diff options
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 23 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.h | 1 | ||||
| -rw-r--r-- | include/uapi/drm/msm_drm.h | 1 |
4 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c index 3d07a5a1f338..b371f1c04a47 100644 --- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c @@ -200,6 +200,11 @@ static int a4xx_hw_init(struct msm_gpu *gpu) /* Turn on performance counters: */ gpu_write(gpu, REG_A4XX_RBBM_PERFCTR_CTL, 0x01); + /* use the first CP counter for timestamp queries.. userspace may set + * this as well but it selects the same counter/countable: + */ + gpu_write(gpu, REG_A4XX_CP_PERFCTR_CP_SEL_0, CP_ALWAYS_COUNT); + if (adreno_is_a430(adreno_gpu)) gpu_write(gpu, REG_A4XX_UCHE_CACHE_WAYS_VFD, 0x07); @@ -294,6 +299,7 @@ static int a4xx_hw_init(struct msm_gpu *gpu) gpu_write(gpu, REG_A4XX_CP_ME_CNTL, 0); a4xx_me_init(gpu); + return 0; } @@ -585,6 +591,22 @@ static int a4xx_pm_suspend(struct msm_gpu *gpu) { return 0; } +static int a4xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value) +{ + uint32_t hi, lo, tmp; + + tmp = gpu_read(gpu, REG_A4XX_RBBM_PERFCTR_CP_0_HI); + do { + hi = tmp; + lo = gpu_read(gpu, REG_A4XX_RBBM_PERFCTR_CP_0_LO); + tmp = gpu_read(gpu, REG_A4XX_RBBM_PERFCTR_CP_0_HI); + } while (tmp != hi); + + *value = (((uint64_t)hi) << 32) | lo; + + return 0; +} + static const struct adreno_gpu_funcs funcs = { .base = { .get_param = adreno_get_param, @@ -602,6 +624,7 @@ static const struct adreno_gpu_funcs funcs = { .show = a4xx_show, #endif }, + .get_timestamp = a4xx_get_timestamp, }; struct msm_gpu *a4xx_gpu_init(struct drm_device *dev) 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; diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h index c26aea13df6d..1d07511f4d22 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -114,6 +114,7 @@ struct adreno_rev { struct adreno_gpu_funcs { struct msm_gpu_funcs base; + int (*get_timestamp)(struct msm_gpu *gpu, uint64_t *value); }; struct adreno_info { diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h index 0e3c4c48b326..254d3e92d18e 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_GMEM_SIZE 0x02 #define MSM_PARAM_CHIP_ID 0x03 #define MSM_PARAM_MAX_FREQ 0x04 +#define MSM_PARAM_TIMESTAMP 0x05 struct drm_msm_param { __u32 pipe; /* in, MSM_PIPE_x */ |