Merge branch 'linus' into x86/memory-corruption-check

1 files changed, 0 insertions, 589 deletions

diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
deleted file mode 100644
index 501a40b9f18d..000000000000
--- a/include/asm-mips/io.h
+++ /dev/null
@@ -1,589 +0,0 @@
-/*
- * 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, 1995 Waldorf GmbH
- * Copyright (C) 1994 - 2000, 06 Ralf Baechle
- * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
- * Copyright (C) 2004, 2005  MIPS Technologies, Inc.  All rights reserved.
- *	Author:	Maciej W. Rozycki <macro@mips.com>
- */
-#ifndef _ASM_IO_H
-#define _ASM_IO_H
-
-#include <linux/compiler.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-
-#include <asm/addrspace.h>
-#include <asm/byteorder.h>
-#include <asm/cpu.h>
-#include <asm/cpu-features.h>
-#include <asm-generic/iomap.h>
-#include <asm/page.h>
-#include <asm/pgtable-bits.h>
-#include <asm/processor.h>
-#include <asm/string.h>
-
-#include <ioremap.h>
-#include <mangle-port.h>
-
-/*
- * Slowdown I/O port space accesses for antique hardware.
- */
-#undef CONF_SLOWDOWN_IO
-
-/*
- * Raw operations are never swapped in software.  OTOH values that raw
- * operations are working on may or may not have been swapped by the bus
- * hardware.  An example use would be for flash memory that's used for
- * execute in place.
- */
-# define __raw_ioswabb(a, x)	(x)
-# define __raw_ioswabw(a, x)	(x)
-# define __raw_ioswabl(a, x)	(x)
-# define __raw_ioswabq(a, x)	(x)
-# define ____raw_ioswabq(a, x)	(x)
-
-/* ioswab[bwlq], __mem_ioswab[bwlq] are defined in mangle-port.h */
-
-#define IO_SPACE_LIMIT 0xffff
-
-/*
- * On MIPS I/O ports are memory mapped, so we access them using normal
- * load/store instructions. mips_io_port_base is the virtual address to
- * which all ports are being mapped.  For sake of efficiency some code
- * assumes that this is an address that can be loaded with a single lui
- * instruction, so the lower 16 bits must be zero.  Should be true on
- * on any sane architecture; generic code does not use this assumption.
- */
-extern const unsigned long mips_io_port_base;
-
-/*
- * Gcc will generate code to load the value of mips_io_port_base after each
- * function call which may be fairly wasteful in some cases.  So we don't
- * play quite by the book.  We tell gcc mips_io_port_base is a long variable
- * which solves the code generation issue.  Now we need to violate the
- * aliasing rules a little to make initialization possible and finally we
- * will need the barrier() to fight side effects of the aliasing chat.
- * This trickery will eventually collapse under gcc's optimizer.  Oh well.
- */
-static inline void set_io_port_base(unsigned long base)
-{
-	* (unsigned long *) &mips_io_port_base = base;
-	barrier();
-}
-
-/*
- * Thanks to James van Artsdalen for a better timing-fix than
- * the two short jumps: using outb's to a nonexistent port seems
- * to guarantee better timings even on fast machines.
- *
- * On the other hand, I'd like to be sure of a non-existent port:
- * I feel a bit unsafe about using 0x80 (should be safe, though)
- *
- *		Linus
- *
- */
-
-#define __SLOW_DOWN_IO \
-	__asm__ __volatile__( \
-		"sb\t$0,0x80(%0)" \
-		: : "r" (mips_io_port_base));
-
-#ifdef CONF_SLOWDOWN_IO
-#ifdef REALLY_SLOW_IO
-#define SLOW_DOWN_IO { __SLOW_DOWN_IO; __SLOW_DOWN_IO; __SLOW_DOWN_IO; __SLOW_DOWN_IO; }
-#else
-#define SLOW_DOWN_IO __SLOW_DOWN_IO
-#endif
-#else
-#define SLOW_DOWN_IO
-#endif
-
-/*
- *     virt_to_phys    -       map virtual addresses to physical
- *     @address: address to remap
- *
- *     The returned physical address is the physical (CPU) mapping for
- *     the memory address given. It is only valid to use this function on
- *     addresses directly mapped or allocated via kmalloc.
- *
- *     This function does not give bus mappings for DMA transfers. In
- *     almost all conceivable cases a device driver should not be using
- *     this function
- */
-static inline unsigned long virt_to_phys(volatile const void *address)
-{
-	return (unsigned long)address - PAGE_OFFSET + PHYS_OFFSET;
-}
-
-/*
- *     phys_to_virt    -       map physical address to virtual
- *     @address: address to remap
- *
- *     The returned virtual address is a current CPU mapping for
- *     the memory address given. It is only valid to use this function on
- *     addresses that have a kernel mapping
- *
- *     This function does not handle bus mappings for DMA transfers. In
- *     almost all conceivable cases a device driver should not be using
- *     this function
- */
-static inline void * phys_to_virt(unsigned long address)
-{
-	return (void *)(address + PAGE_OFFSET - PHYS_OFFSET);
-}
-
-/*
- * ISA I/O bus memory addresses are 1:1 with the physical address.
- */
-static inline unsigned long isa_virt_to_bus(volatile void * address)
-{
-	return (unsigned long)address - PAGE_OFFSET;
-}
-
-static inline void * isa_bus_to_virt(unsigned long address)
-{
-	return (void *)(address + PAGE_OFFSET);
-}
-
-#define isa_page_to_bus page_to_phys
-
-/*
- * However PCI ones are not necessarily 1:1 and therefore these interfaces
- * are forbidden in portable PCI drivers.
- *
- * Allow them for x86 for legacy drivers, though.
- */
-#define virt_to_bus virt_to_phys
-#define bus_to_virt phys_to_virt
-
-/*
- * Change "struct page" to physical address.
- */
-#define page_to_phys(page)	((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
-
-extern void __iomem * __ioremap(phys_t offset, phys_t size, unsigned long flags);
-extern void __iounmap(const volatile void __iomem *addr);
-
-static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size,
-	unsigned long flags)
-{
-	void __iomem *addr = plat_ioremap(offset, size, flags);
-
-	if (addr)
-		return addr;
-
-#define __IS_LOW512(addr) (!((phys_t)(addr) & (phys_t) ~0x1fffffffULL))
-
-	if (cpu_has_64bit_addresses) {
-		u64 base = UNCAC_BASE;
-
-		/*
-		 * R10000 supports a 2 bit uncached attribute therefore
-		 * UNCAC_BASE may not equal IO_BASE.
-		 */
-		if (flags == _CACHE_UNCACHED)
-			base = (u64) IO_BASE;
-		return (void __iomem *) (unsigned long) (base + offset);
-	} else if (__builtin_constant_p(offset) &&
-		   __builtin_constant_p(size) && __builtin_constant_p(flags)) {
-		phys_t phys_addr, last_addr;
-
-		phys_addr = fixup_bigphys_addr(offset, size);
-
-		/* Don't allow wraparound or zero size. */
-		last_addr = phys_addr + size - 1;
-		if (!size || last_addr < phys_addr)
-			return NULL;
-
-		/*
-		 * Map uncached objects in the low 512MB of address
-		 * space using KSEG1.
-		 */
-		if (__IS_LOW512(phys_addr) && __IS_LOW512(last_addr) &&
-		    flags == _CACHE_UNCACHED)
-			return (void __iomem *)
-				(unsigned long)CKSEG1ADDR(phys_addr);
-	}
-
-	return __ioremap(offset, size, flags);
-
-#undef __IS_LOW512
-}
-
-/*
- * ioremap     -   map bus memory into CPU space
- * @offset:    bus address of the memory
- * @size:      size of the resource to map
- *
- * ioremap performs a platform specific sequence of operations to
- * make bus memory CPU accessible via the readb/readw/readl/writeb/
- * writew/writel functions and the other mmio helpers. The returned
- * address is not guaranteed to be usable directly as a virtual
- * address.
- */
-#define ioremap(offset, size)						\
-	__ioremap_mode((offset), (size), _CACHE_UNCACHED)
-
-/*
- * ioremap_nocache     -   map bus memory into CPU space
- * @offset:    bus address of the memory
- * @size:      size of the resource to map
- *
- * ioremap_nocache performs a platform specific sequence of operations to
- * make bus memory CPU accessible via the readb/readw/readl/writeb/
- * writew/writel functions and the other mmio helpers. The returned
- * address is not guaranteed to be usable directly as a virtual
- * address.
- *
- * This version of ioremap ensures that the memory is marked uncachable
- * on the CPU as well as honouring existing caching rules from things like
- * the PCI bus. Note that there are other caches and buffers on many
- * busses. In paticular driver authors should read up on PCI writes
- *
- * It's useful if some control registers are in such an area and
- * write combining or read caching is not desirable:
- */
-#define ioremap_nocache(offset, size)					\
-	__ioremap_mode((offset), (size), _CACHE_UNCACHED)
-
-/*
- * ioremap_cachable -   map bus memory into CPU space
- * @offset:         bus address of the memory
- * @size:           size of the resource to map
- *
- * ioremap_nocache performs a platform specific sequence of operations to
- * make bus memory CPU accessible via the readb/readw/readl/writeb/
- * writew/writel functions and the other mmio helpers. The returned
- * address is not guaranteed to be usable directly as a virtual
- * address.
- *
- * This version of ioremap ensures that the memory is marked cachable by
- * the CPU.  Also enables full write-combining.  Useful for some
- * memory-like regions on I/O busses.
- */
-#define ioremap_cachable(offset, size)					\
-	__ioremap_mode((offset), (size), _page_cachable_default)
-
-/*
- * These two are MIPS specific ioremap variant.  ioremap_cacheable_cow
- * requests a cachable mapping, ioremap_uncached_accelerated requests a
- * mapping using the uncached accelerated mode which isn't supported on
- * all processors.
- */
-#define ioremap_cacheable_cow(offset, size)				\
-	__ioremap_mode((offset), (size), _CACHE_CACHABLE_COW)
-#define ioremap_uncached_accelerated(offset, size)			\
-	__ioremap_mode((offset), (size), _CACHE_UNCACHED_ACCELERATED)
-
-static inline void iounmap(const volatile void __iomem *addr)
-{
-	if (plat_iounmap(addr))
-		return;
-
-#define __IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == CKSEG1)
-
-	if (cpu_has_64bit_addresses ||
-	    (__builtin_constant_p(addr) && __IS_KSEG1(addr)))
-		return;
-
-	__iounmap(addr);
-
-#undef __IS_KSEG1
-}
-
-#define __BUILD_MEMORY_SINGLE(pfx, bwlq, type, irq)			\
-									\
-static inline void pfx##write##bwlq(type val,				\
-				    volatile void __iomem *mem)		\
-{									\
-	volatile type *__mem;						\
-	type __val;							\
-									\
-	__mem = (void *)__swizzle_addr_##bwlq((unsigned long)(mem));	\
-									\
-	__val = pfx##ioswab##bwlq(__mem, val);				\
-									\
-	if (sizeof(type) != sizeof(u64) || sizeof(u64) == sizeof(long))	\
-		*__mem = __val;						\
-	else if (cpu_has_64bits) {					\
-		unsigned long __flags;					\
-		type __tmp;						\
-									\
-		if (irq)						\
-			local_irq_save(__flags);			\
-		__asm__ __volatile__(					\
-			".set	mips3"		"\t\t# __writeq""\n\t"	\
-			"dsll32	%L0, %L0, 0"			"\n\t"	\
-			"dsrl32	%L0, %L0, 0"			"\n\t"	\
-			"dsll32	%M0, %M0, 0"			"\n\t"	\
-			"or	%L0, %L0, %M0"			"\n\t"	\
-			"sd	%L0, %2"			"\n\t"	\
-			".set	mips0"				"\n"	\
-			: "=r" (__tmp)					\
-			: "0" (__val), "m" (*__mem));			\
-		if (irq)						\
-			local_irq_restore(__flags);			\
-	} else								\
-		BUG();							\
-}									\
-									\
-static inline type pfx##read##bwlq(const volatile void __iomem *mem)	\
-{									\
-	volatile type *__mem;						\
-	type __val;							\
-									\
-	__mem = (void *)__swizzle_addr_##bwlq((unsigned long)(mem));	\
-									\
-	if (sizeof(type) != sizeof(u64) || sizeof(u64) == sizeof(long))	\
-		__val = *__mem;						\
-	else if (cpu_has_64bits) {					\
-		unsigned long __flags;					\
-									\
-		if (irq)						\
-			local_irq_save(__flags);			\
-		__asm__ __volatile__(					\
-			".set	mips3"		"\t\t# __readq"	"\n\t"	\
-			"ld	%L0, %1"			"\n\t"	\
-			"dsra32	%M0, %L0, 0"			"\n\t"	\
-			"sll	%L0, %L0, 0"			"\n\t"	\
-			".set	mips0"				"\n"	\
-			: "=r" (__val)					\
-			: "m" (*__mem));				\
-		if (irq)						\
-			local_irq_restore(__flags);			\
-	} else {							\
-		__val = 0;						\
-		BUG();							\
-	}								\
-									\
-	return pfx##ioswab##bwlq(__mem, __val);				\
-}
-
-#define __BUILD_IOPORT_SINGLE(pfx, bwlq, type, p, slow)			\
-									\
-static inline void pfx##out##bwlq##p(type val, unsigned long port)	\
-{									\
-	volatile type *__addr;						\
-	type __val;							\
-									\
-	__addr = (void *)__swizzle_addr_##bwlq(mips_io_port_base + port); \
-									\
-	__val = pfx##ioswab##bwlq(__addr, val);				\
-									\
-	/* Really, we want this to be atomic */				\
-	BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long));		\
-									\
-	*__addr = __val;						\
-	slow;								\
-}									\
-									\
-static inline type pfx##in##bwlq##p(unsigned long port)			\
-{									\
-	volatile type *__addr;						\
-	type __val;							\
-									\
-	__addr = (void *)__swizzle_addr_##bwlq(mips_io_port_base + port); \
-									\
-	BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long));		\
-									\
-	__val = *__addr;						\
-	slow;								\
-									\
-	return pfx##ioswab##bwlq(__addr, __val);			\
-}
-
-#define __BUILD_MEMORY_PFX(bus, bwlq, type)				\
-									\
-__BUILD_MEMORY_SINGLE(bus, bwlq, type, 1)
-
-#define BUILDIO_MEM(bwlq, type)						\
-									\
-__BUILD_MEMORY_PFX(__raw_, bwlq, type)					\
-__BUILD_MEMORY_PFX(, bwlq, type)					\
-__BUILD_MEMORY_PFX(__mem_, bwlq, type)					\
-
-BUILDIO_MEM(b, u8)
-BUILDIO_MEM(w, u16)
-BUILDIO_MEM(l, u32)
-BUILDIO_MEM(q, u64)
-
-#define __BUILD_IOPORT_PFX(bus, bwlq, type)				\
-	__BUILD_IOPORT_SINGLE(bus, bwlq, type, ,)			\
-	__BUILD_IOPORT_SINGLE(bus, bwlq, type, _p, SLOW_DOWN_IO)
-
-#define BUILDIO_IOPORT(bwlq, type)					\
-	__BUILD_IOPORT_PFX(, bwlq, type)				\
-	__BUILD_IOPORT_PFX(__mem_, bwlq, type)
-
-BUILDIO_IOPORT(b, u8)
-BUILDIO_IOPORT(w, u16)
-BUILDIO_IOPORT(l, u32)
-#ifdef CONFIG_64BIT
-BUILDIO_IOPORT(q, u64)
-#endif
-
-#define __BUILDIO(bwlq, type)						\
-									\
-__BUILD_MEMORY_SINGLE(____raw_, bwlq, type, 0)
-
-__BUILDIO(q, u64)
-
-#define readb_relaxed			readb
-#define readw_relaxed			readw
-#define readl_relaxed			readl
-#define readq_relaxed			readq
-
-/*
- * Some code tests for these symbols
- */
-#define readq				readq
-#define writeq				writeq
-
-#define __BUILD_MEMORY_STRING(bwlq, type)				\
-									\
-static inline void writes##bwlq(volatile void __iomem *mem,		\
-				const void *addr, unsigned int count)	\
-{									\
-	const volatile type *__addr = addr;				\
-									\
-	while (count--) {						\
-		__mem_write##bwlq(*__addr, mem);			\
-		__addr++;						\
-	}								\
-}									\
-									\
-static inline void reads##bwlq(volatile void __iomem *mem, void *addr,	\
-			       unsigned int count)			\
-{									\
-	volatile type *__addr = addr;					\
-									\
-	while (count--) {						\
-		*__addr = __mem_read##bwlq(mem);			\
-		__addr++;						\
-	}								\
-}
-
-#define __BUILD_IOPORT_STRING(bwlq, type)				\
-									\
-static inline void outs##bwlq(unsigned long port, const void *addr,	\
-			      unsigned int count)			\
-{									\
-	const volatile type *__addr = addr;				\
-									\
-	while (count--) {						\
-		__mem_out##bwlq(*__addr, port);				\
-		__addr++;						\
-	}								\
-}									\
-									\
-static inline void ins##bwlq(unsigned long port, void *addr,		\
-			     unsigned int count)			\
-{									\
-	volatile type *__addr = addr;					\
-									\
-	while (count--) {						\
-		*__addr = __mem_in##bwlq(port);				\
-		__addr++;						\
-	}								\
-}
-
-#define BUILDSTRING(bwlq, type)						\
-									\
-__BUILD_MEMORY_STRING(bwlq, type)					\
-__BUILD_IOPORT_STRING(bwlq, type)
-
-BUILDSTRING(b, u8)
-BUILDSTRING(w, u16)
-BUILDSTRING(l, u32)
-#ifdef CONFIG_64BIT
-BUILDSTRING(q, u64)
-#endif
-
-
-/* Depends on MIPS II instruction set */
-#define mmiowb() asm volatile ("sync" ::: "memory")
-
-static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count)
-{
-	memset((void __force *) addr, val, count);
-}
-static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count)
-{
-	memcpy(dst, (void __force *) src, count);
-}
-static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count)
-{
-	memcpy((void __force *) dst, src, count);
-}
-
-/*
- * The caches on some architectures aren't dma-coherent and have need to
- * handle this in software.  There are three types of operations that
- * can be applied to dma buffers.
- *
- *  - dma_cache_wback_inv(start, size) makes caches and coherent by
- *    writing the content of the caches back to memory, if necessary.
- *    The function also invalidates the affected part of the caches as
- *    necessary before DMA transfers from outside to memory.
- *  - dma_cache_wback(start, size) makes caches and coherent by
- *    writing the content of the caches back to memory, if necessary.
- *    The function also invalidates the affected part of the caches as
- *    necessary before DMA transfers from outside to memory.
- *  - dma_cache_inv(start, size) invalidates the affected parts of the
- *    caches.  Dirty lines of the caches may be written back or simply
- *    be discarded.  This operation is necessary before dma operations
- *    to the memory.
- *
- * This API used to be exported; it now is for arch code internal use only.
- */
-#ifdef CONFIG_DMA_NONCOHERENT
-
-extern void (*_dma_cache_wback_inv)(unsigned long start, unsigned long size);
-extern void (*_dma_cache_wback)(unsigned long start, unsigned long size);
-extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);
-
-#define dma_cache_wback_inv(start, size)	_dma_cache_wback_inv(start, size)
-#define dma_cache_wback(start, size)		_dma_cache_wback(start, size)
-#define dma_cache_inv(start, size)		_dma_cache_inv(start, size)
-
-#else /* Sane hardware */
-
-#define dma_cache_wback_inv(start,size)	\
-	do { (void) (start); (void) (size); } while (0)
-#define dma_cache_wback(start,size)	\
-	do { (void) (start); (void) (size); } while (0)
-#define dma_cache_inv(start,size)	\
-	do { (void) (start); (void) (size); } while (0)
-
-#endif /* CONFIG_DMA_NONCOHERENT */
-
-/*
- * Read a 32-bit register that requires a 64-bit read cycle on the bus.
- * Avoid interrupt mucking, just adjust the address for 4-byte access.
- * Assume the addresses are 8-byte aligned.
- */
-#ifdef __MIPSEB__
-#define __CSR_32_ADJUST 4
-#else
-#define __CSR_32_ADJUST 0
-#endif
-
-#define csr_out32(v, a) (*(volatile u32 *)((unsigned long)(a) + __CSR_32_ADJUST) = (v))
-#define csr_in32(a)    (*(volatile u32 *)((unsigned long)(a) + __CSR_32_ADJUST))
-
-/*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
-#define xlate_dev_mem_ptr(p)	__va(p)
-
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
-#endif /* _ASM_IO_H */