korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-26 05:34:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: enable freesync for A+A configs

Browse Source 
Some newer APUs can scanout directly from GTT, that saves us from
allocating another bounce buffer in VRAM and enables freesync in such
configurations.

Without this patch creating a framebuffer from the imported BO will
fail and userspace will fall back to a copy.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2021-01-27 13:20:40 +01:00 committed by Alex Deucher
parent 53a5a27294
commit cd9b0159be
2 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
View File

@ -926,8 +926,10 @@ amdgpu_display_user_framebuffer_create(struct drm_device *dev,
struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
struct drm_gem_object *obj;
struct amdgpu_framebuffer *amdgpu_fb;
struct drm_gem_object *obj;
struct amdgpu_bo *bo;
uint32_t domains;
int ret;
obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
@ -938,7 +940,9 @@ amdgpu_display_user_framebuffer_create(struct drm_device *dev,
}
/* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */
if (obj->import_attach) {
bo = gem_to_amdgpu_bo(obj);
domains = amdgpu_display_supported_domains(drm_to_adev(dev), bo->flags);
if (obj->import_attach && !(domains & AMDGPU_GEM_DOMAIN_GTT)) {
drm_dbg_kms(dev, "Cannot create framebuffer from imported dma_buf\n");
return ERR_PTR(-EINVAL);
}

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

@ -897,7 +897,7 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
return -EINVAL;
/* A shared bo cannot be migrated to VRAM */
if (bo->prime_shared_count) {
if (bo->prime_shared_count || bo->tbo.base.import_attach) {
if (domain & AMDGPU_GEM_DOMAIN_GTT)
domain = AMDGPU_GEM_DOMAIN_GTT;
else