threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NVKM_MMU_H__
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#define __NVKM_MMU_H__
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#include <core/subdev.h>
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#include <core/mm.h>
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struct nvkm_device;
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struct nvkm_mem;
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struct nvkm_vm_pgt {
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struct nvkm_memory *mem[2];
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u32 refcount[2];
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};
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struct nvkm_vm_pgd {
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struct list_head head;
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struct nvkm_gpuobj *obj;
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};
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struct nvkm_vma {
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struct list_head head;
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int refcount;
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struct nvkm_vm *vm;
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struct nvkm_mm_node *node;
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u64 offset;
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u32 access;
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};
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struct nvkm_vm {
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struct nvkm_mmu *mmu;
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struct mutex mutex;
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struct nvkm_mm mm;
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struct kref refcount;
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struct list_head pgd_list;
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atomic_t engref[NVKM_SUBDEV_NR];
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struct nvkm_vm_pgt *pgt;
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u32 fpde;
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u32 lpde;
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};
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int nvkm_vm_new(struct nvkm_device *, u64 offset, u64 length, u64 mm_offset,
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struct lock_class_key *, struct nvkm_vm **);
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int nvkm_vm_ref(struct nvkm_vm *, struct nvkm_vm **, struct nvkm_gpuobj *pgd);
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int nvkm_vm_boot(struct nvkm_vm *, u64 size);
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int nvkm_vm_get(struct nvkm_vm *, u64 size, u32 page_shift, u32 access,
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struct nvkm_vma *);
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void nvkm_vm_put(struct nvkm_vma *);
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void nvkm_vm_map(struct nvkm_vma *, struct nvkm_mem *);
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void nvkm_vm_map_at(struct nvkm_vma *, u64 offset, struct nvkm_mem *);
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void nvkm_vm_unmap(struct nvkm_vma *);
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void nvkm_vm_unmap_at(struct nvkm_vma *, u64 offset, u64 length);
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struct nvkm_mmu {
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const struct nvkm_mmu_func *func;
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struct nvkm_subdev subdev;
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u64 limit;
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u8 dma_bits;
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u8 lpg_shift;
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};
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int nv04_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
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int nv41_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
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int nv44_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
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int nv50_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
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int gf100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
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#endif
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