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[71.237.100.236]) by smtp.gmail.com with ESMTPSA id y15sm3987161ilv.70.2021.04.02.07.50.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Apr 2021 07:50:03 -0700 (PDT) Date: Fri, 2 Apr 2021 08:50:01 -0600 From: Jordan Crouse To: Rob Clark Subject: Re: [Freedreno] [PATCH 1/2] drm/msm: Fix a5xx/a6xx timestamps Message-ID: <20210402145001.n7upxwvyub2tyavz@cosmicpenguin.net> Mail-Followup-To: Rob Clark , dri-devel@lists.freedesktop.org, Rob Clark , "open list:DRM DRIVER FOR MSM ADRENO GPU" , Sai Prakash Ranjan , "Gustavo A. R. Silva" , Jonathan Marek , David Airlie , Sam Ravnborg , Sharat Masetty , Jordan Crouse , Bjorn Andersson , Eric Anholt , "Kristian H. Kristensen" , Daniel Vetter , "open list:DRM DRIVER FOR MSM ADRENO GPU" , Marijn Suijten , Sean Paul , open list , Emil Velikov References: <20210325012358.1759770-1-robdclark@gmail.com> <20210325012358.1759770-2-robdclark@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210325012358.1759770-2-robdclark@gmail.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Clark , Sai Prakash Ranjan , Jonathan Marek , David Airlie , Sam Ravnborg , Sharat Masetty , "Gustavo A. R. Silva" , dri-devel@lists.freedesktop.org, Bjorn Andersson , Jordan Crouse , "Kristian H. Kristensen" , "open list:DRM DRIVER FOR MSM ADRENO GPU" , Marijn Suijten , Sean Paul , "open list:DRM DRIVER FOR MSM ADRENO GPU" , open list , Emil Velikov Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Wed, Mar 24, 2021 at 06:23:52PM -0700, Rob Clark wrote: > From: Rob Clark > > They were reading a counter that was configured to ALWAYS_COUNT (ie. > cycles that the GPU is doing something) rather than ALWAYS_ON. This > isn't the thing that userspace is looking for. Acked-by: Jordan Crouse > Signed-off-by: Rob Clark > --- > drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 4 ++-- > drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 4 ++-- > 2 files changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c > index a5af223eaf50..bb82fcd9df81 100644 > --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c > +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c > @@ -1241,8 +1241,8 @@ static int a5xx_pm_suspend(struct msm_gpu *gpu) > > static int a5xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value) > { > - *value = gpu_read64(gpu, REG_A5XX_RBBM_PERFCTR_CP_0_LO, > - REG_A5XX_RBBM_PERFCTR_CP_0_HI); > + *value = gpu_read64(gpu, REG_A5XX_RBBM_ALWAYSON_COUNTER_LO, > + REG_A5XX_RBBM_ALWAYSON_COUNTER_HI); > > return 0; > } > diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c > index 130661898546..59718c304488 100644 > --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c > +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c > @@ -1173,8 +1173,8 @@ static int a6xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value) > /* Force the GPU power on so we can read this register */ > a6xx_gmu_set_oob(&a6xx_gpu->gmu, GMU_OOB_GPU_SET); > > - *value = gpu_read64(gpu, REG_A6XX_RBBM_PERFCTR_CP_0_LO, > - REG_A6XX_RBBM_PERFCTR_CP_0_HI); > + *value = gpu_read64(gpu, REG_A6XX_CP_ALWAYS_ON_COUNTER_LO, > + REG_A6XX_CP_ALWAYS_ON_COUNTER_HI); > > a6xx_gmu_clear_oob(&a6xx_gpu->gmu, GMU_OOB_GPU_SET); > return 0; > -- > 2.29.2 > > _______________________________________________ > Freedreno mailing list > Freedreno@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/freedreno _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel