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i-g-t: check kernel enable rings or not

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1. add functions check kernel enable a ring or not.
2. add function gem_get_num_rings() to check how many rings kernel has
enable.
3. gem_ring_sync_loop.c will call gem_get_num_rings() directly instead
of original static fucntion get_number_rings().

Signed-off-by: Zhong Li <zhong.li@intel.com>
[Ben: Wrapped commit message + whitespace fixes]
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
This commit is contained in:
Zhong Li
2013-05-03 15:54:48 +08:00
committed by Ben Widawsky
parent 53d251ac23
commit 8ddf84d129
3 changed files with 60 additions and 47 deletions
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tests/gem_ring_sync_loop.c
+1 -37
View File
@@ -55,47 +55,11 @@ static drm_intel_bo *target_buffer;
#define MI_COND_BATCH_BUFFER_END (0x36<<23 | 1)
#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;
if (gem_has_vebox(fd))
num_rings++;
else
goto skip;
skip:
return num_rings;
}
static void
store_dword_loop(int fd)
{
int i;
int num_rings = get_num_rings(fd);
int num_rings = gem_get_num_rings(fd);
srandom(0xdeadbeef);