util: Move u_atomic.h to src/util.

To be shared outside of Gallium.

Reviewed-by: Jose Fonseca <[email protected]>

1 files changed, 0 insertions, 401 deletions

diff --git a/src/gallium/auxiliary/util/u_atomic.h b/src/gallium/auxiliary/util/u_atomic.h
deleted file mode 100644
index 2500bc75249..00000000000
--- a/src/gallium/auxiliary/util/u_atomic.h
+++ /dev/null
@@ -1,401 +0,0 @@
-/**
- * Many similar implementations exist. See for example libwsbm
- * or the linux kernel include/atomic.h
- *
- * No copyright claimed on this file.
- *
- */
-
-#ifndef U_ATOMIC_H
-#define U_ATOMIC_H
-
-#include "pipe/p_compiler.h"
-#include "pipe/p_defines.h"
-
-/* Favor OS-provided implementations.
- *
- * Where no OS-provided implementation is available, fall back to
- * locally coded assembly, compiler intrinsic or ultimately a
- * mutex-based implementation.
- */
-#if defined(PIPE_OS_SOLARIS)
-#define PIPE_ATOMIC_OS_SOLARIS
-#elif defined(PIPE_CC_MSVC)
-#define PIPE_ATOMIC_MSVC_INTRINSIC
-#elif (defined(PIPE_CC_MSVC) && defined(PIPE_ARCH_X86))
-#define PIPE_ATOMIC_ASM_MSVC_X86                
-#elif defined(PIPE_CC_GCC) && (PIPE_CC_GCC_VERSION >= 401)
-#define PIPE_ATOMIC_GCC_INTRINSIC
-#elif (defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86))
-#define PIPE_ATOMIC_ASM_GCC_X86
-#elif (defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86_64))
-#define PIPE_ATOMIC_ASM_GCC_X86_64
-#else
-#error "Unsupported platform"
-#endif
-
-
-#if defined(PIPE_ATOMIC_ASM_GCC_X86_64)
-#define PIPE_ATOMIC "GCC x86_64 assembly"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define p_atomic_set(_v, _i) (*(_v) = (_i))
-#define p_atomic_read(_v) (*(_v))
-
-static INLINE boolean
-p_atomic_dec_zero(int32_t *v)
-{
-   unsigned char c;
-
-   __asm__ __volatile__("lock; decl %0; sete %1":"+m"(*v), "=qm"(c)
-			::"memory");
-
-   return c != 0;
-}
-
-static INLINE void
-p_atomic_inc(int32_t *v)
-{
-   __asm__ __volatile__("lock; incl %0":"+m"(*v));
-}
-
-static INLINE void
-p_atomic_dec(int32_t *v)
-{
-   __asm__ __volatile__("lock; decl %0":"+m"(*v));
-}
-
-static INLINE int32_t
-p_atomic_inc_return(int32_t *v)
-{
-   return __sync_add_and_fetch(v, 1);
-}
-
-static INLINE int32_t
-p_atomic_dec_return(int32_t *v)
-{
-   return __sync_sub_and_fetch(v, 1);
-}
-
-static INLINE int32_t
-p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
-{
-   return __sync_val_compare_and_swap(v, old, _new);
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* PIPE_ATOMIC_ASM_GCC_X86_64 */
-
-
-#if defined(PIPE_ATOMIC_ASM_GCC_X86)
-
-#define PIPE_ATOMIC "GCC x86 assembly"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define p_atomic_set(_v, _i) (*(_v) = (_i))
-#define p_atomic_read(_v) (*(_v))
-
-static INLINE boolean
-p_atomic_dec_zero(int32_t *v)
-{
-   unsigned char c;
-
-   __asm__ __volatile__("lock; decl %0; sete %1":"+m"(*v), "=qm"(c)
-			::"memory");
-
-   return c != 0;
-}
-
-static INLINE void
-p_atomic_inc(int32_t *v)
-{
-   __asm__ __volatile__("lock; incl %0":"+m"(*v));
-}
-
-static INLINE void
-p_atomic_dec(int32_t *v)
-{
-   __asm__ __volatile__("lock; decl %0":"+m"(*v));
-}
-
-static INLINE int32_t
-p_atomic_inc_return(int32_t *v)
-{
-   return __sync_add_and_fetch(v, 1);
-}
-
-static INLINE int32_t
-p_atomic_dec_return(int32_t *v)
-{
-   return __sync_sub_and_fetch(v, 1);
-}
-
-static INLINE int32_t
-p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
-{
-   return __sync_val_compare_and_swap(v, old, _new);
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
-
-
-/* Implementation using GCC-provided synchronization intrinsics
- */
-#if defined(PIPE_ATOMIC_GCC_INTRINSIC)
-
-#define PIPE_ATOMIC "GCC Sync Intrinsics"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define p_atomic_set(_v, _i) (*(_v) = (_i))
-#define p_atomic_read(_v) (*(_v))
-
-static INLINE boolean
-p_atomic_dec_zero(int32_t *v)
-{
-   return (__sync_sub_and_fetch(v, 1) == 0);
-}
-
-static INLINE void
-p_atomic_inc(int32_t *v)
-{
-   (void) __sync_add_and_fetch(v, 1);
-}
-
-static INLINE void
-p_atomic_dec(int32_t *v)
-{
-   (void) __sync_sub_and_fetch(v, 1);
-}
-
-static INLINE int32_t
-p_atomic_inc_return(int32_t *v)
-{
-   return __sync_add_and_fetch(v, 1);
-}
-
-static INLINE int32_t
-p_atomic_dec_return(int32_t *v)
-{
-   return __sync_sub_and_fetch(v, 1);
-}
-
-static INLINE int32_t
-p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
-{
-   return __sync_val_compare_and_swap(v, old, _new);
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
-
-
-/* Unlocked version for single threaded environments, such as some
- * windows kernel modules.
- */
-#if defined(PIPE_ATOMIC_OS_UNLOCKED) 
-
-#define PIPE_ATOMIC "Unlocked"
-
-#define p_atomic_set(_v, _i) (*(_v) = (_i))
-#define p_atomic_read(_v) (*(_v))
-#define p_atomic_dec_zero(_v) ((boolean) --(*(_v)))
-#define p_atomic_inc(_v) ((void) (*(_v))++)
-#define p_atomic_dec(_v) ((void) (*(_v))--)
-#define p_atomic_inc_return(_v) ((*(_v))++)
-#define p_atomic_dec_return(_v) ((*(_v))--)
-#define p_atomic_cmpxchg(_v, old, _new) (*(_v) == old ? *(_v) = (_new) : *(_v))
-
-#endif
-
-
-/* Locally coded assembly for MSVC on x86:
- */
-#if defined(PIPE_ATOMIC_ASM_MSVC_X86)
-
-#define PIPE_ATOMIC "MSVC x86 assembly"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define p_atomic_set(_v, _i) (*(_v) = (_i))
-#define p_atomic_read(_v) (*(_v))
-
-static INLINE boolean
-p_atomic_dec_zero(int32_t *v)
-{
-   unsigned char c;
-
-   __asm {
-      mov       eax, [v]
-      lock dec  dword ptr [eax]
-      sete      byte ptr [c]
-   }
-
-   return c != 0;
-}
-
-static INLINE void
-p_atomic_inc(int32_t *v)
-{
-   __asm {
-      mov       eax, [v]
-      lock inc  dword ptr [eax]
-   }
-}
-
-static INLINE void
-p_atomic_dec(int32_t *v)
-{
-   __asm {
-      mov       eax, [v]
-      lock dec  dword ptr [eax]
-   }
-}
-
-static INLINE int32_t
-p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
-{
-   int32_t orig;
-
-   __asm {
-      mov ecx, [v]
-      mov eax, [old]
-      mov edx, [_new]
-      lock cmpxchg [ecx], edx
-      mov [orig], eax
-   }
-
-   return orig;
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
-
-#if defined(PIPE_ATOMIC_MSVC_INTRINSIC)
-
-#define PIPE_ATOMIC "MSVC Intrinsics"
-
-#include <intrin.h>
-
-#pragma intrinsic(_InterlockedIncrement)
-#pragma intrinsic(_InterlockedDecrement)
-#pragma intrinsic(_InterlockedCompareExchange)
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define p_atomic_set(_v, _i) (*(_v) = (_i))
-#define p_atomic_read(_v) (*(_v))
-
-static INLINE boolean
-p_atomic_dec_zero(int32_t *v)
-{
-   return _InterlockedDecrement((long *)v) == 0;
-}
-
-static INLINE void
-p_atomic_inc(int32_t *v)
-{
-   _InterlockedIncrement((long *)v);
-}
-
-static INLINE int32_t
-p_atomic_inc_return(int32_t *v)
-{
-   return _InterlockedIncrement((long *)v);
-}
-
-static INLINE void
-p_atomic_dec(int32_t *v)
-{
-   _InterlockedDecrement((long *)v);
-}
-
-static INLINE int32_t
-p_atomic_dec_return(int32_t *v)
-{
-   return _InterlockedDecrement((long *)v);
-}
-
-static INLINE int32_t
-p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
-{
-   return _InterlockedCompareExchange((long *)v, _new, old);
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
-#if defined(PIPE_ATOMIC_OS_SOLARIS)
-
-#define PIPE_ATOMIC "Solaris OS atomic functions"
-
-#include <atomic.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define p_atomic_set(_v, _i) (*(_v) = (_i))
-#define p_atomic_read(_v) (*(_v))
-
-static INLINE boolean
-p_atomic_dec_zero(int32_t *v)
-{
-   uint32_t n = atomic_dec_32_nv((uint32_t *) v);
-
-   return n != 0;
-}
-
-#define p_atomic_inc(_v) atomic_inc_32((uint32_t *) _v)
-#define p_atomic_dec(_v) atomic_dec_32((uint32_t *) _v)
-#define p_atomic_inc_return(_v) atomic_inc_32_nv((uint32_t *) _v)
-#define p_atomic_dec_return(_v) atomic_dec_32_nv((uint32_t *) _v)
-
-#define p_atomic_cmpxchg(_v, _old, _new) \
-	atomic_cas_32( (uint32_t *) _v, (uint32_t) _old, (uint32_t) _new)
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
-
-#ifndef PIPE_ATOMIC
-#error "No pipe_atomic implementation selected"
-#endif
-
-
-
-#endif /* U_ATOMIC_H */