LXR linux/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgv100.c

   1/*
   2 * Copyright 2018 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 "vmm.h"
  23
  24#include <subdev/fb.h>
  25#include <subdev/ltc.h>
  26
  27#include <nvif/ifc00d.h>
  28#include <nvif/unpack.h>
  29
  30int
  31gv100_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
  32{
  33        u64 data[2], mask;
  34        int ret = gp100_vmm_join(vmm, inst), i;
  35        if (ret)
  36                return ret;
  37
  38        nvkm_kmap(inst);
  39        data[0] = nvkm_ro32(inst, 0x200);
  40        data[1] = nvkm_ro32(inst, 0x204);
  41        mask = BIT_ULL(0);
  42
  43        nvkm_wo32(inst, 0x21c, 0x00000000);
  44
  45        for (i = 0; i < 64; i++) {
  46                if (mask & BIT_ULL(i)) {
  47                        nvkm_wo32(inst, 0x2a4 + (i * 0x10), data[1]);
  48                        nvkm_wo32(inst, 0x2a0 + (i * 0x10), data[0]);
  49                } else {
  50                        nvkm_wo32(inst, 0x2a4 + (i * 0x10), 0x00000001);
  51                        nvkm_wo32(inst, 0x2a0 + (i * 0x10), 0x00000001);
  52                }
  53                nvkm_wo32(inst, 0x2a8 + (i * 0x10), 0x00000000);
  54        }
  55
  56        nvkm_wo32(inst, 0x298, lower_32_bits(mask));
  57        nvkm_wo32(inst, 0x29c, upper_32_bits(mask));
  58        nvkm_done(inst);
  59        return 0;
  60}
  61
  62static const struct nvkm_vmm_func
  63gv100_vmm = {
  64        .join = gv100_vmm_join,
  65        .part = gf100_vmm_part,
  66        .aper = gf100_vmm_aper,
  67        .valid = gp100_vmm_valid,
  68        .flush = gp100_vmm_flush,
  69        .mthd = gp100_vmm_mthd,
  70        .invalidate_pdb = gp100_vmm_invalidate_pdb,
  71        .page = {
  72                { 47, &gp100_vmm_desc_16[4], NVKM_VMM_PAGE_Sxxx },
  73                { 38, &gp100_vmm_desc_16[3], NVKM_VMM_PAGE_Sxxx },
  74                { 29, &gp100_vmm_desc_16[2], NVKM_VMM_PAGE_Sxxx },
  75                { 21, &gp100_vmm_desc_16[1], NVKM_VMM_PAGE_SVxC },
  76                { 16, &gp100_vmm_desc_16[0], NVKM_VMM_PAGE_SVxC },
  77                { 12, &gp100_vmm_desc_12[0], NVKM_VMM_PAGE_SVHx },
  78                {}
  79        }
  80};
  81
  82int
  83gv100_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
  84              void *argv, u32 argc, struct lock_class_key *key,
  85              const char *name, struct nvkm_vmm **pvmm)
  86{
  87        return gp100_vmm_new_(&gv100_vmm, mmu, managed, addr, size,
  88                              argv, argc, key, name, pvmm);
  89}
  90