drivers/gpu/drm/nouveau/nvkm/subdev/fb/base.c

   1 /*
   2  * Copyright 2012 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  * Authors: Ben Skeggs
  23  */
  24 #include "priv.h"
  25
  26 #include <subdev/bios.h>
  27 #include <subdev/bios/M0203.h>
  28
  29 int
  30 nvkm_fb_bios_memtype(struct nvkm_bios *bios)
  31 {
  32         const u8 ramcfg = (nv_rd32(bios, 0x101000) & 0x0000003c) >> 2;
  33         struct nvbios_M0203E M0203E;
  34         u8 ver, hdr;
  35
  36         if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
  37                 switch (M0203E.type) {
  38                 case M0203E_TYPE_DDR2 : return NV_MEM_TYPE_DDR2;
  39                 case M0203E_TYPE_DDR3 : return NV_MEM_TYPE_DDR3;
  40                 case M0203E_TYPE_GDDR3: return NV_MEM_TYPE_GDDR3;
  41                 case M0203E_TYPE_GDDR5: return NV_MEM_TYPE_GDDR5;
  42                 default:
  43                         nv_warn(bios, "M0203E type %02x\n", M0203E.type);
  44                         return NV_MEM_TYPE_UNKNOWN;
  45                 }
  46         }
  47
  48         nv_warn(bios, "M0203E not matched!\n");
  49         return NV_MEM_TYPE_UNKNOWN;
  50 }
  51
  52 int
  53 _nvkm_fb_fini(struct nvkm_object *object, bool suspend)
  54 {
  55         struct nvkm_fb *pfb = (void *)object;
  56         int ret;
  57
  58         if (pfb->ram) {
  59                 ret = nv_ofuncs(pfb->ram)->fini(nv_object(pfb->ram), suspend);
  60                 if (ret && suspend)
  61                         return ret;
  62         }
  63
  64         return nvkm_subdev_fini(&pfb->base, suspend);
  65 }
  66
  67 int
  68 _nvkm_fb_init(struct nvkm_object *object)
  69 {
  70         struct nvkm_fb *pfb = (void *)object;
  71         int ret, i;
  72
  73         ret = nvkm_subdev_init(&pfb->base);
  74         if (ret)
  75                 return ret;
  76
  77         if (pfb->ram) {
  78                 ret = nv_ofuncs(pfb->ram)->init(nv_object(pfb->ram));
  79                 if (ret)
  80                         return ret;
  81         }
  82
  83         for (i = 0; i < pfb->tile.regions; i++)
  84                 pfb->tile.prog(pfb, i, &pfb->tile.region[i]);
  85
  86         return 0;
  87 }
  88
  89 void
  90 _nvkm_fb_dtor(struct nvkm_object *object)
  91 {
  92         struct nvkm_fb *pfb = (void *)object;
  93         int i;
  94
  95         for (i = 0; i < pfb->tile.regions; i++)
  96                 pfb->tile.fini(pfb, i, &pfb->tile.region[i]);
  97         nvkm_mm_fini(&pfb->tags);
  98
  99         if (pfb->ram) {
 100                 nvkm_mm_fini(&pfb->vram);
 101                 nvkm_object_ref(NULL, (struct nvkm_object **)&pfb->ram);
 102         }
 103
 104         nvkm_subdev_destroy(&pfb->base);
 105 }
 106
 107 int
 108 nvkm_fb_create_(struct nvkm_object *parent, struct nvkm_object *engine,
 109                 struct nvkm_oclass *oclass, int length, void **pobject)
 110 {
 111         struct nvkm_fb_impl *impl = (void *)oclass;
 112         static const char *name[] = {
 113                 [NV_MEM_TYPE_UNKNOWN] = "unknown",
 114                 [NV_MEM_TYPE_STOLEN ] = "stolen system memory",
 115                 [NV_MEM_TYPE_SGRAM  ] = "SGRAM",
 116                 [NV_MEM_TYPE_SDRAM  ] = "SDRAM",
 117                 [NV_MEM_TYPE_DDR1   ] = "DDR1",
 118                 [NV_MEM_TYPE_DDR2   ] = "DDR2",
 119                 [NV_MEM_TYPE_DDR3   ] = "DDR3",
 120                 [NV_MEM_TYPE_GDDR2  ] = "GDDR2",
 121                 [NV_MEM_TYPE_GDDR3  ] = "GDDR3",
 122                 [NV_MEM_TYPE_GDDR4  ] = "GDDR4",
 123                 [NV_MEM_TYPE_GDDR5  ] = "GDDR5",
 124         };
 125         struct nvkm_object *ram;
 126         struct nvkm_fb *pfb;
 127         int ret;
 128
 129         ret = nvkm_subdev_create_(parent, engine, oclass, 0, "PFB", "fb",
 130                                   length, pobject);
 131         pfb = *pobject;
 132         if (ret)
 133                 return ret;
 134
 135         pfb->memtype_valid = impl->memtype;
 136
 137         if (!impl->ram)
 138                 return 0;
 139
 140         ret = nvkm_object_ctor(nv_object(pfb), NULL, impl->ram, NULL, 0, &ram);
 141         if (ret) {
 142                 nv_fatal(pfb, "error detecting memory configuration!!\n");
 143                 return ret;
 144         }
 145
 146         pfb->ram = (void *)ram;
 147
 148         if (!nvkm_mm_initialised(&pfb->vram)) {
 149                 ret = nvkm_mm_init(&pfb->vram, 0, pfb->ram->size >> 12, 1);
 150                 if (ret)
 151                         return ret;
 152         }
 153
 154         if (!nvkm_mm_initialised(&pfb->tags)) {
 155                 ret = nvkm_mm_init(&pfb->tags, 0, pfb->ram->tags ?
 156                                    ++pfb->ram->tags : 0, 1);
 157                 if (ret)
 158                         return ret;
 159         }
 160
 161         nv_info(pfb, "RAM type: %s\n", name[pfb->ram->type]);
 162         nv_info(pfb, "RAM size: %d MiB\n", (int)(pfb->ram->size >> 20));
 163         nv_info(pfb, "   ZCOMP: %d tags\n", pfb->ram->tags);
 164         return 0;
 165 }