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Freezer: make kernel threads nonfreezable by default
[mirror_ubuntu-artful-kernel.git] / drivers / video / ps3fb.c
1 /*
2 * linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
3 *
4 * Copyright (C) 2006 Sony Computer Entertainment Inc.
5 * Copyright 2006, 2007 Sony Corporation
6 *
7 * This file is based on :
8 *
9 * linux/drivers/video/vfb.c -- Virtual frame buffer device
10 *
11 * Copyright (C) 2002 James Simmons
12 *
13 * Copyright (C) 1997 Geert Uytterhoeven
14 *
15 * This file is subject to the terms and conditions of the GNU General Public
16 * License. See the file COPYING in the main directory of this archive for
17 * more details.
18 */
19
20 #include <linux/module.h>
21 #include <linux/kernel.h>
22 #include <linux/errno.h>
23 #include <linux/string.h>
24 #include <linux/mm.h>
25 #include <linux/tty.h>
26 #include <linux/slab.h>
27 #include <linux/vmalloc.h>
28 #include <linux/delay.h>
29 #include <linux/interrupt.h>
30 #include <linux/console.h>
31 #include <linux/ioctl.h>
32 #include <linux/notifier.h>
33 #include <linux/reboot.h>
34 #include <linux/kthread.h>
35 #include <linux/freezer.h>
36
37 #include <asm/uaccess.h>
38 #include <linux/fb.h>
39 #include <linux/init.h>
40 #include <asm/time.h>
41
42 #include <asm/abs_addr.h>
43 #include <asm/lv1call.h>
44 #include <asm/ps3av.h>
45 #include <asm/ps3fb.h>
46 #include <asm/ps3.h>
47
48
49 #define DEVICE_NAME "ps3fb"
50
51 #ifdef PS3FB_DEBUG
52 #define DPRINTK(fmt, args...) printk("%s: " fmt, __func__ , ##args)
53 #else
54 #define DPRINTK(fmt, args...)
55 #endif
56
57 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC 0x101
58 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP 0x102
59 #define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP 0x600
60 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
61 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC 0x602
62
63 #define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION (1ULL << 32)
64
65 #define L1GPU_DISPLAY_SYNC_HSYNC 1
66 #define L1GPU_DISPLAY_SYNC_VSYNC 2
67
68 #define DDR_SIZE (0) /* used no ddr */
69 #define GPU_OFFSET (64 * 1024)
70 #define GPU_IOIF (0x0d000000UL)
71
72 #define PS3FB_FULL_MODE_BIT 0x80
73
74 #define GPU_INTR_STATUS_VSYNC_0 0 /* vsync on head A */
75 #define GPU_INTR_STATUS_VSYNC_1 1 /* vsync on head B */
76 #define GPU_INTR_STATUS_FLIP_0 3 /* flip head A */
77 #define GPU_INTR_STATUS_FLIP_1 4 /* flip head B */
78 #define GPU_INTR_STATUS_QUEUE_0 5 /* queue head A */
79 #define GPU_INTR_STATUS_QUEUE_1 6 /* queue head B */
80
81 #define GPU_DRIVER_INFO_VERSION 0x211
82
83 /* gpu internals */
84 struct display_head {
85 u64 be_time_stamp;
86 u32 status;
87 u32 offset;
88 u32 res1;
89 u32 res2;
90 u32 field;
91 u32 reserved1;
92
93 u64 res3;
94 u32 raster;
95
96 u64 vblank_count;
97 u32 field_vsync;
98 u32 reserved2;
99 };
100
101 struct gpu_irq {
102 u32 irq_outlet;
103 u32 status;
104 u32 mask;
105 u32 video_cause;
106 u32 graph_cause;
107 u32 user_cause;
108
109 u32 res1;
110 u64 res2;
111
112 u32 reserved[4];
113 };
114
115 struct gpu_driver_info {
116 u32 version_driver;
117 u32 version_gpu;
118 u32 memory_size;
119 u32 hardware_channel;
120
121 u32 nvcore_frequency;
122 u32 memory_frequency;
123
124 u32 reserved[1063];
125 struct display_head display_head[8];
126 struct gpu_irq irq;
127 };
128
129 struct ps3fb_priv {
130 unsigned int irq_no;
131
132 u64 context_handle, memory_handle;
133 void *xdr_ea;
134 struct gpu_driver_info *dinfo;
135 u32 res_index;
136
137 u64 vblank_count; /* frame count */
138 wait_queue_head_t wait_vsync;
139
140 u32 num_frames; /* num of frame buffers */
141 atomic_t ext_flip; /* on/off flip with vsync */
142 atomic_t f_count; /* fb_open count */
143 int is_blanked;
144 int is_kicked;
145 struct task_struct *task;
146 };
147 static struct ps3fb_priv ps3fb;
148
149 struct ps3fb_res_table {
150 u32 xres;
151 u32 yres;
152 u32 xoff;
153 u32 yoff;
154 u32 type;
155 };
156 #define PS3FB_RES_FULL 1
157 static const struct ps3fb_res_table ps3fb_res[] = {
158 /* res_x,y margin_x,y full */
159 { 720, 480, 72, 48 , 0},
160 { 720, 576, 72, 58 , 0},
161 { 1280, 720, 78, 38 , 0},
162 { 1920, 1080, 116, 58 , 0},
163 /* full mode */
164 { 720, 480, 0, 0 , PS3FB_RES_FULL},
165 { 720, 576, 0, 0 , PS3FB_RES_FULL},
166 { 1280, 720, 0, 0 , PS3FB_RES_FULL},
167 { 1920, 1080, 0, 0 , PS3FB_RES_FULL},
168 /* vesa: normally full mode */
169 { 1280, 768, 0, 0 , 0},
170 { 1280, 1024, 0, 0 , 0},
171 { 1920, 1200, 0, 0 , 0},
172 { 0, 0, 0, 0 , 0} };
173
174 /* default resolution */
175 #define GPU_RES_INDEX 0 /* 720 x 480 */
176
177 static const struct fb_videomode ps3fb_modedb[] = {
178 /* 60 Hz broadcast modes (modes "1" to "5") */
179 {
180 /* 480i */
181 "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
182 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
183 }, {
184 /* 480p */
185 "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
186 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
187 }, {
188 /* 720p */
189 "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
190 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
191 }, {
192 /* 1080i */
193 "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
194 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
195 }, {
196 /* 1080p */
197 "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
198 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
199 },
200
201 /* 50 Hz broadcast modes (modes "6" to "10") */
202 {
203 /* 576i */
204 "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
205 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
206 }, {
207 /* 576p */
208 "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
209 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
210 }, {
211 /* 720p */
212 "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
213 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
214 }, {
215 /* 1080 */
216 "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
217 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
218 }, {
219 /* 1080p */
220 "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
221 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
222 },
223
224 /* VESA modes (modes "11" to "13") */
225 {
226 /* WXGA */
227 "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
228 0, FB_VMODE_NONINTERLACED,
229 FB_MODE_IS_VESA
230 }, {
231 /* SXGA */
232 "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
233 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
234 FB_MODE_IS_VESA
235 }, {
236 /* WUXGA */
237 "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
238 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
239 FB_MODE_IS_VESA
240 },
241
242 /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
243 {
244 /* 480if */
245 "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
246 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
247 }, {
248 /* 480pf */
249 "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
250 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
251 }, {
252 /* 720pf */
253 "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
254 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
255 }, {
256 /* 1080if */
257 "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
258 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
259 }, {
260 /* 1080pf */
261 "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
262 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
263 },
264
265 /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
266 {
267 /* 576if */
268 "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
269 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
270 }, {
271 /* 576pf */
272 "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
273 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
274 }, {
275 /* 720pf */
276 "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
277 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
278 }, {
279 /* 1080if */
280 "1080f", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
281 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
282 }, {
283 /* 1080pf */
284 "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
285 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
286 }
287 };
288
289
290 #define HEAD_A
291 #define HEAD_B
292
293 #define X_OFF(i) (ps3fb_res[i].xoff) /* left/right margin (pixel) */
294 #define Y_OFF(i) (ps3fb_res[i].yoff) /* top/bottom margin (pixel) */
295 #define WIDTH(i) (ps3fb_res[i].xres) /* width of FB */
296 #define HEIGHT(i) (ps3fb_res[i].yres) /* height of FB */
297 #define BPP 4 /* number of bytes per pixel */
298 #define VP_OFF(i) (WIDTH(i) * Y_OFF(i) * BPP + X_OFF(i) * BPP)
299 #define FB_OFF(i) (GPU_OFFSET - VP_OFF(i) % GPU_OFFSET)
300
301 static int ps3fb_mode;
302 module_param(ps3fb_mode, int, 0);
303
304 static char *mode_option __devinitdata;
305
306 static int ps3fb_get_res_table(u32 xres, u32 yres)
307 {
308 int full_mode;
309 unsigned int i;
310 u32 x, y, f;
311
312 full_mode = (ps3fb_mode & PS3FB_FULL_MODE_BIT) ? PS3FB_RES_FULL : 0;
313 for (i = 0;; i++) {
314 x = ps3fb_res[i].xres;
315 y = ps3fb_res[i].yres;
316 f = ps3fb_res[i].type;
317
318 if (!x) {
319 DPRINTK("ERROR: ps3fb_get_res_table()\n");
320 return -1;
321 }
322
323 if (full_mode == PS3FB_RES_FULL && f != PS3FB_RES_FULL)
324 continue;
325
326 if (x == xres && (yres == 0 || y == yres))
327 break;
328
329 x = x - 2 * ps3fb_res[i].xoff;
330 y = y - 2 * ps3fb_res[i].yoff;
331 if (x == xres && (yres == 0 || y == yres))
332 break;
333 }
334 return i;
335 }
336
337 static unsigned int ps3fb_find_mode(const struct fb_var_screeninfo *var,
338 u32 *line_length)
339 {
340 unsigned int i, mode;
341
342 for (i = 0; i < ARRAY_SIZE(ps3fb_modedb); i++)
343 if (var->xres == ps3fb_modedb[i].xres &&
344 var->yres == ps3fb_modedb[i].yres &&
345 var->pixclock == ps3fb_modedb[i].pixclock &&
346 var->hsync_len == ps3fb_modedb[i].hsync_len &&
347 var->vsync_len == ps3fb_modedb[i].vsync_len &&
348 var->left_margin == ps3fb_modedb[i].left_margin &&
349 var->right_margin == ps3fb_modedb[i].right_margin &&
350 var->upper_margin == ps3fb_modedb[i].upper_margin &&
351 var->lower_margin == ps3fb_modedb[i].lower_margin &&
352 var->sync == ps3fb_modedb[i].sync &&
353 (var->vmode & FB_VMODE_MASK) == ps3fb_modedb[i].vmode) {
354 /* Cropped broadcast modes use the full line_length */
355 *line_length =
356 ps3fb_modedb[i < 10 ? i + 13 : i].xres * 4;
357 /* Full broadcast modes have the full mode bit set */
358 mode = i > 12 ? (i - 12) | PS3FB_FULL_MODE_BIT : i + 1;
359
360 DPRINTK("ps3fb_find_mode: mode %u\n", mode);
361 return mode;
362 }
363
364 DPRINTK("ps3fb_find_mode: mode not found\n");
365 return 0;
366
367 }
368
369 static const struct fb_videomode *ps3fb_default_mode(void)
370 {
371 u32 mode = ps3fb_mode & PS3AV_MODE_MASK;
372 u32 flags;
373
374 if (mode < 1 || mode > 13)
375 return NULL;
376
377 flags = ps3fb_mode & ~PS3AV_MODE_MASK;
378
379 if (mode <= 10 && flags & PS3FB_FULL_MODE_BIT) {
380 /* Full broadcast mode */
381 return &ps3fb_modedb[mode + 12];
382 }
383
384 return &ps3fb_modedb[mode - 1];
385 }
386
387 static int ps3fb_sync(u32 frame)
388 {
389 int i, status;
390 u32 xres, yres;
391 u64 fb_ioif, offset;
392
393 i = ps3fb.res_index;
394 xres = ps3fb_res[i].xres;
395 yres = ps3fb_res[i].yres;
396
397 if (frame > ps3fb.num_frames - 1) {
398 printk(KERN_WARNING "%s: invalid frame number (%u)\n",
399 __func__, frame);
400 return -EINVAL;
401 }
402 offset = xres * yres * BPP * frame;
403
404 fb_ioif = GPU_IOIF + FB_OFF(i) + offset;
405 status = lv1_gpu_context_attribute(ps3fb.context_handle,
406 L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
407 offset, fb_ioif,
408 L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
409 (xres << 16) | yres,
410 xres * BPP); /* line_length */
411 if (status)
412 printk(KERN_ERR
413 "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
414 __func__, status);
415 #ifdef HEAD_A
416 status = lv1_gpu_context_attribute(ps3fb.context_handle,
417 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
418 0, offset, 0, 0);
419 if (status)
420 printk(KERN_ERR
421 "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
422 __func__, status);
423 #endif
424 #ifdef HEAD_B
425 status = lv1_gpu_context_attribute(ps3fb.context_handle,
426 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
427 1, offset, 0, 0);
428 if (status)
429 printk(KERN_ERR
430 "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
431 __func__, status);
432 #endif
433 return 0;
434 }
435
436
437 static int ps3fb_open(struct fb_info *info, int user)
438 {
439 atomic_inc(&ps3fb.f_count);
440 return 0;
441 }
442
443 static int ps3fb_release(struct fb_info *info, int user)
444 {
445 if (atomic_dec_and_test(&ps3fb.f_count)) {
446 if (atomic_read(&ps3fb.ext_flip)) {
447 atomic_set(&ps3fb.ext_flip, 0);
448 ps3fb_sync(0); /* single buffer */
449 }
450 }
451 return 0;
452 }
453
454 /*
455 * Setting the video mode has been split into two parts.
456 * First part, xxxfb_check_var, must not write anything
457 * to hardware, it should only verify and adjust var.
458 * This means it doesn't alter par but it does use hardware
459 * data from it to check this var.
460 */
461
462 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
463 {
464 u32 line_length;
465 int mode;
466 int i;
467
468 DPRINTK("var->xres:%u info->var.xres:%u\n", var->xres, info->var.xres);
469 DPRINTK("var->yres:%u info->var.yres:%u\n", var->yres, info->var.yres);
470
471 /* FIXME For now we do exact matches only */
472 mode = ps3fb_find_mode(var, &line_length);
473 if (!mode)
474 return -EINVAL;
475
476 /*
477 * FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
478 * as FB_VMODE_SMOOTH_XPAN is only used internally
479 */
480
481 if (var->vmode & FB_VMODE_CONUPDATE) {
482 var->vmode |= FB_VMODE_YWRAP;
483 var->xoffset = info->var.xoffset;
484 var->yoffset = info->var.yoffset;
485 }
486
487 /* Virtual screen and panning are not supported */
488 if (var->xres_virtual > var->xres || var->yres_virtual > var->yres ||
489 var->xoffset || var->yoffset) {
490 DPRINTK("Virtual screen and panning are not supported\n");
491 return -EINVAL;
492 }
493
494 var->xres_virtual = var->xres;
495 var->yres_virtual = var->yres;
496
497 /* We support ARGB8888 only */
498 if (var->bits_per_pixel > 32 || var->grayscale ||
499 var->red.offset > 16 || var->green.offset > 8 ||
500 var->blue.offset > 0 || var->transp.offset > 24 ||
501 var->red.length > 8 || var->green.length > 8 ||
502 var->blue.length > 8 || var->transp.length > 8 ||
503 var->red.msb_right || var->green.msb_right ||
504 var->blue.msb_right || var->transp.msb_right || var->nonstd) {
505 DPRINTK("We support ARGB8888 only\n");
506 return -EINVAL;
507 }
508
509 var->bits_per_pixel = 32;
510 var->red.offset = 16;
511 var->green.offset = 8;
512 var->blue.offset = 0;
513 var->transp.offset = 24;
514 var->red.length = 8;
515 var->green.length = 8;
516 var->blue.length = 8;
517 var->transp.length = 8;
518 var->red.msb_right = 0;
519 var->green.msb_right = 0;
520 var->blue.msb_right = 0;
521 var->transp.msb_right = 0;
522
523 /* Rotation is not supported */
524 if (var->rotate) {
525 DPRINTK("Rotation is not supported\n");
526 return -EINVAL;
527 }
528
529 /* Memory limit */
530 i = ps3fb_get_res_table(var->xres, var->yres);
531 if (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP > ps3fb_videomemory.size) {
532 DPRINTK("Not enough memory\n");
533 return -ENOMEM;
534 }
535
536 var->height = -1;
537 var->width = -1;
538
539 return 0;
540 }
541
542 /*
543 * This routine actually sets the video mode.
544 */
545
546 static int ps3fb_set_par(struct fb_info *info)
547 {
548 unsigned int mode;
549 int i;
550 unsigned long offset;
551 static int first = 1;
552
553 DPRINTK("xres:%d xv:%d yres:%d yv:%d clock:%d\n",
554 info->var.xres, info->var.xres_virtual,
555 info->var.yres, info->var.yres_virtual, info->var.pixclock);
556 i = ps3fb_get_res_table(info->var.xres, info->var.yres);
557 ps3fb.res_index = i;
558
559 mode = ps3fb_find_mode(&info->var, &info->fix.line_length);
560 if (!mode)
561 return -EINVAL;
562
563 offset = FB_OFF(i) + VP_OFF(i);
564 info->fix.smem_len = ps3fb_videomemory.size - offset;
565 info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
566 memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
567
568 ps3fb.num_frames = ps3fb_videomemory.size/
569 (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP);
570
571 /* Keep the special bits we cannot set using fb_var_screeninfo */
572 ps3fb_mode = (ps3fb_mode & ~PS3AV_MODE_MASK) | mode;
573
574 if (ps3av_set_video_mode(ps3fb_mode, first))
575 return -EINVAL;
576
577 first = 0;
578 return 0;
579 }
580
581 /*
582 * Set a single color register. The values supplied are already
583 * rounded down to the hardware's capabilities (according to the
584 * entries in the var structure). Return != 0 for invalid regno.
585 */
586
587 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
588 unsigned int green, unsigned int blue,
589 unsigned int transp, struct fb_info *info)
590 {
591 if (regno >= 16)
592 return 1;
593
594 red >>= 8;
595 green >>= 8;
596 blue >>= 8;
597 transp >>= 8;
598
599 ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
600 green << 8 | blue;
601 return 0;
602 }
603
604 /*
605 * As we have a virtual frame buffer, we need our own mmap function
606 */
607
608 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
609 {
610 unsigned long size, offset;
611 int i;
612
613 i = ps3fb_get_res_table(info->var.xres, info->var.yres);
614 if (i == -1)
615 return -EINVAL;
616
617 size = vma->vm_end - vma->vm_start;
618 offset = vma->vm_pgoff << PAGE_SHIFT;
619 if (offset + size > info->fix.smem_len)
620 return -EINVAL;
621
622 offset += info->fix.smem_start + FB_OFF(i) + VP_OFF(i);
623 if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
624 size, vma->vm_page_prot))
625 return -EAGAIN;
626
627 printk(KERN_DEBUG "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n", offset,
628 vma->vm_start);
629 return 0;
630 }
631
632 /*
633 * Blank the display
634 */
635
636 static int ps3fb_blank(int blank, struct fb_info *info)
637 {
638 int retval;
639
640 DPRINTK("%s: blank:%d\n", __func__, blank);
641 switch (blank) {
642 case FB_BLANK_POWERDOWN:
643 case FB_BLANK_HSYNC_SUSPEND:
644 case FB_BLANK_VSYNC_SUSPEND:
645 case FB_BLANK_NORMAL:
646 retval = ps3av_video_mute(1); /* mute on */
647 if (!retval)
648 ps3fb.is_blanked = 1;
649 break;
650
651 default: /* unblank */
652 retval = ps3av_video_mute(0); /* mute off */
653 if (!retval)
654 ps3fb.is_blanked = 0;
655 break;
656 }
657 return retval;
658 }
659
660 static int ps3fb_get_vblank(struct fb_vblank *vblank)
661 {
662 memset(vblank, 0, sizeof(&vblank));
663 vblank->flags = FB_VBLANK_HAVE_VSYNC;
664 return 0;
665 }
666
667 int ps3fb_wait_for_vsync(u32 crtc)
668 {
669 int ret;
670 u64 count;
671
672 count = ps3fb.vblank_count;
673 ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
674 count != ps3fb.vblank_count,
675 HZ / 10);
676 if (!ret)
677 return -ETIMEDOUT;
678
679 return 0;
680 }
681
682 EXPORT_SYMBOL_GPL(ps3fb_wait_for_vsync);
683
684 void ps3fb_flip_ctl(int on, void *data)
685 {
686 struct ps3fb_priv *priv = data;
687 if (on)
688 atomic_dec_if_positive(&priv->ext_flip);
689 else
690 atomic_inc(&priv->ext_flip);
691 }
692
693
694 /*
695 * ioctl
696 */
697
698 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
699 unsigned long arg)
700 {
701 void __user *argp = (void __user *)arg;
702 u32 val, old_mode;
703 int retval = -EFAULT;
704
705 switch (cmd) {
706 case FBIOGET_VBLANK:
707 {
708 struct fb_vblank vblank;
709 DPRINTK("FBIOGET_VBLANK:\n");
710 retval = ps3fb_get_vblank(&vblank);
711 if (retval)
712 break;
713
714 if (copy_to_user(argp, &vblank, sizeof(vblank)))
715 retval = -EFAULT;
716 break;
717 }
718
719 case FBIO_WAITFORVSYNC:
720 {
721 u32 crt;
722 DPRINTK("FBIO_WAITFORVSYNC:\n");
723 if (get_user(crt, (u32 __user *) arg))
724 break;
725
726 retval = ps3fb_wait_for_vsync(crt);
727 break;
728 }
729
730 case PS3FB_IOCTL_SETMODE:
731 {
732 const struct fb_videomode *mode;
733 struct fb_var_screeninfo var;
734
735 if (copy_from_user(&val, argp, sizeof(val)))
736 break;
737
738 if (!(val & PS3AV_MODE_MASK)) {
739 u32 id = ps3av_get_auto_mode(0);
740 if (id > 0)
741 val = (val & ~PS3AV_MODE_MASK) | id;
742 }
743 DPRINTK("PS3FB_IOCTL_SETMODE:%x\n", val);
744 retval = -EINVAL;
745 old_mode = ps3fb_mode;
746 ps3fb_mode = val;
747 mode = ps3fb_default_mode();
748 if (mode) {
749 var = info->var;
750 fb_videomode_to_var(&var, mode);
751 acquire_console_sem();
752 info->flags |= FBINFO_MISC_USEREVENT;
753 /* Force, in case only special bits changed */
754 var.activate |= FB_ACTIVATE_FORCE;
755 retval = fb_set_var(info, &var);
756 info->flags &= ~FBINFO_MISC_USEREVENT;
757 release_console_sem();
758 }
759 if (retval)
760 ps3fb_mode = old_mode;
761 break;
762 }
763
764 case PS3FB_IOCTL_GETMODE:
765 val = ps3av_get_mode();
766 DPRINTK("PS3FB_IOCTL_GETMODE:%x\n", val);
767 if (!copy_to_user(argp, &val, sizeof(val)))
768 retval = 0;
769 break;
770
771 case PS3FB_IOCTL_SCREENINFO:
772 {
773 struct ps3fb_ioctl_res res;
774 int i = ps3fb.res_index;
775 DPRINTK("PS3FB_IOCTL_SCREENINFO:\n");
776 res.xres = ps3fb_res[i].xres;
777 res.yres = ps3fb_res[i].yres;
778 res.xoff = ps3fb_res[i].xoff;
779 res.yoff = ps3fb_res[i].yoff;
780 res.num_frames = ps3fb.num_frames;
781 if (!copy_to_user(argp, &res, sizeof(res)))
782 retval = 0;
783 break;
784 }
785
786 case PS3FB_IOCTL_ON:
787 DPRINTK("PS3FB_IOCTL_ON:\n");
788 atomic_inc(&ps3fb.ext_flip);
789 retval = 0;
790 break;
791
792 case PS3FB_IOCTL_OFF:
793 DPRINTK("PS3FB_IOCTL_OFF:\n");
794 atomic_dec_if_positive(&ps3fb.ext_flip);
795 retval = 0;
796 break;
797
798 case PS3FB_IOCTL_FSEL:
799 if (copy_from_user(&val, argp, sizeof(val)))
800 break;
801
802 DPRINTK("PS3FB_IOCTL_FSEL:%d\n", val);
803 retval = ps3fb_sync(val);
804 break;
805
806 default:
807 retval = -ENOIOCTLCMD;
808 break;
809 }
810 return retval;
811 }
812
813 static int ps3fbd(void *arg)
814 {
815 set_freezable();
816 while (!kthread_should_stop()) {
817 try_to_freeze();
818 set_current_state(TASK_INTERRUPTIBLE);
819 if (ps3fb.is_kicked) {
820 ps3fb.is_kicked = 0;
821 ps3fb_sync(0); /* single buffer */
822 }
823 schedule();
824 }
825 return 0;
826 }
827
828 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
829 {
830 u64 v1;
831 int status;
832 struct display_head *head = &ps3fb.dinfo->display_head[1];
833
834 status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
835 if (status) {
836 printk(KERN_ERR "%s: lv1_gpu_context_intr failed: %d\n",
837 __func__, status);
838 return IRQ_NONE;
839 }
840
841 if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
842 /* VSYNC */
843 ps3fb.vblank_count = head->vblank_count;
844 if (ps3fb.task && !ps3fb.is_blanked &&
845 !atomic_read(&ps3fb.ext_flip)) {
846 ps3fb.is_kicked = 1;
847 wake_up_process(ps3fb.task);
848 }
849 wake_up_interruptible(&ps3fb.wait_vsync);
850 }
851
852 return IRQ_HANDLED;
853 }
854
855
856 static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo,
857 struct ps3_system_bus_device *dev)
858 {
859 int error;
860
861 DPRINTK("version_driver:%x\n", dinfo->version_driver);
862 DPRINTK("irq outlet:%x\n", dinfo->irq.irq_outlet);
863 DPRINTK("version_gpu:%x memory_size:%x ch:%x core_freq:%d mem_freq:%d\n",
864 dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
865 dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
866
867 if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
868 printk(KERN_ERR "%s: version_driver err:%x\n", __func__,
869 dinfo->version_driver);
870 return -EINVAL;
871 }
872
873 error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
874 &ps3fb.irq_no);
875 if (error) {
876 printk(KERN_ERR "%s: ps3_alloc_irq failed %d\n", __func__,
877 error);
878 return error;
879 }
880
881 error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
882 DEVICE_NAME, dev);
883 if (error) {
884 printk(KERN_ERR "%s: request_irq failed %d\n", __func__,
885 error);
886 ps3_irq_plug_destroy(ps3fb.irq_no);
887 return error;
888 }
889
890 dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
891 (1 << GPU_INTR_STATUS_FLIP_1);
892 return 0;
893 }
894
895 static int ps3fb_xdr_settings(u64 xdr_lpar)
896 {
897 int status;
898
899 status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
900 xdr_lpar, ps3fb_videomemory.size, 0);
901 if (status) {
902 printk(KERN_ERR "%s: lv1_gpu_context_iomap failed: %d\n",
903 __func__, status);
904 return -ENXIO;
905 }
906 DPRINTK("video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
907 ps3fb_videomemory.address, ps3fb.xdr_ea, GPU_IOIF, xdr_lpar,
908 virt_to_abs(ps3fb.xdr_ea), ps3fb_videomemory.size);
909
910 status = lv1_gpu_context_attribute(ps3fb.context_handle,
911 L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
912 xdr_lpar, ps3fb_videomemory.size,
913 GPU_IOIF, 0);
914 if (status) {
915 printk(KERN_ERR
916 "%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
917 __func__, status);
918 return -ENXIO;
919 }
920 return 0;
921 }
922
923 static struct fb_ops ps3fb_ops = {
924 .fb_open = ps3fb_open,
925 .fb_release = ps3fb_release,
926 .fb_read = fb_sys_read,
927 .fb_write = fb_sys_write,
928 .fb_check_var = ps3fb_check_var,
929 .fb_set_par = ps3fb_set_par,
930 .fb_setcolreg = ps3fb_setcolreg,
931 .fb_fillrect = sys_fillrect,
932 .fb_copyarea = sys_copyarea,
933 .fb_imageblit = sys_imageblit,
934 .fb_mmap = ps3fb_mmap,
935 .fb_blank = ps3fb_blank,
936 .fb_ioctl = ps3fb_ioctl,
937 .fb_compat_ioctl = ps3fb_ioctl
938 };
939
940 static struct fb_fix_screeninfo ps3fb_fix __initdata = {
941 .id = DEVICE_NAME,
942 .type = FB_TYPE_PACKED_PIXELS,
943 .visual = FB_VISUAL_TRUECOLOR,
944 .accel = FB_ACCEL_NONE,
945 };
946
947 static int ps3fb_set_sync(void)
948 {
949 int status;
950
951 #ifdef HEAD_A
952 status = lv1_gpu_context_attribute(0x0,
953 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
954 0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
955 if (status) {
956 printk(KERN_ERR "%s: lv1_gpu_context_attribute DISPLAY_SYNC "
957 "failed: %d\n", __func__, status);
958 return -1;
959 }
960 #endif
961 #ifdef HEAD_B
962 status = lv1_gpu_context_attribute(0x0,
963 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
964 1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
965
966 if (status) {
967 printk(KERN_ERR "%s: lv1_gpu_context_attribute DISPLAY_MODE "
968 "failed: %d\n", __func__, status);
969 return -1;
970 }
971 #endif
972 return 0;
973 }
974
975 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
976 {
977 struct fb_info *info;
978 int retval = -ENOMEM;
979 u32 xres, yres;
980 u64 ddr_lpar = 0;
981 u64 lpar_dma_control = 0;
982 u64 lpar_driver_info = 0;
983 u64 lpar_reports = 0;
984 u64 lpar_reports_size = 0;
985 u64 xdr_lpar;
986 int status;
987 unsigned long offset;
988 struct task_struct *task;
989
990 status = ps3_open_hv_device(dev);
991 if (status) {
992 printk(KERN_ERR "%s: ps3_open_hv_device failed\n", __func__);
993 goto err;
994 }
995
996 if (!ps3fb_mode)
997 ps3fb_mode = ps3av_get_mode();
998 DPRINTK("ps3av_mode:%d\n", ps3fb_mode);
999
1000 if (ps3fb_mode > 0 &&
1001 !ps3av_video_mode2res(ps3fb_mode, &xres, &yres)) {
1002 ps3fb.res_index = ps3fb_get_res_table(xres, yres);
1003 DPRINTK("res_index:%d\n", ps3fb.res_index);
1004 } else
1005 ps3fb.res_index = GPU_RES_INDEX;
1006
1007 atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1008 atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1009 init_waitqueue_head(&ps3fb.wait_vsync);
1010 ps3fb.num_frames = 1;
1011
1012 ps3fb_set_sync();
1013
1014 /* get gpu context handle */
1015 status = lv1_gpu_memory_allocate(DDR_SIZE, 0, 0, 0, 0,
1016 &ps3fb.memory_handle, &ddr_lpar);
1017 if (status) {
1018 printk(KERN_ERR "%s: lv1_gpu_memory_allocate failed: %d\n",
1019 __func__, status);
1020 goto err;
1021 }
1022 DPRINTK("ddr:lpar:0x%lx\n", ddr_lpar);
1023
1024 status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1025 &ps3fb.context_handle,
1026 &lpar_dma_control, &lpar_driver_info,
1027 &lpar_reports, &lpar_reports_size);
1028 if (status) {
1029 printk(KERN_ERR "%s: lv1_gpu_context_attribute failed: %d\n",
1030 __func__, status);
1031 goto err_gpu_memory_free;
1032 }
1033
1034 /* vsync interrupt */
1035 ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
1036 if (!ps3fb.dinfo) {
1037 printk(KERN_ERR "%s: ioremap failed\n", __func__);
1038 goto err_gpu_context_free;
1039 }
1040
1041 retval = ps3fb_vsync_settings(ps3fb.dinfo, dev);
1042 if (retval)
1043 goto err_iounmap_dinfo;
1044
1045 /* xdr frame buffer */
1046 ps3fb.xdr_ea = ps3fb_videomemory.address;
1047 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb.xdr_ea));
1048 retval = ps3fb_xdr_settings(xdr_lpar);
1049 if (retval)
1050 goto err_free_irq;
1051
1052 /*
1053 * ps3fb must clear memory to prevent kernel info
1054 * leakage into userspace
1055 */
1056 memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
1057 info = framebuffer_alloc(sizeof(u32) * 16, &dev->core);
1058 if (!info)
1059 goto err_free_irq;
1060
1061 offset = FB_OFF(ps3fb.res_index) + VP_OFF(ps3fb.res_index);
1062 info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
1063 info->fbops = &ps3fb_ops;
1064
1065 info->fix = ps3fb_fix;
1066 info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
1067 info->fix.smem_len = ps3fb_videomemory.size - offset;
1068 info->pseudo_palette = info->par;
1069 info->par = NULL;
1070 info->flags = FBINFO_FLAG_DEFAULT;
1071
1072 retval = fb_alloc_cmap(&info->cmap, 256, 0);
1073 if (retval < 0)
1074 goto err_framebuffer_release;
1075
1076 if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1077 ARRAY_SIZE(ps3fb_modedb), ps3fb_default_mode(), 32)) {
1078 retval = -EINVAL;
1079 goto err_fb_dealloc;
1080 }
1081
1082 fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1083 &info->modelist);
1084
1085 retval = register_framebuffer(info);
1086 if (retval < 0)
1087 goto err_fb_dealloc;
1088
1089 dev->core.driver_data = info;
1090
1091 printk(KERN_INFO
1092 "fb%d: PS3 frame buffer device, using %ld KiB of video memory\n",
1093 info->node, ps3fb_videomemory.size >> 10);
1094
1095 task = kthread_run(ps3fbd, info, DEVICE_NAME);
1096 if (IS_ERR(task)) {
1097 retval = PTR_ERR(task);
1098 goto err_unregister_framebuffer;
1099 }
1100
1101 ps3fb.task = task;
1102 ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb);
1103
1104 return 0;
1105
1106 err_unregister_framebuffer:
1107 unregister_framebuffer(info);
1108 err_fb_dealloc:
1109 fb_dealloc_cmap(&info->cmap);
1110 err_framebuffer_release:
1111 framebuffer_release(info);
1112 err_free_irq:
1113 free_irq(ps3fb.irq_no, dev);
1114 ps3_irq_plug_destroy(ps3fb.irq_no);
1115 err_iounmap_dinfo:
1116 iounmap((u8 __iomem *)ps3fb.dinfo);
1117 err_gpu_context_free:
1118 lv1_gpu_context_free(ps3fb.context_handle);
1119 err_gpu_memory_free:
1120 lv1_gpu_memory_free(ps3fb.memory_handle);
1121 err:
1122 return retval;
1123 }
1124
1125 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1126 {
1127 int status;
1128 struct fb_info *info = dev->core.driver_data;
1129
1130 DPRINTK(" -> %s:%d\n", __func__, __LINE__);
1131
1132 ps3fb_flip_ctl(0, &ps3fb); /* flip off */
1133 ps3fb.dinfo->irq.mask = 0;
1134
1135 if (info) {
1136 unregister_framebuffer(info);
1137 fb_dealloc_cmap(&info->cmap);
1138 framebuffer_release(info);
1139 }
1140
1141 ps3av_register_flip_ctl(NULL, NULL);
1142 if (ps3fb.task) {
1143 struct task_struct *task = ps3fb.task;
1144 ps3fb.task = NULL;
1145 kthread_stop(task);
1146 }
1147 if (ps3fb.irq_no) {
1148 free_irq(ps3fb.irq_no, dev);
1149 ps3_irq_plug_destroy(ps3fb.irq_no);
1150 }
1151 iounmap((u8 __iomem *)ps3fb.dinfo);
1152
1153 status = lv1_gpu_context_free(ps3fb.context_handle);
1154 if (status)
1155 DPRINTK("lv1_gpu_context_free failed: %d\n", status);
1156
1157 status = lv1_gpu_memory_free(ps3fb.memory_handle);
1158 if (status)
1159 DPRINTK("lv1_gpu_memory_free failed: %d\n", status);
1160
1161 ps3_close_hv_device(dev);
1162 DPRINTK(" <- %s:%d\n", __func__, __LINE__);
1163
1164 return 0;
1165 }
1166
1167 static struct ps3_system_bus_driver ps3fb_driver = {
1168 .match_id = PS3_MATCH_ID_GRAPHICS,
1169 .core.name = DEVICE_NAME,
1170 .core.owner = THIS_MODULE,
1171 .probe = ps3fb_probe,
1172 .remove = ps3fb_shutdown,
1173 .shutdown = ps3fb_shutdown,
1174 };
1175
1176 static int __init ps3fb_setup(void)
1177 {
1178 char *options;
1179
1180 #ifdef MODULE
1181 return 0;
1182 #endif
1183
1184 if (fb_get_options(DEVICE_NAME, &options))
1185 return -ENXIO;
1186
1187 if (!options || !*options)
1188 return 0;
1189
1190 while (1) {
1191 char *this_opt = strsep(&options, ",");
1192
1193 if (!this_opt)
1194 break;
1195 if (!*this_opt)
1196 continue;
1197 if (!strncmp(this_opt, "mode:", 5))
1198 ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1199 else
1200 mode_option = this_opt;
1201 }
1202 return 0;
1203 }
1204
1205 static int __init ps3fb_init(void)
1206 {
1207 if (!ps3fb_videomemory.address || ps3fb_setup())
1208 return -ENXIO;
1209
1210 return ps3_system_bus_driver_register(&ps3fb_driver);
1211 }
1212
1213 static void __exit ps3fb_exit(void)
1214 {
1215 DPRINTK(" -> %s:%d\n", __func__, __LINE__);
1216 ps3_system_bus_driver_unregister(&ps3fb_driver);
1217 DPRINTK(" <- %s:%d\n", __func__, __LINE__);
1218 }
1219
1220 module_init(ps3fb_init);
1221 module_exit(ps3fb_exit);
1222
1223 MODULE_LICENSE("GPL");
1224 MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1225 MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1226 MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);
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