1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2022 Intel Corporation 4 */ 5 #ifndef _XE_SA_H_ 6 #define _XE_SA_H_ 7 8 #include <linux/sizes.h> 9 #include <linux/types.h> 10 11 #include "xe_bo.h" 12 #include "xe_sa_types.h" 13 14 struct dma_fence; 15 struct xe_tile; 16 17 struct xe_sa_manager *__xe_sa_bo_manager_init(struct xe_tile *tile, u32 size, u32 guard, u32 align); 18 struct drm_suballoc *__xe_sa_bo_new(struct xe_sa_manager *sa_manager, u32 size, gfp_t gfp); 19 20 static inline struct xe_sa_manager *xe_sa_bo_manager_init(struct xe_tile *tile, u32 size, u32 align) 21 { 22 return __xe_sa_bo_manager_init(tile, size, SZ_4K, align); 23 } 24 25 /** 26 * xe_sa_bo_new() - Make a suballocation. 27 * @sa_manager: the &xe_sa_manager 28 * @size: number of bytes we want to suballocate 29 * 30 * Try to make a suballocation of size @size. 31 * 32 * Return: a &drm_suballoc, or an ERR_PTR. 33 */ 34 static inline struct drm_suballoc *xe_sa_bo_new(struct xe_sa_manager *sa_manager, u32 size) 35 { 36 return __xe_sa_bo_new(sa_manager, size, GFP_KERNEL); 37 } 38 39 void xe_sa_bo_flush_write(struct drm_suballoc *sa_bo); 40 void xe_sa_bo_sync_read(struct drm_suballoc *sa_bo); 41 void xe_sa_bo_free(struct drm_suballoc *sa_bo, struct dma_fence *fence); 42 43 static inline struct xe_sa_manager * 44 to_xe_sa_manager(struct drm_suballoc_manager *mng) 45 { 46 return container_of(mng, struct xe_sa_manager, base); 47 } 48 49 /** 50 * xe_sa_manager_gpu_addr - Retrieve GPU address of a back storage BO 51 * within suballocator. 52 * @sa_manager: the &xe_sa_manager struct instance 53 * Return: GGTT address of the back storage BO. 54 */ 55 static inline u64 xe_sa_manager_gpu_addr(struct xe_sa_manager *sa_manager) 56 { 57 return xe_bo_ggtt_addr(sa_manager->bo); 58 } 59 60 static inline u64 xe_sa_bo_gpu_addr(struct drm_suballoc *sa) 61 { 62 return xe_sa_manager_gpu_addr(to_xe_sa_manager(sa->manager)) + 63 drm_suballoc_soffset(sa); 64 } 65 66 static inline void *xe_sa_bo_cpu_addr(struct drm_suballoc *sa) 67 { 68 return to_xe_sa_manager(sa->manager)->cpu_ptr + 69 drm_suballoc_soffset(sa); 70 } 71 72 #endif 73