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drm/vram: Set GEM object functions for PRIME

Browse source 
PRIME functionality is now provided via the callback functions in
struct drm_gem_object_funcs. The driver-structure functions are obsolete.
As a side effect of this patch, VRAM-based drivers get basic PRIME
support automatically without having to set any flags or additional
fields.

v2:
	- use existing PRIME functions for object's table
v3:
	- move object table to EOF so it can refer to internal interfaces

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190702115012.4418-2-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2019-07-02 13:50:08 +02:00
parent 8721215c7e
commit 31070a871f
2 changed files with 19 additions and 1 deletions
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17
drivers/gpu/drm/drm_gem_vram_helper.c
View file

@ -7,6 +7,8 @@
#include <drm/drm_vram_mm_helper.h>
#include <drm/ttm/ttm_page_alloc.h>
static const struct drm_gem_object_funcs drm_gem_vram_object_funcs;
/**
* DOC: overview
*
@ -80,6 +82,9 @@ static int drm_gem_vram_init(struct drm_device *dev,
int ret;
size_t acc_size;
if (!gbo->gem.funcs)
gbo->gem.funcs = &drm_gem_vram_object_funcs;
ret = drm_gem_object_init(dev, &gbo->gem, size);
if (ret)
return ret;
@ -639,3 +644,15 @@ int drm_gem_vram_driver_gem_prime_mmap(struct drm_gem_object *gem,
return drm_gem_prime_mmap(gem, vma);
}
EXPORT_SYMBOL(drm_gem_vram_driver_gem_prime_mmap);
/*
* GEM object funcs
*/
static const struct drm_gem_object_funcs drm_gem_vram_object_funcs = {
.free = drm_gem_vram_driver_gem_free_object_unlocked,
.pin = drm_gem_vram_driver_gem_prime_pin,
.unpin = drm_gem_vram_driver_gem_prime_unpin,
.vmap = drm_gem_vram_driver_gem_prime_vmap,
.vunmap = drm_gem_vram_driver_gem_prime_vunmap
};

3
include/drm/drm_gem_vram_helper.h
View file

@ -127,7 +127,8 @@ int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file,
.gem_free_object_unlocked = \
drm_gem_vram_driver_gem_free_object_unlocked, \
.dumb_create = drm_gem_vram_driver_dumb_create, \
.dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset
.dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset, \
.gem_prime_mmap = drm_gem_prime_mmap
/*
* PRIME helpers for struct drm_driver