drm/shmem-helper: Switch to use drm_* debug helpers

Ease debugging of a multi-GPU system by using drm_WARN_*() and
drm_dbg_kms() helpers that print out DRM device name corresponding
to shmem GEM.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://lore.kernel.org/all/20230108210445.3948344-6-dmitry.osipenko@collabora.com/

drivers/gpu/drm/drm_gem_shmem_helper.c

@@ -141,7 +141,7 @@ void drm_gem_shmem_free(struct drm_gem_shmem_object *shmem)
 {
 	struct drm_gem_object *obj = &shmem->base;
 
-	WARN_ON(shmem->vmap_use_count);
+	drm_WARN_ON(obj->dev, shmem->vmap_use_count);
 
 	if (obj->import_attach) {
 		drm_prime_gem_destroy(obj, shmem->sgt);
@@ -156,7 +156,7 @@ void drm_gem_shmem_free(struct drm_gem_shmem_object *shmem)
 			drm_gem_shmem_put_pages(shmem);
 	}
 
-	WARN_ON(shmem->pages_use_count);
+	drm_WARN_ON(obj->dev, shmem->pages_use_count);
 
 	drm_gem_object_release(obj);
 	mutex_destroy(&shmem->pages_lock);
@@ -175,7 +175,8 @@ static int drm_gem_shmem_get_pages_locked(struct drm_gem_shmem_object *shmem)
 
 	pages = drm_gem_get_pages(obj);
 	if (IS_ERR(pages)) {
-		DRM_DEBUG_KMS("Failed to get pages (%ld)\n", PTR_ERR(pages));
+		drm_dbg_kms(obj->dev, "Failed to get pages (%ld)\n",
+			    PTR_ERR(pages));
 		shmem->pages_use_count = 0;
 		return PTR_ERR(pages);
 	}
@@ -207,9 +208,10 @@ static int drm_gem_shmem_get_pages_locked(struct drm_gem_shmem_object *shmem)
  */
 int drm_gem_shmem_get_pages(struct drm_gem_shmem_object *shmem)
 {
+	struct drm_gem_object *obj = &shmem->base;
 	int ret;
 
-	WARN_ON(shmem->base.import_attach);
+	drm_WARN_ON(obj->dev, obj->import_attach);
 
 	ret = mutex_lock_interruptible(&shmem->pages_lock);
 	if (ret)
@@ -225,7 +227,7 @@ static void drm_gem_shmem_put_pages_locked(struct drm_gem_shmem_object *shmem)
 {
 	struct drm_gem_object *obj = &shmem->base;
 
-	if (WARN_ON_ONCE(!shmem->pages_use_count))
+	if (drm_WARN_ON_ONCE(obj->dev, !shmem->pages_use_count))
 		return;
 
 	if (--shmem->pages_use_count > 0)
@@ -268,7 +270,9 @@ EXPORT_SYMBOL(drm_gem_shmem_put_pages);
  */
 int drm_gem_shmem_pin(struct drm_gem_shmem_object *shmem)
 {
-	WARN_ON(shmem->base.import_attach);
+	struct drm_gem_object *obj = &shmem->base;
+
+	drm_WARN_ON(obj->dev, obj->import_attach);
 
 	return drm_gem_shmem_get_pages(shmem);
 }
@@ -283,7 +287,9 @@ EXPORT_SYMBOL(drm_gem_shmem_pin);
  */
 void drm_gem_shmem_unpin(struct drm_gem_shmem_object *shmem)
 {
-	WARN_ON(shmem->base.import_attach);
+	struct drm_gem_object *obj = &shmem->base;
+
+	drm_WARN_ON(obj->dev, obj->import_attach);
 
 	drm_gem_shmem_put_pages(shmem);
 }
@@ -303,7 +309,7 @@ static int drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object *shmem,
 	if (obj->import_attach) {
 		ret = dma_buf_vmap(obj->import_attach->dmabuf, map);
 		if (!ret) {
-			if (WARN_ON(map->is_iomem)) {
+			if (drm_WARN_ON(obj->dev, map->is_iomem)) {
 				dma_buf_vunmap(obj->import_attach->dmabuf, map);
 				ret = -EIO;
 				goto err_put_pages;
@@ -328,7 +334,7 @@ static int drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object *shmem,
 	}
 
 	if (ret) {
-		DRM_DEBUG_KMS("Failed to vmap pages, error %d\n", ret);
+		drm_dbg_kms(obj->dev, "Failed to vmap pages, error %d\n", ret);
 		goto err_put_pages;
 	}
 
@@ -378,7 +384,7 @@ static void drm_gem_shmem_vunmap_locked(struct drm_gem_shmem_object *shmem,
 {
 	struct drm_gem_object *obj = &shmem->base;
 
-	if (WARN_ON_ONCE(!shmem->vmap_use_count))
+	if (drm_WARN_ON_ONCE(obj->dev, !shmem->vmap_use_count))
 		return;
 
 	if (--shmem->vmap_use_count > 0)
@@ -461,7 +467,7 @@ void drm_gem_shmem_purge_locked(struct drm_gem_shmem_object *shmem)
 	struct drm_gem_object *obj = &shmem->base;
 	struct drm_device *dev = obj->dev;
 
-	WARN_ON(!drm_gem_shmem_is_purgeable(shmem));
+	drm_WARN_ON(obj->dev, !drm_gem_shmem_is_purgeable(shmem));
 
 	dma_unmap_sgtable(dev->dev, shmem->sgt, DMA_BIDIRECTIONAL, 0);
 	sg_free_table(shmem->sgt);
@@ -550,7 +556,7 @@ static vm_fault_t drm_gem_shmem_fault(struct vm_fault *vmf)
 	mutex_lock(&shmem->pages_lock);
 
 	if (page_offset >= num_pages ||
-	    WARN_ON_ONCE(!shmem->pages) ||
+	    drm_WARN_ON_ONCE(obj->dev, !shmem->pages) ||
 	    shmem->madv < 0) {
 		ret = VM_FAULT_SIGBUS;
 	} else {
@@ -569,7 +575,7 @@ static void drm_gem_shmem_vm_open(struct vm_area_struct *vma)
 	struct drm_gem_object *obj = vma->vm_private_data;
 	struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
 
-	WARN_ON(shmem->base.import_attach);
+	drm_WARN_ON(obj->dev, obj->import_attach);
 
 	mutex_lock(&shmem->pages_lock);
 
@@ -578,7 +584,7 @@ static void drm_gem_shmem_vm_open(struct vm_area_struct *vma)
 	 * mmap'd, vm_open() just grabs an additional reference for the new
 	 * mm the vma is getting copied into (ie. on fork()).
 	 */
-	if (!WARN_ON_ONCE(!shmem->pages_use_count))
+	if (!drm_WARN_ON_ONCE(obj->dev, !shmem->pages_use_count))
 		shmem->pages_use_count++;
 
 	mutex_unlock(&shmem->pages_lock);
@@ -672,7 +678,7 @@ struct sg_table *drm_gem_shmem_get_sg_table(struct drm_gem_shmem_object *shmem)
 {
 	struct drm_gem_object *obj = &shmem->base;
 
-	WARN_ON(shmem->base.import_attach);
+	drm_WARN_ON(obj->dev, obj->import_attach);
 
 	return drm_prime_pages_to_sg(obj->dev, shmem->pages, obj->size >> PAGE_SHIFT);
 }
@@ -687,7 +693,7 @@ static struct sg_table *drm_gem_shmem_get_pages_sgt_locked(struct drm_gem_shmem_
 	if (shmem->sgt)
 		return shmem->sgt;
 
-	WARN_ON(obj->import_attach);
+	drm_WARN_ON(obj->dev, obj->import_attach);
 
 	ret = drm_gem_shmem_get_pages_locked(shmem);
 	if (ret)