[PATCH 3/4] drm/amdgpu: cleanup skipping IB test on KIQ

[Christian König]

Instead of hard coding the ring type in the function just never provide
a test_ib callback.

Additional to that remove the emit_ib callback to make sure the nobody
ever tries to execute an IB on the KIQ.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 11 +++--------
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  |  2 --
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  |  2 --
 3 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index c514bb9e94a0..ec0e6238dbc3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -351,15 +351,10 @@ int amdgpu_ib_ring_tests(struct amdgpu_device *adev)
 		struct amdgpu_ring *ring = adev->rings[i];
 		long tmo;
 
-		if (!ring->sched.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.
+		/* KIQ rings don't have an IB test because we never submit IBs
+		 * to them and they have no interrupt support.
 		 */
-		if (ring->funcs->type == AMDGPU_RING_TYPE_KIQ)
+		if (!ring->sched.ready || !ring->funcs->test_ib)
 			continue;
 
 		/* MM engine need more time */
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 5e65be53eab5..677bdc1abf96 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -6987,10 +6987,8 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_kiq = {
 		17 + /* gfx_v8_0_ring_emit_vm_flush */
 		7 + 7 + 7, /* gfx_v8_0_ring_emit_fence_kiq x3 for user fence, vm fence */
 	.emit_ib_size =	4, /* gfx_v8_0_ring_emit_ib_compute */
-	.emit_ib = gfx_v8_0_ring_emit_ib_compute,
 	.emit_fence = gfx_v8_0_ring_emit_fence_kiq,
 	.test_ring = gfx_v8_0_ring_test_ring,
-	.test_ib = gfx_v8_0_ring_test_ib,
 	.insert_nop = amdgpu_ring_insert_nop,
 	.pad_ib = amdgpu_ring_generic_pad_ib,
 	.emit_rreg = gfx_v8_0_ring_emit_rreg,
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 9248ef08bb37..67c011d7f1a6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4848,10 +4848,8 @@ static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_kiq = {
 		2 + /* gfx_v9_0_ring_emit_vm_flush */
 		8 + 8 + 8, /* gfx_v9_0_ring_emit_fence_kiq x3 for user fence, vm fence */
 	.emit_ib_size =	4, /* gfx_v9_0_ring_emit_ib_compute */
-	.emit_ib = gfx_v9_0_ring_emit_ib_compute,
 	.emit_fence = gfx_v9_0_ring_emit_fence_kiq,
 	.test_ring = gfx_v9_0_ring_test_ring,
-	.test_ib = gfx_v9_0_ring_test_ib,
 	.insert_nop = amdgpu_ring_insert_nop,
 	.pad_ib = amdgpu_ring_generic_pad_ib,
 	.emit_rreg = gfx_v9_0_ring_emit_rreg,
-- 
2.14.1