drm/panfrost: Open/close the perfcnt BO

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>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191129135908.2439529-6-boris.brezillon@collabora.com

diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
index 0a5d820..ca9ba75 100644 (file)
--- 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 fa1b273..fd766b1 100644 (file)
--- 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 5092081..4b17e73 100644 (file)
--- 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 83c57d3..33054b7 100644 (file)
--- a/drivers/gpu/drm/panfrost/panfrost_perfcnt.c
+++ b/drivers/gpu/drm/panfrost/panfrost_perfcnt.c
@@ -66,9 +66,10 @@ 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;
@@ -90,14 +91,14 @@ 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;
        }
 
        /*
@@ -156,14 +157,17 @@ 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)
@@ -179,6 +183,7 @@ 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);
@@ -190,7 +195,6 @@ 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;
@@ -206,10 +210,10 @@ 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;
@@ -247,15 +251,16 @@ out:
        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 13b8fda..8bbcf5f 100644 (file)
--- 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,