?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
ps3fb: add virtual screen and panning support
[linux-2.6/kvm.git] / drivers / video / ps3fb.c
blob64af173d18f91437e5e958b219de667c7a1dea6b
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/interrupt.h>
26 #include <linux/console.h>
27 #include <linux/ioctl.h>
28 #include <linux/kthread.h>
29 #include <linux/freezer.h>
30 #include <linux/uaccess.h>
31 #include <linux/fb.h>
32 #include <linux/init.h>
33
34 #include <asm/abs_addr.h>
35 #include <asm/lv1call.h>
36 #include <asm/ps3av.h>
37 #include <asm/ps3fb.h>
38 #include <asm/ps3.h>
39
40
41 #define DEVICE_NAME "ps3fb"
42
43 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC 0x101
44 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP 0x102
45 #define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP 0x600
46 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
47 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC 0x602
48
49 #define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION (1ULL << 32)
50
51 #define L1GPU_DISPLAY_SYNC_HSYNC 1
52 #define L1GPU_DISPLAY_SYNC_VSYNC 2
53
54 #define DDR_SIZE (0) /* used no ddr */
55 #define GPU_CMD_BUF_SIZE (64 * 1024)
56 #define GPU_IOIF (0x0d000000UL)
57 #define GPU_ALIGN_UP(x) _ALIGN_UP((x), 64)
58
59 #define PS3FB_FULL_MODE_BIT 0x80
60
61 #define GPU_INTR_STATUS_VSYNC_0 0 /* vsync on head A */
62 #define GPU_INTR_STATUS_VSYNC_1 1 /* vsync on head B */
63 #define GPU_INTR_STATUS_FLIP_0 3 /* flip head A */
64 #define GPU_INTR_STATUS_FLIP_1 4 /* flip head B */
65 #define GPU_INTR_STATUS_QUEUE_0 5 /* queue head A */
66 #define GPU_INTR_STATUS_QUEUE_1 6 /* queue head B */
67
68 #define GPU_DRIVER_INFO_VERSION 0x211
69
70 /* gpu internals */
71 struct display_head {
72 u64 be_time_stamp;
73 u32 status;
74 u32 offset;
75 u32 res1;
76 u32 res2;
77 u32 field;
78 u32 reserved1;
79
80 u64 res3;
81 u32 raster;
82
83 u64 vblank_count;
84 u32 field_vsync;
85 u32 reserved2;
86 };
87
88 struct gpu_irq {
89 u32 irq_outlet;
90 u32 status;
91 u32 mask;
92 u32 video_cause;
93 u32 graph_cause;
94 u32 user_cause;
95
96 u32 res1;
97 u64 res2;
98
99 u32 reserved[4];
100 };
101
102 struct gpu_driver_info {
103 u32 version_driver;
104 u32 version_gpu;
105 u32 memory_size;
106 u32 hardware_channel;
107
108 u32 nvcore_frequency;
109 u32 memory_frequency;
110
111 u32 reserved[1063];
112 struct display_head display_head[8];
113 struct gpu_irq irq;
114 };
115
116 struct ps3fb_priv {
117 unsigned int irq_no;
118
119 u64 context_handle, memory_handle;
120 void *xdr_ea;
121 size_t xdr_size;
122 struct gpu_driver_info *dinfo;
123
124 u64 vblank_count; /* frame count */
125 wait_queue_head_t wait_vsync;
126
127 atomic_t ext_flip; /* on/off flip with vsync */
128 atomic_t f_count; /* fb_open count */
129 int is_blanked;
130 int is_kicked;
131 struct task_struct *task;
132 };
133 static struct ps3fb_priv ps3fb;
134
135 struct ps3fb_par {
136 u32 pseudo_palette[16];
137 int mode_id, new_mode_id;
138 int res_index;
139 unsigned int num_frames; /* num of frame buffers */
140 unsigned int width;
141 unsigned int height;
142 unsigned long full_offset; /* start of fullscreen DDR fb */
143 unsigned long fb_offset; /* start of actual DDR fb */
144 unsigned long pan_offset;
145 };
146
147 struct ps3fb_res_table {
148 u32 xres;
149 u32 yres;
150 u32 xoff;
151 u32 yoff;
152 u32 type;
153 };
154 #define PS3FB_RES_FULL 1
155 static const struct ps3fb_res_table ps3fb_res[] = {
156 /* res_x,y margin_x,y full */
157 { 720, 480, 72, 48 , 0},
158 { 720, 576, 72, 58 , 0},
159 { 1280, 720, 78, 38 , 0},
160 { 1920, 1080, 116, 58 , 0},
161 /* full mode */
162 { 720, 480, 0, 0 , PS3FB_RES_FULL},
163 { 720, 576, 0, 0 , PS3FB_RES_FULL},
164 { 1280, 720, 0, 0 , PS3FB_RES_FULL},
165 { 1920, 1080, 0, 0 , PS3FB_RES_FULL},
166 /* vesa: normally full mode */
167 { 1280, 768, 0, 0 , 0},
168 { 1280, 1024, 0, 0 , 0},
169 { 1920, 1200, 0, 0 , 0},
170 { 0, 0, 0, 0 , 0} };
171
172 /* default resolution */
173 #define GPU_RES_INDEX 0 /* 720 x 480 */
174
175 static const struct fb_videomode ps3fb_modedb[] = {
176 /* 60 Hz broadcast modes (modes "1" to "5") */
177 {
178 /* 480i */
179 "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
180 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
181 }, {
182 /* 480p */
183 "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
184 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
185 }, {
186 /* 720p */
187 "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
188 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
189 }, {
190 /* 1080i */
191 "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
192 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
193 }, {
194 /* 1080p */
195 "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
196 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
197 },
198
199 /* 50 Hz broadcast modes (modes "6" to "10") */
200 {
201 /* 576i */
202 "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
203 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
204 }, {
205 /* 576p */
206 "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
207 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
208 }, {
209 /* 720p */
210 "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
211 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
212 }, {
213 /* 1080 */
214 "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
215 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
216 }, {
217 /* 1080p */
218 "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
219 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
220 },
221
222 /* VESA modes (modes "11" to "13") */
223 {
224 /* WXGA */
225 "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
226 0, FB_VMODE_NONINTERLACED,
227 FB_MODE_IS_VESA
228 }, {
229 /* SXGA */
230 "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
231 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
232 FB_MODE_IS_VESA
233 }, {
234 /* WUXGA */
235 "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
236 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
237 FB_MODE_IS_VESA
238 },
239
240 /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
241 {
242 /* 480if */
243 "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
244 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
245 }, {
246 /* 480pf */
247 "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
248 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
249 }, {
250 /* 720pf */
251 "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
252 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
253 }, {
254 /* 1080if */
255 "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
256 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
257 }, {
258 /* 1080pf */
259 "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
260 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
261 },
262
263 /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
264 {
265 /* 576if */
266 "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
267 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
268 }, {
269 /* 576pf */
270 "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
271 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
272 }, {
273 /* 720pf */
274 "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
275 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
276 }, {
277 /* 1080if */
278 "1080f", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
279 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
280 }, {
281 /* 1080pf */
282 "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
283 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
284 }
285 };
286
287
288 #define HEAD_A
289 #define HEAD_B
290
291 #define X_OFF(i) (ps3fb_res[i].xoff) /* left/right margin (pixel) */
292 #define Y_OFF(i) (ps3fb_res[i].yoff) /* top/bottom margin (pixel) */
293 #define WIDTH(i) (ps3fb_res[i].xres) /* width of FB */
294 #define HEIGHT(i) (ps3fb_res[i].yres) /* height of FB */
295 #define BPP 4 /* number of bytes per pixel */
296
297 /* Start of the virtual frame buffer (relative to fullscreen ) */
298 #define VP_OFF(i) ((WIDTH(i) * Y_OFF(i) + X_OFF(i)) * BPP)
299
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, int mode)
307 {
308 int full_mode;
309 unsigned int i;
310 u32 x, y, f;
311
312 full_mode = (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 pr_debug("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 pr_debug("ps3fb_find_mode: mode %u\n", mode);
361 return mode;
362 }
363
364 pr_debug("ps3fb_find_mode: mode not found\n");
365 return 0;
366 }
367
368 static const struct fb_videomode *ps3fb_default_mode(int id)
369 {
370 u32 mode = id & PS3AV_MODE_MASK;
371 u32 flags;
372
373 if (mode < 1 || mode > 13)
374 return NULL;
375
376 flags = id & ~PS3AV_MODE_MASK;
377
378 if (mode <= 10 && flags & PS3FB_FULL_MODE_BIT) {
379 /* Full broadcast mode */
380 return &ps3fb_modedb[mode + 12];
381 }
382
383 return &ps3fb_modedb[mode - 1];
384 }
385
386 static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
387 u64 dst_offset, u64 src_offset, u32 width,
388 u32 height, u64 line_length)
389 {
390 int status;
391
392 status = lv1_gpu_context_attribute(ps3fb.context_handle,
393 L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
394 dst_offset, GPU_IOIF + src_offset,
395 L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
396 (width << 16) | height,
397 line_length);
398 if (status)
399 dev_err(dev,
400 "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
401 __func__, status);
402 #ifdef HEAD_A
403 status = lv1_gpu_context_attribute(ps3fb.context_handle,
404 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
405 0, frame_offset, 0, 0);
406 if (status)
407 dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
408 __func__, status);
409 #endif
410 #ifdef HEAD_B
411 status = lv1_gpu_context_attribute(ps3fb.context_handle,
412 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
413 1, frame_offset, 0, 0);
414 if (status)
415 dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
416 __func__, status);
417 #endif
418 }
419
420 static int ps3fb_sync(struct fb_info *info, u32 frame)
421 {
422 struct ps3fb_par *par = info->par;
423 int i, error = 0;
424 u32 xres, yres;
425 u64 line_length, base;
426
427 acquire_console_sem();
428
429 if (frame > par->num_frames - 1) {
430 dev_dbg(info->device, "%s: invalid frame number (%u)\n",
431 __func__, frame);
432 error = -EINVAL;
433 goto out;
434 }
435
436 i = par->res_index;
437 xres = ps3fb_res[i].xres;
438 yres = ps3fb_res[i].yres;
439
440 line_length = xres * BPP;
441 base = frame * yres * line_length;
442
443 ps3fb_sync_image(info->device, base + par->full_offset,
444 base + par->fb_offset, base + par->pan_offset,
445 par->width, par->height, line_length);
446
447 out:
448 release_console_sem();
449 return error;
450 }
451
452 static int ps3fb_open(struct fb_info *info, int user)
453 {
454 atomic_inc(&ps3fb.f_count);
455 return 0;
456 }
457
458 static int ps3fb_release(struct fb_info *info, int user)
459 {
460 if (atomic_dec_and_test(&ps3fb.f_count)) {
461 if (atomic_read(&ps3fb.ext_flip)) {
462 atomic_set(&ps3fb.ext_flip, 0);
463 ps3fb_sync(info, 0); /* single buffer */
464 }
465 }
466 return 0;
467 }
468
469 /*
470 * Setting the video mode has been split into two parts.
471 * First part, xxxfb_check_var, must not write anything
472 * to hardware, it should only verify and adjust var.
473 * This means it doesn't alter par but it does use hardware
474 * data from it to check this var.
475 */
476
477 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
478 {
479 u32 line_length;
480 int mode;
481
482 dev_dbg(info->device, "var->xres:%u info->var.xres:%u\n", var->xres,
483 info->var.xres);
484 dev_dbg(info->device, "var->yres:%u info->var.yres:%u\n", var->yres,
485 info->var.yres);
486
487 /* FIXME For now we do exact matches only */
488 mode = ps3fb_find_mode(var, &line_length);
489 if (!mode)
490 return -EINVAL;
491
492 /* Virtual screen */
493 if (var->xres_virtual < var->xres)
494 var->xres_virtual = var->xres;
495 if (var->yres_virtual < var->yres)
496 var->yres_virtual = var->yres;
497
498 if (var->xres_virtual > line_length / BPP) {
499 dev_dbg(info->device,
500 "Horizontal virtual screen size too large\n");
501 return -EINVAL;
502 }
503
504 if (var->xoffset + var->xres > var->xres_virtual ||
505 var->yoffset + var->yres > var->yres_virtual) {
506 dev_dbg(info->device, "panning out-of-range\n");
507 return -EINVAL;
508 }
509
510 /* We support ARGB8888 only */
511 if (var->bits_per_pixel > 32 || var->grayscale ||
512 var->red.offset > 16 || var->green.offset > 8 ||
513 var->blue.offset > 0 || var->transp.offset > 24 ||
514 var->red.length > 8 || var->green.length > 8 ||
515 var->blue.length > 8 || var->transp.length > 8 ||
516 var->red.msb_right || var->green.msb_right ||
517 var->blue.msb_right || var->transp.msb_right || var->nonstd) {
518 dev_dbg(info->device, "We support ARGB8888 only\n");
519 return -EINVAL;
520 }
521
522 var->bits_per_pixel = 32;
523 var->red.offset = 16;
524 var->green.offset = 8;
525 var->blue.offset = 0;
526 var->transp.offset = 24;
527 var->red.length = 8;
528 var->green.length = 8;
529 var->blue.length = 8;
530 var->transp.length = 8;
531 var->red.msb_right = 0;
532 var->green.msb_right = 0;
533 var->blue.msb_right = 0;
534 var->transp.msb_right = 0;
535
536 /* Rotation is not supported */
537 if (var->rotate) {
538 dev_dbg(info->device, "Rotation is not supported\n");
539 return -EINVAL;
540 }
541
542 /* Memory limit */
543 if (var->yres_virtual * line_length > ps3fb.xdr_size) {
544 dev_dbg(info->device, "Not enough memory\n");
545 return -ENOMEM;
546 }
547
548 var->height = -1;
549 var->width = -1;
550
551 return 0;
552 }
553
554 /*
555 * This routine actually sets the video mode.
556 */
557
558 static int ps3fb_set_par(struct fb_info *info)
559 {
560 struct ps3fb_par *par = info->par;
561 unsigned int mode, line_length, lines, maxlines;
562 int i;
563 unsigned long offset, dst;
564
565 dev_dbg(info->device, "xres:%d xv:%d yres:%d yv:%d clock:%d\n",
566 info->var.xres, info->var.xres_virtual,
567 info->var.yres, info->var.yres_virtual, info->var.pixclock);
568
569 mode = ps3fb_find_mode(&info->var, &line_length);
570 if (!mode)
571 return -EINVAL;
572
573 i = ps3fb_get_res_table(info->var.xres, info->var.yres, mode);
574 par->res_index = i;
575
576 info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
577 info->fix.smem_len = ps3fb.xdr_size;
578 info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
579 info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
580 info->fix.line_length = line_length;
581
582 info->screen_base = (char __iomem *)ps3fb.xdr_ea;
583
584 par->num_frames = info->fix.smem_len/
585 (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP);
586
587 /* Keep the special bits we cannot set using fb_var_screeninfo */
588 par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
589
590 par->width = info->var.xres;
591 par->height = info->var.yres;
592 offset = VP_OFF(i);
593 par->fb_offset = GPU_ALIGN_UP(offset);
594 par->full_offset = par->fb_offset - offset;
595 par->pan_offset = info->var.yoffset * line_length +
596 info->var.xoffset * BPP;
597
598 if (par->new_mode_id != par->mode_id) {
599 if (ps3av_set_video_mode(par->new_mode_id)) {
600 par->new_mode_id = par->mode_id;
601 return -EINVAL;
602 }
603 par->mode_id = par->new_mode_id;
604 }
605
606 /* Clear XDR frame buffer memory */
607 memset(ps3fb.xdr_ea, 0, ps3fb.xdr_size);
608
609 /* Clear DDR frame buffer memory */
610 lines = ps3fb_res[i].yres * par->num_frames;
611 if (par->full_offset)
612 lines++;
613 maxlines = ps3fb.xdr_size / line_length;
614 for (dst = 0; lines; dst += maxlines * line_length) {
615 unsigned int l = min(lines, maxlines);
616 ps3fb_sync_image(info->device, 0, dst, 0, ps3fb_res[i].xres, l,
617 line_length);
618 lines -= l;
619 }
620
621 return 0;
622 }
623
624 /*
625 * Set a single color register. The values supplied are already
626 * rounded down to the hardware's capabilities (according to the
627 * entries in the var structure). Return != 0 for invalid regno.
628 */
629
630 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
631 unsigned int green, unsigned int blue,
632 unsigned int transp, struct fb_info *info)
633 {
634 if (regno >= 16)
635 return 1;
636
637 red >>= 8;
638 green >>= 8;
639 blue >>= 8;
640 transp >>= 8;
641
642 ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
643 green << 8 | blue;
644 return 0;
645 }
646
647 static int ps3fb_pan_display(struct fb_var_screeninfo *var,
648 struct fb_info *info)
649 {
650 struct ps3fb_par *par = info->par;
651
652 par->pan_offset = var->yoffset * info->fix.line_length +
653 var->xoffset * BPP;
654 return 0;
655 }
656
657 /*
658 * As we have a virtual frame buffer, we need our own mmap function
659 */
660
661 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
662 {
663 unsigned long size, offset;
664
665 size = vma->vm_end - vma->vm_start;
666 offset = vma->vm_pgoff << PAGE_SHIFT;
667 if (offset + size > info->fix.smem_len)
668 return -EINVAL;
669
670 offset += info->fix.smem_start;
671 if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
672 size, vma->vm_page_prot))
673 return -EAGAIN;
674
675 dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
676 offset, vma->vm_start);
677 return 0;
678 }
679
680 /*
681 * Blank the display
682 */
683
684 static int ps3fb_blank(int blank, struct fb_info *info)
685 {
686 int retval;
687
688 dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
689 switch (blank) {
690 case FB_BLANK_POWERDOWN:
691 case FB_BLANK_HSYNC_SUSPEND:
692 case FB_BLANK_VSYNC_SUSPEND:
693 case FB_BLANK_NORMAL:
694 retval = ps3av_video_mute(1); /* mute on */
695 if (!retval)
696 ps3fb.is_blanked = 1;
697 break;
698
699 default: /* unblank */
700 retval = ps3av_video_mute(0); /* mute off */
701 if (!retval)
702 ps3fb.is_blanked = 0;
703 break;
704 }
705 return retval;
706 }
707
708 static int ps3fb_get_vblank(struct fb_vblank *vblank)
709 {
710 memset(vblank, 0, sizeof(&vblank));
711 vblank->flags = FB_VBLANK_HAVE_VSYNC;
712 return 0;
713 }
714
715 static int ps3fb_wait_for_vsync(u32 crtc)
716 {
717 int ret;
718 u64 count;
719
720 count = ps3fb.vblank_count;
721 ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
722 count != ps3fb.vblank_count,
723 HZ / 10);
724 if (!ret)
725 return -ETIMEDOUT;
726
727 return 0;
728 }
729
730 static void ps3fb_flip_ctl(int on, void *data)
731 {
732 struct ps3fb_priv *priv = data;
733 if (on)
734 atomic_dec_if_positive(&priv->ext_flip);
735 else
736 atomic_inc(&priv->ext_flip);
737 }
738
739
740 /*
741 * ioctl
742 */
743
744 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
745 unsigned long arg)
746 {
747 void __user *argp = (void __user *)arg;
748 u32 val;
749 int retval = -EFAULT;
750
751 switch (cmd) {
752 case FBIOGET_VBLANK:
753 {
754 struct fb_vblank vblank;
755 dev_dbg(info->device, "FBIOGET_VBLANK:\n");
756 retval = ps3fb_get_vblank(&vblank);
757 if (retval)
758 break;
759
760 if (copy_to_user(argp, &vblank, sizeof(vblank)))
761 retval = -EFAULT;
762 break;
763 }
764
765 case FBIO_WAITFORVSYNC:
766 {
767 u32 crt;
768 dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
769 if (get_user(crt, (u32 __user *) arg))
770 break;
771
772 retval = ps3fb_wait_for_vsync(crt);
773 break;
774 }
775
776 case PS3FB_IOCTL_SETMODE:
777 {
778 struct ps3fb_par *par = info->par;
779 const struct fb_videomode *mode;
780 struct fb_var_screeninfo var;
781
782 if (copy_from_user(&val, argp, sizeof(val)))
783 break;
784
785 if (!(val & PS3AV_MODE_MASK)) {
786 u32 id = ps3av_get_auto_mode();
787 if (id > 0)
788 val = (val & ~PS3AV_MODE_MASK) | id;
789 }
790 dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
791 retval = -EINVAL;
792 mode = ps3fb_default_mode(val);
793 if (mode) {
794 var = info->var;
795 fb_videomode_to_var(&var, mode);
796 acquire_console_sem();
797 info->flags |= FBINFO_MISC_USEREVENT;
798 /* Force, in case only special bits changed */
799 var.activate |= FB_ACTIVATE_FORCE;
800 par->new_mode_id = val;
801 retval = fb_set_var(info, &var);
802 info->flags &= ~FBINFO_MISC_USEREVENT;
803 release_console_sem();
804 }
805 break;
806 }
807
808 case PS3FB_IOCTL_GETMODE:
809 val = ps3av_get_mode();
810 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
811 if (!copy_to_user(argp, &val, sizeof(val)))
812 retval = 0;
813 break;
814
815 case PS3FB_IOCTL_SCREENINFO:
816 {
817 struct ps3fb_par *par = info->par;
818 struct ps3fb_ioctl_res res;
819 int i = par->res_index;
820 dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
821 res.xres = ps3fb_res[i].xres;
822 res.yres = ps3fb_res[i].yres;
823 res.xoff = ps3fb_res[i].xoff;
824 res.yoff = ps3fb_res[i].yoff;
825 res.num_frames = par->num_frames;
826 if (!copy_to_user(argp, &res, sizeof(res)))
827 retval = 0;
828 break;
829 }
830
831 case PS3FB_IOCTL_ON:
832 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
833 atomic_inc(&ps3fb.ext_flip);
834 retval = 0;
835 break;
836
837 case PS3FB_IOCTL_OFF:
838 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
839 atomic_dec_if_positive(&ps3fb.ext_flip);
840 retval = 0;
841 break;
842
843 case PS3FB_IOCTL_FSEL:
844 if (copy_from_user(&val, argp, sizeof(val)))
845 break;
846
847 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
848 retval = ps3fb_sync(info, val);
849 break;
850
851 default:
852 retval = -ENOIOCTLCMD;
853 break;
854 }
855 return retval;
856 }
857
858 static int ps3fbd(void *arg)
859 {
860 struct fb_info *info = arg;
861
862 set_freezable();
863 while (!kthread_should_stop()) {
864 try_to_freeze();
865 set_current_state(TASK_INTERRUPTIBLE);
866 if (ps3fb.is_kicked) {
867 ps3fb.is_kicked = 0;
868 ps3fb_sync(info, 0); /* single buffer */
869 }
870 schedule();
871 }
872 return 0;
873 }
874
875 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
876 {
877 struct device *dev = ptr;
878 u64 v1;
879 int status;
880 struct display_head *head = &ps3fb.dinfo->display_head[1];
881
882 status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
883 if (status) {
884 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
885 status);
886 return IRQ_NONE;
887 }
888
889 if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
890 /* VSYNC */
891 ps3fb.vblank_count = head->vblank_count;
892 if (ps3fb.task && !ps3fb.is_blanked &&
893 !atomic_read(&ps3fb.ext_flip)) {
894 ps3fb.is_kicked = 1;
895 wake_up_process(ps3fb.task);
896 }
897 wake_up_interruptible(&ps3fb.wait_vsync);
898 }
899
900 return IRQ_HANDLED;
901 }
902
903
904 static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo,
905 struct device *dev)
906 {
907 int error;
908
909 dev_dbg(dev, "version_driver:%x\n", dinfo->version_driver);
910 dev_dbg(dev, "irq outlet:%x\n", dinfo->irq.irq_outlet);
911 dev_dbg(dev,
912 "version_gpu: %x memory_size: %x ch: %x core_freq: %d "
913 "mem_freq:%d\n",
914 dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
915 dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
916
917 if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
918 dev_err(dev, "%s: version_driver err:%x\n", __func__,
919 dinfo->version_driver);
920 return -EINVAL;
921 }
922
923 error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
924 &ps3fb.irq_no);
925 if (error) {
926 dev_err(dev, "%s: ps3_alloc_irq failed %d\n", __func__, error);
927 return error;
928 }
929
930 error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
931 DEVICE_NAME, dev);
932 if (error) {
933 dev_err(dev, "%s: request_irq failed %d\n", __func__, error);
934 ps3_irq_plug_destroy(ps3fb.irq_no);
935 return error;
936 }
937
938 dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
939 (1 << GPU_INTR_STATUS_FLIP_1);
940 return 0;
941 }
942
943 static int ps3fb_xdr_settings(u64 xdr_lpar, struct device *dev)
944 {
945 int status;
946
947 status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
948 xdr_lpar, ps3fb_videomemory.size, 0);
949 if (status) {
950 dev_err(dev, "%s: lv1_gpu_context_iomap failed: %d\n",
951 __func__, status);
952 return -ENXIO;
953 }
954 dev_dbg(dev,
955 "video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
956 ps3fb_videomemory.address, ps3fb.xdr_ea, GPU_IOIF, xdr_lpar,
957 virt_to_abs(ps3fb.xdr_ea), ps3fb_videomemory.size);
958
959 status = lv1_gpu_context_attribute(ps3fb.context_handle,
960 L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
961 xdr_lpar + ps3fb.xdr_size,
962 GPU_CMD_BUF_SIZE,
963 GPU_IOIF + ps3fb.xdr_size, 0);
964 if (status) {
965 dev_err(dev,
966 "%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
967 __func__, status);
968 return -ENXIO;
969 }
970 return 0;
971 }
972
973 static struct fb_ops ps3fb_ops = {
974 .fb_open = ps3fb_open,
975 .fb_release = ps3fb_release,
976 .fb_read = fb_sys_read,
977 .fb_write = fb_sys_write,
978 .fb_check_var = ps3fb_check_var,
979 .fb_set_par = ps3fb_set_par,
980 .fb_setcolreg = ps3fb_setcolreg,
981 .fb_pan_display = ps3fb_pan_display,
982 .fb_fillrect = sys_fillrect,
983 .fb_copyarea = sys_copyarea,
984 .fb_imageblit = sys_imageblit,
985 .fb_mmap = ps3fb_mmap,
986 .fb_blank = ps3fb_blank,
987 .fb_ioctl = ps3fb_ioctl,
988 .fb_compat_ioctl = ps3fb_ioctl
989 };
990
991 static struct fb_fix_screeninfo ps3fb_fix __initdata = {
992 .id = DEVICE_NAME,
993 .type = FB_TYPE_PACKED_PIXELS,
994 .visual = FB_VISUAL_TRUECOLOR,
995 .accel = FB_ACCEL_NONE,
996 };
997
998 static int ps3fb_set_sync(struct device *dev)
999 {
1000 int status;
1001
1002 #ifdef HEAD_A
1003 status = lv1_gpu_context_attribute(0x0,
1004 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
1005 0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
1006 if (status) {
1007 dev_err(dev,
1008 "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
1009 "%d\n",
1010 __func__, status);
1011 return -1;
1012 }
1013 #endif
1014 #ifdef HEAD_B
1015 status = lv1_gpu_context_attribute(0x0,
1016 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
1017 1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
1018
1019 if (status) {
1020 dev_err(dev,
1021 "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
1022 "%d\n",
1023 __func__, status);
1024 return -1;
1025 }
1026 #endif
1027 return 0;
1028 }
1029
1030 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
1031 {
1032 struct fb_info *info;
1033 struct ps3fb_par *par;
1034 int retval = -ENOMEM;
1035 u32 xres, yres;
1036 u64 ddr_lpar = 0;
1037 u64 lpar_dma_control = 0;
1038 u64 lpar_driver_info = 0;
1039 u64 lpar_reports = 0;
1040 u64 lpar_reports_size = 0;
1041 u64 xdr_lpar;
1042 int status, res_index;
1043 struct task_struct *task;
1044
1045 status = ps3_open_hv_device(dev);
1046 if (status) {
1047 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
1048 __func__);
1049 goto err;
1050 }
1051
1052 if (!ps3fb_mode)
1053 ps3fb_mode = ps3av_get_mode();
1054 dev_dbg(&dev->core, "ps3av_mode:%d\n", ps3fb_mode);
1055
1056 if (ps3fb_mode > 0 &&
1057 !ps3av_video_mode2res(ps3fb_mode, &xres, &yres)) {
1058 res_index = ps3fb_get_res_table(xres, yres, ps3fb_mode);
1059 dev_dbg(&dev->core, "res_index:%d\n", res_index);
1060 } else
1061 res_index = GPU_RES_INDEX;
1062
1063 atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1064 atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1065 init_waitqueue_head(&ps3fb.wait_vsync);
1066
1067 ps3fb_set_sync(&dev->core);
1068
1069 /* get gpu context handle */
1070 status = lv1_gpu_memory_allocate(DDR_SIZE, 0, 0, 0, 0,
1071 &ps3fb.memory_handle, &ddr_lpar);
1072 if (status) {
1073 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1074 __func__, status);
1075 goto err;
1076 }
1077 dev_dbg(&dev->core, "ddr:lpar:0x%lx\n", ddr_lpar);
1078
1079 status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1080 &ps3fb.context_handle,
1081 &lpar_dma_control, &lpar_driver_info,
1082 &lpar_reports, &lpar_reports_size);
1083 if (status) {
1084 dev_err(&dev->core,
1085 "%s: lv1_gpu_context_attribute failed: %d\n", __func__,
1086 status);
1087 goto err_gpu_memory_free;
1088 }
1089
1090 /* vsync interrupt */
1091 ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
1092 if (!ps3fb.dinfo) {
1093 dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1094 goto err_gpu_context_free;
1095 }
1096
1097 retval = ps3fb_vsync_settings(ps3fb.dinfo, &dev->core);
1098 if (retval)
1099 goto err_iounmap_dinfo;
1100
1101 /* XDR frame buffer */
1102 ps3fb.xdr_ea = ps3fb_videomemory.address;
1103 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb.xdr_ea));
1104
1105 /* Clear memory to prevent kernel info leakage into userspace */
1106 memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
1107
1108 /* The GPU command buffer is at the end of video memory */
1109 ps3fb.xdr_size = ps3fb_videomemory.size - GPU_CMD_BUF_SIZE;
1110
1111 retval = ps3fb_xdr_settings(xdr_lpar, &dev->core);
1112 if (retval)
1113 goto err_free_irq;
1114
1115 info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
1116 if (!info)
1117 goto err_free_irq;
1118
1119 par = info->par;
1120 par->mode_id = ~ps3fb_mode; /* != ps3fb_mode, to trigger change */
1121 par->new_mode_id = ps3fb_mode;
1122 par->res_index = res_index;
1123 par->num_frames = 1;
1124
1125 info->screen_base = (char __iomem *)ps3fb.xdr_ea;
1126 info->fbops = &ps3fb_ops;
1127
1128 info->fix = ps3fb_fix;
1129 info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
1130 info->fix.smem_len = ps3fb.xdr_size;
1131 info->pseudo_palette = par->pseudo_palette;
1132 info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
1133 FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
1134
1135 retval = fb_alloc_cmap(&info->cmap, 256, 0);
1136 if (retval < 0)
1137 goto err_framebuffer_release;
1138
1139 if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1140 ARRAY_SIZE(ps3fb_modedb),
1141 ps3fb_default_mode(par->new_mode_id), 32)) {
1142 retval = -EINVAL;
1143 goto err_fb_dealloc;
1144 }
1145
1146 fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1147 &info->modelist);
1148
1149 retval = register_framebuffer(info);
1150 if (retval < 0)
1151 goto err_fb_dealloc;
1152
1153 dev->core.driver_data = info;
1154
1155 dev_info(info->device, "%s %s, using %lu KiB of video memory\n",
1156 dev_driver_string(info->dev), info->dev->bus_id,
1157 ps3fb.xdr_size >> 10);
1158
1159 task = kthread_run(ps3fbd, info, DEVICE_NAME);
1160 if (IS_ERR(task)) {
1161 retval = PTR_ERR(task);
1162 goto err_unregister_framebuffer;
1163 }
1164
1165 ps3fb.task = task;
1166 ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb);
1167
1168 return 0;
1169
1170 err_unregister_framebuffer:
1171 unregister_framebuffer(info);
1172 err_fb_dealloc:
1173 fb_dealloc_cmap(&info->cmap);
1174 err_framebuffer_release:
1175 framebuffer_release(info);
1176 err_free_irq:
1177 free_irq(ps3fb.irq_no, dev);
1178 ps3_irq_plug_destroy(ps3fb.irq_no);
1179 err_iounmap_dinfo:
1180 iounmap((u8 __iomem *)ps3fb.dinfo);
1181 err_gpu_context_free:
1182 lv1_gpu_context_free(ps3fb.context_handle);
1183 err_gpu_memory_free:
1184 lv1_gpu_memory_free(ps3fb.memory_handle);
1185 err:
1186 return retval;
1187 }
1188
1189 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1190 {
1191 int status;
1192 struct fb_info *info = dev->core.driver_data;
1193
1194 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1195
1196 ps3fb_flip_ctl(0, &ps3fb); /* flip off */
1197 ps3fb.dinfo->irq.mask = 0;
1198
1199 if (info) {
1200 unregister_framebuffer(info);
1201 fb_dealloc_cmap(&info->cmap);
1202 framebuffer_release(info);
1203 }
1204
1205 ps3av_register_flip_ctl(NULL, NULL);
1206 if (ps3fb.task) {
1207 struct task_struct *task = ps3fb.task;
1208 ps3fb.task = NULL;
1209 kthread_stop(task);
1210 }
1211 if (ps3fb.irq_no) {
1212 free_irq(ps3fb.irq_no, dev);
1213 ps3_irq_plug_destroy(ps3fb.irq_no);
1214 }
1215 iounmap((u8 __iomem *)ps3fb.dinfo);
1216
1217 status = lv1_gpu_context_free(ps3fb.context_handle);
1218 if (status)
1219 dev_dbg(&dev->core, "lv1_gpu_context_free failed: %d\n",
1220 status);
1221
1222 status = lv1_gpu_memory_free(ps3fb.memory_handle);
1223 if (status)
1224 dev_dbg(&dev->core, "lv1_gpu_memory_free failed: %d\n",
1225 status);
1226
1227 ps3_close_hv_device(dev);
1228 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1229
1230 return 0;
1231 }
1232
1233 static struct ps3_system_bus_driver ps3fb_driver = {
1234 .match_id = PS3_MATCH_ID_GRAPHICS,
1235 .core.name = DEVICE_NAME,
1236 .core.owner = THIS_MODULE,
1237 .probe = ps3fb_probe,
1238 .remove = ps3fb_shutdown,
1239 .shutdown = ps3fb_shutdown,
1240 };
1241
1242 static int __init ps3fb_setup(void)
1243 {
1244 char *options;
1245
1246 #ifdef MODULE
1247 return 0;
1248 #endif
1249
1250 if (fb_get_options(DEVICE_NAME, &options))
1251 return -ENXIO;
1252
1253 if (!options || !*options)
1254 return 0;
1255
1256 while (1) {
1257 char *this_opt = strsep(&options, ",");
1258
1259 if (!this_opt)
1260 break;
1261 if (!*this_opt)
1262 continue;
1263 if (!strncmp(this_opt, "mode:", 5))
1264 ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1265 else
1266 mode_option = this_opt;
1267 }
1268 return 0;
1269 }
1270
1271 static int __init ps3fb_init(void)
1272 {
1273 if (!ps3fb_videomemory.address || ps3fb_setup())
1274 return -ENXIO;
1275
1276 return ps3_system_bus_driver_register(&ps3fb_driver);
1277 }
1278
1279 static void __exit ps3fb_exit(void)
1280 {
1281 pr_debug(" -> %s:%d\n", __func__, __LINE__);
1282 ps3_system_bus_driver_unregister(&ps3fb_driver);
1283 pr_debug(" <- %s:%d\n", __func__, __LINE__);
1284 }
1285
1286 module_init(ps3fb_init);
1287 module_exit(ps3fb_exit);
1288
1289 MODULE_LICENSE("GPL");
1290 MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1291 MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1292 MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);
kernel-based virtual machine