53 lines · c
1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (C) 2020-2023 Intel Corporation4 */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 512ull16 17struct 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 25struct ivpu_mmu_context {26 struct mutex lock; /* Protects: mm, pgtable */27 struct drm_mm mm;28 struct ivpu_mmu_pgtable pgtable;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);34int ivpu_mmu_reserved_context_init(struct ivpu_device *vdev);35void ivpu_mmu_reserved_context_fini(struct ivpu_device *vdev);36 37int ivpu_mmu_user_context_init(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u32 ctx_id);38void ivpu_mmu_user_context_fini(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx);39void ivpu_mmu_user_context_mark_invalid(struct ivpu_device *vdev, u32 ssid);40 41int ivpu_mmu_context_insert_node(struct ivpu_mmu_context *ctx, const struct ivpu_addr_range *range,42 u64 size, struct drm_mm_node *node);43void ivpu_mmu_context_remove_node(struct ivpu_mmu_context *ctx, 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);49int ivpu_mmu_context_set_pages_ro(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,50 u64 vpu_addr, size_t size);51 52#endif /* __IVPU_MMU_CONTEXT_H__ */53