Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

11 files changed, 581 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-generic/cpu-feature-overrides.h b/arch/mips/include/asm/mach-generic/cpu-feature-overrides.h
new file mode 100644
index 000000000..42be9e9ce
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/cpu-feature-overrides.h
@@ -0,0 +1,13 @@
+/*
+ * 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) 2003 Ralf Baechle
+ */
+#ifndef __ASM_MACH_GENERIC_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_GENERIC_CPU_FEATURE_OVERRIDES_H
+
+/* Intentionally empty file ...	 */
+
+#endif /* __ASM_MACH_GENERIC_CPU_FEATURE_OVERRIDES_H */
diff --git a/arch/mips/include/asm/mach-generic/floppy.h b/arch/mips/include/asm/mach-generic/floppy.h
new file mode 100644
index 000000000..e0c9cd41f
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/floppy.h
@@ -0,0 +1,133 @@
+/*
+ * 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) 1996, 1997, 1998, 2003 by Ralf Baechle
+ */
+#ifndef __ASM_MACH_GENERIC_FLOPPY_H
+#define __ASM_MACH_GENERIC_FLOPPY_H
+
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/linkage.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+
+#include <asm/bootinfo.h>
+#include <asm/cachectl.h>
+#include <asm/dma.h>
+#include <asm/floppy.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+/*
+ * How to access the FDC's registers.
+ */
+static inline unsigned char fd_inb(unsigned int base, unsigned int reg)
+{
+	return inb_p(base + reg);
+}
+
+static inline void fd_outb(unsigned char value, unsigned int base, unsigned int reg)
+{
+	outb_p(value, base + reg);
+}
+
+/*
+ * How to access the floppy DMA functions.
+ */
+static inline void fd_enable_dma(void)
+{
+	enable_dma(FLOPPY_DMA);
+}
+
+static inline void fd_disable_dma(void)
+{
+	disable_dma(FLOPPY_DMA);
+}
+
+static inline int fd_request_dma(void)
+{
+	return request_dma(FLOPPY_DMA, "floppy");
+}
+
+static inline void fd_free_dma(void)
+{
+	free_dma(FLOPPY_DMA);
+}
+
+static inline void fd_clear_dma_ff(void)
+{
+	clear_dma_ff(FLOPPY_DMA);
+}
+
+static inline void fd_set_dma_mode(char mode)
+{
+	set_dma_mode(FLOPPY_DMA, mode);
+}
+
+static inline void fd_set_dma_addr(char *addr)
+{
+	set_dma_addr(FLOPPY_DMA, (unsigned long) addr);
+}
+
+static inline void fd_set_dma_count(unsigned int count)
+{
+	set_dma_count(FLOPPY_DMA, count);
+}
+
+static inline int fd_get_dma_residue(void)
+{
+	return get_dma_residue(FLOPPY_DMA);
+}
+
+static inline void fd_enable_irq(void)
+{
+	enable_irq(FLOPPY_IRQ);
+}
+
+static inline void fd_disable_irq(void)
+{
+	disable_irq(FLOPPY_IRQ);
+}
+
+static inline int fd_request_irq(void)
+{
+	return request_irq(FLOPPY_IRQ, floppy_interrupt,
+			   0, "floppy", NULL);
+}
+
+static inline void fd_free_irq(void)
+{
+	free_irq(FLOPPY_IRQ, NULL);
+}
+
+#define fd_free_irq()		free_irq(FLOPPY_IRQ, NULL);
+
+
+static inline unsigned long fd_getfdaddr1(void)
+{
+	return 0x3f0;
+}
+
+static inline unsigned long fd_dma_mem_alloc(unsigned long size)
+{
+	return __get_dma_pages(GFP_KERNEL, get_order(size));
+}
+
+static inline void fd_dma_mem_free(unsigned long addr, unsigned long size)
+{
+	free_pages(addr, get_order(size));
+}
+
+static inline unsigned long fd_drive_type(unsigned long n)
+{
+	if (n == 0)
+		return 4;	/* 3,5", 1.44mb */
+
+	return 0;
+}
+
+#endif /* __ASM_MACH_GENERIC_FLOPPY_H */
diff --git a/arch/mips/include/asm/mach-generic/ide.h b/arch/mips/include/asm/mach-generic/ide.h
new file mode 100644
index 000000000..4ae5fbcb1
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/ide.h
@@ -0,0 +1,138 @@
+/*
+ * 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) 1994-1996  Linus Torvalds & authors
+ *
+ * Copied from i386; many of the especially older MIPS or ISA-based platforms
+ * are basically identical.  Using this file probably implies i8259 PIC
+ * support in a system but the very least interrupt numbers 0 - 15 need to
+ * be put aside for legacy devices.
+ */
+#ifndef __ASM_MACH_GENERIC_IDE_H
+#define __ASM_MACH_GENERIC_IDE_H
+
+#ifdef __KERNEL__
+
+#include <linux/pci.h>
+#include <linux/stddef.h>
+#include <asm/processor.h>
+
+/* MIPS port and memory-mapped I/O string operations.  */
+static inline void __ide_flush_prologue(void)
+{
+#ifdef CONFIG_SMP
+	if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc)
+		preempt_disable();
+#endif
+}
+
+static inline void __ide_flush_epilogue(void)
+{
+#ifdef CONFIG_SMP
+	if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc)
+		preempt_enable();
+#endif
+}
+
+static inline void __ide_flush_dcache_range(unsigned long addr, unsigned long size)
+{
+	if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) {
+		unsigned long end = addr + size;
+
+		while (addr < end) {
+			local_flush_data_cache_page((void *)addr);
+			addr += PAGE_SIZE;
+		}
+	}
+}
+
+/*
+ * insw() and gang might be called with interrupts disabled, so we can't
+ * send IPIs for flushing due to the potencial of deadlocks, see the comment
+ * above smp_call_function() in arch/mips/kernel/smp.c.	 We work around the
+ * problem by disabling preemption so we know we actually perform the flush
+ * on the processor that actually has the lines to be flushed which hopefully
+ * is even better for performance anyway.
+ */
+static inline void __ide_insw(unsigned long port, void *addr,
+	unsigned int count)
+{
+	__ide_flush_prologue();
+	insw(port, addr, count);
+	__ide_flush_dcache_range((unsigned long)addr, count * 2);
+	__ide_flush_epilogue();
+}
+
+static inline void __ide_insl(unsigned long port, void *addr, unsigned int count)
+{
+	__ide_flush_prologue();
+	insl(port, addr, count);
+	__ide_flush_dcache_range((unsigned long)addr, count * 4);
+	__ide_flush_epilogue();
+}
+
+static inline void __ide_outsw(unsigned long port, const void *addr,
+	unsigned long count)
+{
+	__ide_flush_prologue();
+	outsw(port, addr, count);
+	__ide_flush_dcache_range((unsigned long)addr, count * 2);
+	__ide_flush_epilogue();
+}
+
+static inline void __ide_outsl(unsigned long port, const void *addr,
+	unsigned long count)
+{
+	__ide_flush_prologue();
+	outsl(port, addr, count);
+	__ide_flush_dcache_range((unsigned long)addr, count * 4);
+	__ide_flush_epilogue();
+}
+
+static inline void __ide_mm_insw(void __iomem *port, void *addr, u32 count)
+{
+	__ide_flush_prologue();
+	readsw(port, addr, count);
+	__ide_flush_dcache_range((unsigned long)addr, count * 2);
+	__ide_flush_epilogue();
+}
+
+static inline void __ide_mm_insl(void __iomem *port, void *addr, u32 count)
+{
+	__ide_flush_prologue();
+	readsl(port, addr, count);
+	__ide_flush_dcache_range((unsigned long)addr, count * 4);
+	__ide_flush_epilogue();
+}
+
+static inline void __ide_mm_outsw(void __iomem *port, void *addr, u32 count)
+{
+	__ide_flush_prologue();
+	writesw(port, addr, count);
+	__ide_flush_dcache_range((unsigned long)addr, count * 2);
+	__ide_flush_epilogue();
+}
+
+static inline void __ide_mm_outsl(void __iomem * port, void *addr, u32 count)
+{
+	__ide_flush_prologue();
+	writesl(port, addr, count);
+	__ide_flush_dcache_range((unsigned long)addr, count * 4);
+	__ide_flush_epilogue();
+}
+
+/* ide_insw calls insw, not __ide_insw.	 Why? */
+#undef insw
+#undef insl
+#undef outsw
+#undef outsl
+#define insw(port, addr, count) __ide_insw(port, addr, count)
+#define insl(port, addr, count) __ide_insl(port, addr, count)
+#define outsw(port, addr, count) __ide_outsw(port, addr, count)
+#define outsl(port, addr, count) __ide_outsl(port, addr, count)
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_MACH_GENERIC_IDE_H */
diff --git a/arch/mips/include/asm/mach-generic/ioremap.h b/arch/mips/include/asm/mach-generic/ioremap.h
new file mode 100644
index 000000000..f2442b845
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/ioremap.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *	include/asm-mips/mach-generic/ioremap.h
+ */
+#ifndef __ASM_MACH_GENERIC_IOREMAP_H
+#define __ASM_MACH_GENERIC_IOREMAP_H
+
+#include <linux/types.h>
+
+static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
+	unsigned long flags)
+{
+	return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+	return 0;
+}
+
+#endif /* __ASM_MACH_GENERIC_IOREMAP_H */
diff --git a/arch/mips/include/asm/mach-generic/irq.h b/arch/mips/include/asm/mach-generic/irq.h
new file mode 100644
index 000000000..079889ced
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/irq.h
@@ -0,0 +1,39 @@
+/*
+ * 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) 2003 by Ralf Baechle
+ */
+#ifndef __ASM_MACH_GENERIC_IRQ_H
+#define __ASM_MACH_GENERIC_IRQ_H
+
+#ifndef NR_IRQS
+#define NR_IRQS 256
+#endif
+
+#ifdef CONFIG_I8259
+#ifndef I8259A_IRQ_BASE
+#define I8259A_IRQ_BASE 0
+#endif
+#endif
+
+#ifdef CONFIG_IRQ_MIPS_CPU
+
+#ifndef MIPS_CPU_IRQ_BASE
+#ifdef CONFIG_I8259
+#define MIPS_CPU_IRQ_BASE 16
+#else
+#define MIPS_CPU_IRQ_BASE 0
+#endif /* CONFIG_I8259 */
+#endif
+
+#ifdef CONFIG_IRQ_CPU_RM7K
+#ifndef RM7K_CPU_IRQ_BASE
+#define RM7K_CPU_IRQ_BASE (MIPS_CPU_IRQ_BASE+8)
+#endif
+#endif
+
+#endif /* CONFIG_IRQ_MIPS_CPU */
+
+#endif /* __ASM_MACH_GENERIC_IRQ_H */
diff --git a/arch/mips/include/asm/mach-generic/kernel-entry-init.h b/arch/mips/include/asm/mach-generic/kernel-entry-init.h
new file mode 100644
index 000000000..a229297c8
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/kernel-entry-init.h
@@ -0,0 +1,25 @@
+/*
+ * 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) 2005 Embedded Alley Solutions, Inc
+ * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
+ */
+#ifndef __ASM_MACH_GENERIC_KERNEL_ENTRY_H
+#define __ASM_MACH_GENERIC_KERNEL_ENTRY_H
+
+/* Intentionally empty macro, used in head.S. Override in
+ * arch/mips/mach-xxx/kernel-entry-init.h when necessary.
+ */
+	.macro	kernel_entry_setup
+	.endm
+
+/*
+ * Do SMP slave processor setup necessary before we can safely execute C code.
+ */
+	.macro	smp_slave_setup
+	.endm
+
+
+#endif /* __ASM_MACH_GENERIC_KERNEL_ENTRY_H */
diff --git a/arch/mips/include/asm/mach-generic/kmalloc.h b/arch/mips/include/asm/mach-generic/kmalloc.h
new file mode 100644
index 000000000..649a98338
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/kmalloc.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_MACH_GENERIC_KMALLOC_H
+#define __ASM_MACH_GENERIC_KMALLOC_H
+
+#ifdef CONFIG_DMA_NONCOHERENT
+/*
+ * Total overkill for most systems but need as a safe default.
+ * Set this one if any device in the system might do non-coherent DMA.
+ */
+#define ARCH_DMA_MINALIGN	128
+#endif
+
+#endif /* __ASM_MACH_GENERIC_KMALLOC_H */
diff --git a/arch/mips/include/asm/mach-generic/mangle-port.h b/arch/mips/include/asm/mach-generic/mangle-port.h
new file mode 100644
index 000000000..77c65c294
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/mangle-port.h
@@ -0,0 +1,52 @@
+/*
+ * 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) 2003, 2004 Ralf Baechle
+ */
+#ifndef __ASM_MACH_GENERIC_MANGLE_PORT_H
+#define __ASM_MACH_GENERIC_MANGLE_PORT_H
+
+#define __swizzle_addr_b(port)	(port)
+#define __swizzle_addr_w(port)	(port)
+#define __swizzle_addr_l(port)	(port)
+#define __swizzle_addr_q(port)	(port)
+
+/*
+ * Sane hardware offers swapping of PCI/ISA I/O space accesses in hardware;
+ * less sane hardware forces software to fiddle with this...
+ *
+ * Regardless, if the host bus endianness mismatches that of PCI/ISA, then
+ * you can't have the numerical value of data and byte addresses within
+ * multibyte quantities both preserved at the same time.  Hence two
+ * variations of functions: non-prefixed ones that preserve the value
+ * and prefixed ones that preserve byte addresses.  The latters are
+ * typically used for moving raw data between a peripheral and memory (cf.
+ * string I/O functions), hence the "__mem_" prefix.
+ */
+#if defined(CONFIG_SWAP_IO_SPACE)
+
+# define ioswabb(a, x)		(x)
+# define __mem_ioswabb(a, x)	(x)
+# define ioswabw(a, x)		le16_to_cpu((__force __le16)(x))
+# define __mem_ioswabw(a, x)	(x)
+# define ioswabl(a, x)		le32_to_cpu((__force __le32)(x))
+# define __mem_ioswabl(a, x)	(x)
+# define ioswabq(a, x)		le64_to_cpu((__force __le64)(x))
+# define __mem_ioswabq(a, x)	(x)
+
+#else
+
+# define ioswabb(a, x)		(x)
+# define __mem_ioswabb(a, x)	(x)
+# define ioswabw(a, x)		(x)
+# define __mem_ioswabw(a, x)	((__force u16)cpu_to_le16(x))
+# define ioswabl(a, x)		(x)
+# define __mem_ioswabl(a, x)	((__force u32)cpu_to_le32(x))
+# define ioswabq(a, x)		(x)
+# define __mem_ioswabq(a, x)	((__force u64)cpu_to_le64(x))
+
+#endif
+
+#endif /* __ASM_MACH_GENERIC_MANGLE_PORT_H */
diff --git a/arch/mips/include/asm/mach-generic/mc146818rtc.h b/arch/mips/include/asm/mach-generic/mc146818rtc.h
new file mode 100644
index 000000000..9c72e540f
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/mc146818rtc.h
@@ -0,0 +1,36 @@
+/*
+ * 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) 1998, 2001, 03 by Ralf Baechle
+ *
+ * RTC routines for PC style attached Dallas chip.
+ */
+#ifndef __ASM_MACH_GENERIC_MC146818RTC_H
+#define __ASM_MACH_GENERIC_MC146818RTC_H
+
+#include <asm/io.h>
+
+#define RTC_PORT(x)	(0x70 + (x))
+#define RTC_IRQ		8
+
+static inline unsigned char CMOS_READ(unsigned long addr)
+{
+	outb_p(addr, RTC_PORT(0));
+	return inb_p(RTC_PORT(1));
+}
+
+static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
+{
+	outb_p(addr, RTC_PORT(0));
+	outb_p(data, RTC_PORT(1));
+}
+
+#define RTC_ALWAYS_BCD	0
+
+#ifndef mc146818_decode_year
+#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
+#endif
+
+#endif /* __ASM_MACH_GENERIC_MC146818RTC_H */
diff --git a/arch/mips/include/asm/mach-generic/spaces.h b/arch/mips/include/asm/mach-generic/spaces.h
new file mode 100644
index 000000000..c3ac06a6a
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/spaces.h
@@ -0,0 +1,110 @@
+/*
+ * 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) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002  Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_MACH_GENERIC_SPACES_H
+#define _ASM_MACH_GENERIC_SPACES_H
+
+#include <linux/const.h>
+
+#include <asm/mipsregs.h>
+
+#ifndef IO_SPACE_LIMIT
+#define IO_SPACE_LIMIT 0xffff
+#endif
+
+/*
+ * This gives the physical RAM offset.
+ */
+#ifndef __ASSEMBLY__
+# if defined(CONFIG_MIPS_AUTO_PFN_OFFSET)
+#  define PHYS_OFFSET		((unsigned long)PFN_PHYS(ARCH_PFN_OFFSET))
+# elif !defined(PHYS_OFFSET)
+#  define PHYS_OFFSET		_AC(0, UL)
+# endif
+#endif /* __ASSEMBLY__ */
+
+#ifdef CONFIG_32BIT
+#ifdef CONFIG_KVM_GUEST
+#define CAC_BASE		_AC(0x40000000, UL)
+#else
+#define CAC_BASE		_AC(0x80000000, UL)
+#endif
+#ifndef IO_BASE
+#define IO_BASE			_AC(0xa0000000, UL)
+#endif
+#ifndef UNCAC_BASE
+#define UNCAC_BASE		_AC(0xa0000000, UL)
+#endif
+
+#ifndef MAP_BASE
+#ifdef CONFIG_KVM_GUEST
+#define MAP_BASE		_AC(0x60000000, UL)
+#else
+#define MAP_BASE		_AC(0xc0000000, UL)
+#endif
+#endif
+
+/*
+ * Memory above this physical address will be considered highmem.
+ */
+#ifndef HIGHMEM_START
+#define HIGHMEM_START		_AC(0x20000000, UL)
+#endif
+
+#endif /* CONFIG_32BIT */
+
+#ifdef CONFIG_64BIT
+
+#ifndef CAC_BASE
+#define CAC_BASE	PHYS_TO_XKPHYS(read_c0_config() & CONF_CM_CMASK, 0)
+#endif
+
+#ifndef IO_BASE
+#define IO_BASE			_AC(0x9000000000000000, UL)
+#endif
+
+#ifndef UNCAC_BASE
+#define UNCAC_BASE		_AC(0x9000000000000000, UL)
+#endif
+
+#ifndef MAP_BASE
+#define MAP_BASE		_AC(0xc000000000000000, UL)
+#endif
+
+/*
+ * Memory above this physical address will be considered highmem.
+ * Fixme: 59 bits is a fictive number and makes assumptions about processors
+ * in the distant future.  Nobody will care for a few years :-)
+ */
+#ifndef HIGHMEM_START
+#define HIGHMEM_START		(_AC(1, UL) << _AC(59, UL))
+#endif
+
+#define TO_PHYS(x)		(	      ((x) & TO_PHYS_MASK))
+#define TO_CAC(x)		(CAC_BASE   | ((x) & TO_PHYS_MASK))
+#define TO_UNCAC(x)		(UNCAC_BASE | ((x) & TO_PHYS_MASK))
+
+#endif /* CONFIG_64BIT */
+
+/*
+ * This handles the memory map.
+ */
+#ifndef PAGE_OFFSET
+#define PAGE_OFFSET		(CAC_BASE + PHYS_OFFSET)
+#endif
+
+#ifndef FIXADDR_TOP
+#ifdef CONFIG_KVM_GUEST
+#define FIXADDR_TOP		((unsigned long)(long)(int)0x7ffe0000)
+#else
+#define FIXADDR_TOP		((unsigned long)(long)(int)0xfffe0000)
+#endif
+#endif
+
+#endif /* __ASM_MACH_GENERIC_SPACES_H */
diff --git a/arch/mips/include/asm/mach-generic/topology.h b/arch/mips/include/asm/mach-generic/topology.h
new file mode 100644
index 000000000..5428f333a
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/topology.h
@@ -0,0 +1 @@
+#include <asm-generic/topology.h>