On 29/11/2019 13:59, Boris Brezillon wrote:

Commit a5efb4c9a562 ("drm/panfrost: Restructure the GEM object creation") moved the drm_mm_insert_node_generic() call to the gem->open() hook, but forgot to update perfcnt accordingly.

Patch the perfcnt logic to call panfrost_gem_open/close() where appropriate.

Fixes: a5efb4c9a562 ("drm/panfrost: Restructure the GEM object creation") Cc: stable@vger.kernel.org Signed-off-by: Boris Brezillon boris.brezillon@collabora.com

Reviewed-by: Steven Price steven.price@arm.com

Steve

---

drivers/gpu/drm/panfrost/panfrost_drv.c | 2 +- drivers/gpu/drm/panfrost/panfrost_gem.c | 4 ++-- drivers/gpu/drm/panfrost/panfrost_gem.h | 4 ++++ drivers/gpu/drm/panfrost/panfrost_perfcnt.c | 23 +++++++++++++-------- drivers/gpu/drm/panfrost/panfrost_perfcnt.h | 2 +- 5 files changed, 22 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c index 2630c5027c63..1c67ac434e10 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -445,7 +445,7 @@ panfrost_postclose(struct drm_device *dev, struct drm_file *file) { struct panfrost_file_priv *panfrost_priv = file->driver_priv;

• panfrost_perfcnt_close(panfrost_priv);

• panfrost_perfcnt_close(file); panfrost_job_close(panfrost_priv);

panfrost_mmu_pgtable_free(panfrost_priv); diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c index daf4c55a2863..92a95210a899 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.c +++ b/drivers/gpu/drm/panfrost/panfrost_gem.c @@ -46,7 +46,7 @@ static void panfrost_gem_free_object(struct drm_gem_object *obj) drm_gem_shmem_free_object(obj); } -static int panfrost_gem_open(struct drm_gem_object *obj, struct drm_file *file_priv) +int panfrost_gem_open(struct drm_gem_object *obj, struct drm_file *file_priv) { int ret; size_t size = obj->size; @@ -85,7 +85,7 @@ static int panfrost_gem_open(struct drm_gem_object *obj, struct drm_file *file_p return ret; } -static void panfrost_gem_close(struct drm_gem_object *obj, struct drm_file *file_priv) +void panfrost_gem_close(struct drm_gem_object *obj, struct drm_file *file_priv) { struct panfrost_gem_object *bo = to_panfrost_bo(obj); struct panfrost_file_priv *priv = file_priv->driver_priv; diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.h b/drivers/gpu/drm/panfrost/panfrost_gem.h index 50920819cc16..4b17e7308764 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.h +++ b/drivers/gpu/drm/panfrost/panfrost_gem.h @@ -45,6 +45,10 @@ panfrost_gem_create_with_handle(struct drm_file *file_priv, u32 flags, uint32_t *handle); +int panfrost_gem_open(struct drm_gem_object *obj, struct drm_file *file_priv); +void panfrost_gem_close(struct drm_gem_object *obj,

• 	struct drm_file *file_priv);
  

void panfrost_gem_shrinker_init(struct drm_device *dev); void panfrost_gem_shrinker_cleanup(struct drm_device *dev); diff --git a/drivers/gpu/drm/panfrost/panfrost_perfcnt.c b/drivers/gpu/drm/panfrost/panfrost_perfcnt.c index 2dba192bf198..2c04e858c50a 100644 --- a/drivers/gpu/drm/panfrost/panfrost_perfcnt.c +++ b/drivers/gpu/drm/panfrost/panfrost_perfcnt.c @@ -67,9 +67,10 @@ static int panfrost_perfcnt_dump_locked(struct panfrost_device *pfdev) } static int panfrost_perfcnt_enable_locked(struct panfrost_device *pfdev,

• 			  struct panfrost_file_priv *user,
  

• 			  struct drm_file *file_priv,
  		  unsigned int counterset)
  

{

• struct panfrost_file_priv *user = file_priv->driver_priv; struct panfrost_perfcnt *perfcnt = pfdev->perfcnt; struct drm_gem_shmem_object *bo; u32 cfg;

@@ -91,14 +92,14 @@ static int panfrost_perfcnt_enable_locked(struct panfrost_device *pfdev, perfcnt->bo = to_panfrost_bo(&bo->base); /* Map the perfcnt buf in the address space attached to file_priv. */

• ret = panfrost_mmu_map(perfcnt->bo);

• ret = panfrost_gem_open(&perfcnt->bo->base.base, file_priv); if (ret) goto err_put_bo;

perfcnt->buf = drm_gem_shmem_vmap(&bo->base); if (IS_ERR(perfcnt->buf)) { ret = PTR_ERR(perfcnt->buf);

• goto err_put_bo;
  

• goto err_close_bo;
  

  }

/* @@ -157,14 +158,17 @@ static int panfrost_perfcnt_enable_locked(struct panfrost_device *pfdev, err_vunmap: drm_gem_shmem_vunmap(&perfcnt->bo->base.base, perfcnt->buf); +err_close_bo:

• panfrost_gem_close(&perfcnt->bo->base.base, file_priv);

err_put_bo: drm_gem_object_put_unlocked(&bo->base); return ret; } static int panfrost_perfcnt_disable_locked(struct panfrost_device *pfdev,

• 			   struct panfrost_file_priv *user)
  

• 			   struct drm_file *file_priv)
  

{

• struct panfrost_file_priv *user = file_priv->driver_priv; struct panfrost_perfcnt *perfcnt = pfdev->perfcnt;

if (user != perfcnt->user) @@ -180,6 +184,7 @@ static int panfrost_perfcnt_disable_locked(struct panfrost_device *pfdev, perfcnt->user = NULL; drm_gem_shmem_vunmap(&perfcnt->bo->base.base, perfcnt->buf); perfcnt->buf = NULL;

• panfrost_gem_close(&perfcnt->bo->base.base, file_priv); drm_gem_object_put_unlocked(&perfcnt->bo->base.base); perfcnt->bo = NULL; pm_runtime_mark_last_busy(pfdev->dev);

@@ -191,7 +196,6 @@ static int panfrost_perfcnt_disable_locked(struct panfrost_device *pfdev, int panfrost_ioctl_perfcnt_enable(struct drm_device *dev, void *data, struct drm_file *file_priv) {

• struct panfrost_file_priv *pfile = file_priv->driver_priv; struct panfrost_device *pfdev = dev->dev_private; struct panfrost_perfcnt *perfcnt = pfdev->perfcnt; struct drm_panfrost_perfcnt_enable *req = data;

@@ -207,10 +211,10 @@ int panfrost_ioctl_perfcnt_enable(struct drm_device *dev, void *data, mutex_lock(&perfcnt->lock); if (req->enable)

• ret = panfrost_perfcnt_enable_locked(pfdev, pfile,
  

• ret = panfrost_perfcnt_enable_locked(pfdev, file_priv,
  			     req->counterset);
  

  else

• ret = panfrost_perfcnt_disable_locked(pfdev, pfile);
  

• ret = panfrost_perfcnt_disable_locked(pfdev, file_priv);
  

  mutex_unlock(&perfcnt->lock);

return ret; @@ -248,15 +252,16 @@ int panfrost_ioctl_perfcnt_dump(struct drm_device *dev, void *data, return ret; } -void panfrost_perfcnt_close(struct panfrost_file_priv *pfile) +void panfrost_perfcnt_close(struct drm_file *file_priv) {

• struct panfrost_file_priv *pfile = file_priv->driver_priv; struct panfrost_device *pfdev = pfile->pfdev; struct panfrost_perfcnt *perfcnt = pfdev->perfcnt;

pm_runtime_get_sync(pfdev->dev); mutex_lock(&perfcnt->lock); if (perfcnt->user == pfile)

• panfrost_perfcnt_disable_locked(pfdev, pfile);
  

• panfrost_perfcnt_disable_locked(pfdev, file_priv);
  

  mutex_unlock(&perfcnt->lock); pm_runtime_mark_last_busy(pfdev->dev); pm_runtime_put_autosuspend(pfdev->dev);

diff --git a/drivers/gpu/drm/panfrost/panfrost_perfcnt.h b/drivers/gpu/drm/panfrost/panfrost_perfcnt.h index 13b8fdaa1b43..8bbcf5f5fb33 100644 --- a/drivers/gpu/drm/panfrost/panfrost_perfcnt.h +++ b/drivers/gpu/drm/panfrost/panfrost_perfcnt.h @@ -9,7 +9,7 @@ void panfrost_perfcnt_sample_done(struct panfrost_device *pfdev); void panfrost_perfcnt_clean_cache_done(struct panfrost_device *pfdev); int panfrost_perfcnt_init(struct panfrost_device *pfdev); void panfrost_perfcnt_fini(struct panfrost_device *pfdev); -void panfrost_perfcnt_close(struct panfrost_file_priv *pfile); +void panfrost_perfcnt_close(struct drm_file *file_priv); int panfrost_ioctl_perfcnt_enable(struct drm_device *dev, void *data, struct drm_file *file_priv); int panfrost_ioctl_perfcnt_dump(struct drm_device *dev, void *data,