diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h new file mode 100644 index 000000000000..6d8f61ea467a --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h @@ -0,0 +1,310 @@ +#ifndef __NVKM_VMM_H__ +#define __NVKM_VMM_H__ +#include "priv.h" +#include <core/memory.h> +enum nvkm_memory_target; + +struct nvkm_vmm_pt { + /* Some GPUs have a mapping level with a dual page tables to + * support large and small pages in the same address-range. + * + * We track the state of both page tables in one place, which + * is why there's multiple PT pointers/refcounts here. + */ + struct nvkm_mmu_pt *pt[2]; + u32 refs[2]; + + /* Page size handled by this PT. + * + * Tesla backend needs to know this when writinge PDEs, + * otherwise unnecessary. + */ + u8 page; + + /* Entire page table sparse. + * + * Used to propagate sparseness to child page tables. + */ + bool sparse:1; + + /* Tracking for page directories. + * + * The array is indexed by PDE, and will either point to the + * child page table, or indicate the PDE is marked as sparse. + **/ +#define NVKM_VMM_PDE_INVALID(pde) IS_ERR_OR_NULL(pde) +#define NVKM_VMM_PDE_SPARSED(pde) IS_ERR(pde) +#define NVKM_VMM_PDE_SPARSE ERR_PTR(-EBUSY) + struct nvkm_vmm_pt **pde; + + /* Tracking for dual page tables. + * + * There's one entry for each LPTE, keeping track of whether + * there are valid SPTEs in the same address-range. + * + * This information is used to manage LPTE state transitions. + */ +#define NVKM_VMM_PTE_SPARSE 0x80 +#define NVKM_VMM_PTE_VALID 0x40 +#define NVKM_VMM_PTE_SPTES 0x3f + u8 pte[]; +}; + +typedef void (*nvkm_vmm_pxe_func)(struct nvkm_vmm *, + struct nvkm_mmu_pt *, u32 ptei, u32 ptes); +typedef void (*nvkm_vmm_pde_func)(struct nvkm_vmm *, + struct nvkm_vmm_pt *, u32 pdei); +typedef void (*nvkm_vmm_pte_func)(struct nvkm_vmm *, struct nvkm_mmu_pt *, + u32 ptei, u32 ptes, struct nvkm_vmm_map *); + +struct nvkm_vmm_desc_func { + nvkm_vmm_pxe_func invalid; + nvkm_vmm_pxe_func unmap; + nvkm_vmm_pxe_func sparse; + + nvkm_vmm_pde_func pde; + + nvkm_vmm_pte_func mem; + nvkm_vmm_pte_func dma; + nvkm_vmm_pte_func sgl; +}; + +extern const struct nvkm_vmm_desc_func gf100_vmm_pgd; +void gf100_vmm_pgd_pde(struct nvkm_vmm *, struct nvkm_vmm_pt *, u32); +extern const struct nvkm_vmm_desc_func gf100_vmm_pgt; +void gf100_vmm_pgt_unmap(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32); +void gf100_vmm_pgt_mem(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32, + struct nvkm_vmm_map *); +void gf100_vmm_pgt_dma(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32, + struct nvkm_vmm_map *); +void gf100_vmm_pgt_sgl(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32, + struct nvkm_vmm_map *); + +void gk104_vmm_lpt_invalid(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32); + +struct nvkm_vmm_desc { + enum { + PGD, + PGT, + SPT, + LPT, + } type; + u8 bits; /* VMA bits covered by PT. */ + u8 size; /* Bytes-per-PTE. */ + u32 align; /* PT address alignment. */ + const struct nvkm_vmm_desc_func *func; +}; + +extern const struct nvkm_vmm_desc gk104_vmm_desc_16_12[]; +extern const struct nvkm_vmm_desc gk104_vmm_desc_16_16[]; +extern const struct nvkm_vmm_desc gk104_vmm_desc_17_12[]; +extern const struct nvkm_vmm_desc gk104_vmm_desc_17_17[]; + +extern const struct nvkm_vmm_desc gm200_vmm_desc_16_12[]; +extern const struct nvkm_vmm_desc gm200_vmm_desc_16_16[]; +extern const struct nvkm_vmm_desc gm200_vmm_desc_17_12[]; +extern const struct nvkm_vmm_desc gm200_vmm_desc_17_17[]; + +extern const struct nvkm_vmm_desc gp100_vmm_desc_12[]; +extern const struct nvkm_vmm_desc gp100_vmm_desc_16[]; + +struct nvkm_vmm_page { + u8 shift; + const struct nvkm_vmm_desc *desc; +#define NVKM_VMM_PAGE_SPARSE 0x01 +#define NVKM_VMM_PAGE_VRAM 0x02 +#define NVKM_VMM_PAGE_HOST 0x04 +#define NVKM_VMM_PAGE_COMP 0x08 +#define NVKM_VMM_PAGE_Sxxx (NVKM_VMM_PAGE_SPARSE) +#define NVKM_VMM_PAGE_xVxx (NVKM_VMM_PAGE_VRAM) +#define NVKM_VMM_PAGE_SVxx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_VRAM) +#define NVKM_VMM_PAGE_xxHx (NVKM_VMM_PAGE_HOST) +#define NVKM_VMM_PAGE_SxHx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_HOST) +#define NVKM_VMM_PAGE_xVHx (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_HOST) +#define NVKM_VMM_PAGE_SVHx (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_HOST) +#define NVKM_VMM_PAGE_xVxC (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_COMP) +#define NVKM_VMM_PAGE_SVxC (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_COMP) +#define NVKM_VMM_PAGE_xxHC (NVKM_VMM_PAGE_xxHx | NVKM_VMM_PAGE_COMP) +#define NVKM_VMM_PAGE_SxHC (NVKM_VMM_PAGE_SxHx | NVKM_VMM_PAGE_COMP) + u8 type; +}; + +struct nvkm_vmm_func { + int (*join)(struct nvkm_vmm *, struct nvkm_memory *inst); + void (*part)(struct nvkm_vmm *, struct nvkm_memory *inst); + + int (*aper)(enum nvkm_memory_target); + int (*valid)(struct nvkm_vmm *, void *argv, u32 argc, + struct nvkm_vmm_map *); + void (*flush)(struct nvkm_vmm *, int depth); + + u64 page_block; + const struct nvkm_vmm_page page[]; +}; + +struct nvkm_vmm_join { + struct nvkm_memory *inst; + struct list_head head; +}; + +int nvkm_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, + u32 pd_header, u64 addr, u64 size, struct lock_class_key *, + const char *name, struct nvkm_vmm **); +int nvkm_vmm_ctor(const struct nvkm_vmm_func *, struct nvkm_mmu *, + u32 pd_header, u64 addr, u64 size, struct lock_class_key *, + const char *name, struct nvkm_vmm *); +struct nvkm_vma *nvkm_vmm_node_search(struct nvkm_vmm *, u64 addr); +int nvkm_vmm_get_locked(struct nvkm_vmm *, bool getref, bool mapref, + bool sparse, u8 page, u8 align, u64 size, + struct nvkm_vma **pvma); +void nvkm_vmm_put_locked(struct nvkm_vmm *, struct nvkm_vma *); +void nvkm_vmm_unmap_locked(struct nvkm_vmm *, struct nvkm_vma *); +void nvkm_vmm_unmap_region(struct nvkm_vmm *vmm, struct nvkm_vma *vma); + +struct nvkm_vma *nvkm_vma_tail(struct nvkm_vma *, u64 tail); +void nvkm_vmm_node_insert(struct nvkm_vmm *, struct nvkm_vma *); + +int nv04_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, u32, + u64, u64, void *, u32, struct lock_class_key *, + const char *, struct nvkm_vmm **); +int nv04_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); + +int gf100_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *, + struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gf100_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base); +int gf100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); +void gf100_vmm_part(struct nvkm_vmm *, struct nvkm_memory *); +int gf100_vmm_aper(enum nvkm_memory_target); +int gf100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); +void gf100_vmm_flush_(struct nvkm_vmm *, int); +void gf100_vmm_flush(struct nvkm_vmm *, int); + +int gk20a_vmm_aper(enum nvkm_memory_target); + +int gm200_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *, + struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gm200_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base); +int gm200_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); + +int gp100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); +int gp100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); +void gp100_vmm_flush(struct nvkm_vmm *, int); + +int nv04_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int nv41_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int nv44_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int nv50_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int g84_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gf100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gk104_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gk20a_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gm200_vmm_new_fixed(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gm200_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gm20b_vmm_new_fixed(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gm20b_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gp100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gp10b_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); + +#define VMM_PRINT(l,v,p,f,a...) do { \ + struct nvkm_vmm *_vmm = (v); \ + if (CONFIG_NOUVEAU_DEBUG >= (l) && _vmm->debug >= (l)) { \ + nvkm_printk_(&_vmm->mmu->subdev, 0, p, "%s: "f"\n", \ + _vmm->name, ##a); \ + } \ +} while(0) +#define VMM_DEBUG(v,f,a...) VMM_PRINT(NV_DBG_DEBUG, (v), info, f, ##a) +#define VMM_TRACE(v,f,a...) VMM_PRINT(NV_DBG_TRACE, (v), info, f, ##a) +#define VMM_SPAM(v,f,a...) VMM_PRINT(NV_DBG_SPAM , (v), dbg, f, ##a) + +#define VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL,BASE,SIZE,NEXT) do { \ + nvkm_kmap((PT)->memory); \ + while (PTEN) { \ + u64 _ptes = ((SIZE) - MAP->off) >> MAP->page->shift; \ + u64 _addr = ((BASE) + MAP->off); \ + \ + if (_ptes > PTEN) { \ + MAP->off += PTEN << MAP->page->shift; \ + _ptes = PTEN; \ + } else { \ + MAP->off = 0; \ + NEXT; \ + } \ + \ + VMM_SPAM(VMM, "ITER %08x %08x PTE(s)", PTEI, (u32)_ptes); \ + \ + FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \ + PTEI += _ptes; \ + PTEN -= _ptes; \ + }; \ + nvkm_done((PT)->memory); \ +} while(0) + +#define VMM_MAP_ITER_MEM(VMM,PT,PTEI,PTEN,MAP,FILL) \ + VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \ + ((u64)MAP->mem->offset << NVKM_RAM_MM_SHIFT), \ + ((u64)MAP->mem->length << NVKM_RAM_MM_SHIFT), \ + (MAP->mem = MAP->mem->next)) +#define VMM_MAP_ITER_DMA(VMM,PT,PTEI,PTEN,MAP,FILL) \ + VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \ + *MAP->dma, PAGE_SIZE, MAP->dma++) +#define VMM_MAP_ITER_SGL(VMM,PT,PTEI,PTEN,MAP,FILL) \ + VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \ + sg_dma_address(MAP->sgl), sg_dma_len(MAP->sgl), \ + (MAP->sgl = sg_next(MAP->sgl))) + +#define VMM_FO(m,o,d,c,b) nvkm_fo##b((m)->memory, (o), (d), (c)) +#define VMM_WO(m,o,d,c,b) nvkm_wo##b((m)->memory, (o), (d)) +#define VMM_XO(m,v,o,d,c,b,fn,f,a...) do { \ + const u32 _pteo = (o); u##b _data = (d); \ + VMM_SPAM((v), " %010llx "f, (m)->addr + _pteo, _data, ##a); \ + VMM_##fn((m), (m)->base + _pteo, _data, (c), b); \ +} while(0) + +#define VMM_WO032(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 32, WO, "%08x") +#define VMM_FO032(m,v,o,d,c) \ + VMM_XO((m),(v),(o),(d),(c), 32, FO, "%08x %08x", (c)) + +#define VMM_WO064(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 64, WO, "%016llx") +#define VMM_FO064(m,v,o,d,c) \ + VMM_XO((m),(v),(o),(d),(c), 64, FO, "%016llx %08x", (c)) + +#define VMM_XO128(m,v,o,lo,hi,c,f,a...) do { \ + u32 _pteo = (o), _ptes = (c); \ + const u64 _addr = (m)->addr + _pteo; \ + VMM_SPAM((v), " %010llx %016llx%016llx"f, _addr, (hi), (lo), ##a); \ + while (_ptes--) { \ + nvkm_wo64((m)->memory, (m)->base + _pteo + 0, (lo)); \ + nvkm_wo64((m)->memory, (m)->base + _pteo + 8, (hi)); \ + _pteo += 0x10; \ + } \ +} while(0) + +#define VMM_WO128(m,v,o,lo,hi) VMM_XO128((m),(v),(o),(lo),(hi), 1, "") +#define VMM_FO128(m,v,o,lo,hi,c) do { \ + nvkm_kmap((m)->memory); \ + VMM_XO128((m),(v),(o),(lo),(hi),(c), " %08x", (c)); \ + nvkm_done((m)->memory); \ +} while(0) +#endif |