We need this in userspace for interpreting some of the perf ctrs.
Note possibly not quite sufficient if we had some frequency mgmt approach other than race-to-idle. Not really sure what the best thing to do if we did. Although displaying results as a percentage of max frequence seems sensible(ish) if we did.
Signed-off-by: Rob Clark robdclark@gmail.com --- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 +++ include/uapi/drm/msm_drm.h | 1 + 2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index a3b54cc..0e1d0c5 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -41,6 +41,9 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value) (adreno_gpu->rev.major << 16) | (adreno_gpu->rev.core << 24); return 0; + case MSM_PARAM_MAX_FREQ: + *value = adreno_gpu->base.fast_rate; + 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 75a232b..f121624 100644 --- a/include/uapi/drm/msm_drm.h +++ b/include/uapi/drm/msm_drm.h @@ -51,6 +51,7 @@ struct drm_msm_timespec { #define MSM_PARAM_GPU_ID 0x01 #define MSM_PARAM_GMEM_SIZE 0x02 #define MSM_PARAM_CHIP_ID 0x03 +#define MSM_PARAM_MAX_FREQ 0x04
struct drm_msm_param { __u32 pipe; /* in, MSM_PIPE_x */