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1/*2 * Copyright 2017 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 */22#include <nvif/mem.h>23#include <nvif/client.h>24 25#include <nvif/if000a.h>26 27int28nvif_mem_ctor_map(struct nvif_mmu *mmu, const char *name, u8 type, u64 size,29 struct nvif_mem *mem)30{31 int ret = nvif_mem_ctor(mmu, name, mmu->mem, NVIF_MEM_MAPPABLE | type,32 0, size, NULL, 0, mem);33 if (ret == 0) {34 ret = nvif_object_map(&mem->object, NULL, 0);35 if (ret)36 nvif_mem_dtor(mem);37 }38 return ret;39}40 41void42nvif_mem_dtor(struct nvif_mem *mem)43{44 nvif_object_dtor(&mem->object);45}46 47int48nvif_mem_ctor_type(struct nvif_mmu *mmu, const char *name, s32 oclass,49 int type, u8 page, u64 size, void *argv, u32 argc,50 struct nvif_mem *mem)51{52 struct nvif_mem_v0 *args;53 u8 stack[128];54 int ret;55 56 mem->object.client = NULL;57 if (type < 0)58 return -EINVAL;59 60 if (sizeof(*args) + argc > sizeof(stack)) {61 if (!(args = kmalloc(sizeof(*args) + argc, GFP_KERNEL)))62 return -ENOMEM;63 } else {64 args = (void *)stack;65 }66 args->version = 0;67 args->type = type;68 args->page = page;69 args->size = size;70 memcpy(args->data, argv, argc);71 72 ret = nvif_object_ctor(&mmu->object, name ? name : "nvifMem", 0, oclass,73 args, sizeof(*args) + argc, &mem->object);74 if (ret == 0) {75 mem->type = mmu->type[type].type;76 mem->page = args->page;77 mem->addr = args->addr;78 mem->size = args->size;79 }80 81 if (args != (void *)stack)82 kfree(args);83 return ret;84 85}86 87int88nvif_mem_ctor(struct nvif_mmu *mmu, const char *name, s32 oclass, u8 type,89 u8 page, u64 size, void *argv, u32 argc, struct nvif_mem *mem)90{91 int ret = -EINVAL, i;92 93 mem->object.client = NULL;94 95 for (i = 0; ret && i < mmu->type_nr; i++) {96 if ((mmu->type[i].type & type) == type) {97 ret = nvif_mem_ctor_type(mmu, name, oclass, i, page,98 size, argv, argc, mem);99 }100 }101 102 return ret;103}104