diff options
| author | Rob Clark <robdclark@gmail.com> | 2016-02-22 14:26:21 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2016-03-03 19:55:32 +0300 |
| commit | 6c77d1abe61797239533918d7a0336fc84f4aef1 (patch) | |
| tree | 0745cdcd1ccf1d9bd85445ba135bf6034d4f63fb /drivers/gpu/drm/msm/adreno/adreno_gpu.c | |
| parent | 4313c744d99314f84a7a98771a17c0c1adfb4de6 (diff) | |
| download | linux-6c77d1abe61797239533918d7a0336fc84f4aef1.tar.xz | |
drm/msm: add timestamp param
We need this for GL_TIMESTAMP queries.
Note: currently only supported on a4xx.. a3xx doesn't have this
always-on counter. I think we could emulate it with the one CP
counter that is available, but for now it is of limited usefulness
on a3xx (since we can't seem to do time-elapsed queries in any sane
way with the existing firmware on a3xx, and if you are trying to do
profiling on a tiler you want time-elapsed). We can add that later
if it becomes useful.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/adreno_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 2859b1991259..4951172ede06 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -44,6 +44,10 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value) case MSM_PARAM_MAX_FREQ: *value = adreno_gpu->base.fast_rate; return 0; + case MSM_PARAM_TIMESTAMP: + if (adreno_gpu->funcs->get_timestamp) + return adreno_gpu->funcs->get_timestamp(gpu, value); + return -EINVAL; default: DBG("%s: invalid param: %u", gpu->name, param); return -EINVAL; |