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