aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/include/asm/io_32.h
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2010-02-28 19:23:06 -0800
committerDavid S. Miller <davem@davemloft.net>2010-02-28 19:23:06 -0800
commit47871889c601d8199c51a4086f77eebd77c29b0b (patch)
tree40cdcac3bff0ee40cc33dcca61d0577cdf965f77 /arch/x86/include/asm/io_32.h
parentc16cc0b464b8876cfd57ce1c1dbcb6f9a6a0bce3 (diff)
parent30ff056c42c665b9ea535d8515890857ae382540 (diff)
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts: drivers/firmware/iscsi_ibft.c
Diffstat (limited to 'arch/x86/include/asm/io_32.h')
-rw-r--r--arch/x86/include/asm/io_32.h196
1 files changed, 0 insertions, 196 deletions
diff --git a/arch/x86/include/asm/io_32.h b/arch/x86/include/asm/io_32.h
deleted file mode 100644
index a299900f592..00000000000
--- a/arch/x86/include/asm/io_32.h
+++ /dev/null
@@ -1,196 +0,0 @@
-#ifndef _ASM_X86_IO_32_H
-#define _ASM_X86_IO_32_H
-
-#include <linux/string.h>
-#include <linux/compiler.h>
-
-/*
- * This file contains the definitions for the x86 IO instructions
- * inb/inw/inl/outb/outw/outl and the "string versions" of the same
- * (insb/insw/insl/outsb/outsw/outsl). You can also use "pausing"
- * versions of the single-IO instructions (inb_p/inw_p/..).
- *
- * This file is not meant to be obfuscating: it's just complicated
- * to (a) handle it all in a way that makes gcc able to optimize it
- * as well as possible and (b) trying to avoid writing the same thing
- * over and over again with slight variations and possibly making a
- * mistake somewhere.
- */
-
-/*
- * 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
- */
-
- /*
- * Bit simplified and optimized by Jan Hubicka
- * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999.
- *
- * isa_memset_io, isa_memcpy_fromio, isa_memcpy_toio added,
- * isa_read[wl] and isa_write[wl] fixed
- * - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- */
-
-#define XQUAD_PORTIO_BASE 0xfe400000
-#define XQUAD_PORTIO_QUAD 0x40000 /* 256k per quad. */
-
-#ifdef __KERNEL__
-
-#include <asm-generic/iomap.h>
-
-#include <linux/vmalloc.h>
-
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p) p
-
-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, (const void __force *)src, count);
-}
-
-static inline void
-memcpy_toio(volatile void __iomem *dst, const void *src, int count)
-{
- __memcpy((void __force *)dst, src, count);
-}
-
-/*
- * ISA space is 'always mapped' on a typical x86 system, no need to
- * explicitly ioremap() it. The fact that the ISA IO space is mapped
- * to PAGE_OFFSET is pure coincidence - it does not mean ISA values
- * are physical addresses. The following constant pointer can be
- * used as the IO-area pointer (it can be iounmapped as well, so the
- * analogy with PCI is quite large):
- */
-#define __ISA_IO_base ((char __iomem *)(PAGE_OFFSET))
-
-/*
- * Cache management
- *
- * This needed for two cases
- * 1. Out of order aware processors
- * 2. Accidentally out of order processors (PPro errata #51)
- */
-
-#if defined(CONFIG_X86_OOSTORE) || defined(CONFIG_X86_PPRO_FENCE)
-
-static inline void flush_write_buffers(void)
-{
- asm volatile("lock; addl $0,0(%%esp)": : :"memory");
-}
-
-#else
-
-#define flush_write_buffers() do { } while (0)
-
-#endif
-
-#endif /* __KERNEL__ */
-
-extern void native_io_delay(void);
-
-extern int io_delay_type;
-extern void io_delay_init(void);
-
-#if defined(CONFIG_PARAVIRT)
-#include <asm/paravirt.h>
-#else
-
-static inline void slow_down_io(void)
-{
- native_io_delay();
-#ifdef REALLY_SLOW_IO
- native_io_delay();
- native_io_delay();
- native_io_delay();
-#endif
-}
-
-#endif
-
-#define __BUILDIO(bwl, bw, type) \
-static inline void out##bwl(unsigned type value, int port) \
-{ \
- out##bwl##_local(value, port); \
-} \
- \
-static inline unsigned type in##bwl(int port) \
-{ \
- return in##bwl##_local(port); \
-}
-
-#define BUILDIO(bwl, bw, type) \
-static inline void out##bwl##_local(unsigned type value, int port) \
-{ \
- asm volatile("out" #bwl " %" #bw "0, %w1" \
- : : "a"(value), "Nd"(port)); \
-} \
- \
-static inline unsigned type in##bwl##_local(int port) \
-{ \
- unsigned type value; \
- asm volatile("in" #bwl " %w1, %" #bw "0" \
- : "=a"(value) : "Nd"(port)); \
- return value; \
-} \
- \
-static inline void out##bwl##_local_p(unsigned type value, int port) \
-{ \
- out##bwl##_local(value, port); \
- slow_down_io(); \
-} \
- \
-static inline unsigned type in##bwl##_local_p(int port) \
-{ \
- unsigned type value = in##bwl##_local(port); \
- slow_down_io(); \
- return value; \
-} \
- \
-__BUILDIO(bwl, bw, type) \
- \
-static inline void out##bwl##_p(unsigned type value, int port) \
-{ \
- out##bwl(value, port); \
- slow_down_io(); \
-} \
- \
-static inline unsigned type in##bwl##_p(int port) \
-{ \
- unsigned type value = in##bwl(port); \
- slow_down_io(); \
- return value; \
-} \
- \
-static inline void outs##bwl(int port, const void *addr, unsigned long count) \
-{ \
- asm volatile("rep; outs" #bwl \
- : "+S"(addr), "+c"(count) : "d"(port)); \
-} \
- \
-static inline void ins##bwl(int port, void *addr, unsigned long count) \
-{ \
- asm volatile("rep; ins" #bwl \
- : "+D"(addr), "+c"(count) : "d"(port)); \
-}
-
-BUILDIO(b, b, char)
-BUILDIO(w, w, short)
-BUILDIO(l, , int)
-
-#endif /* _ASM_X86_IO_32_H */