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| author | Konrad Dybcio <konrad.dybcio@linaro.org> | 2023-02-23 11:52:02 +0100 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2023-03-20 11:04:59 -0700 |
| commit | b41e83732b4865e5219707254c52611509c08625 (patch) | |
| tree | e7baf286c1bb91f4bcf087061a1324dc48868b6e /drivers/gpu/drm/msm/adreno/a4xx_gpu.c | |
| parent | a9cf6e7fc3f1aa1e7754e8169701e91d50ad8468 (diff) | |
| download | linux-stable-b41e83732b4865e5219707254c52611509c08625.tar.gz linux-stable-b41e83732b4865e5219707254c52611509c08625.tar.bz2 linux-stable-b41e83732b4865e5219707254c52611509c08625.zip | |
drm/msm/a4xx: Implement .gpu_busy
Add support for gpu_busy on a4xx, which is required for devfreq
support.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/523791/
Link: https://lore.kernel.org/r/20230223-topic-opp-v3-6-5f22163cd1df@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a4xx_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c index 3e09d3a7a0ac..715436cb3996 100644 --- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c @@ -611,6 +611,16 @@ static int a4xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value) return 0; } +static u64 a4xx_gpu_busy(struct msm_gpu *gpu, unsigned long *out_sample_rate) +{ + u64 busy_cycles; + + busy_cycles = gpu_read64(gpu, REG_A4XX_RBBM_PERFCTR_RBBM_1_LO); + *out_sample_rate = clk_get_rate(gpu->core_clk); + + return busy_cycles; +} + static u32 a4xx_get_rptr(struct msm_gpu *gpu, struct msm_ringbuffer *ring) { ring->memptrs->rptr = gpu_read(gpu, REG_A4XX_CP_RB_RPTR); @@ -632,6 +642,7 @@ static const struct adreno_gpu_funcs funcs = { #if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP) .show = adreno_show, #endif + .gpu_busy = a4xx_gpu_busy, .gpu_state_get = a4xx_gpu_state_get, .gpu_state_put = adreno_gpu_state_put, .create_address_space = adreno_create_address_space, |