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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2020-2023 Intel Corporation
4 */
5
6#ifndef __IVPU_MMU_CONTEXT_H__
7#define __IVPU_MMU_CONTEXT_H__
8
9#include <drm/drm_mm.h>
10
11struct ivpu_device;
12struct ivpu_file_priv;
13struct ivpu_addr_range;
14
15#define IVPU_MMU_PGTABLE_ENTRIES 512
16
17struct ivpu_mmu_pgtable {
18 u64 **pgd_cpu_entries[IVPU_MMU_PGTABLE_ENTRIES];
19 u64 *pgd_entries[IVPU_MMU_PGTABLE_ENTRIES];
20 u64 *pgd;
21 dma_addr_t pgd_dma;
22};
23
24struct ivpu_mmu_context {
25 struct mutex lock; /* protects: mm, pgtable, bo_list */
26 struct drm_mm mm;
27 struct ivpu_mmu_pgtable pgtable;
28 struct list_head bo_list;
29 u32 id;
30};
31
32int ivpu_mmu_global_context_init(struct ivpu_device *vdev);
33void ivpu_mmu_global_context_fini(struct ivpu_device *vdev);
34
35int ivpu_mmu_user_context_init(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u32 ctx_id);
36void ivpu_mmu_user_context_fini(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx);
37void ivpu_mmu_user_context_mark_invalid(struct ivpu_device *vdev, u32 ssid);
38
39int ivpu_mmu_context_insert_node_locked(struct ivpu_mmu_context *ctx,
40 const struct ivpu_addr_range *range,
41 u64 size, struct drm_mm_node *node);
42void ivpu_mmu_context_remove_node_locked(struct ivpu_mmu_context *ctx,
43 struct drm_mm_node *node);
44
45int ivpu_mmu_context_map_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
46 u64 vpu_addr, struct sg_table *sgt, bool llc_coherent);
47void ivpu_mmu_context_unmap_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
48 u64 vpu_addr, struct sg_table *sgt);
49
50#endif /* __IVPU_MMU_CONTEXT_H__ */