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drm: Add default instance for VRAM MM callback functions

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VRAM MM is most likely be used with GEM VRAM. The latter now provides the
required instance of struct drm_vram_mm_funcs for drivers to use.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-8-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Thomas Zimmermann 2019-05-08 10:26:17 +02:00 committed by Gerd Hoffmann
parent 96352eca5c
commit 5c9dcacfe5
2 changed files with 17 additions and 0 deletions
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14
drivers/gpu/drm/drm_gem_vram_helper.c
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@ -3,6 +3,7 @@
#include <drm/drm_gem_vram_helper.h> #include <drm/drm_gem_vram_helper.h>
#include <drm/drm_mode.h> #include <drm/drm_mode.h>
#include <drm/drm_prime.h> #include <drm/drm_prime.h>
#include <drm/drm_vram_mm_helper.h>
#include <drm/ttm/ttm_page_alloc.h> #include <drm/ttm/ttm_page_alloc.h>
/** /**
@ -524,6 +525,19 @@ int drm_gem_vram_bo_driver_verify_access(struct ttm_buffer_object *bo,
} }
EXPORT_SYMBOL(drm_gem_vram_bo_driver_verify_access); EXPORT_SYMBOL(drm_gem_vram_bo_driver_verify_access);
/**
* drm_gem_vram_mm_funcs - Functions for &struct drm_vram_mm
*
* Most users of @struct drm_gem_vram_object will also use
* @struct drm_vram_mm. This instance of &struct drm_vram_mm_funcs
* can be used to connect both.
*/
const struct drm_vram_mm_funcs drm_gem_vram_mm_funcs = {
.evict_flags = drm_gem_vram_bo_driver_evict_flags,
.verify_access = drm_gem_vram_bo_driver_verify_access
};
EXPORT_SYMBOL(drm_gem_vram_mm_funcs);
/* /*
* Helpers for struct drm_driver * Helpers for struct drm_driver
*/ */

3
include/drm/drm_gem_vram_helper.h
View File

@ -9,6 +9,7 @@
#include <linux/kernel.h> /* for container_of() */ #include <linux/kernel.h> /* for container_of() */
struct drm_mode_create_dumb; struct drm_mode_create_dumb;
struct drm_vram_mm_funcs;
struct filp; struct filp;
#define DRM_GEM_VRAM_PL_FLAG_VRAM TTM_PL_FLAG_VRAM #define DRM_GEM_VRAM_PL_FLAG_VRAM TTM_PL_FLAG_VRAM
@ -107,6 +108,8 @@ void drm_gem_vram_bo_driver_evict_flags(struct ttm_buffer_object *bo,
int drm_gem_vram_bo_driver_verify_access(struct ttm_buffer_object *bo, int drm_gem_vram_bo_driver_verify_access(struct ttm_buffer_object *bo,
struct file *filp); struct file *filp);
extern const struct drm_vram_mm_funcs drm_gem_vram_mm_funcs;
/* /*
* Helpers for struct drm_driver * Helpers for struct drm_driver
*/ */