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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * Copyright (C) 2020-2023 Intel Corporation
- */
- #ifndef __IVPU_MMU_CONTEXT_H__
- #define __IVPU_MMU_CONTEXT_H__
- #include <drm/drm_mm.h>
- struct ivpu_device;
- struct ivpu_file_priv;
- struct ivpu_addr_range;
- #define IVPU_MMU_PGTABLE_ENTRIES 512ull
- struct ivpu_mmu_pgtable {
- u64 ***pte_ptrs[IVPU_MMU_PGTABLE_ENTRIES];
- u64 **pmd_ptrs[IVPU_MMU_PGTABLE_ENTRIES];
- u64 *pud_ptrs[IVPU_MMU_PGTABLE_ENTRIES];
- u64 *pgd_dma_ptr;
- dma_addr_t pgd_dma;
- };
- struct ivpu_mmu_context {
- struct mutex lock; /* Protects: mm, pgtable, is_cd_valid */
- struct drm_mm mm;
- struct ivpu_mmu_pgtable pgtable;
- bool is_cd_valid;
- u32 id;
- };
- void ivpu_mmu_context_init(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u32 context_id);
- void ivpu_mmu_context_fini(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx);
- void ivpu_mmu_global_context_init(struct ivpu_device *vdev);
- void ivpu_mmu_global_context_fini(struct ivpu_device *vdev);
- int ivpu_mmu_reserved_context_init(struct ivpu_device *vdev);
- void ivpu_mmu_reserved_context_fini(struct ivpu_device *vdev);
- int ivpu_mmu_context_insert_node(struct ivpu_mmu_context *ctx, const struct ivpu_addr_range *range,
- u64 size, struct drm_mm_node *node);
- void ivpu_mmu_context_remove_node(struct ivpu_mmu_context *ctx, struct drm_mm_node *node);
- int
- ivpu_mmu_context_map_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u64 vpu_addr,
- struct sg_table *sgt, size_t bo_size, bool llc_coherent, bool read_only);
- void ivpu_mmu_context_unmap_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
- u64 vpu_addr, struct sg_table *sgt);
- int ivpu_mmu_context_set_pages_ro(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
- u64 vpu_addr, size_t size);
- #endif /* __IVPU_MMU_CONTEXT_H__ */
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