EXTERN_INLINE int apecs_is_ioaddr(unsigned long addr)
+{
+ return addr >= IDENT_ADDR + 0x180000000UL;
+}
+
+__EXTERN_INLINE int apecs_is_mmio(const volatile void __iomem *addr)
+{
+ return (unsigned long)addr >= APECS_DENSE_MEM;
+}
+
+#undef APECS_SET_HAE
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX apecs
+#define apecs_trivial_io_bw 0
+#define apecs_trivial_io_lq 0
+#define apecs_trivial_rw_bw 2
+#define apecs_trivial_rw_lq 1
+#define apecs_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_APECS__H__ */
diff --git a/arch/alpha/include/asm/core_cia.h b/arch/alpha/include/asm/core_cia.h
new file mode 100644
index 0000000000..d26bdfb7ca
--- /dev/null
+++ b/arch/alpha/include/asm/core_cia.h
@@ -0,0 +1,517 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_CIA__H__
+#define __ALPHA_CIA__H__
+
+/* Define to experiment with fitting everything into one 512MB HAE window. */
+#define CIA_ONE_HAE_WINDOW 1
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * CIA is the internal name for the 21171 chipset which provides
+ * memory controller and PCI access for the 21164 chip based systems.
+ * Also supported here is the 21172 (CIA-2) and 21174 (PYXIS).
+ *
+ * The lineage is a bit confused, since the 21174 was reportedly started
+ * from the 21171 Pass 1 mask, and so is missing bug fixes that appear
+ * in 21171 Pass 2 and 21172, but it also contains additional features.
+ *
+ * This file is based on:
+ *
+ * DECchip 21171 Core Logic Chipset
+ * Technical Reference Manual
+ *
+ * EC-QE18B-TE
+ *
+ * david.rusling@reo.mts.dec.com Initial Version.
+ *
+ */
+
+/*
+ * CIA ADDRESS BIT DEFINITIONS
+ *
+ * 3333 3333 3322 2222 2222 1111 1111 11
+ * 9876 5432 1098 7654 3210 9876 5432 1098 7654 3210
+ * ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ * 1 000
+ * ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ * | |\|
+ * | Byte Enable --+ |
+ * | Transfer Length --+
+ * +-- IO space, not cached
+ *
+ * Byte Transfer
+ * Enable Length Transfer Byte Address
+ * adr<6:5> adr<4:3> Length Enable Adder
+ * ---------------------------------------------
+ * 00 00 Byte 1110 0x000
+ * 01 00 Byte 1101 0x020
+ * 10 00 Byte 1011 0x040
+ * 11 00 Byte 0111 0x060
+ *
+ * 00 01 Word 1100 0x008
+ * 01 01 Word 1001 0x028 <= Not supported in this code.
+ * 10 01 Word 0011 0x048
+ *
+ * 00 10 Tribyte 1000 0x010
+ * 01 10 Tribyte 0001 0x030
+ *
+ * 10 11 Longword 0000 0x058
+ *
+ * Note that byte enables are asserted low.
+ *
+ */
+
+#define CIA_MEM_R1_MASK 0x1fffffff /* SPARSE Mem region 1 mask is 29 bits */
+#define CIA_MEM_R2_MASK 0x07ffffff /* SPARSE Mem region 2 mask is 27 bits */
+#define CIA_MEM_R3_MASK 0x03ffffff /* SPARSE Mem region 3 mask is 26 bits */
+
+/*
+ * 21171-CA Control and Status Registers
+ */
+#define CIA_IOC_CIA_REV (IDENT_ADDR + 0x8740000080UL)
+# define CIA_REV_MASK 0xff
+#define CIA_IOC_PCI_LAT (IDENT_ADDR + 0x87400000C0UL)
+#define CIA_IOC_CIA_CTRL (IDENT_ADDR + 0x8740000100UL)
+# define CIA_CTRL_PCI_EN (1 << 0)
+# define CIA_CTRL_PCI_LOCK_EN (1 << 1)
+# define CIA_CTRL_PCI_LOOP_EN (1 << 2)
+# define CIA_CTRL_FST_BB_EN (1 << 3)
+# define CIA_CTRL_PCI_MST_EN (1 << 4)
+# define CIA_CTRL_PCI_MEM_EN (1 << 5)
+# define CIA_CTRL_PCI_REQ64_EN (1 << 6)
+# define CIA_CTRL_PCI_ACK64_EN (1 << 7)
+# define CIA_CTRL_ADDR_PE_EN (1 << 8)
+# define CIA_CTRL_PERR_EN (1 << 9)
+# define CIA_CTRL_FILL_ERR_EN (1 << 10)
+# define CIA_CTRL_MCHK_ERR_EN (1 << 11)
+# define CIA_CTRL_ECC_CHK_EN (1 << 12)
+# define CIA_CTRL_ASSERT_IDLE_BC (1 << 13)
+# define CIA_CTRL_COM_IDLE_BC (1 << 14)
+# define CIA_CTRL_CSR_IOA_BYPASS (1 << 15)
+# define CIA_CTRL_IO_FLUSHREQ_EN (1 << 16)
+# define CIA_CTRL_CPU_FLUSHREQ_EN (1 << 17)
+# define CIA_CTRL_ARB_CPU_EN (1 << 18)
+# define CIA_CTRL_EN_ARB_LINK (1 << 19)
+# define CIA_CTRL_RD_TYPE_SHIFT 20
+# define CIA_CTRL_RL_TYPE_SHIFT 24
+# define CIA_CTRL_RM_TYPE_SHIFT 28
+# define CIA_CTRL_EN_DMA_RD_PERF (1 << 31)
+#define CIA_IOC_CIA_CNFG (IDENT_ADDR + 0x8740000140UL)
+# define CIA_CNFG_IOA_BWEN (1 << 0)
+# define CIA_CNFG_PCI_MWEN (1 << 4)
+# define CIA_CNFG_PCI_DWEN (1 << 5)
+# define CIA_CNFG_PCI_WLEN (1 << 8)
+#define CIA_IOC_FLASH_CTRL (IDENT_ADDR + 0x8740000200UL)
+#define CIA_IOC_HAE_MEM (IDENT_ADDR + 0x8740000400UL)
+#define CIA_IOC_HAE_IO (IDENT_ADDR + 0x8740000440UL)
+#define CIA_IOC_CFG (IDENT_ADDR + 0x8740000480UL)
+#define CIA_IOC_CACK_EN (IDENT_ADDR + 0x8740000600UL)
+# define CIA_CACK_EN_LOCK_EN (1 << 0)
+# define CIA_CACK_EN_MB_EN (1 << 1)
+# define CIA_CACK_EN_SET_DIRTY_EN (1 << 2)
+# define CIA_CACK_EN_BC_VICTIM_EN (1 << 3)
+
+
+/*
+ * 21171-CA Diagnostic Registers
+ */
+#define CIA_IOC_CIA_DIAG (IDENT_ADDR + 0x8740002000UL)
+#define CIA_IOC_DIAG_CHECK (IDENT_ADDR + 0x8740003000UL)
+
+/*
+ * 21171-CA Performance Monitor registers
+ */
+#define CIA_IOC_PERF_MONITOR (IDENT_ADDR + 0x8740004000UL)
+#define CIA_IOC_PERF_CONTROL (IDENT_ADDR + 0x8740004040UL)
+
+/*
+ * 21171-CA Error registers
+ */
+#define CIA_IOC_CPU_ERR0 (IDENT_ADDR + 0x8740008000UL)
+#define CIA_IOC_CPU_ERR1 (IDENT_ADDR + 0x8740008040UL)
+#define CIA_IOC_CIA_ERR (IDENT_ADDR + 0x8740008200UL)
+# define CIA_ERR_COR_ERR (1 << 0)
+# define CIA_ERR_UN_COR_ERR (1 << 1)
+# define CIA_ERR_CPU_PE (1 << 2)
+# define CIA_ERR_MEM_NEM (1 << 3)
+# define CIA_ERR_PCI_SERR (1 << 4)
+# define CIA_ERR_PERR (1 << 5)
+# define CIA_ERR_PCI_ADDR_PE (1 << 6)
+# define CIA_ERR_RCVD_MAS_ABT (1 << 7)
+# define CIA_ERR_RCVD_TAR_ABT (1 << 8)
+# define CIA_ERR_PA_PTE_INV (1 << 9)
+# define CIA_ERR_FROM_WRT_ERR (1 << 10)
+# define CIA_ERR_IOA_TIMEOUT (1 << 11)
+# define CIA_ERR_LOST_CORR_ERR (1 << 16)
+# define CIA_ERR_LOST_UN_CORR_ERR (1 << 17)
+# define CIA_ERR_LOST_CPU_PE (1 << 18)
+# define CIA_ERR_LOST_MEM_NEM (1 << 19)
+# define CIA_ERR_LOST_PERR (1 << 21)
+# define CIA_ERR_LOST_PCI_ADDR_PE (1 << 22)
+# define CIA_ERR_LOST_RCVD_MAS_ABT (1 << 23)
+# define CIA_ERR_LOST_RCVD_TAR_ABT (1 << 24)
+# define CIA_ERR_LOST_PA_PTE_INV (1 << 25)
+# define CIA_ERR_LOST_FROM_WRT_ERR (1 << 26)
+# define CIA_ERR_LOST_IOA_TIMEOUT (1 << 27)
+# define CIA_ERR_VALID (1 << 31)
+#define CIA_IOC_CIA_STAT (IDENT_ADDR + 0x8740008240UL)
+#define CIA_IOC_ERR_MASK (IDENT_ADDR + 0x8740008280UL)
+#define CIA_IOC_CIA_SYN (IDENT_ADDR + 0x8740008300UL)
+#define CIA_IOC_MEM_ERR0 (IDENT_ADDR + 0x8740008400UL)
+#define CIA_IOC_MEM_ERR1 (IDENT_ADDR + 0x8740008440UL)
+#define CIA_IOC_PCI_ERR0 (IDENT_ADDR + 0x8740008800UL)
+#define CIA_IOC_PCI_ERR1 (IDENT_ADDR + 0x8740008840UL)
+#define CIA_IOC_PCI_ERR3 (IDENT_ADDR + 0x8740008880UL)
+
+/*
+ * 21171-CA System configuration registers
+ */
+#define CIA_IOC_MCR (IDENT_ADDR + 0x8750000000UL)
+#define CIA_IOC_MBA0 (IDENT_ADDR + 0x8750000600UL)
+#define CIA_IOC_MBA2 (IDENT_ADDR + 0x8750000680UL)
+#define CIA_IOC_MBA4 (IDENT_ADDR + 0x8750000700UL)
+#define CIA_IOC_MBA6 (IDENT_ADDR + 0x8750000780UL)
+#define CIA_IOC_MBA8 (IDENT_ADDR + 0x8750000800UL)
+#define CIA_IOC_MBAA (IDENT_ADDR + 0x8750000880UL)
+#define CIA_IOC_MBAC (IDENT_ADDR + 0x8750000900UL)
+#define CIA_IOC_MBAE (IDENT_ADDR + 0x8750000980UL)
+#define CIA_IOC_TMG0 (IDENT_ADDR + 0x8750000B00UL)
+#define CIA_IOC_TMG1 (IDENT_ADDR + 0x8750000B40UL)
+#define CIA_IOC_TMG2 (IDENT_ADDR + 0x8750000B80UL)
+
+/*
+ * 2117A-CA PCI Address and Scatter-Gather Registers.
+ */
+#define CIA_IOC_PCI_TBIA (IDENT_ADDR + 0x8760000100UL)
+
+#define CIA_IOC_PCI_W0_BASE (IDENT_ADDR + 0x8760000400UL)
+#define CIA_IOC_PCI_W0_MASK (IDENT_ADDR + 0x8760000440UL)
+#define CIA_IOC_PCI_T0_BASE (IDENT_ADDR + 0x8760000480UL)
+
+#define CIA_IOC_PCI_W1_BASE (IDENT_ADDR + 0x8760000500UL)
+#define CIA_IOC_PCI_W1_MASK (IDENT_ADDR + 0x8760000540UL)
+#define CIA_IOC_PCI_T1_BASE (IDENT_ADDR + 0x8760000580UL)
+
+#define CIA_IOC_PCI_W2_BASE (IDENT_ADDR + 0x8760000600UL)
+#define CIA_IOC_PCI_W2_MASK (IDENT_ADDR + 0x8760000640UL)
+#define CIA_IOC_PCI_T2_BASE (IDENT_ADDR + 0x8760000680UL)
+
+#define CIA_IOC_PCI_W3_BASE (IDENT_ADDR + 0x8760000700UL)
+#define CIA_IOC_PCI_W3_MASK (IDENT_ADDR + 0x8760000740UL)
+#define CIA_IOC_PCI_T3_BASE (IDENT_ADDR + 0x8760000780UL)
+
+#define CIA_IOC_PCI_Wn_BASE(N) (IDENT_ADDR + 0x8760000400UL + (N)*0x100)
+#define CIA_IOC_PCI_Wn_MASK(N) (IDENT_ADDR + 0x8760000440UL + (N)*0x100)
+#define CIA_IOC_PCI_Tn_BASE(N) (IDENT_ADDR + 0x8760000480UL + (N)*0x100)
+
+#define CIA_IOC_PCI_W_DAC (IDENT_ADDR + 0x87600007C0UL)
+
+/*
+ * 2117A-CA Address Translation Registers.
+ */
+
+/* 8 tag registers, the first 4 of which are lockable. */
+#define CIA_IOC_TB_TAGn(n) \
+ (IDENT_ADDR + 0x8760000800UL + (n)*0x40)
+
+/* 4 page registers per tag register. */
+#define CIA_IOC_TBn_PAGEm(n,m) \
+ (IDENT_ADDR + 0x8760001000UL + (n)*0x100 + (m)*0x40)
+
+/*
+ * Memory spaces:
+ */
+#define CIA_IACK_SC (IDENT_ADDR + 0x8720000000UL)
+#define CIA_CONF (IDENT_ADDR + 0x8700000000UL)
+#define CIA_IO (IDENT_ADDR + 0x8580000000UL)
+#define CIA_SPARSE_MEM (IDENT_ADDR + 0x8000000000UL)
+#define CIA_SPARSE_MEM_R2 (IDENT_ADDR + 0x8400000000UL)
+#define CIA_SPARSE_MEM_R3 (IDENT_ADDR + 0x8500000000UL)
+#define CIA_DENSE_MEM (IDENT_ADDR + 0x8600000000UL)
+#define CIA_BW_MEM (IDENT_ADDR + 0x8800000000UL)
+#define CIA_BW_IO (IDENT_ADDR + 0x8900000000UL)
+#define CIA_BW_CFG_0 (IDENT_ADDR + 0x8a00000000UL)
+#define CIA_BW_CFG_1 (IDENT_ADDR + 0x8b00000000UL)
+
+/*
+ * ALCOR's GRU ASIC registers
+ */
+#define GRU_INT_REQ (IDENT_ADDR + 0x8780000000UL)
+#define GRU_INT_MASK (IDENT_ADDR + 0x8780000040UL)
+#define GRU_INT_EDGE (IDENT_ADDR + 0x8780000080UL)
+#define GRU_INT_HILO (IDENT_ADDR + 0x87800000C0UL)
+#define GRU_INT_CLEAR (IDENT_ADDR + 0x8780000100UL)
+
+#define GRU_CACHE_CNFG (IDENT_ADDR + 0x8780000200UL)
+#define GRU_SCR (IDENT_ADDR + 0x8780000300UL)
+#define GRU_LED (IDENT_ADDR + 0x8780000800UL)
+#define GRU_RESET (IDENT_ADDR + 0x8780000900UL)
+
+#define ALCOR_GRU_INT_REQ_BITS 0x800fffffUL
+#define XLT_GRU_INT_REQ_BITS 0x80003fffUL
+#define GRU_INT_REQ_BITS (alpha_mv.sys.cia.gru_int_req_bits+0)
+
+/*
+ * PYXIS interrupt control registers
+ */
+#define PYXIS_INT_REQ (IDENT_ADDR + 0x87A0000000UL)
+#define PYXIS_INT_MASK (IDENT_ADDR + 0x87A0000040UL)
+#define PYXIS_INT_HILO (IDENT_ADDR + 0x87A00000C0UL)
+#define PYXIS_INT_ROUTE (IDENT_ADDR + 0x87A0000140UL)
+#define PYXIS_GPO (IDENT_ADDR + 0x87A0000180UL)
+#define PYXIS_INT_CNFG (IDENT_ADDR + 0x87A00001C0UL)
+#define PYXIS_RT_COUNT (IDENT_ADDR + 0x87A0000200UL)
+#define PYXIS_INT_TIME (IDENT_ADDR + 0x87A0000240UL)
+#define PYXIS_IIC_CTRL (IDENT_ADDR + 0x87A00002C0UL)
+#define PYXIS_RESET (IDENT_ADDR + 0x8780000900UL)
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses. */
+#define PYXIS_DAC_OFFSET (1UL << 40)
+
+/*
+ * Data structure for handling CIA machine checks.
+ */
+
+/* System-specific info. */
+struct el_CIA_sysdata_mcheck {
+ unsigned long cpu_err0;
+ unsigned long cpu_err1;
+ unsigned long cia_err;
+ unsigned long cia_stat;
+ unsigned long err_mask;
+ unsigned long cia_syn;
+ unsigned long mem_err0;
+ unsigned long mem_err1;
+ unsigned long pci_err0;
+ unsigned long pci_err1;
+ unsigned long pci_err2;
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+/* Do not touch, this should *NOT* be static inline */
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * CIA (the 2117x PCI/memory support chipset for the EV5 (21164)
+ * series of processors uses a sparse address mapping scheme to
+ * get at PCI memory and I/O.
+ */
+
+/*
+ * Memory functions. 64-bit and 32-bit accesses are done through
+ * dense memory space, everything else through sparse space.
+ *
+ * For reading and writing 8 and 16 bit quantities we need to
+ * go through one of the three sparse address mapping regions
+ * and use the HAE_MEM CSR to provide some bits of the address.
+ * The following few routines use only sparse address region 1
+ * which gives 1Gbyte of accessible space which relates exactly
+ * to the amount of PCI memory mapping *into* system address space.
+ * See p 6-17 of the specification but it looks something like this:
+ *
+ * 21164 Address:
+ *
+ * 3 2 1
+ * 9876543210987654321098765432109876543210
+ * 1ZZZZ0.PCI.QW.Address............BBLL
+ *
+ * ZZ = SBZ
+ * BB = Byte offset
+ * LL = Transfer length
+ *
+ * PCI Address:
+ *
+ * 3 2 1
+ * 10987654321098765432109876543210
+ * HHH....PCI.QW.Address........ 00
+ *
+ * HHH = 31:29 HAE_MEM CSR
+ *
+ */
+
+#define vip volatile int __force *
+#define vuip volatile unsigned int __force *
+#define vulp volatile unsigned long __force *
+
+__EXTERN_INLINE u8 cia_ioread8(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long result, base_and_type;
+
+ if (addr >= CIA_DENSE_MEM)
+ base_and_type = CIA_SPARSE_MEM + 0x00;
+ else
+ base_and_type = CIA_IO + 0x00;
+
+ /* We can use CIA_MEM_R1_MASK for io ports too, since it is large
+ enough to cover all io ports, and smaller than CIA_IO. */
+ addr &= CIA_MEM_R1_MASK;
+ result = *(vip) ((addr << 5) + base_and_type);
+ return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void cia_iowrite8(u8 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long w, base_and_type;
+
+ if (addr >= CIA_DENSE_MEM)
+ base_and_type = CIA_SPARSE_MEM + 0x00;
+ else
+ base_and_type = CIA_IO + 0x00;
+
+ addr &= CIA_MEM_R1_MASK;
+ w = __kernel_insbl(b, addr & 3);
+ *(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u16 cia_ioread16(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long result, base_and_type;
+
+ if (addr >= CIA_DENSE_MEM)
+ base_and_type = CIA_SPARSE_MEM + 0x08;
+ else
+ base_and_type = CIA_IO + 0x08;
+
+ addr &= CIA_MEM_R1_MASK;
+ result = *(vip) ((addr << 5) + base_and_type);
+ return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void cia_iowrite16(u16 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long w, base_and_type;
+
+ if (addr >= CIA_DENSE_MEM)
+ base_and_type = CIA_SPARSE_MEM + 0x08;
+ else
+ base_and_type = CIA_IO + 0x08;
+
+ addr &= CIA_MEM_R1_MASK;
+ w = __kernel_inswl(b, addr & 3);
+ *(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u32 cia_ioread32(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < CIA_DENSE_MEM)
+ addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+ return *(vuip)addr;
+}
+
+__EXTERN_INLINE void cia_iowrite32(u32 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < CIA_DENSE_MEM)
+ addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+ *(vuip)addr = b;
+}
+
+__EXTERN_INLINE u64 cia_ioread64(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < CIA_DENSE_MEM)
+ addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+ return *(vulp)addr;
+}
+
+__EXTERN_INLINE void cia_iowrite64(u64 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < CIA_DENSE_MEM)
+ addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+ *(vulp)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *cia_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)(addr + CIA_IO);
+}
+
+__EXTERN_INLINE void __iomem *cia_ioremap(unsigned long addr,
+ unsigned long size)
+{
+ return (void __iomem *)(addr + CIA_DENSE_MEM);
+}
+
+__EXTERN_INLINE int cia_is_ioaddr(unsigned long addr)
+{
+ return addr >= IDENT_ADDR + 0x8000000000UL;
+}
+
+__EXTERN_INLINE int cia_is_mmio(const volatile void __iomem *addr)
+{
+ return (unsigned long)addr >= CIA_DENSE_MEM;
+}
+
+__EXTERN_INLINE void __iomem *cia_bwx_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)(addr + CIA_BW_IO);
+}
+
+__EXTERN_INLINE void __iomem *cia_bwx_ioremap(unsigned long addr,
+ unsigned long size)
+{
+ return (void __iomem *)(addr + CIA_BW_MEM);
+}
+
+__EXTERN_INLINE int cia_bwx_is_ioaddr(unsigned long addr)
+{
+ return addr >= IDENT_ADDR + 0x8000000000UL;
+}
+
+__EXTERN_INLINE int cia_bwx_is_mmio(const volatile void __iomem *addr)
+{
+ return (unsigned long)addr < CIA_BW_IO;
+}
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX cia
+#define cia_trivial_rw_bw 2
+#define cia_trivial_rw_lq 1
+#define cia_trivial_io_bw 0
+#define cia_trivial_io_lq 0
+#define cia_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#undef __IO_PREFIX
+#define __IO_PREFIX cia_bwx
+#define cia_bwx_trivial_rw_bw 1
+#define cia_bwx_trivial_rw_lq 1
+#define cia_bwx_trivial_io_bw 1
+#define cia_bwx_trivial_io_lq 1
+#define cia_bwx_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#undef __IO_PREFIX
+#ifdef CONFIG_ALPHA_PYXIS
+#define __IO_PREFIX cia_bwx
+#else
+#define __IO_PREFIX cia
+#endif
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_CIA__H__ */
diff --git a/arch/alpha/include/asm/core_irongate.h b/arch/alpha/include/asm/core_irongate.h
new file mode 100644
index 0000000000..1c8906bf76
--- /dev/null
+++ b/arch/alpha/include/asm/core_irongate.h
@@ -0,0 +1,233 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_IRONGATE__H__
+#define __ALPHA_IRONGATE__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * IRONGATE is the internal name for the AMD-751 K7 core logic chipset
+ * which provides memory controller and PCI access for NAUTILUS-based
+ * EV6 (21264) systems.
+ *
+ * This file is based on:
+ *
+ * IronGate management library, (c) 1999 Alpha Processor, Inc.
+ * Copyright (C) 1999 Alpha Processor, Inc.,
+ * (David Daniel, Stig Telfer, Soohoon Lee)
+ */
+
+/*
+ * The 21264 supports, and internally recognizes, a 44-bit physical
+ * address space that is divided equally between memory address space
+ * and I/O address space. Memory address space resides in the lower
+ * half of the physical address space (PA[43]=0) and I/O address space
+ * resides in the upper half of the physical address space (PA[43]=1).
+ */
+
+/*
+ * Irongate CSR map. Some of the CSRs are 8 or 16 bits, but all access
+ * through the routines given is 32-bit.
+ *
+ * The first 0x40 bytes are standard as per the PCI spec.
+ */
+
+typedef volatile __u32 igcsr32;
+
+typedef struct {
+ igcsr32 dev_vendor; /* 0x00 - device ID, vendor ID */
+ igcsr32 stat_cmd; /* 0x04 - status, command */
+ igcsr32 class; /* 0x08 - class code, rev ID */
+ igcsr32 latency; /* 0x0C - header type, PCI latency */
+ igcsr32 bar0; /* 0x10 - BAR0 - AGP */
+ igcsr32 bar1; /* 0x14 - BAR1 - GART */
+ igcsr32 bar2; /* 0x18 - Power Management reg block */
+
+ igcsr32 rsrvd0[6]; /* 0x1C-0x33 reserved */
+
+ igcsr32 capptr; /* 0x34 - Capabilities pointer */
+
+ igcsr32 rsrvd1[2]; /* 0x38-0x3F reserved */
+
+ igcsr32 bacsr10; /* 0x40 - base address chip selects */
+ igcsr32 bacsr32; /* 0x44 - base address chip selects */
+ igcsr32 bacsr54_eccms761; /* 0x48 - 751: base addr. chip selects
+ 761: ECC, mode/status */
+
+ igcsr32 rsrvd2[1]; /* 0x4C-0x4F reserved */
+
+ igcsr32 drammap; /* 0x50 - address mapping control */
+ igcsr32 dramtm; /* 0x54 - timing, driver strength */
+ igcsr32 dramms; /* 0x58 - DRAM mode/status */
+
+ igcsr32 rsrvd3[1]; /* 0x5C-0x5F reserved */
+
+ igcsr32 biu0; /* 0x60 - bus interface unit */
+ igcsr32 biusip; /* 0x64 - Serial initialisation pkt */
+
+ igcsr32 rsrvd4[2]; /* 0x68-0x6F reserved */
+
+ igcsr32 mro; /* 0x70 - memory request optimiser */
+
+ igcsr32 rsrvd5[3]; /* 0x74-0x7F reserved */
+
+ igcsr32 whami; /* 0x80 - who am I */
+ igcsr32 pciarb; /* 0x84 - PCI arbitration control */
+ igcsr32 pcicfg; /* 0x88 - PCI config status */
+
+ igcsr32 rsrvd6[4]; /* 0x8C-0x9B reserved */
+
+ igcsr32 pci_mem; /* 0x9C - PCI top of memory,
+ 761 only */
+
+ /* AGP (bus 1) control registers */
+ igcsr32 agpcap; /* 0xA0 - AGP Capability Identifier */
+ igcsr32 agpstat; /* 0xA4 - AGP status register */
+ igcsr32 agpcmd; /* 0xA8 - AGP control register */
+ igcsr32 agpva; /* 0xAC - AGP Virtual Address Space */
+ igcsr32 agpmode; /* 0xB0 - AGP/GART mode control */
+} Irongate0;
+
+
+typedef struct {
+
+ igcsr32 dev_vendor; /* 0x00 - Device and Vendor IDs */
+ igcsr32 stat_cmd; /* 0x04 - Status and Command regs */
+ igcsr32 class; /* 0x08 - subclass, baseclass etc */
+ igcsr32 htype; /* 0x0C - header type (at 0x0E) */
+ igcsr32 rsrvd0[2]; /* 0x10-0x17 reserved */
+ igcsr32 busnos; /* 0x18 - Primary, secondary bus nos */
+ igcsr32 io_baselim_regs; /* 0x1C - IO base, IO lim, AGP status */
+ igcsr32 mem_baselim; /* 0x20 - memory base, memory lim */
+ igcsr32 pfmem_baselim; /* 0x24 - prefetchable base, lim */
+ igcsr32 rsrvd1[2]; /* 0x28-0x2F reserved */
+ igcsr32 io_baselim; /* 0x30 - IO base, IO limit */
+ igcsr32 rsrvd2[2]; /* 0x34-0x3B - reserved */
+ igcsr32 interrupt; /* 0x3C - interrupt, PCI bridge ctrl */
+
+} Irongate1;
+
+extern igcsr32 *IronECC;
+
+/*
+ * Memory spaces:
+ */
+
+/* Irongate is consistent with a subset of the Tsunami memory map */
+#ifdef USE_48_BIT_KSEG
+#define IRONGATE_BIAS 0x80000000000UL
+#else
+#define IRONGATE_BIAS 0x10000000000UL
+#endif
+
+
+#define IRONGATE_MEM (IDENT_ADDR | IRONGATE_BIAS | 0x000000000UL)
+#define IRONGATE_IACK_SC (IDENT_ADDR | IRONGATE_BIAS | 0x1F8000000UL)
+#define IRONGATE_IO (IDENT_ADDR | IRONGATE_BIAS | 0x1FC000000UL)
+#define IRONGATE_CONF (IDENT_ADDR | IRONGATE_BIAS | 0x1FE000000UL)
+
+/*
+ * PCI Configuration space accesses are formed like so:
+ *
+ * 0x1FE << 24 | : 2 2 2 2 1 1 1 1 : 1 1 1 1 1 1 0 0 : 0 0 0 0 0 0 0 0 :
+ * : 3 2 1 0 9 8 7 6 : 5 4 3 2 1 0 9 8 : 7 6 5 4 3 2 1 0 :
+ * ---bus numer--- -device-- -fun- ---register----
+ */
+
+#define IGCSR(dev,fun,reg) ( IRONGATE_CONF | \
+ ((dev)<<11) | \
+ ((fun)<<8) | \
+ (reg) )
+
+#define IRONGATE0 ((Irongate0 *) IGCSR(0, 0, 0))
+#define IRONGATE1 ((Irongate1 *) IGCSR(1, 0, 0))
+
+/*
+ * Data structure for handling IRONGATE machine checks:
+ * This is the standard OSF logout frame
+ */
+
+#define SCB_Q_SYSERR 0x620 /* OSF definitions */
+#define SCB_Q_PROCERR 0x630
+#define SCB_Q_SYSMCHK 0x660
+#define SCB_Q_PROCMCHK 0x670
+
+struct el_IRONGATE_sysdata_mcheck {
+ __u32 FrameSize; /* Bytes, including this field */
+ __u32 FrameFlags; /* <31> = Retry, <30> = Second Error */
+ __u32 CpuOffset; /* Offset to CPU-specific into */
+ __u32 SystemOffset; /* Offset to system-specific info */
+ __u32 MCHK_Code;
+ __u32 MCHK_Frame_Rev;
+ __u64 I_STAT;
+ __u64 DC_STAT;
+ __u64 C_ADDR;
+ __u64 DC1_SYNDROME;
+ __u64 DC0_SYNDROME;
+ __u64 C_STAT;
+ __u64 C_STS;
+ __u64 RESERVED0;
+ __u64 EXC_ADDR;
+ __u64 IER_CM;
+ __u64 ISUM;
+ __u64 MM_STAT;
+ __u64 PAL_BASE;
+ __u64 I_CTL;
+ __u64 PCTX;
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * IRONGATE (AMD-751) PCI/memory support chip for the EV6 (21264) and
+ * K7 can only use linear accesses to get at PCI memory and I/O spaces.
+ */
+
+/*
+ * Memory functions. All accesses are done through linear space.
+ */
+
+__EXTERN_INLINE void __iomem *irongate_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)(addr + IRONGATE_IO);
+}
+
+extern void __iomem *irongate_ioremap(unsigned long addr, unsigned long size);
+extern void irongate_iounmap(volatile void __iomem *addr);
+
+__EXTERN_INLINE int irongate_is_ioaddr(unsigned long addr)
+{
+ return addr >= IRONGATE_MEM;
+}
+
+__EXTERN_INLINE int irongate_is_mmio(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr;
+ return addr < IRONGATE_IO || addr >= IRONGATE_CONF;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX irongate
+#define irongate_trivial_rw_bw 1
+#define irongate_trivial_rw_lq 1
+#define irongate_trivial_io_bw 1
+#define irongate_trivial_io_lq 1
+#define irongate_trivial_iounmap 0
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_IRONGATE__H__ */
diff --git a/arch/alpha/include/asm/core_lca.h b/arch/alpha/include/asm/core_lca.h
new file mode 100644
index 0000000000..d8c3e72ef8
--- /dev/null
+++ b/arch/alpha/include/asm/core_lca.h
@@ -0,0 +1,378 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_LCA__H__
+#define __ALPHA_LCA__H__
+
+#include <asm/compiler.h>
+#include <asm/mce.h>
+
+/*
+ * Low Cost Alpha (LCA) definitions (these apply to 21066 and 21068,
+ * for example).
+ *
+ * This file is based on:
+ *
+ * DECchip 21066 and DECchip 21068 Alpha AXP Microprocessors
+ * Hardware Reference Manual; Digital Equipment Corp.; May 1994;
+ * Maynard, MA; Order Number: EC-N2681-71.
+ */
+
+/*
+ * NOTE: The LCA uses a Host Address Extension (HAE) register to access
+ * PCI addresses that are beyond the first 27 bits of address
+ * space. Updating the HAE requires an external cycle (and
+ * a memory barrier), which tends to be slow. Instead of updating
+ * it on each sparse memory access, we keep the current HAE value
+ * cached in variable cache_hae. Only if the cached HAE differs
+ * from the desired HAE value do we actually updated HAE register.
+ * The HAE register is preserved by the interrupt handler entry/exit
+ * code, so this scheme works even in the presence of interrupts.
+ *
+ * Dense memory space doesn't require the HAE, but is restricted to
+ * aligned 32 and 64 bit accesses. Special Cycle and Interrupt
+ * Acknowledge cycles may also require the use of the HAE. The LCA
+ * limits I/O address space to the bottom 24 bits of address space,
+ * but this easily covers the 16 bit ISA I/O address space.
+ */
+
+/*
+ * NOTE 2! The memory operations do not set any memory barriers, as
+ * it's not needed for cases like a frame buffer that is essentially
+ * memory-like. You need to do them by hand if the operations depend
+ * on ordering.
+ *
+ * Similarly, the port I/O operations do a "mb" only after a write
+ * operation: if an mb is needed before (as in the case of doing
+ * memory mapped I/O first, and then a port I/O operation to the same
+ * device), it needs to be done by hand.
+ *
+ * After the above has bitten me 100 times, I'll give up and just do
+ * the mb all the time, but right now I'm hoping this will work out.
+ * Avoiding mb's may potentially be a noticeable speed improvement,
+ * but I can't honestly say I've tested it.
+ *
+ * Handling interrupts that need to do mb's to synchronize to
+ * non-interrupts is another fun race area. Don't do it (because if
+ * you do, I'll have to do *everything* with interrupts disabled,
+ * ugh).
+ */
+
+/*
+ * Memory Controller registers:
+ */
+#define LCA_MEM_BCR0 (IDENT_ADDR + 0x120000000UL)
+#define LCA_MEM_BCR1 (IDENT_ADDR + 0x120000008UL)
+#define LCA_MEM_BCR2 (IDENT_ADDR + 0x120000010UL)
+#define LCA_MEM_BCR3 (IDENT_ADDR + 0x120000018UL)
+#define LCA_MEM_BMR0 (IDENT_ADDR + 0x120000020UL)
+#define LCA_MEM_BMR1 (IDENT_ADDR + 0x120000028UL)
+#define LCA_MEM_BMR2 (IDENT_ADDR + 0x120000030UL)
+#define LCA_MEM_BMR3 (IDENT_ADDR + 0x120000038UL)
+#define LCA_MEM_BTR0 (IDENT_ADDR + 0x120000040UL)
+#define LCA_MEM_BTR1 (IDENT_ADDR + 0x120000048UL)
+#define LCA_MEM_BTR2 (IDENT_ADDR + 0x120000050UL)
+#define LCA_MEM_BTR3 (IDENT_ADDR + 0x120000058UL)
+#define LCA_MEM_GTR (IDENT_ADDR + 0x120000060UL)
+#define LCA_MEM_ESR (IDENT_ADDR + 0x120000068UL)
+#define LCA_MEM_EAR (IDENT_ADDR + 0x120000070UL)
+#define LCA_MEM_CAR (IDENT_ADDR + 0x120000078UL)
+#define LCA_MEM_VGR (IDENT_ADDR + 0x120000080UL)
+#define LCA_MEM_PLM (IDENT_ADDR + 0x120000088UL)
+#define LCA_MEM_FOR (IDENT_ADDR + 0x120000090UL)
+
+/*
+ * I/O Controller registers:
+ */
+#define LCA_IOC_HAE (IDENT_ADDR + 0x180000000UL)
+#define LCA_IOC_CONF (IDENT_ADDR + 0x180000020UL)
+#define LCA_IOC_STAT0 (IDENT_ADDR + 0x180000040UL)
+#define LCA_IOC_STAT1 (IDENT_ADDR + 0x180000060UL)
+#define LCA_IOC_TBIA (IDENT_ADDR + 0x180000080UL)
+#define LCA_IOC_TB_ENA (IDENT_ADDR + 0x1800000a0UL)
+#define LCA_IOC_SFT_RST (IDENT_ADDR + 0x1800000c0UL)
+#define LCA_IOC_PAR_DIS (IDENT_ADDR + 0x1800000e0UL)
+#define LCA_IOC_W_BASE0 (IDENT_ADDR + 0x180000100UL)
+#define LCA_IOC_W_BASE1 (IDENT_ADDR + 0x180000120UL)
+#define LCA_IOC_W_MASK0 (IDENT_ADDR + 0x180000140UL)
+#define LCA_IOC_W_MASK1 (IDENT_ADDR + 0x180000160UL)
+#define LCA_IOC_T_BASE0 (IDENT_ADDR + 0x180000180UL)
+#define LCA_IOC_T_BASE1 (IDENT_ADDR + 0x1800001a0UL)
+#define LCA_IOC_TB_TAG0 (IDENT_ADDR + 0x188000000UL)
+#define LCA_IOC_TB_TAG1 (IDENT_ADDR + 0x188000020UL)
+#define LCA_IOC_TB_TAG2 (IDENT_ADDR + 0x188000040UL)
+#define LCA_IOC_TB_TAG3 (IDENT_ADDR + 0x188000060UL)
+#define LCA_IOC_TB_TAG4 (IDENT_ADDR + 0x188000070UL)
+#define LCA_IOC_TB_TAG5 (IDENT_ADDR + 0x1880000a0UL)
+#define LCA_IOC_TB_TAG6 (IDENT_ADDR + 0x1880000c0UL)
+#define LCA_IOC_TB_TAG7 (IDENT_ADDR + 0x1880000e0UL)
+
+/*
+ * Memory spaces:
+ */
+#define LCA_IACK_SC (IDENT_ADDR + 0x1a0000000UL)
+#define LCA_CONF (IDENT_ADDR + 0x1e0000000UL)
+#define LCA_IO (IDENT_ADDR + 0x1c0000000UL)
+#define LCA_SPARSE_MEM (IDENT_ADDR + 0x200000000UL)
+#define LCA_DENSE_MEM (IDENT_ADDR + 0x300000000UL)
+
+/*
+ * Bit definitions for I/O Controller status register 0:
+ */
+#define LCA_IOC_STAT0_CMD 0xf
+#define LCA_IOC_STAT0_ERR (1<<4)
+#define LCA_IOC_STAT0_LOST (1<<5)
+#define LCA_IOC_STAT0_THIT (1<<6)
+#define LCA_IOC_STAT0_TREF (1<<7)
+#define LCA_IOC_STAT0_CODE_SHIFT 8
+#define LCA_IOC_STAT0_CODE_MASK 0x7
+#define LCA_IOC_STAT0_P_NBR_SHIFT 13
+#define LCA_IOC_STAT0_P_NBR_MASK 0x7ffff
+
+#define LCA_HAE_ADDRESS LCA_IOC_HAE
+
+/* LCA PMR Power Management register defines */
+#define LCA_PMR_ADDR (IDENT_ADDR + 0x120000098UL)
+#define LCA_PMR_PDIV 0x7 /* Primary clock divisor */
+#define LCA_PMR_ODIV 0x38 /* Override clock divisor */
+#define LCA_PMR_INTO 0x40 /* Interrupt override */
+#define LCA_PMR_DMAO 0x80 /* DMA override */
+#define LCA_PMR_OCCEB 0xffff0000L /* Override cycle counter - even bits */
+#define LCA_PMR_OCCOB 0xffff000000000000L /* Override cycle counter - even bits */
+#define LCA_PMR_PRIMARY_MASK 0xfffffffffffffff8L
+
+/* LCA PMR Macros */
+
+#define LCA_READ_PMR (*(volatile unsigned long *)LCA_PMR_ADDR)
+#define LCA_WRITE_PMR(d) (*((volatile unsigned long *)LCA_PMR_ADDR) = (d))
+
+#define LCA_GET_PRIMARY(r) ((r) & LCA_PMR_PDIV)
+#define LCA_GET_OVERRIDE(r) (((r) >> 3) & LCA_PMR_PDIV)
+#define LCA_SET_PRIMARY_CLOCK(r, c) ((r) = (((r) & LCA_PMR_PRIMARY_MASK)|(c)))
+
+/* LCA PMR Divisor values */
+#define LCA_PMR_DIV_1 0x0
+#define LCA_PMR_DIV_1_5 0x1
+#define LCA_PMR_DIV_2 0x2
+#define LCA_PMR_DIV_4 0x3
+#define LCA_PMR_DIV_8 0x4
+#define LCA_PMR_DIV_16 0x5
+#define LCA_PMR_DIV_MIN DIV_1
+#define LCA_PMR_DIV_MAX DIV_16
+
+
+/*
+ * Data structure for handling LCA machine checks. Correctable errors
+ * result in a short logout frame, uncorrectable ones in a long one.
+ */
+struct el_lca_mcheck_short {
+ struct el_common h; /* common logout header */
+ unsigned long esr; /* error-status register */
+ unsigned long ear; /* error-address register */
+ unsigned long dc_stat; /* dcache status register */
+ unsigned long ioc_stat0; /* I/O controller status register 0 */
+ unsigned long ioc_stat1; /* I/O controller status register 1 */
+};
+
+struct el_lca_mcheck_long {
+ struct el_common h; /* common logout header */
+ unsigned long pt[31]; /* PAL temps */
+ unsigned long exc_addr; /* exception address */
+ unsigned long pad1[3];
+ unsigned long pal_base; /* PALcode base address */
+ unsigned long hier; /* hw interrupt enable */
+ unsigned long hirr; /* hw interrupt request */
+ unsigned long mm_csr; /* MMU control & status */
+ unsigned long dc_stat; /* data cache status */
+ unsigned long dc_addr; /* data cache addr register */
+ unsigned long abox_ctl; /* address box control register */
+ unsigned long esr; /* error status register */
+ unsigned long ear; /* error address register */
+ unsigned long car; /* cache control register */
+ unsigned long ioc_stat0; /* I/O controller status register 0 */
+ unsigned long ioc_stat1; /* I/O controller status register 1 */
+ unsigned long va; /* virtual address register */
+};
+
+union el_lca {
+ struct el_common * c;
+ struct el_lca_mcheck_long * l;
+ struct el_lca_mcheck_short * s;
+};
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * Unlike Jensen, the Noname machines have no concept of local
+ * I/O---everything goes over the PCI bus.
+ *
+ * There is plenty room for optimization here. In particular,
+ * the Alpha's insb/insw/extb/extw should be useful in moving
+ * data to/from the right byte-lanes.
+ */
+
+#define vip volatile int __force *
+#define vuip volatile unsigned int __force *
+#define vulp volatile unsigned long __force *
+
+#define LCA_SET_HAE \
+ do { \
+ if (addr >= (1UL << 24)) { \
+ unsigned long msb = addr & 0xf8000000; \
+ addr -= msb; \
+ set_hae(msb); \
+ } \
+ } while (0)
+
+
+__EXTERN_INLINE u8 lca_ioread8(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long result, base_and_type;
+
+ if (addr >= LCA_DENSE_MEM) {
+ addr -= LCA_DENSE_MEM;
+ LCA_SET_HAE;
+ base_and_type = LCA_SPARSE_MEM + 0x00;
+ } else {
+ addr -= LCA_IO;
+ base_and_type = LCA_IO + 0x00;
+ }
+
+ result = *(vip) ((addr << 5) + base_and_type);
+ return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void lca_iowrite8(u8 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long w, base_and_type;
+
+ if (addr >= LCA_DENSE_MEM) {
+ addr -= LCA_DENSE_MEM;
+ LCA_SET_HAE;
+ base_and_type = LCA_SPARSE_MEM + 0x00;
+ } else {
+ addr -= LCA_IO;
+ base_and_type = LCA_IO + 0x00;
+ }
+
+ w = __kernel_insbl(b, addr & 3);
+ *(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u16 lca_ioread16(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long result, base_and_type;
+
+ if (addr >= LCA_DENSE_MEM) {
+ addr -= LCA_DENSE_MEM;
+ LCA_SET_HAE;
+ base_and_type = LCA_SPARSE_MEM + 0x08;
+ } else {
+ addr -= LCA_IO;
+ base_and_type = LCA_IO + 0x08;
+ }
+
+ result = *(vip) ((addr << 5) + base_and_type);
+ return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void lca_iowrite16(u16 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long w, base_and_type;
+
+ if (addr >= LCA_DENSE_MEM) {
+ addr -= LCA_DENSE_MEM;
+ LCA_SET_HAE;
+ base_and_type = LCA_SPARSE_MEM + 0x08;
+ } else {
+ addr -= LCA_IO;
+ base_and_type = LCA_IO + 0x08;
+ }
+
+ w = __kernel_inswl(b, addr & 3);
+ *(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u32 lca_ioread32(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < LCA_DENSE_MEM)
+ addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+ return *(vuip)addr;
+}
+
+__EXTERN_INLINE void lca_iowrite32(u32 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < LCA_DENSE_MEM)
+ addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+ *(vuip)addr = b;
+}
+
+__EXTERN_INLINE u64 lca_ioread64(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < LCA_DENSE_MEM)
+ addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+ return *(vulp)addr;
+}
+
+__EXTERN_INLINE void lca_iowrite64(u64 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ if (addr < LCA_DENSE_MEM)
+ addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+ *(vulp)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *lca_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)(addr + LCA_IO);
+}
+
+__EXTERN_INLINE void __iomem *lca_ioremap(unsigned long addr,
+ unsigned long size)
+{
+ return (void __iomem *)(addr + LCA_DENSE_MEM);
+}
+
+__EXTERN_INLINE int lca_is_ioaddr(unsigned long addr)
+{
+ return addr >= IDENT_ADDR + 0x120000000UL;
+}
+
+__EXTERN_INLINE int lca_is_mmio(const volatile void __iomem *addr)
+{
+ return (unsigned long)addr >= LCA_DENSE_MEM;
+}
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX lca
+#define lca_trivial_rw_bw 2
+#define lca_trivial_rw_lq 1
+#define lca_trivial_io_bw 0
+#define lca_trivial_io_lq 0
+#define lca_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_LCA__H__ */
diff --git a/arch/alpha/include/asm/core_marvel.h b/arch/alpha/include/asm/core_marvel.h
new file mode 100644
index 0000000000..d99f3a82e0
--- /dev/null
+++ b/arch/alpha/include/asm/core_marvel.h
@@ -0,0 +1,378 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Marvel systems use the IO7 I/O chip provides PCI/PCIX/AGP access
+ *
+ * This file is based on:
+ *
+ * Marvel / EV7 System Programmer's Manual
+ * Revision 1.00
+ * 14 May 2001
+ */
+
+#ifndef __ALPHA_MARVEL__H__
+#define __ALPHA_MARVEL__H__
+
+#include <linux/types.h>
+#include <linux/spinlock.h>
+
+#include <asm/compiler.h>
+
+#define MARVEL_MAX_PIDS 32 /* as long as we rely on 43-bit superpage */
+#define MARVEL_IRQ_VEC_PE_SHIFT (10)
+#define MARVEL_IRQ_VEC_IRQ_MASK ((1 << MARVEL_IRQ_VEC_PE_SHIFT) - 1)
+#define MARVEL_NR_IRQS \
+ (16 + (MARVEL_MAX_PIDS * (1 << MARVEL_IRQ_VEC_PE_SHIFT)))
+
+/*
+ * EV7 RBOX Registers
+ */
+typedef struct {
+ volatile unsigned long csr __attribute__((aligned(16)));
+} ev7_csr;
+
+typedef struct {
+ ev7_csr RBOX_CFG; /* 0x0000 */
+ ev7_csr RBOX_NSVC;
+ ev7_csr RBOX_EWVC;
+ ev7_csr RBOX_WHAMI;
+ ev7_csr RBOX_TCTL; /* 0x0040 */
+ ev7_csr RBOX_INT;
+ ev7_csr RBOX_IMASK;
+ ev7_csr RBOX_IREQ;
+ ev7_csr RBOX_INTQ; /* 0x0080 */
+ ev7_csr RBOX_INTA;
+ ev7_csr RBOX_IT;
+ ev7_csr RBOX_SCRATCH1;
+ ev7_csr RBOX_SCRATCH2; /* 0x00c0 */
+ ev7_csr RBOX_L_ERR;
+} ev7_csrs;
+
+/*
+ * EV7 CSR addressing macros
+ */
+#define EV7_MASK40(addr) ((addr) & ((1UL << 41) - 1))
+#define EV7_KERN_ADDR(addr) ((void *)(IDENT_ADDR | EV7_MASK40(addr)))
+
+#define EV7_PE_MASK 0x1ffUL /* 9 bits ( 256 + mem/io ) */
+#define EV7_IPE(pe) ((~((long)(pe)) & EV7_PE_MASK) << 35)
+
+#define EV7_CSR_PHYS(pe, off) (EV7_IPE(pe) | (0x7FFCUL << 20) | (off))
+#define EV7_CSRS_PHYS(pe) (EV7_CSR_PHYS(pe, 0UL))
+
+#define EV7_CSR_KERN(pe, off) (EV7_KERN_ADDR(EV7_CSR_PHYS(pe, off)))
+#define EV7_CSRS_KERN(pe) (EV7_KERN_ADDR(EV7_CSRS_PHYS(pe)))
+
+#define EV7_CSR_OFFSET(name) ((unsigned long)&((ev7_csrs *)NULL)->name.csr)
+
+/*
+ * IO7 registers
+ */
+typedef struct {
+ volatile unsigned long csr __attribute__((aligned(64)));
+} io7_csr;
+
+typedef struct {
+ /* I/O Port Control Registers */
+ io7_csr POx_CTRL; /* 0x0000 */
+ io7_csr POx_CACHE_CTL;
+ io7_csr POx_TIMER;
+ io7_csr POx_IO_ADR_EXT;
+ io7_csr POx_MEM_ADR_EXT; /* 0x0100 */
+ io7_csr POx_XCAL_CTRL;
+ io7_csr rsvd1[2]; /* ?? spec doesn't show 0x180 */
+ io7_csr POx_DM_SOURCE; /* 0x0200 */
+ io7_csr POx_DM_DEST;
+ io7_csr POx_DM_SIZE;
+ io7_csr POx_DM_CTRL;
+ io7_csr rsvd2[4]; /* 0x0300 */
+
+ /* AGP Control Registers -- port 3 only */
+ io7_csr AGP_CAP_ID; /* 0x0400 */
+ io7_csr AGP_STAT;
+ io7_csr AGP_CMD;
+ io7_csr rsvd3;
+
+ /* I/O Port Monitor Registers */
+ io7_csr POx_MONCTL; /* 0x0500 */
+ io7_csr POx_CTRA;
+ io7_csr POx_CTRB;
+ io7_csr POx_CTR56;
+ io7_csr POx_SCRATCH; /* 0x0600 */
+ io7_csr POx_XTRA_A;
+ io7_csr POx_XTRA_TS;
+ io7_csr POx_XTRA_Z;
+ io7_csr rsvd4; /* 0x0700 */
+ io7_csr POx_THRESHA;
+ io7_csr POx_THRESHB;
+ io7_csr rsvd5[33];
+
+ /* System Address Space Window Control Registers */
+
+ io7_csr POx_WBASE[4]; /* 0x1000 */
+ io7_csr POx_WMASK[4];
+ io7_csr POx_TBASE[4];
+ io7_csr POx_SG_TBIA;
+ io7_csr POx_MSI_WBASE;
+ io7_csr rsvd6[50];
+
+ /* I/O Port Error Registers */
+ io7_csr POx_ERR_SUM;
+ io7_csr POx_FIRST_ERR;
+ io7_csr POx_MSK_HEI;
+ io7_csr POx_TLB_ERR;
+ io7_csr POx_SPL_COMPLT;
+ io7_csr POx_TRANS_SUM;
+ io7_csr POx_FRC_PCI_ERR;
+ io7_csr POx_MULT_ERR;
+ io7_csr rsvd7[8];
+
+ /* I/O Port End of Interrupt Registers */
+ io7_csr EOI_DAT;
+ io7_csr rsvd8[7];
+ io7_csr POx_IACK_SPECIAL;
+ io7_csr rsvd9[103];
+} io7_ioport_csrs;
+
+typedef struct {
+ io7_csr IO_ASIC_REV; /* 0x30.0000 */
+ io7_csr IO_SYS_REV;
+ io7_csr SER_CHAIN3;
+ io7_csr PO7_RST1;
+ io7_csr PO7_RST2; /* 0x30.0100 */
+ io7_csr POx_RST[4];
+ io7_csr IO7_DWNH;
+ io7_csr IO7_MAF;
+ io7_csr IO7_MAF_TO;
+ io7_csr IO7_ACC_CLUMP; /* 0x30.0300 */
+ io7_csr IO7_PMASK;
+ io7_csr IO7_IOMASK;
+ io7_csr IO7_UPH;
+ io7_csr IO7_UPH_TO; /* 0x30.0400 */
+ io7_csr RBX_IREQ_OFF;
+ io7_csr RBX_INTA_OFF;
+ io7_csr INT_RTY;
+ io7_csr PO7_MONCTL; /* 0x30.0500 */
+ io7_csr PO7_CTRA;
+ io7_csr PO7_CTRB;
+ io7_csr PO7_CTR56;
+ io7_csr PO7_SCRATCH; /* 0x30.0600 */
+ io7_csr PO7_XTRA_A;
+ io7_csr PO7_XTRA_TS;
+ io7_csr PO7_XTRA_Z;
+ io7_csr PO7_PMASK; /* 0x30.0700 */
+ io7_csr PO7_THRESHA;
+ io7_csr PO7_THRESHB;
+ io7_csr rsvd1[97];
+ io7_csr PO7_ERROR_SUM; /* 0x30.2000 */
+ io7_csr PO7_BHOLE_MASK;
+ io7_csr PO7_HEI_MSK;
+ io7_csr PO7_CRD_MSK;
+ io7_csr PO7_UNCRR_SYM; /* 0x30.2100 */
+ io7_csr PO7_CRRCT_SYM;
+ io7_csr PO7_ERR_PKT[2];
+ io7_csr PO7_UGBGE_SYM; /* 0x30.2200 */
+ io7_csr rsbv2[887];
+ io7_csr PO7_LSI_CTL[128]; /* 0x31.0000 */
+ io7_csr rsvd3[123];
+ io7_csr HLT_CTL; /* 0x31.3ec0 */
+ io7_csr HPI_CTL; /* 0x31.3f00 */
+ io7_csr CRD_CTL;
+ io7_csr STV_CTL;
+ io7_csr HEI_CTL;
+ io7_csr PO7_MSI_CTL[16]; /* 0x31.4000 */
+ io7_csr rsvd4[240];
+
+ /*
+ * Interrupt Diagnostic / Test
+ */
+ struct {
+ io7_csr INT_PND;
+ io7_csr INT_CLR;
+ io7_csr INT_EOI;
+ io7_csr rsvd[29];
+ } INT_DIAG[4];
+ io7_csr rsvd5[125]; /* 0x31.a000 */
+ io7_csr MISC_PND; /* 0x31.b800 */
+ io7_csr rsvd6[31];
+ io7_csr MSI_PND[16]; /* 0x31.c000 */
+ io7_csr rsvd7[16];
+ io7_csr MSI_CLR[16]; /* 0x31.c800 */
+} io7_port7_csrs;
+
+/*
+ * IO7 DMA Window Base register (POx_WBASEx)
+ */
+#define wbase_m_ena 0x1
+#define wbase_m_sg 0x2
+#define wbase_m_dac 0x4
+#define wbase_m_addr 0xFFF00000
+union IO7_POx_WBASE {
+ struct {
+ unsigned ena : 1; /* <0> */
+ unsigned sg : 1; /* <1> */
+ unsigned dac : 1; /* <2> -- window 3 only */
+ unsigned rsvd1 : 17;
+ unsigned addr : 12; /* <31:20> */
+ unsigned rsvd2 : 32;
+ } bits;
+ unsigned as_long[2];
+ unsigned as_quad;
+};
+
+/*
+ * IO7 IID (Interrupt IDentifier) format
+ *
+ * For level-sensative interrupts, int_num is encoded as:
+ *
+ * bus/port slot/device INTx
+ * <7:5> <4:2> <1:0>
+ */
+union IO7_IID {
+ struct {
+ unsigned int_num : 9; /* <8:0> */
+ unsigned tpu_mask : 4; /* <12:9> rsvd */
+ unsigned msi : 1; /* 13 */
+ unsigned ipe : 10; /* <23:14> */
+ unsigned long rsvd : 40;
+ } bits;
+ unsigned int as_long[2];
+ unsigned long as_quad;
+};
+
+/*
+ * IO7 addressing macros
+ */
+#define IO7_KERN_ADDR(addr) (EV7_KERN_ADDR(addr))
+
+#define IO7_PORT_MASK 0x07UL /* 3 bits of port */
+
+#define IO7_IPE(pe) (EV7_IPE(pe))
+#define IO7_IPORT(port) ((~((long)(port)) & IO7_PORT_MASK) << 32)
+
+#define IO7_HOSE(pe, port) (IO7_IPE(pe) | IO7_IPORT(port))
+
+#define IO7_MEM_PHYS(pe, port) (IO7_HOSE(pe, port) | 0x00000000UL)
+#define IO7_CONF_PHYS(pe, port) (IO7_HOSE(pe, port) | 0xFE000000UL)
+#define IO7_IO_PHYS(pe, port) (IO7_HOSE(pe, port) | 0xFF000000UL)
+#define IO7_CSR_PHYS(pe, port, off) \
+ (IO7_HOSE(pe, port) | 0xFF800000UL | (off))
+#define IO7_CSRS_PHYS(pe, port) (IO7_CSR_PHYS(pe, port, 0UL))
+#define IO7_PORT7_CSRS_PHYS(pe) (IO7_CSR_PHYS(pe, 7, 0x300000UL))
+
+#define IO7_MEM_KERN(pe, port) (IO7_KERN_ADDR(IO7_MEM_PHYS(pe, port)))
+#define IO7_CONF_KERN(pe, port) (IO7_KERN_ADDR(IO7_CONF_PHYS(pe, port)))
+#define IO7_IO_KERN(pe, port) (IO7_KERN_ADDR(IO7_IO_PHYS(pe, port)))
+#define IO7_CSR_KERN(pe, port, off) (IO7_KERN_ADDR(IO7_CSR_PHYS(pe,port,off)))
+#define IO7_CSRS_KERN(pe, port) (IO7_KERN_ADDR(IO7_CSRS_PHYS(pe, port)))
+#define IO7_PORT7_CSRS_KERN(pe) (IO7_KERN_ADDR(IO7_PORT7_CSRS_PHYS(pe)))
+
+#define IO7_PLL_RNGA(pll) (((pll) >> 3) & 0x7)
+#define IO7_PLL_RNGB(pll) (((pll) >> 6) & 0x7)
+
+#define IO7_MEM_SPACE (2UL * 1024 * 1024 * 1024) /* 2GB MEM */
+#define IO7_IO_SPACE (8UL * 1024 * 1024) /* 8MB I/O */
+
+
+/*
+ * Offset between ram physical addresses and pci64 DAC addresses
+ */
+#define IO7_DAC_OFFSET (1UL << 49)
+
+/*
+ * This is needed to satisify the IO() macro used in initializing the machvec
+ */
+#define MARVEL_IACK_SC \
+ ((unsigned long) \
+ (&(((io7_ioport_csrs *)IO7_CSRS_KERN(0, 0))->POx_IACK_SPECIAL)))
+
+#ifdef __KERNEL__
+
+/*
+ * IO7 structs
+ */
+#define IO7_NUM_PORTS 4
+#define IO7_AGP_PORT 3
+
+struct io7_port {
+ struct io7 *io7;
+ struct pci_controller *hose;
+
+ int enabled;
+ unsigned int port;
+ io7_ioport_csrs *csrs;
+
+ unsigned long saved_wbase[4];
+ unsigned long saved_wmask[4];
+ unsigned long saved_tbase[4];
+};
+
+struct io7 {
+ struct io7 *next;
+
+ unsigned int pe;
+ io7_port7_csrs *csrs;
+ struct io7_port ports[IO7_NUM_PORTS];
+
+ raw_spinlock_t irq_lock;
+};
+
+#ifndef __EXTERN_INLINE
+# define __EXTERN_INLINE extern inline
+# define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions. All access through linear space.
+ */
+
+/*
+ * Memory functions. All accesses through linear space.
+ */
+
+#define vucp volatile unsigned char __force *
+#define vusp volatile unsigned short __force *
+
+extern u8 marvel_ioread8(const void __iomem *);
+extern void marvel_iowrite8(u8 b, void __iomem *);
+
+__EXTERN_INLINE u16 marvel_ioread16(const void __iomem *addr)
+{
+ return __kernel_ldwu(*(vusp)addr);
+}
+
+__EXTERN_INLINE void marvel_iowrite16(u16 b, void __iomem *addr)
+{
+ __kernel_stw(b, *(vusp)addr);
+}
+
+extern void __iomem *marvel_ioremap(unsigned long addr, unsigned long size);
+extern void marvel_iounmap(volatile void __iomem *addr);
+extern void __iomem *marvel_ioportmap (unsigned long addr);
+
+__EXTERN_INLINE int marvel_is_ioaddr(unsigned long addr)
+{
+ return (addr >> 40) & 1;
+}
+
+extern int marvel_is_mmio(const volatile void __iomem *);
+
+#undef vucp
+#undef vusp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX marvel
+#define marvel_trivial_rw_bw 1
+#define marvel_trivial_rw_lq 1
+#define marvel_trivial_io_bw 0
+#define marvel_trivial_io_lq 1
+#define marvel_trivial_iounmap 0
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+# undef __EXTERN_INLINE
+# undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_MARVEL__H__ */
diff --git a/arch/alpha/include/asm/core_mcpcia.h b/arch/alpha/include/asm/core_mcpcia.h
new file mode 100644
index 0000000000..ed2bf8ad40
--- /dev/null
+++ b/arch/alpha/include/asm/core_mcpcia.h
@@ -0,0 +1,404 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MCPCIA__H__
+#define __ALPHA_MCPCIA__H__
+
+/* Define to experiment with fitting everything into one 128MB HAE window.
+ One window per bus, that is. */
+#define MCPCIA_ONE_HAE_WINDOW 1
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+#include <asm/mce.h>
+
+/*
+ * MCPCIA is the internal name for a core logic chipset which provides
+ * PCI access for the RAWHIDE family of systems.
+ *
+ * This file is based on:
+ *
+ * RAWHIDE System Programmer's Manual
+ * 16-May-96
+ * Rev. 1.4
+ *
+ */
+
+/*------------------------------------------------------------------------**
+** **
+** I/O procedures **
+** **
+** inport[b|w|t|l], outport[b|w|t|l] 8:16:24:32 IO xfers **
+** inportbxt: 8 bits only **
+** inport: alias of inportw **
+** outport: alias of outportw **
+** **
+** inmem[b|w|t|l], outmem[b|w|t|l] 8:16:24:32 ISA memory xfers **
+** inmembxt: 8 bits only **
+** inmem: alias of inmemw **
+** outmem: alias of outmemw **
+** **
+**------------------------------------------------------------------------*/
+
+
+/* MCPCIA ADDRESS BIT DEFINITIONS
+ *
+ * 3333 3333 3322 2222 2222 1111 1111 11
+ * 9876 5432 1098 7654 3210 9876 5432 1098 7654 3210
+ * ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ * 1 000
+ * ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ * | |\|
+ * | Byte Enable --+ |
+ * | Transfer Length --+
+ * +-- IO space, not cached
+ *
+ * Byte Transfer
+ * Enable Length Transfer Byte Address
+ * adr<6:5> adr<4:3> Length Enable Adder
+ * ---------------------------------------------
+ * 00 00 Byte 1110 0x000
+ * 01 00 Byte 1101 0x020
+ * 10 00 Byte 1011 0x040
+ * 11 00 Byte 0111 0x060
+ *
+ * 00 01 Word 1100 0x008
+ * 01 01 Word 1001 0x028 <= Not supported in this code.
+ * 10 01 Word 0011 0x048
+ *
+ * 00 10 Tribyte 1000 0x010
+ * 01 10 Tribyte 0001 0x030
+ *
+ * 10 11 Longword 0000 0x058
+ *
+ * Note that byte enables are asserted low.
+ *
+ */
+
+#define MCPCIA_MAX_HOSES 4
+
+#define MCPCIA_MID(m) ((unsigned long)(m) << 33)
+
+/* Dodge has PCI0 and PCI1 at MID 4 and 5 respectively.
+ Durango adds PCI2 and PCI3 at MID 6 and 7 respectively. */
+#define MCPCIA_HOSE2MID(h) ((h) + 4)
+
+#define MCPCIA_MEM_MASK 0x07ffffff /* SPARSE Mem region mask is 27 bits */
+
+/*
+ * Memory spaces:
+ */
+#define MCPCIA_SPARSE(m) (IDENT_ADDR + 0xf000000000UL + MCPCIA_MID(m))
+#define MCPCIA_DENSE(m) (IDENT_ADDR + 0xf100000000UL + MCPCIA_MID(m))
+#define MCPCIA_IO(m) (IDENT_ADDR + 0xf180000000UL + MCPCIA_MID(m))
+#define MCPCIA_CONF(m) (IDENT_ADDR + 0xf1c0000000UL + MCPCIA_MID(m))
+#define MCPCIA_CSR(m) (IDENT_ADDR + 0xf1e0000000UL + MCPCIA_MID(m))
+#define MCPCIA_IO_IACK(m) (IDENT_ADDR + 0xf1f0000000UL + MCPCIA_MID(m))
+#define MCPCIA_DENSE_IO(m) (IDENT_ADDR + 0xe1fc000000UL + MCPCIA_MID(m))
+#define MCPCIA_DENSE_CONF(m) (IDENT_ADDR + 0xe1fe000000UL + MCPCIA_MID(m))
+
+/*
+ * General Registers
+ */
+#define MCPCIA_REV(m) (MCPCIA_CSR(m) + 0x000)
+#define MCPCIA_WHOAMI(m) (MCPCIA_CSR(m) + 0x040)
+#define MCPCIA_PCI_LAT(m) (MCPCIA_CSR(m) + 0x080)
+#define MCPCIA_CAP_CTRL(m) (MCPCIA_CSR(m) + 0x100)
+#define MCPCIA_HAE_MEM(m) (MCPCIA_CSR(m) + 0x400)
+#define MCPCIA_HAE_IO(m) (MCPCIA_CSR(m) + 0x440)
+#define _MCPCIA_IACK_SC(m) (MCPCIA_CSR(m) + 0x480)
+#define MCPCIA_HAE_DENSE(m) (MCPCIA_CSR(m) + 0x4C0)
+
+/*
+ * Interrupt Control registers
+ */
+#define MCPCIA_INT_CTL(m) (MCPCIA_CSR(m) + 0x500)
+#define MCPCIA_INT_REQ(m) (MCPCIA_CSR(m) + 0x540)
+#define MCPCIA_INT_TARG(m) (MCPCIA_CSR(m) + 0x580)
+#define MCPCIA_INT_ADR(m) (MCPCIA_CSR(m) + 0x5C0)
+#define MCPCIA_INT_ADR_EXT(m) (MCPCIA_CSR(m) + 0x600)
+#define MCPCIA_INT_MASK0(m) (MCPCIA_CSR(m) + 0x640)
+#define MCPCIA_INT_MASK1(m) (MCPCIA_CSR(m) + 0x680)
+#define MCPCIA_INT_ACK0(m) (MCPCIA_CSR(m) + 0x10003f00)
+#define MCPCIA_INT_ACK1(m) (MCPCIA_CSR(m) + 0x10003f40)
+
+/*
+ * Performance Monitor registers
+ */
+#define MCPCIA_PERF_MON(m) (MCPCIA_CSR(m) + 0x300)
+#define MCPCIA_PERF_CONT(m) (MCPCIA_CSR(m) + 0x340)
+
+/*
+ * Diagnostic Registers
+ */
+#define MCPCIA_CAP_DIAG(m) (MCPCIA_CSR(m) + 0x700)
+#define MCPCIA_TOP_OF_MEM(m) (MCPCIA_CSR(m) + 0x7C0)
+
+/*
+ * Error registers
+ */
+#define MCPCIA_MC_ERR0(m) (MCPCIA_CSR(m) + 0x800)
+#define MCPCIA_MC_ERR1(m) (MCPCIA_CSR(m) + 0x840)
+#define MCPCIA_CAP_ERR(m) (MCPCIA_CSR(m) + 0x880)
+#define MCPCIA_PCI_ERR1(m) (MCPCIA_CSR(m) + 0x1040)
+#define MCPCIA_MDPA_STAT(m) (MCPCIA_CSR(m) + 0x4000)
+#define MCPCIA_MDPA_SYN(m) (MCPCIA_CSR(m) + 0x4040)
+#define MCPCIA_MDPA_DIAG(m) (MCPCIA_CSR(m) + 0x4080)
+#define MCPCIA_MDPB_STAT(m) (MCPCIA_CSR(m) + 0x8000)
+#define MCPCIA_MDPB_SYN(m) (MCPCIA_CSR(m) + 0x8040)
+#define MCPCIA_MDPB_DIAG(m) (MCPCIA_CSR(m) + 0x8080)
+
+/*
+ * PCI Address Translation Registers.
+ */
+#define MCPCIA_SG_TBIA(m) (MCPCIA_CSR(m) + 0x1300)
+#define MCPCIA_HBASE(m) (MCPCIA_CSR(m) + 0x1340)
+
+#define MCPCIA_W0_BASE(m) (MCPCIA_CSR(m) + 0x1400)
+#define MCPCIA_W0_MASK(m) (MCPCIA_CSR(m) + 0x1440)
+#define MCPCIA_T0_BASE(m) (MCPCIA_CSR(m) + 0x1480)
+
+#define MCPCIA_W1_BASE(m) (MCPCIA_CSR(m) + 0x1500)
+#define MCPCIA_W1_MASK(m) (MCPCIA_CSR(m) + 0x1540)
+#define MCPCIA_T1_BASE(m) (MCPCIA_CSR(m) + 0x1580)
+
+#define MCPCIA_W2_BASE(m) (MCPCIA_CSR(m) + 0x1600)
+#define MCPCIA_W2_MASK(m) (MCPCIA_CSR(m) + 0x1640)
+#define MCPCIA_T2_BASE(m) (MCPCIA_CSR(m) + 0x1680)
+
+#define MCPCIA_W3_BASE(m) (MCPCIA_CSR(m) + 0x1700)
+#define MCPCIA_W3_MASK(m) (MCPCIA_CSR(m) + 0x1740)
+#define MCPCIA_T3_BASE(m) (MCPCIA_CSR(m) + 0x1780)
+
+/* Hack! Only words for bus 0. */
+
+#ifndef MCPCIA_ONE_HAE_WINDOW
+#define MCPCIA_HAE_ADDRESS MCPCIA_HAE_MEM(4)
+#endif
+#define MCPCIA_IACK_SC _MCPCIA_IACK_SC(4)
+
+/*
+ * The canonical non-remaped I/O and MEM addresses have these values
+ * subtracted out. This is arranged so that folks manipulating ISA
+ * devices can use their familiar numbers and have them map to bus 0.
+ */
+
+#define MCPCIA_IO_BIAS MCPCIA_IO(4)
+#define MCPCIA_MEM_BIAS MCPCIA_DENSE(4)
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses. */
+#define MCPCIA_DAC_OFFSET (1UL << 40)
+
+/*
+ * Data structure for handling MCPCIA machine checks:
+ */
+struct el_MCPCIA_uncorrected_frame_mcheck {
+ struct el_common header;
+ struct el_common_EV5_uncorrectable_mcheck procdata;
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * MCPCIA, the RAWHIDE family PCI/memory support chipset for the EV5 (21164)
+ * and EV56 (21164a) processors, can use either a sparse address mapping
+ * scheme, or the so-called byte-word PCI address space, to get at PCI memory
+ * and I/O.
+ *
+ * Unfortunately, we can't use BWIO with EV5, so for now, we always use SPARSE.
+ */
+
+/*
+ * Memory functions. 64-bit and 32-bit accesses are done through
+ * dense memory space, everything else through sparse space.
+ *
+ * For reading and writing 8 and 16 bit quantities we need to
+ * go through one of the three sparse address mapping regions
+ * and use the HAE_MEM CSR to provide some bits of the address.
+ * The following few routines use only sparse address region 1
+ * which gives 1Gbyte of accessible space which relates exactly
+ * to the amount of PCI memory mapping *into* system address space.
+ * See p 6-17 of the specification but it looks something like this:
+ *
+ * 21164 Address:
+ *
+ * 3 2 1
+ * 9876543210987654321098765432109876543210
+ * 1ZZZZ0.PCI.QW.Address............BBLL
+ *
+ * ZZ = SBZ
+ * BB = Byte offset
+ * LL = Transfer length
+ *
+ * PCI Address:
+ *
+ * 3 2 1
+ * 10987654321098765432109876543210
+ * HHH....PCI.QW.Address........ 00
+ *
+ * HHH = 31:29 HAE_MEM CSR
+ *
+ */
+
+#define vip volatile int __force *
+#define vuip volatile unsigned int __force *
+#define vulp volatile unsigned long __force *
+
+#ifndef MCPCIA_ONE_HAE_WINDOW
+#define MCPCIA_FROB_MMIO \
+ if (__mcpcia_is_mmio(hose)) { \
+ set_hae(hose & 0xffffffff); \
+ hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4); \
+ }
+#else
+#define MCPCIA_FROB_MMIO \
+ if (__mcpcia_is_mmio(hose)) { \
+ hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4); \
+ }
+#endif
+
+extern inline int __mcpcia_is_mmio(unsigned long addr)
+{
+ return (addr & 0x80000000UL) == 0;
+}
+
+__EXTERN_INLINE u8 mcpcia_ioread8(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+ unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+ unsigned long result;
+
+ MCPCIA_FROB_MMIO;
+
+ result = *(vip) ((addr << 5) + hose + 0x00);
+ return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void mcpcia_iowrite8(u8 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+ unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+ unsigned long w;
+
+ MCPCIA_FROB_MMIO;
+
+ w = __kernel_insbl(b, addr & 3);
+ *(vuip) ((addr << 5) + hose + 0x00) = w;
+}
+
+__EXTERN_INLINE u16 mcpcia_ioread16(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+ unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+ unsigned long result;
+
+ MCPCIA_FROB_MMIO;
+
+ result = *(vip) ((addr << 5) + hose + 0x08);
+ return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void mcpcia_iowrite16(u16 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+ unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+ unsigned long w;
+
+ MCPCIA_FROB_MMIO;
+
+ w = __kernel_inswl(b, addr & 3);
+ *(vuip) ((addr << 5) + hose + 0x08) = w;
+}
+
+__EXTERN_INLINE u32 mcpcia_ioread32(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr;
+
+ if (!__mcpcia_is_mmio(addr))
+ addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+ return *(vuip)addr;
+}
+
+__EXTERN_INLINE void mcpcia_iowrite32(u32 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr;
+
+ if (!__mcpcia_is_mmio(addr))
+ addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+ *(vuip)addr = b;
+}
+
+__EXTERN_INLINE u64 mcpcia_ioread64(const void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr;
+
+ if (!__mcpcia_is_mmio(addr))
+ addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+ return *(vulp)addr;
+}
+
+__EXTERN_INLINE void mcpcia_iowrite64(u64 b, void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr;
+
+ if (!__mcpcia_is_mmio(addr))
+ addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+ *(vulp)addr = b;
+}
+
+
+__EXTERN_INLINE void __iomem *mcpcia_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)(addr + MCPCIA_IO_BIAS);
+}
+
+__EXTERN_INLINE void __iomem *mcpcia_ioremap(unsigned long addr,
+ unsigned long size)
+{
+ return (void __iomem *)(addr + MCPCIA_MEM_BIAS);
+}
+
+__EXTERN_INLINE int mcpcia_is_ioaddr(unsigned long addr)
+{
+ return addr >= MCPCIA_SPARSE(0);
+}
+
+__EXTERN_INLINE int mcpcia_is_mmio(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ return __mcpcia_is_mmio(addr);
+}
+
+#undef MCPCIA_FROB_MMIO
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX mcpcia
+#define mcpcia_trivial_rw_bw 2
+#define mcpcia_trivial_rw_lq 1
+#define mcpcia_trivial_io_bw 0
+#define mcpcia_trivial_io_lq 0
+#define mcpcia_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_MCPCIA__H__ */
diff --git a/arch/alpha/include/asm/core_polaris.h b/arch/alpha/include/asm/core_polaris.h
new file mode 100644
index 0000000000..1c56dea647
--- /dev/null
+++ b/arch/alpha/include/asm/core_polaris.h
@@ -0,0 +1,111 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_POLARIS__H__
+#define __ALPHA_POLARIS__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * POLARIS is the internal name for a core logic chipset which provides
+ * memory controller and PCI access for the 21164PC chip based systems.
+ *
+ * This file is based on:
+ *
+ * Polaris System Controller
+ * Device Functional Specification
+ * 22-Jan-98
+ * Rev. 4.2
+ *
+ */
+
+/* Polaris memory regions */
+#define POLARIS_SPARSE_MEM_BASE (IDENT_ADDR + 0xf800000000UL)
+#define POLARIS_DENSE_MEM_BASE (IDENT_ADDR + 0xf900000000UL)
+#define POLARIS_SPARSE_IO_BASE (IDENT_ADDR + 0xf980000000UL)
+#define POLARIS_SPARSE_CONFIG_BASE (IDENT_ADDR + 0xf9c0000000UL)
+#define POLARIS_IACK_BASE (IDENT_ADDR + 0xf9f8000000UL)
+#define POLARIS_DENSE_IO_BASE (IDENT_ADDR + 0xf9fc000000UL)
+#define POLARIS_DENSE_CONFIG_BASE (IDENT_ADDR + 0xf9fe000000UL)
+
+#define POLARIS_IACK_SC POLARIS_IACK_BASE
+
+/* The Polaris command/status registers live in PCI Config space for
+ * bus 0/device 0. As such, they may be bytes, words, or doublewords.
+ */
+#define POLARIS_W_VENID (POLARIS_DENSE_CONFIG_BASE)
+#define POLARIS_W_DEVID (POLARIS_DENSE_CONFIG_BASE+2)
+#define POLARIS_W_CMD (POLARIS_DENSE_CONFIG_BASE+4)
+#define POLARIS_W_STATUS (POLARIS_DENSE_CONFIG_BASE+6)
+
+/*
+ * Data structure for handling POLARIS machine checks:
+ */
+struct el_POLARIS_sysdata_mcheck {
+ u_long psc_status;
+ u_long psc_pcictl0;
+ u_long psc_pcictl1;
+ u_long psc_pcictl2;
+};
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * POLARIS, the PCI/memory support chipset for the PCA56 (21164PC)
+ * processors, can use either a sparse address mapping scheme, or the
+ * so-called byte-word PCI address space, to get at PCI memory and I/O.
+ *
+ * However, we will support only the BWX form.
+ */
+
+/*
+ * Memory functions. Polaris allows all accesses (byte/word
+ * as well as long/quad) to be done through dense space.
+ *
+ * We will only support DENSE access via BWX insns.
+ */
+
+__EXTERN_INLINE void __iomem *polaris_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)(addr + POLARIS_DENSE_IO_BASE);
+}
+
+__EXTERN_INLINE void __iomem *polaris_ioremap(unsigned long addr,
+ unsigned long size)
+{
+ return (void __iomem *)(addr + POLARIS_DENSE_MEM_BASE);
+}
+
+__EXTERN_INLINE int polaris_is_ioaddr(unsigned long addr)
+{
+ return addr >= POLARIS_SPARSE_MEM_BASE;
+}
+
+__EXTERN_INLINE int polaris_is_mmio(const volatile void __iomem *addr)
+{
+ return (unsigned long)addr < POLARIS_SPARSE_IO_BASE;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX polaris
+#define polaris_trivial_rw_bw 1
+#define polaris_trivial_rw_lq 1
+#define polaris_trivial_io_bw 1
+#define polaris_trivial_io_lq 1
+#define polaris_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_POLARIS__H__ */
diff --git a/arch/alpha/include/asm/core_t2.h b/arch/alpha/include/asm/core_t2.h
new file mode 100644
index 0000000000..ab956b1625
--- /dev/null
+++ b/arch/alpha/include/asm/core_t2.h
@@ -0,0 +1,629 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_T2__H__
+#define __ALPHA_T2__H__
+
+/* Fit everything into one 128MB HAE window. */
+#define T2_ONE_HAE_WINDOW 1
+
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <asm/compiler.h>
+
+/*
+ * T2 is the internal name for the core logic chipset which provides
+ * memory controller and PCI access for the SABLE-based systems.
+ *
+ * This file is based on:
+ *
+ * SABLE I/O Specification
+ * Revision/Update Information: 1.3
+ *
+ * jestabro@amt.tay1.dec.com Initial Version.
+ *
+ */
+
+#define T2_MEM_R1_MASK 0x07ffffff /* Mem sparse region 1 mask is 27 bits */
+
+/* GAMMA-SABLE is a SABLE with EV5-based CPUs */
+/* All LYNX machines, EV4 or EV5, use the GAMMA bias also */
+#define _GAMMA_BIAS 0x8000000000UL
+
+#if defined(CONFIG_ALPHA_GENERIC)
+#define GAMMA_BIAS alpha_mv.sys.t2.gamma_bias
+#elif defined(CONFIG_ALPHA_GAMMA)
+#define GAMMA_BIAS _GAMMA_BIAS
+#else
+#define GAMMA_BIAS 0
+#endif
+
+/*
+ * Memory spaces:
+ */
+#define T2_CONF (IDENT_ADDR + GAMMA_BIAS + 0x390000000UL)
+#define T2_IO (IDENT_ADDR + GAMMA_BIAS + 0x3a0000000UL)
+#define T2_SPARSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x200000000UL)
+#define T2_DENSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x3c0000000UL)
+
+#define T2_IOCSR (IDENT_ADDR + GAMMA_BIAS + 0x38e000000UL)
+#define T2_CERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000020UL)
+#define T2_CERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000040UL)
+#define T2_CERR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000060UL)
+#define T2_PERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000080UL)
+#define T2_PERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000a0UL)
+#define T2_PSCR (IDENT_ADDR + GAMMA_BIAS + 0x38e0000c0UL)
+#define T2_HAE_1 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000e0UL)
+#define T2_HAE_2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000100UL)
+#define T2_HBASE (IDENT_ADDR + GAMMA_BIAS + 0x38e000120UL)
+#define T2_WBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000140UL)
+#define T2_WMASK1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000160UL)
+#define T2_TBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000180UL)
+#define T2_WBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001a0UL)
+#define T2_WMASK2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001c0UL)
+#define T2_TBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001e0UL)
+#define T2_TLBBR (IDENT_ADDR + GAMMA_BIAS + 0x38e000200UL)
+#define T2_IVR (IDENT_ADDR + GAMMA_BIAS + 0x38e000220UL)
+#define T2_HAE_3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000240UL)
+#define T2_HAE_4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000260UL)
+
+/* The CSRs below are T3/T4 only */
+#define T2_WBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000280UL)
+#define T2_WMASK3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002a0UL)
+#define T2_TBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002c0UL)
+
+#define T2_TDR0 (IDENT_ADDR + GAMMA_BIAS + 0x38e000300UL)
+#define T2_TDR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000320UL)
+#define T2_TDR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000340UL)
+#define T2_TDR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000360UL)
+#define T2_TDR4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000380UL)
+#define T2_TDR5 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003a0UL)
+#define T2_TDR6 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003c0UL)
+#define T2_TDR7 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003e0UL)
+
+#define T2_WBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000400UL)
+#define T2_WMASK4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000420UL)
+#define T2_TBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000440UL)
+
+#define T2_AIR (IDENT_ADDR + GAMMA_BIAS + 0x38e000460UL)
+#define T2_VAR (IDENT_ADDR + GAMMA_BIAS + 0x38e000480UL)
+#define T2_DIR (IDENT_ADDR + GAMMA_BIAS + 0x38e0004a0UL)
+#define T2_ICE (IDENT_ADDR + GAMMA_BIAS + 0x38e0004c0UL)
+
+#ifndef T2_ONE_HAE_WINDOW
+#define T2_HAE_ADDRESS T2_HAE_1
+#endif
+
+/* T2 CSRs are in the non-cachable primary IO space from 3.8000.0000 to
+ 3.8fff.ffff
+ *
+ * +--------------+ 3 8000 0000
+ * | CPU 0 CSRs |
+ * +--------------+ 3 8100 0000
+ * | CPU 1 CSRs |
+ * +--------------+ 3 8200 0000
+ * | CPU 2 CSRs |
+ * +--------------+ 3 8300 0000
+ * | CPU 3 CSRs |
+ * +--------------+ 3 8400 0000
+ * | CPU Reserved |
+ * +--------------+ 3 8700 0000
+ * | Mem Reserved |
+ * +--------------+ 3 8800 0000
+ * | Mem 0 CSRs |
+ * +--------------+ 3 8900 0000
+ * | Mem 1 CSRs |
+ * +--------------+ 3 8a00 0000
+ * | Mem 2 CSRs |
+ * +--------------+ 3 8b00 0000
+ * | Mem 3 CSRs |
+ * +--------------+ 3 8c00 0000
+ * | Mem Reserved |
+ * +--------------+ 3 8e00 0000
+ * | PCI Bridge |
+ * +--------------+ 3 8f00 0000
+ * | Expansion IO |
+ * +--------------+ 3 9000 0000
+ *
+ *
+ */
+#define T2_CPU0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x380000000L)
+#define T2_CPU1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x381000000L)
+#define T2_CPU2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x382000000L)
+#define T2_CPU3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x383000000L)
+
+#define T2_CPUn_BASE(n) (T2_CPU0_BASE + (((n)&3) * 0x001000000L))
+
+#define T2_MEM0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x388000000L)
+#define T2_MEM1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x389000000L)
+#define T2_MEM2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38a000000L)
+#define T2_MEM3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38b000000L)
+
+
+/*
+ * Sable CPU Module CSRS
+ *
+ * These are CSRs for hardware other than the CPU chip on the CPU module.
+ * The CPU module has Backup Cache control logic, Cbus control logic, and
+ * interrupt control logic on it. There is a duplicate tag store to speed
+ * up maintaining cache coherency.
+ */
+
+struct sable_cpu_csr {
+ unsigned long bcc; long fill_00[3]; /* Backup Cache Control */
+ unsigned long bcce; long fill_01[3]; /* Backup Cache Correctable Error */
+ unsigned long bccea; long fill_02[3]; /* B-Cache Corr Err Address Latch */
+ unsigned long bcue; long fill_03[3]; /* B-Cache Uncorrectable Error */
+ unsigned long bcuea; long fill_04[3]; /* B-Cache Uncorr Err Addr Latch */
+ unsigned long dter; long fill_05[3]; /* Duplicate Tag Error */
+ unsigned long cbctl; long fill_06[3]; /* CBus Control */
+ unsigned long cbe; long fill_07[3]; /* CBus Error */
+ unsigned long cbeal; long fill_08[3]; /* CBus Error Addr Latch low */
+ unsigned long cbeah; long fill_09[3]; /* CBus Error Addr Latch high */
+ unsigned long pmbx; long fill_10[3]; /* Processor Mailbox */
+ unsigned long ipir; long fill_11[3]; /* Inter-Processor Int Request */
+ unsigned long sic; long fill_12[3]; /* System Interrupt Clear */
+ unsigned long adlk; long fill_13[3]; /* Address Lock (LDxL/STxC) */
+ unsigned long madrl; long fill_14[3]; /* CBus Miss Address */
+ unsigned long rev; long fill_15[3]; /* CMIC Revision */
+};
+
+/*
+ * Data structure for handling T2 machine checks:
+ */
+struct el_t2_frame_header {
+ unsigned int elcf_fid; /* Frame ID (from above) */
+ unsigned int elcf_size; /* Size of frame in bytes */
+};
+
+struct el_t2_procdata_mcheck {
+ unsigned long elfmc_paltemp[32]; /* PAL TEMP REGS. */
+ /* EV4-specific fields */
+ unsigned long elfmc_exc_addr; /* Addr of excepting insn. */
+ unsigned long elfmc_exc_sum; /* Summary of arith traps. */
+ unsigned long elfmc_exc_mask; /* Exception mask (from exc_sum). */
+ unsigned long elfmc_iccsr; /* IBox hardware enables. */
+ unsigned long elfmc_pal_base; /* Base address for PALcode. */
+ unsigned long elfmc_hier; /* Hardware Interrupt Enable. */
+ unsigned long elfmc_hirr; /* Hardware Interrupt Request. */
+ unsigned long elfmc_mm_csr; /* D-stream fault info. */
+ unsigned long elfmc_dc_stat; /* D-cache status (ECC/Parity Err). */
+ unsigned long elfmc_dc_addr; /* EV3 Phys Addr for ECC/DPERR. */
+ unsigned long elfmc_abox_ctl; /* ABox Control Register. */
+ unsigned long elfmc_biu_stat; /* BIU Status. */
+ unsigned long elfmc_biu_addr; /* BUI Address. */
+ unsigned long elfmc_biu_ctl; /* BIU Control. */
+ unsigned long elfmc_fill_syndrome; /* For correcting ECC errors. */
+ unsigned long elfmc_fill_addr;/* Cache block which was being read. */
+ unsigned long elfmc_va; /* Effective VA of fault or miss. */
+ unsigned long elfmc_bc_tag; /* Backup Cache Tag Probe Results. */
+};
+
+/*
+ * Sable processor specific Machine Check Data segment.
+ */
+
+struct el_t2_logout_header {
+ unsigned int elfl_size; /* size in bytes of logout area. */
+ unsigned int elfl_sbz1:31; /* Should be zero. */
+ unsigned int elfl_retry:1; /* Retry flag. */
+ unsigned int elfl_procoffset; /* Processor-specific offset. */
+ unsigned int elfl_sysoffset; /* Offset of system-specific. */
+ unsigned int elfl_error_type; /* PAL error type code. */
+ unsigned int elfl_frame_rev; /* PAL Frame revision. */
+};
+struct el_t2_sysdata_mcheck {
+ unsigned long elcmc_bcc; /* CSR 0 */
+ unsigned long elcmc_bcce; /* CSR 1 */
+ unsigned long elcmc_bccea; /* CSR 2 */
+ unsigned long elcmc_bcue; /* CSR 3 */
+ unsigned long elcmc_bcuea; /* CSR 4 */
+ unsigned long elcmc_dter; /* CSR 5 */
+ unsigned long elcmc_cbctl; /* CSR 6 */
+ unsigned long elcmc_cbe; /* CSR 7 */
+ unsigned long elcmc_cbeal; /* CSR 8 */
+ unsigned long elcmc_cbeah; /* CSR 9 */
+ unsigned long elcmc_pmbx; /* CSR 10 */
+ unsigned long elcmc_ipir; /* CSR 11 */
+ unsigned long elcmc_sic; /* CSR 12 */
+ unsigned long elcmc_adlk; /* CSR 13 */
+ unsigned long elcmc_madrl; /* CSR 14 */
+ unsigned long elcmc_crrev4; /* CSR 15 */
+};
+
+/*
+ * Sable memory error frame - sable pfms section 3.42
+ */
+struct el_t2_data_memory {
+ struct el_t2_frame_header elcm_hdr; /* ID$MEM-FERR = 0x08 */
+ unsigned int elcm_module; /* Module id. */
+ unsigned int elcm_res04; /* Reserved. */
+ unsigned long elcm_merr; /* CSR0: Error Reg 1. */
+ unsigned long elcm_mcmd1; /* CSR1: Command Trap 1. */
+ unsigned long elcm_mcmd2; /* CSR2: Command Trap 2. */
+ unsigned long elcm_mconf; /* CSR3: Configuration. */
+ unsigned long elcm_medc1; /* CSR4: EDC Status 1. */
+ unsigned long elcm_medc2; /* CSR5: EDC Status 2. */
+ unsigned long elcm_medcc; /* CSR6: EDC Control. */
+ unsigned long elcm_msctl; /* CSR7: Stream Buffer Control. */
+ unsigned long elcm_mref; /* CSR8: Refresh Control. */
+ unsigned long elcm_filter; /* CSR9: CRD Filter Control. */
+};
+
+
+/*
+ * Sable other CPU error frame - sable pfms section 3.43
+ */
+struct el_t2_data_other_cpu {
+ short elco_cpuid; /* CPU ID */
+ short elco_res02[3];
+ unsigned long elco_bcc; /* CSR 0 */
+ unsigned long elco_bcce; /* CSR 1 */
+ unsigned long elco_bccea; /* CSR 2 */
+ unsigned long elco_bcue; /* CSR 3 */
+ unsigned long elco_bcuea; /* CSR 4 */
+ unsigned long elco_dter; /* CSR 5 */
+ unsigned long elco_cbctl; /* CSR 6 */
+ unsigned long elco_cbe; /* CSR 7 */
+ unsigned long elco_cbeal; /* CSR 8 */
+ unsigned long elco_cbeah; /* CSR 9 */
+ unsigned long elco_pmbx; /* CSR 10 */
+ unsigned long elco_ipir; /* CSR 11 */
+ unsigned long elco_sic; /* CSR 12 */
+ unsigned long elco_adlk; /* CSR 13 */
+ unsigned long elco_madrl; /* CSR 14 */
+ unsigned long elco_crrev4; /* CSR 15 */
+};
+
+/*
+ * Sable other CPU error frame - sable pfms section 3.44
+ */
+struct el_t2_data_t2{
+ struct el_t2_frame_header elct_hdr; /* ID$T2-FRAME */
+ unsigned long elct_iocsr; /* IO Control and Status Register */
+ unsigned long elct_cerr1; /* Cbus Error Register 1 */
+ unsigned long elct_cerr2; /* Cbus Error Register 2 */
+ unsigned long elct_cerr3; /* Cbus Error Register 3 */
+ unsigned long elct_perr1; /* PCI Error Register 1 */
+ unsigned long elct_perr2; /* PCI Error Register 2 */
+ unsigned long elct_hae0_1; /* High Address Extension Register 1 */
+ unsigned long elct_hae0_2; /* High Address Extension Register 2 */
+ unsigned long elct_hbase; /* High Base Register */
+ unsigned long elct_wbase1; /* Window Base Register 1 */
+ unsigned long elct_wmask1; /* Window Mask Register 1 */
+ unsigned long elct_tbase1; /* Translated Base Register 1 */
+ unsigned long elct_wbase2; /* Window Base Register 2 */
+ unsigned long elct_wmask2; /* Window Mask Register 2 */
+ unsigned long elct_tbase2; /* Translated Base Register 2 */
+ unsigned long elct_tdr0; /* TLB Data Register 0 */
+ unsigned long elct_tdr1; /* TLB Data Register 1 */
+ unsigned long elct_tdr2; /* TLB Data Register 2 */
+ unsigned long elct_tdr3; /* TLB Data Register 3 */
+ unsigned long elct_tdr4; /* TLB Data Register 4 */
+ unsigned long elct_tdr5; /* TLB Data Register 5 */
+ unsigned long elct_tdr6; /* TLB Data Register 6 */
+ unsigned long elct_tdr7; /* TLB Data Register 7 */
+};
+
+/*
+ * Sable error log data structure - sable pfms section 3.40
+ */
+struct el_t2_data_corrected {
+ unsigned long elcpb_biu_stat;
+ unsigned long elcpb_biu_addr;
+ unsigned long elcpb_biu_ctl;
+ unsigned long elcpb_fill_syndrome;
+ unsigned long elcpb_fill_addr;
+ unsigned long elcpb_bc_tag;
+};
+
+/*
+ * Sable error log data structure
+ * Note there are 4 memory slots on sable (see t2.h)
+ */
+struct el_t2_frame_mcheck {
+ struct el_t2_frame_header elfmc_header; /* ID$P-FRAME_MCHECK */
+ struct el_t2_logout_header elfmc_hdr;
+ struct el_t2_procdata_mcheck elfmc_procdata;
+ struct el_t2_sysdata_mcheck elfmc_sysdata;
+ struct el_t2_data_t2 elfmc_t2data;
+ struct el_t2_data_memory elfmc_memdata[4];
+ struct el_t2_frame_header elfmc_footer; /* empty */
+};
+
+
+/*
+ * Sable error log data structures on memory errors
+ */
+struct el_t2_frame_corrected {
+ struct el_t2_frame_header elfcc_header; /* ID$P-BC-COR */
+ struct el_t2_logout_header elfcc_hdr;
+ struct el_t2_data_corrected elfcc_procdata;
+/* struct el_t2_data_t2 elfcc_t2data; */
+/* struct el_t2_data_memory elfcc_memdata[4]; */
+ struct el_t2_frame_header elfcc_footer; /* empty */
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * T2 (the core logic PCI/memory support chipset for the SABLE
+ * series of processors uses a sparse address mapping scheme to
+ * get at PCI memory and I/O.
+ */
+
+#define vip volatile int *
+#define vuip volatile unsigned int *
+#define vulp volatile unsigned long *
+
+extern inline u8 t2_inb(unsigned long addr)
+{
+ long result = *(vip) ((addr << 5) + T2_IO + 0x00);
+ return __kernel_extbl(result, addr & 3);
+}
+
+extern inline void t2_outb(u8 b, unsigned long addr)
+{
+ unsigned long w;
+
+ w = __kernel_insbl(b, addr & 3);
+ *(vuip) ((addr << 5) + T2_IO + 0x00) = w;
+ mb();
+}
+
+extern inline u16 t2_inw(unsigned long addr)
+{
+ long result = *(vip) ((addr << 5) + T2_IO + 0x08);
+ return __kernel_extwl(result, addr & 3);
+}
+
+extern inline void t2_outw(u16 b, unsigned long addr)
+{
+ unsigned long w;
+
+ w = __kernel_inswl(b, addr & 3);
+ *(vuip) ((addr << 5) + T2_IO + 0x08) = w;
+ mb();
+}
+
+extern inline u32 t2_inl(unsigned long addr)
+{
+ return *(vuip) ((addr << 5) + T2_IO + 0x18);
+}
+
+extern inline void t2_outl(u32 b, unsigned long addr)
+{
+ *(vuip) ((addr << 5) + T2_IO + 0x18) = b;
+ mb();
+}
+
+extern inline u64 t2_inq(unsigned long addr)
+{
+ return *(vulp) ((addr << 5) + T2_IO + 0x18);
+}
+
+extern inline void t2_outq(u64 b, unsigned long addr)
+{
+ *(vulp) ((addr << 5) + T2_IO + 0x18) = b;
+ mb();
+}
+
+
+/*
+ * Memory functions.
+ *
+ * For reading and writing 8 and 16 bit quantities we need to
+ * go through one of the three sparse address mapping regions
+ * and use the HAE_MEM CSR to provide some bits of the address.
+ * The following few routines use only sparse address region 1
+ * which gives 1Gbyte of accessible space which relates exactly
+ * to the amount of PCI memory mapping *into* system address space.
+ * See p 6-17 of the specification but it looks something like this:
+ *
+ * 21164 Address:
+ *
+ * 3 2 1
+ * 9876543210987654321098765432109876543210
+ * 1ZZZZ0.PCI.QW.Address............BBLL
+ *
+ * ZZ = SBZ
+ * BB = Byte offset
+ * LL = Transfer length
+ *
+ * PCI Address:
+ *
+ * 3 2 1
+ * 10987654321098765432109876543210
+ * HHH....PCI.QW.Address........ 00
+ *
+ * HHH = 31:29 HAE_MEM CSR
+ *
+ */
+
+#ifdef T2_ONE_HAE_WINDOW
+#define t2_set_hae
+#else
+#define t2_set_hae { \
+ unsigned long msb = addr >> 27; \
+ addr &= T2_MEM_R1_MASK; \
+ set_hae(msb); \
+}
+#endif
+
+/*
+ * NOTE: take T2_DENSE_MEM off in each readX/writeX routine, since
+ * they may be called directly, rather than through the
+ * ioreadNN/iowriteNN routines.
+ */
+
+__EXTERN_INLINE u8 t2_readb(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+ unsigned long result;
+
+ t2_set_hae;
+
+ result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00);
+ return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE u16 t2_readw(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+ unsigned long result;
+
+ t2_set_hae;
+
+ result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08);
+ return __kernel_extwl(result, addr & 3);
+}
+
+/*
+ * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
+ * because we cannot access all of DENSE without changing its HAE.
+ */
+__EXTERN_INLINE u32 t2_readl(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+ unsigned long result;
+
+ t2_set_hae;
+
+ result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18);
+ return result & 0xffffffffUL;
+}
+
+__EXTERN_INLINE u64 t2_readq(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+ unsigned long r0, r1, work;
+
+ t2_set_hae;
+
+ work = (addr << 5) + T2_SPARSE_MEM + 0x18;
+ r0 = *(vuip)(work);
+ r1 = *(vuip)(work + (4 << 5));
+ return r1 << 32 | r0;
+}
+
+__EXTERN_INLINE void t2_writeb(u8 b, volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+ unsigned long w;
+
+ t2_set_hae;
+
+ w = __kernel_insbl(b, addr & 3);
+ *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w;
+}
+
+__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+ unsigned long w;
+
+ t2_set_hae;
+
+ w = __kernel_inswl(b, addr & 3);
+ *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w;
+}
+
+/*
+ * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
+ * because we cannot access all of DENSE without changing its HAE.
+ */
+__EXTERN_INLINE void t2_writel(u32 b, volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+
+ t2_set_hae;
+
+ *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b;
+}
+
+__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+ unsigned long work;
+
+ t2_set_hae;
+
+ work = (addr << 5) + T2_SPARSE_MEM + 0x18;
+ *(vuip)work = b;
+ *(vuip)(work + (4 << 5)) = b >> 32;
+}
+
+__EXTERN_INLINE void __iomem *t2_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)(addr + T2_IO);
+}
+
+__EXTERN_INLINE void __iomem *t2_ioremap(unsigned long addr,
+ unsigned long size)
+{
+ return (void __iomem *)(addr + T2_DENSE_MEM);
+}
+
+__EXTERN_INLINE int t2_is_ioaddr(unsigned long addr)
+{
+ return (long)addr >= 0;
+}
+
+__EXTERN_INLINE int t2_is_mmio(const volatile void __iomem *addr)
+{
+ return (unsigned long)addr >= T2_DENSE_MEM;
+}
+
+/* New-style ioread interface. The mmio routines are so ugly for T2 that
+ it doesn't make sense to merge the pio and mmio routines. */
+
+#define IOPORT(OS, NS) \
+__EXTERN_INLINE u##NS t2_ioread##NS(const void __iomem *xaddr) \
+{ \
+ if (t2_is_mmio(xaddr)) \
+ return t2_read##OS(xaddr); \
+ else \
+ return t2_in##OS((unsigned long)xaddr - T2_IO); \
+} \
+__EXTERN_INLINE void t2_iowrite##NS(u##NS b, void __iomem *xaddr) \
+{ \
+ if (t2_is_mmio(xaddr)) \
+ t2_write##OS(b, xaddr); \
+ else \
+ t2_out##OS(b, (unsigned long)xaddr - T2_IO); \
+}
+
+IOPORT(b, 8)
+IOPORT(w, 16)
+IOPORT(l, 32)
+IOPORT(q, 64)
+
+#undef IOPORT
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX t2
+#define t2_trivial_rw_bw 0
+#define t2_trivial_rw_lq 0
+#define t2_trivial_io_bw 0
+#define t2_trivial_io_lq 0
+#define t2_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_T2__H__ */
diff --git a/arch/alpha/include/asm/core_titan.h b/arch/alpha/include/asm/core_titan.h
new file mode 100644
index 0000000000..dcc02682c1
--- /dev/null
+++ b/arch/alpha/include/asm/core_titan.h
@@ -0,0 +1,410 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_TITAN__H__
+#define __ALPHA_TITAN__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * TITAN is the internal names for a core logic chipset which provides
+ * memory controller and PCI/AGP access for 21264 based systems.
+ *
+ * This file is based on:
+ *
+ * Titan Chipset Engineering Specification
+ * Revision 0.12
+ * 13 July 1999
+ *
+ */
+
+/* XXX: Do we need to conditionalize on this? */
+#ifdef USE_48_BIT_KSEG
+#define TI_BIAS 0x80000000000UL
+#else
+#define TI_BIAS 0x10000000000UL
+#endif
+
+/*
+ * CChip, DChip, and PChip registers
+ */
+
+typedef struct {
+ volatile unsigned long csr __attribute__((aligned(64)));
+} titan_64;
+
+typedef struct {
+ titan_64 csc;
+ titan_64 mtr;
+ titan_64 misc;
+ titan_64 mpd;
+ titan_64 aar0;
+ titan_64 aar1;
+ titan_64 aar2;
+ titan_64 aar3;
+ titan_64 dim0;
+ titan_64 dim1;
+ titan_64 dir0;
+ titan_64 dir1;
+ titan_64 drir;
+ titan_64 prben;
+ titan_64 iic0;
+ titan_64 iic1;
+ titan_64 mpr0;
+ titan_64 mpr1;
+ titan_64 mpr2;
+ titan_64 mpr3;
+ titan_64 rsvd[2];
+ titan_64 ttr;
+ titan_64 tdr;
+ titan_64 dim2;
+ titan_64 dim3;
+ titan_64 dir2;
+ titan_64 dir3;
+ titan_64 iic2;
+ titan_64 iic3;
+ titan_64 pwr;
+ titan_64 reserved[17];
+ titan_64 cmonctla;
+ titan_64 cmonctlb;
+ titan_64 cmoncnt01;
+ titan_64 cmoncnt23;
+ titan_64 cpen;
+} titan_cchip;
+
+typedef struct {
+ titan_64 dsc;
+ titan_64 str;
+ titan_64 drev;
+ titan_64 dsc2;
+} titan_dchip;
+
+typedef struct {
+ titan_64 wsba[4];
+ titan_64 wsm[4];
+ titan_64 tba[4];
+ titan_64 pctl;
+ titan_64 plat;
+ titan_64 reserved0[2];
+ union {
+ struct {
+ titan_64 serror;
+ titan_64 serren;
+ titan_64 serrset;
+ titan_64 reserved0;
+ titan_64 gperror;
+ titan_64 gperren;
+ titan_64 gperrset;
+ titan_64 reserved1;
+ titan_64 gtlbiv;
+ titan_64 gtlbia;
+ titan_64 reserved2[2];
+ titan_64 sctl;
+ titan_64 reserved3[3];
+ } g;
+ struct {
+ titan_64 agperror;
+ titan_64 agperren;
+ titan_64 agperrset;
+ titan_64 agplastwr;
+ titan_64 aperror;
+ titan_64 aperren;
+ titan_64 aperrset;
+ titan_64 reserved0;
+ titan_64 atlbiv;
+ titan_64 atlbia;
+ titan_64 reserved1[6];
+ } a;
+ } port_specific;
+ titan_64 sprst;
+ titan_64 reserved1[31];
+} titan_pachip_port;
+
+typedef struct {
+ titan_pachip_port g_port;
+ titan_pachip_port a_port;
+} titan_pachip;
+
+#define TITAN_cchip ((titan_cchip *)(IDENT_ADDR+TI_BIAS+0x1A0000000UL))
+#define TITAN_dchip ((titan_dchip *)(IDENT_ADDR+TI_BIAS+0x1B0000800UL))
+#define TITAN_pachip0 ((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x180000000UL))
+#define TITAN_pachip1 ((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x380000000UL))
+extern unsigned TITAN_agp;
+extern int TITAN_bootcpu;
+
+/*
+ * TITAN PA-chip Window Space Base Address register.
+ * (WSBA[0-2])
+ */
+#define wsba_m_ena 0x1
+#define wsba_m_sg 0x2
+#define wsba_m_addr 0xFFF00000
+#define wmask_k_sz1gb 0x3FF00000
+union TPAchipWSBA {
+ struct {
+ unsigned wsba_v_ena : 1;
+ unsigned wsba_v_sg : 1;
+ unsigned wsba_v_rsvd1 : 18;
+ unsigned wsba_v_addr : 12;
+ unsigned wsba_v_rsvd2 : 32;
+ } wsba_r_bits;
+ int wsba_q_whole [2];
+};
+
+/*
+ * TITAN PA-chip Control Register
+ * This definition covers both the G-Port GPCTL and the A-PORT APCTL.
+ * Bits <51:0> are the same in both cases. APCTL<63:52> are only
+ * applicable to AGP.
+ */
+#define pctl_m_fbtb 0x00000001
+#define pctl_m_thdis 0x00000002
+#define pctl_m_chaindis 0x00000004
+#define pctl_m_tgtlat 0x00000018
+#define pctl_m_hole 0x00000020
+#define pctl_m_mwin 0x00000040
+#define pctl_m_arbena 0x00000080
+#define pctl_m_prigrp 0x0000FF00
+#define pctl_m_ppri 0x00010000
+#define pctl_m_pcispd66 0x00020000
+#define pctl_m_cngstlt 0x003C0000
+#define pctl_m_ptpdesten 0x3FC00000
+#define pctl_m_dpcen 0x40000000
+#define pctl_m_apcen 0x0000000080000000UL
+#define pctl_m_dcrtv 0x0000000300000000UL
+#define pctl_m_en_stepping 0x0000000400000000UL
+#define apctl_m_rsvd1 0x000FFFF800000000UL
+#define apctl_m_agp_rate 0x0030000000000000UL
+#define apctl_m_agp_sba_en 0x0040000000000000UL
+#define apctl_m_agp_en 0x0080000000000000UL
+#define apctl_m_rsvd2 0x0100000000000000UL
+#define apctl_m_agp_present 0x0200000000000000UL
+#define apctl_agp_hp_rd 0x1C00000000000000UL
+#define apctl_agp_lp_rd 0xE000000000000000UL
+#define gpctl_m_rsvd 0xFFFFFFF800000000UL
+union TPAchipPCTL {
+ struct {
+ unsigned pctl_v_fbtb : 1; /* A/G [0] */
+ unsigned pctl_v_thdis : 1; /* A/G [1] */
+ unsigned pctl_v_chaindis : 1; /* A/G [2] */
+ unsigned pctl_v_tgtlat : 2; /* A/G [4:3] */
+ unsigned pctl_v_hole : 1; /* A/G [5] */
+ unsigned pctl_v_mwin : 1; /* A/G [6] */
+ unsigned pctl_v_arbena : 1; /* A/G [7] */
+ unsigned pctl_v_prigrp : 8; /* A/G [15:8] */
+ unsigned pctl_v_ppri : 1; /* A/G [16] */
+ unsigned pctl_v_pcispd66 : 1; /* A/G [17] */
+ unsigned pctl_v_cngstlt : 4; /* A/G [21:18] */
+ unsigned pctl_v_ptpdesten : 8; /* A/G [29:22] */
+ unsigned pctl_v_dpcen : 1; /* A/G [30] */
+ unsigned pctl_v_apcen : 1; /* A/G [31] */
+ unsigned pctl_v_dcrtv : 2; /* A/G [33:32] */
+ unsigned pctl_v_en_stepping :1; /* A/G [34] */
+ unsigned apctl_v_rsvd1 : 17; /* A [51:35] */
+ unsigned apctl_v_agp_rate : 2; /* A [53:52] */
+ unsigned apctl_v_agp_sba_en : 1; /* A [54] */
+ unsigned apctl_v_agp_en : 1; /* A [55] */
+ unsigned apctl_v_rsvd2 : 1; /* A [56] */
+ unsigned apctl_v_agp_present : 1; /* A [57] */
+ unsigned apctl_v_agp_hp_rd : 3; /* A [60:58] */
+ unsigned apctl_v_agp_lp_rd : 3; /* A [63:61] */
+ } pctl_r_bits;
+ unsigned int pctl_l_whole [2];
+ unsigned long pctl_q_whole;
+};
+
+/*
+ * SERROR / SERREN / SERRSET
+ */
+union TPAchipSERR {
+ struct {
+ unsigned serr_v_lost_uecc : 1; /* [0] */
+ unsigned serr_v_uecc : 1; /* [1] */
+ unsigned serr_v_cre : 1; /* [2] */
+ unsigned serr_v_nxio : 1; /* [3] */
+ unsigned serr_v_lost_cre : 1; /* [4] */
+ unsigned serr_v_rsvd0 : 10; /* [14:5] */
+ unsigned serr_v_addr : 32; /* [46:15] */
+ unsigned serr_v_rsvd1 : 5; /* [51:47] */
+ unsigned serr_v_source : 2; /* [53:52] */
+ unsigned serr_v_cmd : 2; /* [55:54] */
+ unsigned serr_v_syn : 8; /* [63:56] */
+ } serr_r_bits;
+ unsigned int serr_l_whole[2];
+ unsigned long serr_q_whole;
+};
+
+/*
+ * GPERROR / APERROR / GPERREN / APERREN / GPERRSET / APERRSET
+ */
+union TPAchipPERR {
+ struct {
+ unsigned long perr_v_lost : 1; /* [0] */
+ unsigned long perr_v_serr : 1; /* [1] */
+ unsigned long perr_v_perr : 1; /* [2] */
+ unsigned long perr_v_dcrto : 1; /* [3] */
+ unsigned long perr_v_sge : 1; /* [4] */
+ unsigned long perr_v_ape : 1; /* [5] */
+ unsigned long perr_v_ta : 1; /* [6] */
+ unsigned long perr_v_dpe : 1; /* [7] */
+ unsigned long perr_v_nds : 1; /* [8] */
+ unsigned long perr_v_iptpr : 1; /* [9] */
+ unsigned long perr_v_iptpw : 1; /* [10] */
+ unsigned long perr_v_rsvd0 : 3; /* [13:11] */
+ unsigned long perr_v_addr : 33; /* [46:14] */
+ unsigned long perr_v_dac : 1; /* [47] */
+ unsigned long perr_v_mwin : 1; /* [48] */
+ unsigned long perr_v_rsvd1 : 3; /* [51:49] */
+ unsigned long perr_v_cmd : 4; /* [55:52] */
+ unsigned long perr_v_rsvd2 : 8; /* [63:56] */
+ } perr_r_bits;
+ unsigned int perr_l_whole[2];
+ unsigned long perr_q_whole;
+};
+
+/*
+ * AGPERROR / AGPERREN / AGPERRSET
+ */
+union TPAchipAGPERR {
+ struct {
+ unsigned agperr_v_lost : 1; /* [0] */
+ unsigned agperr_v_lpqfull : 1; /* [1] */
+ unsigned apgerr_v_hpqfull : 1; /* [2] */
+ unsigned agperr_v_rescmd : 1; /* [3] */
+ unsigned agperr_v_ipte : 1; /* [4] */
+ unsigned agperr_v_ptp : 1; /* [5] */
+ unsigned agperr_v_nowindow : 1; /* [6] */
+ unsigned agperr_v_rsvd0 : 8; /* [14:7] */
+ unsigned agperr_v_addr : 32; /* [46:15] */
+ unsigned agperr_v_rsvd1 : 1; /* [47] */
+ unsigned agperr_v_dac : 1; /* [48] */
+ unsigned agperr_v_mwin : 1; /* [49] */
+ unsigned agperr_v_cmd : 3; /* [52:50] */
+ unsigned agperr_v_length : 6; /* [58:53] */
+ unsigned agperr_v_fence : 1; /* [59] */
+ unsigned agperr_v_rsvd2 : 4; /* [63:60] */
+ } agperr_r_bits;
+ unsigned int agperr_l_whole[2];
+ unsigned long agperr_q_whole;
+};
+/*
+ * Memory spaces:
+ * Hose numbers are assigned as follows:
+ * 0 - pachip 0 / G Port
+ * 1 - pachip 1 / G Port
+ * 2 - pachip 0 / A Port
+ * 3 - pachip 1 / A Port
+ */
+#define TITAN_HOSE_SHIFT (33)
+#define TITAN_HOSE(h) (((unsigned long)(h)) << TITAN_HOSE_SHIFT)
+#define TITAN_BASE (IDENT_ADDR + TI_BIAS)
+#define TITAN_MEM(h) (TITAN_BASE+TITAN_HOSE(h)+0x000000000UL)
+#define _TITAN_IACK_SC(h) (TITAN_BASE+TITAN_HOSE(h)+0x1F8000000UL)
+#define TITAN_IO(h) (TITAN_BASE+TITAN_HOSE(h)+0x1FC000000UL)
+#define TITAN_CONF(h) (TITAN_BASE+TITAN_HOSE(h)+0x1FE000000UL)
+
+#define TITAN_HOSE_MASK TITAN_HOSE(3)
+#define TITAN_IACK_SC _TITAN_IACK_SC(0) /* hack! */
+
+/*
+ * The canonical non-remaped I/O and MEM addresses have these values
+ * subtracted out. This is arranged so that folks manipulating ISA
+ * devices can use their familiar numbers and have them map to bus 0.
+ */
+
+#define TITAN_IO_BIAS TITAN_IO(0)
+#define TITAN_MEM_BIAS TITAN_MEM(0)
+
+/* The IO address space is larger than 0xffff */
+#define TITAN_IO_SPACE (TITAN_CONF(0) - TITAN_IO(0))
+
+/* TIG Space */
+#define TITAN_TIG_SPACE (TITAN_BASE + 0x100000000UL)
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses. */
+/* ??? Just a guess. Ought to confirm it hasn't been moved. */
+#define TITAN_DAC_OFFSET (1UL << 40)
+
+/*
+ * Data structure for handling TITAN machine checks:
+ */
+#define SCB_Q_SYSERR 0x620
+#define SCB_Q_PROCERR 0x630
+#define SCB_Q_SYSMCHK 0x660
+#define SCB_Q_PROCMCHK 0x670
+#define SCB_Q_SYSEVENT 0x680 /* environmental / system management */
+struct el_TITAN_sysdata_mcheck {
+ u64 summary; /* 0x00 */
+ u64 c_dirx; /* 0x08 */
+ u64 c_misc; /* 0x10 */
+ u64 p0_serror; /* 0x18 */
+ u64 p0_gperror; /* 0x20 */
+ u64 p0_aperror; /* 0x28 */
+ u64 p0_agperror;/* 0x30 */
+ u64 p1_serror; /* 0x38 */
+ u64 p1_gperror; /* 0x40 */
+ u64 p1_aperror; /* 0x48 */
+ u64 p1_agperror;/* 0x50 */
+};
+
+/*
+ * System area for a privateer 680 environmental/system management mcheck
+ */
+struct el_PRIVATEER_envdata_mcheck {
+ u64 summary; /* 0x00 */
+ u64 c_dirx; /* 0x08 */
+ u64 smir; /* 0x10 */
+ u64 cpuir; /* 0x18 */
+ u64 psir; /* 0x20 */
+ u64 fault; /* 0x28 */
+ u64 sys_doors; /* 0x30 */
+ u64 temp_warn; /* 0x38 */
+ u64 fan_ctrl; /* 0x40 */
+ u64 code; /* 0x48 */
+ u64 reserved; /* 0x50 */
+};
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * TITAN, a 21??? PCI/memory support chipset for the EV6 (21264)
+ * can only use linear accesses to get at PCI/AGP memory and I/O spaces.
+ */
+
+/*
+ * Memory functions. all accesses are done through linear space.
+ */
+extern void __iomem *titan_ioportmap(unsigned long addr);
+extern void __iomem *titan_ioremap(unsigned long addr, unsigned long size);
+extern void titan_iounmap(volatile void __iomem *addr);
+
+__EXTERN_INLINE int titan_is_ioaddr(unsigned long addr)
+{
+ return addr >= TITAN_BASE;
+}
+
+extern int titan_is_mmio(const volatile void __iomem *addr);
+
+#undef __IO_PREFIX
+#define __IO_PREFIX titan
+#define titan_trivial_rw_bw 1
+#define titan_trivial_rw_lq 1
+#define titan_trivial_io_bw 1
+#define titan_trivial_io_lq 1
+#define titan_trivial_iounmap 0
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_TITAN__H__ */
diff --git a/arch/alpha/include/asm/core_tsunami.h b/arch/alpha/include/asm/core_tsunami.h
new file mode 100644
index 0000000000..3391e95754
--- /dev/null
+++ b/arch/alpha/include/asm/core_tsunami.h
@@ -0,0 +1,335 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_TSUNAMI__H__
+#define __ALPHA_TSUNAMI__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * TSUNAMI/TYPHOON are the internal names for the core logic chipset which
+ * provides memory controller and PCI access for the 21264 based systems.
+ *
+ * This file is based on:
+ *
+ * Tsunami System Programmers Manual
+ * Preliminary, Chapters 2-5
+ *
+ */
+
+/* XXX: Do we need to conditionalize on this? */
+#ifdef USE_48_BIT_KSEG
+#define TS_BIAS 0x80000000000UL
+#else
+#define TS_BIAS 0x10000000000UL
+#endif
+
+/*
+ * CChip, DChip, and PChip registers
+ */
+
+typedef struct {
+ volatile unsigned long csr __attribute__((aligned(64)));
+} tsunami_64;
+
+typedef struct {
+ tsunami_64 csc;
+ tsunami_64 mtr;
+ tsunami_64 misc;
+ tsunami_64 mpd;
+ tsunami_64 aar0;
+ tsunami_64 aar1;
+ tsunami_64 aar2;
+ tsunami_64 aar3;
+ tsunami_64 dim0;
+ tsunami_64 dim1;
+ tsunami_64 dir0;
+ tsunami_64 dir1;
+ tsunami_64 drir;
+ tsunami_64 prben;
+ tsunami_64 iic; /* a.k.a. iic0 */
+ tsunami_64 wdr; /* a.k.a. iic1 */
+ tsunami_64 mpr0;
+ tsunami_64 mpr1;
+ tsunami_64 mpr2;
+ tsunami_64 mpr3;
+ tsunami_64 mctl;
+ tsunami_64 __pad1;
+ tsunami_64 ttr;
+ tsunami_64 tdr;
+ tsunami_64 dim2;
+ tsunami_64 dim3;
+ tsunami_64 dir2;
+ tsunami_64 dir3;
+ tsunami_64 iic2;
+ tsunami_64 iic3;
+} tsunami_cchip;
+
+typedef struct {
+ tsunami_64 dsc;
+ tsunami_64 str;
+ tsunami_64 drev;
+} tsunami_dchip;
+
+typedef struct {
+ tsunami_64 wsba[4];
+ tsunami_64 wsm[4];
+ tsunami_64 tba[4];
+ tsunami_64 pctl;
+ tsunami_64 plat;
+ tsunami_64 reserved;
+ tsunami_64 perror;
+ tsunami_64 perrmask;
+ tsunami_64 perrset;
+ tsunami_64 tlbiv;
+ tsunami_64 tlbia;
+ tsunami_64 pmonctl;
+ tsunami_64 pmoncnt;
+} tsunami_pchip;
+
+#define TSUNAMI_cchip ((tsunami_cchip *)(IDENT_ADDR+TS_BIAS+0x1A0000000UL))
+#define TSUNAMI_dchip ((tsunami_dchip *)(IDENT_ADDR+TS_BIAS+0x1B0000800UL))
+#define TSUNAMI_pchip0 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x180000000UL))
+#define TSUNAMI_pchip1 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x380000000UL))
+extern int TSUNAMI_bootcpu;
+
+/*
+ * TSUNAMI Pchip Error register.
+ */
+
+#define perror_m_lost 0x1
+#define perror_m_serr 0x2
+#define perror_m_perr 0x4
+#define perror_m_dcrto 0x8
+#define perror_m_sge 0x10
+#define perror_m_ape 0x20
+#define perror_m_ta 0x40
+#define perror_m_rdpe 0x80
+#define perror_m_nds 0x100
+#define perror_m_rto 0x200
+#define perror_m_uecc 0x400
+#define perror_m_cre 0x800
+#define perror_m_addrl 0xFFFFFFFF0000UL
+#define perror_m_addrh 0x7000000000000UL
+#define perror_m_cmd 0xF0000000000000UL
+#define perror_m_syn 0xFF00000000000000UL
+union TPchipPERROR {
+ struct {
+ unsigned int perror_v_lost : 1;
+ unsigned perror_v_serr : 1;
+ unsigned perror_v_perr : 1;
+ unsigned perror_v_dcrto : 1;
+ unsigned perror_v_sge : 1;
+ unsigned perror_v_ape : 1;
+ unsigned perror_v_ta : 1;
+ unsigned perror_v_rdpe : 1;
+ unsigned perror_v_nds : 1;
+ unsigned perror_v_rto : 1;
+ unsigned perror_v_uecc : 1;
+ unsigned perror_v_cre : 1;
+ unsigned perror_v_rsvd1 : 4;
+ unsigned perror_v_addrl : 32;
+ unsigned perror_v_addrh : 3;
+ unsigned perror_v_rsvd2 : 1;
+ unsigned perror_v_cmd : 4;
+ unsigned perror_v_syn : 8;
+ } perror_r_bits;
+ int perror_q_whole [2];
+};
+
+/*
+ * TSUNAMI Pchip Window Space Base Address register.
+ */
+#define wsba_m_ena 0x1
+#define wsba_m_sg 0x2
+#define wsba_m_ptp 0x4
+#define wsba_m_addr 0xFFF00000
+#define wmask_k_sz1gb 0x3FF00000
+union TPchipWSBA {
+ struct {
+ unsigned wsba_v_ena : 1;
+ unsigned wsba_v_sg : 1;
+ unsigned wsba_v_ptp : 1;
+ unsigned wsba_v_rsvd1 : 17;
+ unsigned wsba_v_addr : 12;
+ unsigned wsba_v_rsvd2 : 32;
+ } wsba_r_bits;
+ int wsba_q_whole [2];
+};
+
+/*
+ * TSUNAMI Pchip Control Register
+ */
+#define pctl_m_fdsc 0x1
+#define pctl_m_fbtb 0x2
+#define pctl_m_thdis 0x4
+#define pctl_m_chaindis 0x8
+#define pctl_m_tgtlat 0x10
+#define pctl_m_hole 0x20
+#define pctl_m_mwin 0x40
+#define pctl_m_arbena 0x80
+#define pctl_m_prigrp 0x7F00
+#define pctl_m_ppri 0x8000
+#define pctl_m_rsvd1 0x30000
+#define pctl_m_eccen 0x40000
+#define pctl_m_padm 0x80000
+#define pctl_m_cdqmax 0xF00000
+#define pctl_m_rev 0xFF000000
+#define pctl_m_crqmax 0xF00000000UL
+#define pctl_m_ptpmax 0xF000000000UL
+#define pctl_m_pclkx 0x30000000000UL
+#define pctl_m_fdsdis 0x40000000000UL
+#define pctl_m_fdwdis 0x80000000000UL
+#define pctl_m_ptevrfy 0x100000000000UL
+#define pctl_m_rpp 0x200000000000UL
+#define pctl_m_pid 0xC00000000000UL
+#define pctl_m_rsvd2 0xFFFF000000000000UL
+
+union TPchipPCTL {
+ struct {
+ unsigned pctl_v_fdsc : 1;
+ unsigned pctl_v_fbtb : 1;
+ unsigned pctl_v_thdis : 1;
+ unsigned pctl_v_chaindis : 1;
+ unsigned pctl_v_tgtlat : 1;
+ unsigned pctl_v_hole : 1;
+ unsigned pctl_v_mwin : 1;
+ unsigned pctl_v_arbena : 1;
+ unsigned pctl_v_prigrp : 7;
+ unsigned pctl_v_ppri : 1;
+ unsigned pctl_v_rsvd1 : 2;
+ unsigned pctl_v_eccen : 1;
+ unsigned pctl_v_padm : 1;
+ unsigned pctl_v_cdqmax : 4;
+ unsigned pctl_v_rev : 8;
+ unsigned pctl_v_crqmax : 4;
+ unsigned pctl_v_ptpmax : 4;
+ unsigned pctl_v_pclkx : 2;
+ unsigned pctl_v_fdsdis : 1;
+ unsigned pctl_v_fdwdis : 1;
+ unsigned pctl_v_ptevrfy : 1;
+ unsigned pctl_v_rpp : 1;
+ unsigned pctl_v_pid : 2;
+ unsigned pctl_v_rsvd2 : 16;
+ } pctl_r_bits;
+ int pctl_q_whole [2];
+};
+
+/*
+ * TSUNAMI Pchip Error Mask Register.
+ */
+#define perrmask_m_lost 0x1
+#define perrmask_m_serr 0x2
+#define perrmask_m_perr 0x4
+#define perrmask_m_dcrto 0x8
+#define perrmask_m_sge 0x10
+#define perrmask_m_ape 0x20
+#define perrmask_m_ta 0x40
+#define perrmask_m_rdpe 0x80
+#define perrmask_m_nds 0x100
+#define perrmask_m_rto 0x200
+#define perrmask_m_uecc 0x400
+#define perrmask_m_cre 0x800
+#define perrmask_m_rsvd 0xFFFFFFFFFFFFF000UL
+union TPchipPERRMASK {
+ struct {
+ unsigned int perrmask_v_lost : 1;
+ unsigned perrmask_v_serr : 1;
+ unsigned perrmask_v_perr : 1;
+ unsigned perrmask_v_dcrto : 1;
+ unsigned perrmask_v_sge : 1;
+ unsigned perrmask_v_ape : 1;
+ unsigned perrmask_v_ta : 1;
+ unsigned perrmask_v_rdpe : 1;
+ unsigned perrmask_v_nds : 1;
+ unsigned perrmask_v_rto : 1;
+ unsigned perrmask_v_uecc : 1;
+ unsigned perrmask_v_cre : 1;
+ unsigned perrmask_v_rsvd1 : 20;
+ unsigned perrmask_v_rsvd2 : 32;
+ } perrmask_r_bits;
+ int perrmask_q_whole [2];
+};
+
+/*
+ * Memory spaces:
+ */
+#define TSUNAMI_HOSE(h) (((unsigned long)(h)) << 33)
+#define TSUNAMI_BASE (IDENT_ADDR + TS_BIAS)
+
+#define TSUNAMI_MEM(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x000000000UL)
+#define _TSUNAMI_IACK_SC(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1F8000000UL)
+#define TSUNAMI_IO(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FC000000UL)
+#define TSUNAMI_CONF(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FE000000UL)
+
+#define TSUNAMI_IACK_SC _TSUNAMI_IACK_SC(0) /* hack! */
+
+
+/*
+ * The canonical non-remaped I/O and MEM addresses have these values
+ * subtracted out. This is arranged so that folks manipulating ISA
+ * devices can use their familiar numbers and have them map to bus 0.
+ */
+
+#define TSUNAMI_IO_BIAS TSUNAMI_IO(0)
+#define TSUNAMI_MEM_BIAS TSUNAMI_MEM(0)
+
+/* The IO address space is larger than 0xffff */
+#define TSUNAMI_IO_SPACE (TSUNAMI_CONF(0) - TSUNAMI_IO(0))
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses. */
+#define TSUNAMI_DAC_OFFSET (1UL << 40)
+
+/*
+ * Data structure for handling TSUNAMI machine checks:
+ */
+struct el_TSUNAMI_sysdata_mcheck {
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * TSUNAMI, the 21??? PCI/memory support chipset for the EV6 (21264)
+ * can only use linear accesses to get at PCI memory and I/O spaces.
+ */
+
+/*
+ * Memory functions. all accesses are done through linear space.
+ */
+extern void __iomem *tsunami_ioportmap(unsigned long addr);
+extern void __iomem *tsunami_ioremap(unsigned long addr, unsigned long size);
+__EXTERN_INLINE int tsunami_is_ioaddr(unsigned long addr)
+{
+ return addr >= TSUNAMI_BASE;
+}
+
+__EXTERN_INLINE int tsunami_is_mmio(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ return (addr & 0x100000000UL) == 0;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX tsunami
+#define tsunami_trivial_rw_bw 1
+#define tsunami_trivial_rw_lq 1
+#define tsunami_trivial_io_bw 1
+#define tsunami_trivial_io_lq 1
+#define tsunami_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_TSUNAMI__H__ */
diff --git a/arch/alpha/include/asm/core_wildfire.h b/arch/alpha/include/asm/core_wildfire.h
new file mode 100644
index 0000000000..5d1b37f412
--- /dev/null
+++ b/arch/alpha/include/asm/core_wildfire.h
@@ -0,0 +1,319 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_WILDFIRE__H__
+#define __ALPHA_WILDFIRE__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+#define WILDFIRE_MAX_QBB 8 /* more than 8 requires other mods */
+#define WILDFIRE_PCA_PER_QBB 4
+#define WILDFIRE_IRQ_PER_PCA 64
+
+#define WILDFIRE_NR_IRQS \
+ (WILDFIRE_MAX_QBB * WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
+
+extern unsigned char wildfire_hard_qbb_map[WILDFIRE_MAX_QBB];
+extern unsigned char wildfire_soft_qbb_map[WILDFIRE_MAX_QBB];
+#define QBB_MAP_EMPTY 0xff
+
+extern unsigned long wildfire_hard_qbb_mask;
+extern unsigned long wildfire_soft_qbb_mask;
+extern unsigned long wildfire_gp_mask;
+extern unsigned long wildfire_hs_mask;
+extern unsigned long wildfire_iop_mask;
+extern unsigned long wildfire_ior_mask;
+extern unsigned long wildfire_pca_mask;
+extern unsigned long wildfire_cpu_mask;
+extern unsigned long wildfire_mem_mask;
+
+#define WILDFIRE_QBB_EXISTS(qbbno) (wildfire_soft_qbb_mask & (1 << (qbbno)))
+
+#define WILDFIRE_MEM_EXISTS(qbbno) (wildfire_mem_mask & (0xf << ((qbbno) << 2)))
+
+#define WILDFIRE_PCA_EXISTS(qbbno, pcano) \
+ (wildfire_pca_mask & (1 << (((qbbno) << 2) + (pcano))))
+
+typedef struct {
+ volatile unsigned long csr __attribute__((aligned(64)));
+} wildfire_64;
+
+typedef struct {
+ volatile unsigned long csr __attribute__((aligned(256)));
+} wildfire_256;
+
+typedef struct {
+ volatile unsigned long csr __attribute__((aligned(2048)));
+} wildfire_2k;
+
+typedef struct {
+ wildfire_64 qsd_whami;
+ wildfire_64 qsd_rev;
+ wildfire_64 qsd_port_present;
+ wildfire_64 qsd_port_active;
+ wildfire_64 qsd_fault_ena;
+ wildfire_64 qsd_cpu_int_ena;
+ wildfire_64 qsd_mem_config;
+ wildfire_64 qsd_err_sum;
+ wildfire_64 ce_sum[4];
+ wildfire_64 dev_init[4];
+ wildfire_64 it_int[4];
+ wildfire_64 ip_int[4];
+ wildfire_64 uce_sum[4];
+ wildfire_64 se_sum__non_dev_int[4];
+ wildfire_64 scratch[4];
+ wildfire_64 qsd_timer;
+ wildfire_64 qsd_diag;
+} wildfire_qsd;
+
+typedef struct {
+ wildfire_256 qsd_whami;
+ wildfire_256 __pad1;
+ wildfire_256 ce_sum;
+ wildfire_256 dev_init;
+ wildfire_256 it_int;
+ wildfire_256 ip_int;
+ wildfire_256 uce_sum;
+ wildfire_256 se_sum;
+} wildfire_fast_qsd;
+
+typedef struct {
+ wildfire_2k qsa_qbb_id;
+ wildfire_2k __pad1;
+ wildfire_2k qsa_port_ena;
+ wildfire_2k qsa_scratch;
+ wildfire_2k qsa_config[5];
+ wildfire_2k qsa_ref_int;
+ wildfire_2k qsa_qbb_pop[2];
+ wildfire_2k qsa_dtag_fc;
+ wildfire_2k __pad2[3];
+ wildfire_2k qsa_diag;
+ wildfire_2k qsa_diag_lock[4];
+ wildfire_2k __pad3[11];
+ wildfire_2k qsa_cpu_err_sum;
+ wildfire_2k qsa_misc_err_sum;
+ wildfire_2k qsa_tmo_err_sum;
+ wildfire_2k qsa_err_ena;
+ wildfire_2k qsa_tmo_config;
+ wildfire_2k qsa_ill_cmd_err_sum;
+ wildfire_2k __pad4[26];
+ wildfire_2k qsa_busy_mask;
+ wildfire_2k qsa_arr_valid;
+ wildfire_2k __pad5[2];
+ wildfire_2k qsa_port_map[4];
+ wildfire_2k qsa_arr_addr[8];
+ wildfire_2k qsa_arr_mask[8];
+} wildfire_qsa;
+
+typedef struct {
+ wildfire_64 ioa_config;
+ wildfire_64 iod_config;
+ wildfire_64 iop_switch_credits;
+ wildfire_64 __pad1;
+ wildfire_64 iop_hose_credits;
+ wildfire_64 __pad2[11];
+ struct {
+ wildfire_64 __pad3;
+ wildfire_64 init;
+ } iop_hose[4];
+ wildfire_64 ioa_hose_0_ctrl;
+ wildfire_64 iod_hose_0_ctrl;
+ wildfire_64 ioa_hose_1_ctrl;
+ wildfire_64 iod_hose_1_ctrl;
+ wildfire_64 ioa_hose_2_ctrl;
+ wildfire_64 iod_hose_2_ctrl;
+ wildfire_64 ioa_hose_3_ctrl;
+ wildfire_64 iod_hose_3_ctrl;
+ struct {
+ wildfire_64 target;
+ wildfire_64 __pad4;
+ } iop_dev_int[4];
+
+ wildfire_64 iop_err_int_target;
+ wildfire_64 __pad5[7];
+ wildfire_64 iop_qbb_err_sum;
+ wildfire_64 __pad6;
+ wildfire_64 iop_qbb_se_sum;
+ wildfire_64 __pad7;
+ wildfire_64 ioa_err_sum;
+ wildfire_64 iod_err_sum;
+ wildfire_64 __pad8[4];
+ wildfire_64 ioa_diag_force_err;
+ wildfire_64 iod_diag_force_err;
+ wildfire_64 __pad9[4];
+ wildfire_64 iop_diag_send_err_int;
+ wildfire_64 __pad10[15];
+ wildfire_64 ioa_scratch;
+ wildfire_64 iod_scratch;
+} wildfire_iop;
+
+typedef struct {
+ wildfire_2k gpa_qbb_map[4];
+ wildfire_2k gpa_mem_pop_map;
+ wildfire_2k gpa_scratch;
+ wildfire_2k gpa_diag;
+ wildfire_2k gpa_config_0;
+ wildfire_2k __pad1;
+ wildfire_2k gpa_init_id;
+ wildfire_2k gpa_config_2;
+ /* not complete */
+} wildfire_gp;
+
+typedef struct {
+ wildfire_64 pca_what_am_i;
+ wildfire_64 pca_err_sum;
+ wildfire_64 pca_diag_force_err;
+ wildfire_64 pca_diag_send_err_int;
+ wildfire_64 pca_hose_credits;
+ wildfire_64 pca_scratch;
+ wildfire_64 pca_micro_addr;
+ wildfire_64 pca_micro_data;
+ wildfire_64 pca_pend_int;
+ wildfire_64 pca_sent_int;
+ wildfire_64 __pad1;
+ wildfire_64 pca_stdio_edge_level;
+ wildfire_64 __pad2[52];
+ struct {
+ wildfire_64 target;
+ wildfire_64 enable;
+ } pca_int[4];
+ wildfire_64 __pad3[56];
+ wildfire_64 pca_alt_sent_int[32];
+} wildfire_pca;
+
+typedef struct {
+ wildfire_64 ne_what_am_i;
+ /* not complete */
+} wildfire_ne;
+
+typedef struct {
+ wildfire_64 fe_what_am_i;
+ /* not complete */
+} wildfire_fe;
+
+typedef struct {
+ wildfire_64 pci_io_addr_ext;
+ wildfire_64 pci_ctrl;
+ wildfire_64 pci_err_sum;
+ wildfire_64 pci_err_addr;
+ wildfire_64 pci_stall_cnt;
+ wildfire_64 pci_iack_special;
+ wildfire_64 __pad1[2];
+ wildfire_64 pci_pend_int;
+ wildfire_64 pci_sent_int;
+ wildfire_64 __pad2[54];
+ struct {
+ wildfire_64 wbase;
+ wildfire_64 wmask;
+ wildfire_64 tbase;
+ } pci_window[4];
+ wildfire_64 pci_flush_tlb;
+ wildfire_64 pci_perf_mon;
+} wildfire_pci;
+
+#define WILDFIRE_ENTITY_SHIFT 18
+
+#define WILDFIRE_GP_ENTITY (0x10UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_IOP_ENTITY (0x08UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_QSA_ENTITY (0x04UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_QSD_ENTITY_SLOW (0x05UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_QSD_ENTITY_FAST (0x01UL << WILDFIRE_ENTITY_SHIFT)
+
+#define WILDFIRE_PCA_ENTITY(pca) ((0xc|(pca))<<WILDFIRE_ENTITY_SHIFT)
+
+#define WILDFIRE_BASE (IDENT_ADDR | (1UL << 40))
+
+#define WILDFIRE_QBB_MASK 0x0fUL /* for now, only 4 bits/16 QBBs */
+
+#define WILDFIRE_QBB(q) ((~((long)(q)) & WILDFIRE_QBB_MASK) << 36)
+#define WILDFIRE_HOSE(h) ((long)(h) << 33)
+
+#define WILDFIRE_QBB_IO(q) (WILDFIRE_BASE | WILDFIRE_QBB(q))
+#define WILDFIRE_QBB_HOSE(q,h) (WILDFIRE_QBB_IO(q) | WILDFIRE_HOSE(h))
+
+#define WILDFIRE_MEM(q,h) (WILDFIRE_QBB_HOSE(q,h) | 0x000000000UL)
+#define WILDFIRE_CONF(q,h) (WILDFIRE_QBB_HOSE(q,h) | 0x1FE000000UL)
+#define WILDFIRE_IO(q,h) (WILDFIRE_QBB_HOSE(q,h) | 0x1FF000000UL)
+
+#define WILDFIRE_qsd(q) \
+ ((wildfire_qsd *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSD_ENTITY_SLOW|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_fast_qsd() \
+ ((wildfire_fast_qsd *)(WILDFIRE_QBB_IO(0)|WILDFIRE_QSD_ENTITY_FAST|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_qsa(q) \
+ ((wildfire_qsa *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSA_ENTITY|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_iop(q) \
+ ((wildfire_iop *)(WILDFIRE_QBB_IO(q)|WILDFIRE_IOP_ENTITY|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_gp(q) \
+ ((wildfire_gp *)(WILDFIRE_QBB_IO(q)|WILDFIRE_GP_ENTITY|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_pca(q,pca) \
+ ((wildfire_pca *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_ne(q,pca) \
+ ((wildfire_ne *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(1UL<<16)))
+
+#define WILDFIRE_fe(q,pca) \
+ ((wildfire_fe *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(3UL<<15)))
+
+#define WILDFIRE_pci(q,h) \
+ ((wildfire_pci *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(((h)&6)>>1)|((((h)&1)|2)<<16)|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_IO_BIAS WILDFIRE_IO(0,0)
+#define WILDFIRE_MEM_BIAS WILDFIRE_MEM(0,0) /* ??? */
+
+/* The IO address space is larger than 0xffff */
+#define WILDFIRE_IO_SPACE (8UL*1024*1024)
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * Memory functions. all accesses are done through linear space.
+ */
+
+__EXTERN_INLINE void __iomem *wildfire_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)(addr + WILDFIRE_IO_BIAS);
+}
+
+__EXTERN_INLINE void __iomem *wildfire_ioremap(unsigned long addr,
+ unsigned long size)
+{
+ return (void __iomem *)(addr + WILDFIRE_MEM_BIAS);
+}
+
+__EXTERN_INLINE int wildfire_is_ioaddr(unsigned long addr)
+{
+ return addr >= WILDFIRE_BASE;
+}
+
+__EXTERN_INLINE int wildfire_is_mmio(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long)xaddr;
+ return (addr & 0x100000000UL) == 0;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX wildfire
+#define wildfire_trivial_rw_bw 1
+#define wildfire_trivial_rw_lq 1
+#define wildfire_trivial_io_bw 1
+#define wildfire_trivial_io_lq 1
+#define wildfire_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_WILDFIRE__H__ */
diff --git a/arch/alpha/include/asm/delay.h b/arch/alpha/include/asm/delay.h
new file mode 100644
index 0000000000..868aa61aba
--- /dev/null
+++ b/arch/alpha/include/asm/delay.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_DELAY_H
+#define __ALPHA_DELAY_H
+
+extern void __delay(int loops);
+extern void udelay(unsigned long usecs);
+
+extern void ndelay(unsigned long nsecs);
+#define ndelay ndelay
+
+#endif /* defined(__ALPHA_DELAY_H) */
diff --git a/arch/alpha/include/asm/device.h b/arch/alpha/include/asm/device.h
new file mode 100644
index 0000000000..9ca75a7db2
--- /dev/null
+++ b/arch/alpha/include/asm/device.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Arch specific extensions to struct device
+ */
+#include <asm-generic/device.h>
+
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
new file mode 100644
index 0000000000..6ce7e20416
--- /dev/null
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_DMA_MAPPING_H
+#define _ALPHA_DMA_MAPPING_H
+
+extern const struct dma_map_ops alpha_pci_ops;
+
+static inline const struct dma_map_ops *get_arch_dma_ops(void)
+{
+#ifdef CONFIG_ALPHA_JENSEN
+ return NULL;
+#else
+ return &alpha_pci_ops;
+#endif
+}
+
+#endif /* _ALPHA_DMA_MAPPING_H */
diff --git a/arch/alpha/include/asm/dma.h b/arch/alpha/include/asm/dma.h
new file mode 100644
index 0000000000..a04d76b960
--- /dev/null
+++ b/arch/alpha/include/asm/dma.h
@@ -0,0 +1,368 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/dma.h
+ *
+ * This is essentially the same as the i386 DMA stuff, as the AlphaPCs
+ * use ISA-compatible dma. The only extension is support for high-page
+ * registers that allow to set the top 8 bits of a 32-bit DMA address.
+ * This register should be written last when setting up a DMA address
+ * as this will also enable DMA across 64 KB boundaries.
+ */
+
+/* $Id: dma.h,v 1.7 1992/12/14 00:29:34 root Exp root $
+ * linux/include/asm/dma.h: Defines for using and allocating dma channels.
+ * Written by Hennus Bergman, 1992.
+ * High DMA channel support & info by Hannu Savolainen
+ * and John Boyd, Nov. 1992.
+ */
+
+#ifndef _ASM_DMA_H
+#define _ASM_DMA_H
+
+#include <linux/spinlock.h>
+#include <asm/io.h>
+
+#define dma_outb outb
+#define dma_inb inb
+
+/*
+ * NOTES about DMA transfers:
+ *
+ * controller 1: channels 0-3, byte operations, ports 00-1F
+ * controller 2: channels 4-7, word operations, ports C0-DF
+ *
+ * - ALL registers are 8 bits only, regardless of transfer size
+ * - channel 4 is not used - cascades 1 into 2.
+ * - channels 0-3 are byte - addresses/counts are for physical bytes
+ * - channels 5-7 are word - addresses/counts are for physical words
+ * - transfers must not cross physical 64K (0-3) or 128K (5-7) boundaries
+ * - transfer count loaded to registers is 1 less than actual count
+ * - controller 2 offsets are all even (2x offsets for controller 1)
+ * - page registers for 5-7 don't use data bit 0, represent 128K pages
+ * - page registers for 0-3 use bit 0, represent 64K pages
+ *
+ * DMA transfers are limited to the lower 16MB of _physical_ memory.
+ * Note that addresses loaded into registers must be _physical_ addresses,
+ * not logical addresses (which may differ if paging is active).
+ *
+ * Address mapping for channels 0-3:
+ *
+ * A23 ... A16 A15 ... A8 A7 ... A0 (Physical addresses)
+ * | ... | | ... | | ... |
+ * | ... | | ... | | ... |
+ * | ... | | ... | | ... |
+ * P7 ... P0 A7 ... A0 A7 ... A0
+ * | Page | Addr MSB | Addr LSB | (DMA registers)
+ *
+ * Address mapping for channels 5-7:
+ *
+ * A23 ... A17 A16 A15 ... A9 A8 A7 ... A1 A0 (Physical addresses)
+ * | ... | \ \ ... \ \ \ ... \ \
+ * | ... | \ \ ... \ \ \ ... \ (not used)
+ * | ... | \ \ ... \ \ \ ... \
+ * P7 ... P1 (0) A7 A6 ... A0 A7 A6 ... A0
+ * | Page | Addr MSB | Addr LSB | (DMA registers)
+ *
+ * Again, channels 5-7 transfer _physical_ words (16 bits), so addresses
+ * and counts _must_ be word-aligned (the lowest address bit is _ignored_ at
+ * the hardware level, so odd-byte transfers aren't possible).
+ *
+ * Transfer count (_not # bytes_) is limited to 64K, represented as actual
+ * count - 1 : 64K => 0xFFFF, 1 => 0x0000. Thus, count is always 1 or more,
+ * and up to 128K bytes may be transferred on channels 5-7 in one operation.
+ *
+ */
+
+#define MAX_DMA_CHANNELS 8
+
+/*
+ ISA DMA limitations on Alpha platforms,
+
+ These may be due to SIO (PCI<->ISA bridge) chipset limitation, or
+ just a wiring limit.
+*/
+
+/* The maximum address for ISA DMA transfer on Alpha XL, due to an
+ hardware SIO limitation, is 64MB.
+*/
+#define ALPHA_XL_MAX_ISA_DMA_ADDRESS 0x04000000UL
+
+/* The maximum address for ISA DMA transfer on RUFFIAN,
+ due to an hardware SIO limitation, is 16MB.
+*/
+#define ALPHA_RUFFIAN_MAX_ISA_DMA_ADDRESS 0x01000000UL
+
+/* The maximum address for ISA DMA transfer on SABLE, and some ALCORs,
+ due to an hardware SIO chip limitation, is 2GB.
+*/
+#define ALPHA_SABLE_MAX_ISA_DMA_ADDRESS 0x80000000UL
+#define ALPHA_ALCOR_MAX_ISA_DMA_ADDRESS 0x80000000UL
+
+/*
+ Maximum address for all the others is the complete 32-bit bus
+ address space.
+*/
+#define ALPHA_MAX_ISA_DMA_ADDRESS 0x100000000UL
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define MAX_ISA_DMA_ADDRESS (alpha_mv.max_isa_dma_address)
+#else
+# if defined(CONFIG_ALPHA_XL)
+# define MAX_ISA_DMA_ADDRESS ALPHA_XL_MAX_ISA_DMA_ADDRESS
+# elif defined(CONFIG_ALPHA_RUFFIAN)
+# define MAX_ISA_DMA_ADDRESS ALPHA_RUFFIAN_MAX_ISA_DMA_ADDRESS
+# elif defined(CONFIG_ALPHA_SABLE)
+# define MAX_ISA_DMA_ADDRESS ALPHA_SABLE_MAX_ISA_DMA_ADDRESS
+# elif defined(CONFIG_ALPHA_ALCOR)
+# define MAX_ISA_DMA_ADDRESS ALPHA_ALCOR_MAX_ISA_DMA_ADDRESS
+# else
+# define MAX_ISA_DMA_ADDRESS ALPHA_MAX_ISA_DMA_ADDRESS
+# endif
+#endif
+
+/* If we have the iommu, we don't have any address limitations on DMA.
+ Otherwise (Nautilus, RX164), we have to have 0-16 Mb DMA zone
+ like i386. */
+#define MAX_DMA_ADDRESS (alpha_mv.mv_pci_tbi ? \
+ ~0UL : IDENT_ADDR + 0x01000000)
+
+/* 8237 DMA controllers */
+#define IO_DMA1_BASE 0x00 /* 8 bit slave DMA, channels 0..3 */
+#define IO_DMA2_BASE 0xC0 /* 16 bit master DMA, ch 4(=slave input)..7 */
+
+/* DMA controller registers */
+#define DMA1_CMD_REG 0x08 /* command register (w) */
+#define DMA1_STAT_REG 0x08 /* status register (r) */
+#define DMA1_REQ_REG 0x09 /* request register (w) */
+#define DMA1_MASK_REG 0x0A /* single-channel mask (w) */
+#define DMA1_MODE_REG 0x0B /* mode register (w) */
+#define DMA1_CLEAR_FF_REG 0x0C /* clear pointer flip-flop (w) */
+#define DMA1_TEMP_REG 0x0D /* Temporary Register (r) */
+#define DMA1_RESET_REG 0x0D /* Master Clear (w) */
+#define DMA1_CLR_MASK_REG 0x0E /* Clear Mask */
+#define DMA1_MASK_ALL_REG 0x0F /* all-channels mask (w) */
+#define DMA1_EXT_MODE_REG (0x400 | DMA1_MODE_REG)
+
+#define DMA2_CMD_REG 0xD0 /* command register (w) */
+#define DMA2_STAT_REG 0xD0 /* status register (r) */
+#define DMA2_REQ_REG 0xD2 /* request register (w) */
+#define DMA2_MASK_REG 0xD4 /* single-channel mask (w) */
+#define DMA2_MODE_REG 0xD6 /* mode register (w) */
+#define DMA2_CLEAR_FF_REG 0xD8 /* clear pointer flip-flop (w) */
+#define DMA2_TEMP_REG 0xDA /* Temporary Register (r) */
+#define DMA2_RESET_REG 0xDA /* Master Clear (w) */
+#define DMA2_CLR_MASK_REG 0xDC /* Clear Mask */
+#define DMA2_MASK_ALL_REG 0xDE /* all-channels mask (w) */
+#define DMA2_EXT_MODE_REG (0x400 | DMA2_MODE_REG)
+
+#define DMA_ADDR_0 0x00 /* DMA address registers */
+#define DMA_ADDR_1 0x02
+#define DMA_ADDR_2 0x04
+#define DMA_ADDR_3 0x06
+#define DMA_ADDR_4 0xC0
+#define DMA_ADDR_5 0xC4
+#define DMA_ADDR_6 0xC8
+#define DMA_ADDR_7 0xCC
+
+#define DMA_CNT_0 0x01 /* DMA count registers */
+#define DMA_CNT_1 0x03
+#define DMA_CNT_2 0x05
+#define DMA_CNT_3 0x07
+#define DMA_CNT_4 0xC2
+#define DMA_CNT_5 0xC6
+#define DMA_CNT_6 0xCA
+#define DMA_CNT_7 0xCE
+
+#define DMA_PAGE_0 0x87 /* DMA page registers */
+#define DMA_PAGE_1 0x83
+#define DMA_PAGE_2 0x81
+#define DMA_PAGE_3 0x82
+#define DMA_PAGE_5 0x8B
+#define DMA_PAGE_6 0x89
+#define DMA_PAGE_7 0x8A
+
+#define DMA_HIPAGE_0 (0x400 | DMA_PAGE_0)
+#define DMA_HIPAGE_1 (0x400 | DMA_PAGE_1)
+#define DMA_HIPAGE_2 (0x400 | DMA_PAGE_2)
+#define DMA_HIPAGE_3 (0x400 | DMA_PAGE_3)
+#define DMA_HIPAGE_4 (0x400 | DMA_PAGE_4)
+#define DMA_HIPAGE_5 (0x400 | DMA_PAGE_5)
+#define DMA_HIPAGE_6 (0x400 | DMA_PAGE_6)
+#define DMA_HIPAGE_7 (0x400 | DMA_PAGE_7)
+
+#define DMA_MODE_READ 0x44 /* I/O to memory, no autoinit, increment, single mode */
+#define DMA_MODE_WRITE 0x48 /* memory to I/O, no autoinit, increment, single mode */
+#define DMA_MODE_CASCADE 0xC0 /* pass thru DREQ->HRQ, DACK<-HLDA only */
+
+#define DMA_AUTOINIT 0x10
+
+extern spinlock_t dma_spin_lock;
+
+static __inline__ unsigned long claim_dma_lock(void)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&dma_spin_lock, flags);
+ return flags;
+}
+
+static __inline__ void release_dma_lock(unsigned long flags)
+{
+ spin_unlock_irqrestore(&dma_spin_lock, flags);
+}
+
+/* enable/disable a specific DMA channel */
+static __inline__ void enable_dma(unsigned int dmanr)
+{
+ if (dmanr<=3)
+ dma_outb(dmanr, DMA1_MASK_REG);
+ else
+ dma_outb(dmanr & 3, DMA2_MASK_REG);
+}
+
+static __inline__ void disable_dma(unsigned int dmanr)
+{
+ if (dmanr<=3)
+ dma_outb(dmanr | 4, DMA1_MASK_REG);
+ else
+ dma_outb((dmanr & 3) | 4, DMA2_MASK_REG);
+}
+
+/* Clear the 'DMA Pointer Flip Flop'.
+ * Write 0 for LSB/MSB, 1 for MSB/LSB access.
+ * Use this once to initialize the FF to a known state.
+ * After that, keep track of it. :-)
+ * --- In order to do that, the DMA routines below should ---
+ * --- only be used while interrupts are disabled! ---
+ */
+static __inline__ void clear_dma_ff(unsigned int dmanr)
+{
+ if (dmanr<=3)
+ dma_outb(0, DMA1_CLEAR_FF_REG);
+ else
+ dma_outb(0, DMA2_CLEAR_FF_REG);
+}
+
+/* set mode (above) for a specific DMA channel */
+static __inline__ void set_dma_mode(unsigned int dmanr, char mode)
+{
+ if (dmanr<=3)
+ dma_outb(mode | dmanr, DMA1_MODE_REG);
+ else
+ dma_outb(mode | (dmanr&3), DMA2_MODE_REG);
+}
+
+/* set extended mode for a specific DMA channel */
+static __inline__ void set_dma_ext_mode(unsigned int dmanr, char ext_mode)
+{
+ if (dmanr<=3)
+ dma_outb(ext_mode | dmanr, DMA1_EXT_MODE_REG);
+ else
+ dma_outb(ext_mode | (dmanr&3), DMA2_EXT_MODE_REG);
+}
+
+/* Set only the page register bits of the transfer address.
+ * This is used for successive transfers when we know the contents of
+ * the lower 16 bits of the DMA current address register.
+ */
+static __inline__ void set_dma_page(unsigned int dmanr, unsigned int pagenr)
+{
+ switch(dmanr) {
+ case 0:
+ dma_outb(pagenr, DMA_PAGE_0);
+ dma_outb((pagenr >> 8), DMA_HIPAGE_0);
+ break;
+ case 1:
+ dma_outb(pagenr, DMA_PAGE_1);
+ dma_outb((pagenr >> 8), DMA_HIPAGE_1);
+ break;
+ case 2:
+ dma_outb(pagenr, DMA_PAGE_2);
+ dma_outb((pagenr >> 8), DMA_HIPAGE_2);
+ break;
+ case 3:
+ dma_outb(pagenr, DMA_PAGE_3);
+ dma_outb((pagenr >> 8), DMA_HIPAGE_3);
+ break;
+ case 5:
+ dma_outb(pagenr & 0xfe, DMA_PAGE_5);
+ dma_outb((pagenr >> 8), DMA_HIPAGE_5);
+ break;
+ case 6:
+ dma_outb(pagenr & 0xfe, DMA_PAGE_6);
+ dma_outb((pagenr >> 8), DMA_HIPAGE_6);
+ break;
+ case 7:
+ dma_outb(pagenr & 0xfe, DMA_PAGE_7);
+ dma_outb((pagenr >> 8), DMA_HIPAGE_7);
+ break;
+ }
+}
+
+
+/* Set transfer address & page bits for specific DMA channel.
+ * Assumes dma flipflop is clear.
+ */
+static __inline__ void set_dma_addr(unsigned int dmanr, unsigned int a)
+{
+ if (dmanr <= 3) {
+ dma_outb( a & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
+ dma_outb( (a>>8) & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
+ } else {
+ dma_outb( (a>>1) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
+ dma_outb( (a>>9) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
+ }
+ set_dma_page(dmanr, a>>16); /* set hipage last to enable 32-bit mode */
+}
+
+
+/* Set transfer size (max 64k for DMA1..3, 128k for DMA5..7) for
+ * a specific DMA channel.
+ * You must ensure the parameters are valid.
+ * NOTE: from a manual: "the number of transfers is one more
+ * than the initial word count"! This is taken into account.
+ * Assumes dma flip-flop is clear.
+ * NOTE 2: "count" represents _bytes_ and must be even for channels 5-7.
+ */
+static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count)
+{
+ count--;
+ if (dmanr <= 3) {
+ dma_outb( count & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
+ dma_outb( (count>>8) & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
+ } else {
+ dma_outb( (count>>1) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
+ dma_outb( (count>>9) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
+ }
+}
+
+
+/* Get DMA residue count. After a DMA transfer, this
+ * should return zero. Reading this while a DMA transfer is
+ * still in progress will return unpredictable results.
+ * If called before the channel has been used, it may return 1.
+ * Otherwise, it returns the number of _bytes_ left to transfer.
+ *
+ * Assumes DMA flip-flop is clear.
+ */
+static __inline__ int get_dma_residue(unsigned int dmanr)
+{
+ unsigned int io_port = (dmanr<=3)? ((dmanr&3)<<1) + 1 + IO_DMA1_BASE
+ : ((dmanr&3)<<2) + 2 + IO_DMA2_BASE;
+
+ /* using short to get 16-bit wrap around */
+ unsigned short count;
+
+ count = 1 + dma_inb(io_port);
+ count += dma_inb(io_port) << 8;
+
+ return (dmanr<=3)? count : (count<<1);
+}
+
+
+/* These are in kernel/dma.c: */
+extern int request_dma(unsigned int dmanr, const char * device_id); /* reserve a DMA channel */
+extern void free_dma(unsigned int dmanr); /* release it again */
+#define KERNEL_HAVE_CHECK_DMA
+extern int check_dma(unsigned int dmanr);
+
+#endif /* _ASM_DMA_H */
diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
new file mode 100644
index 0000000000..e6da23f1da
--- /dev/null
+++ b/arch/alpha/include/asm/elf.h
@@ -0,0 +1,160 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_ALPHA_ELF_H
+#define __ASM_ALPHA_ELF_H
+
+#include <asm/auxvec.h>
+#include <asm/special_insns.h>
+
+/* Special values for the st_other field in the symbol table. */
+
+#define STO_ALPHA_NOPV 0x80
+#define STO_ALPHA_STD_GPLOAD 0x88
+
+/*
+ * Alpha ELF relocation types
+ */
+#define R_ALPHA_NONE 0 /* No reloc */
+#define R_ALPHA_REFLONG 1 /* Direct 32 bit */
+#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */
+#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */
+#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */
+#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */
+#define R_ALPHA_GPDISP 6 /* Add displacement to GP */
+#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */
+#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */
+#define R_ALPHA_SREL16 9 /* PC relative 16 bit */
+#define R_ALPHA_SREL32 10 /* PC relative 32 bit */
+#define R_ALPHA_SREL64 11 /* PC relative 64 bit */
+#define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */
+#define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */
+#define R_ALPHA_GPREL16 19 /* GP relative 16 bit */
+#define R_ALPHA_COPY 24 /* Copy symbol at runtime */
+#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */
+#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */
+#define R_ALPHA_RELATIVE 27 /* Adjust by program base */
+#define R_ALPHA_BRSGP 28
+#define R_ALPHA_TLSGD 29
+#define R_ALPHA_TLS_LDM 30
+#define R_ALPHA_DTPMOD64 31
+#define R_ALPHA_GOTDTPREL 32
+#define R_ALPHA_DTPREL64 33
+#define R_ALPHA_DTPRELHI 34
+#define R_ALPHA_DTPRELLO 35
+#define R_ALPHA_DTPREL16 36
+#define R_ALPHA_GOTTPREL 37
+#define R_ALPHA_TPREL64 38
+#define R_ALPHA_TPRELHI 39
+#define R_ALPHA_TPRELLO 40
+#define R_ALPHA_TPREL16 41
+
+#define SHF_ALPHA_GPREL 0x10000000
+
+/* Legal values for e_flags field of Elf64_Ehdr. */
+
+#define EF_ALPHA_32BIT 1 /* All addresses are below 2GB */
+
+/*
+ * ELF register definitions..
+ */
+
+/*
+ * The OSF/1 version of <sys/procfs.h> makes gregset_t 46 entries long.
+ * I have no idea why that is so. For now, we just leave it at 33
+ * (32 general regs + processor status word).
+ */
+#define ELF_NGREG 33
+#define ELF_NFPREG 32
+
+typedef unsigned long elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ((x)->e_machine == EM_ALPHA)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS ELFCLASS64
+#define ELF_DATA ELFDATA2LSB
+#define ELF_ARCH EM_ALPHA
+
+#define ELF_EXEC_PAGESIZE 8192
+
+/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
+ use of this is to invoke "./ld.so someprog" to test out a new version of
+ the loader. We need to make sure that it is out of the way of the program
+ that it will "exec", and that there is sufficient room for the brk. */
+
+#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
+
+/* $0 is set by ld.so to a pointer to a function which might be
+ registered using atexit. This provides a mean for the dynamic
+ linker to call DT_FINI functions for shared libraries that have
+ been loaded before the code runs.
+
+ So that we can use the same startup file with static executables,
+ we start programs with a value of 0 to indicate that there is no
+ such function. */
+
+#define ELF_PLAT_INIT(_r, load_addr) _r->r0 = 0
+
+/* The registers are laid out in pt_regs for PAL and syscall
+ convenience. Re-order them for the linear elf_gregset_t. */
+
+struct pt_regs;
+struct thread_info;
+struct task_struct;
+extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt,
+ struct thread_info *ti);
+#define ELF_CORE_COPY_REGS(DEST, REGS) \
+ dump_elf_thread(DEST, REGS, current_thread_info());
+
+/* Similar, but for a thread other than current. */
+
+extern int dump_elf_task(elf_greg_t *dest, struct task_struct *task);
+#define ELF_CORE_COPY_TASK_REGS(TASK, DEST) \
+ dump_elf_task(*(DEST), TASK)
+
+/* This yields a mask that user programs can use to figure out what
+ instruction set this CPU supports. This is trivial on Alpha,
+ but not so on other machines. */
+
+#define ELF_HWCAP (~amask(-1))
+
+/* This yields a string that ld.so will use to load implementation
+ specific libraries for optimization. This is more specific in
+ intent than poking at uname or /proc/cpuinfo. */
+
+#define ELF_PLATFORM \
+({ \
+ enum implver_enum i_ = implver(); \
+ ( i_ == IMPLVER_EV4 ? "ev4" \
+ : i_ == IMPLVER_EV5 \
+ ? (amask(AMASK_BWX) ? "ev5" : "ev56") \
+ : amask (AMASK_CIX) ? "ev6" : "ev67"); \
+})
+
+#define SET_PERSONALITY(EX) \
+ set_personality(((EX).e_flags & EF_ALPHA_32BIT) \
+ ? PER_LINUX_32BIT : PER_LINUX)
+
+extern int alpha_l1i_cacheshape;
+extern int alpha_l1d_cacheshape;
+extern int alpha_l2_cacheshape;
+extern int alpha_l3_cacheshape;
+
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
+#define ARCH_DLINFO \
+ do { \
+ NEW_AUX_ENT(AT_L1I_CACHESHAPE, alpha_l1i_cacheshape); \
+ NEW_AUX_ENT(AT_L1D_CACHESHAPE, alpha_l1d_cacheshape); \
+ NEW_AUX_ENT(AT_L2_CACHESHAPE, alpha_l2_cacheshape); \
+ NEW_AUX_ENT(AT_L3_CACHESHAPE, alpha_l3_cacheshape); \
+ } while (0)
+
+#endif /* __ASM_ALPHA_ELF_H */
diff --git a/arch/alpha/include/asm/emergency-restart.h b/arch/alpha/include/asm/emergency-restart.h
new file mode 100644
index 0000000000..108d8c48e4
--- /dev/null
+++ b/arch/alpha/include/asm/emergency-restart.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_EMERGENCY_RESTART_H
+#define _ASM_EMERGENCY_RESTART_H
+
+#include <asm-generic/emergency-restart.h>
+
+#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/alpha/include/asm/err_common.h b/arch/alpha/include/asm/err_common.h
new file mode 100644
index 0000000000..610e01fe73
--- /dev/null
+++ b/arch/alpha/include/asm/err_common.h
@@ -0,0 +1,119 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/include/asm-alpha/err_common.h
+ *
+ * Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
+ *
+ * Contains declarations and macros to support Alpha error handling
+ * implementations.
+ */
+
+#ifndef __ALPHA_ERR_COMMON_H
+#define __ALPHA_ERR_COMMON_H 1
+
+/*
+ * SCB Vector definitions
+ */
+#define SCB_Q_SYSERR 0x620
+#define SCB_Q_PROCERR 0x630
+#define SCB_Q_SYSMCHK 0x660
+#define SCB_Q_PROCMCHK 0x670
+#define SCB_Q_SYSEVENT 0x680
+
+/*
+ * Disposition definitions for logout frame parser
+ */
+#define MCHK_DISPOSITION_UNKNOWN_ERROR 0x00
+#define MCHK_DISPOSITION_REPORT 0x01
+#define MCHK_DISPOSITION_DISMISS 0x02
+
+/*
+ * Error Log definitions
+ */
+/*
+ * Types
+ */
+
+#define EL_CLASS__TERMINATION (0)
+# define EL_TYPE__TERMINATION__TERMINATION (0)
+#define EL_CLASS__HEADER (5)
+# define EL_TYPE__HEADER__SYSTEM_ERROR_FRAME (1)
+# define EL_TYPE__HEADER__SYSTEM_EVENT_FRAME (2)
+# define EL_TYPE__HEADER__HALT_FRAME (3)
+# define EL_TYPE__HEADER__LOGOUT_FRAME (19)
+#define EL_CLASS__GENERAL_NOTIFICATION (9)
+#define EL_CLASS__PCI_ERROR_FRAME (11)
+#define EL_CLASS__REGATTA_FAMILY (12)
+# define EL_TYPE__REGATTA__PROCESSOR_ERROR_FRAME (1)
+# define EL_TYPE__REGATTA__SYSTEM_ERROR_FRAME (2)
+# define EL_TYPE__REGATTA__ENVIRONMENTAL_FRAME (3)
+# define EL_TYPE__REGATTA__TITAN_PCHIP0_EXTENDED (8)
+# define EL_TYPE__REGATTA__TITAN_PCHIP1_EXTENDED (9)
+# define EL_TYPE__REGATTA__TITAN_MEMORY_EXTENDED (10)
+# define EL_TYPE__REGATTA__PROCESSOR_DBL_ERROR_HALT (11)
+# define EL_TYPE__REGATTA__SYSTEM_DBL_ERROR_HALT (12)
+#define EL_CLASS__PAL (14)
+# define EL_TYPE__PAL__LOGOUT_FRAME (1)
+# define EL_TYPE__PAL__EV7_PROCESSOR (4)
+# define EL_TYPE__PAL__EV7_ZBOX (5)
+# define EL_TYPE__PAL__EV7_RBOX (6)
+# define EL_TYPE__PAL__EV7_IO (7)
+# define EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE (10)
+# define EL_TYPE__PAL__ENV__AIRMOVER_FAN (11)
+# define EL_TYPE__PAL__ENV__VOLTAGE (12)
+# define EL_TYPE__PAL__ENV__INTRUSION (13)
+# define EL_TYPE__PAL__ENV__POWER_SUPPLY (14)
+# define EL_TYPE__PAL__ENV__LAN (15)
+# define EL_TYPE__PAL__ENV__HOT_PLUG (16)
+
+union el_timestamp {
+ struct {
+ u8 second;
+ u8 minute;
+ u8 hour;
+ u8 day;
+ u8 month;
+ u8 year;
+ } b;
+ u64 as_int;
+};
+
+struct el_subpacket {
+ u16 length; /* length of header (in bytes) */
+ u16 class; /* header class and type... */
+ u16 type; /* ...determine content */
+ u16 revision; /* header revision */
+ union {
+ struct { /* Class 5, Type 1 - System Error */
+ u32 frame_length;
+ u32 frame_packet_count;
+ } sys_err;
+ struct { /* Class 5, Type 2 - System Event */
+ union el_timestamp timestamp;
+ u32 frame_length;
+ u32 frame_packet_count;
+ } sys_event;
+ struct { /* Class 5, Type 3 - Double Error Halt */
+ u16 halt_code;
+ u16 reserved;
+ union el_timestamp timestamp;
+ u32 frame_length;
+ u32 frame_packet_count;
+ } err_halt;
+ struct { /* Clasee 5, Type 19 - Logout Frame Header */
+ u32 frame_length;
+ u32 frame_flags;
+ u32 cpu_offset;
+ u32 system_offset;
+ } logout_header;
+ struct { /* Class 12 - Regatta */
+ u64 cpuid;
+ u64 data_start[1];
+ } regatta_frame;
+ struct { /* Raw */
+ u64 data_start[1];
+ } raw;
+ } by_type;
+};
+
+#endif /* __ALPHA_ERR_COMMON_H */
diff --git a/arch/alpha/include/asm/err_ev6.h b/arch/alpha/include/asm/err_ev6.h
new file mode 100644
index 0000000000..ea637791e4
--- /dev/null
+++ b/arch/alpha/include/asm/err_ev6.h
@@ -0,0 +1,6 @@
+#ifndef __ALPHA_ERR_EV6_H
+#define __ALPHA_ERR_EV6_H 1
+
+/* Dummy include for now. */
+
+#endif /* __ALPHA_ERR_EV6_H */
diff --git a/arch/alpha/include/asm/err_ev7.h b/arch/alpha/include/asm/err_ev7.h
new file mode 100644
index 0000000000..ab17e63337
--- /dev/null
+++ b/arch/alpha/include/asm/err_ev7.h
@@ -0,0 +1,203 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_ERR_EV7_H
+#define __ALPHA_ERR_EV7_H 1
+
+/*
+ * Data for el packet class PAL (14), type LOGOUT_FRAME (1)
+ */
+struct ev7_pal_logout_subpacket {
+ u32 mchk_code;
+ u32 subpacket_count;
+ u64 whami;
+ u64 rbox_whami;
+ u64 rbox_int;
+ u64 exc_addr;
+ union el_timestamp timestamp;
+ u64 halt_code;
+ u64 reserved;
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_PROCESSOR (4)
+ */
+struct ev7_pal_processor_subpacket {
+ u64 i_stat;
+ u64 dc_stat;
+ u64 c_addr;
+ u64 c_syndrome_1;
+ u64 c_syndrome_0;
+ u64 c_stat;
+ u64 c_sts;
+ u64 mm_stat;
+ u64 exc_addr;
+ u64 ier_cm;
+ u64 isum;
+ u64 pal_base;
+ u64 i_ctl;
+ u64 process_context;
+ u64 cbox_ctl;
+ u64 cbox_stp_ctl;
+ u64 cbox_acc_ctl;
+ u64 cbox_lcl_set;
+ u64 cbox_gbl_set;
+ u64 bbox_ctl;
+ u64 bbox_err_sts;
+ u64 bbox_err_idx;
+ u64 cbox_ddp_err_sts;
+ u64 bbox_dat_rmp;
+ u64 reserved[2];
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_ZBOX (5)
+ */
+struct ev7_pal_zbox_subpacket {
+ u32 zbox0_dram_err_status_1;
+ u32 zbox0_dram_err_status_2;
+ u32 zbox0_dram_err_status_3;
+ u32 zbox0_dram_err_ctl;
+ u32 zbox0_dram_err_adr;
+ u32 zbox0_dift_timeout;
+ u32 zbox0_dram_mapper_ctl;
+ u32 zbox0_frc_err_adr;
+ u32 zbox0_dift_err_status;
+ u32 reserved1;
+ u32 zbox1_dram_err_status_1;
+ u32 zbox1_dram_err_status_2;
+ u32 zbox1_dram_err_status_3;
+ u32 zbox1_dram_err_ctl;
+ u32 zbox1_dram_err_adr;
+ u32 zbox1_dift_timeout;
+ u32 zbox1_dram_mapper_ctl;
+ u32 zbox1_frc_err_adr;
+ u32 zbox1_dift_err_status;
+ u32 reserved2;
+ u64 cbox_ctl;
+ u64 cbox_stp_ctl;
+ u64 zbox0_error_pa;
+ u64 zbox1_error_pa;
+ u64 zbox0_ored_syndrome;
+ u64 zbox1_ored_syndrome;
+ u64 reserved3[2];
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_RBOX (6)
+ */
+struct ev7_pal_rbox_subpacket {
+ u64 rbox_cfg;
+ u64 rbox_n_cfg;
+ u64 rbox_s_cfg;
+ u64 rbox_e_cfg;
+ u64 rbox_w_cfg;
+ u64 rbox_n_err;
+ u64 rbox_s_err;
+ u64 rbox_e_err;
+ u64 rbox_w_err;
+ u64 rbox_io_cfg;
+ u64 rbox_io_err;
+ u64 rbox_l_err;
+ u64 rbox_whoami;
+ u64 rbox_imask;
+ u64 rbox_intq;
+ u64 rbox_int;
+ u64 reserved[2];
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_IO (7)
+ */
+struct ev7_pal_io_one_port {
+ u64 pox_err_sum;
+ u64 pox_tlb_err;
+ u64 pox_spl_cmplt;
+ u64 pox_trans_sum;
+ u64 pox_first_err;
+ u64 pox_mult_err;
+ u64 pox_dm_source;
+ u64 pox_dm_dest;
+ u64 pox_dm_size;
+ u64 pox_dm_ctrl;
+ u64 reserved;
+};
+
+struct ev7_pal_io_subpacket {
+ u64 io_asic_rev;
+ u64 io_sys_rev;
+ u64 io7_uph;
+ u64 hpi_ctl;
+ u64 crd_ctl;
+ u64 hei_ctl;
+ u64 po7_error_sum;
+ u64 po7_uncrr_sym;
+ u64 po7_crrct_sym;
+ u64 po7_ugbge_sym;
+ u64 po7_err_pkt0;
+ u64 po7_err_pkt1;
+ u64 reserved[2];
+ struct ev7_pal_io_one_port ports[4];
+};
+
+/*
+ * Environmental subpacket. Data used for el packets:
+ * class PAL (14), type AMBIENT_TEMPERATURE (10)
+ * class PAL (14), type AIRMOVER_FAN (11)
+ * class PAL (14), type VOLTAGE (12)
+ * class PAL (14), type INTRUSION (13)
+ * class PAL (14), type POWER_SUPPLY (14)
+ * class PAL (14), type LAN (15)
+ * class PAL (14), type HOT_PLUG (16)
+ */
+struct ev7_pal_environmental_subpacket {
+ u16 cabinet;
+ u16 drawer;
+ u16 reserved1[2];
+ u8 module_type;
+ u8 unit_id; /* unit reporting condition */
+ u8 reserved2;
+ u8 condition; /* condition reported */
+};
+
+/*
+ * Convert environmental type to index
+ */
+static inline int ev7_lf_env_index(int type)
+{
+ BUG_ON((type < EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE)
+ || (type > EL_TYPE__PAL__ENV__HOT_PLUG));
+
+ return type - EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE;
+}
+
+/*
+ * Data for generic el packet class PAL.
+ */
+struct ev7_pal_subpacket {
+ union {
+ struct ev7_pal_logout_subpacket logout; /* Type 1 */
+ struct ev7_pal_processor_subpacket ev7; /* Type 4 */
+ struct ev7_pal_zbox_subpacket zbox; /* Type 5 */
+ struct ev7_pal_rbox_subpacket rbox; /* Type 6 */
+ struct ev7_pal_io_subpacket io; /* Type 7 */
+ struct ev7_pal_environmental_subpacket env; /* Type 10-16 */
+ u64 as_quad[1]; /* Raw u64 */
+ } by_type;
+};
+
+/*
+ * Struct to contain collected logout from subpackets.
+ */
+struct ev7_lf_subpackets {
+ struct ev7_pal_logout_subpacket *logout; /* Type 1 */
+ struct ev7_pal_processor_subpacket *ev7; /* Type 4 */
+ struct ev7_pal_zbox_subpacket *zbox; /* Type 5 */
+ struct ev7_pal_rbox_subpacket *rbox; /* Type 6 */
+ struct ev7_pal_io_subpacket *io; /* Type 7 */
+ struct ev7_pal_environmental_subpacket *env[7]; /* Type 10-16 */
+
+ unsigned int io_pid;
+};
+
+#endif /* __ALPHA_ERR_EV7_H */
+
+
diff --git a/arch/alpha/include/asm/extable.h b/arch/alpha/include/asm/extable.h
new file mode 100644
index 0000000000..e42592390e
--- /dev/null
+++ b/arch/alpha/include/asm/extable.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_EXTABLE_H
+#define _ASM_EXTABLE_H
+
+/*
+ * About the exception table:
+ *
+ * - insn is a 32-bit pc-relative offset from the faulting insn.
+ * - nextinsn is a 16-bit offset off of the faulting instruction
+ * (not off of the *next* instruction as branches are).
+ * - errreg is the register in which to place -EFAULT.
+ * - valreg is the final target register for the load sequence
+ * and will be zeroed.
+ *
+ * Either errreg or valreg may be $31, in which case nothing happens.
+ *
+ * The exception fixup information "just so happens" to be arranged
+ * as in a MEM format instruction. This lets us emit our three
+ * values like so:
+ *
+ * lda valreg, nextinsn(errreg)
+ *
+ */
+
+struct exception_table_entry
+{
+ signed int insn;
+ union exception_fixup {
+ unsigned unit;
+ struct {
+ signed int nextinsn : 16;
+ unsigned int errreg : 5;
+ unsigned int valreg : 5;
+ } bits;
+ } fixup;
+};
+
+/* Returns the new pc */
+#define fixup_exception(map_reg, _fixup, pc) \
+({ \
+ if ((_fixup)->fixup.bits.valreg != 31) \
+ map_reg((_fixup)->fixup.bits.valreg) = 0; \
+ if ((_fixup)->fixup.bits.errreg != 31) \
+ map_reg((_fixup)->fixup.bits.errreg) = -EFAULT; \
+ (pc) + (_fixup)->fixup.bits.nextinsn; \
+})
+
+#define ARCH_HAS_RELATIVE_EXTABLE
+
+#define swap_ex_entry_fixup(a, b, tmp, delta) \
+ do { \
+ (a)->fixup.unit = (b)->fixup.unit; \
+ (b)->fixup.unit = (tmp).fixup.unit; \
+ } while (0)
+
+#endif
diff --git a/arch/alpha/include/asm/floppy.h b/arch/alpha/include/asm/floppy.h
new file mode 100644
index 0000000000..64b42d9591
--- /dev/null
+++ b/arch/alpha/include/asm/floppy.h
@@ -0,0 +1,114 @@
+/*
+ * Architecture specific parts of the Floppy driver
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995
+ */
+#ifndef __ASM_ALPHA_FLOPPY_H
+#define __ASM_ALPHA_FLOPPY_H
+
+
+#define fd_inb(base, reg) inb_p((base) + (reg))
+#define fd_outb(value, base, reg) outb_p(value, (base) + (reg))
+
+#define fd_enable_dma() enable_dma(FLOPPY_DMA)
+#define fd_disable_dma() disable_dma(FLOPPY_DMA)
+#define fd_request_dma() request_dma(FLOPPY_DMA,"floppy")
+#define fd_free_dma() free_dma(FLOPPY_DMA)
+#define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA)
+#define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA,mode)
+#define fd_set_dma_addr(addr) set_dma_addr(FLOPPY_DMA,isa_virt_to_bus(addr))
+#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)
+#define fd_enable_irq() enable_irq(FLOPPY_IRQ)
+#define fd_disable_irq() disable_irq(FLOPPY_IRQ)
+#define fd_request_irq() request_irq(FLOPPY_IRQ, floppy_interrupt,\
+ 0, "floppy", NULL)
+#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL)
+
+#ifdef CONFIG_PCI
+
+#include <linux/pci.h>
+
+#define fd_dma_setup(addr,size,mode,io) alpha_fd_dma_setup(addr,size,mode,io)
+
+static __inline__ int
+alpha_fd_dma_setup(char *addr, unsigned long size, int mode, int io)
+{
+ static unsigned long prev_size;
+ static dma_addr_t bus_addr = 0;
+ static char *prev_addr;
+ static int prev_dir;
+ int dir;
+
+ dir = (mode != DMA_MODE_READ) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+
+ if (bus_addr
+ && (addr != prev_addr || size != prev_size || dir != prev_dir)) {
+ /* different from last time -- unmap prev */
+ dma_unmap_single(&isa_bridge->dev, bus_addr, prev_size,
+ prev_dir);
+ bus_addr = 0;
+ }
+
+ if (!bus_addr) /* need to map it */
+ bus_addr = dma_map_single(&isa_bridge->dev, addr, size, dir);
+
+ /* remember this one as prev */
+ prev_addr = addr;
+ prev_size = size;
+ prev_dir = dir;
+
+ fd_clear_dma_ff();
+ fd_set_dma_mode(mode);
+ set_dma_addr(FLOPPY_DMA, bus_addr);
+ fd_set_dma_count(size);
+ virtual_dma_port = io;
+ fd_enable_dma();
+
+ return 0;
+}
+
+#endif /* CONFIG_PCI */
+
+__inline__ void virtual_dma_init(void)
+{
+ /* Nothing to do on an Alpha */
+}
+
+static int FDC1 = 0x3f0;
+static int FDC2 = -1;
+
+/*
+ * Again, the CMOS information doesn't work on the alpha..
+ */
+#define FLOPPY0_TYPE 6
+#define FLOPPY1_TYPE 0
+
+#define N_FDC 2
+#define N_DRIVE 8
+
+/*
+ * Most Alphas have no problems with floppy DMA crossing 64k borders,
+ * except for certain ones, like XL and RUFFIAN.
+ *
+ * However, the test is simple and fast, and this *is* floppy, after all,
+ * so we do it for all platforms, just to make sure.
+ *
+ * This is advantageous in other circumstances as well, as in moving
+ * about the PCI DMA windows and forcing the floppy to start doing
+ * scatter-gather when it never had before, and there *is* a problem
+ * on that platform... ;-}
+ */
+
+static inline unsigned long CROSS_64KB(void *a, unsigned long s)
+{
+ unsigned long p = (unsigned long)a;
+ return ((p + s - 1) ^ p) & ~0xffffUL;
+}
+
+#define EXTRA_FLOPPY_PARAMS
+
+#endif /* __ASM_ALPHA_FLOPPY_H */
diff --git a/arch/alpha/include/asm/fpu.h b/arch/alpha/include/asm/fpu.h
new file mode 100644
index 0000000000..30b24135dd
--- /dev/null
+++ b/arch/alpha/include/asm/fpu.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_ALPHA_FPU_H
+#define __ASM_ALPHA_FPU_H
+
+#include <asm/special_insns.h>
+#include <uapi/asm/fpu.h>
+
+/* The following two functions don't need trapb/excb instructions
+ around the mf_fpcr/mt_fpcr instructions because (a) the kernel
+ never generates arithmetic faults and (b) call_pal instructions
+ are implied trap barriers. */
+
+static inline unsigned long
+rdfpcr(void)
+{
+ unsigned long tmp, ret;
+
+ preempt_disable();
+ if (current_thread_info()->status & TS_SAVED_FP) {
+ ret = current_thread_info()->fp[31];
+ } else {
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+ __asm__ __volatile__ (
+ "ftoit $f0,%0\n\t"
+ "mf_fpcr $f0\n\t"
+ "ftoit $f0,%1\n\t"
+ "itoft %0,$f0"
+ : "=r"(tmp), "=r"(ret));
+#else
+ __asm__ __volatile__ (
+ "stt $f0,%0\n\t"
+ "mf_fpcr $f0\n\t"
+ "stt $f0,%1\n\t"
+ "ldt $f0,%0"
+ : "=m"(tmp), "=m"(ret));
+#endif
+ }
+ preempt_enable();
+
+ return ret;
+}
+
+static inline void
+wrfpcr(unsigned long val)
+{
+ unsigned long tmp;
+
+ preempt_disable();
+ if (current_thread_info()->status & TS_SAVED_FP) {
+ current_thread_info()->status |= TS_RESTORE_FP;
+ current_thread_info()->fp[31] = val;
+ } else {
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+ __asm__ __volatile__ (
+ "ftoit $f0,%0\n\t"
+ "itoft %1,$f0\n\t"
+ "mt_fpcr $f0\n\t"
+ "itoft %0,$f0"
+ : "=&r"(tmp) : "r"(val));
+#else
+ __asm__ __volatile__ (
+ "stt $f0,%0\n\t"
+ "ldt $f0,%1\n\t"
+ "mt_fpcr $f0\n\t"
+ "ldt $f0,%0"
+ : "=m"(tmp) : "m"(val));
+#endif
+ }
+ preempt_enable();
+}
+
+static inline unsigned long
+swcr_update_status(unsigned long swcr, unsigned long fpcr)
+{
+ /* EV6 implements most of the bits in hardware. Collect
+ the acrued exception bits from the real fpcr. */
+ if (implver() == IMPLVER_EV6) {
+ swcr &= ~IEEE_STATUS_MASK;
+ swcr |= (fpcr >> 35) & IEEE_STATUS_MASK;
+ }
+ return swcr;
+}
+
+extern unsigned long alpha_read_fp_reg (unsigned long reg);
+extern void alpha_write_fp_reg (unsigned long reg, unsigned long val);
+extern unsigned long alpha_read_fp_reg_s (unsigned long reg);
+extern void alpha_write_fp_reg_s (unsigned long reg, unsigned long val);
+
+#endif /* __ASM_ALPHA_FPU_H */
diff --git a/arch/alpha/include/asm/ftrace.h b/arch/alpha/include/asm/ftrace.h
new file mode 100644
index 0000000000..40a8c178f1
--- /dev/null
+++ b/arch/alpha/include/asm/ftrace.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
new file mode 100644
index 0000000000..da67afd578
--- /dev/null
+++ b/arch/alpha/include/asm/futex.h
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_FUTEX_H
+#define _ASM_ALPHA_FUTEX_H
+
+#ifdef __KERNEL__
+
+#include <linux/futex.h>
+#include <linux/uaccess.h>
+#include <asm/errno.h>
+#include <asm/barrier.h>
+
+#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
+ __asm__ __volatile__( \
+ __ASM_SMP_MB \
+ "1: ldl_l %0,0(%2)\n" \
+ insn \
+ "2: stl_c %1,0(%2)\n" \
+ " beq %1,4f\n" \
+ " mov $31,%1\n" \
+ "3: .subsection 2\n" \
+ "4: br 1b\n" \
+ " .previous\n" \
+ EXC(1b,3b,$31,%1) \
+ EXC(2b,3b,$31,%1) \
+ : "=&r" (oldval), "=&r"(ret) \
+ : "r" (uaddr), "r"(oparg) \
+ : "memory")
+
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr)
+{
+ int oldval = 0, ret;
+
+ if (!access_ok(uaddr, sizeof(u32)))
+ return -EFAULT;
+
+ switch (op) {
+ case FUTEX_OP_SET:
+ __futex_atomic_op("mov %3,%1\n", ret, oldval, uaddr, oparg);
+ break;
+ case FUTEX_OP_ADD:
+ __futex_atomic_op("addl %0,%3,%1\n", ret, oldval, uaddr, oparg);
+ break;
+ case FUTEX_OP_OR:
+ __futex_atomic_op("or %0,%3,%1\n", ret, oldval, uaddr, oparg);
+ break;
+ case FUTEX_OP_ANDN:
+ __futex_atomic_op("andnot %0,%3,%1\n", ret, oldval, uaddr, oparg);
+ break;
+ case FUTEX_OP_XOR:
+ __futex_atomic_op("xor %0,%3,%1\n", ret, oldval, uaddr, oparg);
+ break;
+ default:
+ ret = -ENOSYS;
+ }
+
+ if (!ret)
+ *oval = oldval;
+
+ return ret;
+}
+
+static inline int
+futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
+ u32 oldval, u32 newval)
+{
+ int ret = 0, cmp;
+ u32 prev;
+
+ if (!access_ok(uaddr, sizeof(u32)))
+ return -EFAULT;
+
+ __asm__ __volatile__ (
+ __ASM_SMP_MB
+ "1: ldl_l %1,0(%3)\n"
+ " cmpeq %1,%4,%2\n"
+ " beq %2,3f\n"
+ " mov %5,%2\n"
+ "2: stl_c %2,0(%3)\n"
+ " beq %2,4f\n"
+ "3: .subsection 2\n"
+ "4: br 1b\n"
+ " .previous\n"
+ EXC(1b,3b,$31,%0)
+ EXC(2b,3b,$31,%0)
+ : "+r"(ret), "=&r"(prev), "=&r"(cmp)
+ : "r"(uaddr), "r"((long)(int)oldval), "r"(newval)
+ : "memory");
+
+ *uval = prev;
+ return ret;
+}
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_ALPHA_FUTEX_H */
diff --git a/arch/alpha/include/asm/gct.h b/arch/alpha/include/asm/gct.h
new file mode 100644
index 0000000000..2847449fb1
--- /dev/null
+++ b/arch/alpha/include/asm/gct.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_GCT_H
+#define __ALPHA_GCT_H
+
+typedef u64 gct_id;
+typedef u64 gct6_handle;
+
+typedef struct __gct6_node {
+ u8 type;
+ u8 subtype;
+ u16 size;
+ u32 hd_extension;
+ gct6_handle owner;
+ gct6_handle active_user;
+ gct_id id;
+ u64 flags;
+ u16 rev;
+ u16 change_counter;
+ u16 max_child;
+ u16 reserved1;
+ gct6_handle saved_owner;
+ gct6_handle affinity;
+ gct6_handle parent;
+ gct6_handle next;
+ gct6_handle prev;
+ gct6_handle child;
+ u64 fw_flags;
+ u64 os_usage;
+ u64 fru_id;
+ u32 checksum;
+ u32 magic; /* 'GLXY' */
+} gct6_node;
+
+typedef struct {
+ u8 type;
+ u8 subtype;
+ void (*callout)(gct6_node *);
+} gct6_search_struct;
+
+#define GCT_NODE_MAGIC 0x59584c47 /* 'GLXY' */
+
+/*
+ * node types
+ */
+#define GCT_TYPE_HOSE 0x0E
+
+/*
+ * node subtypes
+ */
+#define GCT_SUBTYPE_IO_PORT_MODULE 0x2C
+
+#define GCT_NODE_PTR(off) ((gct6_node *)((char *)hwrpb + \
+ hwrpb->frut_offset + \
+ (gct6_handle)(off))) \
+
+int gct6_find_nodes(gct6_node *, gct6_search_struct *);
+
+#endif /* __ALPHA_GCT_H */
+
diff --git a/arch/alpha/include/asm/hardirq.h b/arch/alpha/include/asm/hardirq.h
new file mode 100644
index 0000000000..5ce5b34e8a
--- /dev/null
+++ b/arch/alpha/include/asm/hardirq.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_HARDIRQ_H
+#define _ALPHA_HARDIRQ_H
+
+void ack_bad_irq(unsigned int irq);
+#define ack_bad_irq ack_bad_irq
+
+#include <asm-generic/hardirq.h>
+
+#endif /* _ALPHA_HARDIRQ_H */
diff --git a/arch/alpha/include/asm/hw_irq.h b/arch/alpha/include/asm/hw_irq.h
new file mode 100644
index 0000000000..e2d81ac0d9
--- /dev/null
+++ b/arch/alpha/include/asm/hw_irq.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_HW_IRQ_H
+#define _ALPHA_HW_IRQ_H
+
+
+extern volatile unsigned long irq_err_count;
+DECLARE_PER_CPU(unsigned long, irq_pmi_count);
+
+#ifdef CONFIG_ALPHA_GENERIC
+#define ACTUAL_NR_IRQS alpha_mv.nr_irqs
+#else
+#define ACTUAL_NR_IRQS NR_IRQS
+#endif
+
+#endif
diff --git a/arch/alpha/include/asm/hwrpb.h b/arch/alpha/include/asm/hwrpb.h
new file mode 100644
index 0000000000..fc76f36265
--- /dev/null
+++ b/arch/alpha/include/asm/hwrpb.h
@@ -0,0 +1,221 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_HWRPB_H
+#define __ALPHA_HWRPB_H
+
+#define INIT_HWRPB ((struct hwrpb_struct *) 0x10000000)
+
+/*
+ * DEC processor types for Alpha systems. Found in HWRPB.
+ * These values are architected.
+ */
+
+#define EV3_CPU 1 /* EV3 */
+#define EV4_CPU 2 /* EV4 (21064) */
+#define LCA4_CPU 4 /* LCA4 (21066/21068) */
+#define EV5_CPU 5 /* EV5 (21164) */
+#define EV45_CPU 6 /* EV4.5 (21064/xxx) */
+#define EV56_CPU 7 /* EV5.6 (21164) */
+#define EV6_CPU 8 /* EV6 (21264) */
+#define PCA56_CPU 9 /* PCA56 (21164PC) */
+#define PCA57_CPU 10 /* PCA57 (notyet) */
+#define EV67_CPU 11 /* EV67 (21264A) */
+#define EV68CB_CPU 12 /* EV68CB (21264C) */
+#define EV68AL_CPU 13 /* EV68AL (21264B) */
+#define EV68CX_CPU 14 /* EV68CX (21264D) */
+#define EV7_CPU 15 /* EV7 (21364) */
+#define EV79_CPU 16 /* EV79 (21364??) */
+#define EV69_CPU 17 /* EV69 (21264/EV69A) */
+
+/*
+ * DEC system types for Alpha systems. Found in HWRPB.
+ * These values are architected.
+ */
+
+#define ST_ADU 1 /* Alpha ADU systype */
+#define ST_DEC_4000 2 /* Cobra systype */
+#define ST_DEC_7000 3 /* Ruby systype */
+#define ST_DEC_3000_500 4 /* Flamingo systype */
+#define ST_DEC_2000_300 6 /* Jensen systype */
+#define ST_DEC_3000_300 7 /* Pelican systype */
+#define ST_DEC_2100_A500 9 /* Sable systype */
+#define ST_DEC_AXPVME_64 10 /* AXPvme system type */
+#define ST_DEC_AXPPCI_33 11 /* NoName system type */
+#define ST_DEC_TLASER 12 /* Turbolaser systype */
+#define ST_DEC_2100_A50 13 /* Avanti systype */
+#define ST_DEC_MUSTANG 14 /* Mustang systype */
+#define ST_DEC_ALCOR 15 /* Alcor (EV5) systype */
+#define ST_DEC_1000 17 /* Mikasa systype */
+#define ST_DEC_EB64 18 /* EB64 systype */
+#define ST_DEC_EB66 19 /* EB66 systype */
+#define ST_DEC_EB64P 20 /* EB64+ systype */
+#define ST_DEC_BURNS 21 /* laptop systype */
+#define ST_DEC_RAWHIDE 22 /* Rawhide systype */
+#define ST_DEC_K2 23 /* K2 systype */
+#define ST_DEC_LYNX 24 /* Lynx systype */
+#define ST_DEC_XL 25 /* Alpha XL systype */
+#define ST_DEC_EB164 26 /* EB164 systype */
+#define ST_DEC_NORITAKE 27 /* Noritake systype */
+#define ST_DEC_CORTEX 28 /* Cortex systype */
+#define ST_DEC_MIATA 30 /* Miata systype */
+#define ST_DEC_XXM 31 /* XXM systype */
+#define ST_DEC_TAKARA 32 /* Takara systype */
+#define ST_DEC_YUKON 33 /* Yukon systype */
+#define ST_DEC_TSUNAMI 34 /* Tsunami systype */
+#define ST_DEC_WILDFIRE 35 /* Wildfire systype */
+#define ST_DEC_CUSCO 36 /* CUSCO systype */
+#define ST_DEC_EIGER 37 /* Eiger systype */
+#define ST_DEC_TITAN 38 /* Titan systype */
+#define ST_DEC_MARVEL 39 /* Marvel systype */
+
+/* UNOFFICIAL!!! */
+#define ST_UNOFFICIAL_BIAS 100
+#define ST_DTI_RUFFIAN 101 /* RUFFIAN systype */
+
+/* Alpha Processor, Inc. systems */
+#define ST_API_BIAS 200
+#define ST_API_NAUTILUS 201 /* UP1000 systype */
+
+struct pcb_struct {
+ unsigned long ksp;
+ unsigned long usp;
+ unsigned long ptbr;
+ unsigned int pcc;
+ unsigned int asn;
+ unsigned long unique;
+ unsigned long flags;
+ unsigned long res1, res2;
+};
+
+struct percpu_struct {
+ unsigned long hwpcb[16];
+ unsigned long flags;
+ unsigned long pal_mem_size;
+ unsigned long pal_scratch_size;
+ unsigned long pal_mem_pa;
+ unsigned long pal_scratch_pa;
+ unsigned long pal_revision;
+ unsigned long type;
+ unsigned long variation;
+ unsigned long revision;
+ unsigned long serial_no[2];
+ unsigned long logout_area_pa;
+ unsigned long logout_area_len;
+ unsigned long halt_PCBB;
+ unsigned long halt_PC;
+ unsigned long halt_PS;
+ unsigned long halt_arg;
+ unsigned long halt_ra;
+ unsigned long halt_pv;
+ unsigned long halt_reason;
+ unsigned long res;
+ unsigned long ipc_buffer[21];
+ unsigned long palcode_avail[16];
+ unsigned long compatibility;
+ unsigned long console_data_log_pa;
+ unsigned long console_data_log_length;
+ unsigned long bcache_info;
+};
+
+struct procdesc_struct {
+ unsigned long weird_vms_stuff;
+ unsigned long address;
+};
+
+struct vf_map_struct {
+ unsigned long va;
+ unsigned long pa;
+ unsigned long count;
+};
+
+struct crb_struct {
+ struct procdesc_struct * dispatch_va;
+ struct procdesc_struct * dispatch_pa;
+ struct procdesc_struct * fixup_va;
+ struct procdesc_struct * fixup_pa;
+ /* virtual->physical map */
+ unsigned long map_entries;
+ unsigned long map_pages;
+ struct vf_map_struct map[1];
+};
+
+struct memclust_struct {
+ unsigned long start_pfn;
+ unsigned long numpages;
+ unsigned long numtested;
+ unsigned long bitmap_va;
+ unsigned long bitmap_pa;
+ unsigned long bitmap_chksum;
+ unsigned long usage;
+};
+
+struct memdesc_struct {
+ unsigned long chksum;
+ unsigned long optional_pa;
+ unsigned long numclusters;
+ struct memclust_struct cluster[];
+};
+
+struct dsr_struct {
+ long smm; /* SMM nubber used by LMF */
+ unsigned long lurt_off; /* offset to LURT table */
+ unsigned long sysname_off; /* offset to sysname char count */
+};
+
+struct hwrpb_struct {
+ unsigned long phys_addr; /* check: physical address of the hwrpb */
+ unsigned long id; /* check: "HWRPB\0\0\0" */
+ unsigned long revision;
+ unsigned long size; /* size of hwrpb */
+ unsigned long cpuid;
+ unsigned long pagesize; /* 8192, I hope */
+ unsigned long pa_bits; /* number of physical address bits */
+ unsigned long max_asn;
+ unsigned char ssn[16]; /* system serial number: big bother is watching */
+ unsigned long sys_type;
+ unsigned long sys_variation;
+ unsigned long sys_revision;
+ unsigned long intr_freq; /* interval clock frequency * 4096 */
+ unsigned long cycle_freq; /* cycle counter frequency */
+ unsigned long vptb; /* Virtual Page Table Base address */
+ unsigned long res1;
+ unsigned long tbhb_offset; /* Translation Buffer Hint Block */
+ unsigned long nr_processors;
+ unsigned long processor_size;
+ unsigned long processor_offset;
+ unsigned long ctb_nr;
+ unsigned long ctb_size; /* console terminal block size */
+ unsigned long ctbt_offset; /* console terminal block table offset */
+ unsigned long crb_offset; /* console callback routine block */
+ unsigned long mddt_offset; /* memory data descriptor table */
+ unsigned long cdb_offset; /* configuration data block (or NULL) */
+ unsigned long frut_offset; /* FRU table (or NULL) */
+ void (*save_terminal)(unsigned long);
+ unsigned long save_terminal_data;
+ void (*restore_terminal)(unsigned long);
+ unsigned long restore_terminal_data;
+ void (*CPU_restart)(unsigned long);
+ unsigned long CPU_restart_data;
+ unsigned long res2;
+ unsigned long res3;
+ unsigned long chksum;
+ unsigned long rxrdy;
+ unsigned long txrdy;
+ unsigned long dsr_offset; /* "Dynamic System Recognition Data Block Table" */
+};
+
+#ifdef __KERNEL__
+
+extern struct hwrpb_struct *hwrpb;
+
+static inline void
+hwrpb_update_checksum(struct hwrpb_struct *h)
+{
+ unsigned long sum = 0, *l;
+ for (l = (unsigned long *) h; l < (unsigned long *) &h->chksum; ++l)
+ sum += *l;
+ h->chksum = sum;
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_HWRPB_H */
diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
new file mode 100644
index 0000000000..7aeaf7c30a
--- /dev/null
+++ b/arch/alpha/include/asm/io.h
@@ -0,0 +1,680 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_IO_H
+#define __ALPHA_IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <asm/compiler.h>
+#include <asm/machvec.h>
+#include <asm/hwrpb.h>
+
+/* The generic header contains only prototypes. Including it ensures that
+ the implementation we have here matches that interface. */
+#include <asm-generic/iomap.h>
+
+/*
+ * Virtual -> physical identity mapping starts at this offset
+ */
+#ifdef USE_48_BIT_KSEG
+#define IDENT_ADDR 0xffff800000000000UL
+#else
+#define IDENT_ADDR 0xfffffc0000000000UL
+#endif
+
+/*
+ * We try to avoid hae updates (thus the cache), but when we
+ * do need to update the hae, we need to do it atomically, so
+ * that any interrupts wouldn't get confused with the hae
+ * register not being up-to-date with respect to the hardware
+ * value.
+ */
+extern inline void __set_hae(unsigned long new_hae)
+{
+ unsigned long flags = swpipl(IPL_MAX);
+
+ barrier();
+
+ alpha_mv.hae_cache = new_hae;
+ *alpha_mv.hae_register = new_hae;
+ mb();
+ /* Re-read to make sure it was written. */
+ new_hae = *alpha_mv.hae_register;
+
+ setipl(flags);
+ barrier();
+}
+
+extern inline void set_hae(unsigned long new_hae)
+{
+ if (new_hae != alpha_mv.hae_cache)
+ __set_hae(new_hae);
+}
+
+/*
+ * Change virtual addresses to physical addresses and vv.
+ */
+#ifdef USE_48_BIT_KSEG
+static inline unsigned long virt_to_phys(volatile void *address)
+{
+ return (unsigned long)address - IDENT_ADDR;
+}
+
+static inline void * phys_to_virt(unsigned long address)
+{
+ return (void *) (address + IDENT_ADDR);
+}
+#else
+static inline unsigned long virt_to_phys(volatile void *address)
+{
+ unsigned long phys = (unsigned long)address;
+
+ /* Sign-extend from bit 41. */
+ phys <<= (64 - 41);
+ phys = (long)phys >> (64 - 41);
+
+ /* Crop to the physical address width of the processor. */
+ phys &= (1ul << hwrpb->pa_bits) - 1;
+
+ return phys;
+}
+
+static inline void * phys_to_virt(unsigned long address)
+{
+ return (void *)(IDENT_ADDR + (address & ((1ul << 41) - 1)));
+}
+#endif
+
+#define virt_to_phys virt_to_phys
+#define phys_to_virt phys_to_virt
+#define page_to_phys(page) page_to_pa(page)
+
+/* Maximum PIO space address supported? */
+#define IO_SPACE_LIMIT 0xffff
+
+/*
+ * Change addresses as seen by the kernel (virtual) to addresses as
+ * seen by a device (bus), and vice versa.
+ *
+ * Note that this only works for a limited range of kernel addresses,
+ * and very well may not span all memory. Consider this interface
+ * deprecated in favour of the DMA-mapping API.
+ */
+extern unsigned long __direct_map_base;
+extern unsigned long __direct_map_size;
+
+static inline unsigned long __deprecated isa_virt_to_bus(volatile void *address)
+{
+ unsigned long phys = virt_to_phys(address);
+ unsigned long bus = phys + __direct_map_base;
+ return phys <= __direct_map_size ? bus : 0;
+}
+#define isa_virt_to_bus isa_virt_to_bus
+
+static inline void * __deprecated isa_bus_to_virt(unsigned long address)
+{
+ void *virt;
+
+ /* This check is a sanity check but also ensures that bus address 0
+ maps to virtual address 0 which is useful to detect null pointers
+ (the NCR driver is much simpler if NULL pointers are preserved). */
+ address -= __direct_map_base;
+ virt = phys_to_virt(address);
+ return (long)address <= 0 ? NULL : virt;
+}
+#define isa_bus_to_virt isa_bus_to_virt
+
+/*
+ * There are different chipsets to interface the Alpha CPUs to the world.
+ */
+
+#define IO_CONCAT(a,b) _IO_CONCAT(a,b)
+#define _IO_CONCAT(a,b) a ## _ ## b
+
+#ifdef CONFIG_ALPHA_GENERIC
+
+/* In a generic kernel, we always go through the machine vector. */
+
+#define REMAP1(TYPE, NAME, QUAL) \
+static inline TYPE generic_##NAME(QUAL void __iomem *addr) \
+{ \
+ return alpha_mv.mv_##NAME(addr); \
+}
+
+#define REMAP2(TYPE, NAME, QUAL) \
+static inline void generic_##NAME(TYPE b, QUAL void __iomem *addr) \
+{ \
+ alpha_mv.mv_##NAME(b, addr); \
+}
+
+REMAP1(unsigned int, ioread8, const)
+REMAP1(unsigned int, ioread16, const)
+REMAP1(unsigned int, ioread32, const)
+REMAP1(u64, ioread64, const)
+REMAP1(u8, readb, const volatile)
+REMAP1(u16, readw, const volatile)
+REMAP1(u32, readl, const volatile)
+REMAP1(u64, readq, const volatile)
+
+REMAP2(u8, iowrite8, /**/)
+REMAP2(u16, iowrite16, /**/)
+REMAP2(u32, iowrite32, /**/)
+REMAP2(u64, iowrite64, /**/)
+REMAP2(u8, writeb, volatile)
+REMAP2(u16, writew, volatile)
+REMAP2(u32, writel, volatile)
+REMAP2(u64, writeq, volatile)
+
+#undef REMAP1
+#undef REMAP2
+
+extern inline void __iomem *generic_ioportmap(unsigned long a)
+{
+ return alpha_mv.mv_ioportmap(a);
+}
+
+static inline void __iomem *generic_ioremap(unsigned long a, unsigned long s)
+{
+ return alpha_mv.mv_ioremap(a, s);
+}
+
+static inline void generic_iounmap(volatile void __iomem *a)
+{
+ return alpha_mv.mv_iounmap(a);
+}
+
+static inline int generic_is_ioaddr(unsigned long a)
+{
+ return alpha_mv.mv_is_ioaddr(a);
+}
+
+static inline int generic_is_mmio(const volatile void __iomem *a)
+{
+ return alpha_mv.mv_is_mmio(a);
+}
+
+#define __IO_PREFIX generic
+#define generic_trivial_rw_bw 0
+#define generic_trivial_rw_lq 0
+#define generic_trivial_io_bw 0
+#define generic_trivial_io_lq 0
+#define generic_trivial_iounmap 0
+
+#else
+
+#if defined(CONFIG_ALPHA_APECS)
+# include <asm/core_apecs.h>
+#elif defined(CONFIG_ALPHA_CIA)
+# include <asm/core_cia.h>
+#elif defined(CONFIG_ALPHA_IRONGATE)
+# include <asm/core_irongate.h>
+#elif defined(CONFIG_ALPHA_JENSEN)
+# include <asm/jensen.h>
+#elif defined(CONFIG_ALPHA_LCA)
+# include <asm/core_lca.h>
+#elif defined(CONFIG_ALPHA_MARVEL)
+# include <asm/core_marvel.h>
+#elif defined(CONFIG_ALPHA_MCPCIA)
+# include <asm/core_mcpcia.h>
+#elif defined(CONFIG_ALPHA_POLARIS)
+# include <asm/core_polaris.h>
+#elif defined(CONFIG_ALPHA_T2)
+# include <asm/core_t2.h>
+#elif defined(CONFIG_ALPHA_TSUNAMI)
+# include <asm/core_tsunami.h>
+#elif defined(CONFIG_ALPHA_TITAN)
+# include <asm/core_titan.h>
+#elif defined(CONFIG_ALPHA_WILDFIRE)
+# include <asm/core_wildfire.h>
+#else
+#error "What system is this?"
+#endif
+
+#endif /* GENERIC */
+
+/*
+ * We always have external versions of these routines.
+ */
+extern u8 inb(unsigned long port);
+extern u16 inw(unsigned long port);
+extern u32 inl(unsigned long port);
+extern void outb(u8 b, unsigned long port);
+extern void outw(u16 b, unsigned long port);
+extern void outl(u32 b, unsigned long port);
+#define inb inb
+#define inw inw
+#define inl inl
+#define outb outb
+#define outw outw
+#define outl outl
+
+extern u8 readb(const volatile void __iomem *addr);
+extern u16 readw(const volatile void __iomem *addr);
+extern u32 readl(const volatile void __iomem *addr);
+extern u64 readq(const volatile void __iomem *addr);
+extern void writeb(u8 b, volatile void __iomem *addr);
+extern void writew(u16 b, volatile void __iomem *addr);
+extern void writel(u32 b, volatile void __iomem *addr);
+extern void writeq(u64 b, volatile void __iomem *addr);
+#define readb readb
+#define readw readw
+#define readl readl
+#define readq readq
+#define writeb writeb
+#define writew writew
+#define writel writel
+#define writeq writeq
+
+extern u8 __raw_readb(const volatile void __iomem *addr);
+extern u16 __raw_readw(const volatile void __iomem *addr);
+extern u32 __raw_readl(const volatile void __iomem *addr);
+extern u64 __raw_readq(const volatile void __iomem *addr);
+extern void __raw_writeb(u8 b, volatile void __iomem *addr);
+extern void __raw_writew(u16 b, volatile void __iomem *addr);
+extern void __raw_writel(u32 b, volatile void __iomem *addr);
+extern void __raw_writeq(u64 b, volatile void __iomem *addr);
+#define __raw_readb __raw_readb
+#define __raw_readw __raw_readw
+#define __raw_readl __raw_readl
+#define __raw_readq __raw_readq
+#define __raw_writeb __raw_writeb
+#define __raw_writew __raw_writew
+#define __raw_writel __raw_writel
+#define __raw_writeq __raw_writeq
+
+/*
+ * Mapping from port numbers to __iomem space is pretty easy.
+ */
+
+/* These two have to be extern inline because of the extern prototype from
+ <asm-generic/iomap.h>. It is not legal to mix "extern" and "static" for
+ the same declaration. */
+extern inline void __iomem *ioport_map(unsigned long port, unsigned int size)
+{
+ return IO_CONCAT(__IO_PREFIX,ioportmap) (port);
+}
+
+extern inline void ioport_unmap(void __iomem *addr)
+{
+}
+
+#define ioport_map ioport_map
+#define ioport_unmap ioport_unmap
+
+static inline void __iomem *ioremap(unsigned long port, unsigned long size)
+{
+ return IO_CONCAT(__IO_PREFIX,ioremap) (port, size);
+}
+
+#define ioremap_wc ioremap
+#define ioremap_uc ioremap
+
+static inline void iounmap(volatile void __iomem *addr)
+{
+ IO_CONCAT(__IO_PREFIX,iounmap)(addr);
+}
+
+static inline int __is_ioaddr(unsigned long addr)
+{
+ return IO_CONCAT(__IO_PREFIX,is_ioaddr)(addr);
+}
+#define __is_ioaddr(a) __is_ioaddr((unsigned long)(a))
+
+static inline int __is_mmio(const volatile void __iomem *addr)
+{
+ return IO_CONCAT(__IO_PREFIX,is_mmio)(addr);
+}
+
+
+/*
+ * If the actual I/O bits are sufficiently trivial, then expand inline.
+ */
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
+extern inline unsigned int ioread8(const void __iomem *addr)
+{
+ unsigned int ret;
+ mb();
+ ret = IO_CONCAT(__IO_PREFIX,ioread8)(addr);
+ mb();
+ return ret;
+}
+
+extern inline unsigned int ioread16(const void __iomem *addr)
+{
+ unsigned int ret;
+ mb();
+ ret = IO_CONCAT(__IO_PREFIX,ioread16)(addr);
+ mb();
+ return ret;
+}
+
+extern inline void iowrite8(u8 b, void __iomem *addr)
+{
+ mb();
+ IO_CONCAT(__IO_PREFIX, iowrite8)(b, addr);
+}
+
+extern inline void iowrite16(u16 b, void __iomem *addr)
+{
+ mb();
+ IO_CONCAT(__IO_PREFIX, iowrite16)(b, addr);
+}
+
+extern inline u8 inb(unsigned long port)
+{
+ return ioread8(ioport_map(port, 1));
+}
+
+extern inline u16 inw(unsigned long port)
+{
+ return ioread16(ioport_map(port, 2));
+}
+
+extern inline void outb(u8 b, unsigned long port)
+{
+ iowrite8(b, ioport_map(port, 1));
+}
+
+extern inline void outw(u16 b, unsigned long port)
+{
+ iowrite16(b, ioport_map(port, 2));
+}
+#endif
+
+#define ioread8 ioread8
+#define ioread16 ioread16
+#define iowrite8 iowrite8
+#define iowrite16 iowrite16
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
+extern inline unsigned int ioread32(const void __iomem *addr)
+{
+ unsigned int ret;
+ mb();
+ ret = IO_CONCAT(__IO_PREFIX,ioread32)(addr);
+ mb();
+ return ret;
+}
+
+extern inline u64 ioread64(const void __iomem *addr)
+{
+ unsigned int ret;
+ mb();
+ ret = IO_CONCAT(__IO_PREFIX,ioread64)(addr);
+ mb();
+ return ret;
+}
+
+extern inline void iowrite32(u32 b, void __iomem *addr)
+{
+ mb();
+ IO_CONCAT(__IO_PREFIX, iowrite32)(b, addr);
+}
+
+extern inline void iowrite64(u64 b, void __iomem *addr)
+{
+ mb();
+ IO_CONCAT(__IO_PREFIX, iowrite64)(b, addr);
+}
+
+extern inline u32 inl(unsigned long port)
+{
+ return ioread32(ioport_map(port, 4));
+}
+
+extern inline void outl(u32 b, unsigned long port)
+{
+ iowrite32(b, ioport_map(port, 4));
+}
+#endif
+
+#define ioread32 ioread32
+#define ioread64 ioread64
+#define iowrite32 iowrite32
+#define iowrite64 iowrite64
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 1
+extern inline u8 __raw_readb(const volatile void __iomem *addr)
+{
+ return IO_CONCAT(__IO_PREFIX,readb)(addr);
+}
+
+extern inline u16 __raw_readw(const volatile void __iomem *addr)
+{
+ return IO_CONCAT(__IO_PREFIX,readw)(addr);
+}
+
+extern inline void __raw_writeb(u8 b, volatile void __iomem *addr)
+{
+ IO_CONCAT(__IO_PREFIX,writeb)(b, addr);
+}
+
+extern inline void __raw_writew(u16 b, volatile void __iomem *addr)
+{
+ IO_CONCAT(__IO_PREFIX,writew)(b, addr);
+}
+
+extern inline u8 readb(const volatile void __iomem *addr)
+{
+ u8 ret;
+ mb();
+ ret = __raw_readb(addr);
+ mb();
+ return ret;
+}
+
+extern inline u16 readw(const volatile void __iomem *addr)
+{
+ u16 ret;
+ mb();
+ ret = __raw_readw(addr);
+ mb();
+ return ret;
+}
+
+extern inline void writeb(u8 b, volatile void __iomem *addr)
+{
+ mb();
+ __raw_writeb(b, addr);
+}
+
+extern inline void writew(u16 b, volatile void __iomem *addr)
+{
+ mb();
+ __raw_writew(b, addr);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_lq) == 1
+extern inline u32 __raw_readl(const volatile void __iomem *addr)
+{
+ return IO_CONCAT(__IO_PREFIX,readl)(addr);
+}
+
+extern inline u64 __raw_readq(const volatile void __iomem *addr)
+{
+ return IO_CONCAT(__IO_PREFIX,readq)(addr);
+}
+
+extern inline void __raw_writel(u32 b, volatile void __iomem *addr)
+{
+ IO_CONCAT(__IO_PREFIX,writel)(b, addr);
+}
+
+extern inline void __raw_writeq(u64 b, volatile void __iomem *addr)
+{
+ IO_CONCAT(__IO_PREFIX,writeq)(b, addr);
+}
+
+extern inline u32 readl(const volatile void __iomem *addr)
+{
+ u32 ret;
+ mb();
+ ret = __raw_readl(addr);
+ mb();
+ return ret;
+}
+
+extern inline u64 readq(const volatile void __iomem *addr)
+{
+ u64 ret;
+ mb();
+ ret = __raw_readq(addr);
+ mb();
+ return ret;
+}
+
+extern inline void writel(u32 b, volatile void __iomem *addr)
+{
+ mb();
+ __raw_writel(b, addr);
+}
+
+extern inline void writeq(u64 b, volatile void __iomem *addr)
+{
+ mb();
+ __raw_writeq(b, addr);
+}
+#endif
+
+#define ioread16be(p) swab16(ioread16(p))
+#define ioread32be(p) swab32(ioread32(p))
+#define iowrite16be(v,p) iowrite16(swab16(v), (p))
+#define iowrite32be(v,p) iowrite32(swab32(v), (p))
+
+#define inb_p inb
+#define inw_p inw
+#define inl_p inl
+#define outb_p outb
+#define outw_p outw
+#define outl_p outl
+
+extern u8 readb_relaxed(const volatile void __iomem *addr);
+extern u16 readw_relaxed(const volatile void __iomem *addr);
+extern u32 readl_relaxed(const volatile void __iomem *addr);
+extern u64 readq_relaxed(const volatile void __iomem *addr);
+#define readb_relaxed readb_relaxed
+#define readw_relaxed readw_relaxed
+#define readl_relaxed readl_relaxed
+#define readq_relaxed readq_relaxed
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
+extern inline u8 readb_relaxed(const volatile void __iomem *addr)
+{
+ mb();
+ return __raw_readb(addr);
+}
+
+extern inline u16 readw_relaxed(const volatile void __iomem *addr)
+{
+ mb();
+ return __raw_readw(addr);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
+extern inline u32 readl_relaxed(const volatile void __iomem *addr)
+{
+ mb();
+ return __raw_readl(addr);
+}
+
+extern inline u64 readq_relaxed(const volatile void __iomem *addr)
+{
+ mb();
+ return __raw_readq(addr);
+}
+#endif
+
+#define writeb_relaxed writeb
+#define writew_relaxed writew
+#define writel_relaxed writel
+#define writeq_relaxed writeq
+
+/*
+ * String version of IO memory access ops:
+ */
+extern void memcpy_fromio(void *, const volatile void __iomem *, long);
+extern void memcpy_toio(volatile void __iomem *, const void *, long);
+extern void _memset_c_io(volatile void __iomem *, unsigned long, long);
+
+static inline void memset_io(volatile void __iomem *addr, u8 c, long len)
+{
+ _memset_c_io(addr, 0x0101010101010101UL * c, len);
+}
+
+#define __HAVE_ARCH_MEMSETW_IO
+static inline void memsetw_io(volatile void __iomem *addr, u16 c, long len)
+{
+ _memset_c_io(addr, 0x0001000100010001UL * c, len);
+}
+
+#define memset_io memset_io
+#define memcpy_fromio memcpy_fromio
+#define memcpy_toio memcpy_toio
+
+/*
+ * String versions of in/out ops:
+ */
+extern void insb (unsigned long port, void *dst, unsigned long count);
+extern void insw (unsigned long port, void *dst, unsigned long count);
+extern void insl (unsigned long port, void *dst, unsigned long count);
+extern void outsb (unsigned long port, const void *src, unsigned long count);
+extern void outsw (unsigned long port, const void *src, unsigned long count);
+extern void outsl (unsigned long port, const void *src, unsigned long count);
+
+#define insb insb
+#define insw insw
+#define insl insl
+#define outsb outsb
+#define outsw outsw
+#define outsl outsl
+
+/*
+ * The Alpha Jensen hardware for some rather strange reason puts
+ * the RTC clock at 0x170 instead of 0x70. Probably due to some
+ * misguided idea about using 0x70 for NMI stuff.
+ *
+ * These defines will override the defaults when doing RTC queries
+ */
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define RTC_PORT(x) ((x) + alpha_mv.rtc_port)
+#else
+# ifdef CONFIG_ALPHA_JENSEN
+# define RTC_PORT(x) (0x170+(x))
+# else
+# define RTC_PORT(x) (0x70 + (x))
+# endif
+#endif
+#define RTC_ALWAYS_BCD 0
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p) __va(p)
+
+/*
+ * These get provided from <asm-generic/iomap.h> since alpha does not
+ * select GENERIC_IOMAP.
+ */
+#define ioread64 ioread64
+#define iowrite64 iowrite64
+#define ioread64be ioread64be
+#define iowrite64be iowrite64be
+#define ioread8_rep ioread8_rep
+#define ioread16_rep ioread16_rep
+#define ioread32_rep ioread32_rep
+#define iowrite8_rep iowrite8_rep
+#define iowrite16_rep iowrite16_rep
+#define iowrite32_rep iowrite32_rep
+#define pci_iounmap pci_iounmap
+
+#include <asm-generic/io.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_IO_H */
diff --git a/arch/alpha/include/asm/io_trivial.h b/arch/alpha/include/asm/io_trivial.h
new file mode 100644
index 0000000000..00032093bc
--- /dev/null
+++ b/arch/alpha/include/asm/io_trivial.h
@@ -0,0 +1,144 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Trivial implementations of basic i/o routines. Assumes that all
+ of the hard work has been done by ioremap and ioportmap, and that
+ access to i/o space is linear. */
+
+/* This file may be included multiple times. */
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
+__EXTERN_INLINE u8
+IO_CONCAT(__IO_PREFIX,ioread8)(const void __iomem *a)
+{
+ return __kernel_ldbu(*(const volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE u16
+IO_CONCAT(__IO_PREFIX,ioread16)(const void __iomem *a)
+{
+ return __kernel_ldwu(*(const volatile u16 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite8)(u8 b, void __iomem *a)
+{
+ __kernel_stb(b, *(volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite16)(u16 b, void __iomem *a)
+{
+ __kernel_stw(b, *(volatile u16 __force *)a);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
+__EXTERN_INLINE u32
+IO_CONCAT(__IO_PREFIX,ioread32)(const void __iomem *a)
+{
+ return *(const volatile u32 __force *)a;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite32)(u32 b, void __iomem *a)
+{
+ *(volatile u32 __force *)a = b;
+}
+
+__EXTERN_INLINE u64
+IO_CONCAT(__IO_PREFIX,ioread64)(const void __iomem *a)
+{
+ return *(const volatile u64 __force *)a;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite64)(u64 b, void __iomem *a)
+{
+ *(volatile u64 __force *)a = b;
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 1
+__EXTERN_INLINE u8
+IO_CONCAT(__IO_PREFIX,readb)(const volatile void __iomem *a)
+{
+ return __kernel_ldbu(*(const volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE u16
+IO_CONCAT(__IO_PREFIX,readw)(const volatile void __iomem *a)
+{
+ return __kernel_ldwu(*(const volatile u16 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writeb)(u8 b, volatile void __iomem *a)
+{
+ __kernel_stb(b, *(volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writew)(u16 b, volatile void __iomem *a)
+{
+ __kernel_stw(b, *(volatile u16 __force *)a);
+}
+#elif IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 2
+__EXTERN_INLINE u8
+IO_CONCAT(__IO_PREFIX,readb)(const volatile void __iomem *a)
+{
+ const void __iomem *addr = (const void __iomem *)a;
+ return IO_CONCAT(__IO_PREFIX,ioread8)(addr);
+}
+
+__EXTERN_INLINE u16
+IO_CONCAT(__IO_PREFIX,readw)(const volatile void __iomem *a)
+{
+ const void __iomem *addr = (const void __iomem *)a;
+ return IO_CONCAT(__IO_PREFIX,ioread16)(addr);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writeb)(u8 b, volatile void __iomem *a)
+{
+ void __iomem *addr = (void __iomem *)a;
+ IO_CONCAT(__IO_PREFIX,iowrite8)(b, addr);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writew)(u16 b, volatile void __iomem *a)
+{
+ void __iomem *addr = (void __iomem *)a;
+ IO_CONCAT(__IO_PREFIX,iowrite16)(b, addr);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_lq) == 1
+__EXTERN_INLINE u32
+IO_CONCAT(__IO_PREFIX,readl)(const volatile void __iomem *a)
+{
+ return *(const volatile u32 __force *)a;
+}
+
+__EXTERN_INLINE u64
+IO_CONCAT(__IO_PREFIX,readq)(const volatile void __iomem *a)
+{
+ return *(const volatile u64 __force *)a;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writel)(u32 b, volatile void __iomem *a)
+{
+ *(volatile u32 __force *)a = b;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writeq)(u64 b, volatile void __iomem *a)
+{
+ *(volatile u64 __force *)a = b;
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_iounmap)
+__EXTERN_INLINE void IO_CONCAT(__IO_PREFIX,iounmap)(volatile void __iomem *a)
+{
+}
+#endif
diff --git a/arch/alpha/include/asm/irq.h b/arch/alpha/include/asm/irq.h
new file mode 100644
index 0000000000..432402c8e4
--- /dev/null
+++ b/arch/alpha/include/asm/irq.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_IRQ_H
+#define _ALPHA_IRQ_H
+
+/*
+ * linux/include/alpha/irq.h
+ *
+ * (C) 1994 Linus Torvalds
+ */
+
+#include <linux/linkage.h>
+
+#if defined(CONFIG_ALPHA_GENERIC)
+
+/* Here NR_IRQS is not exact, but rather an upper bound. This is used
+ many places throughout the kernel to size static arrays. That's ok,
+ we'll use alpha_mv.nr_irqs when we want the real thing. */
+
+/* When LEGACY_START_ADDRESS is selected, we leave out:
+ TITAN
+ WILDFIRE
+ MARVEL
+
+ This helps keep the kernel object size reasonable for the majority
+ of machines.
+*/
+
+# if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS)
+# define NR_IRQS (128) /* max is RAWHIDE/TAKARA */
+# else
+# define NR_IRQS (32768 + 16) /* marvel - 32 pids */
+# endif
+
+#elif defined(CONFIG_ALPHA_CABRIOLET) || \
+ defined(CONFIG_ALPHA_EB66P) || \
+ defined(CONFIG_ALPHA_EB164) || \
+ defined(CONFIG_ALPHA_PC164) || \
+ defined(CONFIG_ALPHA_LX164)
+# define NR_IRQS 35
+
+#elif defined(CONFIG_ALPHA_EB66) || \
+ defined(CONFIG_ALPHA_EB64P) || \
+ defined(CONFIG_ALPHA_MIKASA)
+# define NR_IRQS 32
+
+#elif defined(CONFIG_ALPHA_ALCOR) || \
+ defined(CONFIG_ALPHA_MIATA) || \
+ defined(CONFIG_ALPHA_RUFFIAN) || \
+ defined(CONFIG_ALPHA_RX164) || \
+ defined(CONFIG_ALPHA_NORITAKE)
+# define NR_IRQS 48
+
+#elif defined(CONFIG_ALPHA_SABLE) || \
+ defined(CONFIG_ALPHA_SX164)
+# define NR_IRQS 40
+
+#elif defined(CONFIG_ALPHA_DP264) || \
+ defined(CONFIG_ALPHA_LYNX) || \
+ defined(CONFIG_ALPHA_SHARK)
+# define NR_IRQS 64
+
+#elif defined(CONFIG_ALPHA_TITAN)
+#define NR_IRQS 80
+
+#elif defined(CONFIG_ALPHA_RAWHIDE) || \
+ defined(CONFIG_ALPHA_TAKARA) || \
+ defined(CONFIG_ALPHA_EIGER)
+# define NR_IRQS 128
+
+#elif defined(CONFIG_ALPHA_WILDFIRE)
+# define NR_IRQS 2048 /* enuff for 8 QBBs */
+
+#elif defined(CONFIG_ALPHA_MARVEL)
+# define NR_IRQS (32768 + 16) /* marvel - 32 pids*/
+
+#else /* everyone else */
+# define NR_IRQS 16
+#endif
+
+static __inline__ int irq_canonicalize(int irq)
+{
+ /*
+ * XXX is this true for all Alpha's? The old serial driver
+ * did it this way for years without any complaints, so....
+ */
+ return ((irq == 2) ? 9 : irq);
+}
+
+struct pt_regs;
+extern void (*perf_irq)(unsigned long, struct pt_regs *);
+
+#endif /* _ALPHA_IRQ_H */
diff --git a/arch/alpha/include/asm/irqflags.h b/arch/alpha/include/asm/irqflags.h
new file mode 100644
index 0000000000..9f25d4e0d3
--- /dev/null
+++ b/arch/alpha/include/asm/irqflags.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_IRQFLAGS_H
+#define __ALPHA_IRQFLAGS_H
+
+#include <asm/pal.h>
+
+#define IPL_MIN 0
+#define IPL_SW0 1
+#define IPL_SW1 2
+#define IPL_DEV0 3
+#define IPL_DEV1 4
+#define IPL_TIMER 5
+#define IPL_PERF 6
+#define IPL_POWERFAIL 6
+#define IPL_MCHECK 7
+#define IPL_MAX 7
+
+#ifdef CONFIG_ALPHA_BROKEN_IRQ_MASK
+#undef IPL_MIN
+#define IPL_MIN __min_ipl
+extern int __min_ipl;
+#endif
+
+#define getipl() (rdps() & 7)
+#define setipl(ipl) ((void) swpipl(ipl))
+
+static inline unsigned long arch_local_save_flags(void)
+{
+ return rdps();
+}
+
+static inline void arch_local_irq_disable(void)
+{
+ setipl(IPL_MAX);
+ barrier();
+}
+
+static inline unsigned long arch_local_irq_save(void)
+{
+ unsigned long flags = swpipl(IPL_MAX);
+ barrier();
+ return flags;
+}
+
+static inline void arch_local_irq_enable(void)
+{
+ barrier();
+ setipl(IPL_MIN);
+}
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+ barrier();
+ setipl(flags);
+ barrier();
+}
+
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
+{
+ return flags == IPL_MAX;
+}
+
+static inline bool arch_irqs_disabled(void)
+{
+ return arch_irqs_disabled_flags(getipl());
+}
+
+#endif /* __ALPHA_IRQFLAGS_H */
diff --git a/arch/alpha/include/asm/jensen.h b/arch/alpha/include/asm/jensen.h
new file mode 100644
index 0000000000..66eb049eb4
--- /dev/null
+++ b/arch/alpha/include/asm/jensen.h
@@ -0,0 +1,363 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_JENSEN_H
+#define __ALPHA_JENSEN_H
+
+#include <asm/compiler.h>
+
+/*
+ * Defines for the AlphaPC EISA IO and memory address space.
+ */
+
+/*
+ * NOTE! The memory operations do not set any memory barriers, as it's
+ * not needed for cases like a frame buffer that is essentially memory-like.
+ * You need to do them by hand if the operations depend on ordering.
+ *
+ * Similarly, the port IO operations do a "mb" only after a write operation:
+ * if an mb is needed before (as in the case of doing memory mapped IO
+ * first, and then a port IO operation to the same device), it needs to be
+ * done by hand.
+ *
+ * After the above has bitten me 100 times, I'll give up and just do the
+ * mb all the time, but right now I'm hoping this will work out. Avoiding
+ * mb's may potentially be a noticeable speed improvement, but I can't
+ * honestly say I've tested it.
+ *
+ * Handling interrupts that need to do mb's to synchronize to non-interrupts
+ * is another fun race area. Don't do it (because if you do, I'll have to
+ * do *everything* with interrupts disabled, ugh).
+ */
+
+/*
+ * EISA Interrupt Acknowledge address
+ */
+#define EISA_INTA (IDENT_ADDR + 0x100000000UL)
+
+/*
+ * FEPROM addresses
+ */
+#define EISA_FEPROM0 (IDENT_ADDR + 0x180000000UL)
+#define EISA_FEPROM1 (IDENT_ADDR + 0x1A0000000UL)
+
+/*
+ * VL82C106 base address
+ */
+#define EISA_VL82C106 (IDENT_ADDR + 0x1C0000000UL)
+
+/*
+ * EISA "Host Address Extension" address (bits 25-31 of the EISA address)
+ */
+#define EISA_HAE (IDENT_ADDR + 0x1D0000000UL)
+
+/*
+ * "SYSCTL" register address
+ */
+#define EISA_SYSCTL (IDENT_ADDR + 0x1E0000000UL)
+
+/*
+ * "spare" register address
+ */
+#define EISA_SPARE (IDENT_ADDR + 0x1F0000000UL)
+
+/*
+ * EISA memory address offset
+ */
+#define EISA_MEM (IDENT_ADDR + 0x200000000UL)
+
+/*
+ * EISA IO address offset
+ */
+#define EISA_IO (IDENT_ADDR + 0x300000000UL)
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * Handle the "host address register". This needs to be set
+ * to the high 7 bits of the EISA address. This is also needed
+ * for EISA IO addresses, which are only 16 bits wide (the
+ * hae needs to be set to 0).
+ *
+ * HAE isn't needed for the local IO operations, though.
+ */
+
+#define JENSEN_HAE_ADDRESS EISA_HAE
+#define JENSEN_HAE_MASK 0x1ffffff
+
+__EXTERN_INLINE void jensen_set_hae(unsigned long addr)
+{
+ /* hae on the Jensen is bits 31:25 shifted right */
+ addr >>= 25;
+ if (addr != alpha_mv.hae_cache)
+ set_hae(addr);
+}
+
+#define vuip volatile unsigned int *
+#define vulp volatile unsigned long *
+
+/*
+ * IO functions
+ *
+ * The "local" functions are those that don't go out to the EISA bus,
+ * but instead act on the VL82C106 chip directly.. This is mainly the
+ * keyboard, RTC, printer and first two serial lines..
+ *
+ * The local stuff makes for some complications, but it seems to be
+ * gone in the PCI version. I hope I can get DEC suckered^H^H^H^H^H^H^H^H
+ * convinced that I need one of the newer machines.
+ */
+
+__EXTERN_INLINE unsigned int jensen_local_inb(unsigned long addr)
+{
+ return 0xff & *(vuip)((addr << 9) + EISA_VL82C106);
+}
+
+__EXTERN_INLINE void jensen_local_outb(u8 b, unsigned long addr)
+{
+ *(vuip)((addr << 9) + EISA_VL82C106) = b;
+ mb();
+}
+
+__EXTERN_INLINE unsigned int jensen_bus_inb(unsigned long addr)
+{
+ long result;
+
+ jensen_set_hae(0);
+ result = *(volatile int *)((addr << 7) + EISA_IO + 0x00);
+ return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void jensen_bus_outb(u8 b, unsigned long addr)
+{
+ jensen_set_hae(0);
+ *(vuip)((addr << 7) + EISA_IO + 0x00) = b * 0x01010101;
+ mb();
+}
+
+/*
+ * It seems gcc is not very good at optimizing away logical
+ * operations that result in operations across inline functions.
+ * Which is why this is a macro.
+ */
+
+#define jensen_is_local(addr) ( \
+/* keyboard */ (addr == 0x60 || addr == 0x64) || \
+/* RTC */ (addr == 0x170 || addr == 0x171) || \
+/* mb COM2 */ (addr >= 0x2f8 && addr <= 0x2ff) || \
+/* mb LPT1 */ (addr >= 0x3bc && addr <= 0x3be) || \
+/* mb COM2 */ (addr >= 0x3f8 && addr <= 0x3ff))
+
+__EXTERN_INLINE u8 jensen_inb(unsigned long addr)
+{
+ if (jensen_is_local(addr))
+ return jensen_local_inb(addr);
+ else
+ return jensen_bus_inb(addr);
+}
+
+__EXTERN_INLINE void jensen_outb(u8 b, unsigned long addr)
+{
+ if (jensen_is_local(addr))
+ jensen_local_outb(b, addr);
+ else
+ jensen_bus_outb(b, addr);
+}
+
+__EXTERN_INLINE u16 jensen_inw(unsigned long addr)
+{
+ long result;
+
+ jensen_set_hae(0);
+ result = *(volatile int *) ((addr << 7) + EISA_IO + 0x20);
+ result >>= (addr & 3) * 8;
+ return 0xffffUL & result;
+}
+
+__EXTERN_INLINE u32 jensen_inl(unsigned long addr)
+{
+ jensen_set_hae(0);
+ return *(vuip) ((addr << 7) + EISA_IO + 0x60);
+}
+
+__EXTERN_INLINE u64 jensen_inq(unsigned long addr)
+{
+ jensen_set_hae(0);
+ return *(vulp) ((addr << 7) + EISA_IO + 0x60);
+}
+
+__EXTERN_INLINE void jensen_outw(u16 b, unsigned long addr)
+{
+ jensen_set_hae(0);
+ *(vuip) ((addr << 7) + EISA_IO + 0x20) = b * 0x00010001;
+ mb();
+}
+
+__EXTERN_INLINE void jensen_outl(u32 b, unsigned long addr)
+{
+ jensen_set_hae(0);
+ *(vuip) ((addr << 7) + EISA_IO + 0x60) = b;
+ mb();
+}
+
+__EXTERN_INLINE void jensen_outq(u64 b, unsigned long addr)
+{
+ jensen_set_hae(0);
+ *(vulp) ((addr << 7) + EISA_IO + 0x60) = b;
+ mb();
+}
+
+/*
+ * Memory functions.
+ */
+
+__EXTERN_INLINE u8 jensen_readb(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ long result;
+
+ jensen_set_hae(addr);
+ addr &= JENSEN_HAE_MASK;
+ result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x00);
+ result >>= (addr & 3) * 8;
+ return 0xffUL & result;
+}
+
+__EXTERN_INLINE u16 jensen_readw(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ long result;
+
+ jensen_set_hae(addr);
+ addr &= JENSEN_HAE_MASK;
+ result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x20);
+ result >>= (addr & 3) * 8;
+ return 0xffffUL & result;
+}
+
+__EXTERN_INLINE u32 jensen_readl(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ jensen_set_hae(addr);
+ addr &= JENSEN_HAE_MASK;
+ return *(vuip) ((addr << 7) + EISA_MEM + 0x60);
+}
+
+__EXTERN_INLINE u64 jensen_readq(const volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ unsigned long r0, r1;
+
+ jensen_set_hae(addr);
+ addr &= JENSEN_HAE_MASK;
+ addr = (addr << 7) + EISA_MEM + 0x60;
+ r0 = *(vuip) (addr);
+ r1 = *(vuip) (addr + (4 << 7));
+ return r1 << 32 | r0;
+}
+
+__EXTERN_INLINE void jensen_writeb(u8 b, volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ jensen_set_hae(addr);
+ addr &= JENSEN_HAE_MASK;
+ *(vuip) ((addr << 7) + EISA_MEM + 0x00) = b * 0x01010101;
+}
+
+__EXTERN_INLINE void jensen_writew(u16 b, volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ jensen_set_hae(addr);
+ addr &= JENSEN_HAE_MASK;
+ *(vuip) ((addr << 7) + EISA_MEM + 0x20) = b * 0x00010001;
+}
+
+__EXTERN_INLINE void jensen_writel(u32 b, volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ jensen_set_hae(addr);
+ addr &= JENSEN_HAE_MASK;
+ *(vuip) ((addr << 7) + EISA_MEM + 0x60) = b;
+}
+
+__EXTERN_INLINE void jensen_writeq(u64 b, volatile void __iomem *xaddr)
+{
+ unsigned long addr = (unsigned long) xaddr;
+ jensen_set_hae(addr);
+ addr &= JENSEN_HAE_MASK;
+ addr = (addr << 7) + EISA_MEM + 0x60;
+ *(vuip) (addr) = b;
+ *(vuip) (addr + (4 << 7)) = b >> 32;
+}
+
+__EXTERN_INLINE void __iomem *jensen_ioportmap(unsigned long addr)
+{
+ return (void __iomem *)addr;
+}
+
+__EXTERN_INLINE void __iomem *jensen_ioremap(unsigned long addr,
+ unsigned long size)
+{
+ return (void __iomem *)(addr + 0x100000000ul);
+}
+
+__EXTERN_INLINE int jensen_is_ioaddr(unsigned long addr)
+{
+ return (long)addr >= 0;
+}
+
+__EXTERN_INLINE int jensen_is_mmio(const volatile void __iomem *addr)
+{
+ return (unsigned long)addr >= 0x100000000ul;
+}
+
+/* New-style ioread interface. All the routines are so ugly for Jensen
+ that it doesn't make sense to merge them. */
+
+#define IOPORT(OS, NS) \
+__EXTERN_INLINE u##NS jensen_ioread##NS(const void __iomem *xaddr) \
+{ \
+ if (jensen_is_mmio(xaddr)) \
+ return jensen_read##OS(xaddr - 0x100000000ul); \
+ else \
+ return jensen_in##OS((unsigned long)xaddr); \
+} \
+__EXTERN_INLINE void jensen_iowrite##NS(u##NS b, void __iomem *xaddr) \
+{ \
+ if (jensen_is_mmio(xaddr)) \
+ jensen_write##OS(b, xaddr - 0x100000000ul); \
+ else \
+ jensen_out##OS(b, (unsigned long)xaddr); \
+}
+
+IOPORT(b, 8)
+IOPORT(w, 16)
+IOPORT(l, 32)
+IOPORT(q, 64)
+
+#undef IOPORT
+
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX jensen
+#define jensen_trivial_rw_bw 0
+#define jensen_trivial_rw_lq 0
+#define jensen_trivial_io_bw 0
+#define jensen_trivial_io_lq 0
+#define jensen_trivial_iounmap 1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_JENSEN_H */
diff --git a/arch/alpha/include/asm/linkage.h b/arch/alpha/include/asm/linkage.h
new file mode 100644
index 0000000000..aa8661fa60
--- /dev/null
+++ b/arch/alpha/include/asm/linkage.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+#define cond_syscall(x) asm(".weak\t" #x "\n" #x " = sys_ni_syscall")
+#define SYSCALL_ALIAS(alias, name) \
+ asm ( #alias " = " #name "\n\t.globl " #alias)
+
+#endif
diff --git a/arch/alpha/include/asm/local.h b/arch/alpha/include/asm/local.h
new file mode 100644
index 0000000000..0fcaad642c
--- /dev/null
+++ b/arch/alpha/include/asm/local.h
@@ -0,0 +1,110 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_LOCAL_H
+#define _ALPHA_LOCAL_H
+
+#include <linux/percpu.h>
+#include <linux/atomic.h>
+
+typedef struct
+{
+ atomic_long_t a;
+} local_t;
+
+#define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
+#define local_read(l) atomic_long_read(&(l)->a)
+#define local_set(l,i) atomic_long_set(&(l)->a, (i))
+#define local_inc(l) atomic_long_inc(&(l)->a)
+#define local_dec(l) atomic_long_dec(&(l)->a)
+#define local_add(i,l) atomic_long_add((i),(&(l)->a))
+#define local_sub(i,l) atomic_long_sub((i),(&(l)->a))
+
+static __inline__ long local_add_return(long i, local_t * l)
+{
+ long temp, result;
+ __asm__ __volatile__(
+ "1: ldq_l %0,%1\n"
+ " addq %0,%3,%2\n"
+ " addq %0,%3,%0\n"
+ " stq_c %0,%1\n"
+ " beq %0,2f\n"
+ ".subsection 2\n"
+ "2: br 1b\n"
+ ".previous"
+ :"=&r" (temp), "=m" (l->a.counter), "=&r" (result)
+ :"Ir" (i), "m" (l->a.counter) : "memory");
+ return result;
+}
+
+static __inline__ long local_sub_return(long i, local_t * l)
+{
+ long temp, result;
+ __asm__ __volatile__(
+ "1: ldq_l %0,%1\n"
+ " subq %0,%3,%2\n"
+ " subq %0,%3,%0\n"
+ " stq_c %0,%1\n"
+ " beq %0,2f\n"
+ ".subsection 2\n"
+ "2: br 1b\n"
+ ".previous"
+ :"=&r" (temp), "=m" (l->a.counter), "=&r" (result)
+ :"Ir" (i), "m" (l->a.counter) : "memory");
+ return result;
+}
+
+static __inline__ long local_cmpxchg(local_t *l, long old, long new)
+{
+ return cmpxchg_local(&l->a.counter, old, new);
+}
+
+static __inline__ bool local_try_cmpxchg(local_t *l, long *old, long new)
+{
+ return try_cmpxchg_local(&l->a.counter, (s64 *)old, new);
+}
+
+#define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
+
+/**
+ * local_add_unless - add unless the number is a given value
+ * @l: pointer of type local_t
+ * @a: the amount to add to l...
+ * @u: ...unless l is equal to u.
+ *
+ * Atomically adds @a to @l, so long as it was not @u.
+ * Returns non-zero if @l was not @u, and zero otherwise.
+ */
+#define local_add_unless(l, a, u) \
+({ \
+ long c, old; \
+ c = local_read(l); \
+ for (;;) { \
+ if (unlikely(c == (u))) \
+ break; \
+ old = local_cmpxchg((l), c, c + (a)); \
+ if (likely(old == c)) \
+ break; \
+ c = old; \
+ } \
+ c != (u); \
+})
+#define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+
+#define local_add_negative(a, l) (local_add_return((a), (l)) < 0)
+
+#define local_dec_return(l) local_sub_return(1,(l))
+
+#define local_inc_return(l) local_add_return(1,(l))
+
+#define local_sub_and_test(i,l) (local_sub_return((i), (l)) == 0)
+
+#define local_inc_and_test(l) (local_add_return(1, (l)) == 0)
+
+#define local_dec_and_test(l) (local_sub_return(1, (l)) == 0)
+
+/* Verify if faster than atomic ops */
+#define __local_inc(l) ((l)->a.counter++)
+#define __local_dec(l) ((l)->a.counter++)
+#define __local_add(i,l) ((l)->a.counter+=(i))
+#define __local_sub(i,l) ((l)->a.counter-=(i))
+
+#endif /* _ALPHA_LOCAL_H */
diff --git a/arch/alpha/include/asm/machvec.h b/arch/alpha/include/asm/machvec.h
new file mode 100644
index 0000000000..8623f995d3
--- /dev/null
+++ b/arch/alpha/include/asm/machvec.h
@@ -0,0 +1,139 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MACHVEC_H
+#define __ALPHA_MACHVEC_H 1
+
+#include <linux/types.h>
+
+/*
+ * This file gets pulled in by asm/io.h from user space. We don't
+ * want most of this escaping.
+ */
+
+#ifdef __KERNEL__
+
+/* The following structure vectors all of the I/O and IRQ manipulation
+ from the generic kernel to the hardware specific backend. */
+
+struct task_struct;
+struct mm_struct;
+struct vm_area_struct;
+struct linux_hose_info;
+struct pci_dev;
+struct pci_ops;
+struct pci_controller;
+struct _alpha_agp_info;
+struct rtc_time;
+
+struct alpha_machine_vector
+{
+ /* This "belongs" down below with the rest of the runtime
+ variables, but it is convenient for entry.S if these
+ two slots are at the beginning of the struct. */
+ unsigned long hae_cache;
+ unsigned long *hae_register;
+
+ int nr_irqs;
+ int rtc_port;
+ int rtc_boot_cpu_only;
+ unsigned int max_asn;
+ unsigned long max_isa_dma_address;
+ unsigned long irq_probe_mask;
+ unsigned long iack_sc;
+ unsigned long min_io_address;
+ unsigned long min_mem_address;
+ unsigned long pci_dac_offset;
+
+ void (*mv_pci_tbi)(struct pci_controller *hose,
+ dma_addr_t start, dma_addr_t end);
+
+ u8 (*mv_ioread8)(const void __iomem *);
+ u16 (*mv_ioread16)(const void __iomem *);
+ u32 (*mv_ioread32)(const void __iomem *);
+ u64 (*mv_ioread64)(const void __iomem *);
+
+ void (*mv_iowrite8)(u8, void __iomem *);
+ void (*mv_iowrite16)(u16, void __iomem *);
+ void (*mv_iowrite32)(u32, void __iomem *);
+ void (*mv_iowrite64)(u64, void __iomem *);
+
+ u8 (*mv_readb)(const volatile void __iomem *);
+ u16 (*mv_readw)(const volatile void __iomem *);
+ u32 (*mv_readl)(const volatile void __iomem *);
+ u64 (*mv_readq)(const volatile void __iomem *);
+
+ void (*mv_writeb)(u8, volatile void __iomem *);
+ void (*mv_writew)(u16, volatile void __iomem *);
+ void (*mv_writel)(u32, volatile void __iomem *);
+ void (*mv_writeq)(u64, volatile void __iomem *);
+
+ void __iomem *(*mv_ioportmap)(unsigned long);
+ void __iomem *(*mv_ioremap)(unsigned long, unsigned long);
+ void (*mv_iounmap)(volatile void __iomem *);
+ int (*mv_is_ioaddr)(unsigned long);
+ int (*mv_is_mmio)(const volatile void __iomem *);
+
+ void (*mv_switch_mm)(struct mm_struct *, struct mm_struct *,
+ struct task_struct *);
+ void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *);
+
+ void (*mv_flush_tlb_current)(struct mm_struct *);
+ void (*mv_flush_tlb_current_page)(struct mm_struct * mm,
+ struct vm_area_struct *vma,
+ unsigned long addr);
+
+ void (*update_irq_hw)(unsigned long, unsigned long, int);
+ void (*ack_irq)(unsigned long);
+ void (*device_interrupt)(unsigned long vector);
+ void (*machine_check)(unsigned long vector, unsigned long la);
+
+ void (*smp_callin)(void);
+ void (*init_arch)(void);
+ void (*init_irq)(void);
+ void (*init_rtc)(void);
+ void (*init_pci)(void);
+ void (*kill_arch)(int);
+
+ u8 (*pci_swizzle)(struct pci_dev *, u8 *);
+ int (*pci_map_irq)(const struct pci_dev *, u8, u8);
+ struct pci_ops *pci_ops;
+
+ struct _alpha_agp_info *(*agp_info)(void);
+
+ const char *vector_name;
+
+ /* System specific parameters. */
+ union {
+ struct {
+ unsigned long gru_int_req_bits;
+ } cia;
+
+ struct {
+ unsigned long gamma_bias;
+ } t2;
+
+ struct {
+ unsigned int route_tab;
+ } sio;
+ } sys;
+};
+
+extern struct alpha_machine_vector alpha_mv;
+
+#ifdef CONFIG_ALPHA_GENERIC
+extern int alpha_using_srm;
+extern int alpha_using_qemu;
+#else
+# ifdef CONFIG_ALPHA_SRM
+# define alpha_using_srm 1
+# else
+# define alpha_using_srm 0
+# endif
+# ifdef CONFIG_ALPHA_QEMU
+# define alpha_using_qemu 1
+# else
+# define alpha_using_qemu 0
+# endif
+#endif /* GENERIC */
+
+#endif /* __KERNEL__ */
+#endif /* __ALPHA_MACHVEC_H */
diff --git a/arch/alpha/include/asm/mc146818rtc.h b/arch/alpha/include/asm/mc146818rtc.h
new file mode 100644
index 0000000000..2154fd4f78
--- /dev/null
+++ b/arch/alpha/include/asm/mc146818rtc.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Machine dependent access functions for RTC registers.
+ */
+#ifndef __ASM_ALPHA_MC146818RTC_H
+#define __ASM_ALPHA_MC146818RTC_H
+
+#include <asm/io.h>
+
+#ifndef RTC_PORT
+#define RTC_PORT(x) (0x70 + (x))
+#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
+#endif
+
+/*
+ * The yet supported machines all access the RTC index register via
+ * an ISA port access but the way to access the date register differs ...
+ */
+#define CMOS_READ(addr) ({ \
+outb_p((addr),RTC_PORT(0)); \
+inb_p(RTC_PORT(1)); \
+})
+#define CMOS_WRITE(val, addr) ({ \
+outb_p((addr),RTC_PORT(0)); \
+outb_p((val),RTC_PORT(1)); \
+})
+
+#endif /* __ASM_ALPHA_MC146818RTC_H */
diff --git a/arch/alpha/include/asm/mce.h b/arch/alpha/include/asm/mce.h
new file mode 100644
index 0000000000..200e04e98a
--- /dev/null
+++ b/arch/alpha/include/asm/mce.h
@@ -0,0 +1,84 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MCE_H
+#define __ALPHA_MCE_H
+
+/*
+ * This is the logout header that should be common to all platforms
+ * (assuming they are running OSF/1 PALcode, I guess).
+ */
+struct el_common {
+ unsigned int size; /* size in bytes of logout area */
+ unsigned int sbz1 : 30; /* should be zero */
+ unsigned int err2 : 1; /* second error */
+ unsigned int retry : 1; /* retry flag */
+ unsigned int proc_offset; /* processor-specific offset */
+ unsigned int sys_offset; /* system-specific offset */
+ unsigned int code; /* machine check code */
+ unsigned int frame_rev; /* frame revision */
+};
+
+/* Machine Check Frame for uncorrectable errors (Large format)
+ * --- This is used to log uncorrectable errors such as
+ * double bit ECC errors.
+ * --- These errors are detected by both processor and systems.
+ */
+struct el_common_EV5_uncorrectable_mcheck {
+ unsigned long shadow[8]; /* Shadow reg. 8-14, 25 */
+ unsigned long paltemp[24]; /* PAL TEMP REGS. */
+ unsigned long exc_addr; /* Address of excepting instruction*/
+ unsigned long exc_sum; /* Summary of arithmetic traps. */
+ unsigned long exc_mask; /* Exception mask (from exc_sum). */
+ unsigned long pal_base; /* Base address for PALcode. */
+ unsigned long isr; /* Interrupt Status Reg. */
+ unsigned long icsr; /* CURRENT SETUP OF EV5 IBOX */
+ unsigned long ic_perr_stat; /* I-CACHE Reg. <11> set Data parity
+ <12> set TAG parity*/
+ unsigned long dc_perr_stat; /* D-CACHE error Reg. Bits set to 1:
+ <2> Data error in bank 0
+ <3> Data error in bank 1
+ <4> Tag error in bank 0
+ <5> Tag error in bank 1 */
+ unsigned long va; /* Effective VA of fault or miss. */
+ unsigned long mm_stat; /* Holds the reason for D-stream
+ fault or D-cache parity errors */
+ unsigned long sc_addr; /* Address that was being accessed
+ when EV5 detected Secondary cache
+ failure. */
+ unsigned long sc_stat; /* Helps determine if the error was
+ TAG/Data parity(Secondary Cache)*/
+ unsigned long bc_tag_addr; /* Contents of EV5 BC_TAG_ADDR */
+ unsigned long ei_addr; /* Physical address of any transfer
+ that is logged in EV5 EI_STAT */
+ unsigned long fill_syndrome; /* For correcting ECC errors. */
+ unsigned long ei_stat; /* Helps identify reason of any
+ processor uncorrectable error
+ at its external interface. */
+ unsigned long ld_lock; /* Contents of EV5 LD_LOCK register*/
+};
+
+struct el_common_EV6_mcheck {
+ unsigned int FrameSize; /* Bytes, including this field */
+ unsigned int FrameFlags; /* <31> = Retry, <30> = Second Error */
+ unsigned int CpuOffset; /* Offset to CPU-specific info */
+ unsigned int SystemOffset; /* Offset to system-specific info */
+ unsigned int MCHK_Code;
+ unsigned int MCHK_Frame_Rev;
+ unsigned long I_STAT; /* EV6 Internal Processor Registers */
+ unsigned long DC_STAT; /* (See the 21264 Spec) */
+ unsigned long C_ADDR;
+ unsigned long DC1_SYNDROME;
+ unsigned long DC0_SYNDROME;
+ unsigned long C_STAT;
+ unsigned long C_STS;
+ unsigned long MM_STAT;
+ unsigned long EXC_ADDR;
+ unsigned long IER_CM;
+ unsigned long ISUM;
+ unsigned long RESERVED0;
+ unsigned long PAL_BASE;
+ unsigned long I_CTL;
+ unsigned long PCTX;
+};
+
+
+#endif /* __ALPHA_MCE_H */
diff --git a/arch/alpha/include/asm/mmu.h b/arch/alpha/include/asm/mmu.h
new file mode 100644
index 0000000000..dadfc1b6e3
--- /dev/null
+++ b/arch/alpha/include/asm/mmu.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MMU_H
+#define __ALPHA_MMU_H
+
+/* The alpha MMU context is one "unsigned long" bitmap per CPU */
+typedef unsigned long mm_context_t[NR_CPUS];
+
+#endif
diff --git a/arch/alpha/include/asm/mmu_context.h b/arch/alpha/include/asm/mmu_context.h
new file mode 100644
index 0000000000..4eea7c6169
--- /dev/null
+++ b/arch/alpha/include/asm/mmu_context.h
@@ -0,0 +1,259 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MMU_CONTEXT_H
+#define __ALPHA_MMU_CONTEXT_H
+
+/*
+ * get a new mmu context..
+ *
+ * Copyright (C) 1996, Linus Torvalds
+ */
+
+#include <linux/mm_types.h>
+#include <linux/sched.h>
+
+#include <asm/machvec.h>
+#include <asm/compiler.h>
+#include <asm-generic/mm_hooks.h>
+
+/*
+ * Force a context reload. This is needed when we change the page
+ * table pointer or when we update the ASN of the current process.
+ */
+
+/* Don't get into trouble with dueling __EXTERN_INLINEs. */
+#ifndef __EXTERN_INLINE
+#include <asm/io.h>
+#endif
+
+
+static inline unsigned long
+__reload_thread(struct pcb_struct *pcb)
+{
+ register unsigned long a0 __asm__("$16");
+ register unsigned long v0 __asm__("$0");
+
+ a0 = virt_to_phys(pcb);
+ __asm__ __volatile__(
+ "call_pal %2 #__reload_thread"
+ : "=r"(v0), "=r"(a0)
+ : "i"(PAL_swpctx), "r"(a0)
+ : "$1", "$22", "$23", "$24", "$25");
+
+ return v0;
+}
+
+
+/*
+ * The maximum ASN's the processor supports. On the EV4 this is 63
+ * but the PAL-code doesn't actually use this information. On the
+ * EV5 this is 127, and EV6 has 255.
+ *
+ * On the EV4, the ASNs are more-or-less useless anyway, as they are
+ * only used as an icache tag, not for TB entries. On the EV5 and EV6,
+ * ASN's also validate the TB entries, and thus make a lot more sense.
+ *
+ * The EV4 ASN's don't even match the architecture manual, ugh. And
+ * I quote: "If a processor implements address space numbers (ASNs),
+ * and the old PTE has the Address Space Match (ASM) bit clear (ASNs
+ * in use) and the Valid bit set, then entries can also effectively be
+ * made coherent by assigning a new, unused ASN to the currently
+ * running process and not reusing the previous ASN before calling the
+ * appropriate PALcode routine to invalidate the translation buffer (TB)".
+ *
+ * In short, the EV4 has a "kind of" ASN capability, but it doesn't actually
+ * work correctly and can thus not be used (explaining the lack of PAL-code
+ * support).
+ */
+#define EV4_MAX_ASN 63
+#define EV5_MAX_ASN 127
+#define EV6_MAX_ASN 255
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define MAX_ASN (alpha_mv.max_asn)
+#else
+# ifdef CONFIG_ALPHA_EV4
+# define MAX_ASN EV4_MAX_ASN
+# elif defined(CONFIG_ALPHA_EV5)
+# define MAX_ASN EV5_MAX_ASN
+# else
+# define MAX_ASN EV6_MAX_ASN
+# endif
+#endif
+
+/*
+ * cpu_last_asn(processor):
+ * 63 0
+ * +-------------+----------------+--------------+
+ * | asn version | this processor | hardware asn |
+ * +-------------+----------------+--------------+
+ */
+
+#include <asm/smp.h>
+#ifdef CONFIG_SMP
+#define cpu_last_asn(cpuid) (cpu_data[cpuid].last_asn)
+#else
+extern unsigned long last_asn;
+#define cpu_last_asn(cpuid) last_asn
+#endif /* CONFIG_SMP */
+
+#define WIDTH_HARDWARE_ASN 8
+#define ASN_FIRST_VERSION (1UL << WIDTH_HARDWARE_ASN)
+#define HARDWARE_ASN_MASK ((1UL << WIDTH_HARDWARE_ASN) - 1)
+
+/*
+ * NOTE! The way this is set up, the high bits of the "asn_cache" (and
+ * the "mm->context") are the ASN _version_ code. A version of 0 is
+ * always considered invalid, so to invalidate another process you only
+ * need to do "p->mm->context = 0".
+ *
+ * If we need more ASN's than the processor has, we invalidate the old
+ * user TLB's (tbiap()) and start a new ASN version. That will automatically
+ * force a new asn for any other processes the next time they want to
+ * run.
+ */
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __MMU_EXTERN_INLINE
+#endif
+
+extern inline unsigned long
+__get_new_mm_context(struct mm_struct *mm, long cpu)
+{
+ unsigned long asn = cpu_last_asn(cpu);
+ unsigned long next = asn + 1;
+
+ if ((asn & HARDWARE_ASN_MASK) >= MAX_ASN) {
+ tbiap();
+ imb();
+ next = (asn & ~HARDWARE_ASN_MASK) + ASN_FIRST_VERSION;
+ }
+ cpu_last_asn(cpu) = next;
+ return next;
+}
+
+__EXTERN_INLINE void
+ev5_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm,
+ struct task_struct *next)
+{
+ /* Check if our ASN is of an older version, and thus invalid. */
+ unsigned long asn;
+ unsigned long mmc;
+ long cpu = smp_processor_id();
+
+#ifdef CONFIG_SMP
+ cpu_data[cpu].asn_lock = 1;
+ barrier();
+#endif
+ asn = cpu_last_asn(cpu);
+ mmc = next_mm->context[cpu];
+ if ((mmc ^ asn) & ~HARDWARE_ASN_MASK) {
+ mmc = __get_new_mm_context(next_mm, cpu);
+ next_mm->context[cpu] = mmc;
+ }
+#ifdef CONFIG_SMP
+ else
+ cpu_data[cpu].need_new_asn = 1;
+#endif
+
+ /* Always update the PCB ASN. Another thread may have allocated
+ a new mm->context (via flush_tlb_mm) without the ASN serial
+ number wrapping. We have no way to detect when this is needed. */
+ task_thread_info(next)->pcb.asn = mmc & HARDWARE_ASN_MASK;
+}
+
+__EXTERN_INLINE void
+ev4_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm,
+ struct task_struct *next)
+{
+ /* As described, ASN's are broken for TLB usage. But we can
+ optimize for switching between threads -- if the mm is
+ unchanged from current we needn't flush. */
+ /* ??? May not be needed because EV4 PALcode recognizes that
+ ASN's are broken and does a tbiap itself on swpctx, under
+ the "Must set ASN or flush" rule. At least this is true
+ for a 1992 SRM, reports Joseph Martin (jmartin@hlo.dec.com).
+ I'm going to leave this here anyway, just to Be Sure. -- r~ */
+ if (prev_mm != next_mm)
+ tbiap();
+
+ /* Do continue to allocate ASNs, because we can still use them
+ to avoid flushing the icache. */
+ ev5_switch_mm(prev_mm, next_mm, next);
+}
+
+extern void __load_new_mm_context(struct mm_struct *);
+
+#ifdef CONFIG_SMP
+#define check_mmu_context() \
+do { \
+ int cpu = smp_processor_id(); \
+ cpu_data[cpu].asn_lock = 0; \
+ barrier(); \
+ if (cpu_data[cpu].need_new_asn) { \
+ struct mm_struct * mm = current->active_mm; \
+ cpu_data[cpu].need_new_asn = 0; \
+ if (!mm->context[cpu]) \
+ __load_new_mm_context(mm); \
+ } \
+} while(0)
+#else
+#define check_mmu_context() do { } while(0)
+#endif
+
+__EXTERN_INLINE void
+ev5_activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
+{
+ __load_new_mm_context(next_mm);
+}
+
+__EXTERN_INLINE void
+ev4_activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
+{
+ __load_new_mm_context(next_mm);
+ tbiap();
+}
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define switch_mm(a,b,c) alpha_mv.mv_switch_mm((a),(b),(c))
+# define activate_mm(x,y) alpha_mv.mv_activate_mm((x),(y))
+#else
+# ifdef CONFIG_ALPHA_EV4
+# define switch_mm(a,b,c) ev4_switch_mm((a),(b),(c))
+# define activate_mm(x,y) ev4_activate_mm((x),(y))
+# else
+# define switch_mm(a,b,c) ev5_switch_mm((a),(b),(c))
+# define activate_mm(x,y) ev5_activate_mm((x),(y))
+# endif
+#endif
+
+#define init_new_context init_new_context
+static inline int
+init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+ int i;
+
+ for_each_online_cpu(i)
+ mm->context[i] = 0;
+ if (tsk != current)
+ task_thread_info(tsk)->pcb.ptbr
+ = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;
+ return 0;
+}
+
+#define enter_lazy_tlb enter_lazy_tlb
+static inline void
+enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+ task_thread_info(tsk)->pcb.ptbr
+ = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;
+}
+
+#include <asm-generic/mmu_context.h>
+
+#ifdef __MMU_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __MMU_EXTERN_INLINE
+#endif
+
+#endif /* __ALPHA_MMU_CONTEXT_H */
diff --git a/arch/alpha/include/asm/module.h b/arch/alpha/include/asm/module.h
new file mode 100644
index 0000000000..1e96e42f5d
--- /dev/null
+++ b/arch/alpha/include/asm/module.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_MODULE_H
+#define _ALPHA_MODULE_H
+
+#include <asm-generic/module.h>
+
+struct mod_arch_specific
+{
+ unsigned int gotsecindex;
+};
+
+#define ARCH_SHF_SMALL SHF_ALPHA_GPREL
+
+#ifdef MODULE
+asm(".section .got,\"aws\",@progbits; .align 3; .previous");
+#endif
+
+#endif /*_ALPHA_MODULE_H*/
diff --git a/arch/alpha/include/asm/page.h b/arch/alpha/include/asm/page.h
new file mode 100644
index 0000000000..4db1ebc0ed
--- /dev/null
+++ b/arch/alpha/include/asm/page.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_PAGE_H
+#define _ALPHA_PAGE_H
+
+#include <linux/const.h>
+#include <asm/pal.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT 13
+#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#ifndef __ASSEMBLY__
+
+#define STRICT_MM_TYPECHECKS
+
+extern void clear_page(void *page);
+#define clear_user_page(page, vaddr, pg) clear_page(page)
+
+#define vma_alloc_zeroed_movable_folio(vma, vaddr) \
+ vma_alloc_folio(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, 0, vma, vaddr, false)
+
+extern void copy_page(void * _to, void * _from);
+#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
+
+#ifdef STRICT_MM_TYPECHECKS
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pmd; } pmd_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#define pte_val(x) ((x).pte)
+#define pmd_val(x) ((x).pmd)
+#define pgd_val(x) ((x).pgd)
+#define pgprot_val(x) ((x).pgprot)
+
+#define __pte(x) ((pte_t) { (x) } )
+#define __pmd(x) ((pmd_t) { (x) } )
+#define __pgd(x) ((pgd_t) { (x) } )
+#define __pgprot(x) ((pgprot_t) { (x) } )
+
+#else
+/*
+ * .. while these make it easier on the compiler
+ */
+typedef unsigned long pte_t;
+typedef unsigned long pmd_t;
+typedef unsigned long pgd_t;
+typedef unsigned long pgprot_t;
+
+#define pte_val(x) (x)
+#define pmd_val(x) (x)
+#define pgd_val(x) (x)
+#define pgprot_val(x) (x)
+
+#define __pte(x) (x)
+#define __pgd(x) (x)
+#define __pgprot(x) (x)
+
+#endif /* STRICT_MM_TYPECHECKS */
+
+typedef struct page *pgtable_t;
+
+#ifdef USE_48_BIT_KSEG
+#define PAGE_OFFSET 0xffff800000000000UL
+#else
+#define PAGE_OFFSET 0xfffffc0000000000UL
+#endif
+
+#else
+
+#ifdef USE_48_BIT_KSEG
+#define PAGE_OFFSET 0xffff800000000000
+#else
+#define PAGE_OFFSET 0xfffffc0000000000
+#endif
+
+#endif /* !__ASSEMBLY__ */
+
+#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
+#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
+
+#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define virt_addr_valid(kaddr) pfn_valid((__pa(kaddr) >> PAGE_SHIFT))
+
+#include <asm-generic/memory_model.h>
+#include <asm-generic/getorder.h>
+
+#endif /* _ALPHA_PAGE_H */
diff --git a/arch/alpha/include/asm/pal.h b/arch/alpha/include/asm/pal.h
new file mode 100644
index 0000000000..db2b3b18b3
--- /dev/null
+++ b/arch/alpha/include/asm/pal.h
@@ -0,0 +1,187 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PAL_H
+#define __ALPHA_PAL_H
+
+#include <uapi/asm/pal.h>
+
+#ifndef __ASSEMBLY__
+
+extern void halt(void) __attribute__((noreturn));
+#define __halt() __asm__ __volatile__ ("call_pal %0 #halt" : : "i" (PAL_halt))
+
+#define imb() \
+__asm__ __volatile__ ("call_pal %0 #imb" : : "i" (PAL_imb) : "memory")
+
+#define draina() \
+__asm__ __volatile__ ("call_pal %0 #draina" : : "i" (PAL_draina) : "memory")
+
+#define __CALL_PAL_R0(NAME, TYPE) \
+extern inline TYPE NAME(void) \
+{ \
+ register TYPE __r0 __asm__("$0"); \
+ __asm__ __volatile__( \
+ "call_pal %1 # " #NAME \
+ :"=r" (__r0) \
+ :"i" (PAL_ ## NAME) \
+ :"$1", "$16", "$22", "$23", "$24", "$25"); \
+ return __r0; \
+}
+
+#define __CALL_PAL_W1(NAME, TYPE0) \
+extern inline void NAME(TYPE0 arg0) \
+{ \
+ register TYPE0 __r16 __asm__("$16") = arg0; \
+ __asm__ __volatile__( \
+ "call_pal %1 # "#NAME \
+ : "=r"(__r16) \
+ : "i"(PAL_ ## NAME), "0"(__r16) \
+ : "$1", "$22", "$23", "$24", "$25"); \
+}
+
+#define __CALL_PAL_W2(NAME, TYPE0, TYPE1) \
+extern inline void NAME(TYPE0 arg0, TYPE1 arg1) \
+{ \
+ register TYPE0 __r16 __asm__("$16") = arg0; \
+ register TYPE1 __r17 __asm__("$17") = arg1; \
+ __asm__ __volatile__( \
+ "call_pal %2 # "#NAME \
+ : "=r"(__r16), "=r"(__r17) \
+ : "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17) \
+ : "$1", "$22", "$23", "$24", "$25"); \
+}
+
+#define __CALL_PAL_RW1(NAME, RTYPE, TYPE0) \
+extern inline RTYPE NAME(TYPE0 arg0) \
+{ \
+ register RTYPE __r0 __asm__("$0"); \
+ register TYPE0 __r16 __asm__("$16") = arg0; \
+ __asm__ __volatile__( \
+ "call_pal %2 # "#NAME \
+ : "=r"(__r16), "=r"(__r0) \
+ : "i"(PAL_ ## NAME), "0"(__r16) \
+ : "$1", "$22", "$23", "$24", "$25"); \
+ return __r0; \
+}
+
+#define __CALL_PAL_RW2(NAME, RTYPE, TYPE0, TYPE1) \
+extern inline RTYPE NAME(TYPE0 arg0, TYPE1 arg1) \
+{ \
+ register RTYPE __r0 __asm__("$0"); \
+ register TYPE0 __r16 __asm__("$16") = arg0; \
+ register TYPE1 __r17 __asm__("$17") = arg1; \
+ __asm__ __volatile__( \
+ "call_pal %3 # "#NAME \
+ : "=r"(__r16), "=r"(__r17), "=r"(__r0) \
+ : "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17) \
+ : "$1", "$22", "$23", "$24", "$25"); \
+ return __r0; \
+}
+
+__CALL_PAL_W1(cflush, unsigned long);
+__CALL_PAL_R0(rdmces, unsigned long);
+__CALL_PAL_R0(rdps, unsigned long);
+__CALL_PAL_R0(rdusp, unsigned long);
+__CALL_PAL_RW1(swpipl, unsigned long, unsigned long);
+__CALL_PAL_R0(whami, unsigned long);
+__CALL_PAL_W2(wrent, void*, unsigned long);
+__CALL_PAL_W1(wripir, unsigned long);
+__CALL_PAL_W1(wrkgp, unsigned long);
+__CALL_PAL_W1(wrmces, unsigned long);
+__CALL_PAL_RW2(wrperfmon, unsigned long, unsigned long, unsigned long);
+__CALL_PAL_W1(wrusp, unsigned long);
+__CALL_PAL_W1(wrvptptr, unsigned long);
+__CALL_PAL_RW1(wtint, unsigned long, unsigned long);
+
+/*
+ * TB routines..
+ */
+#define __tbi(nr,arg,arg1...) \
+({ \
+ register unsigned long __r16 __asm__("$16") = (nr); \
+ register unsigned long __r17 __asm__("$17"); arg; \
+ __asm__ __volatile__( \
+ "call_pal %3 #__tbi" \
+ :"=r" (__r16),"=r" (__r17) \
+ :"0" (__r16),"i" (PAL_tbi) ,##arg1 \
+ :"$0", "$1", "$22", "$23", "$24", "$25"); \
+})
+
+#define tbi(x,y) __tbi(x,__r17=(y),"1" (__r17))
+#define tbisi(x) __tbi(1,__r17=(x),"1" (__r17))
+#define tbisd(x) __tbi(2,__r17=(x),"1" (__r17))
+#define tbis(x) __tbi(3,__r17=(x),"1" (__r17))
+#define tbiap() __tbi(-1, /* no second argument */)
+#define tbia() __tbi(-2, /* no second argument */)
+
+/*
+ * QEMU Cserv routines..
+ */
+
+static inline unsigned long
+qemu_get_walltime(void)
+{
+ register unsigned long v0 __asm__("$0");
+ register unsigned long a0 __asm__("$16") = 3;
+
+ asm("call_pal %2 # cserve get_time"
+ : "=r"(v0), "+r"(a0)
+ : "i"(PAL_cserve)
+ : "$17", "$18", "$19", "$20", "$21");
+
+ return v0;
+}
+
+static inline unsigned long
+qemu_get_alarm(void)
+{
+ register unsigned long v0 __asm__("$0");
+ register unsigned long a0 __asm__("$16") = 4;
+
+ asm("call_pal %2 # cserve get_alarm"
+ : "=r"(v0), "+r"(a0)
+ : "i"(PAL_cserve)
+ : "$17", "$18", "$19", "$20", "$21");
+
+ return v0;
+}
+
+static inline void
+qemu_set_alarm_rel(unsigned long expire)
+{
+ register unsigned long a0 __asm__("$16") = 5;
+ register unsigned long a1 __asm__("$17") = expire;
+
+ asm volatile("call_pal %2 # cserve set_alarm_rel"
+ : "+r"(a0), "+r"(a1)
+ : "i"(PAL_cserve)
+ : "$0", "$18", "$19", "$20", "$21");
+}
+
+static inline void
+qemu_set_alarm_abs(unsigned long expire)
+{
+ register unsigned long a0 __asm__("$16") = 6;
+ register unsigned long a1 __asm__("$17") = expire;
+
+ asm volatile("call_pal %2 # cserve set_alarm_abs"
+ : "+r"(a0), "+r"(a1)
+ : "i"(PAL_cserve)
+ : "$0", "$18", "$19", "$20", "$21");
+}
+
+static inline unsigned long
+qemu_get_vmtime(void)
+{
+ register unsigned long v0 __asm__("$0");
+ register unsigned long a0 __asm__("$16") = 7;
+
+ asm("call_pal %2 # cserve get_time"
+ : "=r"(v0), "+r"(a0)
+ : "i"(PAL_cserve)
+ : "$17", "$18", "$19", "$20", "$21");
+
+ return v0;
+}
+
+#endif /* !__ASSEMBLY__ */
+#endif /* __ALPHA_PAL_H */
diff --git a/arch/alpha/include/asm/param.h b/arch/alpha/include/asm/param.h
new file mode 100644
index 0000000000..cfe947ce94
--- /dev/null
+++ b/arch/alpha/include/asm/param.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_PARAM_H
+#define _ASM_ALPHA_PARAM_H
+
+#include <uapi/asm/param.h>
+
+# undef HZ
+# define HZ CONFIG_HZ
+# define USER_HZ 1024
+# define CLOCKS_PER_SEC USER_HZ /* frequency at which times() counts */
+
+#endif /* _ASM_ALPHA_PARAM_H */
diff --git a/arch/alpha/include/asm/parport.h b/arch/alpha/include/asm/parport.h
new file mode 100644
index 0000000000..0519a51e61
--- /dev/null
+++ b/arch/alpha/include/asm/parport.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * parport.h: platform-specific PC-style parport initialisation
+ *
+ * Copyright (C) 1999, 2000 Tim Waugh <tim@cyberelk.demon.co.uk>
+ *
+ * This file should only be included by drivers/parport/parport_pc.c.
+ */
+
+#ifndef _ASM_AXP_PARPORT_H
+#define _ASM_AXP_PARPORT_H 1
+
+static int parport_pc_find_isa_ports (int autoirq, int autodma);
+static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
+{
+ return parport_pc_find_isa_ports (autoirq, autodma);
+}
+
+#endif /* !(_ASM_AXP_PARPORT_H) */
diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h
new file mode 100644
index 0000000000..6c04fcbdc8
--- /dev/null
+++ b/arch/alpha/include/asm/pci.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PCI_H
+#define __ALPHA_PCI_H
+
+#ifdef __KERNEL__
+
+#include <linux/spinlock.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+#include <asm/machvec.h>
+
+/*
+ * The following structure is used to manage multiple PCI busses.
+ */
+
+struct pci_iommu_arena;
+struct page;
+
+/* A controller. Used to manage multiple PCI busses. */
+
+struct pci_controller {
+ struct pci_controller *next;
+ struct pci_bus *bus;
+ struct resource *io_space;
+ struct resource *mem_space;
+
+ /* The following are for reporting to userland. The invariant is
+ that if we report a BWX-capable dense memory, we do not report
+ a sparse memory at all, even if it exists. */
+ unsigned long sparse_mem_base;
+ unsigned long dense_mem_base;
+ unsigned long sparse_io_base;
+ unsigned long dense_io_base;
+
+ /* This one's for the kernel only. It's in KSEG somewhere. */
+ unsigned long config_space_base;
+
+ unsigned int index;
+ /* For compatibility with current (as of July 2003) pciutils
+ and XFree86. Eventually will be removed. */
+ unsigned int need_domain_info;
+
+ struct pci_iommu_arena *sg_pci;
+ struct pci_iommu_arena *sg_isa;
+
+ void *sysdata;
+};
+
+/* Override the logic in pci_scan_bus for skipping already-configured
+ bus numbers. */
+
+#define pcibios_assign_all_busses() 1
+
+#define PCIBIOS_MIN_IO alpha_mv.min_io_address
+#define PCIBIOS_MIN_MEM alpha_mv.min_mem_address
+
+/* IOMMU controls. */
+
+#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
+
+static inline int pci_proc_domain(struct pci_bus *bus)
+{
+ struct pci_controller *hose = bus->sysdata;
+ return hose->need_domain_info;
+}
+
+#endif /* __KERNEL__ */
+
+/* Values for the `which' argument to sys_pciconfig_iobase. */
+#define IOBASE_HOSE 0
+#define IOBASE_SPARSE_MEM 1
+#define IOBASE_DENSE_MEM 2
+#define IOBASE_SPARSE_IO 3
+#define IOBASE_DENSE_IO 4
+#define IOBASE_ROOT_BUS 5
+#define IOBASE_FROM_HOSE 0x10000
+
+extern struct pci_dev *isa_bridge;
+
+extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
+ size_t count);
+extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
+ size_t count);
+extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
+ struct vm_area_struct *vma,
+ enum pci_mmap_state mmap_state);
+extern void pci_adjust_legacy_attr(struct pci_bus *bus,
+ enum pci_mmap_state mmap_type);
+#define HAVE_PCI_LEGACY 1
+
+#endif /* __ALPHA_PCI_H */
diff --git a/arch/alpha/include/asm/percpu.h b/arch/alpha/include/asm/percpu.h
new file mode 100644
index 0000000000..6923249f2d
--- /dev/null
+++ b/arch/alpha/include/asm/percpu.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PERCPU_H
+#define __ALPHA_PERCPU_H
+
+/*
+ * To calculate addresses of locally defined variables, GCC uses
+ * 32-bit displacement from the GP. Which doesn't work for per cpu
+ * variables in modules, as an offset to the kernel per cpu area is
+ * way above 4G.
+ *
+ * Always use weak definitions for percpu variables in modules.
+ */
+#if defined(MODULE) && defined(CONFIG_SMP)
+#define ARCH_NEEDS_WEAK_PER_CPU
+#endif
+
+#include <asm-generic/percpu.h>
+
+#endif /* __ALPHA_PERCPU_H */
diff --git a/arch/alpha/include/asm/perf_event.h b/arch/alpha/include/asm/perf_event.h
new file mode 100644
index 0000000000..5996e7a675
--- /dev/null
+++ b/arch/alpha/include/asm/perf_event.h
@@ -0,0 +1,4 @@
+#ifndef __ASM_ALPHA_PERF_EVENT_H
+#define __ASM_ALPHA_PERF_EVENT_H
+
+#endif /* __ASM_ALPHA_PERF_EVENT_H */
diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
new file mode 100644
index 0000000000..68be7adbfe
--- /dev/null
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_PGALLOC_H
+#define _ALPHA_PGALLOC_H
+
+#include <linux/mm.h>
+#include <linux/mmzone.h>
+
+#include <asm-generic/pgalloc.h>
+
+/*
+ * Allocate and free page tables. The xxx_kernel() versions are
+ * used to allocate a kernel page table - this turns on ASN bits
+ * if any.
+ */
+
+static inline void
+pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte)
+{
+ pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET));
+}
+
+static inline void
+pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
+{
+ pmd_set(pmd, pte);
+}
+
+static inline void
+pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+ pud_set(pud, pmd);
+}
+
+extern pgd_t *pgd_alloc(struct mm_struct *mm);
+
+#endif /* _ALPHA_PGALLOC_H */
diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
new file mode 100644
index 0000000000..635f0a5f5b
--- /dev/null
+++ b/arch/alpha/include/asm/pgtable.h
@@ -0,0 +1,366 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_PGTABLE_H
+#define _ALPHA_PGTABLE_H
+
+#include <asm-generic/pgtable-nopud.h>
+
+/*
+ * This file contains the functions and defines necessary to modify and use
+ * the Alpha page table tree.
+ *
+ * This hopefully works with any standard Alpha page-size, as defined
+ * in <asm/page.h> (currently 8192).
+ */
+#include <linux/mmzone.h>
+
+#include <asm/page.h>
+#include <asm/processor.h> /* For TASK_SIZE */
+#include <asm/machvec.h>
+#include <asm/setup.h>
+
+struct mm_struct;
+struct vm_area_struct;
+
+/* Certain architectures need to do special things when PTEs
+ * within a page table are directly modified. Thus, the following
+ * hook is made available.
+ */
+#define set_pte(pteptr, pteval) ((*(pteptr)) = (pteval))
+
+/* PMD_SHIFT determines the size of the area a second-level page table can map */
+#define PMD_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-3))
+#define PMD_SIZE (1UL << PMD_SHIFT)
+#define PMD_MASK (~(PMD_SIZE-1))
+
+/* PGDIR_SHIFT determines what a third-level page table entry can map */
+#define PGDIR_SHIFT (PAGE_SHIFT + 2*(PAGE_SHIFT-3))
+#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK (~(PGDIR_SIZE-1))
+
+/*
+ * Entries per page directory level: the Alpha is three-level, with
+ * all levels having a one-page page table.
+ */
+#define PTRS_PER_PTE (1UL << (PAGE_SHIFT-3))
+#define PTRS_PER_PMD (1UL << (PAGE_SHIFT-3))
+#define PTRS_PER_PGD (1UL << (PAGE_SHIFT-3))
+#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
+
+/* Number of pointers that fit on a page: this will go away. */
+#define PTRS_PER_PAGE (1UL << (PAGE_SHIFT-3))
+
+#ifdef CONFIG_ALPHA_LARGE_VMALLOC
+#define VMALLOC_START 0xfffffe0000000000
+#else
+#define VMALLOC_START (-2*PGDIR_SIZE)
+#endif
+#define VMALLOC_END (-PGDIR_SIZE)
+
+/*
+ * OSF/1 PAL-code-imposed page table bits
+ */
+#define _PAGE_VALID 0x0001
+#define _PAGE_FOR 0x0002 /* used for page protection (fault on read) */
+#define _PAGE_FOW 0x0004 /* used for page protection (fault on write) */
+#define _PAGE_FOE 0x0008 /* used for page protection (fault on exec) */
+#define _PAGE_ASM 0x0010
+#define _PAGE_KRE 0x0100 /* xxx - see below on the "accessed" bit */
+#define _PAGE_URE 0x0200 /* xxx */
+#define _PAGE_KWE 0x1000 /* used to do the dirty bit in software */
+#define _PAGE_UWE 0x2000 /* used to do the dirty bit in software */
+
+/* .. and these are ours ... */
+#define _PAGE_DIRTY 0x20000
+#define _PAGE_ACCESSED 0x40000
+
+/* We borrow bit 39 to store the exclusive marker in swap PTEs. */
+#define _PAGE_SWP_EXCLUSIVE 0x8000000000UL
+
+/*
+ * NOTE! The "accessed" bit isn't necessarily exact: it can be kept exactly
+ * by software (use the KRE/URE/KWE/UWE bits appropriately), but I'll fake it.
+ * Under Linux/AXP, the "accessed" bit just means "read", and I'll just use
+ * the KRE/URE bits to watch for it. That way we don't need to overload the
+ * KWE/UWE bits with both handling dirty and accessed.
+ *
+ * Note that the kernel uses the accessed bit just to check whether to page
+ * out a page or not, so it doesn't have to be exact anyway.
+ */
+
+#define __DIRTY_BITS (_PAGE_DIRTY | _PAGE_KWE | _PAGE_UWE)
+#define __ACCESS_BITS (_PAGE_ACCESSED | _PAGE_KRE | _PAGE_URE)
+
+#define _PFN_MASK 0xFFFFFFFF00000000UL
+
+#define _PAGE_TABLE (_PAGE_VALID | __DIRTY_BITS | __ACCESS_BITS)
+#define _PAGE_CHG_MASK (_PFN_MASK | __DIRTY_BITS | __ACCESS_BITS)
+
+/*
+ * All the normal masks have the "page accessed" bits on, as any time they are used,
+ * the page is accessed. They are cleared only by the page-out routines
+ */
+#define PAGE_NONE __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOR | _PAGE_FOW | _PAGE_FOE)
+#define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS)
+#define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+#define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+#define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
+
+#define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
+
+#define _PAGE_P(x) _PAGE_NORMAL((x) | (((x) & _PAGE_FOW)?0:_PAGE_FOW))
+#define _PAGE_S(x) _PAGE_NORMAL(x)
+
+/*
+ * The hardware can handle write-only mappings, but as the Alpha
+ * architecture does byte-wide writes with a read-modify-write
+ * sequence, it's not practical to have write-without-read privs.
+ * Thus the "-w- -> rw-" and "-wx -> rwx" mapping here (and in
+ * arch/alpha/mm/fault.c)
+ */
+ /* xwr */
+
+/*
+ * pgprot_noncached() is only for infiniband pci support, and a real
+ * implementation for RAM would be more complicated.
+ */
+#define pgprot_noncached(prot) (prot)
+
+/*
+ * BAD_PAGETABLE is used when we need a bogus page-table, while
+ * BAD_PAGE is used for a bogus page.
+ *
+ * ZERO_PAGE is a global shared page that is always zero: used
+ * for zero-mapped memory areas etc..
+ */
+extern pte_t __bad_page(void);
+extern pmd_t * __bad_pagetable(void);
+
+extern unsigned long __zero_page(void);
+
+#define BAD_PAGETABLE __bad_pagetable()
+#define BAD_PAGE __bad_page()
+#define ZERO_PAGE(vaddr) (virt_to_page(ZERO_PGE))
+
+/* number of bits that fit into a memory pointer */
+#define BITS_PER_PTR (8*sizeof(unsigned long))
+
+/* to align the pointer to a pointer address */
+#define PTR_MASK (~(sizeof(void*)-1))
+
+/* sizeof(void*)==1<<SIZEOF_PTR_LOG2 */
+#define SIZEOF_PTR_LOG2 3
+
+/* to find an entry in a page-table */
+#define PAGE_PTR(address) \
+ ((unsigned long)(address)>>(PAGE_SHIFT-SIZEOF_PTR_LOG2)&PTR_MASK&~PAGE_MASK)
+
+/*
+ * On certain platforms whose physical address space can overlap KSEG,
+ * namely EV6 and above, we must re-twiddle the physaddr to restore the
+ * correct high-order bits.
+ *
+ * This is extremely confusing until you realize that this is actually
+ * just working around a userspace bug. The X server was intending to
+ * provide the physical address but instead provided the KSEG address.
+ * Or tried to, except it's not representable.
+ *
+ * On Tsunami there's nothing meaningful at 0x40000000000, so this is
+ * a safe thing to do. Come the first core logic that does put something
+ * in this area -- memory or whathaveyou -- then this hack will have
+ * to go away. So be prepared!
+ */
+
+#if defined(CONFIG_ALPHA_GENERIC) && defined(USE_48_BIT_KSEG)
+#error "EV6-only feature in a generic kernel"
+#endif
+#if defined(CONFIG_ALPHA_GENERIC) || \
+ (defined(CONFIG_ALPHA_EV6) && !defined(USE_48_BIT_KSEG))
+#define KSEG_PFN (0xc0000000000UL >> PAGE_SHIFT)
+#define PHYS_TWIDDLE(pfn) \
+ ((((pfn) & KSEG_PFN) == (0x40000000000UL >> PAGE_SHIFT)) \
+ ? ((pfn) ^= KSEG_PFN) : (pfn))
+#else
+#define PHYS_TWIDDLE(pfn) (pfn)
+#endif
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */
+#define page_to_pa(page) (page_to_pfn(page) << PAGE_SHIFT)
+#define PFN_PTE_SHIFT 32
+#define pte_pfn(pte) (pte_val(pte) >> PFN_PTE_SHIFT)
+
+#define pte_page(pte) pfn_to_page(pte_pfn(pte))
+#define mk_pte(page, pgprot) \
+({ \
+ pte_t pte; \
+ \
+ pte_val(pte) = (page_to_pfn(page) << 32) | pgprot_val(pgprot); \
+ pte; \
+})
+
+extern inline pte_t pfn_pte(unsigned long physpfn, pgprot_t pgprot)
+{ pte_t pte; pte_val(pte) = (PHYS_TWIDDLE(physpfn) << 32) | pgprot_val(pgprot); return pte; }
+
+extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{ pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; }
+
+extern inline void pmd_set(pmd_t * pmdp, pte_t * ptep)
+{ pmd_val(*pmdp) = _PAGE_TABLE | ((((unsigned long) ptep) - PAGE_OFFSET) << (32-PAGE_SHIFT)); }
+
+extern inline void pud_set(pud_t * pudp, pmd_t * pmdp)
+{ pud_val(*pudp) = _PAGE_TABLE | ((((unsigned long) pmdp) - PAGE_OFFSET) << (32-PAGE_SHIFT)); }
+
+
+extern inline unsigned long
+pmd_page_vaddr(pmd_t pmd)
+{
+ return ((pmd_val(pmd) & _PFN_MASK) >> (32-PAGE_SHIFT)) + PAGE_OFFSET;
+}
+
+#define pmd_pfn(pmd) (pmd_val(pmd) >> 32)
+#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> 32))
+#define pud_page(pud) (pfn_to_page(pud_val(pud) >> 32))
+
+extern inline pmd_t *pud_pgtable(pud_t pgd)
+{
+ return (pmd_t *)(PAGE_OFFSET + ((pud_val(pgd) & _PFN_MASK) >> (32-PAGE_SHIFT)));
+}
+
+extern inline int pte_none(pte_t pte) { return !pte_val(pte); }
+extern inline int pte_present(pte_t pte) { return pte_val(pte) & _PAGE_VALID; }
+extern inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+ pte_val(*ptep) = 0;
+}
+
+extern inline int pmd_none(pmd_t pmd) { return !pmd_val(pmd); }
+extern inline int pmd_bad(pmd_t pmd) { return (pmd_val(pmd) & ~_PFN_MASK) != _PAGE_TABLE; }
+extern inline int pmd_present(pmd_t pmd) { return pmd_val(pmd) & _PAGE_VALID; }
+extern inline void pmd_clear(pmd_t * pmdp) { pmd_val(*pmdp) = 0; }
+
+extern inline int pud_none(pud_t pud) { return !pud_val(pud); }
+extern inline int pud_bad(pud_t pud) { return (pud_val(pud) & ~_PFN_MASK) != _PAGE_TABLE; }
+extern inline int pud_present(pud_t pud) { return pud_val(pud) & _PAGE_VALID; }
+extern inline void pud_clear(pud_t * pudp) { pud_val(*pudp) = 0; }
+
+/*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
+extern inline int pte_write(pte_t pte) { return !(pte_val(pte) & _PAGE_FOW); }
+extern inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
+extern inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
+
+extern inline pte_t pte_wrprotect(pte_t pte) { pte_val(pte) |= _PAGE_FOW; return pte; }
+extern inline pte_t pte_mkclean(pte_t pte) { pte_val(pte) &= ~(__DIRTY_BITS); return pte; }
+extern inline pte_t pte_mkold(pte_t pte) { pte_val(pte) &= ~(__ACCESS_BITS); return pte; }
+extern inline pte_t pte_mkwrite_novma(pte_t pte){ pte_val(pte) &= ~_PAGE_FOW; return pte; }
+extern inline pte_t pte_mkdirty(pte_t pte) { pte_val(pte) |= __DIRTY_BITS; return pte; }
+extern inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= __ACCESS_BITS; return pte; }
+
+/*
+ * The smp_rmb() in the following functions are required to order the load of
+ * *dir (the pointer in the top level page table) with any subsequent load of
+ * the returned pmd_t *ret (ret is data dependent on *dir).
+ *
+ * If this ordering is not enforced, the CPU might load an older value of
+ * *ret, which may be uninitialized data. See mm/memory.c:__pte_alloc for
+ * more details.
+ *
+ * Note that we never change the mm->pgd pointer after the task is running, so
+ * pgd_offset does not require such a barrier.
+ */
+
+/* Find an entry in the second-level page table.. */
+extern inline pmd_t * pmd_offset(pud_t * dir, unsigned long address)
+{
+ pmd_t *ret = pud_pgtable(*dir) + ((address >> PMD_SHIFT) & (PTRS_PER_PAGE - 1));
+ smp_rmb(); /* see above */
+ return ret;
+}
+#define pmd_offset pmd_offset
+
+/* Find an entry in the third-level page table.. */
+extern inline pte_t * pte_offset_kernel(pmd_t * dir, unsigned long address)
+{
+ pte_t *ret = (pte_t *) pmd_page_vaddr(*dir)
+ + ((address >> PAGE_SHIFT) & (PTRS_PER_PAGE - 1));
+ smp_rmb(); /* see above */
+ return ret;
+}
+#define pte_offset_kernel pte_offset_kernel
+
+extern pgd_t swapper_pg_dir[1024];
+
+/*
+ * The Alpha doesn't have any external MMU info: the kernel page
+ * tables contain all the necessary information.
+ */
+extern inline void update_mmu_cache(struct vm_area_struct * vma,
+ unsigned long address, pte_t *ptep)
+{
+}
+
+static inline void update_mmu_cache_range(struct vm_fault *vmf,
+ struct vm_area_struct *vma, unsigned long address,
+ pte_t *ptep, unsigned int nr)
+{
+}
+
+/*
+ * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that
+ * are !pte_none() && !pte_present().
+ *
+ * Format of swap PTEs:
+ *
+ * 6 6 6 6 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3
+ * 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2
+ * <------------------- offset ------------------> E <--- type -->
+ *
+ * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * <--------------------------- zeroes -------------------------->
+ *
+ * E is the exclusive marker that is not stored in swap entries.
+ */
+extern inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
+{ pte_t pte; pte_val(pte) = ((type & 0x7f) << 32) | (offset << 40); return pte; }
+
+#define __swp_type(x) (((x).val >> 32) & 0x7f)
+#define __swp_offset(x) ((x).val >> 40)
+#define __swp_entry(type, off) ((swp_entry_t) { pte_val(mk_swap_pte((type), (off))) })
+#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
+
+static inline int pte_swp_exclusive(pte_t pte)
+{
+ return pte_val(pte) & _PAGE_SWP_EXCLUSIVE;
+}
+
+static inline pte_t pte_swp_mkexclusive(pte_t pte)
+{
+ pte_val(pte) |= _PAGE_SWP_EXCLUSIVE;
+ return pte;
+}
+
+static inline pte_t pte_swp_clear_exclusive(pte_t pte)
+{
+ pte_val(pte) &= ~_PAGE_SWP_EXCLUSIVE;
+ return pte;
+}
+
+#define pte_ERROR(e) \
+ printk("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e))
+#define pmd_ERROR(e) \
+ printk("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e))
+#define pgd_ERROR(e) \
+ printk("%s:%d: bad pgd %016lx.\n", __FILE__, __LINE__, pgd_val(e))
+
+extern void paging_init(void);
+
+/* We have our own get_unmapped_area to cope with ADDR_LIMIT_32BIT. */
+#define HAVE_ARCH_UNMAPPED_AREA
+
+#endif /* _ALPHA_PGTABLE_H */
diff --git a/arch/alpha/include/asm/processor.h b/arch/alpha/include/asm/processor.h
new file mode 100644
index 0000000000..55bb1c09fd
--- /dev/null
+++ b/arch/alpha/include/asm/processor.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/processor.h
+ *
+ * Copyright (C) 1994 Linus Torvalds
+ */
+
+#ifndef __ASM_ALPHA_PROCESSOR_H
+#define __ASM_ALPHA_PROCESSOR_H
+
+#include <linux/personality.h> /* for ADDR_LIMIT_32BIT */
+
+/*
+ * We have a 42-bit user address space: 4TB user VM...
+ */
+#define TASK_SIZE (0x40000000000UL)
+
+#define STACK_TOP \
+ (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL)
+
+#define STACK_TOP_MAX 0x00120000000UL
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE \
+ ((current->personality & ADDR_LIMIT_32BIT) ? 0x40000000 : TASK_SIZE / 2)
+
+/* This is dead. Everything has been moved to thread_info. */
+struct thread_struct { };
+#define INIT_THREAD { }
+
+/* Do necessary setup to start up a newly executed thread. */
+struct pt_regs;
+extern void start_thread(struct pt_regs *, unsigned long, unsigned long);
+
+/* Free all resources held by a thread. */
+struct task_struct;
+unsigned long __get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
+
+#define KSTK_ESP(tsk) \
+ ((tsk) == current ? rdusp() : task_thread_info(tsk)->pcb.usp)
+
+#define cpu_relax() barrier()
+
+#define ARCH_HAS_PREFETCH
+#define ARCH_HAS_PREFETCHW
+
+extern inline void prefetch(const void *ptr)
+{
+ __builtin_prefetch(ptr, 0, 3);
+}
+
+extern inline void prefetchw(const void *ptr)
+{
+ __builtin_prefetch(ptr, 1, 3);
+}
+
+#endif /* __ASM_ALPHA_PROCESSOR_H */
diff --git a/arch/alpha/include/asm/ptrace.h b/arch/alpha/include/asm/ptrace.h
new file mode 100644
index 0000000000..3557ce64ed
--- /dev/null
+++ b/arch/alpha/include/asm/ptrace.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_PTRACE_H
+#define _ASMAXP_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+
+#define arch_has_single_step() (1)
+#define user_mode(regs) (((regs)->ps & 8) != 0)
+#define instruction_pointer(regs) ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+#define current_user_stack_pointer() rdusp()
+
+#define task_pt_regs(task) \
+ ((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1)
+
+#define current_pt_regs() \
+ ((struct pt_regs *) ((char *)current_thread_info() + 2*PAGE_SIZE) - 1)
+
+#define force_successful_syscall_return() (current_pt_regs()->r0 = 0)
+
+static inline unsigned long regs_return_value(struct pt_regs *regs)
+{
+ return regs->r0;
+}
+
+#endif
diff --git a/arch/alpha/include/asm/rwonce.h b/arch/alpha/include/asm/rwonce.h
new file mode 100644
index 0000000000..35542bcf92
--- /dev/null
+++ b/arch/alpha/include/asm/rwonce.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 Google LLC.
+ */
+#ifndef __ASM_RWONCE_H
+#define __ASM_RWONCE_H
+
+#ifdef CONFIG_SMP
+
+#include <asm/barrier.h>
+
+/*
+ * Alpha is apparently daft enough to reorder address-dependent loads
+ * on some CPU implementations. Knock some common sense into it with
+ * a memory barrier in READ_ONCE().
+ *
+ * For the curious, more information about this unusual reordering is
+ * available in chapter 15 of the "perfbook":
+ *
+ * https://kernel.org/pub/linux/kernel/people/paulmck/perfbook/perfbook.html
+ *
+ */
+#define __READ_ONCE(x) \
+({ \
+ __unqual_scalar_typeof(x) __x = \
+ (*(volatile typeof(__x) *)(&(x))); \
+ mb(); \
+ (typeof(x))__x; \
+})
+
+#endif /* CONFIG_SMP */
+
+#include <asm-generic/rwonce.h>
+
+#endif /* __ASM_RWONCE_H */
diff --git a/arch/alpha/include/asm/serial.h b/arch/alpha/include/asm/serial.h
new file mode 100644
index 0000000000..9111544731
--- /dev/null
+++ b/arch/alpha/include/asm/serial.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/serial.h
+ */
+
+
+/*
+ * This assumes you have a 1.8432 MHz clock for your UART.
+ *
+ * It'd be nice if someone built a serial card with a 24.576 MHz
+ * clock, since the 16550A is capable of handling a top speed of 1.5
+ * megabits/second; but this requires the faster clock.
+ */
+#define BASE_BAUD ( 1843200 / 16 )
+
+/* Standard COM flags (except for COM4, because of the 8514 problem) */
+#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
+#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
+#define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ)
+#else
+#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST)
+#define STD_COM4_FLAGS UPF_BOOT_AUTOCONF
+#endif
+
+#define SERIAL_PORT_DFNS \
+ /* UART CLK PORT IRQ FLAGS */ \
+ { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
+ { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
+ { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
+ { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */
diff --git a/arch/alpha/include/asm/setup.h b/arch/alpha/include/asm/setup.h
new file mode 100644
index 0000000000..262aab99e3
--- /dev/null
+++ b/arch/alpha/include/asm/setup.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ALPHA_SETUP_H
+#define __ALPHA_SETUP_H
+
+#include <uapi/asm/setup.h>
+
+/*
+ * We leave one page for the initial stack page, and one page for
+ * the initial process structure. Also, the console eats 3 MB for
+ * the initial bootloader (one of which we can reclaim later).
+ */
+#define BOOT_PCB 0x20000000
+#define BOOT_ADDR 0x20000000
+/* Remove when official MILO sources have ELF support: */
+#define BOOT_SIZE (16*1024)
+
+#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
+#define KERNEL_START_PHYS 0x300000 /* Old bootloaders hardcoded this. */
+#else
+#define KERNEL_START_PHYS 0x1000000 /* required: Wildfire/Titan/Marvel */
+#endif
+
+#define KERNEL_START (PAGE_OFFSET+KERNEL_START_PHYS)
+#define SWAPPER_PGD KERNEL_START
+#define INIT_STACK (PAGE_OFFSET+KERNEL_START_PHYS+0x02000)
+#define EMPTY_PGT (PAGE_OFFSET+KERNEL_START_PHYS+0x04000)
+#define EMPTY_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x08000)
+#define ZERO_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x0A000)
+
+#define START_ADDR (PAGE_OFFSET+KERNEL_START_PHYS+0x10000)
+
+/*
+ * This is setup by the secondary bootstrap loader. Because
+ * the zero page is zeroed out as soon as the vm system is
+ * initialized, we need to copy things out into a more permanent
+ * place.
+ */
+#define PARAM ZERO_PGE
+#define COMMAND_LINE ((char *)(absolute_pointer(PARAM + 0x0000)))
+#define INITRD_START (*(unsigned long *) (PARAM+0x100))
+#define INITRD_SIZE (*(unsigned long *) (PARAM+0x108))
+
+#endif
diff --git a/arch/alpha/include/asm/sfp-machine.h b/arch/alpha/include/asm/sfp-machine.h
new file mode 100644
index 0000000000..5fe63afbd4
--- /dev/null
+++ b/arch/alpha/include/asm/sfp-machine.h
@@ -0,0 +1,82 @@
+/* Machine-dependent software floating-point definitions.
+ Alpha kernel version.
+ Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com),
+ Jakub Jelinek (jakub@redhat.com) and
+ David S. Miller (davem@redhat.com).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If
+ not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifndef _SFP_MACHINE_H
+#define _SFP_MACHINE_H
+
+#define _FP_W_TYPE_SIZE 64
+#define _FP_W_TYPE unsigned long
+#define _FP_WS_TYPE signed long
+#define _FP_I_TYPE long
+
+#define _FP_MUL_MEAT_S(R,X,Y) \
+ _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
+#define _FP_MUL_MEAT_D(R,X,Y) \
+ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y) \
+ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
+#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S _FP_QNANBIT_S
+#define _FP_NANFRAC_D _FP_QNANBIT_D
+#define _FP_NANFRAC_Q _FP_QNANBIT_Q
+#define _FP_NANSIGN_S 1
+#define _FP_NANSIGN_D 1
+#define _FP_NANSIGN_Q 1
+
+#define _FP_KEEPNANFRACP 1
+
+/* Alpha Architecture Handbook, 4.7.10.4 sais that
+ * we should prefer any type of NaN in Fb, then Fa.
+ */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
+ do { \
+ R##_s = Y##_s; \
+ _FP_FRAC_COPY_##wc(R,X); \
+ R##_c = FP_CLS_NAN; \
+ } while (0)
+
+/* Obtain the current rounding mode. */
+#define FP_ROUNDMODE mode
+#define FP_RND_NEAREST (FPCR_DYN_NORMAL >> FPCR_DYN_SHIFT)
+#define FP_RND_ZERO (FPCR_DYN_CHOPPED >> FPCR_DYN_SHIFT)
+#define FP_RND_PINF (FPCR_DYN_PLUS >> FPCR_DYN_SHIFT)
+#define FP_RND_MINF (FPCR_DYN_MINUS >> FPCR_DYN_SHIFT)
+
+/* Exception flags. */
+#define FP_EX_INVALID IEEE_TRAP_ENABLE_INV
+#define FP_EX_OVERFLOW IEEE_TRAP_ENABLE_OVF
+#define FP_EX_UNDERFLOW IEEE_TRAP_ENABLE_UNF
+#define FP_EX_DIVZERO IEEE_TRAP_ENABLE_DZE
+#define FP_EX_INEXACT IEEE_TRAP_ENABLE_INE
+#define FP_EX_DENORM IEEE_TRAP_ENABLE_DNO
+
+#define FP_DENORM_ZERO (swcr & IEEE_MAP_DMZ)
+
+/* We write the results always */
+#define FP_INHIBIT_RESULTS 0
+
+#endif
diff --git a/arch/alpha/include/asm/shmparam.h b/arch/alpha/include/asm/shmparam.h
new file mode 100644
index 0000000000..0c04fde1ae
--- /dev/null
+++ b/arch/alpha/include/asm/shmparam.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_SHMPARAM_H
+#define _ASMAXP_SHMPARAM_H
+
+#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
+
+#endif /* _ASMAXP_SHMPARAM_H */
diff --git a/arch/alpha/include/asm/signal.h b/arch/alpha/include/asm/signal.h
new file mode 100644
index 0000000000..a40f020116
--- /dev/null
+++ b/arch/alpha/include/asm/signal.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_SIGNAL_H
+#define _ASMAXP_SIGNAL_H
+
+#include <uapi/asm/signal.h>
+
+/* Digital Unix defines 64 signals. Most things should be clean enough
+ to redefine this at will, if care is taken to make libc match. */
+
+#define _NSIG 64
+#define _NSIG_BPW 64
+#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t; /* at least 32 bits */
+
+typedef struct {
+ unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+struct osf_sigaction {
+ __sighandler_t sa_handler;
+ old_sigset_t sa_mask;
+ int sa_flags;
+};
+
+#define __ARCH_HAS_KA_RESTORER
+#include <asm/sigcontext.h>
+#endif
diff --git a/arch/alpha/include/asm/smp.h b/arch/alpha/include/asm/smp.h
new file mode 100644
index 0000000000..2264ae7267
--- /dev/null
+++ b/arch/alpha/include/asm/smp.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/bitops.h>
+#include <asm/pal.h>
+
+/* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */
+
+static __inline__ unsigned char
+__hard_smp_processor_id(void)
+{
+ register unsigned char __r0 __asm__("$0");
+ __asm__ __volatile__(
+ "call_pal %1 #whami"
+ : "=r"(__r0)
+ :"i" (PAL_whami)
+ : "$1", "$22", "$23", "$24", "$25");
+ return __r0;
+}
+
+#ifdef CONFIG_SMP
+
+#include <asm/irq.h>
+
+struct cpuinfo_alpha {
+ unsigned long loops_per_jiffy;
+ unsigned long last_asn;
+ int need_new_asn;
+ int asn_lock;
+ unsigned long ipi_count;
+ unsigned long prof_multiplier;
+ unsigned long prof_counter;
+ unsigned char mcheck_expected;
+ unsigned char mcheck_taken;
+ unsigned char mcheck_extra;
+} __attribute__((aligned(64)));
+
+extern struct cpuinfo_alpha cpu_data[NR_CPUS];
+
+#define hard_smp_processor_id() __hard_smp_processor_id()
+#define raw_smp_processor_id() (current_thread_info()->cpu)
+
+extern int smp_num_cpus;
+
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+
+#else /* CONFIG_SMP */
+
+#define hard_smp_processor_id() 0
+#define smp_call_function_on_cpu(func,info,wait,cpu) ({ 0; })
+
+#endif /* CONFIG_SMP */
+
+#define NO_PROC_ID (-1)
+
+#endif
diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h
new file mode 100644
index 0000000000..76a32817e7
--- /dev/null
+++ b/arch/alpha/include/asm/socket.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_SOCKET_H
+#define _ASM_SOCKET_H
+
+#include <uapi/asm/socket.h>
+
+/* O_NONBLOCK clashes with the bits used for socket types. Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK 0x40000000
+#endif /* _ASM_SOCKET_H */
diff --git a/arch/alpha/include/asm/sparsemem.h b/arch/alpha/include/asm/sparsemem.h
new file mode 100644
index 0000000000..a0820fd2d4
--- /dev/null
+++ b/arch/alpha/include/asm/sparsemem.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_SPARSEMEM_H
+#define _ASM_ALPHA_SPARSEMEM_H
+
+#ifdef CONFIG_SPARSEMEM
+
+#define SECTION_SIZE_BITS 27
+
+/*
+ * According to "Alpha Architecture Reference Manual" physical
+ * addresses are at most 48 bits.
+ * https://download.majix.org/dec/alpha_arch_ref.pdf
+ */
+#define MAX_PHYSMEM_BITS 48
+
+#endif /* CONFIG_SPARSEMEM */
+
+#endif /* _ASM_ALPHA_SPARSEMEM_H */
diff --git a/arch/alpha/include/asm/special_insns.h b/arch/alpha/include/asm/special_insns.h
new file mode 100644
index 0000000000..ca2c5c30b2
--- /dev/null
+++ b/arch/alpha/include/asm/special_insns.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_SPECIAL_INSNS_H
+#define __ALPHA_SPECIAL_INSNS_H
+
+enum implver_enum {
+ IMPLVER_EV4,
+ IMPLVER_EV5,
+ IMPLVER_EV6
+};
+
+#ifdef CONFIG_ALPHA_GENERIC
+#define implver() \
+({ unsigned long __implver; \
+ __asm__ ("implver %0" : "=r"(__implver)); \
+ (enum implver_enum) __implver; })
+#else
+/* Try to eliminate some dead code. */
+#ifdef CONFIG_ALPHA_EV4
+#define implver() IMPLVER_EV4
+#endif
+#ifdef CONFIG_ALPHA_EV5
+#define implver() IMPLVER_EV5
+#endif
+#if defined(CONFIG_ALPHA_EV6)
+#define implver() IMPLVER_EV6
+#endif
+#endif
+
+enum amask_enum {
+ AMASK_BWX = (1UL << 0),
+ AMASK_FIX = (1UL << 1),
+ AMASK_CIX = (1UL << 2),
+ AMASK_MAX = (1UL << 8),
+ AMASK_PRECISE_TRAP = (1UL << 9),
+};
+
+#define amask(mask) \
+({ unsigned long __amask, __input = (mask); \
+ __asm__ ("amask %1,%0" : "=r"(__amask) : "rI"(__input)); \
+ __amask; })
+
+#endif /* __ALPHA_SPECIAL_INSNS_H */
diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h
new file mode 100644
index 0000000000..1221cbb86a
--- /dev/null
+++ b/arch/alpha/include/asm/spinlock.h
@@ -0,0 +1,163 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_SPINLOCK_H
+#define _ALPHA_SPINLOCK_H
+
+#include <linux/kernel.h>
+#include <asm/current.h>
+#include <asm/barrier.h>
+#include <asm/processor.h>
+
+/*
+ * Simple spin lock operations. There are two variants, one clears IRQ's
+ * on the local processor, one does not.
+ *
+ * We make no fairness assumptions. They have a cost.
+ */
+
+#define arch_spin_is_locked(x) ((x)->lock != 0)
+
+static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
+{
+ return lock.lock == 0;
+}
+
+static inline void arch_spin_unlock(arch_spinlock_t * lock)
+{
+ mb();
+ lock->lock = 0;
+}
+
+static inline void arch_spin_lock(arch_spinlock_t * lock)
+{
+ long tmp;
+
+ __asm__ __volatile__(
+ "1: ldl_l %0,%1\n"
+ " bne %0,2f\n"
+ " lda %0,1\n"
+ " stl_c %0,%1\n"
+ " beq %0,2f\n"
+ " mb\n"
+ ".subsection 2\n"
+ "2: ldl %0,%1\n"
+ " bne %0,2b\n"
+ " br 1b\n"
+ ".previous"
+ : "=&r" (tmp), "=m" (lock->lock)
+ : "m"(lock->lock) : "memory");
+}
+
+static inline int arch_spin_trylock(arch_spinlock_t *lock)
+{
+ return !test_and_set_bit(0, &lock->lock);
+}
+
+/***********************************************************/
+
+static inline void arch_read_lock(arch_rwlock_t *lock)
+{
+ long regx;
+
+ __asm__ __volatile__(
+ "1: ldl_l %1,%0\n"
+ " blbs %1,6f\n"
+ " subl %1,2,%1\n"
+ " stl_c %1,%0\n"
+ " beq %1,6f\n"
+ " mb\n"
+ ".subsection 2\n"
+ "6: ldl %1,%0\n"
+ " blbs %1,6b\n"
+ " br 1b\n"
+ ".previous"
+ : "=m" (*lock), "=&r" (regx)
+ : "m" (*lock) : "memory");
+}
+
+static inline void arch_write_lock(arch_rwlock_t *lock)
+{
+ long regx;
+
+ __asm__ __volatile__(
+ "1: ldl_l %1,%0\n"
+ " bne %1,6f\n"
+ " lda %1,1\n"
+ " stl_c %1,%0\n"
+ " beq %1,6f\n"
+ " mb\n"
+ ".subsection 2\n"
+ "6: ldl %1,%0\n"
+ " bne %1,6b\n"
+ " br 1b\n"
+ ".previous"
+ : "=m" (*lock), "=&r" (regx)
+ : "m" (*lock) : "memory");
+}
+
+static inline int arch_read_trylock(arch_rwlock_t * lock)
+{
+ long regx;
+ int success;
+
+ __asm__ __volatile__(
+ "1: ldl_l %1,%0\n"
+ " lda %2,0\n"
+ " blbs %1,2f\n"
+ " subl %1,2,%2\n"
+ " stl_c %2,%0\n"
+ " beq %2,6f\n"
+ "2: mb\n"
+ ".subsection 2\n"
+ "6: br 1b\n"
+ ".previous"
+ : "=m" (*lock), "=&r" (regx), "=&r" (success)
+ : "m" (*lock) : "memory");
+
+ return success;
+}
+
+static inline int arch_write_trylock(arch_rwlock_t * lock)
+{
+ long regx;
+ int success;
+
+ __asm__ __volatile__(
+ "1: ldl_l %1,%0\n"
+ " lda %2,0\n"
+ " bne %1,2f\n"
+ " lda %2,1\n"
+ " stl_c %2,%0\n"
+ " beq %2,6f\n"
+ "2: mb\n"
+ ".subsection 2\n"
+ "6: br 1b\n"
+ ".previous"
+ : "=m" (*lock), "=&r" (regx), "=&r" (success)
+ : "m" (*lock) : "memory");
+
+ return success;
+}
+
+static inline void arch_read_unlock(arch_rwlock_t * lock)
+{
+ long regx;
+ __asm__ __volatile__(
+ " mb\n"
+ "1: ldl_l %1,%0\n"
+ " addl %1,2,%1\n"
+ " stl_c %1,%0\n"
+ " beq %1,6f\n"
+ ".subsection 2\n"
+ "6: br 1b\n"
+ ".previous"
+ : "=m" (*lock), "=&r" (regx)
+ : "m" (*lock) : "memory");
+}
+
+static inline void arch_write_unlock(arch_rwlock_t * lock)
+{
+ mb();
+ lock->lock = 0;
+}
+
+#endif /* _ALPHA_SPINLOCK_H */
diff --git a/arch/alpha/include/asm/spinlock_types.h b/arch/alpha/include/asm/spinlock_types.h
new file mode 100644
index 0000000000..2526fd3be5
--- /dev/null
+++ b/arch/alpha/include/asm/spinlock_types.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_SPINLOCK_TYPES_H
+#define _ALPHA_SPINLOCK_TYPES_H
+
+#ifndef __LINUX_SPINLOCK_TYPES_RAW_H
+# error "please don't include this file directly"
+#endif
+
+typedef struct {
+ volatile unsigned int lock;
+} arch_spinlock_t;
+
+#define __ARCH_SPIN_LOCK_UNLOCKED { 0 }
+
+typedef struct {
+ volatile unsigned int lock;
+} arch_rwlock_t;
+
+#define __ARCH_RW_LOCK_UNLOCKED { 0 }
+
+#endif
diff --git a/arch/alpha/include/asm/string.h b/arch/alpha/include/asm/string.h
new file mode 100644
index 0000000000..f043f91ff9
--- /dev/null
+++ b/arch/alpha/include/asm/string.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_STRING_H__
+#define __ALPHA_STRING_H__
+
+#ifdef __KERNEL__
+
+/*
+ * GCC of any recent vintage doesn't do stupid things with bcopy.
+ * EGCS 1.1 knows all about expanding memcpy inline, others don't.
+ *
+ * Similarly for a memset with data = 0.
+ */
+
+#define __HAVE_ARCH_MEMCPY
+extern void * memcpy(void *, const void *, size_t);
+#define __HAVE_ARCH_MEMMOVE
+extern void * memmove(void *, const void *, size_t);
+
+/* For backward compatibility with modules. Unused otherwise. */
+extern void * __memcpy(void *, const void *, size_t);
+
+#define memcpy __builtin_memcpy
+
+#define __HAVE_ARCH_MEMSET
+extern void * __constant_c_memset(void *, unsigned long, size_t);
+extern void * ___memset(void *, int, size_t);
+extern void * __memset(void *, int, size_t);
+extern void * memset(void *, int, size_t);
+
+/* For gcc 3.x, we cannot have the inline function named "memset" because
+ the __builtin_memset will attempt to resolve to the inline as well,
+ leading to a "sorry" about unimplemented recursive inlining. */
+extern inline void *__memset(void *s, int c, size_t n)
+{
+ if (__builtin_constant_p(c)) {
+ if (__builtin_constant_p(n)) {
+ return __builtin_memset(s, c, n);
+ } else {
+ unsigned long c8 = (c & 0xff) * 0x0101010101010101UL;
+ return __constant_c_memset(s, c8, n);
+ }
+ }
+ return ___memset(s, c, n);
+}
+
+#define memset __memset
+
+#define __HAVE_ARCH_STRCPY
+extern char * strcpy(char *,const char *);
+#define __HAVE_ARCH_STRNCPY
+extern char * strncpy(char *, const char *, size_t);
+#define __HAVE_ARCH_STRCAT
+extern char * strcat(char *, const char *);
+#define __HAVE_ARCH_STRNCAT
+extern char * strncat(char *, const char *, size_t);
+#define __HAVE_ARCH_STRCHR
+extern char * strchr(const char *,int);
+#define __HAVE_ARCH_STRRCHR
+extern char * strrchr(const char *,int);
+#define __HAVE_ARCH_STRLEN
+extern size_t strlen(const char *);
+#define __HAVE_ARCH_MEMCHR
+extern void * memchr(const void *, int, size_t);
+
+/* The following routine is like memset except that it writes 16-bit
+ aligned values. The DEST and COUNT parameters must be even for
+ correct operation. */
+
+#define __HAVE_ARCH_MEMSET16
+extern void * __memset16(void *dest, unsigned short, size_t count);
+static inline void *memset16(uint16_t *p, uint16_t v, size_t n)
+{
+ if (__builtin_constant_p(v))
+ return __constant_c_memset(p, 0x0001000100010001UL * v, n * 2);
+ return __memset16(p, v, n * 2);
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_STRING_H__ */
diff --git a/arch/alpha/include/asm/switch_to.h b/arch/alpha/include/asm/switch_to.h
new file mode 100644
index 0000000000..762b7f9753
--- /dev/null
+++ b/arch/alpha/include/asm/switch_to.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_SWITCH_TO_H
+#define __ALPHA_SWITCH_TO_H
+
+
+struct task_struct;
+extern struct task_struct *alpha_switch_to(unsigned long, struct task_struct *);
+
+#define switch_to(P,N,L) \
+ do { \
+ (L) = alpha_switch_to(virt_to_phys(&task_thread_info(N)->pcb), (P)); \
+ check_mmu_context(); \
+ } while (0)
+
+#endif /* __ALPHA_SWITCH_TO_H */
diff --git a/arch/alpha/include/asm/syscall.h b/arch/alpha/include/asm/syscall.h
new file mode 100644
index 0000000000..f21babaeed
--- /dev/null
+++ b/arch/alpha/include/asm/syscall.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_SYSCALL_H
+#define _ASM_ALPHA_SYSCALL_H
+
+#include <uapi/linux/audit.h>
+
+static inline int syscall_get_arch(struct task_struct *task)
+{
+ return AUDIT_ARCH_ALPHA;
+}
+
+static inline long syscall_get_return_value(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ return regs->r0;
+}
+
+#endif /* _ASM_ALPHA_SYSCALL_H */
diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h
new file mode 100644
index 0000000000..4a4d00b379
--- /dev/null
+++ b/arch/alpha/include/asm/thread_info.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_THREAD_INFO_H
+#define _ALPHA_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+#include <asm/processor.h>
+#include <asm/types.h>
+#include <asm/hwrpb.h>
+#include <asm/sysinfo.h>
+#endif
+
+#ifndef __ASSEMBLY__
+struct thread_info {
+ struct pcb_struct pcb; /* palcode state */
+
+ struct task_struct *task; /* main task structure */
+ unsigned int flags; /* low level flags */
+ unsigned int ieee_state; /* see fpu.h */
+
+ unsigned cpu; /* current CPU */
+ int preempt_count; /* 0 => preemptable, <0 => BUG */
+ unsigned int status; /* thread-synchronous flags */
+
+ int bpt_nsaved;
+ unsigned long bpt_addr[2]; /* breakpoint handling */
+ unsigned int bpt_insn[2];
+ unsigned long fp[32];
+};
+
+/*
+ * Macros/functions for gaining access to the thread information structure.
+ */
+#define INIT_THREAD_INFO(tsk) \
+{ \
+ .task = &tsk, \
+ .preempt_count = INIT_PREEMPT_COUNT, \
+}
+
+/* How to get the thread information struct from C. */
+register struct thread_info *__current_thread_info __asm__("$8");
+#define current_thread_info() __current_thread_info
+
+register unsigned long *current_stack_pointer __asm__ ("$30");
+
+#endif /* __ASSEMBLY__ */
+
+/* Thread information allocation. */
+#define THREAD_SIZE_ORDER 1
+#define THREAD_SIZE (2*PAGE_SIZE)
+
+/*
+ * Thread information flags:
+ * - these are process state flags and used from assembly
+ * - pending work-to-be-done flags come first and must be assigned to be
+ * within bits 0 to 7 to fit in and immediate operand.
+ *
+ * TIF_SYSCALL_TRACE is known to be 0 via blbs.
+ */
+#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
+#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
+#define TIF_SIGPENDING 2 /* signal pending */
+#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
+#define TIF_SYSCALL_AUDIT 4 /* syscall audit active */
+#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */
+#define TIF_DIE_IF_KERNEL 9 /* dik recursion lock */
+#define TIF_MEMDIE 13 /* is terminating due to OOM killer */
+#define TIF_POLLING_NRFLAG 14 /* idle is polling for TIF_NEED_RESCHED */
+
+#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
+#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
+#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
+#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
+#define _TIF_NOTIFY_SIGNAL (1<<TIF_NOTIFY_SIGNAL)
+#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+
+/* Work to do on interrupt/exception return. */
+#define _TIF_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+ _TIF_NOTIFY_RESUME | _TIF_NOTIFY_SIGNAL)
+
+#define TS_UAC_NOPRINT 0x0001 /* ! Preserve the following three */
+#define TS_UAC_NOFIX 0x0002 /* ! flags as they match */
+#define TS_UAC_SIGBUS 0x0004 /* ! userspace part of 'osf_sysinfo' */
+
+#define TS_SAVED_FP 0x0008
+#define TS_RESTORE_FP 0x0010
+
+#define SET_UNALIGN_CTL(task,value) ({ \
+ __u32 status = task_thread_info(task)->status & ~UAC_BITMASK; \
+ if (value & PR_UNALIGN_NOPRINT) \
+ status |= TS_UAC_NOPRINT; \
+ if (value & PR_UNALIGN_SIGBUS) \
+ status |= TS_UAC_SIGBUS; \
+ if (value & 4) /* alpha-specific */ \
+ status |= TS_UAC_NOFIX; \
+ task_thread_info(task)->status = status; \
+ 0; })
+
+#define GET_UNALIGN_CTL(task,value) ({ \
+ __u32 status = task_thread_info(task)->status & ~UAC_BITMASK; \
+ __u32 res = 0; \
+ if (status & TS_UAC_NOPRINT) \
+ res |= PR_UNALIGN_NOPRINT; \
+ if (status & TS_UAC_SIGBUS) \
+ res |= PR_UNALIGN_SIGBUS; \
+ if (status & TS_UAC_NOFIX) \
+ res |= 4; \
+ put_user(res, (int __user *)(value)); \
+ })
+
+#ifndef __ASSEMBLY__
+extern void __save_fpu(void);
+
+static inline void save_fpu(void)
+{
+ if (!(current_thread_info()->status & TS_SAVED_FP)) {
+ current_thread_info()->status |= TS_SAVED_FP;
+ __save_fpu();
+ }
+}
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* _ALPHA_THREAD_INFO_H */
diff --git a/arch/alpha/include/asm/timex.h b/arch/alpha/include/asm/timex.h
new file mode 100644
index 0000000000..f89798da8a
--- /dev/null
+++ b/arch/alpha/include/asm/timex.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/include/asm-alpha/timex.h
+ *
+ * ALPHA architecture timex specifications
+ */
+#ifndef _ASMALPHA_TIMEX_H
+#define _ASMALPHA_TIMEX_H
+
+/* With only one or two oddballs, we use the RTC as the ticker, selecting
+ the 32.768kHz reference clock, which nicely divides down to our HZ. */
+#define CLOCK_TICK_RATE 32768
+
+/*
+ * Standard way to access the cycle counter.
+ * Currently only used on SMP for scheduling.
+ *
+ * Only the low 32 bits are available as a continuously counting entity.
+ * But this only means we'll force a reschedule every 8 seconds or so,
+ * which isn't an evil thing.
+ */
+
+typedef unsigned int cycles_t;
+
+static inline cycles_t get_cycles (void)
+{
+ cycles_t ret;
+ __asm__ __volatile__ ("rpcc %0" : "=r"(ret));
+ return ret;
+}
+#define get_cycles get_cycles
+
+#endif
diff --git a/arch/alpha/include/asm/tlb.h b/arch/alpha/include/asm/tlb.h
new file mode 100644
index 0000000000..4f79e331af
--- /dev/null
+++ b/arch/alpha/include/asm/tlb.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_TLB_H
+#define _ALPHA_TLB_H
+
+#include <asm-generic/tlb.h>
+
+#define __pte_free_tlb(tlb, pte, address) pte_free((tlb)->mm, pte)
+#define __pmd_free_tlb(tlb, pmd, address) pmd_free((tlb)->mm, pmd)
+
+#endif
diff --git a/arch/alpha/include/asm/tlbflush.h b/arch/alpha/include/asm/tlbflush.h
new file mode 100644
index 0000000000..94dc37cf87
--- /dev/null
+++ b/arch/alpha/include/asm/tlbflush.h
@@ -0,0 +1,152 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_TLBFLUSH_H
+#define _ALPHA_TLBFLUSH_H
+
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <asm/compiler.h>
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __MMU_EXTERN_INLINE
+#endif
+
+extern void __load_new_mm_context(struct mm_struct *);
+
+
+/* Use a few helper functions to hide the ugly broken ASN
+ numbers on early Alphas (ev4 and ev45). */
+
+__EXTERN_INLINE void
+ev4_flush_tlb_current(struct mm_struct *mm)
+{
+ __load_new_mm_context(mm);
+ tbiap();
+}
+
+__EXTERN_INLINE void
+ev5_flush_tlb_current(struct mm_struct *mm)
+{
+ __load_new_mm_context(mm);
+}
+
+/* Flush just one page in the current TLB set. We need to be very
+ careful about the icache here, there is no way to invalidate a
+ specific icache page. */
+
+__EXTERN_INLINE void
+ev4_flush_tlb_current_page(struct mm_struct * mm,
+ struct vm_area_struct *vma,
+ unsigned long addr)
+{
+ int tbi_flag = 2;
+ if (vma->vm_flags & VM_EXEC) {
+ __load_new_mm_context(mm);
+ tbi_flag = 3;
+ }
+ tbi(tbi_flag, addr);
+}
+
+__EXTERN_INLINE void
+ev5_flush_tlb_current_page(struct mm_struct * mm,
+ struct vm_area_struct *vma,
+ unsigned long addr)
+{
+ if (vma->vm_flags & VM_EXEC)
+ __load_new_mm_context(mm);
+ else
+ tbi(2, addr);
+}
+
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define flush_tlb_current alpha_mv.mv_flush_tlb_current
+# define flush_tlb_current_page alpha_mv.mv_flush_tlb_current_page
+#else
+# ifdef CONFIG_ALPHA_EV4
+# define flush_tlb_current ev4_flush_tlb_current
+# define flush_tlb_current_page ev4_flush_tlb_current_page
+# else
+# define flush_tlb_current ev5_flush_tlb_current
+# define flush_tlb_current_page ev5_flush_tlb_current_page
+# endif
+#endif
+
+#ifdef __MMU_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __MMU_EXTERN_INLINE
+#endif
+
+/* Flush current user mapping. */
+static inline void
+flush_tlb(void)
+{
+ flush_tlb_current(current->active_mm);
+}
+
+/* Flush someone else's user mapping. */
+static inline void
+flush_tlb_other(struct mm_struct *mm)
+{
+ unsigned long *mmc = &mm->context[smp_processor_id()];
+ /* Check it's not zero first to avoid cacheline ping pong
+ when possible. */
+ if (*mmc) *mmc = 0;
+}
+
+#ifndef CONFIG_SMP
+/* Flush everything (kernel mapping may also have changed
+ due to vmalloc/vfree). */
+static inline void flush_tlb_all(void)
+{
+ tbia();
+}
+
+/* Flush a specified user mapping. */
+static inline void
+flush_tlb_mm(struct mm_struct *mm)
+{
+ if (mm == current->active_mm)
+ flush_tlb_current(mm);
+ else
+ flush_tlb_other(mm);
+}
+
+/* Page-granular tlb flush. */
+static inline void
+flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
+{
+ struct mm_struct *mm = vma->vm_mm;
+
+ if (mm == current->active_mm)
+ flush_tlb_current_page(mm, vma, addr);
+ else
+ flush_tlb_other(mm);
+}
+
+/* Flush a specified range of user mapping. On the Alpha we flush
+ the whole user tlb. */
+static inline void
+flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+ unsigned long end)
+{
+ flush_tlb_mm(vma->vm_mm);
+}
+
+#else /* CONFIG_SMP */
+
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm(struct mm_struct *);
+extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
+extern void flush_tlb_range(struct vm_area_struct *, unsigned long,
+ unsigned long);
+
+#endif /* CONFIG_SMP */
+
+static inline void flush_tlb_kernel_range(unsigned long start,
+ unsigned long end)
+{
+ flush_tlb_all();
+}
+
+#endif /* _ALPHA_TLBFLUSH_H */
diff --git a/arch/alpha/include/asm/topology.h b/arch/alpha/include/asm/topology.h
new file mode 100644
index 0000000000..7d393036aa
--- /dev/null
+++ b/arch/alpha/include/asm/topology.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_TOPOLOGY_H
+#define _ASM_ALPHA_TOPOLOGY_H
+
+#include <linux/smp.h>
+#include <linux/threads.h>
+#include <linux/numa.h>
+#include <asm/machvec.h>
+
+# include <asm-generic/topology.h>
+
+#endif /* _ASM_ALPHA_TOPOLOGY_H */
diff --git a/arch/alpha/include/asm/types.h b/arch/alpha/include/asm/types.h
new file mode 100644
index 0000000000..b60b602764
--- /dev/null
+++ b/arch/alpha/include/asm/types.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_TYPES_H
+#define _ALPHA_TYPES_H
+
+#include <uapi/asm/types.h>
+
+#endif /* _ALPHA_TYPES_H */
diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h
new file mode 100644
index 0000000000..c32c2584c0
--- /dev/null
+++ b/arch/alpha/include/asm/uaccess.h
@@ -0,0 +1,292 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_UACCESS_H
+#define __ALPHA_UACCESS_H
+
+#include <asm-generic/access_ok.h>
+/*
+ * These are the main single-value transfer routines. They automatically
+ * use the right size if we just have the right pointer type.
+ *
+ * As the alpha uses the same address space for kernel and user
+ * data, we can just do these as direct assignments. (Of course, the
+ * exception handling means that it's no longer "just"...)
+ *
+ * Careful to not
+ * (a) re-use the arguments for side effects (sizeof/typeof is ok)
+ * (b) require any knowledge of processes at this stage
+ */
+#define put_user(x, ptr) \
+ __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
+#define get_user(x, ptr) \
+ __get_user_check((x), (ptr), sizeof(*(ptr)))
+
+/*
+ * The "__xxx" versions do not do address space checking, useful when
+ * doing multiple accesses to the same area (the programmer has to do the
+ * checks by hand with "access_ok()")
+ */
+#define __put_user(x, ptr) \
+ __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
+#define __get_user(x, ptr) \
+ __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
+
+/*
+ * The "lda %1, 2b-1b(%0)" bits are magic to get the assembler to
+ * encode the bits we need for resolving the exception. See the
+ * more extensive comments with fixup_inline_exception below for
+ * more information.
+ */
+#define EXC(label,cont,res,err) \
+ ".section __ex_table,\"a\"\n" \
+ " .long "#label"-.\n" \
+ " lda "#res","#cont"-"#label"("#err")\n" \
+ ".previous\n"
+
+extern void __get_user_unknown(void);
+
+#define __get_user_nocheck(x, ptr, size) \
+({ \
+ long __gu_err = 0; \
+ unsigned long __gu_val; \
+ __chk_user_ptr(ptr); \
+ switch (size) { \
+ case 1: __get_user_8(ptr); break; \
+ case 2: __get_user_16(ptr); break; \
+ case 4: __get_user_32(ptr); break; \
+ case 8: __get_user_64(ptr); break; \
+ default: __get_user_unknown(); break; \
+ } \
+ (x) = (__force __typeof__(*(ptr))) __gu_val; \
+ __gu_err; \
+})
+
+#define __get_user_check(x, ptr, size) \
+({ \
+ long __gu_err = -EFAULT; \
+ unsigned long __gu_val = 0; \
+ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
+ if (__access_ok(__gu_addr, size)) { \
+ __gu_err = 0; \
+ switch (size) { \
+ case 1: __get_user_8(__gu_addr); break; \
+ case 2: __get_user_16(__gu_addr); break; \
+ case 4: __get_user_32(__gu_addr); break; \
+ case 8: __get_user_64(__gu_addr); break; \
+ default: __get_user_unknown(); break; \
+ } \
+ } \
+ (x) = (__force __typeof__(*(ptr))) __gu_val; \
+ __gu_err; \
+})
+
+struct __large_struct { unsigned long buf[100]; };
+#define __m(x) (*(struct __large_struct __user *)(x))
+
+#define __get_user_64(addr) \
+ __asm__("1: ldq %0,%2\n" \
+ "2:\n" \
+ EXC(1b,2b,%0,%1) \
+ : "=r"(__gu_val), "=r"(__gu_err) \
+ : "m"(__m(addr)), "1"(__gu_err))
+
+#define __get_user_32(addr) \
+ __asm__("1: ldl %0,%2\n" \
+ "2:\n" \
+ EXC(1b,2b,%0,%1) \
+ : "=r"(__gu_val), "=r"(__gu_err) \
+ : "m"(__m(addr)), "1"(__gu_err))
+
+#ifdef __alpha_bwx__
+/* Those lucky bastards with ev56 and later CPUs can do byte/word moves. */
+
+#define __get_user_16(addr) \
+ __asm__("1: ldwu %0,%2\n" \
+ "2:\n" \
+ EXC(1b,2b,%0,%1) \
+ : "=r"(__gu_val), "=r"(__gu_err) \
+ : "m"(__m(addr)), "1"(__gu_err))
+
+#define __get_user_8(addr) \
+ __asm__("1: ldbu %0,%2\n" \
+ "2:\n" \
+ EXC(1b,2b,%0,%1) \
+ : "=r"(__gu_val), "=r"(__gu_err) \
+ : "m"(__m(addr)), "1"(__gu_err))
+#else
+/* Unfortunately, we can't get an unaligned access trap for the sub-word
+ load, so we have to do a general unaligned operation. */
+
+#define __get_user_16(addr) \
+{ \
+ long __gu_tmp; \
+ __asm__("1: ldq_u %0,0(%3)\n" \
+ "2: ldq_u %1,1(%3)\n" \
+ " extwl %0,%3,%0\n" \
+ " extwh %1,%3,%1\n" \
+ " or %0,%1,%0\n" \
+ "3:\n" \
+ EXC(1b,3b,%0,%2) \
+ EXC(2b,3b,%0,%2) \
+ : "=&r"(__gu_val), "=&r"(__gu_tmp), "=r"(__gu_err) \
+ : "r"(addr), "2"(__gu_err)); \
+}
+
+#define __get_user_8(addr) \
+ __asm__("1: ldq_u %0,0(%2)\n" \
+ " extbl %0,%2,%0\n" \
+ "2:\n" \
+ EXC(1b,2b,%0,%1) \
+ : "=&r"(__gu_val), "=r"(__gu_err) \
+ : "r"(addr), "1"(__gu_err))
+#endif
+
+extern void __put_user_unknown(void);
+
+#define __put_user_nocheck(x, ptr, size) \
+({ \
+ long __pu_err = 0; \
+ __chk_user_ptr(ptr); \
+ switch (size) { \
+ case 1: __put_user_8(x, ptr); break; \
+ case 2: __put_user_16(x, ptr); break; \
+ case 4: __put_user_32(x, ptr); break; \
+ case 8: __put_user_64(x, ptr); break; \
+ default: __put_user_unknown(); break; \
+ } \
+ __pu_err; \
+})
+
+#define __put_user_check(x, ptr, size) \
+({ \
+ long __pu_err = -EFAULT; \
+ __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
+ if (__access_ok(__pu_addr, size)) { \
+ __pu_err = 0; \
+ switch (size) { \
+ case 1: __put_user_8(x, __pu_addr); break; \
+ case 2: __put_user_16(x, __pu_addr); break; \
+ case 4: __put_user_32(x, __pu_addr); break; \
+ case 8: __put_user_64(x, __pu_addr); break; \
+ default: __put_user_unknown(); break; \
+ } \
+ } \
+ __pu_err; \
+})
+
+/*
+ * The "__put_user_xx()" macros tell gcc they read from memory
+ * instead of writing: this is because they do not write to
+ * any memory gcc knows about, so there are no aliasing issues
+ */
+#define __put_user_64(x, addr) \
+__asm__ __volatile__("1: stq %r2,%1\n" \
+ "2:\n" \
+ EXC(1b,2b,$31,%0) \
+ : "=r"(__pu_err) \
+ : "m" (__m(addr)), "rJ" (x), "0"(__pu_err))
+
+#define __put_user_32(x, addr) \
+__asm__ __volatile__("1: stl %r2,%1\n" \
+ "2:\n" \
+ EXC(1b,2b,$31,%0) \
+ : "=r"(__pu_err) \
+ : "m"(__m(addr)), "rJ"(x), "0"(__pu_err))
+
+#ifdef __alpha_bwx__
+/* Those lucky bastards with ev56 and later CPUs can do byte/word moves. */
+
+#define __put_user_16(x, addr) \
+__asm__ __volatile__("1: stw %r2,%1\n" \
+ "2:\n" \
+ EXC(1b,2b,$31,%0) \
+ : "=r"(__pu_err) \
+ : "m"(__m(addr)), "rJ"(x), "0"(__pu_err))
+
+#define __put_user_8(x, addr) \
+__asm__ __volatile__("1: stb %r2,%1\n" \
+ "2:\n" \
+ EXC(1b,2b,$31,%0) \
+ : "=r"(__pu_err) \
+ : "m"(__m(addr)), "rJ"(x), "0"(__pu_err))
+#else
+/* Unfortunately, we can't get an unaligned access trap for the sub-word
+ write, so we have to do a general unaligned operation. */
+
+#define __put_user_16(x, addr) \
+{ \
+ long __pu_tmp1, __pu_tmp2, __pu_tmp3, __pu_tmp4; \
+ __asm__ __volatile__( \
+ "1: ldq_u %2,1(%5)\n" \
+ "2: ldq_u %1,0(%5)\n" \
+ " inswh %6,%5,%4\n" \
+ " inswl %6,%5,%3\n" \
+ " mskwh %2,%5,%2\n" \
+ " mskwl %1,%5,%1\n" \
+ " or %2,%4,%2\n" \
+ " or %1,%3,%1\n" \
+ "3: stq_u %2,1(%5)\n" \
+ "4: stq_u %1,0(%5)\n" \
+ "5:\n" \
+ EXC(1b,5b,$31,%0) \
+ EXC(2b,5b,$31,%0) \
+ EXC(3b,5b,$31,%0) \
+ EXC(4b,5b,$31,%0) \
+ : "=r"(__pu_err), "=&r"(__pu_tmp1), \
+ "=&r"(__pu_tmp2), "=&r"(__pu_tmp3), \
+ "=&r"(__pu_tmp4) \
+ : "r"(addr), "r"((unsigned long)(x)), "0"(__pu_err)); \
+}
+
+#define __put_user_8(x, addr) \
+{ \
+ long __pu_tmp1, __pu_tmp2; \
+ __asm__ __volatile__( \
+ "1: ldq_u %1,0(%4)\n" \
+ " insbl %3,%4,%2\n" \
+ " mskbl %1,%4,%1\n" \
+ " or %1,%2,%1\n" \
+ "2: stq_u %1,0(%4)\n" \
+ "3:\n" \
+ EXC(1b,3b,$31,%0) \
+ EXC(2b,3b,$31,%0) \
+ : "=r"(__pu_err), \
+ "=&r"(__pu_tmp1), "=&r"(__pu_tmp2) \
+ : "r"((unsigned long)(x)), "r"(addr), "0"(__pu_err)); \
+}
+#endif
+
+
+/*
+ * Complex access routines
+ */
+
+extern long __copy_user(void *to, const void *from, long len);
+
+static inline unsigned long
+raw_copy_from_user(void *to, const void __user *from, unsigned long len)
+{
+ return __copy_user(to, (__force const void *)from, len);
+}
+
+static inline unsigned long
+raw_copy_to_user(void __user *to, const void *from, unsigned long len)
+{
+ return __copy_user((__force void *)to, from, len);
+}
+
+extern long __clear_user(void __user *to, long len);
+
+static inline long
+clear_user(void __user *to, long len)
+{
+ if (__access_ok(to, len))
+ len = __clear_user(to, len);
+ return len;
+}
+
+extern long strncpy_from_user(char *dest, const char __user *src, long count);
+extern __must_check long strnlen_user(const char __user *str, long n);
+
+#include <asm/extable.h>
+
+#endif /* __ALPHA_UACCESS_H */
diff --git a/arch/alpha/include/asm/ucontext.h b/arch/alpha/include/asm/ucontext.h
new file mode 100644
index 0000000000..af1f3465b8
--- /dev/null
+++ b/arch/alpha/include/asm/ucontext.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_UCONTEXT_H
+#define _ASMAXP_UCONTEXT_H
+
+struct ucontext {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ old_sigset_t uc_osf_sigmask;
+ stack_t uc_stack;
+ struct sigcontext uc_mcontext;
+ sigset_t uc_sigmask; /* mask last for extensibility */
+};
+
+#endif /* !_ASMAXP_UCONTEXT_H */
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
new file mode 100644
index 0000000000..caabd92ea7
--- /dev/null
+++ b/arch/alpha/include/asm/unistd.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_UNISTD_H
+#define _ALPHA_UNISTD_H
+
+#include <uapi/asm/unistd.h>
+
+#define NR_syscalls __NR_syscalls
+
+#define __ARCH_WANT_NEW_STAT
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_SYS_VFORK
+#define __ARCH_WANT_SYS_CLONE
+
+#endif /* _ALPHA_UNISTD_H */
diff --git a/arch/alpha/include/asm/user.h b/arch/alpha/include/asm/user.h
new file mode 100644
index 0000000000..c9f525a6aa
--- /dev/null
+++ b/arch/alpha/include/asm/user.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_USER_H
+#define _ALPHA_USER_H
+
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+
+#include <asm/page.h>
+#include <asm/reg.h>
+
+/*
+ * Core file format: The core file is written in such a way that gdb
+ * can understand it and provide useful information to the user (under
+ * linux we use the `trad-core' bfd, NOT the osf-core). The file contents
+ * are as follows:
+ *
+ * upage: 1 page consisting of a user struct that tells gdb
+ * what is present in the file. Directly after this is a
+ * copy of the task_struct, which is currently not used by gdb,
+ * but it may come in handy at some point. All of the registers
+ * are stored as part of the upage. The upage should always be
+ * only one page long.
+ * data: The data segment follows next. We use current->end_text to
+ * current->brk to pick up all of the user variables, plus any memory
+ * that may have been sbrk'ed. No attempt is made to determine if a
+ * page is demand-zero or if a page is totally unused, we just cover
+ * the entire range. All of the addresses are rounded in such a way
+ * that an integral number of pages is written.
+ * stack: We need the stack information in order to get a meaningful
+ * backtrace. We need to write the data from usp to
+ * current->start_stack, so we round each of these in order to be able
+ * to write an integer number of pages.
+ */
+struct user {
+ unsigned long regs[EF_SIZE/8+32]; /* integer and fp regs */
+ size_t u_tsize; /* text size (pages) */
+ size_t u_dsize; /* data size (pages) */
+ size_t u_ssize; /* stack size (pages) */
+ unsigned long start_code; /* text starting address */
+ unsigned long start_data; /* data starting address */
+ unsigned long start_stack; /* stack starting address */
+ long int signal; /* signal causing core dump */
+ unsigned long u_ar0; /* help gdb find registers */
+ unsigned long magic; /* identifies a core file */
+ char u_comm[32]; /* user command name */
+};
+
+#endif /* _ALPHA_USER_H */
diff --git a/arch/alpha/include/asm/vga.h b/arch/alpha/include/asm/vga.h
new file mode 100644
index 0000000000..4c347a8454
--- /dev/null
+++ b/arch/alpha/include/asm/vga.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Access to VGA videoram
+ *
+ * (c) 1998 Martin Mares <mj@ucw.cz>
+ */
+
+#ifndef _LINUX_ASM_VGA_H_
+#define _LINUX_ASM_VGA_H_
+
+#include <asm/io.h>
+
+#define VT_BUF_HAVE_RW
+#define VT_BUF_HAVE_MEMSETW
+#define VT_BUF_HAVE_MEMCPYW
+
+static inline void scr_writew(u16 val, volatile u16 *addr)
+{
+ if (__is_ioaddr(addr))
+ __raw_writew(val, (volatile u16 __iomem *) addr);
+ else
+ *addr = val;
+}
+
+static inline u16 scr_readw(volatile const u16 *addr)
+{
+ if (__is_ioaddr(addr))
+ return __raw_readw((volatile const u16 __iomem *) addr);
+ else
+ return *addr;
+}
+
+static inline void scr_memsetw(u16 *s, u16 c, unsigned int count)
+{
+ if (__is_ioaddr(s))
+ memsetw_io((u16 __iomem *) s, c, count);
+ else
+ memset16(s, c, count / 2);
+}
+
+/* Do not trust that the usage will be correct; analyze the arguments. */
+extern void scr_memcpyw(u16 *d, const u16 *s, unsigned int count);
+
+/* ??? These are currently only used for downloading character sets. As
+ such, they don't need memory barriers. Is this all they are intended
+ to be used for? */
+#define vga_readb(a) readb((u8 __iomem *)(a))
+#define vga_writeb(v,a) writeb(v, (u8 __iomem *)(a))
+
+#ifdef CONFIG_VGA_HOSE
+#include <linux/ioport.h>
+#include <linux/pci.h>
+
+extern struct pci_controller *pci_vga_hose;
+
+# define __is_port_vga(a) \
+ (((a) >= 0x3b0) && ((a) < 0x3e0) && \
+ ((a) != 0x3b3) && ((a) != 0x3d3))
+
+# define __is_mem_vga(a) \
+ (((a) >= 0xa0000) && ((a) <= 0xc0000))
+
+# define FIXUP_IOADDR_VGA(a) do { \
+ if (pci_vga_hose && __is_port_vga(a)) \
+ (a) += pci_vga_hose->io_space->start; \
+ } while(0)
+
+# define FIXUP_MEMADDR_VGA(a) do { \
+ if (pci_vga_hose && __is_mem_vga(a)) \
+ (a) += pci_vga_hose->mem_space->start; \
+ } while(0)
+
+#else /* CONFIG_VGA_HOSE */
+# define pci_vga_hose 0
+# define __is_port_vga(a) 0
+# define __is_mem_vga(a) 0
+# define FIXUP_IOADDR_VGA(a)
+# define FIXUP_MEMADDR_VGA(a)
+#endif /* CONFIG_VGA_HOSE */
+
+#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap(x, s))
+
+#endif
diff --git a/arch/alpha/include/asm/vmalloc.h b/arch/alpha/include/asm/vmalloc.h
new file mode 100644
index 0000000000..0a9a366a4d
--- /dev/null
+++ b/arch/alpha/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_ALPHA_VMALLOC_H
+#define _ASM_ALPHA_VMALLOC_H
+
+#endif /* _ASM_ALPHA_VMALLOC_H */
diff --git a/arch/alpha/include/asm/word-at-a-time.h b/arch/alpha/include/asm/word-at-a-time.h
new file mode 100644
index 0000000000..4035265f1a
--- /dev/null
+++ b/arch/alpha/include/asm/word-at-a-time.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_WORD_AT_A_TIME_H
+#define _ASM_WORD_AT_A_TIME_H
+
+#include <asm/compiler.h>
+
+/*
+ * word-at-a-time interface for Alpha.
+ */
+
+/*
+ * We do not use the word_at_a_time struct on Alpha, but it needs to be
+ * implemented to humour the generic code.
+ */
+struct word_at_a_time {
+ const unsigned long unused;
+};
+
+#define WORD_AT_A_TIME_CONSTANTS { 0 }
+
+/* Return nonzero if val has a zero */
+static inline unsigned long has_zero(unsigned long val, unsigned long *bits, const struct word_at_a_time *c)
+{
+ unsigned long zero_locations = __kernel_cmpbge(0, val);
+ *bits = zero_locations;
+ return zero_locations;
+}
+
+static inline unsigned long prep_zero_mask(unsigned long val, unsigned long bits, const struct word_at_a_time *c)
+{
+ return bits;
+}
+
+#define create_zero_mask(bits) (bits)
+
+static inline unsigned long find_zero(unsigned long bits)
+{
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+ /* Simple if have CIX instructions */
+ return __kernel_cttz(bits);
+#else
+ unsigned long t1, t2, t3;
+ /* Retain lowest set bit only */
+ bits &= -bits;
+ /* Binary search for lowest set bit */
+ t1 = bits & 0xf0;
+ t2 = bits & 0xcc;
+ t3 = bits & 0xaa;
+ if (t1) t1 = 4;
+ if (t2) t2 = 2;
+ if (t3) t3 = 1;
+ return t1 + t2 + t3;
+#endif
+}
+
+#define zero_bytemask(mask) ((2ul << (find_zero(mask) * 8)) - 1)
+
+#endif /* _ASM_WORD_AT_A_TIME_H */
diff --git a/arch/alpha/include/asm/wrperfmon.h b/arch/alpha/include/asm/wrperfmon.h
new file mode 100644
index 0000000000..c97b82a1f7
--- /dev/null
+++ b/arch/alpha/include/asm/wrperfmon.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Definitions for use with the Alpha wrperfmon PAL call.
+ */
+
+#ifndef __ALPHA_WRPERFMON_H
+#define __ALPHA_WRPERFMON_H
+
+/* Following commands are implemented on all CPUs */
+#define PERFMON_CMD_DISABLE 0
+#define PERFMON_CMD_ENABLE 1
+#define PERFMON_CMD_DESIRED_EVENTS 2
+#define PERFMON_CMD_LOGGING_OPTIONS 3
+/* Following commands on EV5/EV56/PCA56 only */
+#define PERFMON_CMD_INT_FREQ 4
+#define PERFMON_CMD_ENABLE_CLEAR 7
+/* Following commands are on EV5 and better CPUs */
+#define PERFMON_CMD_READ 5
+#define PERFMON_CMD_WRITE 6
+/* Following command are on EV6 and better CPUs */
+#define PERFMON_CMD_ENABLE_WRITE 7
+/* Following command are on EV67 and better CPUs */
+#define PERFMON_CMD_I_STAT 8
+#define PERFMON_CMD_PMPC 9
+
+
+/* EV5/EV56/PCA56 Counters */
+#define EV5_PCTR_0 (1UL<<0)
+#define EV5_PCTR_1 (1UL<<1)
+#define EV5_PCTR_2 (1UL<<2)
+
+#define EV5_PCTR_0_COUNT_SHIFT 48
+#define EV5_PCTR_1_COUNT_SHIFT 32
+#define EV5_PCTR_2_COUNT_SHIFT 16
+
+#define EV5_PCTR_0_COUNT_MASK 0xffffUL
+#define EV5_PCTR_1_COUNT_MASK 0xffffUL
+#define EV5_PCTR_2_COUNT_MASK 0x3fffUL
+
+/* EV6 Counters */
+#define EV6_PCTR_0 (1UL<<0)
+#define EV6_PCTR_1 (1UL<<1)
+
+#define EV6_PCTR_0_COUNT_SHIFT 28
+#define EV6_PCTR_1_COUNT_SHIFT 6
+
+#define EV6_PCTR_0_COUNT_MASK 0xfffffUL
+#define EV6_PCTR_1_COUNT_MASK 0xfffffUL
+
+/* EV67 (and subsequent) counters */
+#define EV67_PCTR_0 (1UL<<0)
+#define EV67_PCTR_1 (1UL<<1)
+
+#define EV67_PCTR_0_COUNT_SHIFT 28
+#define EV67_PCTR_1_COUNT_SHIFT 6
+
+#define EV67_PCTR_0_COUNT_MASK 0xfffffUL
+#define EV67_PCTR_1_COUNT_MASK 0xfffffUL
+
+
+/*
+ * The Alpha Architecure Handbook, vers. 4 (1998) appears to have a misprint
+ * in Table E-23 regarding the bits that set the event PCTR 1 counts.
+ * Hopefully what we have here is correct.
+ */
+#define EV6_PCTR_0_EVENT_MASK 0x10UL
+#define EV6_PCTR_1_EVENT_MASK 0x0fUL
+
+/* EV6 Events */
+#define EV6_PCTR_0_CYCLES (0UL << 4)
+#define EV6_PCTR_0_INSTRUCTIONS (1UL << 4)
+
+#define EV6_PCTR_1_CYCLES 0
+#define EV6_PCTR_1_BRANCHES 1
+#define EV6_PCTR_1_BRANCH_MISPREDICTS 2
+#define EV6_PCTR_1_DTB_SINGLE_MISSES 3
+#define EV6_PCTR_1_DTB_DOUBLE_MISSES 4
+#define EV6_PCTR_1_ITB_MISSES 5
+#define EV6_PCTR_1_UNALIGNED_TRAPS 6
+#define EV6_PCTR_1_REPLY_TRAPS 7
+
+/* From the Alpha Architecture Reference Manual, 4th edn., 2002 */
+#define EV67_PCTR_MODE_MASK 0x10UL
+#define EV67_PCTR_EVENT_MASK 0x0CUL
+
+#define EV67_PCTR_MODE_PROFILEME (1UL<<4)
+#define EV67_PCTR_MODE_AGGREGATE (0UL<<4)
+
+#define EV67_PCTR_INSTR_CYCLES (0UL<<2)
+#define EV67_PCTR_CYCLES_UNDEF (1UL<<2)
+#define EV67_PCTR_INSTR_BCACHEMISS (2UL<<2)
+#define EV67_PCTR_CYCLES_MBOX (3UL<<2)
+
+#endif
diff --git a/arch/alpha/include/asm/xchg.h b/arch/alpha/include/asm/xchg.h
new file mode 100644
index 0000000000..7adb80c674
--- /dev/null
+++ b/arch/alpha/include/asm/xchg.h
@@ -0,0 +1,246 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CMPXCHG_H
+#error Do not include xchg.h directly!
+#else
+/*
+ * xchg/xchg_local and cmpxchg/cmpxchg_local share the same code
+ * except that local version do not have the expensive memory barrier.
+ * So this file is included twice from asm/cmpxchg.h.
+ */
+
+/*
+ * Atomic exchange.
+ * Since it can be used to implement critical sections
+ * it must clobber "memory" (also for interrupts in UP).
+ */
+
+static inline unsigned long
+____xchg(_u8, volatile char *m, unsigned long val)
+{
+ unsigned long ret, tmp, addr64;
+
+ __asm__ __volatile__(
+ " andnot %4,7,%3\n"
+ " insbl %1,%4,%1\n"
+ "1: ldq_l %2,0(%3)\n"
+ " extbl %2,%4,%0\n"
+ " mskbl %2,%4,%2\n"
+ " or %1,%2,%2\n"
+ " stq_c %2,0(%3)\n"
+ " beq %2,2f\n"
+ ".subsection 2\n"
+ "2: br 1b\n"
+ ".previous"
+ : "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
+ : "r" ((long)m), "1" (val) : "memory");
+
+ return ret;
+}
+
+static inline unsigned long
+____xchg(_u16, volatile short *m, unsigned long val)
+{
+ unsigned long ret, tmp, addr64;
+
+ __asm__ __volatile__(
+ " andnot %4,7,%3\n"
+ " inswl %1,%4,%1\n"
+ "1: ldq_l %2,0(%3)\n"
+ " extwl %2,%4,%0\n"
+ " mskwl %2,%4,%2\n"
+ " or %1,%2,%2\n"
+ " stq_c %2,0(%3)\n"
+ " beq %2,2f\n"
+ ".subsection 2\n"
+ "2: br 1b\n"
+ ".previous"
+ : "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
+ : "r" ((long)m), "1" (val) : "memory");
+
+ return ret;
+}
+
+static inline unsigned long
+____xchg(_u32, volatile int *m, unsigned long val)
+{
+ unsigned long dummy;
+
+ __asm__ __volatile__(
+ "1: ldl_l %0,%4\n"
+ " bis $31,%3,%1\n"
+ " stl_c %1,%2\n"
+ " beq %1,2f\n"
+ ".subsection 2\n"
+ "2: br 1b\n"
+ ".previous"
+ : "=&r" (val), "=&r" (dummy), "=m" (*m)
+ : "rI" (val), "m" (*m) : "memory");
+
+ return val;
+}
+
+static inline unsigned long
+____xchg(_u64, volatile long *m, unsigned long val)
+{
+ unsigned long dummy;
+
+ __asm__ __volatile__(
+ "1: ldq_l %0,%4\n"
+ " bis $31,%3,%1\n"
+ " stq_c %1,%2\n"
+ " beq %1,2f\n"
+ ".subsection 2\n"
+ "2: br 1b\n"
+ ".previous"
+ : "=&r" (val), "=&r" (dummy), "=m" (*m)
+ : "rI" (val), "m" (*m) : "memory");
+
+ return val;
+}
+
+/* This function doesn't exist, so you'll get a linker error
+ if something tries to do an invalid xchg(). */
+extern void __xchg_called_with_bad_pointer(void);
+
+static __always_inline unsigned long
+____xchg(, volatile void *ptr, unsigned long x, int size)
+{
+ switch (size) {
+ case 1:
+ return ____xchg(_u8, ptr, x);
+ case 2:
+ return ____xchg(_u16, ptr, x);
+ case 4:
+ return ____xchg(_u32, ptr, x);
+ case 8:
+ return ____xchg(_u64, ptr, x);
+ }
+ __xchg_called_with_bad_pointer();
+ return x;
+}
+
+/*
+ * Atomic compare and exchange. Compare OLD with MEM, if identical,
+ * store NEW in MEM. Return the initial value in MEM. Success is
+ * indicated by comparing RETURN with OLD.
+ */
+
+static inline unsigned long
+____cmpxchg(_u8, volatile char *m, unsigned char old, unsigned char new)
+{
+ unsigned long prev, tmp, cmp, addr64;
+
+ __asm__ __volatile__(
+ " andnot %5,7,%4\n"
+ " insbl %1,%5,%1\n"
+ "1: ldq_l %2,0(%4)\n"
+ " extbl %2,%5,%0\n"
+ " cmpeq %0,%6,%3\n"
+ " beq %3,2f\n"
+ " mskbl %2,%5,%2\n"
+ " or %1,%2,%2\n"
+ " stq_c %2,0(%4)\n"
+ " beq %2,3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
+ : "r" ((long)m), "Ir" (old), "1" (new) : "memory");
+
+ return prev;
+}
+
+static inline unsigned long
+____cmpxchg(_u16, volatile short *m, unsigned short old, unsigned short new)
+{
+ unsigned long prev, tmp, cmp, addr64;
+
+ __asm__ __volatile__(
+ " andnot %5,7,%4\n"
+ " inswl %1,%5,%1\n"
+ "1: ldq_l %2,0(%4)\n"
+ " extwl %2,%5,%0\n"
+ " cmpeq %0,%6,%3\n"
+ " beq %3,2f\n"
+ " mskwl %2,%5,%2\n"
+ " or %1,%2,%2\n"
+ " stq_c %2,0(%4)\n"
+ " beq %2,3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
+ : "r" ((long)m), "Ir" (old), "1" (new) : "memory");
+
+ return prev;
+}
+
+static inline unsigned long
+____cmpxchg(_u32, volatile int *m, int old, int new)
+{
+ unsigned long prev, cmp;
+
+ __asm__ __volatile__(
+ "1: ldl_l %0,%5\n"
+ " cmpeq %0,%3,%1\n"
+ " beq %1,2f\n"
+ " mov %4,%1\n"
+ " stl_c %1,%2\n"
+ " beq %1,3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : "=&r"(prev), "=&r"(cmp), "=m"(*m)
+ : "r"((long) old), "r"(new), "m"(*m) : "memory");
+
+ return prev;
+}
+
+static inline unsigned long
+____cmpxchg(_u64, volatile long *m, unsigned long old, unsigned long new)
+{
+ unsigned long prev, cmp;
+
+ __asm__ __volatile__(
+ "1: ldq_l %0,%5\n"
+ " cmpeq %0,%3,%1\n"
+ " beq %1,2f\n"
+ " mov %4,%1\n"
+ " stq_c %1,%2\n"
+ " beq %1,3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : "=&r"(prev), "=&r"(cmp), "=m"(*m)
+ : "r"((long) old), "r"(new), "m"(*m) : "memory");
+
+ return prev;
+}
+
+/* This function doesn't exist, so you'll get a linker error
+ if something tries to do an invalid cmpxchg(). */
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+static __always_inline unsigned long
+____cmpxchg(, volatile void *ptr, unsigned long old, unsigned long new,
+ int size)
+{
+ switch (size) {
+ case 1:
+ return ____cmpxchg(_u8, ptr, old, new);
+ case 2:
+ return ____cmpxchg(_u16, ptr, old, new);
+ case 4:
+ return ____cmpxchg(_u32, ptr, old, new);
+ case 8:
+ return ____cmpxchg(_u64, ptr, old, new);
+ }
+ __cmpxchg_called_with_bad_pointer();
+ return old;
+}
+
+#endif
diff --git a/arch/alpha/include/asm/xor.h b/arch/alpha/include/asm/xor.h
new file mode 100644
index 0000000000..e0de0c233a
--- /dev/null
+++ b/arch/alpha/include/asm/xor.h
@@ -0,0 +1,866 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * include/asm-alpha/xor.h
+ *
+ * Optimized RAID-5 checksumming functions for alpha EV5 and EV6
+ */
+
+extern void
+xor_alpha_2(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2);
+extern void
+xor_alpha_3(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3);
+extern void
+xor_alpha_4(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4);
+extern void
+xor_alpha_5(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4,
+ const unsigned long * __restrict p5);
+
+extern void
+xor_alpha_prefetch_2(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2);
+extern void
+xor_alpha_prefetch_3(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3);
+extern void
+xor_alpha_prefetch_4(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4);
+extern void
+xor_alpha_prefetch_5(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4,
+ const unsigned long * __restrict p5);
+
+asm(" \n\
+ .text \n\
+ .align 3 \n\
+ .ent xor_alpha_2 \n\
+xor_alpha_2: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ .align 4 \n\
+2: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,8($17) \n\
+ ldq $3,8($18) \n\
+ \n\
+ ldq $4,16($17) \n\
+ ldq $5,16($18) \n\
+ ldq $6,24($17) \n\
+ ldq $7,24($18) \n\
+ \n\
+ ldq $19,32($17) \n\
+ ldq $20,32($18) \n\
+ ldq $21,40($17) \n\
+ ldq $22,40($18) \n\
+ \n\
+ ldq $23,48($17) \n\
+ ldq $24,48($18) \n\
+ ldq $25,56($17) \n\
+ xor $0,$1,$0 # 7 cycles from $1 load \n\
+ \n\
+ ldq $27,56($18) \n\
+ xor $2,$3,$2 \n\
+ stq $0,0($17) \n\
+ xor $4,$5,$4 \n\
+ \n\
+ stq $2,8($17) \n\
+ xor $6,$7,$6 \n\
+ stq $4,16($17) \n\
+ xor $19,$20,$19 \n\
+ \n\
+ stq $6,24($17) \n\
+ xor $21,$22,$21 \n\
+ stq $19,32($17) \n\
+ xor $23,$24,$23 \n\
+ \n\
+ stq $21,40($17) \n\
+ xor $25,$27,$25 \n\
+ stq $23,48($17) \n\
+ subq $16,1,$16 \n\
+ \n\
+ stq $25,56($17) \n\
+ addq $17,64,$17 \n\
+ addq $18,64,$18 \n\
+ bgt $16,2b \n\
+ \n\
+ ret \n\
+ .end xor_alpha_2 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_3 \n\
+xor_alpha_3: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ .align 4 \n\
+3: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,8($17) \n\
+ \n\
+ ldq $4,8($18) \n\
+ ldq $6,16($17) \n\
+ ldq $7,16($18) \n\
+ ldq $21,24($17) \n\
+ \n\
+ ldq $22,24($18) \n\
+ ldq $24,32($17) \n\
+ ldq $25,32($18) \n\
+ ldq $5,8($19) \n\
+ \n\
+ ldq $20,16($19) \n\
+ ldq $23,24($19) \n\
+ ldq $27,32($19) \n\
+ nop \n\
+ \n\
+ xor $0,$1,$1 # 8 cycles from $0 load \n\
+ xor $3,$4,$4 # 6 cycles from $4 load \n\
+ xor $6,$7,$7 # 6 cycles from $7 load \n\
+ xor $21,$22,$22 # 5 cycles from $22 load \n\
+ \n\
+ xor $1,$2,$2 # 9 cycles from $2 load \n\
+ xor $24,$25,$25 # 5 cycles from $25 load \n\
+ stq $2,0($17) \n\
+ xor $4,$5,$5 # 6 cycles from $5 load \n\
+ \n\
+ stq $5,8($17) \n\
+ xor $7,$20,$20 # 7 cycles from $20 load \n\
+ stq $20,16($17) \n\
+ xor $22,$23,$23 # 7 cycles from $23 load \n\
+ \n\
+ stq $23,24($17) \n\
+ xor $25,$27,$27 # 7 cycles from $27 load \n\
+ stq $27,32($17) \n\
+ nop \n\
+ \n\
+ ldq $0,40($17) \n\
+ ldq $1,40($18) \n\
+ ldq $3,48($17) \n\
+ ldq $4,48($18) \n\
+ \n\
+ ldq $6,56($17) \n\
+ ldq $7,56($18) \n\
+ ldq $2,40($19) \n\
+ ldq $5,48($19) \n\
+ \n\
+ ldq $20,56($19) \n\
+ xor $0,$1,$1 # 4 cycles from $1 load \n\
+ xor $3,$4,$4 # 5 cycles from $4 load \n\
+ xor $6,$7,$7 # 5 cycles from $7 load \n\
+ \n\
+ xor $1,$2,$2 # 4 cycles from $2 load \n\
+ xor $4,$5,$5 # 5 cycles from $5 load \n\
+ stq $2,40($17) \n\
+ xor $7,$20,$20 # 4 cycles from $20 load \n\
+ \n\
+ stq $5,48($17) \n\
+ subq $16,1,$16 \n\
+ stq $20,56($17) \n\
+ addq $19,64,$19 \n\
+ \n\
+ addq $18,64,$18 \n\
+ addq $17,64,$17 \n\
+ bgt $16,3b \n\
+ ret \n\
+ .end xor_alpha_3 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_4 \n\
+xor_alpha_4: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ .align 4 \n\
+4: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,0($20) \n\
+ \n\
+ ldq $4,8($17) \n\
+ ldq $5,8($18) \n\
+ ldq $6,8($19) \n\
+ ldq $7,8($20) \n\
+ \n\
+ ldq $21,16($17) \n\
+ ldq $22,16($18) \n\
+ ldq $23,16($19) \n\
+ ldq $24,16($20) \n\
+ \n\
+ ldq $25,24($17) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ ldq $27,24($18) \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ ldq $0,24($19) \n\
+ xor $1,$3,$3 \n\
+ ldq $1,24($20) \n\
+ xor $4,$5,$5 # 7 cycles from $5 load \n\
+ \n\
+ stq $3,0($17) \n\
+ xor $6,$7,$7 \n\
+ xor $21,$22,$22 # 7 cycles from $22 load \n\
+ xor $5,$7,$7 \n\
+ \n\
+ stq $7,8($17) \n\
+ xor $23,$24,$24 # 7 cycles from $24 load \n\
+ ldq $2,32($17) \n\
+ xor $22,$24,$24 \n\
+ \n\
+ ldq $3,32($18) \n\
+ ldq $4,32($19) \n\
+ ldq $5,32($20) \n\
+ xor $25,$27,$27 # 8 cycles from $27 load \n\
+ \n\
+ ldq $6,40($17) \n\
+ ldq $7,40($18) \n\
+ ldq $21,40($19) \n\
+ ldq $22,40($20) \n\
+ \n\
+ stq $24,16($17) \n\
+ xor $0,$1,$1 # 9 cycles from $1 load \n\
+ xor $2,$3,$3 # 5 cycles from $3 load \n\
+ xor $27,$1,$1 \n\
+ \n\
+ stq $1,24($17) \n\
+ xor $4,$5,$5 # 5 cycles from $5 load \n\
+ ldq $23,48($17) \n\
+ ldq $24,48($18) \n\
+ \n\
+ ldq $25,48($19) \n\
+ xor $3,$5,$5 \n\
+ ldq $27,48($20) \n\
+ ldq $0,56($17) \n\
+ \n\
+ ldq $1,56($18) \n\
+ ldq $2,56($19) \n\
+ xor $6,$7,$7 # 8 cycles from $6 load \n\
+ ldq $3,56($20) \n\
+ \n\
+ stq $5,32($17) \n\
+ xor $21,$22,$22 # 8 cycles from $22 load \n\
+ xor $7,$22,$22 \n\
+ xor $23,$24,$24 # 5 cycles from $24 load \n\
+ \n\
+ stq $22,40($17) \n\
+ xor $25,$27,$27 # 5 cycles from $27 load \n\
+ xor $24,$27,$27 \n\
+ xor $0,$1,$1 # 5 cycles from $1 load \n\
+ \n\
+ stq $27,48($17) \n\
+ xor $2,$3,$3 # 4 cycles from $3 load \n\
+ xor $1,$3,$3 \n\
+ subq $16,1,$16 \n\
+ \n\
+ stq $3,56($17) \n\
+ addq $20,64,$20 \n\
+ addq $19,64,$19 \n\
+ addq $18,64,$18 \n\
+ \n\
+ addq $17,64,$17 \n\
+ bgt $16,4b \n\
+ ret \n\
+ .end xor_alpha_4 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_5 \n\
+xor_alpha_5: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ .align 4 \n\
+5: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,0($20) \n\
+ \n\
+ ldq $4,0($21) \n\
+ ldq $5,8($17) \n\
+ ldq $6,8($18) \n\
+ ldq $7,8($19) \n\
+ \n\
+ ldq $22,8($20) \n\
+ ldq $23,8($21) \n\
+ ldq $24,16($17) \n\
+ ldq $25,16($18) \n\
+ \n\
+ ldq $27,16($19) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ ldq $28,16($20) \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ ldq $0,16($21) \n\
+ xor $1,$3,$3 \n\
+ ldq $1,24($17) \n\
+ xor $3,$4,$4 # 7 cycles from $4 load \n\
+ \n\
+ stq $4,0($17) \n\
+ xor $5,$6,$6 # 7 cycles from $6 load \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ xor $6,$23,$23 # 7 cycles from $23 load \n\
+ \n\
+ ldq $2,24($18) \n\
+ xor $22,$23,$23 \n\
+ ldq $3,24($19) \n\
+ xor $24,$25,$25 # 8 cycles from $25 load \n\
+ \n\
+ stq $23,8($17) \n\
+ xor $25,$27,$27 # 8 cycles from $27 load \n\
+ ldq $4,24($20) \n\
+ xor $28,$0,$0 # 7 cycles from $0 load \n\
+ \n\
+ ldq $5,24($21) \n\
+ xor $27,$0,$0 \n\
+ ldq $6,32($17) \n\
+ ldq $7,32($18) \n\
+ \n\
+ stq $0,16($17) \n\
+ xor $1,$2,$2 # 6 cycles from $2 load \n\
+ ldq $22,32($19) \n\
+ xor $3,$4,$4 # 4 cycles from $4 load \n\
+ \n\
+ ldq $23,32($20) \n\
+ xor $2,$4,$4 \n\
+ ldq $24,32($21) \n\
+ ldq $25,40($17) \n\
+ \n\
+ ldq $27,40($18) \n\
+ ldq $28,40($19) \n\
+ ldq $0,40($20) \n\
+ xor $4,$5,$5 # 7 cycles from $5 load \n\
+ \n\
+ stq $5,24($17) \n\
+ xor $6,$7,$7 # 7 cycles from $7 load \n\
+ ldq $1,40($21) \n\
+ ldq $2,48($17) \n\
+ \n\
+ ldq $3,48($18) \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ ldq $4,48($19) \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ \n\
+ ldq $5,48($20) \n\
+ xor $22,$24,$24 \n\
+ ldq $6,48($21) \n\
+ xor $25,$27,$27 # 7 cycles from $27 load \n\
+ \n\
+ stq $24,32($17) \n\
+ xor $27,$28,$28 # 8 cycles from $28 load \n\
+ ldq $7,56($17) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ \n\
+ ldq $22,56($18) \n\
+ ldq $23,56($19) \n\
+ ldq $24,56($20) \n\
+ ldq $25,56($21) \n\
+ \n\
+ xor $28,$1,$1 \n\
+ xor $2,$3,$3 # 9 cycles from $3 load \n\
+ xor $3,$4,$4 # 9 cycles from $4 load \n\
+ xor $5,$6,$6 # 8 cycles from $6 load \n\
+ \n\
+ stq $1,40($17) \n\
+ xor $4,$6,$6 \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ \n\
+ stq $6,48($17) \n\
+ xor $22,$24,$24 \n\
+ subq $16,1,$16 \n\
+ xor $24,$25,$25 # 8 cycles from $25 load \n\
+ \n\
+ stq $25,56($17) \n\
+ addq $21,64,$21 \n\
+ addq $20,64,$20 \n\
+ addq $19,64,$19 \n\
+ \n\
+ addq $18,64,$18 \n\
+ addq $17,64,$17 \n\
+ bgt $16,5b \n\
+ ret \n\
+ .end xor_alpha_5 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_prefetch_2 \n\
+xor_alpha_prefetch_2: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ \n\
+ ldq $31, 0($17) \n\
+ ldq $31, 0($18) \n\
+ \n\
+ ldq $31, 64($17) \n\
+ ldq $31, 64($18) \n\
+ \n\
+ ldq $31, 128($17) \n\
+ ldq $31, 128($18) \n\
+ \n\
+ ldq $31, 192($17) \n\
+ ldq $31, 192($18) \n\
+ .align 4 \n\
+2: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,8($17) \n\
+ ldq $3,8($18) \n\
+ \n\
+ ldq $4,16($17) \n\
+ ldq $5,16($18) \n\
+ ldq $6,24($17) \n\
+ ldq $7,24($18) \n\
+ \n\
+ ldq $19,32($17) \n\
+ ldq $20,32($18) \n\
+ ldq $21,40($17) \n\
+ ldq $22,40($18) \n\
+ \n\
+ ldq $23,48($17) \n\
+ ldq $24,48($18) \n\
+ ldq $25,56($17) \n\
+ ldq $27,56($18) \n\
+ \n\
+ ldq $31,256($17) \n\
+ xor $0,$1,$0 # 8 cycles from $1 load \n\
+ ldq $31,256($18) \n\
+ xor $2,$3,$2 \n\
+ \n\
+ stq $0,0($17) \n\
+ xor $4,$5,$4 \n\
+ stq $2,8($17) \n\
+ xor $6,$7,$6 \n\
+ \n\
+ stq $4,16($17) \n\
+ xor $19,$20,$19 \n\
+ stq $6,24($17) \n\
+ xor $21,$22,$21 \n\
+ \n\
+ stq $19,32($17) \n\
+ xor $23,$24,$23 \n\
+ stq $21,40($17) \n\
+ xor $25,$27,$25 \n\
+ \n\
+ stq $23,48($17) \n\
+ subq $16,1,$16 \n\
+ stq $25,56($17) \n\
+ addq $17,64,$17 \n\
+ \n\
+ addq $18,64,$18 \n\
+ bgt $16,2b \n\
+ ret \n\
+ .end xor_alpha_prefetch_2 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_prefetch_3 \n\
+xor_alpha_prefetch_3: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ \n\
+ ldq $31, 0($17) \n\
+ ldq $31, 0($18) \n\
+ ldq $31, 0($19) \n\
+ \n\
+ ldq $31, 64($17) \n\
+ ldq $31, 64($18) \n\
+ ldq $31, 64($19) \n\
+ \n\
+ ldq $31, 128($17) \n\
+ ldq $31, 128($18) \n\
+ ldq $31, 128($19) \n\
+ \n\
+ ldq $31, 192($17) \n\
+ ldq $31, 192($18) \n\
+ ldq $31, 192($19) \n\
+ .align 4 \n\
+3: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,8($17) \n\
+ \n\
+ ldq $4,8($18) \n\
+ ldq $6,16($17) \n\
+ ldq $7,16($18) \n\
+ ldq $21,24($17) \n\
+ \n\
+ ldq $22,24($18) \n\
+ ldq $24,32($17) \n\
+ ldq $25,32($18) \n\
+ ldq $5,8($19) \n\
+ \n\
+ ldq $20,16($19) \n\
+ ldq $23,24($19) \n\
+ ldq $27,32($19) \n\
+ nop \n\
+ \n\
+ xor $0,$1,$1 # 8 cycles from $0 load \n\
+ xor $3,$4,$4 # 7 cycles from $4 load \n\
+ xor $6,$7,$7 # 6 cycles from $7 load \n\
+ xor $21,$22,$22 # 5 cycles from $22 load \n\
+ \n\
+ xor $1,$2,$2 # 9 cycles from $2 load \n\
+ xor $24,$25,$25 # 5 cycles from $25 load \n\
+ stq $2,0($17) \n\
+ xor $4,$5,$5 # 6 cycles from $5 load \n\
+ \n\
+ stq $5,8($17) \n\
+ xor $7,$20,$20 # 7 cycles from $20 load \n\
+ stq $20,16($17) \n\
+ xor $22,$23,$23 # 7 cycles from $23 load \n\
+ \n\
+ stq $23,24($17) \n\
+ xor $25,$27,$27 # 7 cycles from $27 load \n\
+ stq $27,32($17) \n\
+ nop \n\
+ \n\
+ ldq $0,40($17) \n\
+ ldq $1,40($18) \n\
+ ldq $3,48($17) \n\
+ ldq $4,48($18) \n\
+ \n\
+ ldq $6,56($17) \n\
+ ldq $7,56($18) \n\
+ ldq $2,40($19) \n\
+ ldq $5,48($19) \n\
+ \n\
+ ldq $20,56($19) \n\
+ ldq $31,256($17) \n\
+ ldq $31,256($18) \n\
+ ldq $31,256($19) \n\
+ \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ xor $3,$4,$4 # 5 cycles from $4 load \n\
+ xor $6,$7,$7 # 5 cycles from $7 load \n\
+ xor $1,$2,$2 # 4 cycles from $2 load \n\
+ \n\
+ xor $4,$5,$5 # 5 cycles from $5 load \n\
+ xor $7,$20,$20 # 4 cycles from $20 load \n\
+ stq $2,40($17) \n\
+ subq $16,1,$16 \n\
+ \n\
+ stq $5,48($17) \n\
+ addq $19,64,$19 \n\
+ stq $20,56($17) \n\
+ addq $18,64,$18 \n\
+ \n\
+ addq $17,64,$17 \n\
+ bgt $16,3b \n\
+ ret \n\
+ .end xor_alpha_prefetch_3 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_prefetch_4 \n\
+xor_alpha_prefetch_4: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ \n\
+ ldq $31, 0($17) \n\
+ ldq $31, 0($18) \n\
+ ldq $31, 0($19) \n\
+ ldq $31, 0($20) \n\
+ \n\
+ ldq $31, 64($17) \n\
+ ldq $31, 64($18) \n\
+ ldq $31, 64($19) \n\
+ ldq $31, 64($20) \n\
+ \n\
+ ldq $31, 128($17) \n\
+ ldq $31, 128($18) \n\
+ ldq $31, 128($19) \n\
+ ldq $31, 128($20) \n\
+ \n\
+ ldq $31, 192($17) \n\
+ ldq $31, 192($18) \n\
+ ldq $31, 192($19) \n\
+ ldq $31, 192($20) \n\
+ .align 4 \n\
+4: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,0($20) \n\
+ \n\
+ ldq $4,8($17) \n\
+ ldq $5,8($18) \n\
+ ldq $6,8($19) \n\
+ ldq $7,8($20) \n\
+ \n\
+ ldq $21,16($17) \n\
+ ldq $22,16($18) \n\
+ ldq $23,16($19) \n\
+ ldq $24,16($20) \n\
+ \n\
+ ldq $25,24($17) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ ldq $27,24($18) \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ ldq $0,24($19) \n\
+ xor $1,$3,$3 \n\
+ ldq $1,24($20) \n\
+ xor $4,$5,$5 # 7 cycles from $5 load \n\
+ \n\
+ stq $3,0($17) \n\
+ xor $6,$7,$7 \n\
+ xor $21,$22,$22 # 7 cycles from $22 load \n\
+ xor $5,$7,$7 \n\
+ \n\
+ stq $7,8($17) \n\
+ xor $23,$24,$24 # 7 cycles from $24 load \n\
+ ldq $2,32($17) \n\
+ xor $22,$24,$24 \n\
+ \n\
+ ldq $3,32($18) \n\
+ ldq $4,32($19) \n\
+ ldq $5,32($20) \n\
+ xor $25,$27,$27 # 8 cycles from $27 load \n\
+ \n\
+ ldq $6,40($17) \n\
+ ldq $7,40($18) \n\
+ ldq $21,40($19) \n\
+ ldq $22,40($20) \n\
+ \n\
+ stq $24,16($17) \n\
+ xor $0,$1,$1 # 9 cycles from $1 load \n\
+ xor $2,$3,$3 # 5 cycles from $3 load \n\
+ xor $27,$1,$1 \n\
+ \n\
+ stq $1,24($17) \n\
+ xor $4,$5,$5 # 5 cycles from $5 load \n\
+ ldq $23,48($17) \n\
+ xor $3,$5,$5 \n\
+ \n\
+ ldq $24,48($18) \n\
+ ldq $25,48($19) \n\
+ ldq $27,48($20) \n\
+ ldq $0,56($17) \n\
+ \n\
+ ldq $1,56($18) \n\
+ ldq $2,56($19) \n\
+ ldq $3,56($20) \n\
+ xor $6,$7,$7 # 8 cycles from $6 load \n\
+ \n\
+ ldq $31,256($17) \n\
+ xor $21,$22,$22 # 8 cycles from $22 load \n\
+ ldq $31,256($18) \n\
+ xor $7,$22,$22 \n\
+ \n\
+ ldq $31,256($19) \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ ldq $31,256($20) \n\
+ xor $25,$27,$27 # 6 cycles from $27 load \n\
+ \n\
+ stq $5,32($17) \n\
+ xor $24,$27,$27 \n\
+ xor $0,$1,$1 # 7 cycles from $1 load \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ stq $22,40($17) \n\
+ xor $1,$3,$3 \n\
+ stq $27,48($17) \n\
+ subq $16,1,$16 \n\
+ \n\
+ stq $3,56($17) \n\
+ addq $20,64,$20 \n\
+ addq $19,64,$19 \n\
+ addq $18,64,$18 \n\
+ \n\
+ addq $17,64,$17 \n\
+ bgt $16,4b \n\
+ ret \n\
+ .end xor_alpha_prefetch_4 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_prefetch_5 \n\
+xor_alpha_prefetch_5: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ \n\
+ ldq $31, 0($17) \n\
+ ldq $31, 0($18) \n\
+ ldq $31, 0($19) \n\
+ ldq $31, 0($20) \n\
+ ldq $31, 0($21) \n\
+ \n\
+ ldq $31, 64($17) \n\
+ ldq $31, 64($18) \n\
+ ldq $31, 64($19) \n\
+ ldq $31, 64($20) \n\
+ ldq $31, 64($21) \n\
+ \n\
+ ldq $31, 128($17) \n\
+ ldq $31, 128($18) \n\
+ ldq $31, 128($19) \n\
+ ldq $31, 128($20) \n\
+ ldq $31, 128($21) \n\
+ \n\
+ ldq $31, 192($17) \n\
+ ldq $31, 192($18) \n\
+ ldq $31, 192($19) \n\
+ ldq $31, 192($20) \n\
+ ldq $31, 192($21) \n\
+ .align 4 \n\
+5: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,0($20) \n\
+ \n\
+ ldq $4,0($21) \n\
+ ldq $5,8($17) \n\
+ ldq $6,8($18) \n\
+ ldq $7,8($19) \n\
+ \n\
+ ldq $22,8($20) \n\
+ ldq $23,8($21) \n\
+ ldq $24,16($17) \n\
+ ldq $25,16($18) \n\
+ \n\
+ ldq $27,16($19) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ ldq $28,16($20) \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ ldq $0,16($21) \n\
+ xor $1,$3,$3 \n\
+ ldq $1,24($17) \n\
+ xor $3,$4,$4 # 7 cycles from $4 load \n\
+ \n\
+ stq $4,0($17) \n\
+ xor $5,$6,$6 # 7 cycles from $6 load \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ xor $6,$23,$23 # 7 cycles from $23 load \n\
+ \n\
+ ldq $2,24($18) \n\
+ xor $22,$23,$23 \n\
+ ldq $3,24($19) \n\
+ xor $24,$25,$25 # 8 cycles from $25 load \n\
+ \n\
+ stq $23,8($17) \n\
+ xor $25,$27,$27 # 8 cycles from $27 load \n\
+ ldq $4,24($20) \n\
+ xor $28,$0,$0 # 7 cycles from $0 load \n\
+ \n\
+ ldq $5,24($21) \n\
+ xor $27,$0,$0 \n\
+ ldq $6,32($17) \n\
+ ldq $7,32($18) \n\
+ \n\
+ stq $0,16($17) \n\
+ xor $1,$2,$2 # 6 cycles from $2 load \n\
+ ldq $22,32($19) \n\
+ xor $3,$4,$4 # 4 cycles from $4 load \n\
+ \n\
+ ldq $23,32($20) \n\
+ xor $2,$4,$4 \n\
+ ldq $24,32($21) \n\
+ ldq $25,40($17) \n\
+ \n\
+ ldq $27,40($18) \n\
+ ldq $28,40($19) \n\
+ ldq $0,40($20) \n\
+ xor $4,$5,$5 # 7 cycles from $5 load \n\
+ \n\
+ stq $5,24($17) \n\
+ xor $6,$7,$7 # 7 cycles from $7 load \n\
+ ldq $1,40($21) \n\
+ ldq $2,48($17) \n\
+ \n\
+ ldq $3,48($18) \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ ldq $4,48($19) \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ \n\
+ ldq $5,48($20) \n\
+ xor $22,$24,$24 \n\
+ ldq $6,48($21) \n\
+ xor $25,$27,$27 # 7 cycles from $27 load \n\
+ \n\
+ stq $24,32($17) \n\
+ xor $27,$28,$28 # 8 cycles from $28 load \n\
+ ldq $7,56($17) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ \n\
+ ldq $22,56($18) \n\
+ ldq $23,56($19) \n\
+ ldq $24,56($20) \n\
+ ldq $25,56($21) \n\
+ \n\
+ ldq $31,256($17) \n\
+ xor $28,$1,$1 \n\
+ ldq $31,256($18) \n\
+ xor $2,$3,$3 # 9 cycles from $3 load \n\
+ \n\
+ ldq $31,256($19) \n\
+ xor $3,$4,$4 # 9 cycles from $4 load \n\
+ ldq $31,256($20) \n\
+ xor $5,$6,$6 # 8 cycles from $6 load \n\
+ \n\
+ stq $1,40($17) \n\
+ xor $4,$6,$6 \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ \n\
+ stq $6,48($17) \n\
+ xor $22,$24,$24 \n\
+ ldq $31,256($21) \n\
+ xor $24,$25,$25 # 8 cycles from $25 load \n\
+ \n\
+ stq $25,56($17) \n\
+ subq $16,1,$16 \n\
+ addq $21,64,$21 \n\
+ addq $20,64,$20 \n\
+ \n\
+ addq $19,64,$19 \n\
+ addq $18,64,$18 \n\
+ addq $17,64,$17 \n\
+ bgt $16,5b \n\
+ \n\
+ ret \n\
+ .end xor_alpha_prefetch_5 \n\
+");
+
+static struct xor_block_template xor_block_alpha = {
+ .name = "alpha",
+ .do_2 = xor_alpha_2,
+ .do_3 = xor_alpha_3,
+ .do_4 = xor_alpha_4,
+ .do_5 = xor_alpha_5,
+};
+
+static struct xor_block_template xor_block_alpha_prefetch = {
+ .name = "alpha prefetch",
+ .do_2 = xor_alpha_prefetch_2,
+ .do_3 = xor_alpha_prefetch_3,
+ .do_4 = xor_alpha_prefetch_4,
+ .do_5 = xor_alpha_prefetch_5,
+};
+
+/* For grins, also test the generic routines. */
+#include <asm-generic/xor.h>
+
+#undef XOR_TRY_TEMPLATES
+#define XOR_TRY_TEMPLATES \
+ do { \
+ xor_speed(&xor_block_8regs); \
+ xor_speed(&xor_block_32regs); \
+ xor_speed(&xor_block_alpha); \
+ xor_speed(&xor_block_alpha_prefetch); \
+ } while (0)
+
+/* Force the use of alpha_prefetch if EV6, as it is significantly
+ faster in the cold cache case. */
+#define XOR_SELECT_TEMPLATE(FASTEST) \
+ (implver() == IMPLVER_EV6 ? &xor_block_alpha_prefetch : FASTEST)