diff options
Diffstat (limited to 'drivers/gpu/drm/msm/adreno')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index 6a6849309b6a..40b4f8a0ae6d 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -1436,12 +1436,20 @@ static struct msm_ringbuffer *a5xx_active_ring(struct msm_gpu *gpu) return a5xx_gpu->cur_ring; } -static int a5xx_gpu_busy(struct msm_gpu *gpu, uint64_t *value) +static unsigned long a5xx_gpu_busy(struct msm_gpu *gpu) { - *value = gpu_read64(gpu, REG_A5XX_RBBM_PERFCTR_RBBM_0_LO, - REG_A5XX_RBBM_PERFCTR_RBBM_0_HI); + u64 busy_cycles; + unsigned long busy_time; - return 0; + busy_cycles = gpu_read64(gpu, REG_A5XX_RBBM_PERFCTR_RBBM_0_LO, + REG_A5XX_RBBM_PERFCTR_RBBM_0_HI); + + busy_time = (busy_cycles - gpu->devfreq.busy_cycles) / + (clk_get_rate(gpu->core_clk) / 1000000); + + gpu->devfreq.busy_cycles = busy_cycles; + + return busy_time; } static const struct adreno_gpu_funcs funcs = { |