drm/amdgpu: defer test IBs on the rings at boot (V3)
amdgpu_ib_ring_tests() runs test IB's on rings at boot
contributes to ~500 ms of amdgpu driver's boot time.
This patch defers it and ensures that its executed
in amdgpu_info_ioctl() if it wasn't scheduled.
V2: Use queue_delayed_work() & flush_delayed_work().
V3: removed usage of separate wq, ensure ib tests is
run before enabling clockgating.
Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index efff211..4e15b6f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -279,6 +279,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
if (!info->return_size || !info->return_pointer)
return -EINVAL;
+ /* Ensure IB tests are run on ring */
+ flush_delayed_work(&adev->late_init_work);
+
switch (info->query) {
case AMDGPU_INFO_ACCEL_WORKING:
ui32 = adev->accel_working;