They provide a nice smoke test of transfer performance
using SDMA. Allow the user to run these at runtime
rather than only at init time.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 23 +++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index db8a8710333e..c7190d02897e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1362,6 +1362,25 @@ static int amdgpu_debugfs_evict_gtt(void *data, u64 *val)
return 0;
}
+static int amdgpu_debugfs_benchmark(void *data, u64 val)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)data;
+ struct drm_device *dev = adev_to_drm(adev);
+ int r;
+
+ r = pm_runtime_get_sync(dev->dev);
+ if (r < 0) {
+ pm_runtime_put_autosuspend(dev->dev);
+ return r;
+ }
+
+ r = amdgpu_benchmark(adev, val);
+
+ pm_runtime_mark_last_busy(dev->dev);
+ pm_runtime_put_autosuspend(dev->dev);
+
+ return r;
+}
static int amdgpu_debugfs_vm_info_show(struct seq_file *m, void *unused)
{
@@ -1398,6 +1417,8 @@ DEFINE_DEBUGFS_ATTRIBUTE(amdgpu_evict_vram_fops, amdgpu_debugfs_evict_vram,
NULL, "%lld\n");
DEFINE_DEBUGFS_ATTRIBUTE(amdgpu_evict_gtt_fops, amdgpu_debugfs_evict_gtt,
NULL, "%lld\n");
+DEFINE_DEBUGFS_ATTRIBUTE(amdgpu_benchmark_fops, NULL, amdgpu_debugfs_benchmark,
+ "%lld\n");
static void amdgpu_ib_preempt_fences_swap(struct amdgpu_ring *ring,
struct dma_fence **fences)
@@ -1683,6 +1704,8 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev)
&amdgpu_debugfs_test_ib_fops);
debugfs_create_file("amdgpu_vm_info", 0444, root, adev,
&amdgpu_debugfs_vm_info_fops);
+ debugfs_create_file("amdgpu_benchmark", 0222, root, adev,
+ &amdgpu_benchmark_fops);
adev->debugfs_vbios_blob.data = adev->bios;
adev->debugfs_vbios_blob.size = adev->bios_size;
--
2.35.1
