Add os/os-linux-syscall.h to separate syscall NR from arch headers

[fio.git] / arch / arch-x86_64.h

diff --git a/arch/arch-x86_64.h b/arch/arch-x86_64.h
index c8c3d18251caf721fe25bef5c85b6c765d675ee3..e686d109e762998fbbfbf2c40d8d857ee2ce47ad 100644 (file)
--- a/arch/arch-x86_64.h
+++ b/arch/arch-x86_64.h
@@ -1,72 +1,71 @@
-#ifndef ARCH_X86_64_h
-#define ARCH_X86_64_h
+#ifndef ARCH_X86_64_H
+#define ARCH_X86_64_H
 
-#define ARCH   (arch_x86_64)
-
-#ifndef __NR_ioprio_set
-#define __NR_ioprio_set                251
-#define __NR_ioprio_get                252
-#endif
-
-#ifndef __NR_fadvise64
-#define __NR_fadvise64         221
-#endif
+static inline void do_cpuid(unsigned int *eax, unsigned int *ebx,
+                           unsigned int *ecx, unsigned int *edx)
+{
+       asm volatile("cpuid"
+               : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
+               : "0" (*eax), "2" (*ecx)
+               : "memory");
+}
 
-#ifndef __NR_sys_splice
-#define __NR_sys_splice                275
-#define __NR_sys_tee           276
-#define __NR_sys_vmsplice      278
-#endif
+#include "arch-x86-common.h"
 
-#ifndef __NR_async_exec
-#define __NR_async_exec                286
-#define __NR_async_wait                287
-#define __NR_umem_add          288
-#define __NR_async_thread      289
-#endif
+#define FIO_ARCH       (arch_x86_64)
 
 #define        FIO_HUGE_PAGE           2097152
 
-#define FIO_HAVE_SYSLET
-
 #define nop            __asm__ __volatile__("rep;nop": : :"memory")
 #define read_barrier() __asm__ __volatile__("lfence":::"memory")
 #define write_barrier()        __asm__ __volatile__("sfence":::"memory")
 
-static inline unsigned int arch_ffz(unsigned int bitmask)
+static inline unsigned long arch_ffz(unsigned long bitmask)
 {
-       __asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask));
+       __asm__("bsf %1,%0" :"=r" (bitmask) :"r" (~bitmask));
        return bitmask;
 }
+
+static inline unsigned long long get_cpu_clock(void)
+{
+       unsigned int lo, hi;
+
+       __asm__ __volatile__("rdtsc" : "=a" (lo), "=d" (hi));
+       return ((unsigned long long) hi << 32ULL) | lo;
+}
+
 #define ARCH_HAVE_FFZ
+#define ARCH_HAVE_SSE4_2
+#define ARCH_HAVE_CPU_CLOCK
 
-typedef struct {
-       unsigned int lock;
-} spinlock_t;
+#define RDRAND_LONG    ".byte 0x48,0x0f,0xc7,0xf0"
+#define RDSEED_LONG    ".byte 0x48,0x0f,0xc7,0xf8"
+#define RDRAND_RETRY   100
 
-static inline void spin_lock(spinlock_t *lock)
+static inline int arch_rand_long(unsigned long *val)
 {
-       short inc = 0x0100;
-
-       __asm__ __volatile__("xaddw %w0, %1\n"
-                       "1:\t"
-                       "cmpb %h0, %b0\n\t"
-                       "je 2f\n\t"
-                       "rep ; nop\n\t"
-                       "movb %1, %b0\n\t"
-                       "jmp 1b\n"
-                       "2:"
-                       : "+Q" (inc), "+m" (lock->lock)
-                       :
-                       : "memory", "cc");
+       int ok;
+
+       asm volatile("1: " RDRAND_LONG "\n\t"
+                    "jc 2f\n\t"
+                    "decl %0\n\t"
+                    "jnz 1b\n\t"
+                    "2:"
+                    : "=r" (ok), "=a" (*val)
+                    : "0" (RDRAND_RETRY));
+
+       return ok;
 }
 
-static inline void spin_unlock(spinlock_t *lock)
+static inline int arch_rand_seed(unsigned long *seed)
 {
-       __asm__ __volatile__("incb %0"
-                       : "+m" (lock->lock)
-                       :
-                       : "memory", "cc");
+       unsigned char ok;
+
+       asm volatile(RDSEED_LONG "\n\t"
+                       "setc %0"
+                       : "=qm" (ok), "=a" (*seed));
+
+       return 0;
 }
 
 #endif