drm/amdgpu: share scheduler score on VCN3 instances

The VCN3 instances can do both decode as well as encode.

Share the scheduler load balancing score and remove fixing encode to
only the second instance.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-and-Tested-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h

@@ -212,6 +212,7 @@ struct amdgpu_vcn_inst {
 	void			*saved_bo;
 	struct amdgpu_ring	ring_dec;
 	struct amdgpu_ring	ring_enc[AMDGPU_VCN_MAX_ENC_RINGS];
+	atomic_t		sched_score;
 	struct amdgpu_irq_src	irq;
 	struct amdgpu_vcn_reg	external;
 	struct amdgpu_bo	*dpg_sram_bo;

drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c

@@ -171,6 +171,7 @@ static int vcn_v3_0_sw_init(void *handle)
 
 	for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
 		volatile struct amdgpu_fw_shared *fw_shared;
+
 		if (adev->vcn.harvest_config & (1 << i))
 			continue;
 
@@ -198,6 +199,8 @@ static int vcn_v3_0_sw_init(void *handle)
 		if (r)
 			return r;
 
+		atomic_set(&adev->vcn.inst[i].sched_score, 0);
+
 		ring = &adev->vcn.inst[i].ring_dec;
 		ring->use_doorbell = true;
 		if (amdgpu_sriov_vf(adev)) {
@@ -209,7 +212,8 @@ static int vcn_v3_0_sw_init(void *handle)
 			ring->no_scheduler = true;
 		sprintf(ring->name, "vcn_dec_%d", i);
 		r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst[i].irq, 0,
-				     AMDGPU_RING_PRIO_DEFAULT, NULL);
+				     AMDGPU_RING_PRIO_DEFAULT,
+				     &adev->vcn.inst[i].sched_score);
 		if (r)
 			return r;
 
@@ -227,11 +231,10 @@ static int vcn_v3_0_sw_init(void *handle)
 			} else {
 				ring->doorbell_index = (adev->doorbell_index.vcn.vcn_ring0_1 << 1) + 2 + j + 8 * i;
 			}
-			if (adev->asic_type == CHIP_SIENNA_CICHLID && i != 1)
-				ring->no_scheduler = true;
 			sprintf(ring->name, "vcn_enc_%d.%d", i, j);
 			r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst[i].irq, 0,
-					     AMDGPU_RING_PRIO_DEFAULT, NULL);
+					     AMDGPU_RING_PRIO_DEFAULT,
+					     &adev->vcn.inst[i].sched_score);
 			if (r)
 				return r;
 		}