drm/amdgpu: add mes unmap legacy queue routine

For mes kiq has been taken over by mes sched, drv can't directly
use mes kiq to unmap queues. drv has to use mes sched api to
unmap legacy queue.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c

@@ -367,7 +367,7 @@ int amdgpu_gfx_mqd_sw_init(struct amdgpu_device *adev,
 
 	/* create MQD for KIQ */
 	ring = &adev->gfx.kiq.ring;
-	if (!ring->mqd_obj) {
+	if (!adev->enable_mes_kiq && !ring->mqd_obj) {
 		/* originaly the KIQ MQD is put in GTT domain, but for SRIOV VRAM domain is a must
 		 * otherwise hypervisor trigger SAVE_VF fail after driver unloaded which mean MQD
 		 * deallocated and gart_unbind, to strict diverage we decide to use VRAM domain for
@@ -464,7 +464,7 @@ int amdgpu_gfx_disable_kcq(struct amdgpu_device *adev)
 {
 	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
 	struct amdgpu_ring *kiq_ring = &kiq->ring;
-	int i, r;
+	int i, r = 0;
 
 	if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
 		return -EINVAL;
@@ -479,7 +479,9 @@ int amdgpu_gfx_disable_kcq(struct amdgpu_device *adev)
 	for (i = 0; i < adev->gfx.num_compute_rings; i++)
 		kiq->pmf->kiq_unmap_queues(kiq_ring, &adev->gfx.compute_ring[i],
 					   RESET_QUEUES, 0, 0);
-	r = amdgpu_ring_test_helper(kiq_ring);
+
+	if (adev->gfx.kiq.ring.sched.ready)
+		r = amdgpu_ring_test_helper(kiq_ring);
 	spin_unlock(&adev->gfx.kiq.ring_lock);
 
 	return r;