1 /* $NetBSD: nouveau_nvkm_subdev_mmu_vmmgv100.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $ */
2
3 /*
4 * Copyright 2018 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_vmmgv100.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $");
26
27 #include "vmm.h"
28
29 #include <subdev/fb.h>
30 #include <subdev/ltc.h>
31
32 #include <nvif/ifc00d.h>
33 #include <nvif/unpack.h>
34
35 int
gv100_vmm_join(struct nvkm_vmm * vmm,struct nvkm_memory * inst)36 gv100_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
37 {
38 u64 data[2], mask;
39 int ret = gp100_vmm_join(vmm, inst), i;
40 if (ret)
41 return ret;
42
43 nvkm_kmap(inst);
44 data[0] = nvkm_ro32(inst, 0x200);
45 data[1] = nvkm_ro32(inst, 0x204);
46 mask = BIT_ULL(0);
47
48 nvkm_wo32(inst, 0x21c, 0x00000000);
49
50 for (i = 0; i < 64; i++) {
51 if (mask & BIT_ULL(i)) {
52 nvkm_wo32(inst, 0x2a4 + (i * 0x10), data[1]);
53 nvkm_wo32(inst, 0x2a0 + (i * 0x10), data[0]);
54 } else {
55 nvkm_wo32(inst, 0x2a4 + (i * 0x10), 0x00000001);
56 nvkm_wo32(inst, 0x2a0 + (i * 0x10), 0x00000001);
57 }
58 nvkm_wo32(inst, 0x2a8 + (i * 0x10), 0x00000000);
59 }
60
61 nvkm_wo32(inst, 0x298, lower_32_bits(mask));
62 nvkm_wo32(inst, 0x29c, upper_32_bits(mask));
63 nvkm_done(inst);
64 return 0;
65 }
66
67 static const struct nvkm_vmm_func
68 gv100_vmm = {
69 .join = gv100_vmm_join,
70 .part = gf100_vmm_part,
71 .aper = gf100_vmm_aper,
72 .valid = gp100_vmm_valid,
73 .flush = gp100_vmm_flush,
74 .mthd = gp100_vmm_mthd,
75 .invalidate_pdb = gp100_vmm_invalidate_pdb,
76 .page = {
77 { 47, &gp100_vmm_desc_16[4], NVKM_VMM_PAGE_Sxxx },
78 { 38, &gp100_vmm_desc_16[3], NVKM_VMM_PAGE_Sxxx },
79 { 29, &gp100_vmm_desc_16[2], NVKM_VMM_PAGE_Sxxx },
80 { 21, &gp100_vmm_desc_16[1], NVKM_VMM_PAGE_SVxC },
81 { 16, &gp100_vmm_desc_16[0], NVKM_VMM_PAGE_SVxC },
82 { 12, &gp100_vmm_desc_12[0], NVKM_VMM_PAGE_SVHx },
83 {}
84 }
85 };
86
87 int
gv100_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)88 gv100_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
89 void *argv, u32 argc, struct lock_class_key *key,
90 const char *name, struct nvkm_vmm **pvmm)
91 {
92 return gp100_vmm_new_(&gv100_vmm, mmu, managed, addr, size,
93 argv, argc, key, name, pvmm);
94 }
95