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| author | Michael Niedermayer <michaelni@gmx.at> | 2005-05-21 21:37:07 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2005-05-21 21:37:07 +0000 |
| commit | 0775c88f4ecef954987e82cdd83c805ff004a5ec (patch) | |
| tree | 9a133cd2c688b16c22f9c420510dba327f31796c /libavcodec/common.h | |
| parent | 2935001c86fe647fde79395f15a4cf679cc1c3b2 (diff) | |
| download | ffmpeg-0775c88f4ecef954987e82cdd83c805ff004a5ec.tar.gz | |
START/STOP_TIMER for ppc32 by (Luca Barbato: lu_zero, gentoo org)
Originally committed as revision 4298 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/common.h')
| -rw-r--r-- | libavcodec/common.h | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/libavcodec/common.h b/libavcodec/common.h index 5a47c4a3c8..75ef127f24 100644 --- a/libavcodec/common.h +++ b/libavcodec/common.h @@ -456,9 +456,9 @@ if((y)<(x)){\ } #endif -#if defined(ARCH_X86) || defined(ARCH_X86_64) +#if defined(ARCH_X86) || defined(ARCH_X86_64) || defined(ARCH_POWERPC) #if defined(ARCH_X86_64) -static inline uint64_t rdtsc(void) +static inline uint64_t read_time(void) { uint64_t a, d; asm volatile( "rdtsc\n\t" @@ -466,8 +466,8 @@ static inline uint64_t rdtsc(void) ); return (d << 32) | (a & 0xffffffff); } -#else -static inline long long rdtsc(void) +#elif defined(ARCH_X86) +static inline long long read_time(void) { long long l; asm volatile( "rdtsc\n\t" @@ -475,14 +475,33 @@ static inline long long rdtsc(void) ); return l; } +#else //FIXME check ppc64 +static inline uint64_t read_time(void) +{ + uint32_t tbu, tbl, temp; + + /* from section 2.2.1 of the 32-bit PowerPC PEM */ + __asm__ __volatile__( + "1:\n" + "mftbu %2\n" + "mftb %0\n" + "mftbu %1\n" + "cmpw %2,%1\n" + "bne 1b\n" + : "=r"(tbl), "=r"(tbu), "=r"(temp) + : + : "cc"); + + return (((uint64_t)tbu)<<32) | (uint64_t)tbl; +} #endif #define START_TIMER \ uint64_t tend;\ -uint64_t tstart= rdtsc();\ +uint64_t tstart= read_time();\ #define STOP_TIMER(id) \ -tend= rdtsc();\ +tend= read_time();\ {\ static uint64_t tsum=0;\ static int tcount=0;\ |