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benchmarks/gem_latency: Hide spinlocks for android

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2015-12-21 16:24:45 +00:00
parent 23aa051369
commit 1b9085b979
1 changed files with 21 additions and 9 deletions
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30
benchmarks/gem_latency.c
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@ -46,7 +46,6 @@
static int done; static int done;
static int fd; static int fd;
static volatile uint32_t *timestamp_reg; static volatile uint32_t *timestamp_reg;
static pthread_spinlock_t timestamp_lock;
#define REG(x) (volatile uint32_t *)((volatile char *)igt_global_mmio + x) #define REG(x) (volatile uint32_t *)((volatile char *)igt_global_mmio + x)
#define REG_OFFSET(x) ((volatile char *)(x) - (volatile char *)igt_global_mmio) #define REG_OFFSET(x) ((volatile char *)(x) - (volatile char *)igt_global_mmio)
@ -55,7 +54,10 @@ static uint32_t read_timestamp_unlocked(void)
{ {
return *timestamp_reg; return *timestamp_reg;
} }
static uint32_t (*read_timestamp)(void) = read_timestamp_unlocked;
#ifdef __USE_XOPEN2K
static pthread_spinlock_t timestamp_lock;
static uint32_t read_timestamp_locked(void) static uint32_t read_timestamp_locked(void)
{ {
uint32_t t; uint32_t t;
@ -66,8 +68,20 @@ static uint32_t read_timestamp_locked(void)
return t; return t;
} }
static int setup_timestamp_locked(void)
{
if (pthread_spin_init(&timestamp_lock, 0))
return 0;
static uint32_t (*read_timestamp)(void) = read_timestamp_unlocked; read_timestamp = read_timestamp_locked;
return 1;
}
#else
static int setup_timestamp_locked(void)
{
return 0;
}
#endif
struct consumer { struct consumer {
pthread_t thread; pthread_t thread;
@ -401,7 +415,7 @@ static int run(int seconds,
fd = drm_open_driver(DRIVER_INTEL); fd = drm_open_driver(DRIVER_INTEL);
gen = intel_gen(intel_get_drm_devid(fd)); gen = intel_gen(intel_get_drm_devid(fd));
if (gen < 6) if (gen < 6)
return 77; /* Needs BCS timestamp */ return IGT_EXIT_SKIP; /* Needs BCS timestamp */
intel_register_access_init(intel_get_pci_device(), false); intel_register_access_init(intel_get_pci_device(), false);
@ -410,15 +424,13 @@ static int run(int seconds,
else else
timestamp_reg = REG(BCS_TIMESTAMP); timestamp_reg = REG(BCS_TIMESTAMP);
if (gen < 8) { if (gen < 8 && !setup_timestamp_locked())
pthread_spin_init(&timestamp_lock, 0); return IGT_EXIT_SKIP;
read_timestamp = read_timestamp_locked;
}
nrun = read_timestamp(); nrun = read_timestamp();
usleep(1); usleep(1);
if (read_timestamp() == nrun) if (read_timestamp() == nrun)
return 77; return IGT_EXIT_SKIP;
scratch = gem_create(fd, 4*WIDTH*HEIGHT); scratch = gem_create(fd, 4*WIDTH*HEIGHT);
nop_batch = create_nop(); nop_batch = create_nop();
@ -463,7 +475,7 @@ static int run(int seconds,
pthread_attr_setschedpolicy(&attr, SCHED_FIFO); pthread_attr_setschedpolicy(&attr, SCHED_FIFO);
pthread_attr_setschedparam(&attr, &param); pthread_attr_setschedparam(&attr, &param);
#else #else
return 77; return IGT_EXIT_SKIP;
#endif #endif
} }
for (n = 0; n < nproducers; n++) for (n = 0; n < nproducers; n++)