drm/amdgpu: enable the static csa when mcbp enabled

CSA is the Context Save Area for preemption.
Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -872,7 +872,7 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p)
 	if (r)
 		return r;
 
-	if (amdgpu_sriov_vf(adev)) {
+	if (amdgpu_mcbp || amdgpu_sriov_vf(adev)) {
 		struct dma_fence *f;
 
 		bo_va = fpriv->csa_va;
@@ -961,7 +961,8 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
 		if (chunk->chunk_id != AMDGPU_CHUNK_ID_IB)
 			continue;
 
-		if (chunk_ib->ip_type == AMDGPU_HW_IP_GFX && amdgpu_sriov_vf(adev)) {
+		if (chunk_ib->ip_type == AMDGPU_HW_IP_GFX &&
+		    (amdgpu_mcbp || amdgpu_sriov_vf(adev))) {
 			if (chunk_ib->flags & AMDGPU_IB_FLAG_PREEMPT) {
 				if (chunk_ib->flags & AMDGPU_IB_FLAG_CE)
 					ce_preempt++;

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

@@ -1722,7 +1722,7 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
 			adev->ip_blocks[i].status.hw = true;
 
 			/* right after GMC hw init, we create CSA */
-			if (amdgpu_sriov_vf(adev)) {
+			if (amdgpu_mcbp || amdgpu_sriov_vf(adev)) {
 				r = amdgpu_allocate_static_csa(adev, &adev->virt.csa_obj,
 								AMDGPU_GEM_DOMAIN_VRAM,
 								AMDGPU_CSA_SIZE);

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

@@ -217,9 +217,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
 
 		/* drop preamble IBs if we don't have a context switch */
 		if ((ib->flags & AMDGPU_IB_FLAG_PREAMBLE) &&
-			skip_preamble &&
-			!(status & AMDGPU_PREAMBLE_IB_PRESENT_FIRST) &&
-			!amdgpu_sriov_vf(adev)) /* for SRIOV preemption, Preamble CE ib must be inserted anyway */
+		    skip_preamble &&
+		    !(status & AMDGPU_PREAMBLE_IB_PRESENT_FIRST) &&
+		    !amdgpu_mcbp &&
+		    !amdgpu_sriov_vf(adev)) /* for SRIOV preemption, Preamble CE ib must be inserted anyway */
 			continue;
 
 		amdgpu_ring_emit_ib(ring, job, ib, status);

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

@@ -709,7 +709,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
 		dev_info.ids_flags = 0;
 		if (adev->flags & AMD_IS_APU)
 			dev_info.ids_flags |= AMDGPU_IDS_FLAGS_FUSION;
-		if (amdgpu_sriov_vf(adev))
+		if (amdgpu_mcbp || amdgpu_sriov_vf(adev))
 			dev_info.ids_flags |= AMDGPU_IDS_FLAGS_PREEMPTION;
 
 		vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
@@ -1003,7 +1003,7 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 		goto error_vm;
 	}
 
-	if (amdgpu_sriov_vf(adev)) {
+	if (amdgpu_mcbp || amdgpu_sriov_vf(adev)) {
 		uint64_t csa_addr = amdgpu_csa_vaddr(adev) & AMDGPU_GMC_HOLE_MASK;
 
 		r = amdgpu_map_static_csa(adev, &fpriv->vm, adev->virt.csa_obj,
@@ -1066,7 +1066,7 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev,
 
 	amdgpu_vm_bo_rmv(adev, fpriv->prt_va);
 
-	if (amdgpu_sriov_vf(adev)) {
+	if (amdgpu_mcbp || amdgpu_sriov_vf(adev)) {
 		/* TODO: how to handle reserve failure */
 		BUG_ON(amdgpu_bo_reserve(adev->virt.csa_obj, true));
 		amdgpu_vm_bo_rmv(adev, fpriv->csa_va);