drm/amdgpu: print DMA-buf status in debugfs

Just note if a BO was imported/exported.

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

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index c62c3dd4dcc6..7d3dc229fa47 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -780,6 +780,8 @@ static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
         struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
         struct seq_file *m = data;
 
+        struct dma_buf_attachment *attachment;
+        struct dma_buf *dma_buf;
         unsigned domain;
         const char *placement;
         unsigned pin_count;
@@ -808,6 +810,15 @@ static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
         pin_count = READ_ONCE(bo->pin_count);
         if (pin_count)
                 seq_printf(m, " pin count %d", pin_count);
+
+        dma_buf = READ_ONCE(bo->gem_base.dma_buf);
+        attachment = READ_ONCE(bo->gem_base.import_attach);
+
+        if (attachment)
+                seq_printf(m, " imported from %p", dma_buf);
+        else if (dma_buf)
+                seq_printf(m, " exported as %p", dma_buf);
+
         seq_printf(m, "\n");
 
         return 0;