subdev/mmu/vmmgk20a.c

0001 /*
0002  * Copyright 2017 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  */
0022 #include "vmm.h"
0023
0024 #include <core/memory.h>
0025
0026 int
0027 gk20a_vmm_aper(enum nvkm_memory_target target)
0028 {
0029     switch (target) {
0030     case NVKM_MEM_TARGET_NCOH: return 0;
0031     default:
0032         return -EINVAL;
0033     }
0034 }
0035
0036 static const struct nvkm_vmm_func
0037 gk20a_vmm_17 = {
0038     .join = gf100_vmm_join,
0039     .part = gf100_vmm_part,
0040     .aper = gf100_vmm_aper,
0041     .valid = gf100_vmm_valid,
0042     .flush = gf100_vmm_flush,
0043     .invalidate_pdb = gf100_vmm_invalidate_pdb,
0044     .page = {
0045         { 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xxHC },
0046         { 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xxHx },
0047         {}
0048     }
0049 };
0050
0051 static const struct nvkm_vmm_func
0052 gk20a_vmm_16 = {
0053     .join = gf100_vmm_join,
0054     .part = gf100_vmm_part,
0055     .aper = gf100_vmm_aper,
0056     .valid = gf100_vmm_valid,
0057     .flush = gf100_vmm_flush,
0058     .invalidate_pdb = gf100_vmm_invalidate_pdb,
0059     .page = {
0060         { 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xxHC },
0061         { 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xxHx },
0062         {}
0063     }
0064 };
0065
0066 int
0067 gk20a_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
0068           void *argv, u32 argc, struct lock_class_key *key,
0069           const char *name, struct nvkm_vmm **pvmm)
0070 {
0071     return gf100_vmm_new_(&gk20a_vmm_16, &gk20a_vmm_17, mmu, managed, addr,
0072                   size, argv, argc, key, name, pvmm);
0073 }