| /* SPDX-License-Identifier: MIT */ |
| /* |
| * Copyright © 2022 Intel Corporation |
| */ |
| |
| #ifndef _XE_TTM_VRAM_MGR_TYPES_H_ |
| #define _XE_TTM_VRAM_MGR_TYPES_H_ |
| |
| #include <drm/drm_buddy.h> |
| #include <drm/ttm/ttm_device.h> |
| |
| struct xe_mem_region; |
| |
| /** |
| * struct xe_ttm_vram_mgr - XE TTM VRAM manager |
| * |
| * Manages placement of TTM resource in VRAM. |
| */ |
| struct xe_ttm_vram_mgr { |
| /** @manager: Base TTM resource manager */ |
| struct ttm_resource_manager manager; |
| /** @mm: DRM buddy allocator which manages the VRAM */ |
| struct drm_buddy mm; |
| /** @vram: ptr to details of associated VRAM region */ |
| struct xe_mem_region *vram; |
| /** @visible_size: Proped size of the CPU visible portion */ |
| u64 visible_size; |
| /** @visible_avail: CPU visible portion still unallocated */ |
| u64 visible_avail; |
| /** @default_page_size: default page size */ |
| u64 default_page_size; |
| /** @lock: protects allocations of VRAM */ |
| struct mutex lock; |
| /** @mem_type: The TTM memory type */ |
| u32 mem_type; |
| }; |
| |
| /** |
| * struct xe_ttm_vram_mgr_resource - XE TTM VRAM resource |
| */ |
| struct xe_ttm_vram_mgr_resource { |
| /** @base: Base TTM resource */ |
| struct ttm_resource base; |
| /** @blocks: list of DRM buddy blocks */ |
| struct list_head blocks; |
| /** @used_visible_size: How many CPU visible bytes this resource is using */ |
| u64 used_visible_size; |
| /** @flags: flags associated with the resource */ |
| unsigned long flags; |
| }; |
| |
| #endif |