From: Matt Turner Date: Fri, 21 Nov 2014 23:37:54 +0000 (-0800) Subject: util: Move u_atomic.h to src/util. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ccad3829e3e6e25b7d7ae746d17b88d51a70660c;p=mesa.git util: Move u_atomic.h to src/util. To be shared outside of Gallium. Reviewed-by: Jose Fonseca --- diff --git a/src/gallium/Automake.inc b/src/gallium/Automake.inc index 9b312b113ea..95aae50d64b 100644 --- a/src/gallium/Automake.inc +++ b/src/gallium/Automake.inc @@ -32,6 +32,7 @@ GALLIUM_DRIVER_CXXFLAGS = \ $(VISIBILITY_CXXFLAGS) GALLIUM_TARGET_CFLAGS = \ + -I$(top_srcdir)/src \ -I$(top_srcdir)/include \ -I$(top_srcdir)/src/loader \ -I$(top_srcdir)/src/gallium/include \ @@ -50,6 +51,7 @@ GALLIUM_COMMON_LIB_DEPS = \ $(DLOPEN_LIBS) GALLIUM_WINSYS_CFLAGS = \ + -I$(top_srcdir)/src \ -I$(top_srcdir)/include \ -I$(top_srcdir)/src/gallium/include \ -I$(top_srcdir)/src/gallium/auxiliary \ 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 - -#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 - -#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 */ diff --git a/src/util/u_atomic.h b/src/util/u_atomic.h new file mode 100644 index 00000000000..2500bc75249 --- /dev/null +++ b/src/util/u_atomic.h @@ -0,0 +1,401 @@ +/** + * 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 + +#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 + +#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 */