vmmgm200.c

  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
 27static void
 28gm200_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
 35static const struct nvkm_vmm_desc_func
 36gm200_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
 44static const struct nvkm_vmm_desc_func
 45gm200_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
 52static void
 53gm200_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
 60static const struct nvkm_vmm_desc_func
 61gm200_vmm_pgd = {
 62	.unmap = gf100_vmm_pgt_unmap,
 63	.sparse = gm200_vmm_pgd_sparse,
 64	.pde = gf100_vmm_pgd_pde,
 65};
 66
 67const struct nvkm_vmm_desc
 68gm200_vmm_desc_17_12[] = {
 69	{ SPT, 15, 8, 0x1000, &gm200_vmm_spt },
 70	{ PGD, 13, 8, 0x1000, &gm200_vmm_pgd },
 71	{}
 72};
 73
 74const struct nvkm_vmm_desc
 75gm200_vmm_desc_17_17[] = {
 76	{ LPT, 10, 8, 0x1000, &gm200_vmm_lpt },
 77	{ PGD, 13, 8, 0x1000, &gm200_vmm_pgd },
 78	{}
 79};
 80
 81const struct nvkm_vmm_desc
 82gm200_vmm_desc_16_12[] = {
 83	{ SPT, 14, 8, 0x1000, &gm200_vmm_spt },
 84	{ PGD, 14, 8, 0x1000, &gm200_vmm_pgd },
 85	{}
 86};
 87
 88const struct nvkm_vmm_desc
 89gm200_vmm_desc_16_16[] = {
 90	{ LPT, 10, 8, 0x1000, &gm200_vmm_lpt },
 91	{ PGD, 14, 8, 0x1000, &gm200_vmm_pgd },
 92	{}
 93};
 94
 95int
 96gm200_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
103int
104gm200_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
105{
106	return gm200_vmm_join_(vmm, inst, 0);
107}
108
109static const struct nvkm_vmm_func
110gm200_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
125static const struct nvkm_vmm_func
126gm200_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
141int
142gm200_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
171int
172gm200_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
180int
181gm200_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}