cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

gm20b.c (2049B)

      1/*
      2 * Copyright 2017 Red Hat Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * 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 OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 */
     22#include "mem.h"
     23#include "vmm.h"
     24
     25#include <subdev/fb.h>
     26
     27#include <nvif/class.h>
     28
     29static const struct nvkm_mmu_func
     30gm20b_mmu = {
     31	.dma_bits = 40,
     32	.mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
     33	.mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
     34	.vmm = {{ -1,  0, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new },
     35	.kind = gm200_mmu_kind,
     36	.kind_sys = true,
     37};
     38
     39static const struct nvkm_mmu_func
     40gm20b_mmu_fixed = {
     41	.dma_bits = 40,
     42	.mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
     43	.mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
     44	.vmm = {{ -1, -1, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new_fixed },
     45	.kind = gm200_mmu_kind,
     46	.kind_sys = true,
     47};
     48
     49int
     50gm20b_mmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
     51	      struct nvkm_mmu **pmmu)
     52{
     53	if (device->fb->page)
     54		return nvkm_mmu_new_(&gm20b_mmu_fixed, device, type, inst, pmmu);
     55	return nvkm_mmu_new_(&gm20b_mmu, device, type, inst, pmmu);
     56}