linux-kernel - [PATCH v9 05/20] drm/msm/a6xx: Move force keepalive vote removal to a6xx_gmu_force

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Message-Id: <20230223-topic-gmuwrapper-v9-5-890d8f470c8b@linaro.org>
Date:   Fri, 16 Jun 2023 01:20:46 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Rob Clark <robdclark@...omium.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH v9 05/20] drm/msm/a6xx: Move force keepalive vote removal
 to a6xx_gmu_force_off()

As pointed out by Akhil during the review process of GMU wrapper
introduction [1], it makes sense to move this write into the function
that's responsible for forcibly shutting the GMU off.

It is also very convenient to move this to GMU-specific code, so that
it does not have to be guarded by an if-condition to avoid calling it
on GMU wrapper targets.

Move the write to the aforementioned a6xx_gmu_force_off() to achieve
that. No effective functional change.

[1] https://lore.kernel.org/linux-arm-msm/20230501194022.GA18382@akhilpo-linux.qualcomm.com/

Reviewed-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 ++++++
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 6 ------
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index a6fa273d700e..32852c161aab 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -912,6 +912,12 @@ static void a6xx_gmu_force_off(struct a6xx_gmu *gmu)
 	struct adreno_gpu *adreno_gpu = &a6xx_gpu->base;
 	struct msm_gpu *gpu = &adreno_gpu->base;
 
+	/*
+	 * Turn off keep alive that might have been enabled by the hang
+	 * interrupt
+	 */
+	gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_GMU_PWR_COL_KEEPALIVE, 0);
+
 	/* Flush all the queues */
 	a6xx_hfi_stop(gmu);
 
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index ab5c446e4409..eebb4bc7c0f9 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1382,12 +1382,6 @@ static void a6xx_recover(struct msm_gpu *gpu)
 	/* Halt SQE first */
 	gpu_write(gpu, REG_A6XX_CP_SQE_CNTL, 3);
 
-	/*
-	 * Turn off keep alive that might have been enabled by the hang
-	 * interrupt
-	 */
-	gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_GMU_PWR_COL_KEEPALIVE, 0);
-
 	pm_runtime_dont_use_autosuspend(&gpu->pdev->dev);
 
 	/* active_submit won't change until we make a submission */

-- 
2.41.0