Avoid that we ping/pong the buffers when we stop to pin DMA-buf
exports by using the allowed domains for exported buffers.

Signed-off-by: Christian König <christian.koe...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 80ba6dfc54e2..d938d458e22d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -28,6 +28,7 @@
 #include <linux/file.h>
 #include <linux/pagemap.h>
 #include <linux/sync_file.h>
+#include <linux/dma-buf.h>
 
 #include <drm/amdgpu_drm.h>
 #include <drm/drm_syncobj.h>
@@ -417,7 +418,9 @@ static int amdgpu_cs_bo_validate(struct amdgpu_cs_parser *p,
        /* Don't move this buffer if we have depleted our allowance
         * to move it. Don't move anything if the threshold is zero.
         */
-       if (p->bytes_moved < p->bytes_moved_threshold) {
+       if (p->bytes_moved < p->bytes_moved_threshold &&
+           (!bo->tbo.base.dma_buf ||
+           list_empty(&bo->tbo.base.dma_buf->attachments))) {
                if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
                    (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)) {
                        /* And don't move a CPU_ACCESS_REQUIRED BO to limited
-- 
2.17.1

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