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 }
  95
  96 static inline void matrox_cfb8_pal(u_int32_t* pal) {
  97         unsigned int i;
  98
  99         for (i = 0; i < 16; i++) {
 100                 pal[i] = i * 0x01010101U;
 101         }
 102 }
 103
 104 static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area);
 105 static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
 106 static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image);
 107 static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
 108 static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area);
 109
 110 void matrox_cfbX_init(WPMINFO2) {
 111         u_int32_t maccess;
 112         u_int32_t mpitch;
 113         u_int32_t mopmode;
 114         int accel;
 115
 116         DBG(__func__)
 117
 118         mpitch = ACCESS_FBINFO(fbcon).var.xres_virtual;
 119
 120         ACCESS_FBINFO(fbops).fb_copyarea = cfb_copyarea;
 121         ACCESS_FBINFO(fbops).fb_fillrect = cfb_fillrect;
 122         ACCESS_FBINFO(fbops).fb_imageblit = cfb_imageblit;
 123         ACCESS_FBINFO(fbops).fb_cursor = NULL;
 124
 125         accel = (ACCESS_FBINFO(fbcon).var.accel_flags & FB_ACCELF_TEXT) == FB_ACCELF_TEXT;
 126
 127         switch (ACCESS_FBINFO(fbcon).var.bits_per_pixel) {
 128                 case 4:         maccess = 0x00000000;   /* accelerate as 8bpp video */
 129                                 mpitch = (mpitch >> 1) | 0x8000; /* disable linearization */
 130                                 mopmode = M_OPMODE_4BPP;
 131                                 matrox_cfb4_pal(ACCESS_FBINFO(cmap));
 132                                 if (accel && !(mpitch & 1)) {
 133                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_cfb4_copyarea;
 134                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_cfb4_fillrect;
 135                                 }
 136                                 break;
 137                 case 8:         maccess = 0x00000000;
 138                                 mopmode = M_OPMODE_8BPP;
 139                                 matrox_cfb8_pal(ACCESS_FBINFO(cmap));
 140                                 if (accel) {
 141                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
 142                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
 143                                         ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
 144                                 }
 145                                 break;
 146                 case 16:        if (ACCESS_FBINFO(fbcon).var.green.length == 5)
 147                                         maccess = 0xC0000001;
 148                                 else
 149                                         maccess = 0x40000001;
 150                                 mopmode = M_OPMODE_16BPP;
 151                                 if (accel) {
 152                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
 153                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
 154                                         ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
 155                                 }
 156                                 break;
 157                 case 24:        maccess = 0x00000003;
 158                                 mopmode = M_OPMODE_24BPP;
 159                                 if (accel) {
 160                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
 161                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
 162                                         ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
 163                                 }
 164                                 break;
 165                 case 32:        maccess = 0x00000002;
 166                                 mopmode = M_OPMODE_32BPP;
 167                                 if (accel) {
 168                                         ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
 169                                         ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
 170                                         ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
 171                                 }
 172                                 break;
 173                 default:        maccess = 0x00000000;
 174                                 mopmode = 0x00000000;
 175                                 break;  /* turn off acceleration!!! */
 176         }
 177         mga_fifo(8);
 178         mga_outl(M_PITCH, mpitch);
 179         mga_outl(M_YDSTORG, curr_ydstorg(MINFO));
 180         if (ACCESS_FBINFO(capable.plnwt))
 181                 mga_outl(M_PLNWT, -1);
 182         if (ACCESS_FBINFO(capable.srcorg)) {
 183                 mga_outl(M_SRCORG, 0);
 184                 mga_outl(M_DSTORG, 0);
 185         }
 186         mga_outl(M_OPMODE, mopmode);
 187         mga_outl(M_CXBNDRY, 0xFFFF0000);
 188         mga_outl(M_YTOP, 0);
 189         mga_outl(M_YBOT, 0x01FFFFFF);
 190         mga_outl(M_MACCESS, maccess);
 191         ACCESS_FBINFO(accel.m_dwg_rect) = M_DWG_TRAP | M_DWG_SOLID | M_DWG_ARZERO | M_DWG_SGNZERO | M_DWG_SHIFTZERO;
 192         if (isMilleniumII(MINFO)) ACCESS_FBINFO(accel.m_dwg_rect) |= M_DWG_TRANSC;
 193         ACCESS_FBINFO(accel.m_opmode) = mopmode;
 194 }
 195
 196 EXPORT_SYMBOL(matrox_cfbX_init);
 197
 198 static void matrox_accel_bmove(WPMINFO int vxres, int sy, int sx, int dy, int dx, int height, int width) {
 199         int start, end;
 200         CRITFLAGS
 201
 202         DBG(__func__)
 203
 204         CRITBEGIN
 205
 206         if ((dy < sy) || ((dy == sy) && (dx <= sx))) {
 207                 mga_fifo(2);
 208                 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO |
 209                          M_DWG_BFCOL | M_DWG_REPLACE);
 210                 mga_outl(M_AR5, vxres);
 211                 width--;
 212                 start = sy*vxres+sx+curr_ydstorg(MINFO);
 213                 end = start+width;
 214         } else {
 215                 mga_fifo(3);
 216                 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE);
 217                 mga_outl(M_SGN, 5);
 218                 mga_outl(M_AR5, -vxres);
 219                 width--;
 220                 end = (sy+height-1)*vxres+sx+curr_ydstorg(MINFO);
 221                 start = end+width;
 222                 dy += height-1;
 223         }
 224         mga_fifo(4);
 225         mga_outl(M_AR0, end);
 226         mga_outl(M_AR3, start);
 227         mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx);
 228         mga_ydstlen(dy, height);
 229         WaitTillIdle();
 230
 231         CRITEND
 232 }
 233
 234 static void matrox_accel_bmove_lin(WPMINFO int vxres, int sy, int sx, int dy, int dx, int height, int width) {
 235         int start, end;
 236         CRITFLAGS
 237
 238         DBG(__func__)
 239
 240         CRITBEGIN
 241
 242         if ((dy < sy) || ((dy == sy) && (dx <= sx))) {
 243                 mga_fifo(2);
 244                 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO |
 245                         M_DWG_BFCOL | M_DWG_REPLACE);
 246                 mga_outl(M_AR5, vxres);
 247                 width--;
 248                 start = sy*vxres+sx+curr_ydstorg(MINFO);
 249                 end = start+width;
 250         } else {
 251                 mga_fifo(3);
 252                 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE);
 253                 mga_outl(M_SGN, 5);
 254                 mga_outl(M_AR5, -vxres);
 255                 width--;
 256                 end = (sy+height-1)*vxres+sx+curr_ydstorg(MINFO);
 257                 start = end+width;
 258                 dy += height-1;
 259         }
 260         mga_fifo(5);
 261         mga_outl(M_AR0, end);
 262         mga_outl(M_AR3, start);
 263         mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx);
 264         mga_outl(M_YDST, dy*vxres >> 5);
 265         mga_outl(M_LEN | M_EXEC, height);
 266         WaitTillIdle();
 267
 268         CRITEND
 269 }
 270
 271 static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
 272         MINFO_FROM_INFO(info);
 273
 274         if ((area->sx | area->dx | area->width) & 1)
 275                 cfb_copyarea(info, area);
 276         else
 277                 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);
 278 }
 279
 280 static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
 281         MINFO_FROM_INFO(info);
 282
 283         matrox_accel_bmove(PMINFO ACCESS_FBINFO(fbcon.var.xres_virtual), area->sy, area->sx, area->dy, area->dx, area->height, area->width);
 284 }
 285
 286 static void matroxfb_accel_clear(WPMINFO u_int32_t color, int sy, int sx, int height,
 287                 int width) {
 288         CRITFLAGS
 289
 290         DBG(__func__)
 291
 292         CRITBEGIN
 293
 294         mga_fifo(5);
 295         mga_outl(M_DWGCTL, ACCESS_FBINFO(accel.m_dwg_rect) | M_DWG_REPLACE);
 296         mga_outl(M_FCOL, color);
 297         mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx);
 298         mga_ydstlen(sy, height);
 299         WaitTillIdle();
 300
 301         CRITEND
 302 }
 303
 304 static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
 305         MINFO_FROM_INFO(info);
 306
 307         switch (rect->rop) {
 308                 case ROP_COPY:
 309                         matroxfb_accel_clear(PMINFO ((u_int32_t*)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
 310                         break;
 311         }
 312 }
 313
 314 static void matroxfb_cfb4_clear(WPMINFO u_int32_t bgx, int sy, int sx, int height, int width) {
 315         int whattodo;
 316         CRITFLAGS
 317
 318         DBG(__func__)
 319
 320         CRITBEGIN
 321
 322         whattodo = 0;
 323         if (sx & 1) {
 324                 sx ++;
 325                 if (!width) return;
 326                 width --;
 327                 whattodo = 1;
 328         }
 329         if (width & 1) {
 330                 whattodo |= 2;
 331         }
 332         width >>= 1;
 333         sx >>= 1;
 334         if (width) {
 335                 mga_fifo(5);
 336                 mga_outl(M_DWGCTL, ACCESS_FBINFO(accel.m_dwg_rect) | M_DWG_REPLACE2);
 337                 mga_outl(M_FCOL, bgx);
 338                 mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx);
 339                 mga_outl(M_YDST, sy * ACCESS_FBINFO(fbcon).var.xres_virtual >> 6);
 340                 mga_outl(M_LEN | M_EXEC, height);
 341                 WaitTillIdle();
 342         }
 343         if (whattodo) {
 344                 u_int32_t step = ACCESS_FBINFO(fbcon).var.xres_virtual >> 1;
 345                 vaddr_t vbase = ACCESS_FBINFO(video.vbase);
 346                 if (whattodo & 1) {
 347                         unsigned int uaddr = sy * step + sx - 1;
 348                         u_int32_t loop;
 349                         u_int8_t bgx2 = bgx & 0xF0;
 350                         for (loop = height; loop > 0; loop --) {
 351                                 mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0x0F) | bgx2);
 352                                 uaddr += step;
 353                         }
 354                 }
 355                 if (whattodo & 2) {
 356                         unsigned int uaddr = sy * step + sx + width;
 357                         u_int32_t loop;
 358                         u_int8_t bgx2 = bgx & 0x0F;
 359                         for (loop = height; loop > 0; loop --) {
 360                                 mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0xF0) | bgx2);
 361                                 uaddr += step;
 362                         }
 363                 }
 364         }
 365
 366         CRITEND
 367 }
 368
 369 static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
 370         MINFO_FROM_INFO(info);
 371
 372         switch (rect->rop) {
 373                 case ROP_COPY:
 374                         matroxfb_cfb4_clear(PMINFO ((u_int32_t*)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
 375                         break;
 376         }
 377 }
 378
 379 static void matroxfb_1bpp_imageblit(WPMINFO u_int32_t fgx, u_int32_t bgx,
 380                 const u_int8_t* chardata, int width, int height, int yy, int xx) {
 381         u_int32_t step;
 382         u_int32_t ydstlen;
 383         u_int32_t xlen;
 384         u_int32_t ar0;
 385         u_int32_t charcell;
 386         u_int32_t fxbndry;
 387         vaddr_t mmio;
 388         int easy;
 389         CRITFLAGS
 390
 391         DBG_HEAVY(__func__);
 392
 393         step = (width + 7) >> 3;
 394         charcell = height * step;
 395         xlen = (charcell + 3) & ~3;
 396         ydstlen = (yy << 16) | height;
 397         if (width == step << 3) {
 398                 ar0 = height * width - 1;
 399                 easy = 1;
 400         } else {
 401                 ar0 = width - 1;
 402                 easy = 0;
 403         }
 404
 405         CRITBEGIN
 406
 407         mga_fifo(3);
 408         if (easy)
 409                 mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_LINEAR | M_DWG_REPLACE);
 410         else
 411                 mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_REPLACE);
 412         mga_outl(M_FCOL, fgx);
 413         mga_outl(M_BCOL, bgx);
 414         fxbndry = ((xx + width - 1) << 16) | xx;
 415         mmio = ACCESS_FBINFO(mmio.vbase);
 416
 417         mga_fifo(6);
 418         mga_writel(mmio, M_FXBNDRY, fxbndry);
 419         mga_writel(mmio, M_AR0, ar0);
 420         mga_writel(mmio, M_AR3, 0);
 421         if (easy) {
 422                 mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen);
 423                 mga_memcpy_toio(mmio, chardata, xlen);
 424         } else {
 425                 mga_writel(mmio, M_AR5, 0);
 426                 mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen);
 427                 if ((step & 3) == 0) {
 428                         /* Great. Source has 32bit aligned lines, so we can feed them
 429                            directly to the accelerator. */
 430                         mga_memcpy_toio(mmio, chardata, charcell);
 431                 } else if (step == 1) {
 432                         /* Special case for 1..8bit widths */
 433                         while (height--) {
 434 #if defined(__BIG_ENDIAN)
 435                                 fb_writel((*chardata) << 24, mmio.vaddr);
 436 #else
 437                                 fb_writel(*chardata, mmio.vaddr);
 438 #endif
 439                                 chardata++;
 440                         }
 441                 } else if (step == 2) {
 442                         /* Special case for 9..15bit widths */
 443                         while (height--) {
 444 #if defined(__BIG_ENDIAN)
 445                                 fb_writel((*(u_int16_t*)chardata) << 16, mmio.vaddr);
 446 #else
 447                                 fb_writel(*(u_int16_t*)chardata, mmio.vaddr);
 448 #endif
 449                                 chardata += 2;
 450                         }
 451                 } else {
 452                         /* Tell... well, why bother... */
 453                         while (height--) {
 454                                 size_t i;
 455
 456                                 for (i = 0; i < step; i += 4) {
 457                                         /* Hope that there are at least three readable bytes beyond the end of bitmap */
 458                                         fb_writel(get_unaligned((u_int32_t*)(chardata + i)),mmio.vaddr);
 459                                 }
 460                                 chardata += step;
 461                         }
 462                 }
 463         }
 464         WaitTillIdle();
 465         CRITEND
 466 }
 467
 468
 469 static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image) {
 470         MINFO_FROM_INFO(info);
 471
 472         DBG_HEAVY(__func__);
 473
 474         if (image->depth == 1) {
 475                 u_int32_t fgx, bgx;
 476
 477                 fgx = ((u_int32_t*)info->pseudo_palette)[image->fg_color];
 478                 bgx = ((u_int32_t*)info->pseudo_palette)[image->bg_color];
 479                 matroxfb_1bpp_imageblit(PMINFO fgx, bgx, image->data, image->width, image->height, image->dy, image->dx);
 480         } else {
 481                 /* Danger! image->depth is useless: logo painting code always
 482                    passes framebuffer color depth here, although logo data are
 483                    always 8bpp and info->pseudo_palette is changed to contain
 484                    logo palette to be used (but only for true/direct-color... sic...).
 485                    So do it completely in software... */
 486                 cfb_imageblit(info, image);
 487         }
 488 }
 489
 490 MODULE_LICENSE("GPL");