[PATCH 5/8] drm/amdgpu: print DMA-buf status in debugfs

Christian König
2018-03-25T11:00:13Z

Just note if a BO was imported/exported.

Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 46b9ea4e6103..7c1f761bb1a5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -777,6 +777,8 @@ 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;
@@ -805,6 +807,15 @@ 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;
--
2.14.1