diff options
Diffstat (limited to 'src/gallium/include')
| -rw-r--r-- | src/gallium/include/pipe/p_atomic.h | 77 |
1 files changed, 24 insertions, 53 deletions
diff --git a/src/gallium/include/pipe/p_atomic.h b/src/gallium/include/pipe/p_atomic.h index 7698ac5e038..54dab12f894 100644 --- a/src/gallium/include/pipe/p_atomic.h +++ b/src/gallium/include/pipe/p_atomic.h @@ -18,58 +18,29 @@ extern "C" { /* 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. */ -#define PIPE_ATOMIC_OS_UNLOCKED \ - (defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) || \ - defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)) - -#define PIPE_ATOMIC_OS_MS_INTERLOCK \ - (!defined(PIPE_CC_GCC) && \ - !PIPE_ATOMIC_OS_UNLOCKED && \ - defined(PIPE_SUBSYSTEM_WINDOWS_USER)) - -#define PIPE_ATOMIC_OS_PROVIDED \ - (PIPE_ATOMIC_OS_UNLOCKED || \ - PIPE_ATOMIC_OS_MS_INTERLOCK) - -/* Where no OS-provided implementation is available, fall back to - * either locally coded assembly or ultimately a mutex-based - * implementation: - */ -#define PIPE_ATOMIC_ASM_GCC_X86 \ - (!PIPE_ATOMIC_OS_PROVIDED && \ - defined(PIPE_CC_GCC) && \ - defined(PIPE_ARCH_X86)) - -/* KW: this was originally used when x86 asm wasn't available. - * Maintain that logic here. - */ -#define PIPE_ATOMIC_GCC_INTRINISIC \ - (!PIPE_ATOMIC_OS_PROVIDED && \ - !PIPE_ATOMIC_ASM_GCC_X86 && \ - defined(PIPE_CC_GCC)) - -#define PIPE_ATOMIC_ASM_MSVC_X86 \ - (!PIPE_ATOMIC_OS_PROVIDED && \ - defined(PIPE_CC_MSVC) && \ - defined(PIPE_ARCH_X86)) - -#define PIPE_ATOMIC_ASM \ - (PIPE_ATOMIC_ASM_GCC_X86 || \ - PIPE_ATOMIC_ASM_GCC_INTRINSIC || \ - PIPE_ATOMIC_ASM_MSVC_X86) - - -/* Where no OS-provided or locally-coded assembly implemenation is - * available, use pipe_mutex: - */ -#define PIPE_ATOMIC_MUTEX \ - (!PIPE_ATOMIC_OS_PROVIDED && \ - !PIPE_ATOMIC_ASM) +#if (defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) || \ + defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)) +#define PIPE_ATOMIC_OS_UNLOCKED +#elif (defined(PIPE_CC_MSVC) && defined(PIPE_SUBSYSTEM_WINDOWS_USER)) +#define PIPE_ATOMIC_OS_MS_INTERLOCK +#elif (defined(PIPE_CC_MSVC) && defined(PIPE_ARCH_X86)) +#define PIPE_ATOMIC_ASM_MSVC_X86 +#elif (defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)) +#define PIPE_ATOMIC_ASM_GCC_X86 +#elif defined(PIPE_CC_GCC) +#define PIPE_ATOMIC_GCC_INTRINISIC +#else +#define PIPE_ATOMIC_MUTEX +#endif -#if (PIPE_ATOMIC_ASM_GCC_X86) +#if defined(PIPE_ATOMIC_ASM_GCC_X86) #define PIPE_ATOMIC "GCC x86 assembly" @@ -115,7 +86,7 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new) /* Implementation using GCC-provided synchronization intrinsics */ -#if (PIPE_ATOMIC_ASM_GCC_INTRINSIC) +#if defined(PIPE_ATOMIC_ASM_GCC_INTRINSIC) #define PIPE_ATOMIC "GCC Sync Intrinsics" @@ -157,7 +128,7 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new) /* Unlocked version for single threaded environments, such as some * windows kernel modules. */ -#if (PIPE_ATOMIC_OS_UNLOCKED) +#if defined(PIPE_ATOMIC_OS_UNLOCKED) #define PIPE_ATOMIC "Unlocked" @@ -178,7 +149,7 @@ struct pipe_atomic /* Locally coded assembly for MSVC on x86: */ -#if (PIPE_ATOMIC_ASM_MSVC_X86) +#if defined(PIPE_ATOMIC_ASM_MSVC_X86) #define PIPE_ATOMIC "MSVC x86 assembly" @@ -246,7 +217,7 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new) #endif -#if (PIPE_ATOMIC_OS_MS_INTERLOCK) +#if defined(PIPE_ATOMIC_OS_MS_INTERLOCK) #define PIPE_ATOMIC "MS userspace interlocks" @@ -288,7 +259,7 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new) -#if (PIPE_ATOMIC_MUTEX) +#if defined(PIPE_ATOMIC_MUTEX) #define PIPE_ATOMIC "mutex-based fallback" |