xe_sa.h

 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
14struct dma_fence;
15struct xe_tile;
16
17struct xe_sa_manager *__xe_sa_bo_manager_init(struct xe_tile *tile, u32 size, u32 guard, u32 align);
18struct drm_suballoc *__xe_sa_bo_new(struct xe_sa_manager *sa_manager, u32 size, gfp_t gfp);
19
20static 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 */
34static 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
39void xe_sa_bo_flush_write(struct drm_suballoc *sa_bo);
40void xe_sa_bo_sync_read(struct drm_suballoc *sa_bo);
41void xe_sa_bo_free(struct drm_suballoc *sa_bo, struct dma_fence *fence);
42
43static inline struct xe_sa_manager *
44to_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 */
55static 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
60static 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
66static 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