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| author | Jordan Crouse <jcrouse@codeaurora.org> | 2017-10-20 11:06:58 -0600 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2017-10-28 11:01:37 -0400 |
| commit | a6e29a0eea3ccbf6fb8a908a3fc3e931f3ba2ae4 (patch) | |
| tree | dd9789bd1000e707465b99c59d544d6d52eeb490 | |
| parent | f97decac5f4c2d862e5b848694e3ffb29fc8acdd (diff) | |
| download | linux-a6e29a0eea3ccbf6fb8a908a3fc3e931f3ba2ae4.tar.gz | |
drm/msm: Add a parameter query for the number of ringbuffers
In order to manage ringbuffer priority to its fullest userspace should know how many ringbuffers it has to work with. Add a parameter to return the number of active rings. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 | ||||
| -rw-r--r-- | include/uapi/drm/msm_drm.h | 1 |
2 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 fd0fb0568dd3..4e9caf97b20f 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -57,6 +57,9 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value) return ret; } return -EINVAL; + case MSM_PARAM_NR_RINGS: + *value = gpu->nr_rings; + return 0; default: DBG("%s: invalid param: %u", gpu->name, param); return -EINVAL; diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h index 12d7619afa22..bbbaffad772d 100644 --- a/include/uapi/drm/msm_drm.h +++ b/include/uapi/drm/msm_drm.h @@ -73,6 +73,7 @@ struct drm_msm_timespec { #define MSM_PARAM_MAX_FREQ 0x04 #define MSM_PARAM_TIMESTAMP 0x05 #define MSM_PARAM_GMEM_BASE 0x06 +#define MSM_PARAM_NR_RINGS 0x07 struct drm_msm_param { __u32 pipe; /* in, MSM_PIPE_x */ |