From: Rob Clark <robdclark@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: Rob Clark <robdclark@chromium.org>,
Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Jordan Crouse <jcrouse@codeaurora.org>,
"Kristian H. Kristensen" <hoegsberg@google.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Sam Ravnborg <sam@ravnborg.org>,
Emil Velikov <emil.velikov@collabora.com>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Marijn Suijten <marijn.suijten@somainline.org>,
Jonathan Marek <jonathan@marek.ca>, Eric Anholt <eric@anholt.net>,
Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
Sharat Masetty <smasetty@codeaurora.org>,
linux-arm-msm@vger.kernel.org (open list:DRM DRIVER FOR MSM
ADRENO GPU),
freedreno@lists.freedesktop.org (open list:DRM DRIVER FOR MSM
ADRENO GPU), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 1/2] drm/msm: Fix a5xx/a6xx timestamps
Date: Wed, 24 Mar 2021 18:23:52 -0700 [thread overview]
Message-ID: <20210325012358.1759770-2-robdclark@gmail.com> (raw)
In-Reply-To: <20210325012358.1759770-1-robdclark@gmail.com>
From: Rob Clark <robdclark@chromium.org>
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.
Signed-off-by: Rob Clark <robdclark@chromium.org>
---
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
next prev parent reply other threads:[~2021-03-25 1:22 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-25 1:23 [PATCH 0/2] drm/msm: Fixes/updates for perfetto profiling Rob Clark
2021-03-25 1:23 ` Rob Clark [this message]
2021-04-02 14:50 ` [Freedreno] [PATCH 1/2] drm/msm: Fix a5xx/a6xx timestamps Jordan Crouse
2021-03-25 1:23 ` [PATCH 2/2] drm/msm: Add param for userspace to query suspend count Rob Clark
2021-04-02 14:50 ` [Freedreno] " Jordan Crouse
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