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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | /* * Copyright 2017 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #include <nvif/mmu.h> #include <nvif/class.h> #include <nvif/if0008.h> void nvif_mmu_fini(struct nvif_mmu *mmu) { kfree(mmu->kind); kfree(mmu->type); kfree(mmu->heap); nvif_object_fini(&mmu->object); } int nvif_mmu_init(struct nvif_object *parent, s32 oclass, struct nvif_mmu *mmu) { struct nvif_mmu_v0 args; int ret, i; args.version = 0; mmu->heap = NULL; mmu->type = NULL; mmu->kind = NULL; ret = nvif_object_init(parent, 0, oclass, &args, sizeof(args), &mmu->object); if (ret) goto done; mmu->dmabits = args.dmabits; mmu->heap_nr = args.heap_nr; mmu->type_nr = args.type_nr; mmu->kind_nr = args.kind_nr; mmu->heap = kmalloc(sizeof(*mmu->heap) * mmu->heap_nr, GFP_KERNEL); mmu->type = kmalloc(sizeof(*mmu->type) * mmu->type_nr, GFP_KERNEL); if (ret = -ENOMEM, !mmu->heap || !mmu->type) goto done; mmu->kind = kmalloc(sizeof(*mmu->kind) * mmu->kind_nr, GFP_KERNEL); if (!mmu->kind && mmu->kind_nr) goto done; for (i = 0; i < mmu->heap_nr; i++) { struct nvif_mmu_heap_v0 args = { .index = i }; ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_HEAP, &args, sizeof(args)); if (ret) goto done; mmu->heap[i].size = args.size; } for (i = 0; i < mmu->type_nr; i++) { struct nvif_mmu_type_v0 args = { .index = i }; ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_TYPE, &args, sizeof(args)); if (ret) goto done; mmu->type[i].type = 0; if (args.vram) mmu->type[i].type |= NVIF_MEM_VRAM; if (args.host) mmu->type[i].type |= NVIF_MEM_HOST; if (args.comp) mmu->type[i].type |= NVIF_MEM_COMP; if (args.disp) mmu->type[i].type |= NVIF_MEM_DISP; if (args.kind ) mmu->type[i].type |= NVIF_MEM_KIND; if (args.mappable) mmu->type[i].type |= NVIF_MEM_MAPPABLE; if (args.coherent) mmu->type[i].type |= NVIF_MEM_COHERENT; if (args.uncached) mmu->type[i].type |= NVIF_MEM_UNCACHED; mmu->type[i].heap = args.heap; } if (mmu->kind_nr) { struct nvif_mmu_kind_v0 *kind; u32 argc = sizeof(*kind) + sizeof(*kind->data) * mmu->kind_nr; if (ret = -ENOMEM, !(kind = kmalloc(argc, GFP_KERNEL))) goto done; kind->version = 0; kind->count = mmu->kind_nr; ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_KIND, kind, argc); if (ret == 0) memcpy(mmu->kind, kind->data, kind->count); kfree(kind); } done: if (ret) nvif_mmu_fini(mmu); return ret; } |