1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2022 Intel Corporation 4 */ 5 6 #ifndef _XE_BO_TYPES_H_ 7 #define _XE_BO_TYPES_H_ 8 9 #include <linux/iosys-map.h> 10 11 #include <drm/ttm/ttm_bo.h> 12 #include <drm/ttm/ttm_device.h> 13 #include <drm/ttm/ttm_execbuf_util.h> 14 #include <drm/ttm/ttm_placement.h> 15 16 #include "xe_ggtt_types.h" 17 18 struct xe_device; 19 struct xe_vm; 20 21 #define XE_BO_MAX_PLACEMENTS 3 22 23 /* TODO: To be selected with VM_MADVISE */ 24 #define XE_BO_PRIORITY_NORMAL 1 25 26 /** @xe_bo: XE buffer object */ 27 struct xe_bo { 28 /** @ttm: TTM base buffer object */ 29 struct ttm_buffer_object ttm; 30 /** @size: Size of this buffer object */ 31 size_t size; 32 /** @flags: flags for this buffer object */ 33 u32 flags; 34 /** @vm: VM this BO is attached to, for extobj this will be NULL */ 35 struct xe_vm *vm; 36 /** @tile: Tile this BO is attached to (kernel BO only) */ 37 struct xe_tile *tile; 38 /** @placements: valid placements for this BO */ 39 struct ttm_place placements[XE_BO_MAX_PLACEMENTS]; 40 /** @placement: current placement for this BO */ 41 struct ttm_placement placement; 42 /** @ggtt_node: GGTT node if this BO is mapped in the GGTT */ 43 struct xe_ggtt_node *ggtt_node; 44 /** @vmap: iosys map of this buffer */ 45 struct iosys_map vmap; 46 /** @ttm_kmap: TTM bo kmap object for internal use only. Keep off. */ 47 struct ttm_bo_kmap_obj kmap; 48 /** @pinned_link: link to present / evicted list of pinned BO */ 49 struct list_head pinned_link; 50 #ifdef CONFIG_PROC_FS 51 /** 52 * @client: @xe_drm_client which created the bo 53 */ 54 struct xe_drm_client *client; 55 /** 56 * @client_link: Link into @xe_drm_client.objects_list 57 */ 58 struct list_head client_link; 59 #endif 60 /** @freed: List node for delayed put. */ 61 struct llist_node freed; 62 /** @update_index: Update index if PT BO */ 63 int update_index; 64 /** @created: Whether the bo has passed initial creation */ 65 bool created; 66 67 /** @ccs_cleared */ 68 bool ccs_cleared; 69 70 /** 71 * @cpu_caching: CPU caching mode. Currently only used for userspace 72 * objects. Exceptions are system memory on DGFX, which is always 73 * WB. 74 */ 75 u16 cpu_caching; 76 77 /** @vram_userfault_link: Link into @mem_access.vram_userfault.list */ 78 struct list_head vram_userfault_link; 79 80 /** @min_align: minimum alignment needed for this BO if different 81 * from default 82 */ 83 u64 min_align; 84 }; 85 86 #endif 87