mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
114 lines
3.9 KiB
C
114 lines
3.9 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "avassert.h"
|
|
#include "macos_kperf.h"
|
|
#include "thread.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <dlfcn.h>
|
|
|
|
#define KPERF_LIST \
|
|
F(int, kpc_get_counting, void) \
|
|
F(int, kpc_force_all_ctrs_set, int) \
|
|
F(int, kpc_set_counting, uint32_t) \
|
|
F(int, kpc_set_thread_counting, uint32_t) \
|
|
F(int, kpc_set_config, uint32_t, void *) \
|
|
F(int, kpc_get_config, uint32_t, void *) \
|
|
F(int, kpc_set_period, uint32_t, void *) \
|
|
F(int, kpc_get_period, uint32_t, void *) \
|
|
F(uint32_t, kpc_get_counter_count, uint32_t) \
|
|
F(uint32_t, kpc_get_config_count, uint32_t) \
|
|
F(int, kperf_sample_get, int *) \
|
|
F(int, kpc_get_thread_counters, int, unsigned int, void *)
|
|
|
|
#define F(ret, name, ...) \
|
|
typedef ret name##proc(__VA_ARGS__); \
|
|
static name##proc *name = NULL;
|
|
KPERF_LIST
|
|
#undef F
|
|
|
|
#define CFGWORD_EL0A32EN_MASK (0x10000)
|
|
#define CFGWORD_EL0A64EN_MASK (0x20000)
|
|
#define CFGWORD_EL1EN_MASK (0x40000)
|
|
#define CFGWORD_EL3EN_MASK (0x80000)
|
|
#define CFGWORD_ALLMODES_MASK (0xf0000)
|
|
|
|
#define CPMU_NONE 0
|
|
#define CPMU_CORE_CYCLE 0x02
|
|
#define CPMU_INST_A64 0x8c
|
|
#define CPMU_INST_BRANCH 0x8d
|
|
#define CPMU_SYNC_DC_LOAD_MISS 0xbf
|
|
#define CPMU_SYNC_DC_STORE_MISS 0xc0
|
|
#define CPMU_SYNC_DTLB_MISS 0xc1
|
|
#define CPMU_SYNC_ST_HIT_YNGR_LD 0xc4
|
|
#define CPMU_SYNC_BR_ANY_MISP 0xcb
|
|
#define CPMU_FED_IC_MISS_DEM 0xd3
|
|
#define CPMU_FED_ITLB_MISS 0xd4
|
|
|
|
#define KPC_CLASS_FIXED_MASK (1 << 0)
|
|
#define KPC_CLASS_CONFIGURABLE_MASK (1 << 1)
|
|
#define KPC_CLASS_POWER_MASK (1 << 2)
|
|
#define KPC_CLASS_RAWPMU_MASK (1 << 3)
|
|
|
|
#define COUNTERS_COUNT 10
|
|
#define CONFIG_COUNT 8
|
|
#define KPC_MASK (KPC_CLASS_CONFIGURABLE_MASK | KPC_CLASS_FIXED_MASK)
|
|
|
|
static void kperf_init(void)
|
|
{
|
|
uint64_t config[COUNTERS_COUNT] = {0};
|
|
void *kperf = NULL;
|
|
|
|
av_assert0(kperf = dlopen("/System/Library/PrivateFrameworks/kperf.framework/Versions/A/kperf", RTLD_LAZY));
|
|
|
|
#define F(ret, name, ...) av_assert0(name = (name##proc *)(dlsym(kperf, #name)));
|
|
KPERF_LIST
|
|
#undef F
|
|
|
|
av_assert0(kpc_get_counter_count(KPC_MASK) == COUNTERS_COUNT);
|
|
av_assert0(kpc_get_config_count(KPC_MASK) == CONFIG_COUNT);
|
|
|
|
config[0] = CPMU_CORE_CYCLE | CFGWORD_EL0A64EN_MASK;
|
|
// config[3] = CPMU_INST_BRANCH | CFGWORD_EL0A64EN_MASK;
|
|
// config[4] = CPMU_SYNC_BR_ANY_MISP | CFGWORD_EL0A64EN_MASK;
|
|
// config[5] = CPMU_INST_A64 | CFGWORD_EL0A64EN_MASK;
|
|
|
|
av_assert0(kpc_set_config(KPC_MASK, config) == 0 || !"the kperf API needs to be run as root");
|
|
av_assert0(kpc_force_all_ctrs_set(1) == 0);
|
|
av_assert0(kpc_set_counting(KPC_MASK) == 0);
|
|
av_assert0(kpc_set_thread_counting(KPC_MASK) == 0);
|
|
}
|
|
|
|
void ff_kperf_init(void)
|
|
{
|
|
static AVOnce init_static_once = AV_ONCE_INIT;
|
|
ff_thread_once(&init_static_once, kperf_init);
|
|
}
|
|
|
|
uint64_t ff_kperf_cycles()
|
|
{
|
|
uint64_t counters[COUNTERS_COUNT];
|
|
if (kpc_get_thread_counters(0, COUNTERS_COUNT, counters)) {
|
|
return -1;
|
|
}
|
|
|
|
return counters[0];
|
|
}
|