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 #include "ram.h"
  26
  27 #include <core/memory.h>
  28 #include <core/option.h>
  29 #include <subdev/bios.h>
  30 #include <subdev/bios/M0203.h>
  31 #include <engine/gr.h>
  32 #include <engine/mpeg.h>
  33
  34 bool
  35 nvkm_fb_memtype_valid(struct nvkm_fb *fb, u32 memtype)
  36 {
  37         return fb->func->memtype_valid(fb, memtype);
  38 }
  39
  40 void
  41 nvkm_fb_tile_fini(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
  42 {
  43         fb->func->tile.fini(fb, region, tile);
  44 }
  45
  46 void
  47 nvkm_fb_tile_init(struct nvkm_fb *fb, int region, u32 addr, u32 size,
  48                   u32 pitch, u32 flags, struct nvkm_fb_tile *tile)
  49 {
  50         fb->func->tile.init(fb, region, addr, size, pitch, flags, tile);
  51 }
  52
  53 void
  54 nvkm_fb_tile_prog(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
  55 {
  56         struct nvkm_device *device = fb->subdev.device;
  57         if (fb->func->tile.prog) {
  58                 fb->func->tile.prog(fb, region, tile);
  59                 if (device->gr)
  60                         nvkm_engine_tile(&device->gr->engine, region);
  61                 if (device->mpeg)
  62                         nvkm_engine_tile(device->mpeg, region);
  63         }
  64 }
  65
  66 int
  67 nvkm_fb_bios_memtype(struct nvkm_bios *bios)
  68 {
  69         struct nvkm_subdev *subdev = &bios->subdev;
  70         struct nvkm_device *device = subdev->device;
  71         const u8 ramcfg = (nvkm_rd32(device, 0x101000) & 0x0000003c) >> 2;
  72         struct nvbios_M0203E M0203E;
  73         u8 ver, hdr;
  74
  75         if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
  76                 switch (M0203E.type) {
  77                 case M0203E_TYPE_DDR2 : return NVKM_RAM_TYPE_DDR2;
  78                 case M0203E_TYPE_DDR3 : return NVKM_RAM_TYPE_DDR3;
  79                 case M0203E_TYPE_GDDR3: return NVKM_RAM_TYPE_GDDR3;
  80                 case M0203E_TYPE_GDDR5: return NVKM_RAM_TYPE_GDDR5;
  81                 default:
  82                         nvkm_warn(subdev, "M0203E type %02x\n", M0203E.type);
  83                         return NVKM_RAM_TYPE_UNKNOWN;
  84                 }
  85         }
  86
  87         nvkm_warn(subdev, "M0203E not matched!\n");
  88         return NVKM_RAM_TYPE_UNKNOWN;
  89 }
  90
  91 static void
  92 nvkm_fb_intr(struct nvkm_subdev *subdev)
  93 {
  94         struct nvkm_fb *fb = nvkm_fb(subdev);
  95         if (fb->func->intr)
  96                 fb->func->intr(fb);
  97 }
  98
  99 static int
 100 nvkm_fb_oneinit(struct nvkm_subdev *subdev)
 101 {
 102         struct nvkm_fb *fb = nvkm_fb(subdev);
 103         u32 tags = 0;
 104
 105         if (fb->func->ram_new) {
 106                 int ret = fb->func->ram_new(fb, &fb->ram);
 107                 if (ret) {
 108                         nvkm_error(subdev, "vram setup failed, %d\n", ret);
 109                         return ret;
 110                 }
 111         }
 112
 113         if (fb->func->oneinit) {
 114                 int ret = fb->func->oneinit(fb);
 115                 if (ret)
 116                         return ret;
 117         }
 118
 119         /* Initialise compression tag allocator.
 120          *
 121          * LTC oneinit() will override this on Fermi and newer.
 122          */
 123         if (fb->func->tags) {
 124                 tags = fb->func->tags(fb);
 125                 nvkm_debug(subdev, "%d comptags\n", tags);
 126         }
 127
 128         return nvkm_mm_init(&fb->tags, 0, 0, tags, 1);
 129 }
 130
 131 static int
 132 nvkm_fb_init(struct nvkm_subdev *subdev)
 133 {
 134         struct nvkm_fb *fb = nvkm_fb(subdev);
 135         int ret, i;
 136
 137         if (fb->ram) {
 138                 ret = nvkm_ram_init(fb->ram);
 139                 if (ret)
 140                         return ret;
 141         }
 142
 143         for (i = 0; i < fb->tile.regions; i++)
 144                 fb->func->tile.prog(fb, i, &fb->tile.region[i]);
 145
 146         if (fb->func->init)
 147                 fb->func->init(fb);
 148
 149         if (fb->func->init_page) {
 150                 ret = fb->func->init_page(fb);
 151                 if (WARN_ON(ret))
 152                         return ret;
 153         }
 154
 155         if (fb->func->init_unkn)
 156                 fb->func->init_unkn(fb);
 157         return 0;
 158 }
 159
 160 static void *
 161 nvkm_fb_dtor(struct nvkm_subdev *subdev)
 162 {
 163         struct nvkm_fb *fb = nvkm_fb(subdev);
 164         int i;
 165
 166         nvkm_memory_unref(&fb->mmu_wr);
 167         nvkm_memory_unref(&fb->mmu_rd);
 168
 169         for (i = 0; i < fb->tile.regions; i++)
 170                 fb->func->tile.fini(fb, i, &fb->tile.region[i]);
 171
 172         nvkm_mm_fini(&fb->tags);
 173         nvkm_ram_del(&fb->ram);
 174
 175         if (fb->func->dtor)
 176                 return fb->func->dtor(fb);
 177         return fb;
 178 }
 179
 180 static const struct nvkm_subdev_func
 181 nvkm_fb = {
 182         .dtor = nvkm_fb_dtor,
 183         .oneinit = nvkm_fb_oneinit,
 184         .init = nvkm_fb_init,
 185         .intr = nvkm_fb_intr,
 186 };
 187
 188 void
 189 nvkm_fb_ctor(const struct nvkm_fb_func *func, struct nvkm_device *device,
 190              int index, struct nvkm_fb *fb)
 191 {
 192         nvkm_subdev_ctor(&nvkm_fb, device, index, &fb->subdev);
 193         fb->func = func;
 194         fb->tile.regions = fb->func->tile.regions;
 195         fb->page = nvkm_longopt(device->cfgopt, "NvFbBigPage",
 196                                 fb->func->default_bigpage);
 197 }
 198
 199 int
 200 nvkm_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device,
 201              int index, struct nvkm_fb **pfb)
 202 {
 203         if (!(*pfb = kzalloc(sizeof(**pfb), GFP_KERNEL)))
 204                 return -ENOMEM;
 205         nvkm_fb_ctor(func, device, index, *pfb);
 206         return 0;
 207 }