4 #include <core/memory.h>
5 enum nvkm_memory_target;
8 /* Some GPUs have a mapping level with a dual page tables to
9 * support large and small pages in the same address-range.
11 * We track the state of both page tables in one place, which
12 * is why there's multiple PT pointers/refcounts here.
14 struct nvkm_mmu_pt *pt[2];
17 /* Page size handled by this PT.
19 * Tesla backend needs to know this when writinge PDEs,
20 * otherwise unnecessary.
24 /* Entire page table sparse.
26 * Used to propagate sparseness to child page tables.
30 /* Tracking for page directories.
32 * The array is indexed by PDE, and will either point to the
33 * child page table, or indicate the PDE is marked as sparse.
35 #define NVKM_VMM_PDE_INVALID(pde) IS_ERR_OR_NULL(pde)
36 #define NVKM_VMM_PDE_SPARSED(pde) IS_ERR(pde)
37 #define NVKM_VMM_PDE_SPARSE ERR_PTR(-EBUSY)
38 struct nvkm_vmm_pt **pde;
40 /* Tracking for dual page tables.
42 * There's one entry for each LPTE, keeping track of whether
43 * there are valid SPTEs in the same address-range.
45 * This information is used to manage LPTE state transitions.
47 #define NVKM_VMM_PTE_SPARSE 0x80
48 #define NVKM_VMM_PTE_VALID 0x40
49 #define NVKM_VMM_PTE_SPTES 0x3f
53 typedef void (*nvkm_vmm_pxe_func)(struct nvkm_vmm *,
54 struct nvkm_mmu_pt *, u32 ptei, u32 ptes);
55 typedef void (*nvkm_vmm_pde_func)(struct nvkm_vmm *,
56 struct nvkm_vmm_pt *, u32 pdei);
57 typedef void (*nvkm_vmm_pte_func)(struct nvkm_vmm *, struct nvkm_mmu_pt *,
58 u32 ptei, u32 ptes, struct nvkm_vmm_map *);
60 struct nvkm_vmm_desc_func {
61 nvkm_vmm_pxe_func invalid;
62 nvkm_vmm_pxe_func unmap;
63 nvkm_vmm_pxe_func sparse;
65 nvkm_vmm_pde_func pde;
67 nvkm_vmm_pte_func mem;
68 nvkm_vmm_pte_func dma;
69 nvkm_vmm_pte_func sgl;
71 nvkm_vmm_pte_func pfn;
72 bool (*pfn_clear)(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32 ptei, u32 ptes);
73 nvkm_vmm_pxe_func pfn_unmap;
76 extern const struct nvkm_vmm_desc_func gf100_vmm_pgd;
77 void gf100_vmm_pgd_pde(struct nvkm_vmm *, struct nvkm_vmm_pt *, u32);
78 extern const struct nvkm_vmm_desc_func gf100_vmm_pgt;
79 void gf100_vmm_pgt_unmap(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32);
80 void gf100_vmm_pgt_mem(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32,
81 struct nvkm_vmm_map *);
82 void gf100_vmm_pgt_dma(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32,
83 struct nvkm_vmm_map *);
84 void gf100_vmm_pgt_sgl(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32,
85 struct nvkm_vmm_map *);
87 void gk104_vmm_lpt_invalid(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32);
89 struct nvkm_vmm_desc {
96 u8 bits; /* VMA bits covered by PT. */
97 u8 size; /* Bytes-per-PTE. */
98 u32 align; /* PT address alignment. */
99 const struct nvkm_vmm_desc_func *func;
102 extern const struct nvkm_vmm_desc nv50_vmm_desc_12[];
103 extern const struct nvkm_vmm_desc nv50_vmm_desc_16[];
105 extern const struct nvkm_vmm_desc gk104_vmm_desc_16_12[];
106 extern const struct nvkm_vmm_desc gk104_vmm_desc_16_16[];
107 extern const struct nvkm_vmm_desc gk104_vmm_desc_17_12[];
108 extern const struct nvkm_vmm_desc gk104_vmm_desc_17_17[];
110 extern const struct nvkm_vmm_desc gm200_vmm_desc_16_12[];
111 extern const struct nvkm_vmm_desc gm200_vmm_desc_16_16[];
112 extern const struct nvkm_vmm_desc gm200_vmm_desc_17_12[];
113 extern const struct nvkm_vmm_desc gm200_vmm_desc_17_17[];
115 extern const struct nvkm_vmm_desc gp100_vmm_desc_12[];
116 extern const struct nvkm_vmm_desc gp100_vmm_desc_16[];
118 struct nvkm_vmm_page {
120 const struct nvkm_vmm_desc *desc;
121 #define NVKM_VMM_PAGE_SPARSE 0x01
122 #define NVKM_VMM_PAGE_VRAM 0x02
123 #define NVKM_VMM_PAGE_HOST 0x04
124 #define NVKM_VMM_PAGE_COMP 0x08
125 #define NVKM_VMM_PAGE_Sxxx (NVKM_VMM_PAGE_SPARSE)
126 #define NVKM_VMM_PAGE_xVxx (NVKM_VMM_PAGE_VRAM)
127 #define NVKM_VMM_PAGE_SVxx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_VRAM)
128 #define NVKM_VMM_PAGE_xxHx (NVKM_VMM_PAGE_HOST)
129 #define NVKM_VMM_PAGE_SxHx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_HOST)
130 #define NVKM_VMM_PAGE_xVHx (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_HOST)
131 #define NVKM_VMM_PAGE_SVHx (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_HOST)
132 #define NVKM_VMM_PAGE_xVxC (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_COMP)
133 #define NVKM_VMM_PAGE_SVxC (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_COMP)
134 #define NVKM_VMM_PAGE_xxHC (NVKM_VMM_PAGE_xxHx | NVKM_VMM_PAGE_COMP)
135 #define NVKM_VMM_PAGE_SxHC (NVKM_VMM_PAGE_SxHx | NVKM_VMM_PAGE_COMP)
139 struct nvkm_vmm_func {
140 int (*join)(struct nvkm_vmm *, struct nvkm_memory *inst);
141 void (*part)(struct nvkm_vmm *, struct nvkm_memory *inst);
143 int (*aper)(enum nvkm_memory_target);
144 int (*valid)(struct nvkm_vmm *, void *argv, u32 argc,
145 struct nvkm_vmm_map *);
146 void (*flush)(struct nvkm_vmm *, int depth);
148 void (*invalidate_pdb)(struct nvkm_vmm *, u64 addr);
151 const struct nvkm_vmm_page page[];
154 struct nvkm_vmm_join {
155 struct nvkm_memory *inst;
156 struct list_head head;
159 int nvkm_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *,
160 u32 pd_header, bool managed, u64 addr, u64 size,
161 struct lock_class_key *, const char *name,
163 int nvkm_vmm_ctor(const struct nvkm_vmm_func *, struct nvkm_mmu *,
164 u32 pd_header, bool managed, u64 addr, u64 size,
165 struct lock_class_key *, const char *name, struct nvkm_vmm *);
166 struct nvkm_vma *nvkm_vmm_node_search(struct nvkm_vmm *, u64 addr);
167 struct nvkm_vma *nvkm_vmm_node_split(struct nvkm_vmm *, struct nvkm_vma *,
169 int nvkm_vmm_get_locked(struct nvkm_vmm *, bool getref, bool mapref,
170 bool sparse, u8 page, u8 align, u64 size,
171 struct nvkm_vma **pvma);
172 void nvkm_vmm_put_locked(struct nvkm_vmm *, struct nvkm_vma *);
173 void nvkm_vmm_unmap_locked(struct nvkm_vmm *, struct nvkm_vma *, bool pfn);
174 void nvkm_vmm_unmap_region(struct nvkm_vmm *, struct nvkm_vma *);
176 #define NVKM_VMM_PFN_ADDR 0xfffffffffffff000ULL
177 #define NVKM_VMM_PFN_ADDR_SHIFT 12
178 #define NVKM_VMM_PFN_APER 0x00000000000000f0ULL
179 #define NVKM_VMM_PFN_HOST 0x0000000000000000ULL
180 #define NVKM_VMM_PFN_VRAM 0x0000000000000010ULL
181 #define NVKM_VMM_PFN_W 0x0000000000000002ULL
182 #define NVKM_VMM_PFN_V 0x0000000000000001ULL
183 #define NVKM_VMM_PFN_NONE 0x0000000000000000ULL
185 int nvkm_vmm_pfn_map(struct nvkm_vmm *, u8 page, u64 addr, u64 size, u64 *pfn);
186 int nvkm_vmm_pfn_unmap(struct nvkm_vmm *, u64 addr, u64 size);
188 struct nvkm_vma *nvkm_vma_tail(struct nvkm_vma *, u64 tail);
190 int nv04_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, u32,
191 bool, u64, u64, void *, u32, struct lock_class_key *,
192 const char *, struct nvkm_vmm **);
193 int nv04_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
195 int nv50_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
196 void nv50_vmm_part(struct nvkm_vmm *, struct nvkm_memory *);
197 int nv50_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
198 void nv50_vmm_flush(struct nvkm_vmm *, int);
200 int gf100_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *,
201 struct nvkm_mmu *, bool, u64, u64, void *, u32,
202 struct lock_class_key *, const char *, struct nvkm_vmm **);
203 int gf100_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base);
204 int gf100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
205 void gf100_vmm_part(struct nvkm_vmm *, struct nvkm_memory *);
206 int gf100_vmm_aper(enum nvkm_memory_target);
207 int gf100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
208 void gf100_vmm_flush(struct nvkm_vmm *, int);
209 void gf100_vmm_invalidate(struct nvkm_vmm *, u32 type);
210 void gf100_vmm_invalidate_pdb(struct nvkm_vmm *, u64 addr);
212 int gk20a_vmm_aper(enum nvkm_memory_target);
214 int gm200_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *,
215 struct nvkm_mmu *, bool, u64, u64, void *, u32,
216 struct lock_class_key *, const char *, struct nvkm_vmm **);
217 int gm200_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base);
218 int gm200_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
220 int gp100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
221 int gp100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
222 void gp100_vmm_flush(struct nvkm_vmm *, int);
223 void gp100_vmm_invalidate_pdb(struct nvkm_vmm *, u64 addr);
225 int gv100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
227 int nv04_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
228 struct lock_class_key *, const char *, struct nvkm_vmm **);
229 int nv41_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
230 struct lock_class_key *, const char *, struct nvkm_vmm **);
231 int nv44_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
232 struct lock_class_key *, const char *, struct nvkm_vmm **);
233 int nv50_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
234 struct lock_class_key *, const char *, struct nvkm_vmm **);
235 int mcp77_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
236 struct lock_class_key *, const char *, struct nvkm_vmm **);
237 int g84_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
238 struct lock_class_key *, const char *, struct nvkm_vmm **);
239 int gf100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
240 struct lock_class_key *, const char *, struct nvkm_vmm **);
241 int gk104_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
242 struct lock_class_key *, const char *, struct nvkm_vmm **);
243 int gk20a_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
244 struct lock_class_key *, const char *, struct nvkm_vmm **);
245 int gm200_vmm_new_fixed(struct nvkm_mmu *, bool, u64, u64, void *, u32,
246 struct lock_class_key *, const char *,
248 int gm200_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
249 struct lock_class_key *, const char *,
251 int gm20b_vmm_new_fixed(struct nvkm_mmu *, bool, u64, u64, void *, u32,
252 struct lock_class_key *, const char *,
254 int gm20b_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
255 struct lock_class_key *, const char *,
257 int gp100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
258 struct lock_class_key *, const char *,
260 int gp10b_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
261 struct lock_class_key *, const char *,
263 int gv100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
264 struct lock_class_key *, const char *,
266 int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
267 struct lock_class_key *, const char *,
270 #define VMM_PRINT(l,v,p,f,a...) do { \
271 struct nvkm_vmm *_vmm = (v); \
272 if (CONFIG_NOUVEAU_DEBUG >= (l) && _vmm->debug >= (l)) { \
273 nvkm_printk_(&_vmm->mmu->subdev, 0, p, "%s: "f"\n", \
277 #define VMM_DEBUG(v,f,a...) VMM_PRINT(NV_DBG_DEBUG, (v), info, f, ##a)
278 #define VMM_TRACE(v,f,a...) VMM_PRINT(NV_DBG_TRACE, (v), info, f, ##a)
279 #define VMM_SPAM(v,f,a...) VMM_PRINT(NV_DBG_SPAM , (v), dbg, f, ##a)
281 #define VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL,BASE,SIZE,NEXT) do { \
282 nvkm_kmap((PT)->memory); \
284 u64 _ptes = ((SIZE) - MAP->off) >> MAP->page->shift; \
285 u64 _addr = ((BASE) + MAP->off); \
287 if (_ptes > PTEN) { \
288 MAP->off += PTEN << MAP->page->shift; \
295 VMM_SPAM(VMM, "ITER %08x %08x PTE(s)", PTEI, (u32)_ptes); \
297 FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \
301 nvkm_done((PT)->memory); \
304 #define VMM_MAP_ITER_MEM(VMM,PT,PTEI,PTEN,MAP,FILL) \
305 VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \
306 ((u64)MAP->mem->offset << NVKM_RAM_MM_SHIFT), \
307 ((u64)MAP->mem->length << NVKM_RAM_MM_SHIFT), \
308 (MAP->mem = MAP->mem->next))
309 #define VMM_MAP_ITER_DMA(VMM,PT,PTEI,PTEN,MAP,FILL) \
310 VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \
311 *MAP->dma, PAGE_SIZE, MAP->dma++)
312 #define VMM_MAP_ITER_SGL(VMM,PT,PTEI,PTEN,MAP,FILL) \
313 VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \
314 sg_dma_address(MAP->sgl), sg_dma_len(MAP->sgl), \
315 (MAP->sgl = sg_next(MAP->sgl)))
317 #define VMM_FO(m,o,d,c,b) nvkm_fo##b((m)->memory, (o), (d), (c))
318 #define VMM_WO(m,o,d,c,b) nvkm_wo##b((m)->memory, (o), (d))
319 #define VMM_XO(m,v,o,d,c,b,fn,f,a...) do { \
320 const u32 _pteo = (o); u##b _data = (d); \
321 VMM_SPAM((v), " %010llx "f, (m)->addr + _pteo, _data, ##a); \
322 VMM_##fn((m), (m)->base + _pteo, _data, (c), b); \
325 #define VMM_WO032(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 32, WO, "%08x")
326 #define VMM_FO032(m,v,o,d,c) \
327 VMM_XO((m),(v),(o),(d),(c), 32, FO, "%08x %08x", (c))
329 #define VMM_WO064(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 64, WO, "%016llx")
330 #define VMM_FO064(m,v,o,d,c) \
331 VMM_XO((m),(v),(o),(d),(c), 64, FO, "%016llx %08x", (c))
333 #define VMM_XO128(m,v,o,lo,hi,c,f,a...) do { \
334 u32 _pteo = (o), _ptes = (c); \
335 const u64 _addr = (m)->addr + _pteo; \
336 VMM_SPAM((v), " %010llx %016llx%016llx"f, _addr, (hi), (lo), ##a); \
338 nvkm_wo64((m)->memory, (m)->base + _pteo + 0, (lo)); \
339 nvkm_wo64((m)->memory, (m)->base + _pteo + 8, (hi)); \
344 #define VMM_WO128(m,v,o,lo,hi) VMM_XO128((m),(v),(o),(lo),(hi), 1, "")
345 #define VMM_FO128(m,v,o,lo,hi,c) do { \
346 nvkm_kmap((m)->memory); \
347 VMM_XO128((m),(v),(o),(lo),(hi),(c), " %08x", (c)); \
348 nvkm_done((m)->memory); \