drm/amdgpu: parameterize ttm BO destroy callback

Make provision to pass different ttm BO destroy callback
while creating a amdgpu_bo.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index b7a2070..2b6b61e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -54,29 +54,40 @@
 
 static void amdgpu_bo_destroy(struct ttm_buffer_object *tbo)
 {
-       struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
        struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
-       struct amdgpu_bo_user *ubo;
 
        amdgpu_bo_kunmap(bo);
 
        if (bo->tbo.base.import_attach)
                drm_prime_gem_destroy(&bo->tbo.base, bo->tbo.sg);
        drm_gem_object_release(&bo->tbo.base);
+       amdgpu_bo_unref(&bo->parent);
+       kvfree(bo);
+}
+
+static void amdgpu_bo_user_destroy(struct ttm_buffer_object *tbo)
+{
+       struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
+       struct amdgpu_bo_user *ubo;
+
+       ubo = to_amdgpu_bo_user(bo);
+       kfree(ubo->metadata);
+       amdgpu_bo_destroy(tbo);
+}
+
+static void amdgpu_bo_vm_destroy(struct ttm_buffer_object *tbo)
+{
+       struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
+       struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
+
        /* in case amdgpu_device_recover_vram got NULL of bo->parent */
        if (!list_empty(&bo->shadow_list)) {
                mutex_lock(&adev->shadow_list_lock);
                list_del_init(&bo->shadow_list);
                mutex_unlock(&adev->shadow_list_lock);
        }
-       amdgpu_bo_unref(&bo->parent);
-
-       if (bo->tbo.type != ttm_bo_type_kernel) {
-               ubo = to_amdgpu_bo_user(bo);
-               kfree(ubo->metadata);
-       }
 
-       kvfree(bo);
+       amdgpu_bo_destroy(tbo);
 }
 
 /**
@@ -91,8 +102,11 @@ static void amdgpu_bo_destroy(struct ttm_buffer_object *tbo)
  */
 bool amdgpu_bo_is_amdgpu_bo(struct ttm_buffer_object *bo)
 {
-       if (bo->destroy == &amdgpu_bo_destroy)
+       if (bo->destroy == &amdgpu_bo_destroy ||
+           bo->destroy == &amdgpu_bo_user_destroy ||
+           bo->destroy == &amdgpu_bo_vm_destroy)
                return true;
+
        return false;
 }
 
@@ -568,9 +582,12 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
        if (bp->type == ttm_bo_type_kernel)
                bo->tbo.priority = 1;
 
+       if (!bp->destroy)
+               bp->destroy = &amdgpu_bo_destroy;
+
        r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, bp->type,
                                 &bo->placement, page_align, &ctx,  NULL,
-                                bp->resv, &amdgpu_bo_destroy);
+                                bp->resv, bp->destroy);
        if (unlikely(r != 0))
                return r;
 
@@ -634,6 +651,7 @@ int amdgpu_bo_create_user(struct amdgpu_device *adev,
        int r;
 
        bp->bo_ptr_size = sizeof(struct amdgpu_bo_user);
+       bp->destroy = &amdgpu_bo_user_destroy;
        r = amdgpu_bo_create(adev, bp, &bo_ptr);
        if (r)
                return r;
@@ -665,6 +683,7 @@ int amdgpu_bo_create_vm(struct amdgpu_device *adev,
         * num of amdgpu_vm_pt entries.
         */
        BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm));
+       bp->destroy = &amdgpu_bo_vm_destroy;
        r = amdgpu_bo_create(adev, bp, &bo_ptr);
        if (r)
                return r;

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index 2cbc1d0..503846d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -55,7 +55,8 @@ struct amdgpu_bo_param {
        u64                             flags;
        enum ttm_bo_type                type;
        bool                            no_wait_gpu;
-       struct dma_resv *resv;
+       struct dma_resv                 *resv;
+       void                            (*destroy)(struct ttm_buffer_object *bo);
 };
 
 /* bo virtual addresses in a vm */