drivers/video/matrox/matroxfb_accel.c

   1 /*
   2  *
   3  * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
   4  *
   5  * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
   6  *
   7  * Version: 1.65 2002/08/14
   8  *
   9  * MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
  10  *
  11  * Contributors: "menion?" <menion@mindless.com>
  12  *                     Betatesting, fixes, ideas
  13  *
  14  *               "Kurt Garloff" <garloff@suse.de>
  15  *                     Betatesting, fixes, ideas, videomodes, videomodes timmings
  16  *
  17  *               "Tom Rini" <trini@kernel.crashing.org>
  18  *                     MTRR stuff, PPC cleanups, betatesting, fixes, ideas
  19  *
  20  *               "Bibek Sahu" <scorpio@dodds.net>
  21  *                     Access device through readb|w|l and write b|w|l
  22  *                     Extensive debugging stuff
  23  *
  24  *               "Daniel Haun" <haund@usa.net>
  25  *                     Testing, hardware cursor fixes
  26  *
  27  *               "Scott Wood" <sawst46+@pitt.edu>
  28  *                     Fixes
  29  *
  30  *               "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
  31  *                     Betatesting
  32  *
  33  *               "Kelly French" <targon@hazmat.com>
  34  *               "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
  35  *                     Betatesting, bug reporting
  36  *
  37  *               "Pablo Bianucci" <pbian@pccp.com.ar>
  38  *                     Fixes, ideas, betatesting
  39  *
  40  *               "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
  41  *                     Fixes, enhandcements, ideas, betatesting
  42  *
  43  *               "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
  44  *                     PPC betatesting, PPC support, backward compatibility
  45  *
  46  *               "Paul Womar" <Paul@pwomar.demon.co.uk>
  47  *               "Owen Waller" <O.Waller@ee.qub.ac.uk>
  48  *                     PPC betatesting
  49  *
  50  *               "Thomas Pornin" <pornin@bolet.ens.fr>
  51  *                     Alpha betatesting
  52  *
  53  *               "Pieter van Leuven" <pvl@iae.nl>
  54  *               "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
  55  *                     G100 testing
  56  *
  57  *               "H. Peter Arvin" <hpa@transmeta.com>
  58  *                     Ideas
  59  *
  60  *               "Cort Dougan" <cort@cs.nmt.edu>
  61  *                     CHRP fixes and PReP cleanup
  62  *
  63  *               "Mark Vojkovich" <mvojkovi@ucsd.edu>
  64  *                     G400 support
  65  *
  66  * (following author is not in any relation with this code, but his code
  67  *  is included in this driver)
  68  *
  69  * Based on framebuffer driver for VBE 2.0 compliant graphic boards
  70  *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
  71  *
  72  * (following author is not in any relation with this code, but his ideas
  73  *  were used when writing this driver)
  74  *
  75  *               FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
  76  *
  77  */
  78
  79 #include "matroxfb_accel.h"
  80 #include "matroxfb_DAC1064.h"
  81 #include "matroxfb_Ti3026.h"
  82 #include "matroxfb_misc.h"
  83
  84 #define curr_ydstorg(x) ACCESS_FBINFO2(x, curr.ydstorg.pixels)
  85
  86 #define mga_ydstlen(y,l) mga_outl(M_YDSTLEN | M_EXEC, ((y) << 16) | (l))
  87
  88 static inline void matrox_cfb4_pal(u_int32_t* pal) {
  89         unsigned int i;
  90
  91         for (i = 0; i < 16; i++) {
  92                 pal[i] = i * 0x11111111U;
  93         }
  94         pal[i] = 0xFFFFFFFF;
  95 }
  96
  97 static inline void matrox_cfb8_pal(u_int32_t* pal) {
  98         unsigned int i;
  99
 100         for (i = 0; i < 16; i++) {
 101                 pal[i] = i * 0x01010101U;
 102         }
 103         pal[i] = 0x0F0F0F0F;
 104 }
 105
 106 static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area);
 107 static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
 108 static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image);
 109 static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
 110 static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area);
 111
 112 void matrox_cfbX_init(WPMINFO2) {
 113         u_int32_t maccess;
 114         u_int32_t mpitch;
 115         u_int32_t mopmode;
 116         int accel;
 117
 118         DBG(__FUNCTION__)
 119
 120         mpitch = ACCESS_FBINFO(fbcon).var.xres_virtual;
 121
 122         ACCESS_FBINFO(fbops).fb_copyarea = cfb_copyarea;
 123         ACCESS_FBINFO(fbops).fb_fillrect = cfb_fillrect;
 124         ACCESS_FBINFO(fbops).fb_imageblit = cfb_imageblit;
 125         ACCESS_FBINFO(fbops).fb_cursor = NULL;
 126
 127         accel = (ACCESS_FBINFO(fbcon).var.accel_flags & FB_ACCELF_TEXT) == FB_ACCELF_TEXT;
 128
 129         switch (ACCESS_FBINFO(fbcon).var.bits_per_pixel) {
 130                 case 4:         maccess = 0x00000000;   /* accelerate as 8bpp video */
 131                                 mpitch = (mpitch >> 1) | 0x8000; /* disable linearization */
 132                                 mopmode = M_OPMODE_4BPP;
 133                                 matrox_cfb4_pal(ACCESS_FBINFO(cmap));
 134                                 if (accel && !(mpitch & 1)) {
 135                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_cfb4_copyarea;
 136                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_cfb4_fillrect;
 137                                 }
 138                                 break;
 139                 case 8:         maccess = 0x00000000;
 140                                 mopmode = M_OPMODE_8BPP;
 141                                 matrox_cfb8_pal(ACCESS_FBINFO(cmap));
 142                                 if (accel) {
 143                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
 144                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
 145                                         ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
 146                                 }
 147                                 break;
 148                 case 16:        if (ACCESS_FBINFO(fbcon).var.green.length == 5)
 149                                         maccess = 0xC0000001;
 150                                 else
 151                                         maccess = 0x40000001;
 152                                 mopmode = M_OPMODE_16BPP;
 153                                 if (accel) {
 154                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
 155                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
 156                                         ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
 157                                 }
 158                                 break;
 159                 case 24:        maccess = 0x00000003;
 160                                 mopmode = M_OPMODE_24BPP;
 161                                 if (accel) {
 162                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
 163                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
 164                                         ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
 165                                 }
 166                                 break;
 167                 case 32:        maccess = 0x00000002;
 168                                 mopmode = M_OPMODE_32BPP;
 169                                 if (accel) {
 170                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
 171                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
 172                                         ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
 173                                 }
 174                                 break;
 175                 default:        maccess = 0x00000000;
 176                                 mopmode = 0x00000000;
 177                                 break;  /* turn off acceleration!!! */
 178         }
 179         mga_fifo(8);
 180         mga_outl(M_PITCH, mpitch);
 181         mga_outl(M_YDSTORG, curr_ydstorg(MINFO));
 182         if (ACCESS_FBINFO(capable.plnwt))
 183                 mga_outl(M_PLNWT, -1);
 184         if (ACCESS_FBINFO(capable.srcorg)) {
 185                 mga_outl(M_SRCORG, 0);
 186                 mga_outl(M_DSTORG, 0);
 187         }
 188         mga_outl(M_OPMODE, mopmode);
 189         mga_outl(M_CXBNDRY, 0xFFFF0000);
 190         mga_outl(M_YTOP, 0);
 191         mga_outl(M_YBOT, 0x01FFFFFF);
 192         mga_outl(M_MACCESS, maccess);
 193         ACCESS_FBINFO(accel.m_dwg_rect) = M_DWG_TRAP | M_DWG_SOLID | M_DWG_ARZERO | M_DWG_SGNZERO | M_DWG_SHIFTZERO;
 194         if (isMilleniumII(MINFO)) ACCESS_FBINFO(accel.m_dwg_rect) |= M_DWG_TRANSC;
 195         ACCESS_FBINFO(accel.m_opmode) = mopmode;
 196 }
 197
 198 EXPORT_SYMBOL(matrox_cfbX_init);
 199
 200 static void matrox_accel_bmove(WPMINFO int vxres, int sy, int sx, int dy, int dx, int height, int width) {
 201         int start, end;
 202         CRITFLAGS
 203
 204         DBG(__FUNCTION__)
 205
 206         CRITBEGIN
 207
 208         if ((dy < sy) || ((dy == sy) && (dx <= sx))) {
 209                 mga_fifo(2);
 210                 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO |
 211                          M_DWG_BFCOL | M_DWG_REPLACE);
 212                 mga_outl(M_AR5, vxres);
 213                 width--;
 214                 start = sy*vxres+sx+curr_ydstorg(MINFO);
 215                 end = start+width;
 216         } else {
 217                 mga_fifo(3);
 218                 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE);
 219                 mga_outl(M_SGN, 5);
 220                 mga_outl(M_AR5, -vxres);
 221                 width--;
 222                 end = (sy+height-1)*vxres+sx+curr_ydstorg(MINFO);
 223                 start = end+width;
 224                 dy += height-1;
 225         }
 226         mga_fifo(4);
 227         mga_outl(M_AR0, end);
 228         mga_outl(M_AR3, start);
 229         mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx);
 230         mga_ydstlen(dy, height);
 231         WaitTillIdle();
 232
 233         CRITEND
 234 }
 235
 236 static void matrox_accel_bmove_lin(WPMINFO int vxres, int sy, int sx, int dy, int dx, int height, int width) {
 237         int start, end;
 238         CRITFLAGS
 239
 240         DBG(__FUNCTION__)
 241
 242         CRITBEGIN
 243
 244         if ((dy < sy) || ((dy == sy) && (dx <= sx))) {
 245                 mga_fifo(2);
 246                 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO |
 247                         M_DWG_BFCOL | M_DWG_REPLACE);
 248                 mga_outl(M_AR5, vxres);
 249                 width--;
 250                 start = sy*vxres+sx+curr_ydstorg(MINFO);
 251                 end = start+width;
 252         } else {
 253                 mga_fifo(3);
 254                 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE);
 255                 mga_outl(M_SGN, 5);
 256                 mga_outl(M_AR5, -vxres);
 257                 width--;
 258                 end = (sy+height-1)*vxres+sx+curr_ydstorg(MINFO);
 259                 start = end+width;
 260                 dy += height-1;
 261         }
 262         mga_fifo(5);
 263         mga_outl(M_AR0, end);
 264         mga_outl(M_AR3, start);
 265         mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx);
 266         mga_outl(M_YDST, dy*vxres >> 5);
 267         mga_outl(M_LEN | M_EXEC, height);
 268         WaitTillIdle();
 269
 270         CRITEND
 271 }
 272
 273 static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
 274         MINFO_FROM_INFO(info);
 275
 276         if ((area->sx | area->dx | area->width) & 1)
 277                 cfb_copyarea(info, area);
 278         else
 279                 matrox_accel_bmove_lin(PMINFO ACCESS_FBINFO(fbcon.var.xres_virtual) >> 1, area->sy, area->sx >> 1, area->dy, area->dx >> 1, area->height, area->width >> 1);
 280 }
 281
 282 static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
 283         MINFO_FROM_INFO(info);
 284
 285         matrox_accel_bmove(PMINFO ACCESS_FBINFO(fbcon.var.xres_virtual), area->sy, area->sx, area->dy, area->dx, area->height, area->width);
 286 }
 287
 288 static void matroxfb_accel_clear(WPMINFO u_int32_t color, int sy, int sx, int height,
 289                 int width) {
 290         CRITFLAGS
 291
 292         DBG(__FUNCTION__)
 293
 294         CRITBEGIN
 295
 296         mga_fifo(5);
 297         mga_outl(M_DWGCTL, ACCESS_FBINFO(accel.m_dwg_rect) | M_DWG_REPLACE);
 298         mga_outl(M_FCOL, color);
 299         mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx);
 300         mga_ydstlen(sy, height);
 301         WaitTillIdle();
 302
 303         CRITEND
 304 }
 305
 306 static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
 307         MINFO_FROM_INFO(info);
 308
 309         switch (rect->rop) {
 310                 case ROP_COPY:
 311                         matroxfb_accel_clear(PMINFO ((u_int32_t*)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
 312                         break;
 313         }
 314 }
 315
 316 static void matroxfb_cfb4_clear(WPMINFO u_int32_t bgx, int sy, int sx, int height, int width) {
 317         int whattodo;
 318         CRITFLAGS
 319
 320         DBG(__FUNCTION__)
 321
 322         CRITBEGIN
 323
 324         whattodo = 0;
 325         if (sx & 1) {
 326                 sx ++;
 327                 if (!width) return;
 328                 width --;
 329                 whattodo = 1;
 330         }
 331         if (width & 1) {
 332                 whattodo |= 2;
 333         }
 334         width >>= 1;
 335         sx >>= 1;
 336         if (width) {
 337                 mga_fifo(5);
 338                 mga_outl(M_DWGCTL, ACCESS_FBINFO(accel.m_dwg_rect) | M_DWG_REPLACE2);
 339                 mga_outl(M_FCOL, bgx);
 340                 mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx);
 341                 mga_outl(M_YDST, sy * ACCESS_FBINFO(fbcon).var.xres_virtual >> 6);
 342                 mga_outl(M_LEN | M_EXEC, height);
 343                 WaitTillIdle();
 344         }
 345         if (whattodo) {
 346                 u_int32_t step = ACCESS_FBINFO(fbcon).var.xres_virtual >> 1;
 347                 vaddr_t vbase = ACCESS_FBINFO(video.vbase);
 348                 if (whattodo & 1) {
 349                         unsigned int uaddr = sy * step + sx - 1;
 350                         u_int32_t loop;
 351                         u_int8_t bgx2 = bgx & 0xF0;
 352                         for (loop = height; loop > 0; loop --) {
 353                                 mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0x0F) | bgx2);
 354                                 uaddr += step;
 355                         }
 356                 }
 357                 if (whattodo & 2) {
 358                         unsigned int uaddr = sy * step + sx + width;
 359                         u_int32_t loop;
 360                         u_int8_t bgx2 = bgx & 0x0F;
 361                         for (loop = height; loop > 0; loop --) {
 362                                 mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0xF0) | bgx2);
 363                                 uaddr += step;
 364                         }
 365                 }
 366         }
 367
 368         CRITEND
 369 }
 370
 371 static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
 372         MINFO_FROM_INFO(info);
 373
 374         switch (rect->rop) {
 375                 case ROP_COPY:
 376                         matroxfb_cfb4_clear(PMINFO ((u_int32_t*)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
 377                         break;
 378         }
 379 }
 380
 381 static void matroxfb_1bpp_imageblit(WPMINFO u_int32_t fgx, u_int32_t bgx,
 382                 const u_int8_t* chardata, int width, int height, int yy, int xx) {
 383         u_int32_t step;
 384         u_int32_t ydstlen;
 385         u_int32_t xlen;
 386         u_int32_t ar0;
 387         u_int32_t charcell;
 388         u_int32_t fxbndry;
 389         vaddr_t mmio;
 390         int easy;
 391         CRITFLAGS
 392
 393         DBG_HEAVY(__FUNCTION__);
 394
 395         step = (width + 7) >> 3;
 396         charcell = height * step;
 397         xlen = (charcell + 3) & ~3;
 398         ydstlen = (yy << 16) | height;
 399         if (width == step << 3) {
 400                 ar0 = height * width - 1;
 401                 easy = 1;
 402         } else {
 403                 ar0 = width - 1;
 404                 easy = 0;
 405         }
 406
 407         CRITBEGIN
 408
 409         mga_fifo(3);
 410         if (easy)
 411                 mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_LINEAR | M_DWG_REPLACE);
 412         else
 413                 mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_REPLACE);
 414         mga_outl(M_FCOL, fgx);
 415         mga_outl(M_BCOL, bgx);
 416         fxbndry = ((xx + width - 1) << 16) | xx;
 417         mmio = ACCESS_FBINFO(mmio.vbase);
 418
 419         mga_fifo(6);
 420         mga_writel(mmio, M_FXBNDRY, fxbndry);
 421         mga_writel(mmio, M_AR0, ar0);
 422         mga_writel(mmio, M_AR3, 0);
 423         if (easy) {
 424                 mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen);
 425                 mga_memcpy_toio(mmio, chardata, xlen);
 426         } else {
 427                 mga_writel(mmio, M_AR5, 0);
 428                 mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen);
 429                 if ((step & 3) == 0) {
 430                         /* Great. Source has 32bit aligned lines, so we can feed them
 431                            directly to the accelerator. */
 432                         mga_memcpy_toio(mmio, chardata, charcell);
 433                 } else if (step == 1) {
 434                         /* Special case for 1..8bit widths */
 435                         while (height--) {
 436 #if defined(__BIG_ENDIAN)
 437                                 fb_writel((*chardata) << 24, mmio.vaddr);
 438 #else
 439                                 fb_writel(*chardata, mmio.vaddr);
 440 #endif
 441                                 chardata++;
 442                         }
 443                 } else if (step == 2) {
 444                         /* Special case for 9..15bit widths */
 445                         while (height--) {
 446 #if defined(__BIG_ENDIAN)
 447                                 fb_writel((*(u_int16_t*)chardata) << 16, mmio.vaddr);
 448 #else
 449                                 fb_writel(*(u_int16_t*)chardata, mmio.vaddr);
 450 #endif
 451                                 chardata += 2;
 452                         }
 453                 } else {
 454                         /* Tell... well, why bother... */
 455                         while (height--) {
 456                                 size_t i;
 457
 458                                 for (i = 0; i < step; i += 4) {
 459                                         /* Hope that there are at least three readable bytes beyond the end of bitmap */
 460                                         fb_writel(get_unaligned((u_int32_t*)(chardata + i)),mmio.vaddr);
 461                                 }
 462                                 chardata += step;
 463                         }
 464                 }
 465         }
 466         WaitTillIdle();
 467         CRITEND
 468 }
 469
 470
 471 static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image) {
 472         MINFO_FROM_INFO(info);
 473
 474         DBG_HEAVY(__FUNCTION__);
 475
 476         if (image->depth == 1) {
 477                 u_int32_t fgx, bgx;
 478
 479                 fgx = ((u_int32_t*)info->pseudo_palette)[image->fg_color];
 480                 bgx = ((u_int32_t*)info->pseudo_palette)[image->bg_color];
 481                 matroxfb_1bpp_imageblit(PMINFO fgx, bgx, image->data, image->width, image->height, image->dy, image->dx);
 482         } else {
 483                 /* Danger! image->depth is useless: logo painting code always
 484                    passes framebuffer color depth here, although logo data are
 485                    always 8bpp and info->pseudo_palette is changed to contain
 486                    logo palette to be used (but only for true/direct-color... sic...).
 487                    So do it completely in software... */
 488                 cfb_imageblit(info, image);
 489         }
 490 }
 491
 492 MODULE_LICENSE("GPL");