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