tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
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(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
196EXPORT_SYMBOL(matrox_cfbX_init);
197
198static 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
234static 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
271static 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
280static 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
286static 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
304static 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
314static 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
369static 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
379static 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
469static 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
490MODULE_LICENSE("GPL");