1 /* $NetBSD: nouveau_nvkm_subdev_mmu_vmmgk104.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $ */
2
3 /*
4 * Copyright 2017 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24 #include <sys/cdefs.h>
25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_mmu_vmmgk104.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $");
26
27 #include "vmm.h"
28
29 void
gk104_vmm_lpt_invalid(struct nvkm_vmm * vmm,struct nvkm_mmu_pt * pt,u32 ptei,u32 ptes)30 gk104_vmm_lpt_invalid(struct nvkm_vmm *vmm,
31 struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
32 {
33 /* VALID_FALSE + PRIV tells the MMU to ignore corresponding SPTEs. */
34 VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(1) /* PRIV. */, ptes);
35 }
36
37 static const struct nvkm_vmm_desc_func
38 gk104_vmm_lpt = {
39 .invalid = gk104_vmm_lpt_invalid,
40 .unmap = gf100_vmm_pgt_unmap,
41 .mem = gf100_vmm_pgt_mem,
42 };
43
44 const struct nvkm_vmm_desc
45 gk104_vmm_desc_17_12[] = {
46 { SPT, 15, 8, 0x1000, &gf100_vmm_pgt },
47 { PGD, 13, 8, 0x1000, &gf100_vmm_pgd },
48 {}
49 };
50
51 const struct nvkm_vmm_desc
52 gk104_vmm_desc_17_17[] = {
53 { LPT, 10, 8, 0x1000, &gk104_vmm_lpt },
54 { PGD, 13, 8, 0x1000, &gf100_vmm_pgd },
55 {}
56 };
57
58 const struct nvkm_vmm_desc
59 gk104_vmm_desc_16_12[] = {
60 { SPT, 14, 8, 0x1000, &gf100_vmm_pgt },
61 { PGD, 14, 8, 0x1000, &gf100_vmm_pgd },
62 {}
63 };
64
65 const struct nvkm_vmm_desc
66 gk104_vmm_desc_16_16[] = {
67 { LPT, 10, 8, 0x1000, &gk104_vmm_lpt },
68 { PGD, 14, 8, 0x1000, &gf100_vmm_pgd },
69 {}
70 };
71
72 static const struct nvkm_vmm_func
73 gk104_vmm_17 = {
74 .join = gf100_vmm_join,
75 .part = gf100_vmm_part,
76 .aper = gf100_vmm_aper,
77 .valid = gf100_vmm_valid,
78 .flush = gf100_vmm_flush,
79 .invalidate_pdb = gf100_vmm_invalidate_pdb,
80 .page = {
81 { 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xVxC },
82 { 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xVHx },
83 {}
84 }
85 };
86
87 static const struct nvkm_vmm_func
88 gk104_vmm_16 = {
89 .join = gf100_vmm_join,
90 .part = gf100_vmm_part,
91 .aper = gf100_vmm_aper,
92 .valid = gf100_vmm_valid,
93 .flush = gf100_vmm_flush,
94 .invalidate_pdb = gf100_vmm_invalidate_pdb,
95 .page = {
96 { 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xVxC },
97 { 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xVHx },
98 {}
99 }
100 };
101
102 int
gk104_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)103 gk104_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
104 void *argv, u32 argc, struct lock_class_key *key,
105 const char *name, struct nvkm_vmm **pvmm)
106 {
107 return gf100_vmm_new_(&gk104_vmm_16, &gk104_vmm_17, mmu, managed, addr,
108 size, argv, argc, key, name, pvmm);
109 }
110