diff options
| author |   Samuel Iglesias Gonsalvez <siglesias@igalia.com> | 2021-06-07 12:44:41 +0200 |
|---|---|---|
| committer |   Rob Clark <robdclark@chromium.org> | 2021-06-23 07:33:55 -0700 |
| commit | 1d2fa58e0dda3344999cad9b195eb539310ad093 (patch) | |
| tree | f54a1d9b7014186b38426b9c5f7b37488969b54f | |
| parent | drm/msm/a6xx: add support for Adreno 660 GPU (diff) | |
| download | wireguard-linux-1d2fa58e0dda3344999cad9b195eb539310ad093.tar.xz wireguard-linux-1d2fa58e0dda3344999cad9b195eb539310ad093.zip | |
drm/msm: export hangcheck_period in debugfs
While keeping the previous default value for hangcheck period,
we allow now the possibility of configuring its value via
debugfs.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Link: https://lore.kernel.org/r/20210607104441.184700-1-siglesias@igalia.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
| -rw-r--r-- | drivers/gpu/drm/msm/msm_debugfs.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.h | 3 |
5 files changed, 10 insertions, 3 deletions
diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c index d611cc8e54a4..6be5fdbea2f1 100644 --- a/drivers/gpu/drm/msm/msm_debugfs.c +++ b/drivers/gpu/drm/msm/msm_debugfs.c @@ -226,6 +226,9 @@ void msm_debugfs_init(struct drm_minor *minor) debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root, dev, &msm_gpu_fops); + debugfs_create_u32("hangcheck_period_ms", 0600, minor->debugfs_root, + &priv->hangcheck_period); + if (priv->kms && priv->kms->funcs->debugfs_init) priv->kms->funcs->debugfs_init(priv->kms, minor); } diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 12d264196421..9b8fa2ad0d84 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -459,6 +459,7 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) mdss = priv->mdss; priv->wq = alloc_ordered_workqueue("msm", 0); + priv->hangcheck_period = DRM_MSM_HANGCHECK_DEFAULT_PERIOD; INIT_LIST_HEAD(&priv->objects); mutex_init(&priv->obj_lock); diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 9b54de95856e..2c84feaae2ba 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -244,6 +244,9 @@ struct msm_drm_private { struct shrinker shrinker; struct drm_atomic_state *pm_state; + + /* For hang detection, in ms */ + unsigned int hangcheck_period; }; struct msm_format { diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 9dd1c58430ab..4ee8ba09b762 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -561,8 +561,9 @@ static void recover_worker(struct kthread_work *work) static void hangcheck_timer_reset(struct msm_gpu *gpu) { + struct msm_drm_private *priv = gpu->dev->dev_private; mod_timer(&gpu->hangcheck_timer, - round_jiffies_up(jiffies + DRM_MSM_HANGCHECK_JIFFIES)); + round_jiffies_up(jiffies + msecs_to_jiffies(priv->hangcheck_period))); } static void hangcheck_handler(struct timer_list *t) diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index c302ab7ffb06..fdc5851355af 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -122,8 +122,7 @@ struct msm_gpu { */ #define DRM_MSM_INACTIVE_PERIOD 66 /* in ms (roughly four frames) */ -#define DRM_MSM_HANGCHECK_PERIOD 500 /* in ms */ -#define DRM_MSM_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_MSM_HANGCHECK_PERIOD) +#define DRM_MSM_HANGCHECK_DEFAULT_PERIOD 500 /* in ms */ struct timer_list hangcheck_timer; /* work for handling GPU recovery: */ |