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drm/amdgpu: Fill out gem_object->resv 

That way we can ditch our gem_prime_res_obj implementation. Since ttm
absolutely needs the right reservation object all the boilerplate is
already there and we just have to wire it up correctly.

Note that gem/prime doesn't care when we do this, as long as we do it
before the bo is registered and someone can call the handle2fd ioctl
on it.

Aside: ttm_buffer_object.ttm_resv could probably be ditched in favour
of always passing a non-NULL resv to ttm_bo_init(). At least for gem
drivers that would avoid having two of these, on in ttm_buffer_object
and the other in drm_gem_object, one just there for confusion.

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Michel Dänzer" <michel.daenzer@amd.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Cc: Evan Quan <evan.quan@amd.com>
Cc: Sonny Jiang <sonny.jiang@amd.com>
Cc: Amber Lin <Amber.Lin@amd.com>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: Junwei Zhang <Jerry.Zhang@amd.com>
Cc: Thomas Zimmermann <contact@tzimmermann.org>
Cc: Samuel Li <Samuel.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190725132655.11951-4-daniel.vetter@ffwll.ch
alistair/sunxi64-5.4-dsi
Daniel Vetter 2019-07-25 15:26:54 +02:00
parent aa77e7f6d5
commit b2ad978fd0
4 changed files with 3 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
View File

@ -267,20 +267,6 @@ error:
drm_gem_map_detach(dma_buf, attach);
}
/**
* amdgpu_gem_prime_res_obj - &drm_driver.gem_prime_res_obj implementation
* @obj: GEM BO
*
* Returns:
* The BO's reservation object.
*/
struct reservation_object *amdgpu_gem_prime_res_obj(struct drm_gem_object *obj)
{
struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
return bo->tbo.resv;
}
/**
* amdgpu_dma_buf_begin_cpu_access - &dma_buf_ops.begin_cpu_access implementation
* @dma_buf: Shared DMA buffer
@ -339,8 +325,7 @@ const struct dma_buf_ops amdgpu_dmabuf_ops = {
* @gobj: GEM BO
* @flags: Flags such as DRM_CLOEXEC and DRM_RDWR.
*
* The main work is done by the &drm_gem_prime_export helper, which in turn
* uses &amdgpu_gem_prime_res_obj.
* The main work is done by the &drm_gem_prime_export helper.
*
* Returns:
* Shared DMA buffer representing the GEM BO from the given device.

1
drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.h
View File

@ -34,7 +34,6 @@ struct dma_buf *amdgpu_gem_prime_export(struct drm_gem_object *gobj,
int flags);
struct drm_gem_object *amdgpu_gem_prime_import(struct drm_device *dev,
struct dma_buf *dma_buf);
struct reservation_object *amdgpu_gem_prime_res_obj(struct drm_gem_object *);
void *amdgpu_gem_prime_vmap(struct drm_gem_object *obj);
void amdgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
int amdgpu_gem_prime_mmap(struct drm_gem_object *obj,

1
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -1397,7 +1397,6 @@ static struct drm_driver kms_driver = {
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_export = amdgpu_gem_prime_export,
.gem_prime_import = amdgpu_gem_prime_import,
.gem_prime_res_obj = amdgpu_gem_prime_res_obj,
.gem_prime_get_sg_table = amdgpu_gem_prime_get_sg_table,
.gem_prime_import_sg_table = amdgpu_gem_prime_import_sg_table,
.gem_prime_vmap = amdgpu_gem_prime_vmap,

2
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@ -509,6 +509,8 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev,
if (unlikely(r != 0))
return r;
bo->gem_base.resv = bo->tbo.resv;
if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
bo->tbo.mem.mem_type == TTM_PL_VRAM &&
bo->tbo.mem.start < adev->gmc.visible_vram_size >> PAGE_SHIFT)