xref: /netbsd-src/sys/external/bsd/drm2/dist/drm/nouveau/nvkm/subdev/mmu/nouveau_nvkm_subdev_mmu_vmmgk20a.c (revision 41ec02673d281bbb3d38e6c78504ce6e30c228c1)
1 /*	$NetBSD: nouveau_nvkm_subdev_mmu_vmmgk20a.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_vmmgk20a.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $");
26 
27 #include "vmm.h"
28 
29 #include <core/memory.h>
30 
31 int
gk20a_vmm_aper(enum nvkm_memory_target target)32 gk20a_vmm_aper(enum nvkm_memory_target target)
33 {
34 	switch (target) {
35 	case NVKM_MEM_TARGET_NCOH: return 0;
36 	default:
37 		return -EINVAL;
38 	}
39 }
40 
41 static const struct nvkm_vmm_func
42 gk20a_vmm_17 = {
43 	.join = gf100_vmm_join,
44 	.part = gf100_vmm_part,
45 	.aper = gf100_vmm_aper,
46 	.valid = gf100_vmm_valid,
47 	.flush = gf100_vmm_flush,
48 	.invalidate_pdb = gf100_vmm_invalidate_pdb,
49 	.page = {
50 		{ 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xxHC },
51 		{ 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xxHx },
52 		{}
53 	}
54 };
55 
56 static const struct nvkm_vmm_func
57 gk20a_vmm_16 = {
58 	.join = gf100_vmm_join,
59 	.part = gf100_vmm_part,
60 	.aper = gf100_vmm_aper,
61 	.valid = gf100_vmm_valid,
62 	.flush = gf100_vmm_flush,
63 	.invalidate_pdb = gf100_vmm_invalidate_pdb,
64 	.page = {
65 		{ 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xxHC },
66 		{ 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xxHx },
67 		{}
68 	}
69 };
70 
71 int
gk20a_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)72 gk20a_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
73 	      void *argv, u32 argc, struct lock_class_key *key,
74 	      const char *name, struct nvkm_vmm **pvmm)
75 {
76 	return gf100_vmm_new_(&gk20a_vmm_16, &gk20a_vmm_17, mmu, managed, addr,
77 			      size, argv, argc, key, name, pvmm);
78 }
79