drm/amdgpu: skip IB tests for KIQ in general

[Why]
1. We never submit IBs to KIQ.
2. Ring test pass without KIQ's ring also.
3. By skipping we see an improvement of around 500ms
   in the amdgpu's resume time.

[How]
skip IB tests for KIQ ring type.

Signed-off-by: Shirish S <shirish.s@amd.com>
Signed-off-by: Pratik Vishwakarma <Pratik.Vishwakarma@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 47817e00f54f..b8963b725dfa 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -354,6 +354,14 @@ int amdgpu_ib_ring_tests(struct amdgpu_device *adev)
                 if (!ring || !ring->ready)
                         continue;
 
+                /* skip IB tests for KIQ in general for the below reasons:
+                 * 1. We never submit IBs to the KIQ
+                 * 2. KIQ doesn't use the EOP interrupts,
+                 *    we use some other CP interrupt.
+                 */
+                if (ring->funcs->type == AMDGPU_RING_TYPE_KIQ)
+                        continue;
+
                 /* MM engine need more time */
                 if (ring->funcs->type == AMDGPU_RING_TYPE_UVD ||
                         ring->funcs->type == AMDGPU_RING_TYPE_VCE ||