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
  30 int
  31 gv100_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
  62 static const struct nvkm_vmm_func
  63 gv100_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
  82 int
  83 gv100_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 }