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drm/amdgpu: sync bo and shadow V3

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Use shadow flag to judge which direction to sync.
V2:
Don't need bo pin, so remove it.

V3:
1. Split to two functions, one is backup_to_shadow, another is
restore_from_shadow.
2. Clean up previous shadow direction difinitions.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou
2016-08-04 16:51:18 +08:00
committed by Alex Deucher
parent e24db98529
commit 20f4eff1c8
3 changed files with 76 additions and 8 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@@ -438,12 +438,6 @@ struct amdgpu_bo_va {
#define AMDGPU_GEM_DOMAIN_MAX 0x3
enum amdgpu_bo_shadow {
AMDGPU_BO_SHADOW_TO_NONE = 0,
AMDGPU_BO_SHADOW_TO_PARENT,
AMDGPU_BO_SHADOW_TO_SHADOW,
};
struct amdgpu_bo {
/* Protected by gem.mutex */
struct list_head list;
@@ -470,8 +464,6 @@ struct amdgpu_bo {
struct drm_gem_object gem_base;
struct amdgpu_bo *parent;
struct amdgpu_bo *shadow;
/* indicate if need to sync between bo and shadow */
enum amdgpu_bo_shadow backup_shadow;
struct ttm_bo_kmap_obj dma_buf_vmap;
struct amdgpu_mn *mn;