* [PATCH v2 1/2] drm/msm: Implement shutdown callback for adreno
@ 2020-10-28 14:35 Akhil P Oommen
2020-10-28 14:35 ` [PATCH v2 2/2] drm/msm: Fix duplicate gpu node in icc summary Akhil P Oommen
2020-12-29 20:15 ` [PATCH v2 1/2] drm/msm: Implement shutdown callback for adreno patchwork-bot+linux-arm-msm
0 siblings, 2 replies; 3+ messages in thread
From: Akhil P Oommen @ 2020-10-28 14:35 UTC (permalink / raw)
To: freedreno
Cc: dri-devel, linux-arm-msm, linux-kernel, jcrouse, mka, robdclark,
dianders
Implement the shutdown callback for adreno gpu platform device
to safely shutdown it before a system reboot. This helps to avoid
futher transactions from gpu after the smmu is moved to bypass mode.
Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
---
drivers/gpu/drm/msm/adreno/adreno_device.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 58e03b2..87c8b03 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -475,6 +475,11 @@ static int adreno_remove(struct platform_device *pdev)
return 0;
}
+static void adreno_shutdown(struct platform_device *pdev)
+{
+ pm_runtime_force_suspend(&pdev->dev);
+}
+
static const struct of_device_id dt_match[] = {
{ .compatible = "qcom,adreno" },
{ .compatible = "qcom,adreno-3xx" },
@@ -509,6 +514,7 @@ static const struct dev_pm_ops adreno_pm_ops = {
static struct platform_driver adreno_driver = {
.probe = adreno_probe,
.remove = adreno_remove,
+ .shutdown = adreno_shutdown,
.driver = {
.name = "adreno",
.of_match_table = dt_match,
--
2.7.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v2 2/2] drm/msm: Fix duplicate gpu node in icc summary
2020-10-28 14:35 [PATCH v2 1/2] drm/msm: Implement shutdown callback for adreno Akhil P Oommen
@ 2020-10-28 14:35 ` Akhil P Oommen
2020-12-29 20:15 ` [PATCH v2 1/2] drm/msm: Implement shutdown callback for adreno patchwork-bot+linux-arm-msm
1 sibling, 0 replies; 3+ messages in thread
From: Akhil P Oommen @ 2020-10-28 14:35 UTC (permalink / raw)
To: freedreno
Cc: dri-devel, linux-arm-msm, linux-kernel, jcrouse, mka, robdclark,
dianders
The dev_pm_opp_of_add_table() api initializes the icc nodes for gpu
indirectly. So we can avoid using of_icc_get() api in the common
probe path. To improve this, move of_icc_get() to target specific code
where it is required.
This patch helps to fix duplicate gpu node listed in the interconnect
summary from the debugfs.
Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
---
Changes in v2:
1. Minor updates (Jordan)
drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 21 +++++++++++++++++++--
drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 20 ++++++++++++++++++--
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 32 +-------------------------------
3 files changed, 38 insertions(+), 35 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
index f29c77d..93da668 100644
--- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
@@ -519,6 +519,8 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
struct msm_gpu *gpu;
struct msm_drm_private *priv = dev->dev_private;
struct platform_device *pdev = priv->gpu_pdev;
+ struct icc_path *ocmem_icc_path;
+ struct icc_path *icc_path;
int ret;
if (!pdev) {
@@ -566,13 +568,28 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
goto fail;
}
+ icc_path = devm_of_icc_get(&pdev->dev, "gfx-mem");
+ ret = IS_ERR(icc_path);
+ if (ret)
+ goto fail;
+
+ ocmem_icc_path = devm_of_icc_get(&pdev->dev, "ocmem");
+ ret = IS_ERR(ocmem_icc_path);
+ if (ret) {
+ /* allow -ENODATA, ocmem icc is optional */
+ if (ret != -ENODATA)
+ goto fail;
+ ocmem_icc_path = NULL;
+ }
+
+
/*
* Set the ICC path to maximum speed for now by multiplying the fastest
* frequency by the bus width (8). We'll want to scale this later on to
* improve battery life.
*/
- icc_set_bw(gpu->icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
- icc_set_bw(gpu->ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
+ icc_set_bw(icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
+ icc_set_bw(ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
return gpu;
diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
index 2b93b33..c0be3a0 100644
--- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
@@ -648,6 +648,8 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev)
struct msm_gpu *gpu;
struct msm_drm_private *priv = dev->dev_private;
struct platform_device *pdev = priv->gpu_pdev;
+ struct icc_path *ocmem_icc_path;
+ struct icc_path *icc_path;
int ret;
if (!pdev) {
@@ -694,13 +696,27 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev)
goto fail;
}
+ icc_path = devm_of_icc_get(&pdev->dev, "gfx-mem");
+ ret = IS_ERR(icc_path);
+ if (ret)
+ goto fail;
+
+ ocmem_icc_path = devm_of_icc_get(&pdev->dev, "ocmem");
+ ret = IS_ERR(ocmem_icc_path);
+ if (ret) {
+ /* allow -ENODATA, ocmem icc is optional */
+ if (ret != -ENODATA)
+ goto fail;
+ ocmem_icc_path = NULL;
+ }
+
/*
* Set the ICC path to maximum speed for now by multiplying the fastest
* frequency by the bus width (8). We'll want to scale this later on to
* improve battery life.
*/
- icc_set_bw(gpu->icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
- icc_set_bw(gpu->ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
+ icc_set_bw(icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
+ icc_set_bw(ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
return gpu;
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index fd8f491..ddbd863 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -899,7 +899,6 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
struct adreno_platform_config *config = dev->platform_data;
struct msm_gpu_config adreno_gpu_config = { 0 };
struct msm_gpu *gpu = &adreno_gpu->base;
- int ret;
adreno_gpu->funcs = funcs;
adreno_gpu->info = adreno_info(config->rev);
@@ -918,37 +917,8 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
pm_runtime_use_autosuspend(dev);
pm_runtime_enable(dev);
- ret = msm_gpu_init(drm, pdev, &adreno_gpu->base, &funcs->base,
+ return msm_gpu_init(drm, pdev, &adreno_gpu->base, &funcs->base,
adreno_gpu->info->name, &adreno_gpu_config);
- if (ret)
- return ret;
-
- /*
- * The legacy case, before "interconnect-names", only has a
- * single interconnect path which is equivalent to "gfx-mem"
- */
- if (!of_find_property(dev->of_node, "interconnect-names", NULL)) {
- gpu->icc_path = of_icc_get(dev, NULL);
- } else {
- gpu->icc_path = of_icc_get(dev, "gfx-mem");
- gpu->ocmem_icc_path = of_icc_get(dev, "ocmem");
- }
-
- if (IS_ERR(gpu->icc_path)) {
- ret = PTR_ERR(gpu->icc_path);
- gpu->icc_path = NULL;
- return ret;
- }
-
- if (IS_ERR(gpu->ocmem_icc_path)) {
- ret = PTR_ERR(gpu->ocmem_icc_path);
- gpu->ocmem_icc_path = NULL;
- /* allow -ENODATA, ocmem icc is optional */
- if (ret != -ENODATA)
- return ret;
- }
-
- return 0;
}
void adreno_gpu_cleanup(struct adreno_gpu *adreno_gpu)
--
2.7.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/2] drm/msm: Implement shutdown callback for adreno
2020-10-28 14:35 [PATCH v2 1/2] drm/msm: Implement shutdown callback for adreno Akhil P Oommen
2020-10-28 14:35 ` [PATCH v2 2/2] drm/msm: Fix duplicate gpu node in icc summary Akhil P Oommen
@ 2020-12-29 20:15 ` patchwork-bot+linux-arm-msm
1 sibling, 0 replies; 3+ messages in thread
From: patchwork-bot+linux-arm-msm @ 2020-12-29 20:15 UTC (permalink / raw)
To: Akhil P Oommen; +Cc: linux-arm-msm
Hello:
This series was applied to qcom/linux.git (refs/heads/for-next):
On Wed, 28 Oct 2020 20:05:10 +0530 you wrote:
> Implement the shutdown callback for adreno gpu platform device
> to safely shutdown it before a system reboot. This helps to avoid
> futher transactions from gpu after the smmu is moved to bypass mode.
>
> Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
> ---
> drivers/gpu/drm/msm/adreno/adreno_device.c | 6 ++++++
> 1 file changed, 6 insertions(+)
Here is the summary with links:
- [v2,1/2] drm/msm: Implement shutdown callback for adreno
https://git.kernel.org/qcom/c/a04c696c0a54
- [v2,2/2] drm/msm: Fix duplicate gpu node in icc summary
https://git.kernel.org/qcom/c/5785dd7a8ef0
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 3+ messages in thread
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