| 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 | |
|---|
| 11 | struct ivpu_device; |
|---|
| 12 | struct ivpu_file_priv; |
|---|
| 13 | struct ivpu_addr_range; |
|---|
| 14 | |
|---|
| 15 | #define IVPU_MMU_PGTABLE_ENTRIES 512ull |
|---|
| 16 | |
|---|
| 17 | struct ivpu_mmu_pgtable { |
|---|
| 18 | u64 ***pte_ptrs[IVPU_MMU_PGTABLE_ENTRIES]; |
|---|
| 19 | u64 **pmd_ptrs[IVPU_MMU_PGTABLE_ENTRIES]; |
|---|
| 20 | u64 *pud_ptrs[IVPU_MMU_PGTABLE_ENTRIES]; |
|---|
| 21 | u64 *pgd_dma_ptr; |
|---|
| 22 | dma_addr_t pgd_dma; |
|---|
| 23 | }; |
|---|
| 24 | |
|---|
| 25 | struct ivpu_mmu_context { |
|---|
| 26 | struct mutex lock; /* protects: mm, pgtable, bo_list */ |
|---|
| 27 | struct drm_mm mm; |
|---|
| 28 | struct ivpu_mmu_pgtable pgtable; |
|---|
| 29 | struct list_head bo_list; |
|---|
| 30 | u32 id; |
|---|
| 31 | }; |
|---|
| 32 | |
|---|
| 33 | int ivpu_mmu_global_context_init(struct ivpu_device *vdev); |
|---|
| 34 | void ivpu_mmu_global_context_fini(struct ivpu_device *vdev); |
|---|
| 35 | int ivpu_mmu_reserved_context_init(struct ivpu_device *vdev); |
|---|
| 36 | void ivpu_mmu_reserved_context_fini(struct ivpu_device *vdev); |
|---|
| 37 | |
|---|
| 38 | int ivpu_mmu_user_context_init(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u32 ctx_id); |
|---|
| 39 | void ivpu_mmu_user_context_fini(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx); |
|---|
| 40 | void ivpu_mmu_user_context_mark_invalid(struct ivpu_device *vdev, u32 ssid); |
|---|
| 41 | |
|---|
| 42 | int ivpu_mmu_context_insert_node_locked(struct ivpu_mmu_context *ctx, |
|---|
| 43 | const struct ivpu_addr_range *range, |
|---|
| 44 | u64 size, struct drm_mm_node *node); |
|---|
| 45 | void ivpu_mmu_context_remove_node_locked(struct ivpu_mmu_context *ctx, |
|---|
| 46 | struct drm_mm_node *node); |
|---|
| 47 | |
|---|
| 48 | int ivpu_mmu_context_map_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, |
|---|
| 49 | u64 vpu_addr, struct sg_table *sgt, bool llc_coherent); |
|---|
| 50 | void ivpu_mmu_context_unmap_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, |
|---|
| 51 | u64 vpu_addr, struct sg_table *sgt); |
|---|
| 52 | |
|---|
| 53 | #endif /* __IVPU_MMU_CONTEXT_H__ */ |
|---|
| 54 | |
|---|
