132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/*
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* Copyright 2017 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <nvif/mmu.h>
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#include <nvif/class.h>
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#include <nvif/if0008.h>
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void
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nvif_mmu_fini(struct nvif_mmu *mmu)
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{
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kfree(mmu->kind);
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kfree(mmu->type);
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kfree(mmu->heap);
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nvif_object_fini(&mmu->object);
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}
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int
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nvif_mmu_init(struct nvif_object *parent, s32 oclass, struct nvif_mmu *mmu)
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{
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static const struct nvif_mclass mems[] = {
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{ NVIF_CLASS_MEM_GF100, -1 },
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{ NVIF_CLASS_MEM_NV50 , -1 },
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{ NVIF_CLASS_MEM_NV04 , -1 },
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{}
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};
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struct nvif_mmu_v0 args;
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int ret, i;
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args.version = 0;
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mmu->heap = NULL;
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mmu->type = NULL;
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mmu->kind = NULL;
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ret = nvif_object_init(parent, 0, oclass, &args, sizeof(args),
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&mmu->object);
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if (ret)
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goto done;
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mmu->dmabits = args.dmabits;
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mmu->heap_nr = args.heap_nr;
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mmu->type_nr = args.type_nr;
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mmu->kind_nr = args.kind_nr;
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ret = nvif_mclass(&mmu->object, mems);
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if (ret < 0)
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goto done;
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mmu->mem = mems[ret].oclass;
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mmu->heap = kmalloc_array(mmu->heap_nr, sizeof(*mmu->heap),
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GFP_KERNEL);
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mmu->type = kmalloc_array(mmu->type_nr, sizeof(*mmu->type),
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GFP_KERNEL);
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if (ret = -ENOMEM, !mmu->heap || !mmu->type)
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goto done;
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mmu->kind = kmalloc_array(mmu->kind_nr, sizeof(*mmu->kind),
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GFP_KERNEL);
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if (!mmu->kind && mmu->kind_nr)
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goto done;
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for (i = 0; i < mmu->heap_nr; i++) {
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struct nvif_mmu_heap_v0 args = { .index = i };
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ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_HEAP,
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&args, sizeof(args));
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if (ret)
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goto done;
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mmu->heap[i].size = args.size;
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}
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for (i = 0; i < mmu->type_nr; i++) {
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struct nvif_mmu_type_v0 args = { .index = i };
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ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_TYPE,
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&args, sizeof(args));
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if (ret)
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goto done;
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mmu->type[i].type = 0;
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if (args.vram) mmu->type[i].type |= NVIF_MEM_VRAM;
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if (args.host) mmu->type[i].type |= NVIF_MEM_HOST;
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if (args.comp) mmu->type[i].type |= NVIF_MEM_COMP;
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if (args.disp) mmu->type[i].type |= NVIF_MEM_DISP;
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if (args.kind ) mmu->type[i].type |= NVIF_MEM_KIND;
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if (args.mappable) mmu->type[i].type |= NVIF_MEM_MAPPABLE;
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if (args.coherent) mmu->type[i].type |= NVIF_MEM_COHERENT;
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if (args.uncached) mmu->type[i].type |= NVIF_MEM_UNCACHED;
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mmu->type[i].heap = args.heap;
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}
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if (mmu->kind_nr) {
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struct nvif_mmu_kind_v0 *kind;
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u32 argc = sizeof(*kind) + sizeof(*kind->data) * mmu->kind_nr;
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if (ret = -ENOMEM, !(kind = kmalloc(argc, GFP_KERNEL)))
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goto done;
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kind->version = 0;
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kind->count = mmu->kind_nr;
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ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_KIND,
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kind, argc);
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if (ret == 0)
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memcpy(mmu->kind, kind->data, kind->count);
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kfree(kind);
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}
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done:
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if (ret)
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nvif_mmu_fini(mmu);
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return ret;
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}
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