subdev/mmu/gm20b.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 "mem.h"
0023 #include "vmm.h"
0024
0025 #include <subdev/fb.h>
0026
0027 #include <nvif/class.h>
0028
0029 static const struct nvkm_mmu_func
0030 gm20b_mmu = {
0031     .dma_bits = 40,
0032     .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
0033     .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
0034     .vmm = {{ -1,  0, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new },
0035     .kind = gm200_mmu_kind,
0036     .kind_sys = true,
0037 };
0038
0039 static const struct nvkm_mmu_func
0040 gm20b_mmu_fixed = {
0041     .dma_bits = 40,
0042     .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
0043     .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
0044     .vmm = {{ -1, -1, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new_fixed },
0045     .kind = gm200_mmu_kind,
0046     .kind_sys = true,
0047 };
0048
0049 int
0050 gm20b_mmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
0051           struct nvkm_mmu **pmmu)
0052 {
0053     if (device->fb->page)
0054         return nvkm_mmu_new_(&gm20b_mmu_fixed, device, type, inst, pmmu);
0055     return nvkm_mmu_new_(&gm20b_mmu, device, type, inst, pmmu);
0056 }