drm/amdgpu: add one more mmhub instance for Arcturus (v2)

v2: set mmhub num under CHIP_ARCTURUS switch case and add one more mmhub id_mgr
Signed-off-by: Le Ma <le.ma@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_vm.h

@@ -100,9 +100,10 @@ struct amdgpu_bo_list_entry;
 #define AMDGPU_VM_FAULT_STOP_ALWAYS	2
 
 /* max number of VMHUB */
-#define AMDGPU_MAX_VMHUBS			2
+#define AMDGPU_MAX_VMHUBS			3
 #define AMDGPU_GFXHUB_0				0
 #define AMDGPU_MMHUB_0				1
+#define AMDGPU_MMHUB_1				2
 
 /* hardcode that limit for now */
 #define AMDGPU_VA_RESERVED_SIZE			(1ULL << 20)

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

@@ -641,7 +641,8 @@ static int gmc_v9_0_allocate_vm_inv_eng(struct amdgpu_device *adev)
 {
 	struct amdgpu_ring *ring;
 	unsigned vm_inv_engs[AMDGPU_MAX_VMHUBS] =
-		{GFXHUB_FREE_VM_INV_ENGS_BITMAP, MMHUB_FREE_VM_INV_ENGS_BITMAP};
+		{GFXHUB_FREE_VM_INV_ENGS_BITMAP, MMHUB_FREE_VM_INV_ENGS_BITMAP,
+		GFXHUB_FREE_VM_INV_ENGS_BITMAP};
 	unsigned i;
 	unsigned vmhub, inv_eng;
 
@@ -1008,6 +1009,8 @@ static int gmc_v9_0_sw_init(void *handle)
 			amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
 		break;
 	case CHIP_ARCTURUS:
+		adev->num_vmhubs = 3;
+
 		/* Keep the vm size same with Vega20 */
 		amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
 		break;
@@ -1088,6 +1091,7 @@ static int gmc_v9_0_sw_init(void *handle)
 	 */
 	adev->vm_manager.id_mgr[AMDGPU_GFXHUB_0].num_ids = AMDGPU_NUM_OF_VMIDS;
 	adev->vm_manager.id_mgr[AMDGPU_MMHUB_0].num_ids = AMDGPU_NUM_OF_VMIDS;
+	adev->vm_manager.id_mgr[AMDGPU_MMHUB_1].num_ids = AMDGPU_NUM_OF_VMIDS;
 
 	amdgpu_vm_manager_init(adev);