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 <subdev/bios.h>
  28 #include <subdev/bios/M0203.h>
  29 #include <engine/gr.h>
  30 #include <engine/mpeg.h>
  31
  32 bool
  33 nvkm_fb_memtype_valid(struct nvkm_fb *fb, u32 memtype)
  34 {
  35         return fb->func->memtype_valid(fb, memtype);
  36 }
  37
  38 void
  39 nvkm_fb_tile_fini(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
  40 {
  41         fb->func->tile.fini(fb, region, tile);
  42 }
  43
  44 void
  45 nvkm_fb_tile_init(struct nvkm_fb *fb, int region, u32 addr, u32 size,
  46                   u32 pitch, u32 flags, struct nvkm_fb_tile *tile)
  47 {
  48         fb->func->tile.init(fb, region, addr, size, pitch, flags, tile);
  49 }
  50
  51 void
  52 nvkm_fb_tile_prog(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
  53 {
  54         struct nvkm_device *device = fb->subdev.device;
  55         if (fb->func->tile.prog) {
  56                 fb->func->tile.prog(fb, region, tile);
  57                 if (device->gr)
  58                         nvkm_engine_tile(&device->gr->engine, region);
  59                 if (device->mpeg)
  60                         nvkm_engine_tile(device->mpeg, region);
  61         }
  62 }
  63
  64 int
  65 nvkm_fb_bios_memtype(struct nvkm_bios *bios)
  66 {
  67         struct nvkm_subdev *subdev = &bios->subdev;
  68         struct nvkm_device *device = subdev->device;
  69         const u8 ramcfg = (nvkm_rd32(device, 0x101000) & 0x0000003c) >> 2;
  70         struct nvbios_M0203E M0203E;
  71         u8 ver, hdr;
  72
  73         if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
  74                 switch (M0203E.type) {
  75                 case M0203E_TYPE_DDR2 : return NVKM_RAM_TYPE_DDR2;
  76                 case M0203E_TYPE_DDR3 : return NVKM_RAM_TYPE_DDR3;
  77                 case M0203E_TYPE_GDDR3: return NVKM_RAM_TYPE_GDDR3;
  78                 case M0203E_TYPE_GDDR5: return NVKM_RAM_TYPE_GDDR5;
  79                 default:
  80                         nvkm_warn(subdev, "M0203E type %02x\n", M0203E.type);
  81                         return NVKM_RAM_TYPE_UNKNOWN;
  82                 }
  83         }
  84
  85         nvkm_warn(subdev, "M0203E not matched!\n");
  86         return NVKM_RAM_TYPE_UNKNOWN;
  87 }
  88
  89 static void
  90 nvkm_fb_intr(struct nvkm_subdev *subdev)
  91 {
  92         struct nvkm_fb *fb = nvkm_fb(subdev);
  93         if (fb->func->intr)
  94                 fb->func->intr(fb);
  95 }
  96
  97 static int
  98 nvkm_fb_oneinit(struct nvkm_subdev *subdev)
  99 {
 100         struct nvkm_fb *fb = nvkm_fb(subdev);
 101         if (fb->func->ram_new) {
 102                 int ret = fb->func->ram_new(fb, &fb->ram);
 103                 if (ret) {
 104                         nvkm_error(subdev, "vram setup failed, %d\n", ret);
 105                         return ret;
 106                 }
 107         }
 108         return 0;
 109 }
 110
 111 static int
 112 nvkm_fb_init(struct nvkm_subdev *subdev)
 113 {
 114         struct nvkm_fb *fb = nvkm_fb(subdev);
 115         int ret, i;
 116
 117         if (fb->ram) {
 118                 ret = nvkm_ram_init(fb->ram);
 119                 if (ret)
 120                         return ret;
 121         }
 122
 123         for (i = 0; i < fb->tile.regions; i++)
 124                 fb->func->tile.prog(fb, i, &fb->tile.region[i]);
 125
 126         if (fb->func->init)
 127                 fb->func->init(fb);
 128         return 0;
 129 }
 130
 131 static void *
 132 nvkm_fb_dtor(struct nvkm_subdev *subdev)
 133 {
 134         struct nvkm_fb *fb = nvkm_fb(subdev);
 135         int i;
 136
 137         for (i = 0; i < fb->tile.regions; i++)
 138                 fb->func->tile.fini(fb, i, &fb->tile.region[i]);
 139
 140         nvkm_ram_del(&fb->ram);
 141
 142         if (fb->func->dtor)
 143                 return fb->func->dtor(fb);
 144         return fb;
 145 }
 146
 147 static const struct nvkm_subdev_func
 148 nvkm_fb = {
 149         .dtor = nvkm_fb_dtor,
 150         .oneinit = nvkm_fb_oneinit,
 151         .init = nvkm_fb_init,
 152         .intr = nvkm_fb_intr,
 153 };
 154
 155 void
 156 nvkm_fb_ctor(const struct nvkm_fb_func *func, struct nvkm_device *device,
 157              int index, struct nvkm_fb *fb)
 158 {
 159         nvkm_subdev_ctor(&nvkm_fb, device, index, 0, &fb->subdev);
 160         fb->func = func;
 161         fb->tile.regions = fb->func->tile.regions;
 162 }
 163
 164 int
 165 nvkm_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device,
 166              int index, struct nvkm_fb **pfb)
 167 {
 168         if (!(*pfb = kzalloc(sizeof(**pfb), GFP_KERNEL)))
 169                 return -ENOMEM;
 170         nvkm_fb_ctor(func, device, index, *pfb);
 171         return 0;
 172 }