LXR linux/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
  34void
  35nvkm_fb_tile_fini(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
  36{
  37        fb->func->tile.fini(fb, region, tile);
  38}
  39
  40void
  41nvkm_fb_tile_init(struct nvkm_fb *fb, int region, u32 addr, u32 size,
  42                  u32 pitch, u32 flags, struct nvkm_fb_tile *tile)
  43{
  44        fb->func->tile.init(fb, region, addr, size, pitch, flags, tile);
  45}
  46
  47void
  48nvkm_fb_tile_prog(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
  49{
  50        struct nvkm_device *device = fb->subdev.device;
  51        if (fb->func->tile.prog) {
  52                fb->func->tile.prog(fb, region, tile);
  53                if (device->gr)
  54                        nvkm_engine_tile(&device->gr->engine, region);
  55                if (device->mpeg)
  56                        nvkm_engine_tile(device->mpeg, region);
  57        }
  58}
  59
  60int
  61nvkm_fb_bios_memtype(struct nvkm_bios *bios)
  62{
  63        struct nvkm_subdev *subdev = &bios->subdev;
  64        struct nvkm_device *device = subdev->device;
  65        const u8 ramcfg = (nvkm_rd32(device, 0x101000) & 0x0000003c) >> 2;
  66        struct nvbios_M0203E M0203E;
  67        u8 ver, hdr;
  68
  69        if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
  70                switch (M0203E.type) {
  71                case M0203E_TYPE_DDR2  : return NVKM_RAM_TYPE_DDR2;
  72                case M0203E_TYPE_DDR3  : return NVKM_RAM_TYPE_DDR3;
  73                case M0203E_TYPE_GDDR3 : return NVKM_RAM_TYPE_GDDR3;
  74                case M0203E_TYPE_GDDR5 : return NVKM_RAM_TYPE_GDDR5;
  75                case M0203E_TYPE_GDDR5X: return NVKM_RAM_TYPE_GDDR5X;
  76                case M0203E_TYPE_GDDR6 : return NVKM_RAM_TYPE_GDDR6;
  77                case M0203E_TYPE_HBM2  : return NVKM_RAM_TYPE_HBM2;
  78                default:
  79                        nvkm_warn(subdev, "M0203E type %02x\n", M0203E.type);
  80                        return NVKM_RAM_TYPE_UNKNOWN;
  81                }
  82        }
  83
  84        nvkm_warn(subdev, "M0203E not matched!\n");
  85        return NVKM_RAM_TYPE_UNKNOWN;
  86}
  87
  88static void
  89nvkm_fb_intr(struct nvkm_subdev *subdev)
  90{
  91        struct nvkm_fb *fb = nvkm_fb(subdev);
  92        if (fb->func->intr)
  93                fb->func->intr(fb);
  94}
  95
  96static int
  97nvkm_fb_oneinit(struct nvkm_subdev *subdev)
  98{
  99        struct nvkm_fb *fb = nvkm_fb(subdev);
 100        u32 tags = 0;
 101
 102        if (fb->func->ram_new) {
 103                int ret = fb->func->ram_new(fb, &fb->ram);
 104                if (ret) {
 105                        nvkm_error(subdev, "vram setup failed, %d\n", ret);
 106                        return ret;
 107                }
 108        }
 109
 110        if (fb->func->oneinit) {
 111                int ret = fb->func->oneinit(fb);
 112                if (ret)
 113                        return ret;
 114        }
 115
 116        /* Initialise compression tag allocator.
 117         *
 118         * LTC oneinit() will override this on Fermi and newer.
 119         */
 120        if (fb->func->tags) {
 121                tags = fb->func->tags(fb);
 122                nvkm_debug(subdev, "%d comptags\n", tags);
 123        }
 124
 125        return nvkm_mm_init(&fb->tags, 0, 0, tags, 1);
 126}
 127
 128static int
 129nvkm_fb_init(struct nvkm_subdev *subdev)
 130{
 131        struct nvkm_fb *fb = nvkm_fb(subdev);
 132        int ret, i;
 133
 134        if (fb->ram) {
 135                ret = nvkm_ram_init(fb->ram);
 136                if (ret)
 137                        return ret;
 138        }
 139
 140        for (i = 0; i < fb->tile.regions; i++)
 141                fb->func->tile.prog(fb, i, &fb->tile.region[i]);
 142
 143        if (fb->func->init)
 144                fb->func->init(fb);
 145
 146        if (fb->func->init_remapper)
 147                fb->func->init_remapper(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
 160static void *
 161nvkm_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
 180static const struct nvkm_subdev_func
 181nvkm_fb = {
 182        .dtor = nvkm_fb_dtor,
 183        .oneinit = nvkm_fb_oneinit,
 184        .init = nvkm_fb_init,
 185        .intr = nvkm_fb_intr,
 186};
 187
 188void
 189nvkm_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
 199int
 200nvkm_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}
 208