drm/amd/display: use ttm_eu_reserve_buffers instead of amdgpu_bo_reserve v2

add ticket for display bo, so that it can preempt busy bo.

v2: fix stupid rebase error

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index d3e7755..33e3988 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4107,6 +4107,9 @@ static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
        struct amdgpu_device *adev;
        struct amdgpu_bo *rbo;
        struct dm_plane_state *dm_plane_state_new, *dm_plane_state_old;
+       struct list_head list;
+       struct ttm_validate_buffer tv;
+       struct ww_acquire_ctx ticket;
        uint64_t tiling_flags;
        uint32_t domain;
        int r;
@@ -4123,9 +4126,17 @@ static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
        obj = new_state->fb->obj[0];
        rbo = gem_to_amdgpu_bo(obj);
        adev = amdgpu_ttm_adev(rbo->tbo.bdev);
-       r = amdgpu_bo_reserve(rbo, false);
-       if (unlikely(r != 0))
+       INIT_LIST_HEAD(&list);
+
+       tv.bo = &rbo->tbo;
+       tv.num_shared = 1;
+       list_add(&tv.head, &list);
+
+       r = ttm_eu_reserve_buffers(&ticket, &list, false, NULL, true);
+       if (r) {
+               dev_err(adev->dev, "fail to reserve bo (%d)\n", r);
                return r;
+       }
 
        if (plane->type != DRM_PLANE_TYPE_CURSOR)
                domain = amdgpu_display_supported_domains(adev);
@@ -4136,21 +4147,21 @@ static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
        if (unlikely(r != 0)) {
                if (r != -ERESTARTSYS)
                        DRM_ERROR("Failed to pin framebuffer with error %d\n", r);
-               amdgpu_bo_unreserve(rbo);
+               ttm_eu_backoff_reservation(&ticket, &list);
                return r;
        }
 
        r = amdgpu_ttm_alloc_gart(&rbo->tbo);
        if (unlikely(r != 0)) {
                amdgpu_bo_unpin(rbo);
-               amdgpu_bo_unreserve(rbo);
+               ttm_eu_backoff_reservation(&ticket, &list);
                DRM_ERROR("%p bind failed\n", rbo);
                return r;
        }
 
        amdgpu_bo_get_tiling_flags(rbo, &tiling_flags);
 
-       amdgpu_bo_unreserve(rbo);
+       ttm_eu_backoff_reservation(&ticket, &list);
 
        afb->address = amdgpu_bo_gpu_offset(rbo);