client/deps/fio/crc32c-intel.patch - Issue 3412036: Basis for cryptohome+power_SuspendResume stress test.

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Side by Side Diff: client/deps/fio/crc32c-intel.patch

Issue 3412036: Basis for cryptohome+power_SuspendResume stress test. (Closed) Base URL: http://git.chromium.org/git/autotest.git

Patch Set: tweaks to test params Created 9 years, 11 months ago

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	1 --- crc/crc32c-intel.c 2010-08-27 09:04:13.000000000 +0200

	2 +++ crc/crc32c-intel.c.new2 2010-09-17 15:04:28.000000000 +0200

	3 @@ -74,30 +74,12 @@

	4 return crc;

	5 }

	6

	7 -static void do_cpuid(unsigned int eax, unsigned int ebx, unsigned int *ecx,

	8 - unsigned int *edx)

	9 -{

	10 - int id = *eax;

	11 -

	12 - asm("movl %4, %%eax;"

	13 - "cpuid;"

	14 - "movl %%eax, %0;"

	15 - "movl %%ebx, %1;"

	16 - "movl %%ecx, %2;"

	17 - "movl %%edx, %3;"

	18 - : "=r" (eax), "=r" (ebx), "=r" (ecx), "=r" (edx)

	19 - : "r" (id)

	20 - : "eax", "ebx", "ecx", "edx");

	21 -}

	22 -

	23 -int crc32c_intel_works(void)

	24 -{

	25 - unsigned int eax, ebx, ecx, edx;

	26 -

	27 - eax = 1;

	28 -

	29 - do_cpuid(&eax, &ebx, &ecx, &edx);

	30 - return (ecx & (1 << 20)) != 0;

	31 +int crc32c_intel_works(void) {

	32 + unsigned int _eax, _ebx, _ecx, _edx;

	33 + unsigned int op = 1;

	34 + asm ("cpuid" : "=a" (_eax), "=r" (_ebx), "=c" (_ecx), "=d" (_edx)

	35 + : "a" (op));

	36 + return (_ecx & (1 << 20)) != 0;

	37 }

	38

	39 #endif /* ARCH_HAVE_SSE */

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