[PATCH 6.5 478/491] drm/amdgpu: fix GRBM read timeout when do mes_self_test

[Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>]

6.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tim Huang <Tim.Huang@xxxxxxx>

commit 36e7ff5c13cb15cb7b06c76d42bb76cbf6b7ea75 upstream.

Use a proper MEID to make sure the CP_HQD_* and CP_GFX_HQD_* registers
can be touched when initialize the compute and gfx mqd in mes_self_test.
Otherwise, we expect no response from CP and an GRBM eventual timeout.

Signed-off-by: Tim Huang <Tim.Huang@xxxxxxx>
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Yifan Zhang <yifan1.zhang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -627,8 +627,20 @@ static void amdgpu_mes_queue_init_mqd(st
 	mqd_prop.hqd_queue_priority = p->hqd_queue_priority;
 	mqd_prop.hqd_active = false;
 
+	if (p->queue_type == AMDGPU_RING_TYPE_GFX ||
+	    p->queue_type == AMDGPU_RING_TYPE_COMPUTE) {
+		mutex_lock(&adev->srbm_mutex);
+		amdgpu_gfx_select_me_pipe_q(adev, p->ring->me, p->ring->pipe, 0, 0, 0);
+	}
+
 	mqd_mgr->init_mqd(adev, q->mqd_cpu_ptr, &mqd_prop);
 
+	if (p->queue_type == AMDGPU_RING_TYPE_GFX ||
+	    p->queue_type == AMDGPU_RING_TYPE_COMPUTE) {
+		amdgpu_gfx_select_me_pipe_q(adev, 0, 0, 0, 0, 0);
+		mutex_unlock(&adev->srbm_mutex);
+	}
+
 	amdgpu_bo_unreserve(q->mqd_obj);
 }
 
@@ -1062,9 +1074,13 @@ int amdgpu_mes_add_ring(struct amdgpu_de
 	switch (queue_type) {
 	case AMDGPU_RING_TYPE_GFX:
 		ring->funcs = adev->gfx.gfx_ring[0].funcs;
+		ring->me = adev->gfx.gfx_ring[0].me;
+		ring->pipe = adev->gfx.gfx_ring[0].pipe;
 		break;
 	case AMDGPU_RING_TYPE_COMPUTE:
 		ring->funcs = adev->gfx.compute_ring[0].funcs;
+		ring->me = adev->gfx.compute_ring[0].me;
+		ring->pipe = adev->gfx.compute_ring[0].pipe;
 		break;
 	case AMDGPU_RING_TYPE_SDMA:
 		ring->funcs = adev->sdma.instance[0].ring.funcs;