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dm writecache: add cond_resched to loop in persistent_memory_claim()
[linux/fpc-iii.git] / drivers / video / console / sticore.c
blob84c3ca37040a5f34ced0a6ec8ac81108051c5182
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/drivers/video/console/sticore.c -
4 * core code for console driver using HP's STI firmware
5 *
6 * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
7 * Copyright (C) 2001-2013 Helge Deller <deller@gmx.de>
8 * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
9 *
10 * TODO:
11 * - call STI in virtual mode rather than in real mode
12 * - screen blanking with state_mgmt() in text mode STI ?
13 * - try to make it work on m68k hp workstations ;)
14 *
15 */
16
17 #include <linux/module.h>
18 #include <linux/types.h>
19 #include <linux/kernel.h>
20 #include <linux/slab.h>
21 #include <linux/init.h>
22 #include <linux/pci.h>
23 #include <linux/font.h>
24
25 #include <asm/hardware.h>
26 #include <asm/page.h>
27 #include <asm/parisc-device.h>
28 #include <asm/pdc.h>
29 #include <asm/cacheflush.h>
30 #include <asm/grfioctl.h>
31
32 #include "../fbdev/sticore.h"
33
34 #define STI_DRIVERVERSION "Version 0.9b"
35
36 static struct sti_struct *default_sti __read_mostly;
37
38 /* number of STI ROMS found and their ptrs to each struct */
39 static int num_sti_roms __read_mostly;
40 static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly;
41
42
43 /* The colour indices used by STI are
44 * 0 - Black
45 * 1 - White
46 * 2 - Red
47 * 3 - Yellow/Brown
48 * 4 - Green
49 * 5 - Cyan
50 * 6 - Blue
51 * 7 - Magenta
52 *
53 * So we have the same colours as VGA (basically one bit each for R, G, B),
54 * but have to translate them, anyway. */
55
56 static const u8 col_trans[8] = {
57 0, 6, 4, 5,
58 2, 7, 3, 1
59 };
60
61 #define c_fg(sti, c) col_trans[((c>> 8) & 7)]
62 #define c_bg(sti, c) col_trans[((c>>11) & 7)]
63 #define c_index(sti, c) ((c) & 0xff)
64
65 static const struct sti_init_flags default_init_flags = {
66 .wait = STI_WAIT,
67 .reset = 1,
68 .text = 1,
69 .nontext = 1,
70 .no_chg_bet = 1,
71 .no_chg_bei = 1,
72 .init_cmap_tx = 1,
73 };
74
75 static int sti_init_graph(struct sti_struct *sti)
76 {
77 struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
78 struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
79 struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
80 unsigned long flags;
81 int ret, err;
82
83 spin_lock_irqsave(&sti->lock, flags);
84
85 memset(inptr, 0, sizeof(*inptr));
86 inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
87 memset(inptr_ext, 0, sizeof(*inptr_ext));
88 inptr->ext_ptr = STI_PTR(inptr_ext);
89 outptr->errno = 0;
90
91 ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
92 outptr, sti->glob_cfg);
93
94 if (ret >= 0)
95 sti->text_planes = outptr->text_planes;
96 err = outptr->errno;
97
98 spin_unlock_irqrestore(&sti->lock, flags);
99
100 if (ret < 0) {
101 pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
102 return -1;
103 }
104
105 return 0;
106 }
107
108 static const struct sti_conf_flags default_conf_flags = {
109 .wait = STI_WAIT,
110 };
111
112 static void sti_inq_conf(struct sti_struct *sti)
113 {
114 struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
115 struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
116 unsigned long flags;
117 s32 ret;
118
119 outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
120
121 do {
122 spin_lock_irqsave(&sti->lock, flags);
123 memset(inptr, 0, sizeof(*inptr));
124 ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
125 inptr, outptr, sti->glob_cfg);
126 spin_unlock_irqrestore(&sti->lock, flags);
127 } while (ret == 1);
128 }
129
130 static const struct sti_font_flags default_font_flags = {
131 .wait = STI_WAIT,
132 .non_text = 0,
133 };
134
135 void
136 sti_putc(struct sti_struct *sti, int c, int y, int x)
137 {
138 struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
139 struct sti_font_inptr inptr_default = {
140 .font_start_addr= STI_PTR(sti->font->raw),
141 .index = c_index(sti, c),
142 .fg_color = c_fg(sti, c),
143 .bg_color = c_bg(sti, c),
144 .dest_x = x * sti->font_width,
145 .dest_y = y * sti->font_height,
146 };
147 struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
148 s32 ret;
149 unsigned long flags;
150
151 do {
152 spin_lock_irqsave(&sti->lock, flags);
153 *inptr = inptr_default;
154 ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
155 inptr, outptr, sti->glob_cfg);
156 spin_unlock_irqrestore(&sti->lock, flags);
157 } while (ret == 1);
158 }
159
160 static const struct sti_blkmv_flags clear_blkmv_flags = {
161 .wait = STI_WAIT,
162 .color = 1,
163 .clear = 1,
164 };
165
166 void
167 sti_set(struct sti_struct *sti, int src_y, int src_x,
168 int height, int width, u8 color)
169 {
170 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
171 struct sti_blkmv_inptr inptr_default = {
172 .fg_color = color,
173 .bg_color = color,
174 .src_x = src_x,
175 .src_y = src_y,
176 .dest_x = src_x,
177 .dest_y = src_y,
178 .width = width,
179 .height = height,
180 };
181 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
182 s32 ret;
183 unsigned long flags;
184
185 do {
186 spin_lock_irqsave(&sti->lock, flags);
187 *inptr = inptr_default;
188 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
189 inptr, outptr, sti->glob_cfg);
190 spin_unlock_irqrestore(&sti->lock, flags);
191 } while (ret == 1);
192 }
193
194 void
195 sti_clear(struct sti_struct *sti, int src_y, int src_x,
196 int height, int width, int c)
197 {
198 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
199 struct sti_blkmv_inptr inptr_default = {
200 .fg_color = c_fg(sti, c),
201 .bg_color = c_bg(sti, c),
202 .src_x = src_x * sti->font_width,
203 .src_y = src_y * sti->font_height,
204 .dest_x = src_x * sti->font_width,
205 .dest_y = src_y * sti->font_height,
206 .width = width * sti->font_width,
207 .height = height* sti->font_height,
208 };
209 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
210 s32 ret;
211 unsigned long flags;
212
213 do {
214 spin_lock_irqsave(&sti->lock, flags);
215 *inptr = inptr_default;
216 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
217 inptr, outptr, sti->glob_cfg);
218 spin_unlock_irqrestore(&sti->lock, flags);
219 } while (ret == 1);
220 }
221
222 static const struct sti_blkmv_flags default_blkmv_flags = {
223 .wait = STI_WAIT,
224 };
225
226 void
227 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
228 int dst_y, int dst_x, int height, int width)
229 {
230 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
231 struct sti_blkmv_inptr inptr_default = {
232 .src_x = src_x * sti->font_width,
233 .src_y = src_y * sti->font_height,
234 .dest_x = dst_x * sti->font_width,
235 .dest_y = dst_y * sti->font_height,
236 .width = width * sti->font_width,
237 .height = height* sti->font_height,
238 };
239 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
240 s32 ret;
241 unsigned long flags;
242
243 do {
244 spin_lock_irqsave(&sti->lock, flags);
245 *inptr = inptr_default;
246 ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
247 inptr, outptr, sti->glob_cfg);
248 spin_unlock_irqrestore(&sti->lock, flags);
249 } while (ret == 1);
250 }
251
252
253 static void sti_flush(unsigned long start, unsigned long end)
254 {
255 flush_icache_range(start, end);
256 }
257
258 static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
259 {
260 unsigned long dest_start = (unsigned long) dest;
261
262 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
263 while (count >= 4) {
264 count -= 4;
265 *(u32 *)dest = gsc_readl(base);
266 base += 4;
267 dest += 4;
268 }
269 while (count) {
270 count--;
271 *(u8 *)dest = gsc_readb(base);
272 base++;
273 dest++;
274 }
275
276 sti_flush(dest_start, (unsigned long)dest);
277 }
278
279
280
281
282 static char default_sti_path[21] __read_mostly;
283
284 #ifndef MODULE
285 static int __init sti_setup(char *str)
286 {
287 if (str)
288 strlcpy (default_sti_path, str, sizeof (default_sti_path));
289
290 return 1;
291 }
292
293 /* Assuming the machine has multiple STI consoles (=graphic cards) which
294 * all get detected by sticon, the user may define with the linux kernel
295 * parameter sti=<x> which of them will be the initial boot-console.
296 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default
297 * STI screen.
298 */
299 __setup("sti=", sti_setup);
300 #endif
301
302
303
304 static char *font_name[MAX_STI_ROMS];
305 static int font_index[MAX_STI_ROMS],
306 font_height[MAX_STI_ROMS],
307 font_width[MAX_STI_ROMS];
308 #ifndef MODULE
309 static int sti_font_setup(char *str)
310 {
311 char *x;
312 int i = 0;
313
314 /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20
315 * or sti_font=7 style command lines. */
316
317 while (i<MAX_STI_ROMS && str && *str) {
318 if (*str>='0' && *str<='9') {
319 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
320 font_height[i] = simple_strtoul(str, NULL, 0);
321 font_width[i] = simple_strtoul(x+1, NULL, 0);
322 } else {
323 font_index[i] = simple_strtoul(str, NULL, 0);
324 }
325 } else {
326 font_name[i] = str; /* fb font name */
327 }
328
329 if ((x = strchr(str, ',')))
330 *x++ = 0;
331 str = x;
332
333 i++;
334 }
335
336 return 1;
337 }
338
339 /* The optional linux kernel parameter "sti_font" defines which font
340 * should be used by the sticon driver to draw characters to the screen.
341 * Possible values are:
342 * - sti_font=<fb_fontname>:
343 * <fb_fontname> is the name of one of the linux-kernel built-in
344 * framebuffer font names (e.g. VGA8x16, SUN22x18).
345 * This is only available if the fonts have been statically compiled
346 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
347 * - sti_font=<number>
348 * most STI ROMs have built-in HP specific fonts, which can be selected
349 * by giving the desired number to the sticon driver.
350 * NOTE: This number is machine and STI ROM dependend.
351 * - sti_font=<height>x<width> (e.g. sti_font=16x8)
352 * <height> and <width> gives hints to the height and width of the
353 * font which the user wants. The sticon driver will try to use
354 * a font with this height and width, but if no suitable font is
355 * found, sticon will use the default 8x8 font.
356 */
357 __setup("sti_font=", sti_font_setup);
358 #endif
359
360
361
362 static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg,
363 unsigned int sti_mem_request)
364 {
365 struct sti_glob_cfg_ext *cfg;
366
367 DPRINTK((KERN_INFO
368 "%d text planes\n"
369 "%4d x %4d screen resolution\n"
370 "%4d x %4d offscreen\n"
371 "%4d x %4d layout\n"
372 "regions at %08x %08x %08x %08x\n"
373 "regions at %08x %08x %08x %08x\n"
374 "reent_lvl %d\n"
375 "save_addr %08x\n",
376 glob_cfg->text_planes,
377 glob_cfg->onscreen_x, glob_cfg->onscreen_y,
378 glob_cfg->offscreen_x, glob_cfg->offscreen_y,
379 glob_cfg->total_x, glob_cfg->total_y,
380 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1],
381 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3],
382 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5],
383 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7],
384 glob_cfg->reent_lvl,
385 glob_cfg->save_addr));
386
387 /* dump extended cfg */
388 cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr);
389 DPRINTK(( KERN_INFO
390 "monitor %d\n"
391 "in friendly mode: %d\n"
392 "power consumption %d watts\n"
393 "freq ref %d\n"
394 "sti_mem_addr %08x (size=%d bytes)\n",
395 cfg->curr_mon,
396 cfg->friendly_boot,
397 cfg->power,
398 cfg->freq_ref,
399 cfg->sti_mem_addr, sti_mem_request));
400 }
401
402 static void sti_dump_outptr(struct sti_struct *sti)
403 {
404 DPRINTK((KERN_INFO
405 "%d bits per pixel\n"
406 "%d used bits\n"
407 "%d planes\n"
408 "attributes %08x\n",
409 sti->sti_data->inq_outptr.bits_per_pixel,
410 sti->sti_data->inq_outptr.bits_used,
411 sti->sti_data->inq_outptr.planes,
412 sti->sti_data->inq_outptr.attributes));
413 }
414
415 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
416 unsigned long hpa)
417 {
418 struct sti_glob_cfg *glob_cfg;
419 struct sti_glob_cfg_ext *glob_cfg_ext;
420 void *save_addr;
421 void *sti_mem_addr;
422 int i, size;
423
424 if (sti->sti_mem_request < 256)
425 sti->sti_mem_request = 256; /* STI default */
426
427 size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
428
429 sti->sti_data = kzalloc(size, STI_LOWMEM);
430 if (!sti->sti_data)
431 return -ENOMEM;
432
433 glob_cfg = &sti->sti_data->glob_cfg;
434 glob_cfg_ext = &sti->sti_data->glob_cfg_ext;
435 save_addr = &sti->sti_data->save_addr;
436 sti_mem_addr = &sti->sti_data->sti_mem_addr;
437
438 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
439 glob_cfg->save_addr = STI_PTR(save_addr);
440 for (i=0; i<8; i++) {
441 unsigned long newhpa, len;
442
443 if (sti->pd) {
444 unsigned char offs = sti->rm_entry[i];
445
446 if (offs == 0)
447 continue;
448 if (offs != PCI_ROM_ADDRESS &&
449 (offs < PCI_BASE_ADDRESS_0 ||
450 offs > PCI_BASE_ADDRESS_5)) {
451 printk (KERN_WARNING
452 "STI pci region mapping for region %d (%02x) can't be mapped\n",
453 i,sti->rm_entry[i]);
454 continue;
455 }
456 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
457 } else
458 newhpa = (i == 0) ? rom_address : hpa;
459
460 sti->regions_phys[i] =
461 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
462
463 len = sti->regions[i].region_desc.length * 4096;
464 if (len)
465 glob_cfg->region_ptrs[i] = sti->regions_phys[i];
466
467 DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
468 "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
469 i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
470 len/1024,
471 sti->regions[i].region_desc.btlb,
472 sti->regions[i].region_desc.sys_only,
473 sti->regions[i].region_desc.cache,
474 sti->regions[i].region_desc.last));
475
476 /* last entry reached ? */
477 if (sti->regions[i].region_desc.last)
478 break;
479 }
480
481 if (++i<8 && sti->regions[i].region)
482 printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n",
483 __FILE__, sti->regions[i].region);
484
485 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
486
487 sti->glob_cfg = glob_cfg;
488
489 return 0;
490 }
491
492 #ifdef CONFIG_FONT_SUPPORT
493 static struct sti_cooked_font *
494 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
495 {
496 const struct font_desc *fbfont = NULL;
497 unsigned int size, bpc;
498 void *dest;
499 struct sti_rom_font *nf;
500 struct sti_cooked_font *cooked_font;
501
502 if (fbfont_name && strlen(fbfont_name))
503 fbfont = find_font(fbfont_name);
504 if (!fbfont)
505 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
506 if (!fbfont)
507 return NULL;
508
509 pr_info("STI selected %dx%d framebuffer font %s for sticon\n",
510 fbfont->width, fbfont->height, fbfont->name);
511
512 bpc = ((fbfont->width+7)/8) * fbfont->height;
513 size = bpc * 256;
514 size += sizeof(struct sti_rom_font);
515
516 nf = kzalloc(size, STI_LOWMEM);
517 if (!nf)
518 return NULL;
519
520 nf->first_char = 0;
521 nf->last_char = 255;
522 nf->width = fbfont->width;
523 nf->height = fbfont->height;
524 nf->font_type = STI_FONT_HPROMAN8;
525 nf->bytes_per_char = bpc;
526 nf->next_font = 0;
527 nf->underline_height = 1;
528 nf->underline_pos = fbfont->height - nf->underline_height;
529
530 dest = nf;
531 dest += sizeof(struct sti_rom_font);
532 memcpy(dest, fbfont->data, bpc*256);
533
534 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
535 if (!cooked_font) {
536 kfree(nf);
537 return NULL;
538 }
539
540 cooked_font->raw = nf;
541 cooked_font->next_font = NULL;
542
543 cooked_rom->font_start = cooked_font;
544
545 return cooked_font;
546 }
547 #else
548 static struct sti_cooked_font *
549 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
550 {
551 return NULL;
552 }
553 #endif
554
555 static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom,
556 int (*search_font_fnc)(struct sti_cooked_rom *, int, int))
557 {
558 struct sti_cooked_font *font;
559 int i;
560 int index = num_sti_roms;
561
562 /* check for framebuffer-font first */
563 if ((font = sti_select_fbfont(rom, font_name[index])))
564 return font;
565
566 if (font_width[index] && font_height[index])
567 font_index[index] = search_font_fnc(rom,
568 font_height[index], font_width[index]);
569
570 for (font = rom->font_start, i = font_index[index];
571 font && (i > 0);
572 font = font->next_font, i--);
573
574 if (font)
575 return font;
576 else
577 return rom->font_start;
578 }
579
580
581 static void sti_dump_rom(struct sti_rom *rom)
582 {
583 printk(KERN_INFO " id %04x-%04x, conforms to spec rev. %d.%02x\n",
584 rom->graphics_id[0],
585 rom->graphics_id[1],
586 rom->revno[0] >> 4,
587 rom->revno[0] & 0x0f);
588 DPRINTK((" supports %d monitors\n", rom->num_mons));
589 DPRINTK((" font start %08x\n", rom->font_start));
590 DPRINTK((" region list %08x\n", rom->region_list));
591 DPRINTK((" init_graph %08x\n", rom->init_graph));
592 DPRINTK((" bus support %02x\n", rom->bus_support));
593 DPRINTK((" ext bus support %02x\n", rom->ext_bus_support));
594 DPRINTK((" alternate code type %d\n", rom->alt_code_type));
595 }
596
597
598 static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
599 struct sti_rom *raw_rom)
600 {
601 struct sti_rom_font *raw_font, *font_start;
602 struct sti_cooked_font *cooked_font;
603
604 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
605 if (!cooked_font)
606 return 0;
607
608 cooked_rom->font_start = cooked_font;
609
610 raw_font = ((void *)raw_rom) + (raw_rom->font_start);
611
612 font_start = raw_font;
613 cooked_font->raw = raw_font;
614
615 while (raw_font->next_font) {
616 raw_font = ((void *)font_start) + (raw_font->next_font);
617
618 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
619 if (!cooked_font->next_font)
620 return 1;
621
622 cooked_font = cooked_font->next_font;
623
624 cooked_font->raw = raw_font;
625 }
626
627 cooked_font->next_font = NULL;
628 return 1;
629 }
630
631
632 static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
633 {
634 struct sti_cooked_font *font;
635 int i = 0;
636
637 for (font = rom->font_start; font; font = font->next_font, i++) {
638 if ((font->raw->width == width) &&
639 (font->raw->height == height))
640 return i;
641 }
642 return 0;
643 }
644
645 #define BMODE_RELOCATE(offset) offset = (offset) / 4;
646 #define BMODE_LAST_ADDR_OFFS 0x50
647
648 static void *sti_bmode_font_raw(struct sti_cooked_font *f)
649 {
650 unsigned char *n, *p, *q;
651 int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
652
653 n = kcalloc(4, size, STI_LOWMEM);
654 if (!n)
655 return NULL;
656 p = n + 3;
657 q = (unsigned char *)f->raw;
658 while (size--) {
659 *p = *q++;
660 p+=4;
661 }
662 return n + 3;
663 }
664
665 static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
666 void *dest)
667 {
668 unsigned long dest_start = (unsigned long) dest;
669
670 while (count) {
671 count--;
672 *(u8 *)dest = gsc_readl(base);
673 base += 4;
674 dest++;
675 }
676
677 sti_flush(dest_start, (unsigned long)dest);
678 }
679
680 static struct sti_rom *sti_get_bmode_rom (unsigned long address)
681 {
682 struct sti_rom *raw;
683 u32 size;
684 struct sti_rom_font *raw_font, *font_start;
685
686 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
687
688 size = (size+3) / 4;
689 raw = kmalloc(size, STI_LOWMEM);
690 if (raw) {
691 sti_bmode_rom_copy(address, size, raw);
692 memmove (&raw->res004, &raw->type[0], 0x3c);
693 raw->type[3] = raw->res004;
694
695 BMODE_RELOCATE (raw->region_list);
696 BMODE_RELOCATE (raw->font_start);
697
698 BMODE_RELOCATE (raw->init_graph);
699 BMODE_RELOCATE (raw->state_mgmt);
700 BMODE_RELOCATE (raw->font_unpmv);
701 BMODE_RELOCATE (raw->block_move);
702 BMODE_RELOCATE (raw->inq_conf);
703
704 raw_font = ((void *)raw) + raw->font_start;
705 font_start = raw_font;
706
707 while (raw_font->next_font) {
708 BMODE_RELOCATE (raw_font->next_font);
709 raw_font = ((void *)font_start) + raw_font->next_font;
710 }
711 }
712 return raw;
713 }
714
715 static struct sti_rom *sti_get_wmode_rom(unsigned long address)
716 {
717 struct sti_rom *raw;
718 unsigned long size;
719
720 /* read the ROM size directly from the struct in ROM */
721 size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
722
723 raw = kmalloc(size, STI_LOWMEM);
724 if (raw)
725 sti_rom_copy(address, size, raw);
726
727 return raw;
728 }
729
730 static int sti_read_rom(int wordmode, struct sti_struct *sti,
731 unsigned long address)
732 {
733 struct sti_cooked_rom *cooked;
734 struct sti_rom *raw = NULL;
735 unsigned long revno;
736
737 cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
738 if (!cooked)
739 goto out_err;
740
741 if (wordmode)
742 raw = sti_get_wmode_rom (address);
743 else
744 raw = sti_get_bmode_rom (address);
745
746 if (!raw)
747 goto out_err;
748
749 if (!sti_cook_fonts(cooked, raw)) {
750 printk(KERN_ERR "No font found for STI at %08lx\n", address);
751 goto out_err;
752 }
753
754 if (raw->region_list)
755 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
756
757 address = (unsigned long) STI_PTR(raw);
758
759 pr_info("STI ROM supports 32 %sbit firmware functions.\n",
760 raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
761 ? "and 64 " : "");
762
763 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
764 sti->block_move = address + (raw->block_move & 0x03ffffff);
765 sti->init_graph = address + (raw->init_graph & 0x03ffffff);
766 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
767
768 sti->rom = cooked;
769 sti->rom->raw = raw;
770
771 sti->font = sti_select_font(sti->rom, sti_search_font);
772 sti->font_width = sti->font->raw->width;
773 sti->font_height = sti->font->raw->height;
774 if (!wordmode)
775 sti->font->raw = sti_bmode_font_raw(sti->font);
776
777 sti->sti_mem_request = raw->sti_mem_req;
778 sti->graphics_id[0] = raw->graphics_id[0];
779 sti->graphics_id[1] = raw->graphics_id[1];
780
781 sti_dump_rom(raw);
782
783 /* check if the ROM routines in this card are compatible */
784 if (wordmode || sti->graphics_id[1] != 0x09A02587)
785 goto ok;
786
787 revno = (raw->revno[0] << 8) | raw->revno[1];
788
789 switch (sti->graphics_id[0]) {
790 case S9000_ID_HCRX:
791 /* HyperA or HyperB ? */
792 if (revno == 0x8408 || revno == 0x840b)
793 goto msg_not_supported;
794 break;
795 case CRT_ID_THUNDER:
796 if (revno == 0x8509)
797 goto msg_not_supported;
798 break;
799 case CRT_ID_THUNDER2:
800 if (revno == 0x850c)
801 goto msg_not_supported;
802 }
803 ok:
804 return 1;
805
806 msg_not_supported:
807 printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n");
808 printk(KERN_ERR "Please see http://parisc-linux.org/faq/"
809 "graphics-howto.html for more info.\n");
810 /* fall through */
811 out_err:
812 kfree(raw);
813 kfree(cooked);
814 return 0;
815 }
816
817 static struct sti_struct *sti_try_rom_generic(unsigned long address,
818 unsigned long hpa,
819 struct pci_dev *pd)
820 {
821 struct sti_struct *sti;
822 int ok;
823 u32 sig;
824
825 if (num_sti_roms >= MAX_STI_ROMS) {
826 printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
827 return NULL;
828 }
829
830 sti = kzalloc(sizeof(*sti), GFP_KERNEL);
831 if (!sti)
832 return NULL;
833
834 spin_lock_init(&sti->lock);
835
836 test_rom:
837 /* if we can't read the ROM, bail out early. Not being able
838 * to read the hpa is okay, for romless sti */
839 if (pdc_add_valid(address))
840 goto out_err;
841
842 sig = gsc_readl(address);
843
844 /* check for a PCI ROM structure */
845 if ((le32_to_cpu(sig)==0xaa55)) {
846 unsigned int i, rm_offset;
847 u32 *rm;
848 i = gsc_readl(address+0x04);
849 if (i != 1) {
850 /* The ROM could have multiple architecture
851 * dependent images (e.g. i386, parisc,...) */
852 printk(KERN_WARNING
853 "PCI ROM is not a STI ROM type image (0x%8x)\n", i);
854 goto out_err;
855 }
856
857 sti->pd = pd;
858
859 i = gsc_readl(address+0x0c);
860 DPRINTK(("PCI ROM size (from header) = %d kB\n",
861 le16_to_cpu(i>>16)*512/1024));
862 rm_offset = le16_to_cpu(i & 0xffff);
863 if (rm_offset) {
864 /* read 16 bytes from the pci region mapper array */
865 rm = (u32*) &sti->rm_entry;
866 *rm++ = gsc_readl(address+rm_offset+0x00);
867 *rm++ = gsc_readl(address+rm_offset+0x04);
868 *rm++ = gsc_readl(address+rm_offset+0x08);
869 *rm++ = gsc_readl(address+rm_offset+0x0c);
870 DPRINTK(("PCI region Mapper offset = %08x: ",
871 rm_offset));
872 for (i=0; i<16; i++)
873 DPRINTK(("%02x ", sti->rm_entry[i]));
874 DPRINTK(("\n"));
875 }
876
877 address += le32_to_cpu(gsc_readl(address+8));
878 DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address));
879 goto test_rom;
880 }
881
882 ok = 0;
883
884 if ((sig & 0xff) == 0x01) {
885 DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n",
886 address, hpa));
887 ok = sti_read_rom(0, sti, address);
888 }
889
890 if ((sig & 0xffff) == 0x0303) {
891 DPRINTK((" word mode ROM at %08lx, hpa at %08lx\n",
892 address, hpa));
893 ok = sti_read_rom(1, sti, address);
894 }
895
896 if (!ok)
897 goto out_err;
898
899 if (sti_init_glob_cfg(sti, address, hpa))
900 goto out_err; /* not enough memory */
901
902 /* disable STI PCI ROM. ROM and card RAM overlap and
903 * leaving it enabled would force HPMCs
904 */
905 if (sti->pd) {
906 unsigned long rom_base;
907 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
908 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
909 DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
910 }
911
912 if (sti_init_graph(sti))
913 goto out_err;
914
915 sti_inq_conf(sti);
916 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
917 sti_dump_outptr(sti);
918
919 pr_info(" graphics card name: %s\n",
920 sti->sti_data->inq_outptr.dev_name);
921
922 sti_roms[num_sti_roms] = sti;
923 num_sti_roms++;
924
925 return sti;
926
927 out_err:
928 kfree(sti);
929 return NULL;
930 }
931
932 static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
933 {
934 if (strcmp (path, default_sti_path) == 0)
935 default_sti = sti;
936 }
937
938 /*
939 * on newer systems PDC gives the address of the ROM
940 * in the additional address field addr[1] while on
941 * older Systems the PDC stores it in page0->proc_sti
942 */
943 static int __init sticore_pa_init(struct parisc_device *dev)
944 {
945 char pa_path[21];
946 struct sti_struct *sti = NULL;
947 int hpa = dev->hpa.start;
948
949 if (dev->num_addrs && dev->addr[0])
950 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
951 if (!sti)
952 sti = sti_try_rom_generic(hpa, hpa, NULL);
953 if (!sti)
954 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
955 if (!sti)
956 return 1;
957
958 print_pa_hwpath(dev, pa_path);
959 sticore_check_for_default_sti(sti, pa_path);
960 return 0;
961 }
962
963
964 static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
965 {
966 #ifdef CONFIG_PCI
967 unsigned long fb_base, rom_base;
968 unsigned int fb_len, rom_len;
969 int err;
970 struct sti_struct *sti;
971
972 err = pci_enable_device(pd);
973 if (err < 0) {
974 dev_err(&pd->dev, "Cannot enable PCI device\n");
975 return err;
976 }
977
978 fb_base = pci_resource_start(pd, 0);
979 fb_len = pci_resource_len(pd, 0);
980 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
981 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
982 if (rom_base) {
983 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
984 DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
985 }
986
987 printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
988 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
989
990 DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
991 rom_base, fb_base));
992
993 sti = sti_try_rom_generic(rom_base, fb_base, pd);
994 if (sti) {
995 char pa_path[30];
996 print_pci_hwpath(pd, pa_path);
997 sticore_check_for_default_sti(sti, pa_path);
998 }
999
1000 if (!sti) {
1001 printk(KERN_WARNING "Unable to handle STI device '%s'\n",
1002 pci_name(pd));
1003 return -ENODEV;
1004 }
1005 #endif /* CONFIG_PCI */
1006
1007 return 0;
1008 }
1009
1010
1011 static void __exit sticore_pci_remove(struct pci_dev *pd)
1012 {
1013 BUG();
1014 }
1015
1016
1017 static struct pci_device_id sti_pci_tbl[] = {
1018 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
1019 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
1020 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
1021 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
1022 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
1023 { 0, } /* terminate list */
1024 };
1025 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
1026
1027 static struct pci_driver pci_sti_driver = {
1028 .name = "sti",
1029 .id_table = sti_pci_tbl,
1030 .probe = sticore_pci_init,
1031 .remove = __exit_p(sticore_pci_remove),
1032 };
1033
1034 static struct parisc_device_id sti_pa_tbl[] = {
1035 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1036 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1037 { 0, }
1038 };
1039 MODULE_DEVICE_TABLE(parisc, sti_pa_tbl);
1040
1041 static struct parisc_driver pa_sti_driver __refdata = {
1042 .name = "sti",
1043 .id_table = sti_pa_tbl,
1044 .probe = sticore_pa_init,
1045 };
1046
1047
1048 /*
1049 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1050 */
1051
1052 static int sticore_initialized __read_mostly;
1053
1054 static void sti_init_roms(void)
1055 {
1056 if (sticore_initialized)
1057 return;
1058
1059 sticore_initialized = 1;
1060
1061 printk(KERN_INFO "STI GSC/PCI core graphics driver "
1062 STI_DRIVERVERSION "\n");
1063
1064 /* Register drivers for native & PCI cards */
1065 register_parisc_driver(&pa_sti_driver);
1066 WARN_ON(pci_register_driver(&pci_sti_driver));
1067
1068 /* if we didn't find the given default sti, take the first one */
1069 if (!default_sti)
1070 default_sti = sti_roms[0];
1071
1072 }
1073
1074 /*
1075 * index = 0 gives default sti
1076 * index > 0 gives other stis in detection order
1077 */
1078 struct sti_struct * sti_get_rom(unsigned int index)
1079 {
1080 if (!sticore_initialized)
1081 sti_init_roms();
1082
1083 if (index == 0)
1084 return default_sti;
1085
1086 if (index > num_sti_roms)
1087 return NULL;
1088
1089 return sti_roms[index-1];
1090 }
1091 EXPORT_SYMBOL(sti_get_rom);
1092
1093
1094 int sti_call(const struct sti_struct *sti, unsigned long func,
1095 const void *flags, void *inptr, void *outptr,
1096 struct sti_glob_cfg *glob_cfg)
1097 {
1098 unsigned long _flags = STI_PTR(flags);
1099 unsigned long _inptr = STI_PTR(inptr);
1100 unsigned long _outptr = STI_PTR(outptr);
1101 unsigned long _glob_cfg = STI_PTR(glob_cfg);
1102 int ret;
1103
1104 #ifdef CONFIG_64BIT
1105 /* Check for overflow when using 32bit STI on 64bit kernel. */
1106 if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32,
1107 "Out of 32bit-range pointers!"))
1108 return -1;
1109 #endif
1110
1111 ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg);
1112
1113 return ret;
1114 }
1115
1116 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1117 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1118 MODULE_LICENSE("GPL v2");
1119
Linux with added FPC-III support