linux/drivers/gpu/drm/nouveau/nvc0_fbcon.c
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   1/*
   2 * Copyright 2010 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
  25#include "nouveau_drv.h"
  26#include "nouveau_dma.h"
  27#include "nouveau_fbcon.h"
  28
  29int
  30nvc0_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
  31{
  32        struct nouveau_fbdev *nfbdev = info->par;
  33        struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
  34        struct nouveau_channel *chan = drm->channel;
  35        int ret;
  36
  37        ret = RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11);
  38        if (ret)
  39                return ret;
  40
  41        if (rect->rop != ROP_COPY) {
  42                BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
  43                OUT_RING  (chan, 1);
  44        }
  45        BEGIN_NVC0(chan, NvSub2D, 0x0588, 1);
  46        if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
  47            info->fix.visual == FB_VISUAL_DIRECTCOLOR)
  48                OUT_RING  (chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
  49        else
  50                OUT_RING  (chan, rect->color);
  51        BEGIN_NVC0(chan, NvSub2D, 0x0600, 4);
  52        OUT_RING  (chan, rect->dx);
  53        OUT_RING  (chan, rect->dy);
  54        OUT_RING  (chan, rect->dx + rect->width);
  55        OUT_RING  (chan, rect->dy + rect->height);
  56        if (rect->rop != ROP_COPY) {
  57                BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
  58                OUT_RING  (chan, 3);
  59        }
  60        FIRE_RING(chan);
  61        return 0;
  62}
  63
  64int
  65nvc0_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
  66{
  67        struct nouveau_fbdev *nfbdev = info->par;
  68        struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
  69        struct nouveau_channel *chan = drm->channel;
  70        int ret;
  71
  72        ret = RING_SPACE(chan, 12);
  73        if (ret)
  74                return ret;
  75
  76        BEGIN_NVC0(chan, NvSub2D, 0x0110, 1);
  77        OUT_RING  (chan, 0);
  78        BEGIN_NVC0(chan, NvSub2D, 0x08b0, 4);
  79        OUT_RING  (chan, region->dx);
  80        OUT_RING  (chan, region->dy);
  81        OUT_RING  (chan, region->width);
  82        OUT_RING  (chan, region->height);
  83        BEGIN_NVC0(chan, NvSub2D, 0x08d0, 4);
  84        OUT_RING  (chan, 0);
  85        OUT_RING  (chan, region->sx);
  86        OUT_RING  (chan, 0);
  87        OUT_RING  (chan, region->sy);
  88        FIRE_RING(chan);
  89        return 0;
  90}
  91
  92int
  93nvc0_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
  94{
  95        struct nouveau_fbdev *nfbdev = info->par;
  96        struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
  97        struct nouveau_channel *chan = drm->channel;
  98        uint32_t dwords, *data = (uint32_t *)image->data;
  99        uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
 100        uint32_t *palette = info->pseudo_palette;
 101        int ret;
 102
 103        if (image->depth != 1)
 104                return -ENODEV;
 105
 106        ret = RING_SPACE(chan, 11);
 107        if (ret)
 108                return ret;
 109
 110        BEGIN_NVC0(chan, NvSub2D, 0x0814, 2);
 111        if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
 112            info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
 113                OUT_RING  (chan, palette[image->bg_color] | mask);
 114                OUT_RING  (chan, palette[image->fg_color] | mask);
 115        } else {
 116                OUT_RING  (chan, image->bg_color);
 117                OUT_RING  (chan, image->fg_color);
 118        }
 119        BEGIN_NVC0(chan, NvSub2D, 0x0838, 2);
 120        OUT_RING  (chan, image->width);
 121        OUT_RING  (chan, image->height);
 122        BEGIN_NVC0(chan, NvSub2D, 0x0850, 4);
 123        OUT_RING  (chan, 0);
 124        OUT_RING  (chan, image->dx);
 125        OUT_RING  (chan, 0);
 126        OUT_RING  (chan, image->dy);
 127
 128        dwords = ALIGN(image->width * image->height, 32) >> 5;
 129        while (dwords) {
 130                int push = dwords > 2047 ? 2047 : dwords;
 131
 132                ret = RING_SPACE(chan, push + 1);
 133                if (ret)
 134                        return ret;
 135
 136                dwords -= push;
 137
 138                BEGIN_NIC0(chan, NvSub2D, 0x0860, push);
 139                OUT_RINGp(chan, data, push);
 140                data += push;
 141        }
 142
 143        FIRE_RING(chan);
 144        return 0;
 145}
 146
 147int
 148nvc0_fbcon_accel_init(struct fb_info *info)
 149{
 150        struct nouveau_fbdev *nfbdev = info->par;
 151        struct drm_device *dev = nfbdev->dev;
 152        struct nouveau_framebuffer *fb = &nfbdev->nouveau_fb;
 153        struct nouveau_drm *drm = nouveau_drm(dev);
 154        struct nouveau_channel *chan = drm->channel;
 155        int ret, format;
 156
 157        ret = nvif_object_init(&chan->user, 0x902d, 0x902d, NULL, 0,
 158                               &nfbdev->twod);
 159        if (ret)
 160                return ret;
 161
 162        switch (info->var.bits_per_pixel) {
 163        case 8:
 164                format = 0xf3;
 165                break;
 166        case 15:
 167                format = 0xf8;
 168                break;
 169        case 16:
 170                format = 0xe8;
 171                break;
 172        case 32:
 173                switch (info->var.transp.length) {
 174                case 0: /* depth 24 */
 175                case 8: /* depth 32, just use 24.. */
 176                        format = 0xe6;
 177                        break;
 178                case 2: /* depth 30 */
 179                        format = 0xd1;
 180                        break;
 181                default:
 182                        return -EINVAL;
 183                }
 184                break;
 185        default:
 186                return -EINVAL;
 187        }
 188
 189        ret = RING_SPACE(chan, 58);
 190        if (ret) {
 191                WARN_ON(1);
 192                nouveau_fbcon_gpu_lockup(info);
 193                return ret;
 194        }
 195
 196        BEGIN_NVC0(chan, NvSub2D, 0x0000, 1);
 197        OUT_RING  (chan, nfbdev->twod.handle);
 198        BEGIN_NVC0(chan, NvSub2D, 0x0290, 1);
 199        OUT_RING  (chan, 0);
 200        BEGIN_NVC0(chan, NvSub2D, 0x0888, 1);
 201        OUT_RING  (chan, 1);
 202        BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
 203        OUT_RING  (chan, 3);
 204        BEGIN_NVC0(chan, NvSub2D, 0x02a0, 1);
 205        OUT_RING  (chan, 0x55);
 206        BEGIN_NVC0(chan, NvSub2D, 0x08c0, 4);
 207        OUT_RING  (chan, 0);
 208        OUT_RING  (chan, 1);
 209        OUT_RING  (chan, 0);
 210        OUT_RING  (chan, 1);
 211        BEGIN_NVC0(chan, NvSub2D, 0x0580, 2);
 212        OUT_RING  (chan, 4);
 213        OUT_RING  (chan, format);
 214        BEGIN_NVC0(chan, NvSub2D, 0x02e8, 2);
 215        OUT_RING  (chan, 2);
 216        OUT_RING  (chan, 1);
 217
 218        BEGIN_NVC0(chan, NvSub2D, 0x0804, 1);
 219        OUT_RING  (chan, format);
 220        BEGIN_NVC0(chan, NvSub2D, 0x0800, 1);
 221        OUT_RING  (chan, 1);
 222        BEGIN_NVC0(chan, NvSub2D, 0x0808, 3);
 223        OUT_RING  (chan, 0);
 224        OUT_RING  (chan, 0);
 225        OUT_RING  (chan, 1);
 226        BEGIN_NVC0(chan, NvSub2D, 0x081c, 1);
 227        OUT_RING  (chan, 1);
 228        BEGIN_NVC0(chan, NvSub2D, 0x0840, 4);
 229        OUT_RING  (chan, 0);
 230        OUT_RING  (chan, 1);
 231        OUT_RING  (chan, 0);
 232        OUT_RING  (chan, 1);
 233        BEGIN_NVC0(chan, NvSub2D, 0x0200, 10);
 234        OUT_RING  (chan, format);
 235        OUT_RING  (chan, 1);
 236        OUT_RING  (chan, 0);
 237        OUT_RING  (chan, 1);
 238        OUT_RING  (chan, 0);
 239        OUT_RING  (chan, info->fix.line_length);
 240        OUT_RING  (chan, info->var.xres_virtual);
 241        OUT_RING  (chan, info->var.yres_virtual);
 242        OUT_RING  (chan, upper_32_bits(fb->vma.offset));
 243        OUT_RING  (chan, lower_32_bits(fb->vma.offset));
 244        BEGIN_NVC0(chan, NvSub2D, 0x0230, 10);
 245        OUT_RING  (chan, format);
 246        OUT_RING  (chan, 1);
 247        OUT_RING  (chan, 0);
 248        OUT_RING  (chan, 1);
 249        OUT_RING  (chan, 0);
 250        OUT_RING  (chan, info->fix.line_length);
 251        OUT_RING  (chan, info->var.xres_virtual);
 252        OUT_RING  (chan, info->var.yres_virtual);
 253        OUT_RING  (chan, upper_32_bits(fb->vma.offset));
 254        OUT_RING  (chan, lower_32_bits(fb->vma.offset));
 255        FIRE_RING (chan);
 256
 257        return 0;
 258}
 259
 260
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