drm/amdgpu: add amdgpu_evict_gtt debugfs entry

Allow evicting all BOs from the GTT domain.

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

1 files changed, 12 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index ee76b468774a..369beb5041a2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -767,10 +767,21 @@ static int amdgpu_debugfs_evict_vram(struct seq_file *m, void *data)
         return 0;
 }
 
+static int amdgpu_debugfs_evict_gtt(struct seq_file *m, void *data)
+{
+        struct drm_info_node *node = (struct drm_info_node *)m->private;
+        struct drm_device *dev = node->minor->dev;
+        struct amdgpu_device *adev = dev->dev_private;
+
+        seq_printf(m, "(%d)\n", ttm_bo_evict_mm(&adev->mman.bdev, TTM_PL_TT));
+        return 0;
+}
+
 static const struct drm_info_list amdgpu_debugfs_list[] = {
         {"amdgpu_vbios", amdgpu_debugfs_get_vbios_dump},
         {"amdgpu_test_ib", &amdgpu_debugfs_test_ib},
-        {"amdgpu_evict_vram", &amdgpu_debugfs_evict_vram}
+        {"amdgpu_evict_vram", &amdgpu_debugfs_evict_vram},
+        {"amdgpu_evict_gtt", &amdgpu_debugfs_evict_gtt},
 };
 
 int amdgpu_debugfs_init(struct amdgpu_device *adev)