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authorSteven Price <steven.price@arm.com>2019-06-27 18:53:17 +0300
committerRob Herring <robh@kernel.org>2019-06-29 00:01:21 +0300
commit220df83a5394fbf7c1486ba7848794b7b351d598 (patch)
tree71f9fea2ccf207d8615de5803ee31424062b1e0b /drivers/gpu/drm/drm_gem.c
parent52500de68fbb0c11403fd8db13aace99e5ef4f40 (diff)
downloadlinux-220df83a5394fbf7c1486ba7848794b7b351d598.tar.xz
drm/gem: Rename drm_gem_dumb_map_offset() to drm_gem_map_offset()
drm_gem_dumb_map_offset() is a useful helper for non-dumb clients, so rename it to remove the _dumb and add a comment that it can be used by shmem clients. Signed-off-by: Steven Price <steven.price@arm.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190627155318.38053-2-steven.price@arm.com
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
-rw-r--r--drivers/gpu/drm/drm_gem.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index e6c12c6ec728..376f85d8690e 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -297,7 +297,7 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle)
EXPORT_SYMBOL(drm_gem_handle_delete);
/**
- * drm_gem_dumb_map_offset - return the fake mmap offset for a gem object
+ * drm_gem_map_offset - return the fake mmap offset for a gem object
* @file: drm file-private structure containing the gem object
* @dev: corresponding drm_device
* @handle: gem object handle
@@ -306,10 +306,14 @@ EXPORT_SYMBOL(drm_gem_handle_delete);
* This implements the &drm_driver.dumb_map_offset kms driver callback for
* drivers which use gem to manage their backing storage.
*
+ * It can also be used by drivers using GEM BO implementations which
+ * have same restriction that imported objects cannot be mapped. The
+ * shmem backend is one example.
+ *
* Returns:
* 0 on success or a negative error code on failure.
*/
-int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
+int drm_gem_map_offset(struct drm_file *file, struct drm_device *dev,
u32 handle, u64 *offset)
{
struct drm_gem_object *obj;
@@ -335,7 +339,7 @@ out:
return ret;
}
-EXPORT_SYMBOL_GPL(drm_gem_dumb_map_offset);
+EXPORT_SYMBOL_GPL(drm_gem_map_offset);
/**
* drm_gem_dumb_destroy - dumb fb callback helper for gem based drivers