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gem_ring_sync_loop: check the rings supported by the kernel

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Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
Signed-off-by: Zhong Li <zhong.li@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
This commit is contained in:
Xiang, Haihao 2013-04-23 15:06:41 +08:00 committed by Ben Widawsky
parent afeb43190e
commit 0a413cd8a9
1 changed files with 34 additions and 3 deletions
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37
tests/gem_ring_sync_loop.c
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@ -55,15 +55,46 @@ static drm_intel_bo *target_buffer;
#define MI_COND_BATCH_BUFFER_END (0x36<<23 | 1) #define MI_COND_BATCH_BUFFER_END (0x36<<23 | 1)
#define MI_DO_COMPARE (1<<21) #define MI_DO_COMPARE (1<<21)
static int
get_num_rings(int fd)
{
int num_rings = 1; /* render ring is always available */
drm_i915_getparam_t gp;
int ret, tmp;
memset(&gp, 0, sizeof(gp));
gp.value = &tmp;
gp.param = I915_PARAM_HAS_BSD;
ret = drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
if ((ret == 0) & (*gp.value > 0))
num_rings++;
else
goto skip;
gp.param = I915_PARAM_HAS_BLT;
ret = drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
if ((ret == 0) & (*gp.value > 0))
num_rings++;
else
goto skip;
skip:
return num_rings;
}
static void static void
store_dword_loop(void) store_dword_loop(int fd)
{ {
int i; int i;
int num_rings = get_num_rings(fd);
srandom(0xdeadbeef); srandom(0xdeadbeef);
for (i = 0; i < 0x100000; i++) { for (i = 0; i < 0x100000; i++) {
int ring = random() % 3 + 1; int ring = random() % num_rings + 1;
if (ring == I915_EXEC_RENDER) { if (ring == I915_EXEC_RENDER) {
BEGIN_BATCH(4); BEGIN_BATCH(4);
@ -127,7 +158,7 @@ int main(int argc, char **argv)
exit(-1); exit(-1);
} }
store_dword_loop(); store_dword_loop(fd);
drm_intel_bo_unreference(target_buffer); drm_intel_bo_unreference(target_buffer);
intel_batchbuffer_free(batch); intel_batchbuffer_free(batch);