diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h new file mode 100644 index 000000000..70e7887ef --- /dev/null +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h @@ -0,0 +1,139 @@ +/* SPDX-License-Identifier: MIT */ +#ifndef __NVKM_MMU_H__ +#define __NVKM_MMU_H__ +#include <core/subdev.h> + +struct nvkm_vma { + struct list_head head; + struct rb_node tree; + u64 addr; + u64 size:50; + bool mapref:1; /* PTs (de)referenced on (un)map (vs pre-allocated). */ + bool sparse:1; /* Unmapped PDEs/PTEs will not trigger MMU faults. */ +#define NVKM_VMA_PAGE_NONE 7 + u8 page:3; /* Requested page type (index, or NONE for automatic). */ + u8 refd:3; /* Current page type (index, or NONE for unreferenced). */ + bool used:1; /* Region allocated. */ + bool part:1; /* Region was split from an allocated region by map(). */ + bool busy:1; /* Region busy (for temporarily preventing user access). */ + bool mapped:1; /* Region contains valid pages. */ + struct nvkm_memory *memory; /* Memory currently mapped into VMA. */ + struct nvkm_tags *tags; /* Compression tag reference. */ +}; + +struct nvkm_vmm { + const struct nvkm_vmm_func *func; + struct nvkm_mmu *mmu; + const char *name; + u32 debug; + struct kref kref; + struct mutex mutex; + + u64 start; + u64 limit; + + struct nvkm_vmm_pt *pd; + struct list_head join; + + struct list_head list; + struct rb_root free; + struct rb_root root; + + bool bootstrapped; + atomic_t engref[NVKM_SUBDEV_NR]; + + dma_addr_t null; + void *nullp; + + bool replay; +}; + +int nvkm_vmm_new(struct nvkm_device *, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *, const char *name, struct nvkm_vmm **); +struct nvkm_vmm *nvkm_vmm_ref(struct nvkm_vmm *); +void nvkm_vmm_unref(struct nvkm_vmm **); +int nvkm_vmm_boot(struct nvkm_vmm *); +int nvkm_vmm_join(struct nvkm_vmm *, struct nvkm_memory *inst); +void nvkm_vmm_part(struct nvkm_vmm *, struct nvkm_memory *inst); +int nvkm_vmm_get(struct nvkm_vmm *, u8 page, u64 size, struct nvkm_vma **); +void nvkm_vmm_put(struct nvkm_vmm *, struct nvkm_vma **); + +struct nvkm_vmm_map { + struct nvkm_memory *memory; + u64 offset; + + struct nvkm_mm_node *mem; + struct scatterlist *sgl; + dma_addr_t *dma; + u64 *pfn; + u64 off; + + const struct nvkm_vmm_page *page; + + struct nvkm_tags *tags; + u64 next; + u64 type; + u64 ctag; +}; + +int nvkm_vmm_map(struct nvkm_vmm *, struct nvkm_vma *, void *argv, u32 argc, + struct nvkm_vmm_map *); +void nvkm_vmm_unmap(struct nvkm_vmm *, struct nvkm_vma *); + +struct nvkm_memory *nvkm_umem_search(struct nvkm_client *, u64); +struct nvkm_vmm *nvkm_uvmm_search(struct nvkm_client *, u64 handle); + +struct nvkm_mmu { + const struct nvkm_mmu_func *func; + struct nvkm_subdev subdev; + + u8 dma_bits; + + int heap_nr; + struct { +#define NVKM_MEM_VRAM 0x01 +#define NVKM_MEM_HOST 0x02 +#define NVKM_MEM_COMP 0x04 +#define NVKM_MEM_DISP 0x08 + u8 type; + u64 size; + } heap[4]; + + int type_nr; + struct { +#define NVKM_MEM_KIND 0x10 +#define NVKM_MEM_MAPPABLE 0x20 +#define NVKM_MEM_COHERENT 0x40 +#define NVKM_MEM_UNCACHED 0x80 + u8 type; + u8 heap; + } type[16]; + + struct nvkm_vmm *vmm; + + struct { + struct mutex mutex; + struct list_head list; + } ptc, ptp; + + struct mutex mutex; /* serialises mmu invalidations */ + + struct nvkm_device_oclass user; +}; + +int nv04_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int nv41_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int nv44_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int nv50_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int g84_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int mcp77_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int gf100_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int gk104_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int gk20a_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int gm200_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int gm20b_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int gp100_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int gp10b_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int gv100_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +int tu102_mmu_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_mmu **); +#endif |