1 /*
2 * Copyright 2017 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22 #include "vmm.h"
23
24 #include <nvif/ifb00d.h>
25 #include <nvif/unpack.h>
26
27 static void
gm200_vmm_pgt_sparse(struct nvkm_vmm * vmm,struct nvkm_mmu_pt * pt,u32 ptei,u32 ptes)28 gm200_vmm_pgt_sparse(struct nvkm_vmm *vmm,
29 struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
30 {
31 /* VALID_FALSE + VOL tells the MMU to treat the PTE as sparse. */
32 VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(32) /* VOL. */, ptes);
33 }
34
35 static const struct nvkm_vmm_desc_func
36 gm200_vmm_spt = {
37 .unmap = gf100_vmm_pgt_unmap,
38 .sparse = gm200_vmm_pgt_sparse,
39 .mem = gf100_vmm_pgt_mem,
40 .dma = gf100_vmm_pgt_dma,
41 .sgl = gf100_vmm_pgt_sgl,
42 };
43
44 static const struct nvkm_vmm_desc_func
45 gm200_vmm_lpt = {
46 .invalid = gk104_vmm_lpt_invalid,
47 .unmap = gf100_vmm_pgt_unmap,
48 .sparse = gm200_vmm_pgt_sparse,
49 .mem = gf100_vmm_pgt_mem,
50 };
51
52 static void
gm200_vmm_pgd_sparse(struct nvkm_vmm * vmm,struct nvkm_mmu_pt * pt,u32 pdei,u32 pdes)53 gm200_vmm_pgd_sparse(struct nvkm_vmm *vmm,
54 struct nvkm_mmu_pt *pt, u32 pdei, u32 pdes)
55 {
56 /* VALID_FALSE + VOL_BIG tells the MMU to treat the PDE as sparse. */
57 VMM_FO064(pt, vmm, pdei * 8, BIT_ULL(35) /* VOL_BIG. */, pdes);
58 }
59
60 static const struct nvkm_vmm_desc_func
61 gm200_vmm_pgd = {
62 .unmap = gf100_vmm_pgt_unmap,
63 .sparse = gm200_vmm_pgd_sparse,
64 .pde = gf100_vmm_pgd_pde,
65 };
66
67 const struct nvkm_vmm_desc
68 gm200_vmm_desc_17_12[] = {
69 { SPT, 15, 8, 0x1000, &gm200_vmm_spt },
70 { PGD, 13, 8, 0x1000, &gm200_vmm_pgd },
71 {}
72 };
73
74 const struct nvkm_vmm_desc
75 gm200_vmm_desc_17_17[] = {
76 { LPT, 10, 8, 0x1000, &gm200_vmm_lpt },
77 { PGD, 13, 8, 0x1000, &gm200_vmm_pgd },
78 {}
79 };
80
81 const struct nvkm_vmm_desc
82 gm200_vmm_desc_16_12[] = {
83 { SPT, 14, 8, 0x1000, &gm200_vmm_spt },
84 { PGD, 14, 8, 0x1000, &gm200_vmm_pgd },
85 {}
86 };
87
88 const struct nvkm_vmm_desc
89 gm200_vmm_desc_16_16[] = {
90 { LPT, 10, 8, 0x1000, &gm200_vmm_lpt },
91 { PGD, 14, 8, 0x1000, &gm200_vmm_pgd },
92 {}
93 };
94
95 int
gm200_vmm_join_(struct nvkm_vmm * vmm,struct nvkm_memory * inst,u64 base)96 gm200_vmm_join_(struct nvkm_vmm *vmm, struct nvkm_memory *inst, u64 base)
97 {
98 if (vmm->func->page[1].shift == 16)
99 base |= BIT_ULL(11);
100 return gf100_vmm_join_(vmm, inst, base);
101 }
102
103 int
gm200_vmm_join(struct nvkm_vmm * vmm,struct nvkm_memory * inst)104 gm200_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
105 {
106 return gm200_vmm_join_(vmm, inst, 0);
107 }
108
109 static const struct nvkm_vmm_func
110 gm200_vmm_17 = {
111 .join = gm200_vmm_join,
112 .part = gf100_vmm_part,
113 .aper = gf100_vmm_aper,
114 .valid = gf100_vmm_valid,
115 .flush = gf100_vmm_flush,
116 .invalidate_pdb = gf100_vmm_invalidate_pdb,
117 .page = {
118 { 27, &gm200_vmm_desc_17_17[1], NVKM_VMM_PAGE_Sxxx },
119 { 17, &gm200_vmm_desc_17_17[0], NVKM_VMM_PAGE_SVxC },
120 { 12, &gm200_vmm_desc_17_12[0], NVKM_VMM_PAGE_SVHx },
121 {}
122 }
123 };
124
125 static const struct nvkm_vmm_func
126 gm200_vmm_16 = {
127 .join = gm200_vmm_join,
128 .part = gf100_vmm_part,
129 .aper = gf100_vmm_aper,
130 .valid = gf100_vmm_valid,
131 .flush = gf100_vmm_flush,
132 .invalidate_pdb = gf100_vmm_invalidate_pdb,
133 .page = {
134 { 27, &gm200_vmm_desc_16_16[1], NVKM_VMM_PAGE_Sxxx },
135 { 16, &gm200_vmm_desc_16_16[0], NVKM_VMM_PAGE_SVxC },
136 { 12, &gm200_vmm_desc_16_12[0], NVKM_VMM_PAGE_SVHx },
137 {}
138 }
139 };
140
141 int
gm200_vmm_new_(const struct nvkm_vmm_func * func_16,const struct nvkm_vmm_func * func_17,struct nvkm_mmu * mmu,bool managed,u64 addr,u64 size,void * argv,u32 argc,struct lock_class_key * key,const char * name,struct nvkm_vmm ** pvmm)142 gm200_vmm_new_(const struct nvkm_vmm_func *func_16,
143 const struct nvkm_vmm_func *func_17,
144 struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
145 void *argv, u32 argc, struct lock_class_key *key,
146 const char *name, struct nvkm_vmm **pvmm)
147 {
148 const struct nvkm_vmm_func *func;
149 union {
150 struct gm200_vmm_vn vn;
151 struct gm200_vmm_v0 v0;
152 } *args = argv;
153 int ret = -ENOSYS;
154
155 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
156 switch (args->v0.bigpage) {
157 case 16: func = func_16; break;
158 case 17: func = func_17; break;
159 default:
160 return -EINVAL;
161 }
162 } else
163 if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
164 func = func_17;
165 } else
166 return ret;
167
168 return nvkm_vmm_new_(func, mmu, 0, managed, addr, size, key, name, pvmm);
169 }
170
171 int
gm200_vmm_new(struct nvkm_mmu * mmu,bool managed,u64 addr,u64 size,void * argv,u32 argc,struct lock_class_key * key,const char * name,struct nvkm_vmm ** pvmm)172 gm200_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
173 void *argv, u32 argc, struct lock_class_key *key,
174 const char *name, struct nvkm_vmm **pvmm)
175 {
176 return gm200_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, managed, addr,
177 size, argv, argc, key, name, pvmm);
178 }
179
180 int
gm200_vmm_new_fixed(struct nvkm_mmu * mmu,bool managed,u64 addr,u64 size,void * argv,u32 argc,struct lock_class_key * key,const char * name,struct nvkm_vmm ** pvmm)181 gm200_vmm_new_fixed(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
182 void *argv, u32 argc, struct lock_class_key *key,
183 const char *name, struct nvkm_vmm **pvmm)
184 {
185 return gf100_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, managed, addr,
186 size, argv, argc, key, name, pvmm);
187 }
188