drm/amdgpu: Add a parameter to amdgpu_bo_create()

The parameter init_value contains the value to which we initialized
VRAM bo when AMDGPU_GEM_CREATE_VRAM_CLEARED flag is set.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 494b79374828..16f31cbd9147 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -247,7 +247,7 @@ int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
                 r = amdgpu_bo_create(adev, size, align, true, domain,
                                      AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
                                      AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
-                                     NULL, NULL, bo_ptr);
+                                     NULL, NULL, 0, bo_ptr);
                 if (r) {
                         dev_err(adev->dev, "(%d) failed to allocate kernel bo\n",
                                 r);
@@ -356,6 +356,7 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
                                 struct sg_table *sg,
                                 struct ttm_placement *placement,
                                 struct reservation_object *resv,
+                                uint64_t init_value,
                                 struct amdgpu_bo **bo_ptr)
 {
         struct amdgpu_bo *bo;
@@ -456,7 +457,7 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
             bo->tbo.mem.placement & TTM_PL_FLAG_VRAM) {
                 struct dma_fence *fence;
 
-                r = amdgpu_fill_buffer(bo, 0, bo->tbo.resv, &fence);
+                r = amdgpu_fill_buffer(bo, init_value, bo->tbo.resv, &fence);
                 if (unlikely(r))
                         goto fail_unreserve;
 
@@ -508,6 +509,7 @@ static int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
                                         AMDGPU_GEM_CREATE_CPU_GTT_USWC,
                                         NULL, &placement,
                                         bo->tbo.resv,
+                                        0,
                                         &bo->shadow);
         if (!r) {
                 bo->shadow->parent = amdgpu_bo_ref(bo);
@@ -519,11 +521,15 @@ static int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
         return r;
 }
 
+/* init_value will only take effect when flags contains
+ * AMDGPU_GEM_CREATE_VRAM_CLEARED.
+ */
 int amdgpu_bo_create(struct amdgpu_device *adev,
                      unsigned long size, int byte_align,
                      bool kernel, u32 domain, u64 flags,
                      struct sg_table *sg,
                      struct reservation_object *resv,
+                     uint64_t init_value,
                      struct amdgpu_bo **bo_ptr)
 {
         struct ttm_placement placement = {0};
@@ -538,7 +544,7 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
 
         r = amdgpu_bo_create_restricted(adev, size, byte_align, kernel,
                                         domain, flags, sg, &placement,
-                                        resv, bo_ptr);
+                                        resv, init_value, bo_ptr);
         if (r)
                 return r;