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) ((x)->curr.ydstorg.pixels) 85 86#define mga_ydstlen(y,l) mga_outl(M_YDSTLEN | M_EXEC, ((y) << 16) | (l)) 87 88static 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 96static 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 104static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area); 105static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect); 106static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image); 107static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect); 108static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area); 109 110void matrox_cfbX_init(struct matrox_fb_info *minfo) 111{ 112 u_int32_t maccess; 113 u_int32_t mpitch; 114 u_int32_t mopmode; 115 int accel; 116 117 DBG(__func__) 118 119 mpitch = minfo->fbcon.var.xres_virtual; 120 121 minfo->fbops.fb_copyarea = cfb_copyarea; 122 minfo->fbops.fb_fillrect = cfb_fillrect; 123 minfo->fbops.fb_imageblit = cfb_imageblit; 124 minfo->fbops.fb_cursor = NULL; 125 126 accel = (minfo->fbcon.var.accel_flags & FB_ACCELF_TEXT) == FB_ACCELF_TEXT; 127 128 switch (minfo->fbcon.var.bits_per_pixel) { 129 case 4: maccess = 0x00000000; /* accelerate as 8bpp video */ 130 mpitch = (mpitch >> 1) | 0x8000; /* disable linearization */ 131 mopmode = M_OPMODE_4BPP; 132 matrox_cfb4_pal(minfo->cmap); 133 if (accel && !(mpitch & 1)) { 134 minfo->fbops.fb_copyarea = matroxfb_cfb4_copyarea; 135 minfo->fbops.fb_fillrect = matroxfb_cfb4_fillrect; 136 } 137 break; 138 case 8: maccess = 0x00000000; 139 mopmode = M_OPMODE_8BPP; 140 matrox_cfb8_pal(minfo->cmap); 141 if (accel) { 142 minfo->fbops.fb_copyarea = matroxfb_copyarea; 143 minfo->fbops.fb_fillrect = matroxfb_fillrect; 144 minfo->fbops.fb_imageblit = matroxfb_imageblit; 145 } 146 break; 147 case 16: if (minfo->fbcon.var.green.length == 5) 148 maccess = 0xC0000001; 149 else 150 maccess = 0x40000001; 151 mopmode = M_OPMODE_16BPP; 152 if (accel) { 153 minfo->fbops.fb_copyarea = matroxfb_copyarea; 154 minfo->fbops.fb_fillrect = matroxfb_fillrect; 155 minfo->fbops.fb_imageblit = matroxfb_imageblit; 156 } 157 break; 158 case 24: maccess = 0x00000003; 159 mopmode = M_OPMODE_24BPP; 160 if (accel) { 161 minfo->fbops.fb_copyarea = matroxfb_copyarea; 162 minfo->fbops.fb_fillrect = matroxfb_fillrect; 163 minfo->fbops.fb_imageblit = matroxfb_imageblit; 164 } 165 break; 166 case 32: maccess = 0x00000002; 167 mopmode = M_OPMODE_32BPP; 168 if (accel) { 169 minfo->fbops.fb_copyarea = matroxfb_copyarea; 170 minfo->fbops.fb_fillrect = matroxfb_fillrect; 171 minfo->fbops.fb_imageblit = matroxfb_imageblit; 172 } 173 break; 174 default: maccess = 0x00000000; 175 mopmode = 0x00000000; 176 break; /* turn off acceleration!!! */ 177 } 178 mga_fifo(8); 179 mga_outl(M_PITCH, mpitch); 180 mga_outl(M_YDSTORG, curr_ydstorg(minfo)); 181 if (minfo->capable.plnwt) 182 mga_outl(M_PLNWT, -1); 183 if (minfo->capable.srcorg) { 184 mga_outl(M_SRCORG, 0); 185 mga_outl(M_DSTORG, 0); 186 } 187 mga_outl(M_OPMODE, mopmode); 188 mga_outl(M_CXBNDRY, 0xFFFF0000); 189 mga_outl(M_YTOP, 0); 190 mga_outl(M_YBOT, 0x01FFFFFF); 191 mga_outl(M_MACCESS, maccess); 192 minfo->accel.m_dwg_rect = M_DWG_TRAP | M_DWG_SOLID | M_DWG_ARZERO | M_DWG_SGNZERO | M_DWG_SHIFTZERO; 193 if (isMilleniumII(minfo)) minfo->accel.m_dwg_rect |= M_DWG_TRANSC; 194 minfo->accel.m_opmode = mopmode; 195 minfo->accel.m_access = maccess; 196 minfo->accel.m_pitch = mpitch; 197} 198 199EXPORT_SYMBOL(matrox_cfbX_init); 200 201static void matrox_accel_restore_maccess(struct matrox_fb_info *minfo) 202{ 203 mga_outl(M_MACCESS, minfo->accel.m_access); 204 mga_outl(M_PITCH, minfo->accel.m_pitch); 205} 206 207static void matrox_accel_bmove(struct matrox_fb_info *minfo, int vxres, int sy, 208 int sx, int dy, int dx, int height, int width) 209{ 210 int start, end; 211 CRITFLAGS 212 213 DBG(__func__) 214 215 CRITBEGIN 216 217 if ((dy < sy) || ((dy == sy) && (dx <= sx))) { 218 mga_fifo(4); 219 matrox_accel_restore_maccess(minfo); 220 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO | 221 M_DWG_BFCOL | M_DWG_REPLACE); 222 mga_outl(M_AR5, vxres); 223 width--; 224 start = sy*vxres+sx+curr_ydstorg(minfo); 225 end = start+width; 226 } else { 227 mga_fifo(5); 228 matrox_accel_restore_maccess(minfo); 229 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE); 230 mga_outl(M_SGN, 5); 231 mga_outl(M_AR5, -vxres); 232 width--; 233 end = (sy+height-1)*vxres+sx+curr_ydstorg(minfo); 234 start = end+width; 235 dy += height-1; 236 } 237 mga_fifo(6); 238 matrox_accel_restore_maccess(minfo); 239 mga_outl(M_AR0, end); 240 mga_outl(M_AR3, start); 241 mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx); 242 mga_ydstlen(dy, height); 243 WaitTillIdle(); 244 245 CRITEND 246} 247 248static void matrox_accel_bmove_lin(struct matrox_fb_info *minfo, int vxres, 249 int sy, int sx, int dy, int dx, int height, 250 int width) 251{ 252 int start, end; 253 CRITFLAGS 254 255 DBG(__func__) 256 257 CRITBEGIN 258 259 if ((dy < sy) || ((dy == sy) && (dx <= sx))) { 260 mga_fifo(4); 261 matrox_accel_restore_maccess(minfo); 262 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO | 263 M_DWG_BFCOL | M_DWG_REPLACE); 264 mga_outl(M_AR5, vxres); 265 width--; 266 start = sy*vxres+sx+curr_ydstorg(minfo); 267 end = start+width; 268 } else { 269 mga_fifo(5); 270 matrox_accel_restore_maccess(minfo); 271 mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE); 272 mga_outl(M_SGN, 5); 273 mga_outl(M_AR5, -vxres); 274 width--; 275 end = (sy+height-1)*vxres+sx+curr_ydstorg(minfo); 276 start = end+width; 277 dy += height-1; 278 } 279 mga_fifo(7); 280 matrox_accel_restore_maccess(minfo); 281 mga_outl(M_AR0, end); 282 mga_outl(M_AR3, start); 283 mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx); 284 mga_outl(M_YDST, dy*vxres >> 5); 285 mga_outl(M_LEN | M_EXEC, height); 286 WaitTillIdle(); 287 288 CRITEND 289} 290 291static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area) { 292 struct matrox_fb_info *minfo = info2minfo(info); 293 294 if ((area->sx | area->dx | area->width) & 1) 295 cfb_copyarea(info, area); 296 else 297 matrox_accel_bmove_lin(minfo, minfo->fbcon.var.xres_virtual >> 1, area->sy, area->sx >> 1, area->dy, area->dx >> 1, area->height, area->width >> 1); 298} 299 300static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area) { 301 struct matrox_fb_info *minfo = info2minfo(info); 302 303 matrox_accel_bmove(minfo, minfo->fbcon.var.xres_virtual, area->sy, area->sx, area->dy, area->dx, area->height, area->width); 304} 305 306static void matroxfb_accel_clear(struct matrox_fb_info *minfo, u_int32_t color, 307 int sy, int sx, int height, int width) 308{ 309 CRITFLAGS 310 311 DBG(__func__) 312 313 CRITBEGIN 314 315 mga_fifo(7); 316 matrox_accel_restore_maccess(minfo); 317 mga_outl(M_DWGCTL, minfo->accel.m_dwg_rect | M_DWG_REPLACE); 318 mga_outl(M_FCOL, color); 319 mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx); 320 mga_ydstlen(sy, height); 321 WaitTillIdle(); 322 323 CRITEND 324} 325 326static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect) { 327 struct matrox_fb_info *minfo = info2minfo(info); 328 329 switch (rect->rop) { 330 case ROP_COPY: 331 matroxfb_accel_clear(minfo, ((u_int32_t *)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width); 332 break; 333 } 334} 335 336static void matroxfb_cfb4_clear(struct matrox_fb_info *minfo, u_int32_t bgx, 337 int sy, int sx, int height, int width) 338{ 339 int whattodo; 340 CRITFLAGS 341 342 DBG(__func__) 343 344 CRITBEGIN 345 346 whattodo = 0; 347 if (sx & 1) { 348 sx ++; 349 if (!width) return; 350 width --; 351 whattodo = 1; 352 } 353 if (width & 1) { 354 whattodo |= 2; 355 } 356 width >>= 1; 357 sx >>= 1; 358 if (width) { 359 mga_fifo(7); 360 matrox_accel_restore_maccess(minfo); 361 mga_outl(M_DWGCTL, minfo->accel.m_dwg_rect | M_DWG_REPLACE2); 362 mga_outl(M_FCOL, bgx); 363 mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx); 364 mga_outl(M_YDST, sy * minfo->fbcon.var.xres_virtual >> 6); 365 mga_outl(M_LEN | M_EXEC, height); 366 WaitTillIdle(); 367 } 368 if (whattodo) { 369 u_int32_t step = minfo->fbcon.var.xres_virtual >> 1; 370 vaddr_t vbase = minfo->video.vbase; 371 if (whattodo & 1) { 372 unsigned int uaddr = sy * step + sx - 1; 373 u_int32_t loop; 374 u_int8_t bgx2 = bgx & 0xF0; 375 for (loop = height; loop > 0; loop --) { 376 mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0x0F) | bgx2); 377 uaddr += step; 378 } 379 } 380 if (whattodo & 2) { 381 unsigned int uaddr = sy * step + sx + width; 382 u_int32_t loop; 383 u_int8_t bgx2 = bgx & 0x0F; 384 for (loop = height; loop > 0; loop --) { 385 mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0xF0) | bgx2); 386 uaddr += step; 387 } 388 } 389 } 390 391 CRITEND 392} 393 394static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect) { 395 struct matrox_fb_info *minfo = info2minfo(info); 396 397 switch (rect->rop) { 398 case ROP_COPY: 399 matroxfb_cfb4_clear(minfo, ((u_int32_t *)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width); 400 break; 401 } 402} 403 404static void matroxfb_1bpp_imageblit(struct matrox_fb_info *minfo, u_int32_t fgx, 405 u_int32_t bgx, const u_int8_t *chardata, 406 int width, int height, int yy, int xx) 407{ 408 u_int32_t step; 409 u_int32_t ydstlen; 410 u_int32_t xlen; 411 u_int32_t ar0; 412 u_int32_t charcell; 413 u_int32_t fxbndry; 414 vaddr_t mmio; 415 int easy; 416 CRITFLAGS 417 418 DBG_HEAVY(__func__); 419 420 step = (width + 7) >> 3; 421 charcell = height * step; 422 xlen = (charcell + 3) & ~3; 423 ydstlen = (yy << 16) | height; 424 if (width == step << 3) { 425 ar0 = height * width - 1; 426 easy = 1; 427 } else { 428 ar0 = width - 1; 429 easy = 0; 430 } 431 432 CRITBEGIN 433 434 mga_fifo(5); 435 matrox_accel_restore_maccess(minfo); 436 if (easy) 437 mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_LINEAR | M_DWG_REPLACE); 438 else 439 mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_REPLACE); 440 mga_outl(M_FCOL, fgx); 441 mga_outl(M_BCOL, bgx); 442 fxbndry = ((xx + width - 1) << 16) | xx; 443 mmio = minfo->mmio.vbase; 444 445 mga_fifo(8); 446 matrox_accel_restore_maccess(minfo); 447 mga_writel(mmio, M_FXBNDRY, fxbndry); 448 mga_writel(mmio, M_AR0, ar0); 449 mga_writel(mmio, M_AR3, 0); 450 if (easy) { 451 mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen); 452 mga_memcpy_toio(mmio, chardata, xlen); 453 } else { 454 mga_writel(mmio, M_AR5, 0); 455 mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen); 456 if ((step & 3) == 0) { 457 /* Great. Source has 32bit aligned lines, so we can feed them 458 directly to the accelerator. */ 459 mga_memcpy_toio(mmio, chardata, charcell); 460 } else if (step == 1) { 461 /* Special case for 1..8bit widths */ 462 while (height--) { 463#if defined(__BIG_ENDIAN) 464 fb_writel((*chardata) << 24, mmio.vaddr); 465#else 466 fb_writel(*chardata, mmio.vaddr); 467#endif 468 chardata++; 469 } 470 } else if (step == 2) { 471 /* Special case for 9..15bit widths */ 472 while (height--) { 473#if defined(__BIG_ENDIAN) 474 fb_writel((*(u_int16_t*)chardata) << 16, mmio.vaddr); 475#else 476 fb_writel(*(u_int16_t*)chardata, mmio.vaddr); 477#endif 478 chardata += 2; 479 } 480 } else { 481 /* Tell... well, why bother... */ 482 while (height--) { 483 size_t i; 484 485 for (i = 0; i < step; i += 4) { 486 /* Hope that there are at least three readable bytes beyond the end of bitmap */ 487 fb_writel(get_unaligned((u_int32_t*)(chardata + i)),mmio.vaddr); 488 } 489 chardata += step; 490 } 491 } 492 } 493 WaitTillIdle(); 494 CRITEND 495} 496 497 498static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image) { 499 struct matrox_fb_info *minfo = info2minfo(info); 500 501 DBG_HEAVY(__func__); 502 503 if (image->depth == 1) { 504 u_int32_t fgx, bgx; 505 506 fgx = ((u_int32_t*)info->pseudo_palette)[image->fg_color]; 507 bgx = ((u_int32_t*)info->pseudo_palette)[image->bg_color]; 508 matroxfb_1bpp_imageblit(minfo, fgx, bgx, image->data, image->width, image->height, image->dy, image->dx); 509 } else { 510 /* Danger! image->depth is useless: logo painting code always 511 passes framebuffer color depth here, although logo data are 512 always 8bpp and info->pseudo_palette is changed to contain 513 logo palette to be used (but only for true/direct-color... sic...). 514 So do it completely in software... */ 515 cfb_imageblit(info, image); 516 } 517} 518 519MODULE_LICENSE("GPL"); 520