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Linux 4.16.11
[linux/fpc-iii.git] / drivers / video / fbdev / matrox / matroxfb_accel.c
blob0d5cb85d071a57dca81ff161750ecd6f3aa9ac89
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
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(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
199 EXPORT_SYMBOL(matrox_cfbX_init);
200
201 static 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
207 static 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
248 static 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
291 static 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
300 static 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
306 static 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
326 static 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
336 static 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
394 static 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
404 static 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
498 static 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
519 MODULE_LICENSE("GPL");
Linux with added FPC-III support