drm/gem: create drm_gem_dumb_destroy

All the gem based kms drivers really want the same function to
destroy a dumb framebuffer backing storage object.

So give it to them and roll it out in all drivers.

This still leaves the option open for kms drivers which don't use GEM
for backing storage, but it does decently simplify matters for gem
drivers.

Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org>
Cc: Ben Skeggs <skeggsb@gmail.com>
Reviwed-by: Rob Clark <robdclark@gmail.com>
Cc: Alex Deucher <alexdeucher@gmail.com>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>

44 files changed, 33 insertions, 186 deletions

diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index df0d0a08097a..a144fb044852 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -216,7 +216,7 @@ static struct drm_driver driver = {
         .gem_free_object = ast_gem_free_object,
         .dumb_create = ast_dumb_create,
         .dumb_map_offset = ast_dumb_mmap_offset,
-        .dumb_destroy = ast_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
 
 };
 
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 622d4ae7eb9e..796dbb212a41 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -322,9 +322,6 @@ ast_bo(struct ttm_buffer_object *bo)
 extern int ast_dumb_create(struct drm_file *file,
                            struct drm_device *dev,
                            struct drm_mode_create_dumb *args);
-extern int ast_dumb_destroy(struct drm_file *file,
-                            struct drm_device *dev,
-                            uint32_t handle);
 
 extern int ast_gem_init_object(struct drm_gem_object *obj);
 extern void ast_gem_free_object(struct drm_gem_object *obj);
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index c195dc2abc09..7f6152d374ca 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -449,13 +449,6 @@ int ast_dumb_create(struct drm_file *file,
         return 0;
 }
 
-int ast_dumb_destroy(struct drm_file *file,
-                     struct drm_device *dev,
-                     uint32_t handle)
-{
-        return drm_gem_handle_delete(file, handle);
-}
-
 int ast_gem_init_object(struct drm_gem_object *obj)
 {
         BUG();
diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 8ecb601152ef..d35d99c15f84 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -102,7 +102,7 @@ static struct drm_driver driver = {
         .gem_free_object = cirrus_gem_free_object,
         .dumb_create = cirrus_dumb_create,
         .dumb_map_offset = cirrus_dumb_mmap_offset,
-        .dumb_destroy = cirrus_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
 };
 
 static struct pci_driver cirrus_pci_driver = {
diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.h b/drivers/gpu/drm/cirrus/cirrus_drv.h
index bae55609e6c3..9b0bb9184afd 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.h
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.h
@@ -203,9 +203,6 @@ int cirrus_gem_create(struct drm_device *dev,
 int cirrus_dumb_create(struct drm_file *file,
                     struct drm_device *dev,
                        struct drm_mode_create_dumb *args);
-int cirrus_dumb_destroy(struct drm_file *file,
-                     struct drm_device *dev,
-                        uint32_t handle);
 
 int cirrus_framebuffer_init(struct drm_device *dev,
                            struct cirrus_framebuffer *gfb,
diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c
index 3a7a0efe3675..f130a533a512 100644
--- a/drivers/gpu/drm/cirrus/cirrus_main.c
+++ b/drivers/gpu/drm/cirrus/cirrus_main.c
@@ -255,13 +255,6 @@ int cirrus_dumb_create(struct drm_file *file,
         return 0;
 }
 
-int cirrus_dumb_destroy(struct drm_file *file,
-                     struct drm_device *dev,
-                     uint32_t handle)
-{
-        return drm_gem_handle_delete(file, handle);
-}
-
 int cirrus_gem_init_object(struct drm_gem_object *obj)
 {
         BUG();
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 1f7657286f04..9ab038c8dd5f 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -244,6 +244,20 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle)
 EXPORT_SYMBOL(drm_gem_handle_delete);
 
 /**
+ * drm_gem_dumb_destroy - dumb fb callback helper for gem based drivers
+ * 
+ * This implements the ->dumb_destroy kms driver callback for drivers which use
+ * gem to manage their backing storage.
+ */
+int drm_gem_dumb_destroy(struct drm_file *file,
+                         struct drm_device *dev,
+                         uint32_t handle)
+{
+        return drm_gem_handle_delete(file, handle);
+}
+EXPORT_SYMBOL(drm_gem_dumb_destroy);
+
+/**
  * Create a handle for this object. This adds a handle reference
  * to the object, which includes a regular reference count. Callers
  * will likely want to dereference the object afterwards.
diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
index 847f09117666..0a4f80574eb4 100644
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -281,16 +281,6 @@ int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma)
 }
 EXPORT_SYMBOL_GPL(drm_gem_cma_mmap);
 
-/*
- * drm_gem_cma_dumb_destroy - (struct drm_driver)->dumb_destroy callback function
- */
-int drm_gem_cma_dumb_destroy(struct drm_file *file_priv,
-                struct drm_device *drm, unsigned int handle)
-{
-        return drm_gem_handle_delete(file_priv, handle);
-}
-EXPORT_SYMBOL_GPL(drm_gem_cma_dumb_destroy);
-
 #ifdef CONFIG_DEBUG_FS
 void drm_gem_cma_describe(struct drm_gem_cma_object *cma_obj, struct seq_file *m)
 {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index ca2729a85129..21fc28ae5e6e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -271,7 +271,7 @@ static struct drm_driver exynos_drm_driver = {
         .gem_vm_ops             = &exynos_drm_gem_vm_ops,
         .dumb_create            = exynos_drm_gem_dumb_create,
         .dumb_map_offset        = exynos_drm_gem_dumb_map_offset,
-        .dumb_destroy           = exynos_drm_gem_dumb_destroy,
+        .dumb_destroy           = drm_gem_dumb_destroy,
         .prime_handle_to_fd     = drm_gem_prime_handle_to_fd,
         .prime_fd_to_handle     = drm_gem_prime_fd_to_handle,
         .gem_prime_export       = exynos_dmabuf_prime_export,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index be32db1ab290..b904633863e8 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -717,26 +717,6 @@ unlock:
         return ret;
 }
 
-int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv,
-                                struct drm_device *dev,
-                                unsigned int handle)
-{
-        int ret;
-
-        /*
-         * obj->refcount and obj->handle_count are decreased and
-         * if both them are 0 then exynos_drm_gem_free_object()
-         * would be called by callback to release resources.
-         */
-        ret = drm_gem_handle_delete(file_priv, handle);
-        if (ret < 0) {
-                DRM_ERROR("failed to delete drm_gem_handle.\n");
-                return ret;
-        }
-
-        return 0;
-}
-
 int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
         struct drm_gem_object *obj = vma->vm_private_data;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
index 468766bee450..09555afdfe9c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
@@ -151,15 +151,6 @@ int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
                                    struct drm_device *dev, uint32_t handle,
                                    uint64_t *offset);
 
-/*
- * destroy memory region allocated.
- *      - a gem handle and physical memory region pointed by a gem object
- *      would be released by drm_gem_handle_delete().
- */
-int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv,
-                                struct drm_device *dev,
-                                unsigned int handle);
-
 /* page fault handler and mmap fault address(virtual) to physical memory. */
 int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 
diff --git a/drivers/gpu/drm/gma500/gem.c b/drivers/gpu/drm/gma500/gem.c
index 2f77bea30b11..10ae8c52d06f 100644
--- a/drivers/gpu/drm/gma500/gem.c
+++ b/drivers/gpu/drm/gma500/gem.c
@@ -162,23 +162,6 @@ int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 }
 
 /**
- *      psb_gem_dumb_destroy    -       destroy a dumb buffer
- *      @file: client file
- *      @dev: our DRM device
- *      @handle: the object handle
- *
- *      Destroy a handle that was created via psb_gem_dumb_create, at least
- *      we hope it was created that way. i915 seems to assume the caller
- *      does the checking but that might be worth review ! FIXME
- */
-int psb_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
-                        uint32_t handle)
-{
-        /* No special work needed, drop the reference and see what falls out */
-        return drm_gem_handle_delete(file, handle);
-}
-
-/**
  *      psb_gem_fault           -       pagefault handler for GEM objects
  *      @vma: the VMA of the GEM object
  *      @vmf: fault detail
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index bddea5807442..ed06d5ce3757 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -652,7 +652,7 @@ static struct drm_driver driver = {
         .gem_vm_ops = &psb_gem_vm_ops,
         .dumb_create = psb_gem_dumb_create,
         .dumb_map_offset = psb_gem_dumb_map_gtt,
-        .dumb_destroy = psb_gem_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
         .fops = &psb_gem_fops,
         .name = DRIVER_NAME,
         .desc = DRIVER_DESC,
diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
index 6053b8abcd12..984cacfcbaf2 100644
--- a/drivers/gpu/drm/gma500/psb_drv.h
+++ b/drivers/gpu/drm/gma500/psb_drv.h
@@ -838,8 +838,6 @@ extern int psb_gem_get_aperture(struct drm_device *dev, void *data,
                         struct drm_file *file);
 extern int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
                         struct drm_mode_create_dumb *args);
-extern int psb_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
-                        uint32_t handle);
 extern int psb_gem_dumb_map_gtt(struct drm_file *file, struct drm_device *dev,
                         uint32_t handle, uint64_t *offset);
 extern int psb_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index b07362f2675e..cca12db6dbb7 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1163,7 +1163,7 @@ static struct drm_driver driver = {
 
         .dumb_create = i915_gem_dumb_create,
         .dumb_map_offset = i915_gem_mmap_gtt,
-        .dumb_destroy = i915_gem_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
         .ioctls = i915_ioctls,
         .fops = &i915_driver_fops,
         .name = DRIVER_NAME,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index cef35d3ab37b..5cb3e4d34230 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1732,8 +1732,6 @@ int i915_gem_dumb_create(struct drm_file *file_priv,
                          struct drm_mode_create_dumb *args);
 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
                       uint32_t handle, uint64_t *offset);
-int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
-                          uint32_t handle);
 /**
  * Returns true if seq1 is later than seq2.
  */
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 8673a000a373..2aa0894b59cd 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -247,13 +247,6 @@ i915_gem_dumb_create(struct drm_file *file,
                                args->size, &args->handle);
 }
 
-int i915_gem_dumb_destroy(struct drm_file *file,
-                          struct drm_device *dev,
-                          uint32_t handle)
-{
-        return drm_gem_handle_delete(file, handle);
-}
-
 /**
  * Creates a new mm object and returns a handle to it.
  */
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 122b571ccc7c..bd9196478735 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -104,7 +104,7 @@ static struct drm_driver driver = {
         .gem_free_object = mgag200_gem_free_object,
         .dumb_create = mgag200_dumb_create,
         .dumb_map_offset = mgag200_dumb_mmap_offset,
-        .dumb_destroy = mgag200_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
 };
 
 static struct pci_driver mgag200_pci_driver = {
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index 12e2499d9352..baaae19332e2 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -264,9 +264,6 @@ int mgag200_gem_init_object(struct drm_gem_object *obj);
 int mgag200_dumb_create(struct drm_file *file,
                         struct drm_device *dev,
                         struct drm_mode_create_dumb *args);
-int mgag200_dumb_destroy(struct drm_file *file,
-                         struct drm_device *dev,
-                         uint32_t handle);
 void mgag200_gem_free_object(struct drm_gem_object *obj);
 int
 mgag200_dumb_mmap_offset(struct drm_file *file,
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 1a75ea395b33..0f8b861b10b3 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -310,13 +310,6 @@ int mgag200_dumb_create(struct drm_file *file,
         return 0;
 }
 
-int mgag200_dumb_destroy(struct drm_file *file,
-                     struct drm_device *dev,
-                     uint32_t handle)
-{
-        return drm_gem_handle_delete(file, handle);
-}
-
 int mgag200_gem_init_object(struct drm_gem_object *obj)
 {
         BUG();
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 7a8caa126db6..c8ffba24720a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -681,13 +681,6 @@ nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 }
 
 int
-nouveau_display_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
-                             uint32_t handle)
-{
-        return drm_gem_handle_delete(file_priv, handle);
-}
-
-int
 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
                                 struct drm_device *dev,
                                 uint32_t handle, uint64_t *poffset)
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h b/drivers/gpu/drm/nouveau/nouveau_display.h
index 1ea3e4734b62..185e74132a6d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.h
+++ b/drivers/gpu/drm/nouveau/nouveau_display.h
@@ -68,8 +68,6 @@ int  nouveau_display_dumb_create(struct drm_file *, struct drm_device *,
                                  struct drm_mode_create_dumb *args);
 int  nouveau_display_dumb_map_offset(struct drm_file *, struct drm_device *,
                                      u32 handle, u64 *offset);
-int  nouveau_display_dumb_destroy(struct drm_file *, struct drm_device *,
-                                  u32 handle);
 
 void nouveau_hdmi_mode_set(struct drm_encoder *, struct drm_display_mode *);
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index e990327d117a..a900cde497a6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -715,7 +715,7 @@ driver = {
 
         .dumb_create = nouveau_display_dumb_create,
         .dumb_map_offset = nouveau_display_dumb_map_offset,
-        .dumb_destroy = nouveau_display_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
 
         .name = DRIVER_NAME,
         .desc = DRIVER_DESC,
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index a3004f12b9a3..1ddd1a15764d 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -633,7 +633,7 @@ static struct drm_driver omap_drm_driver = {
                 .gem_vm_ops = &omap_gem_vm_ops,
                 .dumb_create = omap_gem_dumb_create,
                 .dumb_map_offset = omap_gem_dumb_map_offset,
-                .dumb_destroy = omap_gem_dumb_destroy,
+                .dumb_destroy = drm_gem_dumb_destroy,
                 .ioctls = ioctls,
                 .num_ioctls = DRM_OMAP_NUM_IOCTLS,
                 .fops = &omapdriver_fops,
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
index 14f17da2ce25..f2ba425d80dd 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.h
+++ b/drivers/gpu/drm/omapdrm/omap_drv.h
@@ -225,8 +225,6 @@ int omap_gem_init_object(struct drm_gem_object *obj);
 void *omap_gem_vaddr(struct drm_gem_object *obj);
 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
                 uint32_t handle, uint64_t *offset);
-int omap_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
-                uint32_t handle);
 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
                 struct drm_mode_create_dumb *args);
 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c
index f90531fc00c9..b1f19702550f 100644
--- a/drivers/gpu/drm/omapdrm/omap_gem.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem.c
@@ -629,21 +629,6 @@ int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 }
 
 /**
- * omap_gem_dumb_destroy        -       destroy a dumb buffer
- * @file: client file
- * @dev: our DRM device
- * @handle: the object handle
- *
- * Destroy a handle that was created via omap_gem_dumb_create.
- */
-int omap_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
-                uint32_t handle)
-{
-        /* No special work needed, drop the reference and see what falls out */
-        return drm_gem_handle_delete(file, handle);
-}
-
-/**
  * omap_gem_dumb_map    -       buffer mapping for dumb interface
  * @file: our drm client file
  * @dev: drm device
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index df0b577a6608..48f2dfdeabcb 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -221,7 +221,7 @@ static struct drm_driver qxl_driver = {
 
         .dumb_create = qxl_mode_dumb_create,
         .dumb_map_offset = qxl_mode_dumb_mmap,
-        .dumb_destroy = qxl_mode_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
 #if defined(CONFIG_DEBUG_FS)
         .debugfs_init = qxl_debugfs_init,
         .debugfs_cleanup = qxl_debugfs_takedown,
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index aacb791464a3..57cb7a8e6fb5 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -418,9 +418,6 @@ int qxl_bo_kmap(struct qxl_bo *bo, void **ptr);
 int qxl_mode_dumb_create(struct drm_file *file_priv,
                          struct drm_device *dev,
                          struct drm_mode_create_dumb *args);
-int qxl_mode_dumb_destroy(struct drm_file *file_priv,
-                          struct drm_device *dev,
-                          uint32_t handle);
 int qxl_mode_dumb_mmap(struct drm_file *filp,
                        struct drm_device *dev,
                        uint32_t handle, uint64_t *offset_p);
diff --git a/drivers/gpu/drm/qxl/qxl_dumb.c b/drivers/gpu/drm/qxl/qxl_dumb.c
index 847c4ee798f7..d34bb4130ff0 100644
--- a/drivers/gpu/drm/qxl/qxl_dumb.c
+++ b/drivers/gpu/drm/qxl/qxl_dumb.c
@@ -68,13 +68,6 @@ int qxl_mode_dumb_create(struct drm_file *file_priv,
         return 0;
 }
 
-int qxl_mode_dumb_destroy(struct drm_file *file_priv,
-                             struct drm_device *dev,
-                             uint32_t handle)
-{
-        return drm_gem_handle_delete(file_priv, handle);
-}
-
 int qxl_mode_dumb_mmap(struct drm_file *file_priv,
                        struct drm_device *dev,
                        uint32_t handle, uint64_t *offset_p)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 2f08219c39b6..19066d1dcb7d 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -492,9 +492,6 @@ int radeon_mode_dumb_create(struct drm_file *file_priv,
 int radeon_mode_dumb_mmap(struct drm_file *filp,
                           struct drm_device *dev,
                           uint32_t handle, uint64_t *offset_p);
-int radeon_mode_dumb_destroy(struct drm_file *file_priv,
-                             struct drm_device *dev,
-                             uint32_t handle);
 
 /*
  * Semaphores.
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index cb7f1a8c5a4a..4071fe70c416 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -118,9 +118,6 @@ int radeon_mode_dumb_mmap(struct drm_file *filp,
 int radeon_mode_dumb_create(struct drm_file *file_priv,
                             struct drm_device *dev,
                             struct drm_mode_create_dumb *args);
-int radeon_mode_dumb_destroy(struct drm_file *file_priv,
-                             struct drm_device *dev,
-                             uint32_t handle);
 struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj);
 struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev,
                                                         size_t size,
@@ -421,7 +418,7 @@ static struct drm_driver kms_driver = {
         .gem_close_object = radeon_gem_object_close,
         .dumb_create = radeon_mode_dumb_create,
         .dumb_map_offset = radeon_mode_dumb_mmap,
-        .dumb_destroy = radeon_mode_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
         .fops = &radeon_driver_kms_fops,
 
         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index aa796031ab65..dce99c8a5835 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -570,13 +570,6 @@ int radeon_mode_dumb_create(struct drm_file *file_priv,
         return 0;
 }
 
-int radeon_mode_dumb_destroy(struct drm_file *file_priv,
-                             struct drm_device *dev,
-                             uint32_t handle)
-{
-        return drm_gem_handle_delete(file_priv, handle);
-}
-
 #if defined(CONFIG_DEBUG_FS)
 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
 {
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index dc0fe09b2ba1..5069d9c234bb 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -258,7 +258,7 @@ static struct drm_driver rcar_du_driver = {
         .gem_prime_mmap         = drm_gem_cma_prime_mmap,
         .dumb_create            = rcar_du_dumb_create,
         .dumb_map_offset        = drm_gem_cma_dumb_map_offset,
-        .dumb_destroy           = drm_gem_cma_dumb_destroy,
+        .dumb_destroy           = drm_gem_dumb_destroy,
         .fops                   = &rcar_du_fops,
         .name                   = "rcar-du",
         .desc                   = "Renesas R-Car Display Unit",
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
index 5f83f9a3ef59..7f2ea1a5a45f 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
@@ -285,7 +285,7 @@ static struct drm_driver shmob_drm_driver = {
         .gem_prime_mmap         = drm_gem_cma_prime_mmap,
         .dumb_create            = drm_gem_cma_dumb_create,
         .dumb_map_offset        = drm_gem_cma_dumb_map_offset,
-        .dumb_destroy           = drm_gem_cma_dumb_destroy,
+        .dumb_destroy           = drm_gem_dumb_destroy,
         .fops                   = &shmob_drm_fops,
         .name                   = "shmob-drm",
         .desc                   = "Renesas SH Mobile DRM",
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 40b71da5a214..14801c2235ae 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -519,7 +519,7 @@ static struct drm_driver tilcdc_driver = {
         .gem_vm_ops         = &drm_gem_cma_vm_ops,
         .dumb_create        = drm_gem_cma_dumb_create,
         .dumb_map_offset    = drm_gem_cma_dumb_map_offset,
-        .dumb_destroy       = drm_gem_cma_dumb_destroy,
+        .dumb_destroy       = drm_gem_dumb_destroy,
 #ifdef CONFIG_DEBUG_FS
         .debugfs_init       = tilcdc_debugfs_init,
         .debugfs_cleanup    = tilcdc_debugfs_cleanup,
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index c0770dbba74a..bb0af58c769a 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -84,7 +84,7 @@ static struct drm_driver driver = {
 
         .dumb_create = udl_dumb_create,
         .dumb_map_offset = udl_gem_mmap,
-        .dumb_destroy = udl_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
         .fops = &udl_driver_fops,
 
         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index cc6d90f28c71..56aec9409fa3 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -114,8 +114,6 @@ int udl_dumb_create(struct drm_file *file_priv,
                     struct drm_mode_create_dumb *args);
 int udl_gem_mmap(struct drm_file *file_priv, struct drm_device *dev,
                  uint32_t handle, uint64_t *offset);
-int udl_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
-                     uint32_t handle);
 
 int udl_gem_init_object(struct drm_gem_object *obj);
 void udl_gem_free_object(struct drm_gem_object *gem_obj);
diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c
index 2a4cb2f83b36..b5e3b8038253 100644
--- a/drivers/gpu/drm/udl/udl_gem.c
+++ b/drivers/gpu/drm/udl/udl_gem.c
@@ -66,12 +66,6 @@ int udl_dumb_create(struct drm_file *file,
                               args->size, &args->handle);
 }
 
-int udl_dumb_destroy(struct drm_file *file, struct drm_device *dev,
-                     uint32_t handle)
-{
-        return drm_gem_handle_delete(file, handle);
-}
-
 int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 {
         int ret;
diff --git a/drivers/gpu/host1x/drm/drm.c b/drivers/gpu/host1x/drm/drm.c
index e184b00faacd..87aa09bf7ba8 100644
--- a/drivers/gpu/host1x/drm/drm.c
+++ b/drivers/gpu/host1x/drm/drm.c
@@ -633,7 +633,7 @@ struct drm_driver tegra_drm_driver = {
         .gem_vm_ops = &tegra_bo_vm_ops,
         .dumb_create = tegra_bo_dumb_create,
         .dumb_map_offset = tegra_bo_dumb_map_offset,
-        .dumb_destroy = tegra_bo_dumb_destroy,
+        .dumb_destroy = drm_gem_dumb_destroy,
 
         .ioctls = tegra_drm_ioctls,
         .num_ioctls = ARRAY_SIZE(tegra_drm_ioctls),
diff --git a/drivers/gpu/host1x/drm/gem.c b/drivers/gpu/host1x/drm/gem.c
index bc323b3dbe4d..3c35622c9f15 100644
--- a/drivers/gpu/host1x/drm/gem.c
+++ b/drivers/gpu/host1x/drm/gem.c
@@ -261,9 +261,3 @@ int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma)
 
         return ret;
 }
-
-int tegra_bo_dumb_destroy(struct drm_file *file, struct drm_device *drm,
-                          unsigned int handle)
-{
-        return drm_gem_handle_delete(file, handle);
-}
diff --git a/drivers/gpu/host1x/drm/gem.h b/drivers/gpu/host1x/drm/gem.h
index 34de2b486eb7..2e93b0379da8 100644
--- a/drivers/gpu/host1x/drm/gem.h
+++ b/drivers/gpu/host1x/drm/gem.h
@@ -49,8 +49,6 @@ int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
                          struct drm_mode_create_dumb *args);
 int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
                              uint32_t handle, uint64_t *offset);
-int tegra_bo_dumb_destroy(struct drm_file *file, struct drm_device *drm,
-                          unsigned int handle);
 
 int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);
 
diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 9854a1daf606..a827858af944 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -797,7 +797,7 @@ static struct drm_driver imx_drm_driver = {
         .gem_vm_ops             = &drm_gem_cma_vm_ops,
         .dumb_create            = drm_gem_cma_dumb_create,
         .dumb_map_offset        = drm_gem_cma_dumb_map_offset,
-        .dumb_destroy           = drm_gem_cma_dumb_destroy,
+        .dumb_destroy           = drm_gem_dumb_destroy,
 
         .get_vblank_counter     = drm_vblank_count,
         .enable_vblank          = imx_drm_enable_vblank,
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 4b518e05d293..a029dea13f48 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1548,6 +1548,9 @@ extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **
 extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages);
 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
 
+int drm_gem_dumb_destroy(struct drm_file *file,
+                         struct drm_device *dev,
+                         uint32_t handle);
 
 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index c34f27f80bcc..89b4d7db1ebd 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -30,14 +30,6 @@ int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
 /* set vm_flags and we can change the vm attribute to other one at here. */
 int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);
 
-/*
- * destroy memory region allocated.
- *      - a gem handle and physical memory region pointed by a gem object
- *      would be released by drm_gem_handle_delete().
- */
-int drm_gem_cma_dumb_destroy(struct drm_file *file_priv,
-                struct drm_device *drm, unsigned int handle);
-
 /* allocate physical memory. */
 struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
                 unsigned int size);