#ifndef _ASM_X86_IO_64_H
#define _ASM_X86_IO_64_H
+#include <linux/string.h>
+#include <linux/compiler.h>
/*
* This file contains the definitions for the x86 IO instructions
* - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
*/
-extern void native_io_delay(void);
-
-extern int io_delay_type;
-extern void io_delay_init(void);
+#ifdef __KERNEL__
-#if defined(CONFIG_PARAVIRT)
-#include <asm/paravirt.h>
-#else
+#include <asm-generic/iomap.h>
-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
+#include <linux/vmalloc.h>
/*
- * Talk about misusing macros..
+ * Convert a virtual cached pointer to an uncached pointer
*/
-#define __OUT1(s, x) \
-static inline void out##s(unsigned x value, unsigned short port) {
-
-#define __OUT2(s, s1, s2) \
-asm volatile ("out" #s " %" s1 "0,%" s2 "1"
-
-#ifndef REALLY_SLOW_IO
-#define REALLY_SLOW_IO
-#define UNSET_REALLY_SLOW_IO
-#endif
-
-#define __OUT(s, s1, x) \
- __OUT1(s, x) __OUT2(s, s1, "w") : : "a" (value), "Nd" (port)); \
- } \
- __OUT1(s##_p, x) __OUT2(s, s1, "w") : : "a" (value), "Nd" (port)); \
- slow_down_io(); \
-}
-
-#define __IN1(s) \
-static inline RETURN_TYPE in##s(unsigned short port) \
-{ \
- RETURN_TYPE _v;
-
-#define __IN2(s, s1, s2) \
- asm volatile ("in" #s " %" s2 "1,%" s1 "0"
-
-#define __IN(s, s1, i...) \
- __IN1(s) __IN2(s, s1, "w") : "=a" (_v) : "Nd" (port), ##i); \
- return _v; \
- } \
- __IN1(s##_p) __IN2(s, s1, "w") : "=a" (_v) : "Nd" (port), ##i); \
- slow_down_io(); \
- return _v; }
-
-#ifdef UNSET_REALLY_SLOW_IO
-#undef REALLY_SLOW_IO
-#endif
-
-#define __INS(s) \
-static inline void ins##s(unsigned short port, void *addr, \
- unsigned long count) \
-{ \
- asm volatile ("rep ; ins" #s \
- : "=D" (addr), "=c" (count) \
- : "d" (port), "0" (addr), "1" (count)); \
-}
+#define xlate_dev_kmem_ptr(p) p
-#define __OUTS(s) \
-static inline void outs##s(unsigned short port, const void *addr, \
- unsigned long count) \
-{ \
- asm volatile ("rep ; outs" #s \
- : "=S" (addr), "=c" (count) \
- : "d" (port), "0" (addr), "1" (count)); \
+static inline void
+memset_io(volatile void __iomem *addr, unsigned char val, size_t count)
+{
+ memset((void __force *)addr, val, count);
}
-#define RETURN_TYPE unsigned char
-__IN(b, "")
-#undef RETURN_TYPE
-#define RETURN_TYPE unsigned short
-__IN(w, "")
-#undef RETURN_TYPE
-#define RETURN_TYPE unsigned int
-__IN(l, "")
-#undef RETURN_TYPE
-
-__OUT(b, "b", char)
-__OUT(w, "w", short)
-__OUT(l, , int)
-
-__INS(b)
-__INS(w)
-__INS(l)
-
-__OUTS(b)
-__OUTS(w)
-__OUTS(l)
-
-#if defined(__KERNEL__) && defined(__x86_64__)
-
-#include <linux/vmalloc.h>
-
-#include <asm-generic/iomap.h>
-
-void __memcpy_fromio(void *, unsigned long, unsigned);
-void __memcpy_toio(unsigned long, const void *, unsigned);
-
-static inline void memcpy_fromio(void *to, const volatile void __iomem *from,
- unsigned len)
+static inline void
+memcpy_fromio(void *dst, const volatile void __iomem *src, size_t count)
{
- __memcpy_fromio(to, (unsigned long)from, len);
+ memcpy(dst, (const void __force *)src, count);
}
-static inline void memcpy_toio(volatile void __iomem *to, const void *from,
- unsigned len)
+static inline void
+memcpy_toio(volatile void __iomem *dst, const void *src, size_t count)
{
- __memcpy_toio((unsigned long)to, from, len);
+ memcpy((void __force *)dst, src, count);
}
-void memset_io(volatile void __iomem *a, int b, size_t c);
-
/*
* 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
*/
#define __ISA_IO_base ((char __iomem *)(PAGE_OFFSET))
-#define flush_write_buffers()
-
/*
- * Convert a virtual cached pointer to an uncached pointer
+ * Cache management
+ *
+ * This needed for two cases
+ * 1. Out of order aware processors
+ * 2. Accidentally out of order processors (PPro errata #51)
*/
-#define xlate_dev_kmem_ptr(p) p
+
+static inline void flush_write_buffers(void)
+{
+#if defined(CONFIG_X86_OOSTORE) || defined(CONFIG_X86_PPRO_FENCE)
+ asm volatile("lock; addl $0,0(%%esp)": : :"memory");
+#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) \
+{ \
+ asm volatile("out" #bwl " %" #bw "0, %w1" \
+ : : "a"(value), "Nd"(port)); \
+} \
+ \
+static inline unsigned type in##bwl(int port) \
+{ \
+ unsigned type value; \
+ asm volatile("in" #bwl " %w1, %" #bw "0" \
+ : "=a"(value) : "Nd"(port)); \
+ return value; \
+} \
+ \
+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_64_H */
git.openpandora.org / pandora-kernel.git / blobdiff