drm/ttm: add wrapper to get manager from bdev.

This will allow different abstractions later.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200804025632.3868079-37-airlied@gmail.com

drivers/gpu/drm/ttm/ttm_bo.c

@@ -108,7 +108,7 @@ static void ttm_bo_mem_space_debug(struct ttm_buffer_object *bo,
 			return;
 		drm_printf(&p, "  placement[%d]=0x%08X (%d)\n",
 			   i, placement->placement[i].flags, mem_type);
-		man = &bo->bdev->man[mem_type];
+		man = ttm_manager_type(bo->bdev, mem_type);
 		ttm_mem_type_manager_debug(man, &p);
 	}
 }
@@ -157,7 +157,7 @@ static void ttm_bo_add_mem_to_lru(struct ttm_buffer_object *bo,
 	if (mem->placement & TTM_PL_FLAG_NO_EVICT)
 		return;
 
-	man = &bdev->man[mem->mem_type];
+	man = ttm_manager_type(bdev, mem->mem_type);
 	list_add_tail(&bo->lru, &man->lru[bo->priority]);
 
 	if (man->use_tt && bo->ttm &&
@@ -232,7 +232,7 @@ void ttm_bo_bulk_move_lru_tail(struct ttm_lru_bulk_move *bulk)
 		dma_resv_assert_held(pos->first->base.resv);
 		dma_resv_assert_held(pos->last->base.resv);
 
-		man = &pos->first->bdev->man[TTM_PL_TT];
+		man = ttm_manager_type(pos->first->bdev, TTM_PL_TT);
 		list_bulk_move_tail(&man->lru[i], &pos->first->lru,
 				    &pos->last->lru);
 	}
@@ -247,7 +247,7 @@ void ttm_bo_bulk_move_lru_tail(struct ttm_lru_bulk_move *bulk)
 		dma_resv_assert_held(pos->first->base.resv);
 		dma_resv_assert_held(pos->last->base.resv);
 
-		man = &pos->first->bdev->man[TTM_PL_VRAM];
+		man = ttm_manager_type(pos->first->bdev, TTM_PL_VRAM);
 		list_bulk_move_tail(&man->lru[i], &pos->first->lru,
 				    &pos->last->lru);
 	}
@@ -273,8 +273,8 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
 				  struct ttm_operation_ctx *ctx)
 {
 	struct ttm_bo_device *bdev = bo->bdev;
-	struct ttm_mem_type_manager *old_man = &bdev->man[bo->mem.mem_type];
-	struct ttm_mem_type_manager *new_man = &bdev->man[mem->mem_type];
+	struct ttm_mem_type_manager *old_man = ttm_manager_type(bdev, bo->mem.mem_type);
+	struct ttm_mem_type_manager *new_man = ttm_manager_type(bdev, mem->mem_type);
 	int ret;
 
 	ret = ttm_mem_io_lock(old_man, true);
@@ -340,7 +340,7 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
 	return 0;
 
 out_err:
-	new_man = &bdev->man[bo->mem.mem_type];
+	new_man = ttm_manager_type(bdev, bo->mem.mem_type);
 	if (!new_man->use_tt) {
 		ttm_tt_destroy(bo->ttm);
 		bo->ttm = NULL;
@@ -552,7 +552,7 @@ static void ttm_bo_release(struct kref *kref)
 	struct ttm_buffer_object *bo =
 	    container_of(kref, struct ttm_buffer_object, kref);
 	struct ttm_bo_device *bdev = bo->bdev;
-	struct ttm_mem_type_manager *man = &bdev->man[bo->mem.mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bdev, bo->mem.mem_type);
 	size_t acc_size = bo->acc_size;
 	int ret;
 
@@ -844,7 +844,7 @@ static int ttm_bo_mem_get(struct ttm_buffer_object *bo,
 			  const struct ttm_place *place,
 			  struct ttm_mem_reg *mem)
 {
-	struct ttm_mem_type_manager *man = &bo->bdev->man[mem->mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bo->bdev, mem->mem_type);
 
 	mem->mm_node = NULL;
 	if (!man->func || !man->func->get_node)
@@ -855,7 +855,7 @@ static int ttm_bo_mem_get(struct ttm_buffer_object *bo,
 
 void ttm_bo_mem_put(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem)
 {
-	struct ttm_mem_type_manager *man = &bo->bdev->man[mem->mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bo->bdev, mem->mem_type);
 
 	if (!man->func || !man->func->put_node)
 		return;
@@ -910,7 +910,7 @@ static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo,
 				  struct ttm_operation_ctx *ctx)
 {
 	struct ttm_bo_device *bdev = bo->bdev;
-	struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bdev, mem->mem_type);
 	struct ww_acquire_ctx *ticket;
 	int ret;
 
@@ -1000,7 +1000,7 @@ static int ttm_bo_mem_placement(struct ttm_buffer_object *bo,
 	if (ret)
 		return ret;
 
-	man = &bdev->man[mem_type];
+	man = ttm_manager_type(bdev, mem_type);
 	if (!man->has_type || !man->use_type)
 		return -EBUSY;
 
@@ -1063,7 +1063,7 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
 		if (unlikely(ret))
 			goto error;
 
-		man = &bdev->man[mem->mem_type];
+		man = ttm_manager_type(bdev, mem->mem_type);
 		ret = ttm_bo_add_move_fence(bo, man, mem, ctx->no_wait_gpu);
 		if (unlikely(ret)) {
 			ttm_bo_mem_put(bo, mem);
@@ -1453,7 +1453,7 @@ EXPORT_SYMBOL(ttm_mem_type_manager_force_list_clean);
 
 int ttm_bo_evict_mm(struct ttm_bo_device *bdev, unsigned mem_type)
 {
-	struct ttm_mem_type_manager *man = &bdev->man[mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bdev, mem_type);
 
 	if (mem_type == 0 || mem_type >= TTM_NUM_MEM_TYPES) {
 		pr_err("Illegal memory manager memory type %u\n", mem_type);
@@ -1556,7 +1556,7 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev)
 	unsigned i;
 	struct ttm_mem_type_manager *man;
 
-	man = &bdev->man[TTM_PL_SYSTEM];
+	man = ttm_manager_type(bdev, TTM_PL_SYSTEM);
 	ttm_mem_type_manager_disable(man);
 
 	mutex_lock(&ttm_global_mutex);
@@ -1583,7 +1583,7 @@ EXPORT_SYMBOL(ttm_bo_device_release);
 
 static void ttm_bo_init_sysman(struct ttm_bo_device *bdev)
 {
-	struct ttm_mem_type_manager *man = &bdev->man[TTM_PL_SYSTEM];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bdev, TTM_PL_SYSTEM);
 
 	/*
 	 * Initialize the system memory buffer type.
@@ -1647,7 +1647,7 @@ void ttm_bo_unmap_virtual_locked(struct ttm_buffer_object *bo)
 void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo)
 {
 	struct ttm_bo_device *bdev = bo->bdev;
-	struct ttm_mem_type_manager *man = &bdev->man[bo->mem.mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bdev, bo->mem.mem_type);
 
 	ttm_mem_io_lock(man, false);
 	ttm_bo_unmap_virtual_locked(bo);

drivers/gpu/drm/ttm/ttm_bo_util.c

@@ -129,7 +129,7 @@ static int ttm_mem_io_evict(struct ttm_mem_type_manager *man)
 int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
 		       struct ttm_mem_reg *mem)
 {
-	struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bdev, mem->mem_type);
 	int ret;
 
 	if (mem->bus.io_reserved_count++)
@@ -162,7 +162,7 @@ void ttm_mem_io_free(struct ttm_bo_device *bdev,
 
 int ttm_mem_io_reserve_vm(struct ttm_buffer_object *bo)
 {
-	struct ttm_mem_type_manager *man = &bo->bdev->man[bo->mem.mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bo->bdev, bo->mem.mem_type);
 	struct ttm_mem_reg *mem = &bo->mem;
 	int ret;
 
@@ -195,7 +195,7 @@ static int ttm_mem_reg_ioremap(struct ttm_bo_device *bdev,
 			       struct ttm_mem_reg *mem,
 			       void **virtual)
 {
-	struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bdev, mem->mem_type);
 	int ret;
 	void *addr;
 
@@ -232,7 +232,7 @@ static void ttm_mem_reg_iounmap(struct ttm_bo_device *bdev,
 {
 	struct ttm_mem_type_manager *man;
 
-	man = &bdev->man[mem->mem_type];
+	man = ttm_manager_type(bdev, mem->mem_type);
 
 	if (virtual && mem->bus.addr == NULL)
 		iounmap(virtual);
@@ -303,7 +303,7 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
 		       struct ttm_mem_reg *new_mem)
 {
 	struct ttm_bo_device *bdev = bo->bdev;
-	struct ttm_mem_type_manager *man = &bdev->man[new_mem->mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bdev, new_mem->mem_type);
 	struct ttm_tt *ttm = bo->ttm;
 	struct ttm_mem_reg *old_mem = &bo->mem;
 	struct ttm_mem_reg old_copy = *old_mem;
@@ -571,7 +571,7 @@ int ttm_bo_kmap(struct ttm_buffer_object *bo,
 		struct ttm_bo_kmap_obj *map)
 {
 	struct ttm_mem_type_manager *man =
-		&bo->bdev->man[bo->mem.mem_type];
+		ttm_manager_type(bo->bdev, bo->mem.mem_type);
 	unsigned long offset, size;
 	int ret;
 
@@ -601,7 +601,7 @@ void ttm_bo_kunmap(struct ttm_bo_kmap_obj *map)
 {
 	struct ttm_buffer_object *bo = map->bo;
 	struct ttm_mem_type_manager *man =
-		&bo->bdev->man[bo->mem.mem_type];
+		ttm_manager_type(bo->bdev, bo->mem.mem_type);
 
 	if (!map->virtual)
 		return;
@@ -634,7 +634,7 @@ int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
 			      struct ttm_mem_reg *new_mem)
 {
 	struct ttm_bo_device *bdev = bo->bdev;
-	struct ttm_mem_type_manager *man = &bdev->man[new_mem->mem_type];
+	struct ttm_mem_type_manager *man = ttm_manager_type(bdev, new_mem->mem_type);
 	struct ttm_mem_reg *old_mem = &bo->mem;
 	int ret;
 	struct ttm_buffer_object *ghost_obj;
@@ -697,8 +697,8 @@ int ttm_bo_pipeline_move(struct ttm_buffer_object *bo,
 	struct ttm_bo_device *bdev = bo->bdev;
 	struct ttm_mem_reg *old_mem = &bo->mem;
 
-	struct ttm_mem_type_manager *from = &bdev->man[old_mem->mem_type];
-	struct ttm_mem_type_manager *to = &bdev->man[new_mem->mem_type];
+	struct ttm_mem_type_manager *from = ttm_manager_type(bdev, old_mem->mem_type);
+	struct ttm_mem_type_manager *to = ttm_manager_type(bdev, new_mem->mem_type);
 
 	int ret;
 

drivers/gpu/drm/ttm/ttm_bo_vm.c

@@ -282,7 +282,7 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf,
 	vm_fault_t ret = VM_FAULT_NOPAGE;
 	unsigned long address = vmf->address;
 	struct ttm_mem_type_manager *man =
-		&bdev->man[bo->mem.mem_type];
+		ttm_manager_type(bdev, bo->mem.mem_type);
 
 	/*
 	 * Refuse to fault imported pages. This should be handled

include/drm/ttm/ttm_bo_driver.h

@@ -444,6 +444,12 @@ struct ttm_bo_device {
 	bool no_retry;
 };
 
+static inline struct ttm_mem_type_manager *ttm_manager_type(struct ttm_bo_device *bdev,
+							    int mem_type)
+{
+	return &bdev->man[mem_type];
+}
+
 /**
  * struct ttm_lru_bulk_move_pos
  *