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Code Issues Releases Wiki Activity

drm/vram-helper: Use drm_gem_ttm_dumb_map_offset()

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VRAM helpers now use drm_gem_ttm_dumb_map_offset() to implement
struct drm_driver.dumb_map_offset.

v2:
	* update hibmc as well (kernel test robot)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210408140139.27731-3-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2021-04-08 16:01:37 +02:00
parent 5690e48639
commit ede0c69ceb
3 changed files with 3 additions and 54 deletions
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48
drivers/gpu/drm/drm_gem_vram_helper.c
View file

@ -245,22 +245,6 @@ void drm_gem_vram_put(struct drm_gem_vram_object *gbo)
}
EXPORT_SYMBOL(drm_gem_vram_put);
/**
* drm_gem_vram_mmap_offset() - Returns a GEM VRAM object's mmap offset
* @gbo: the GEM VRAM object
*
* See drm_vma_node_offset_addr() for more information.
*
* Returns:
* The buffer object's offset for userspace mappings on success, or
* 0 if no offset is allocated.
*/
u64 drm_gem_vram_mmap_offset(struct drm_gem_vram_object *gbo)
{
return drm_vma_node_offset_addr(&gbo->bo.base.vma_node);
}
EXPORT_SYMBOL(drm_gem_vram_mmap_offset);
static u64 drm_gem_vram_pg_offset(struct drm_gem_vram_object *gbo)
{
/* Keep TTM behavior for now, remove when drivers are audited */
@ -638,38 +622,6 @@ int drm_gem_vram_driver_dumb_create(struct drm_file *file,
}
EXPORT_SYMBOL(drm_gem_vram_driver_dumb_create);
/**
* drm_gem_vram_driver_dumb_mmap_offset() - \
Implements &struct drm_driver.dumb_mmap_offset
* @file: DRM file pointer.
* @dev: DRM device.
* @handle: GEM handle
* @offset: Returns the mapping's memory offset on success
*
* Returns:
* 0 on success, or
* a negative errno code otherwise.
*/
int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file,
struct drm_device *dev,
uint32_t handle, uint64_t *offset)
{
struct drm_gem_object *gem;
struct drm_gem_vram_object *gbo;
gem = drm_gem_object_lookup(file, handle);
if (!gem)
return -ENOENT;
gbo = drm_gem_vram_of_gem(gem);
*offset = drm_gem_vram_mmap_offset(gbo);
drm_gem_object_put(gem);
return 0;
}
EXPORT_SYMBOL(drm_gem_vram_driver_dumb_mmap_offset);
/*
* Helpers for struct drm_plane_helper_funcs
*/

2
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
View file

@ -60,7 +60,7 @@ static const struct drm_driver hibmc_driver = {
.minor = 0,
.debugfs_init = drm_vram_mm_debugfs_init,
.dumb_create = hibmc_dumb_create,
.dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset,
.dumb_map_offset = drm_gem_ttm_dumb_map_offset,
.gem_prime_mmap = drm_gem_prime_mmap,
.irq_handler = hibmc_drm_interrupt,
};

7
include/drm/drm_gem_vram_helper.h
View file

@ -5,6 +5,7 @@
#include <drm/drm_file.h>
#include <drm/drm_gem.h>
#include <drm/drm_gem_ttm_helper.h>
#include <drm/drm_ioctl.h>
#include <drm/drm_modes.h>
#include <drm/ttm/ttm_bo_api.h>
@ -93,7 +94,6 @@ struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev,
size_t size,
unsigned long pg_align);
void drm_gem_vram_put(struct drm_gem_vram_object *gbo);
u64 drm_gem_vram_mmap_offset(struct drm_gem_vram_object *gbo);
s64 drm_gem_vram_offset(struct drm_gem_vram_object *gbo);
int drm_gem_vram_pin(struct drm_gem_vram_object *gbo, unsigned long pl_flag);
int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo);
@ -113,9 +113,6 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file,
int drm_gem_vram_driver_dumb_create(struct drm_file *file,
struct drm_device *dev,
struct drm_mode_create_dumb *args);
int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file,
struct drm_device *dev,
uint32_t handle, uint64_t *offset);
/*
* Helpers for struct drm_plane_helper_funcs
@ -149,7 +146,7 @@ void drm_gem_vram_simple_display_pipe_cleanup_fb(
#define DRM_GEM_VRAM_DRIVER \
.debugfs_init = drm_vram_mm_debugfs_init, \
.dumb_create = drm_gem_vram_driver_dumb_create, \
.dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset, \
.dumb_map_offset = drm_gem_ttm_dumb_map_offset, \
.gem_prime_mmap = drm_gem_prime_mmap
/*