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-rw-r--r--arch/s390/include/asm/setup.h161
1 files changed, 161 insertions, 0 deletions
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
new file mode 100644
index 0000000000..25cadc2b9c
--- /dev/null
+++ b/arch/s390/include/asm/setup.h
@@ -0,0 +1,161 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * S390 version
+ * Copyright IBM Corp. 1999, 2017
+ */
+#ifndef _ASM_S390_SETUP_H
+#define _ASM_S390_SETUP_H
+
+#include <linux/bits.h>
+#include <uapi/asm/setup.h>
+#include <linux/build_bug.h>
+
+#define PARMAREA 0x10400
+
+#define COMMAND_LINE_SIZE CONFIG_COMMAND_LINE_SIZE
+/*
+ * Machine features detected in early.c
+ */
+
+#define MACHINE_FLAG_VM BIT(0)
+#define MACHINE_FLAG_KVM BIT(1)
+#define MACHINE_FLAG_LPAR BIT(2)
+#define MACHINE_FLAG_DIAG9C BIT(3)
+#define MACHINE_FLAG_ESOP BIT(4)
+#define MACHINE_FLAG_IDTE BIT(5)
+#define MACHINE_FLAG_EDAT1 BIT(7)
+#define MACHINE_FLAG_EDAT2 BIT(8)
+#define MACHINE_FLAG_TOPOLOGY BIT(10)
+#define MACHINE_FLAG_TE BIT(11)
+#define MACHINE_FLAG_TLB_LC BIT(12)
+#define MACHINE_FLAG_VX BIT(13)
+#define MACHINE_FLAG_TLB_GUEST BIT(14)
+#define MACHINE_FLAG_NX BIT(15)
+#define MACHINE_FLAG_GS BIT(16)
+#define MACHINE_FLAG_SCC BIT(17)
+#define MACHINE_FLAG_PCI_MIO BIT(18)
+#define MACHINE_FLAG_RDP BIT(19)
+
+#define LPP_MAGIC BIT(31)
+#define LPP_PID_MASK _AC(0xffffffff, UL)
+
+/* Offsets to entry points in kernel/head.S */
+
+#define STARTUP_NORMAL_OFFSET 0x10000
+#define STARTUP_KDUMP_OFFSET 0x10010
+
+#define LEGACY_COMMAND_LINE_SIZE 896
+
+#ifndef __ASSEMBLY__
+
+#include <asm/lowcore.h>
+#include <asm/types.h>
+
+struct parmarea {
+ unsigned long ipl_device; /* 0x10400 */
+ unsigned long initrd_start; /* 0x10408 */
+ unsigned long initrd_size; /* 0x10410 */
+ unsigned long oldmem_base; /* 0x10418 */
+ unsigned long oldmem_size; /* 0x10420 */
+ unsigned long kernel_version; /* 0x10428 */
+ unsigned long max_command_line_size; /* 0x10430 */
+ char pad1[0x10480-0x10438]; /* 0x10438 - 0x10480 */
+ char command_line[COMMAND_LINE_SIZE]; /* 0x10480 */
+};
+
+extern struct parmarea parmarea;
+
+extern unsigned int zlib_dfltcc_support;
+#define ZLIB_DFLTCC_DISABLED 0
+#define ZLIB_DFLTCC_FULL 1
+#define ZLIB_DFLTCC_DEFLATE_ONLY 2
+#define ZLIB_DFLTCC_INFLATE_ONLY 3
+#define ZLIB_DFLTCC_FULL_DEBUG 4
+
+extern unsigned long ident_map_size;
+extern unsigned long max_mappable;
+
+/* The Write Back bit position in the physaddr is given by the SLPC PCI */
+extern unsigned long mio_wb_bit_mask;
+
+#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
+#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
+#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
+
+#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
+#define MACHINE_HAS_ESOP (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP)
+#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
+#define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1)
+#define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2)
+#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
+#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
+#define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC)
+#define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX)
+#define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST)
+#define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX)
+#define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS)
+#define MACHINE_HAS_SCC (S390_lowcore.machine_flags & MACHINE_FLAG_SCC)
+#define MACHINE_HAS_PCI_MIO (S390_lowcore.machine_flags & MACHINE_FLAG_PCI_MIO)
+#define MACHINE_HAS_RDP (S390_lowcore.machine_flags & MACHINE_FLAG_RDP)
+
+/*
+ * Console mode. Override with conmode=
+ */
+extern unsigned int console_mode;
+extern unsigned int console_devno;
+extern unsigned int console_irq;
+
+#define CONSOLE_IS_UNDEFINED (console_mode == 0)
+#define CONSOLE_IS_SCLP (console_mode == 1)
+#define CONSOLE_IS_3215 (console_mode == 2)
+#define CONSOLE_IS_3270 (console_mode == 3)
+#define CONSOLE_IS_VT220 (console_mode == 4)
+#define CONSOLE_IS_HVC (console_mode == 5)
+#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
+#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
+#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
+#define SET_CONSOLE_VT220 do { console_mode = 4; } while (0)
+#define SET_CONSOLE_HVC do { console_mode = 5; } while (0)
+
+#ifdef CONFIG_VMCP
+void vmcp_cma_reserve(void);
+#else
+static inline void vmcp_cma_reserve(void) { }
+#endif
+
+void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault);
+
+void cmma_init(void);
+void cmma_init_nodat(void);
+
+extern void (*_machine_restart)(char *command);
+extern void (*_machine_halt)(void);
+extern void (*_machine_power_off)(void);
+
+extern unsigned long __kaslr_offset;
+static inline unsigned long kaslr_offset(void)
+{
+ return __kaslr_offset;
+}
+
+extern int __kaslr_enabled;
+static inline int kaslr_enabled(void)
+{
+ if (IS_ENABLED(CONFIG_RANDOMIZE_BASE))
+ return __kaslr_enabled;
+ return 0;
+}
+
+struct oldmem_data {
+ unsigned long start;
+ unsigned long size;
+};
+extern struct oldmem_data oldmem_data;
+
+static __always_inline u32 gen_lpswe(unsigned long addr)
+{
+ BUILD_BUG_ON(addr > 0xfff);
+ return 0xb2b20000 | addr;
+}
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_S390_SETUP_H */