Differential D1720 Diff 5775 intern/cycles/util/util_system.cpp

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intern/cycles/util/util_system.cpp

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* Unless required by applicable law or agreed to in writing, software		* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,		* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and		* See the License for the specific language governing permissions and
* limitations under the License.		* limitations under the License.
*/		*/

#include "util_system.h"		#include "util_system.h"
		#include "util_debug.h"
#include "util_types.h"		#include "util_types.h"
#include "util_string.h"		#include "util_string.h"

#ifdef _WIN32		#ifdef _WIN32
#if(!defined(FREE_WINDOWS))		#if(!defined(FREE_WINDOWS))
#include <intrin.h>		#include <intrin.h>
#endif		#endif
#include <windows.h>		#include <windows.h>
▲ Show 20 Lines • Show All 95 Lines • ▼ Show 20 Lines	struct CPUCapabilities {
bool avx2;		bool avx2;
bool xop;		bool xop;
bool fma3;		bool fma3;
bool fma4;		bool fma4;
bool bmi1;		bool bmi1;
bool bmi2;		bool bmi2;
};		};

static void system_cpu_capabilities_override(CPUCapabilities *caps)
{
/* Only capabilities which affects on cycles kernel. */
if(getenv("CYCLES_CPU_NO_AVX2")) {
caps->avx2 = false;
}
if(getenv("CYCLES_CPU_NO_AVX")) {
caps->avx = false;
}
if(getenv("CYCLES_CPU_NO_SSE41")) {
caps->sse41 = false;
}
if(getenv("CYCLES_CPU_NO_SSE3")) {
caps->sse3 = false;
}
if(getenv("CYCLES_CPU_NO_SSE2")) {
caps->sse2 = false;
}
if(getenv("CYCLES_CPU_NO_SSE")) {
caps->sse = false;
}
}

static CPUCapabilities& system_cpu_capabilities()		static CPUCapabilities& system_cpu_capabilities()
{		{
static CPUCapabilities caps;		static CPUCapabilities caps;
static bool caps_init = false;		static bool caps_init = false;

if(!caps_init) {		if(!caps_init) {
int result[4], num;		int result[4], num;

Show All 36 Lines	#endif
caps.f16c = (result[2] & ((int)1 << 29)) != 0;		caps.f16c = (result[2] & ((int)1 << 29)) != 0;

__cpuid(result, 0x00000007);		__cpuid(result, 0x00000007);
caps.bmi1 = (result[1] & ((int)1 << 3)) != 0;		caps.bmi1 = (result[1] & ((int)1 << 3)) != 0;
caps.bmi2 = (result[1] & ((int)1 << 8)) != 0;		caps.bmi2 = (result[1] & ((int)1 << 8)) != 0;
caps.avx2 = (result[1] & ((int)1 << 5)) != 0;		caps.avx2 = (result[1] & ((int)1 << 5)) != 0;
}		}

system_cpu_capabilities_override(&caps);

caps_init = true;		caps_init = true;
}		}

return caps;		return caps;
}		}

bool system_cpu_support_sse2()		bool system_cpu_support_sse2()
{		{
CPUCapabilities& caps = system_cpu_capabilities();		CPUCapabilities& caps = system_cpu_capabilities();
return caps.sse && caps.sse2;		return DebugFlags().cpu.sse2 && caps.sse && caps.sse2;
}		}

bool system_cpu_support_sse3()		bool system_cpu_support_sse3()
{		{
CPUCapabilities& caps = system_cpu_capabilities();		CPUCapabilities& caps = system_cpu_capabilities();
return caps.sse && caps.sse2 && caps.sse3 && caps.ssse3;		return DebugFlags().cpu.sse3 &&
		caps.sse && caps.sse2 && caps.sse3 && caps.ssse3;
}		}

bool system_cpu_support_sse41()		bool system_cpu_support_sse41()
{		{
CPUCapabilities& caps = system_cpu_capabilities();		CPUCapabilities& caps = system_cpu_capabilities();
return caps.sse && caps.sse2 && caps.sse3 && caps.ssse3 && caps.sse41;		return DebugFlags().cpu.sse41 &&
		caps.sse && caps.sse2 && caps.sse3 && caps.ssse3 && caps.sse41;
}		}

bool system_cpu_support_avx()		bool system_cpu_support_avx()
{		{
CPUCapabilities& caps = system_cpu_capabilities();		CPUCapabilities& caps = system_cpu_capabilities();
return caps.sse && caps.sse2 && caps.sse3 && caps.ssse3 && caps.sse41 && caps.avx;		return DebugFlags().cpu.avx &&
		caps.sse && caps.sse2 && caps.sse3 && caps.ssse3 && caps.sse41 && caps.avx;
}		}

bool system_cpu_support_avx2()		bool system_cpu_support_avx2()
{		{
CPUCapabilities& caps = system_cpu_capabilities();		CPUCapabilities& caps = system_cpu_capabilities();
return caps.sse && caps.sse2 && caps.sse3 && caps.ssse3 && caps.sse41 && caps.avx && caps.f16c && caps.avx2 && caps.fma3 && caps.bmi1 && caps.bmi2;		return DebugFlags().cpu.avx2 &&
		caps.sse && caps.sse2 && caps.sse3 && caps.ssse3 && caps.sse41 && caps.avx && caps.f16c && caps.avx2 && caps.fma3 && caps.bmi1 && caps.bmi2;
}		}
#else		#else

bool system_cpu_support_sse2()		bool system_cpu_support_sse2()
{		{
return false;		return false;
}		}

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