drivers/gpu/drm/nouveau/nvc0_fbcon.c

   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_drm.h"
  26 #include "nouveau_dma.h"
  27 #include "nouveau_fbcon.h"
  28
  29 int
  30 nvc0_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
  64 int
  65 nvc0_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
  92 int
  93 nvc0_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 width, 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         width = ALIGN(image->width, 32);
 111         dwords = (width * image->height) >> 5;
 112
 113         BEGIN_NVC0(chan, NvSub2D, 0x0814, 2);
 114         if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
 115             info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
 116                 OUT_RING  (chan, palette[image->bg_color] | mask);
 117                 OUT_RING  (chan, palette[image->fg_color] | mask);
 118         } else {
 119                 OUT_RING  (chan, image->bg_color);
 120                 OUT_RING  (chan, image->fg_color);
 121         }
 122         BEGIN_NVC0(chan, NvSub2D, 0x0838, 2);
 123         OUT_RING  (chan, image->width);
 124         OUT_RING  (chan, image->height);
 125         BEGIN_NVC0(chan, NvSub2D, 0x0850, 4);
 126         OUT_RING  (chan, 0);
 127         OUT_RING  (chan, image->dx);
 128         OUT_RING  (chan, 0);
 129         OUT_RING  (chan, image->dy);
 130
 131         while (dwords) {
 132                 int push = dwords > 2047 ? 2047 : dwords;
 133
 134                 ret = RING_SPACE(chan, push + 1);
 135                 if (ret)
 136                         return ret;
 137
 138                 dwords -= push;
 139
 140                 BEGIN_NIC0(chan, NvSub2D, 0x0860, push);
 141                 OUT_RINGp(chan, data, push);
 142                 data += push;
 143         }
 144
 145         FIRE_RING(chan);
 146         return 0;
 147 }
 148
 149 int
 150 nvc0_fbcon_accel_init(struct fb_info *info)
 151 {
 152         struct nouveau_fbdev *nfbdev = info->par;
 153         struct drm_device *dev = nfbdev->dev;
 154         struct nouveau_framebuffer *fb = &nfbdev->nouveau_fb;
 155         struct nouveau_drm *drm = nouveau_drm(dev);
 156         struct nouveau_channel *chan = drm->channel;
 157         int ret, format;
 158
 159         ret = nvif_object_init(&chan->user, 0x902d, 0x902d, NULL, 0,
 160                                &nfbdev->twod);
 161         if (ret)
 162                 return ret;
 163
 164         switch (info->var.bits_per_pixel) {
 165         case 8:
 166                 format = 0xf3;
 167                 break;
 168         case 15:
 169                 format = 0xf8;
 170                 break;
 171         case 16:
 172                 format = 0xe8;
 173                 break;
 174         case 32:
 175                 switch (info->var.transp.length) {
 176                 case 0: /* depth 24 */
 177                 case 8: /* depth 32, just use 24.. */
 178                         format = 0xe6;
 179                         break;
 180                 case 2: /* depth 30 */
 181                         format = 0xd1;
 182                         break;
 183                 default:
 184                         return -EINVAL;
 185                 }
 186                 break;
 187         default:
 188                 return -EINVAL;
 189         }
 190
 191         ret = RING_SPACE(chan, 58);
 192         if (ret) {
 193                 WARN_ON(1);
 194                 nouveau_fbcon_gpu_lockup(info);
 195                 return ret;
 196         }
 197
 198         BEGIN_NVC0(chan, NvSub2D, 0x0000, 1);
 199         OUT_RING  (chan, nfbdev->twod.handle);
 200         BEGIN_NVC0(chan, NvSub2D, 0x0290, 1);
 201         OUT_RING  (chan, 0);
 202         BEGIN_NVC0(chan, NvSub2D, 0x0888, 1);
 203         OUT_RING  (chan, 1);
 204         BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
 205         OUT_RING  (chan, 3);
 206         BEGIN_NVC0(chan, NvSub2D, 0x02a0, 1);
 207         OUT_RING  (chan, 0x55);
 208         BEGIN_NVC0(chan, NvSub2D, 0x08c0, 4);
 209         OUT_RING  (chan, 0);
 210         OUT_RING  (chan, 1);
 211         OUT_RING  (chan, 0);
 212         OUT_RING  (chan, 1);
 213         BEGIN_NVC0(chan, NvSub2D, 0x0580, 2);
 214         OUT_RING  (chan, 4);
 215         OUT_RING  (chan, format);
 216         BEGIN_NVC0(chan, NvSub2D, 0x02e8, 2);
 217         OUT_RING  (chan, 2);
 218         OUT_RING  (chan, 1);
 219
 220         BEGIN_NVC0(chan, NvSub2D, 0x0804, 1);
 221         OUT_RING  (chan, format);
 222         BEGIN_NVC0(chan, NvSub2D, 0x0800, 1);
 223         OUT_RING  (chan, 1);
 224         BEGIN_NVC0(chan, NvSub2D, 0x0808, 3);
 225         OUT_RING  (chan, 0);
 226         OUT_RING  (chan, 0);
 227         OUT_RING  (chan, 1);
 228         BEGIN_NVC0(chan, NvSub2D, 0x081c, 1);
 229         OUT_RING  (chan, 1);
 230         BEGIN_NVC0(chan, NvSub2D, 0x0840, 4);
 231         OUT_RING  (chan, 0);
 232         OUT_RING  (chan, 1);
 233         OUT_RING  (chan, 0);
 234         OUT_RING  (chan, 1);
 235         BEGIN_NVC0(chan, NvSub2D, 0x0200, 10);
 236         OUT_RING  (chan, format);
 237         OUT_RING  (chan, 1);
 238         OUT_RING  (chan, 0);
 239         OUT_RING  (chan, 1);
 240         OUT_RING  (chan, 0);
 241         OUT_RING  (chan, info->fix.line_length);
 242         OUT_RING  (chan, info->var.xres_virtual);
 243         OUT_RING  (chan, info->var.yres_virtual);
 244         OUT_RING  (chan, upper_32_bits(fb->vma.offset));
 245         OUT_RING  (chan, lower_32_bits(fb->vma.offset));
 246         BEGIN_NVC0(chan, NvSub2D, 0x0230, 10);
 247         OUT_RING  (chan, format);
 248         OUT_RING  (chan, 1);
 249         OUT_RING  (chan, 0);
 250         OUT_RING  (chan, 1);
 251         OUT_RING  (chan, 0);
 252         OUT_RING  (chan, info->fix.line_length);
 253         OUT_RING  (chan, info->var.xres_virtual);
 254         OUT_RING  (chan, info->var.yres_virtual);
 255         OUT_RING  (chan, upper_32_bits(fb->vma.offset));
 256         OUT_RING  (chan, lower_32_bits(fb->vma.offset));
 257         FIRE_RING (chan);
 258
 259         return 0;
 260 }
 261