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ocfs2: Make the left masklogs compat.
[taoma-kernel.git] / drivers / video / ps3fb.c
blob65560a1a04392a14602533eaa23d5536941b0573
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/cell-regs.h>
36 #include <asm/lv1call.h>
37 #include <asm/ps3av.h>
38 #include <asm/ps3fb.h>
39 #include <asm/ps3.h>
40 #include <asm/ps3gpu.h>
41
42
43 #define DEVICE_NAME "ps3fb"
44
45 #define GPU_CMD_BUF_SIZE (2 * 1024 * 1024)
46 #define GPU_FB_START (64 * 1024)
47 #define GPU_IOIF (0x0d000000UL)
48 #define GPU_ALIGN_UP(x) _ALIGN_UP((x), 64)
49 #define GPU_MAX_LINE_LENGTH (65536 - 64)
50
51 #define GPU_INTR_STATUS_VSYNC_0 0 /* vsync on head A */
52 #define GPU_INTR_STATUS_VSYNC_1 1 /* vsync on head B */
53 #define GPU_INTR_STATUS_FLIP_0 3 /* flip head A */
54 #define GPU_INTR_STATUS_FLIP_1 4 /* flip head B */
55 #define GPU_INTR_STATUS_QUEUE_0 5 /* queue head A */
56 #define GPU_INTR_STATUS_QUEUE_1 6 /* queue head B */
57
58 #define GPU_DRIVER_INFO_VERSION 0x211
59
60 /* gpu internals */
61 struct display_head {
62 u64 be_time_stamp;
63 u32 status;
64 u32 offset;
65 u32 res1;
66 u32 res2;
67 u32 field;
68 u32 reserved1;
69
70 u64 res3;
71 u32 raster;
72
73 u64 vblank_count;
74 u32 field_vsync;
75 u32 reserved2;
76 };
77
78 struct gpu_irq {
79 u32 irq_outlet;
80 u32 status;
81 u32 mask;
82 u32 video_cause;
83 u32 graph_cause;
84 u32 user_cause;
85
86 u32 res1;
87 u64 res2;
88
89 u32 reserved[4];
90 };
91
92 struct gpu_driver_info {
93 u32 version_driver;
94 u32 version_gpu;
95 u32 memory_size;
96 u32 hardware_channel;
97
98 u32 nvcore_frequency;
99 u32 memory_frequency;
100
101 u32 reserved[1063];
102 struct display_head display_head[8];
103 struct gpu_irq irq;
104 };
105
106 struct ps3fb_priv {
107 unsigned int irq_no;
108
109 u64 context_handle, memory_handle;
110 struct gpu_driver_info *dinfo;
111
112 u64 vblank_count; /* frame count */
113 wait_queue_head_t wait_vsync;
114
115 atomic_t ext_flip; /* on/off flip with vsync */
116 atomic_t f_count; /* fb_open count */
117 int is_blanked;
118 int is_kicked;
119 struct task_struct *task;
120 };
121 static struct ps3fb_priv ps3fb;
122
123 struct ps3fb_par {
124 u32 pseudo_palette[16];
125 int mode_id, new_mode_id;
126 unsigned int num_frames; /* num of frame buffers */
127 unsigned int width;
128 unsigned int height;
129 unsigned int ddr_line_length;
130 unsigned int ddr_frame_size;
131 unsigned int xdr_frame_size;
132 unsigned int full_offset; /* start of fullscreen DDR fb */
133 unsigned int fb_offset; /* start of actual DDR fb */
134 unsigned int pan_offset;
135 };
136
137
138 #define FIRST_NATIVE_MODE_INDEX 10
139
140 static const struct fb_videomode ps3fb_modedb[] = {
141 /* 60 Hz broadcast modes (modes "1" to "5") */
142 {
143 /* 480i */
144 "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
145 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
146 }, {
147 /* 480p */
148 "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
149 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
150 }, {
151 /* 720p */
152 "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
153 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
154 }, {
155 /* 1080i */
156 "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
157 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
158 }, {
159 /* 1080p */
160 "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
161 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
162 },
163
164 /* 50 Hz broadcast modes (modes "6" to "10") */
165 {
166 /* 576i */
167 "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
168 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
169 }, {
170 /* 576p */
171 "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
172 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
173 }, {
174 /* 720p */
175 "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
176 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
177 }, {
178 /* 1080i */
179 "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
180 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
181 }, {
182 /* 1080p */
183 "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
184 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
185 },
186
187 [FIRST_NATIVE_MODE_INDEX] =
188 /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
189 {
190 /* 480if */
191 "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
192 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
193 }, {
194 /* 480pf */
195 "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
196 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
197 }, {
198 /* 720pf */
199 "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
200 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
201 }, {
202 /* 1080if */
203 "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
204 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
205 }, {
206 /* 1080pf */
207 "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
208 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
209 },
210
211 /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
212 {
213 /* 576if */
214 "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
215 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
216 }, {
217 /* 576pf */
218 "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
219 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
220 }, {
221 /* 720pf */
222 "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
223 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
224 }, {
225 /* 1080if */
226 "1080if", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
227 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
228 }, {
229 /* 1080pf */
230 "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
231 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
232 },
233
234 /* VESA modes (modes "11" to "13") */
235 {
236 /* WXGA */
237 "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
238 0, FB_VMODE_NONINTERLACED,
239 FB_MODE_IS_VESA
240 }, {
241 /* SXGA */
242 "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
243 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
244 FB_MODE_IS_VESA
245 }, {
246 /* WUXGA */
247 "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
248 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
249 FB_MODE_IS_VESA
250 }
251 };
252
253
254 #define HEAD_A
255 #define HEAD_B
256
257 #define BPP 4 /* number of bytes per pixel */
258
259
260 static int ps3fb_mode;
261 module_param(ps3fb_mode, int, 0);
262
263 static char *mode_option __devinitdata;
264
265 static int ps3fb_cmp_mode(const struct fb_videomode *vmode,
266 const struct fb_var_screeninfo *var)
267 {
268 long xres, yres, left_margin, right_margin, upper_margin, lower_margin;
269 long dx, dy;
270
271 /* maximum values */
272 if (var->xres > vmode->xres || var->yres > vmode->yres ||
273 var->pixclock > vmode->pixclock ||
274 var->hsync_len > vmode->hsync_len ||
275 var->vsync_len > vmode->vsync_len)
276 return -1;
277
278 /* progressive/interlaced must match */
279 if ((var->vmode & FB_VMODE_MASK) != vmode->vmode)
280 return -1;
281
282 /* minimum resolution */
283 xres = max(var->xres, 1U);
284 yres = max(var->yres, 1U);
285
286 /* minimum margins */
287 left_margin = max(var->left_margin, vmode->left_margin);
288 right_margin = max(var->right_margin, vmode->right_margin);
289 upper_margin = max(var->upper_margin, vmode->upper_margin);
290 lower_margin = max(var->lower_margin, vmode->lower_margin);
291
292 /* resolution + margins may not exceed native parameters */
293 dx = ((long)vmode->left_margin + (long)vmode->xres +
294 (long)vmode->right_margin) -
295 (left_margin + xres + right_margin);
296 if (dx < 0)
297 return -1;
298
299 dy = ((long)vmode->upper_margin + (long)vmode->yres +
300 (long)vmode->lower_margin) -
301 (upper_margin + yres + lower_margin);
302 if (dy < 0)
303 return -1;
304
305 /* exact match */
306 if (!dx && !dy)
307 return 0;
308
309 /* resolution difference */
310 return (vmode->xres - xres) * (vmode->yres - yres);
311 }
312
313 static const struct fb_videomode *ps3fb_native_vmode(enum ps3av_mode_num id)
314 {
315 return &ps3fb_modedb[FIRST_NATIVE_MODE_INDEX + id - 1];
316 }
317
318 static const struct fb_videomode *ps3fb_vmode(int id)
319 {
320 u32 mode = id & PS3AV_MODE_MASK;
321
322 if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA)
323 return NULL;
324
325 if (mode <= PS3AV_MODE_1080P50 && !(id & PS3AV_MODE_FULL)) {
326 /* Non-fullscreen broadcast mode */
327 return &ps3fb_modedb[mode - 1];
328 }
329
330 return ps3fb_native_vmode(mode);
331 }
332
333 static unsigned int ps3fb_find_mode(struct fb_var_screeninfo *var,
334 u32 *ddr_line_length, u32 *xdr_line_length)
335 {
336 unsigned int id, best_id;
337 int diff, best_diff;
338 const struct fb_videomode *vmode;
339 long gap;
340
341 best_id = 0;
342 best_diff = INT_MAX;
343 pr_debug("%s: wanted %u [%u] %u x %u [%u] %u\n", __func__,
344 var->left_margin, var->xres, var->right_margin,
345 var->upper_margin, var->yres, var->lower_margin);
346 for (id = PS3AV_MODE_480I; id <= PS3AV_MODE_WUXGA; id++) {
347 vmode = ps3fb_native_vmode(id);
348 diff = ps3fb_cmp_mode(vmode, var);
349 pr_debug("%s: mode %u: %u [%u] %u x %u [%u] %u: diff = %d\n",
350 __func__, id, vmode->left_margin, vmode->xres,
351 vmode->right_margin, vmode->upper_margin,
352 vmode->yres, vmode->lower_margin, diff);
353 if (diff < 0)
354 continue;
355 if (diff < best_diff) {
356 best_id = id;
357 if (!diff)
358 break;
359 best_diff = diff;
360 }
361 }
362
363 if (!best_id) {
364 pr_debug("%s: no suitable mode found\n", __func__);
365 return 0;
366 }
367
368 id = best_id;
369 vmode = ps3fb_native_vmode(id);
370
371 *ddr_line_length = vmode->xres * BPP;
372
373 /* minimum resolution */
374 if (!var->xres)
375 var->xres = 1;
376 if (!var->yres)
377 var->yres = 1;
378
379 /* minimum virtual resolution */
380 if (var->xres_virtual < var->xres)
381 var->xres_virtual = var->xres;
382 if (var->yres_virtual < var->yres)
383 var->yres_virtual = var->yres;
384
385 /* minimum margins */
386 if (var->left_margin < vmode->left_margin)
387 var->left_margin = vmode->left_margin;
388 if (var->right_margin < vmode->right_margin)
389 var->right_margin = vmode->right_margin;
390 if (var->upper_margin < vmode->upper_margin)
391 var->upper_margin = vmode->upper_margin;
392 if (var->lower_margin < vmode->lower_margin)
393 var->lower_margin = vmode->lower_margin;
394
395 /* extra margins */
396 gap = ((long)vmode->left_margin + (long)vmode->xres +
397 (long)vmode->right_margin) -
398 ((long)var->left_margin + (long)var->xres +
399 (long)var->right_margin);
400 if (gap > 0) {
401 var->left_margin += gap/2;
402 var->right_margin += (gap+1)/2;
403 pr_debug("%s: rounded up H to %u [%u] %u\n", __func__,
404 var->left_margin, var->xres, var->right_margin);
405 }
406
407 gap = ((long)vmode->upper_margin + (long)vmode->yres +
408 (long)vmode->lower_margin) -
409 ((long)var->upper_margin + (long)var->yres +
410 (long)var->lower_margin);
411 if (gap > 0) {
412 var->upper_margin += gap/2;
413 var->lower_margin += (gap+1)/2;
414 pr_debug("%s: rounded up V to %u [%u] %u\n", __func__,
415 var->upper_margin, var->yres, var->lower_margin);
416 }
417
418 /* fixed fields */
419 var->pixclock = vmode->pixclock;
420 var->hsync_len = vmode->hsync_len;
421 var->vsync_len = vmode->vsync_len;
422 var->sync = vmode->sync;
423
424 if (ps3_compare_firmware_version(1, 9, 0) >= 0) {
425 *xdr_line_length = GPU_ALIGN_UP(var->xres_virtual * BPP);
426 if (*xdr_line_length > GPU_MAX_LINE_LENGTH)
427 *xdr_line_length = GPU_MAX_LINE_LENGTH;
428 } else
429 *xdr_line_length = *ddr_line_length;
430
431 if (vmode->sync & FB_SYNC_BROADCAST) {
432 /* Full broadcast modes have the full mode bit set */
433 if (vmode->xres == var->xres && vmode->yres == var->yres)
434 id |= PS3AV_MODE_FULL;
435 }
436
437 pr_debug("%s: mode %u\n", __func__, id);
438 return id;
439 }
440
441 static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
442 u64 dst_offset, u64 src_offset, u32 width,
443 u32 height, u32 dst_line_length,
444 u32 src_line_length)
445 {
446 int status;
447 u64 line_length;
448
449 line_length = dst_line_length;
450 if (src_line_length != dst_line_length)
451 line_length |= (u64)src_line_length << 32;
452
453 src_offset += GPU_FB_START;
454
455 mutex_lock(&ps3_gpu_mutex);
456 status = lv1_gpu_fb_blit(ps3fb.context_handle, dst_offset,
457 GPU_IOIF + src_offset,
458 L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
459 (width << 16) | height,
460 line_length);
461 mutex_unlock(&ps3_gpu_mutex);
462
463 if (status)
464 dev_err(dev, "%s: lv1_gpu_fb_blit failed: %d\n", __func__,
465 status);
466 #ifdef HEAD_A
467 status = lv1_gpu_display_flip(ps3fb.context_handle, 0, frame_offset);
468 if (status)
469 dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
470 status);
471 #endif
472 #ifdef HEAD_B
473 status = lv1_gpu_display_flip(ps3fb.context_handle, 1, frame_offset);
474 if (status)
475 dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
476 status);
477 #endif
478 }
479
480 static int ps3fb_sync(struct fb_info *info, u32 frame)
481 {
482 struct ps3fb_par *par = info->par;
483 int error = 0;
484 u64 ddr_base, xdr_base;
485
486 if (frame > par->num_frames - 1) {
487 dev_dbg(info->device, "%s: invalid frame number (%u)\n",
488 __func__, frame);
489 error = -EINVAL;
490 goto out;
491 }
492
493 xdr_base = frame * par->xdr_frame_size;
494 ddr_base = frame * par->ddr_frame_size;
495
496 ps3fb_sync_image(info->device, ddr_base + par->full_offset,
497 ddr_base + par->fb_offset, xdr_base + par->pan_offset,
498 par->width, par->height, par->ddr_line_length,
499 info->fix.line_length);
500
501 out:
502 return error;
503 }
504
505 static int ps3fb_open(struct fb_info *info, int user)
506 {
507 atomic_inc(&ps3fb.f_count);
508 return 0;
509 }
510
511 static int ps3fb_release(struct fb_info *info, int user)
512 {
513 if (atomic_dec_and_test(&ps3fb.f_count)) {
514 if (atomic_read(&ps3fb.ext_flip)) {
515 atomic_set(&ps3fb.ext_flip, 0);
516 if (console_trylock()) {
517 ps3fb_sync(info, 0); /* single buffer */
518 console_unlock();
519 }
520 }
521 }
522 return 0;
523 }
524
525 /*
526 * Setting the video mode has been split into two parts.
527 * First part, xxxfb_check_var, must not write anything
528 * to hardware, it should only verify and adjust var.
529 * This means it doesn't alter par but it does use hardware
530 * data from it to check this var.
531 */
532
533 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
534 {
535 u32 xdr_line_length, ddr_line_length;
536 int mode;
537
538 mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);
539 if (!mode)
540 return -EINVAL;
541
542 /* Virtual screen */
543 if (var->xres_virtual > xdr_line_length / BPP) {
544 dev_dbg(info->device,
545 "Horizontal virtual screen size too large\n");
546 return -EINVAL;
547 }
548
549 if (var->xoffset + var->xres > var->xres_virtual ||
550 var->yoffset + var->yres > var->yres_virtual) {
551 dev_dbg(info->device, "panning out-of-range\n");
552 return -EINVAL;
553 }
554
555 /* We support ARGB8888 only */
556 if (var->bits_per_pixel > 32 || var->grayscale ||
557 var->red.offset > 16 || var->green.offset > 8 ||
558 var->blue.offset > 0 || var->transp.offset > 24 ||
559 var->red.length > 8 || var->green.length > 8 ||
560 var->blue.length > 8 || var->transp.length > 8 ||
561 var->red.msb_right || var->green.msb_right ||
562 var->blue.msb_right || var->transp.msb_right || var->nonstd) {
563 dev_dbg(info->device, "We support ARGB8888 only\n");
564 return -EINVAL;
565 }
566
567 var->bits_per_pixel = 32;
568 var->red.offset = 16;
569 var->green.offset = 8;
570 var->blue.offset = 0;
571 var->transp.offset = 24;
572 var->red.length = 8;
573 var->green.length = 8;
574 var->blue.length = 8;
575 var->transp.length = 8;
576 var->red.msb_right = 0;
577 var->green.msb_right = 0;
578 var->blue.msb_right = 0;
579 var->transp.msb_right = 0;
580
581 /* Rotation is not supported */
582 if (var->rotate) {
583 dev_dbg(info->device, "Rotation is not supported\n");
584 return -EINVAL;
585 }
586
587 /* Memory limit */
588 if (var->yres_virtual * xdr_line_length > info->fix.smem_len) {
589 dev_dbg(info->device, "Not enough memory\n");
590 return -ENOMEM;
591 }
592
593 var->height = -1;
594 var->width = -1;
595
596 return 0;
597 }
598
599 /*
600 * This routine actually sets the video mode.
601 */
602
603 static int ps3fb_set_par(struct fb_info *info)
604 {
605 struct ps3fb_par *par = info->par;
606 unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;
607 unsigned int ddr_xoff, ddr_yoff, offset;
608 const struct fb_videomode *vmode;
609 u64 dst;
610
611 mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);
612 if (!mode)
613 return -EINVAL;
614
615 vmode = ps3fb_native_vmode(mode & PS3AV_MODE_MASK);
616
617 info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
618 info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
619 info->fix.line_length = xdr_line_length;
620
621 par->ddr_line_length = ddr_line_length;
622 par->ddr_frame_size = vmode->yres * ddr_line_length;
623 par->xdr_frame_size = info->var.yres_virtual * xdr_line_length;
624
625 par->num_frames = info->fix.smem_len /
626 max(par->ddr_frame_size, par->xdr_frame_size);
627
628 /* Keep the special bits we cannot set using fb_var_screeninfo */
629 par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
630
631 par->width = info->var.xres;
632 par->height = info->var.yres;
633
634 /* Start of the virtual frame buffer (relative to fullscreen) */
635 ddr_xoff = info->var.left_margin - vmode->left_margin;
636 ddr_yoff = info->var.upper_margin - vmode->upper_margin;
637 offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP;
638
639 par->fb_offset = GPU_ALIGN_UP(offset);
640 par->full_offset = par->fb_offset - offset;
641 par->pan_offset = info->var.yoffset * xdr_line_length +
642 info->var.xoffset * BPP;
643
644 if (par->new_mode_id != par->mode_id) {
645 if (ps3av_set_video_mode(par->new_mode_id)) {
646 par->new_mode_id = par->mode_id;
647 return -EINVAL;
648 }
649 par->mode_id = par->new_mode_id;
650 }
651
652 /* Clear XDR frame buffer memory */
653 memset((void __force *)info->screen_base, 0, info->fix.smem_len);
654
655 /* Clear DDR frame buffer memory */
656 lines = vmode->yres * par->num_frames;
657 if (par->full_offset)
658 lines++;
659 maxlines = info->fix.smem_len / ddr_line_length;
660 for (dst = 0; lines; dst += maxlines * ddr_line_length) {
661 unsigned int l = min(lines, maxlines);
662 ps3fb_sync_image(info->device, 0, dst, 0, vmode->xres, l,
663 ddr_line_length, ddr_line_length);
664 lines -= l;
665 }
666
667 return 0;
668 }
669
670 /*
671 * Set a single color register. The values supplied are already
672 * rounded down to the hardware's capabilities (according to the
673 * entries in the var structure). Return != 0 for invalid regno.
674 */
675
676 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
677 unsigned int green, unsigned int blue,
678 unsigned int transp, struct fb_info *info)
679 {
680 if (regno >= 16)
681 return 1;
682
683 red >>= 8;
684 green >>= 8;
685 blue >>= 8;
686 transp >>= 8;
687
688 ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
689 green << 8 | blue;
690 return 0;
691 }
692
693 static int ps3fb_pan_display(struct fb_var_screeninfo *var,
694 struct fb_info *info)
695 {
696 struct ps3fb_par *par = info->par;
697
698 par->pan_offset = var->yoffset * info->fix.line_length +
699 var->xoffset * BPP;
700 return 0;
701 }
702
703 /*
704 * As we have a virtual frame buffer, we need our own mmap function
705 */
706
707 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
708 {
709 unsigned long size, offset;
710
711 size = vma->vm_end - vma->vm_start;
712 offset = vma->vm_pgoff << PAGE_SHIFT;
713 if (offset + size > info->fix.smem_len)
714 return -EINVAL;
715
716 offset += info->fix.smem_start;
717 if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
718 size, vma->vm_page_prot))
719 return -EAGAIN;
720
721 dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
722 offset, vma->vm_start);
723 return 0;
724 }
725
726 /*
727 * Blank the display
728 */
729
730 static int ps3fb_blank(int blank, struct fb_info *info)
731 {
732 int retval;
733
734 dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
735 switch (blank) {
736 case FB_BLANK_POWERDOWN:
737 case FB_BLANK_HSYNC_SUSPEND:
738 case FB_BLANK_VSYNC_SUSPEND:
739 case FB_BLANK_NORMAL:
740 retval = ps3av_video_mute(1); /* mute on */
741 if (!retval)
742 ps3fb.is_blanked = 1;
743 break;
744
745 default: /* unblank */
746 retval = ps3av_video_mute(0); /* mute off */
747 if (!retval)
748 ps3fb.is_blanked = 0;
749 break;
750 }
751 return retval;
752 }
753
754 static int ps3fb_get_vblank(struct fb_vblank *vblank)
755 {
756 memset(vblank, 0, sizeof(*vblank));
757 vblank->flags = FB_VBLANK_HAVE_VSYNC;
758 return 0;
759 }
760
761 static int ps3fb_wait_for_vsync(u32 crtc)
762 {
763 int ret;
764 u64 count;
765
766 count = ps3fb.vblank_count;
767 ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
768 count != ps3fb.vblank_count,
769 HZ / 10);
770 if (!ret)
771 return -ETIMEDOUT;
772
773 return 0;
774 }
775
776
777 /*
778 * ioctl
779 */
780
781 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
782 unsigned long arg)
783 {
784 void __user *argp = (void __user *)arg;
785 u32 val;
786 int retval = -EFAULT;
787
788 switch (cmd) {
789 case FBIOGET_VBLANK:
790 {
791 struct fb_vblank vblank;
792 dev_dbg(info->device, "FBIOGET_VBLANK:\n");
793 retval = ps3fb_get_vblank(&vblank);
794 if (retval)
795 break;
796
797 if (copy_to_user(argp, &vblank, sizeof(vblank)))
798 retval = -EFAULT;
799 break;
800 }
801
802 case FBIO_WAITFORVSYNC:
803 {
804 u32 crt;
805 dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
806 if (get_user(crt, (u32 __user *) arg))
807 break;
808
809 retval = ps3fb_wait_for_vsync(crt);
810 break;
811 }
812
813 case PS3FB_IOCTL_SETMODE:
814 {
815 struct ps3fb_par *par = info->par;
816 const struct fb_videomode *vmode;
817 struct fb_var_screeninfo var;
818
819 if (copy_from_user(&val, argp, sizeof(val)))
820 break;
821
822 if (!(val & PS3AV_MODE_MASK)) {
823 u32 id = ps3av_get_auto_mode();
824 if (id > 0)
825 val = (val & ~PS3AV_MODE_MASK) | id;
826 }
827 dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
828 retval = -EINVAL;
829 vmode = ps3fb_vmode(val);
830 if (vmode) {
831 var = info->var;
832 fb_videomode_to_var(&var, vmode);
833 console_lock();
834 info->flags |= FBINFO_MISC_USEREVENT;
835 /* Force, in case only special bits changed */
836 var.activate |= FB_ACTIVATE_FORCE;
837 par->new_mode_id = val;
838 retval = fb_set_var(info, &var);
839 info->flags &= ~FBINFO_MISC_USEREVENT;
840 console_unlock();
841 }
842 break;
843 }
844
845 case PS3FB_IOCTL_GETMODE:
846 val = ps3av_get_mode();
847 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
848 if (!copy_to_user(argp, &val, sizeof(val)))
849 retval = 0;
850 break;
851
852 case PS3FB_IOCTL_SCREENINFO:
853 {
854 struct ps3fb_par *par = info->par;
855 struct ps3fb_ioctl_res res;
856 dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
857 res.xres = info->fix.line_length / BPP;
858 res.yres = info->var.yres_virtual;
859 res.xoff = (res.xres - info->var.xres) / 2;
860 res.yoff = (res.yres - info->var.yres) / 2;
861 res.num_frames = par->num_frames;
862 if (!copy_to_user(argp, &res, sizeof(res)))
863 retval = 0;
864 break;
865 }
866
867 case PS3FB_IOCTL_ON:
868 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
869 atomic_inc(&ps3fb.ext_flip);
870 retval = 0;
871 break;
872
873 case PS3FB_IOCTL_OFF:
874 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
875 atomic_dec_if_positive(&ps3fb.ext_flip);
876 retval = 0;
877 break;
878
879 case PS3FB_IOCTL_FSEL:
880 if (copy_from_user(&val, argp, sizeof(val)))
881 break;
882
883 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
884 console_lock();
885 retval = ps3fb_sync(info, val);
886 console_unlock();
887 break;
888
889 default:
890 retval = -ENOIOCTLCMD;
891 break;
892 }
893 return retval;
894 }
895
896 static int ps3fbd(void *arg)
897 {
898 struct fb_info *info = arg;
899
900 set_freezable();
901 while (!kthread_should_stop()) {
902 try_to_freeze();
903 set_current_state(TASK_INTERRUPTIBLE);
904 if (ps3fb.is_kicked) {
905 ps3fb.is_kicked = 0;
906 console_lock();
907 ps3fb_sync(info, 0); /* single buffer */
908 console_unlock();
909 }
910 schedule();
911 }
912 return 0;
913 }
914
915 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
916 {
917 struct device *dev = ptr;
918 u64 v1;
919 int status;
920 struct display_head *head = &ps3fb.dinfo->display_head[1];
921
922 status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
923 if (status) {
924 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
925 status);
926 return IRQ_NONE;
927 }
928
929 if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
930 /* VSYNC */
931 ps3fb.vblank_count = head->vblank_count;
932 if (ps3fb.task && !ps3fb.is_blanked &&
933 !atomic_read(&ps3fb.ext_flip)) {
934 ps3fb.is_kicked = 1;
935 wake_up_process(ps3fb.task);
936 }
937 wake_up_interruptible(&ps3fb.wait_vsync);
938 }
939
940 return IRQ_HANDLED;
941 }
942
943
944 static struct fb_ops ps3fb_ops = {
945 .fb_open = ps3fb_open,
946 .fb_release = ps3fb_release,
947 .fb_read = fb_sys_read,
948 .fb_write = fb_sys_write,
949 .fb_check_var = ps3fb_check_var,
950 .fb_set_par = ps3fb_set_par,
951 .fb_setcolreg = ps3fb_setcolreg,
952 .fb_pan_display = ps3fb_pan_display,
953 .fb_fillrect = sys_fillrect,
954 .fb_copyarea = sys_copyarea,
955 .fb_imageblit = sys_imageblit,
956 .fb_mmap = ps3fb_mmap,
957 .fb_blank = ps3fb_blank,
958 .fb_ioctl = ps3fb_ioctl,
959 .fb_compat_ioctl = ps3fb_ioctl
960 };
961
962 static struct fb_fix_screeninfo ps3fb_fix __initdata = {
963 .id = DEVICE_NAME,
964 .type = FB_TYPE_PACKED_PIXELS,
965 .visual = FB_VISUAL_TRUECOLOR,
966 .accel = FB_ACCEL_NONE,
967 };
968
969 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
970 {
971 struct fb_info *info;
972 struct ps3fb_par *par;
973 int retval;
974 u64 ddr_lpar = 0;
975 u64 lpar_dma_control = 0;
976 u64 lpar_driver_info = 0;
977 u64 lpar_reports = 0;
978 u64 lpar_reports_size = 0;
979 u64 xdr_lpar;
980 struct gpu_driver_info *dinfo;
981 void *fb_start;
982 int status;
983 struct task_struct *task;
984 unsigned long max_ps3fb_size;
985
986 if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {
987 dev_err(&dev->core, "%s: Not enough video memory\n", __func__);
988 return -ENOMEM;
989 }
990
991 retval = ps3_open_hv_device(dev);
992 if (retval) {
993 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
994 __func__);
995 goto err;
996 }
997
998 if (!ps3fb_mode)
999 ps3fb_mode = ps3av_get_mode();
1000 dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode);
1001
1002 atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1003 atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1004 init_waitqueue_head(&ps3fb.wait_vsync);
1005
1006 #ifdef HEAD_A
1007 status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC);
1008 if (status) {
1009 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1010 __func__, status);
1011 retval = -ENODEV;
1012 goto err_close_device;
1013 }
1014 #endif
1015 #ifdef HEAD_B
1016 status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC);
1017 if (status) {
1018 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1019 __func__, status);
1020 retval = -ENODEV;
1021 goto err_close_device;
1022 }
1023 #endif
1024
1025 max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
1026 if (ps3fb_videomemory.size > max_ps3fb_size) {
1027 dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",
1028 max_ps3fb_size);
1029 ps3fb_videomemory.size = max_ps3fb_size;
1030 }
1031
1032 /* get gpu context handle */
1033 status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,
1034 &ps3fb.memory_handle, &ddr_lpar);
1035 if (status) {
1036 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1037 __func__, status);
1038 goto err_close_device;
1039 }
1040 dev_dbg(&dev->core, "ddr:lpar:0x%llx\n", ddr_lpar);
1041
1042 status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1043 &ps3fb.context_handle,
1044 &lpar_dma_control, &lpar_driver_info,
1045 &lpar_reports, &lpar_reports_size);
1046 if (status) {
1047 dev_err(&dev->core,
1048 "%s: lv1_gpu_context_allocate failed: %d\n", __func__,
1049 status);
1050 goto err_gpu_memory_free;
1051 }
1052
1053 /* vsync interrupt */
1054 dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);
1055 if (!dinfo) {
1056 dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1057 goto err_gpu_context_free;
1058 }
1059
1060 ps3fb.dinfo = dinfo;
1061 dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver);
1062 dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet);
1063 dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x "
1064 "core_freq: %d mem_freq:%d\n", dinfo->version_gpu,
1065 dinfo->memory_size, dinfo->hardware_channel,
1066 dinfo->nvcore_frequency/1000000,
1067 dinfo->memory_frequency/1000000);
1068
1069 if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
1070 dev_err(&dev->core, "%s: version_driver err:%x\n", __func__,
1071 dinfo->version_driver);
1072 retval = -EINVAL;
1073 goto err_iounmap_dinfo;
1074 }
1075
1076 retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
1077 &ps3fb.irq_no);
1078 if (retval) {
1079 dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__,
1080 retval);
1081 goto err_iounmap_dinfo;
1082 }
1083
1084 retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt,
1085 IRQF_DISABLED, DEVICE_NAME, &dev->core);
1086 if (retval) {
1087 dev_err(&dev->core, "%s: request_irq failed %d\n", __func__,
1088 retval);
1089 goto err_destroy_plug;
1090 }
1091
1092 dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
1093 (1 << GPU_INTR_STATUS_FLIP_1);
1094
1095 /* Clear memory to prevent kernel info leakage into userspace */
1096 memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size);
1097
1098 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1099
1100 status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
1101 xdr_lpar, ps3fb_videomemory.size,
1102 CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
1103 CBE_IOPTE_M);
1104 if (status) {
1105 dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n",
1106 __func__, status);
1107 retval = -ENXIO;
1108 goto err_free_irq;
1109 }
1110
1111 dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n",
1112 ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,
1113 ps3fb_videomemory.size);
1114
1115 status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar,
1116 GPU_CMD_BUF_SIZE, GPU_IOIF);
1117 if (status) {
1118 dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n",
1119 __func__, status);
1120 retval = -ENXIO;
1121 goto err_context_unmap;
1122 }
1123
1124 info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
1125 if (!info)
1126 goto err_context_fb_close;
1127
1128 par = info->par;
1129 par->mode_id = ~ps3fb_mode; /* != ps3fb_mode, to trigger change */
1130 par->new_mode_id = ps3fb_mode;
1131 par->num_frames = 1;
1132
1133 info->fbops = &ps3fb_ops;
1134 info->fix = ps3fb_fix;
1135
1136 /*
1137 * The GPU command buffer is at the start of video memory
1138 * As we don't use the full command buffer, we can put the actual
1139 * frame buffer at offset GPU_FB_START and save some precious XDR
1140 * memory
1141 */
1142 fb_start = ps3fb_videomemory.address + GPU_FB_START;
1143 info->screen_base = (char __force __iomem *)fb_start;
1144 info->fix.smem_start = virt_to_abs(fb_start);
1145 info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START;
1146
1147 info->pseudo_palette = par->pseudo_palette;
1148 info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
1149 FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
1150
1151 retval = fb_alloc_cmap(&info->cmap, 256, 0);
1152 if (retval < 0)
1153 goto err_framebuffer_release;
1154
1155 if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1156 ARRAY_SIZE(ps3fb_modedb),
1157 ps3fb_vmode(par->new_mode_id), 32)) {
1158 retval = -EINVAL;
1159 goto err_fb_dealloc;
1160 }
1161
1162 fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1163 &info->modelist);
1164
1165 retval = register_framebuffer(info);
1166 if (retval < 0)
1167 goto err_fb_dealloc;
1168
1169 ps3_system_bus_set_drvdata(dev, info);
1170
1171 dev_info(info->device, "%s %s, using %u KiB of video memory\n",
1172 dev_driver_string(info->dev), dev_name(info->dev),
1173 info->fix.smem_len >> 10);
1174
1175 task = kthread_run(ps3fbd, info, DEVICE_NAME);
1176 if (IS_ERR(task)) {
1177 retval = PTR_ERR(task);
1178 goto err_unregister_framebuffer;
1179 }
1180
1181 ps3fb.task = task;
1182
1183 return 0;
1184
1185 err_unregister_framebuffer:
1186 unregister_framebuffer(info);
1187 err_fb_dealloc:
1188 fb_dealloc_cmap(&info->cmap);
1189 err_framebuffer_release:
1190 framebuffer_release(info);
1191 err_context_fb_close:
1192 lv1_gpu_fb_close(ps3fb.context_handle);
1193 err_context_unmap:
1194 lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1195 ps3fb_videomemory.size, CBE_IOPTE_M);
1196 err_free_irq:
1197 free_irq(ps3fb.irq_no, &dev->core);
1198 err_destroy_plug:
1199 ps3_irq_plug_destroy(ps3fb.irq_no);
1200 err_iounmap_dinfo:
1201 iounmap((u8 __force __iomem *)ps3fb.dinfo);
1202 err_gpu_context_free:
1203 lv1_gpu_context_free(ps3fb.context_handle);
1204 err_gpu_memory_free:
1205 lv1_gpu_memory_free(ps3fb.memory_handle);
1206 err_close_device:
1207 ps3_close_hv_device(dev);
1208 err:
1209 return retval;
1210 }
1211
1212 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1213 {
1214 struct fb_info *info = ps3_system_bus_get_drvdata(dev);
1215 u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1216
1217 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1218
1219 atomic_inc(&ps3fb.ext_flip); /* flip off */
1220 ps3fb.dinfo->irq.mask = 0;
1221
1222 if (ps3fb.task) {
1223 struct task_struct *task = ps3fb.task;
1224 ps3fb.task = NULL;
1225 kthread_stop(task);
1226 }
1227 if (ps3fb.irq_no) {
1228 free_irq(ps3fb.irq_no, &dev->core);
1229 ps3_irq_plug_destroy(ps3fb.irq_no);
1230 }
1231 if (info) {
1232 unregister_framebuffer(info);
1233 fb_dealloc_cmap(&info->cmap);
1234 framebuffer_release(info);
1235 ps3_system_bus_set_drvdata(dev, NULL);
1236 }
1237 iounmap((u8 __force __iomem *)ps3fb.dinfo);
1238 lv1_gpu_fb_close(ps3fb.context_handle);
1239 lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1240 ps3fb_videomemory.size, CBE_IOPTE_M);
1241 lv1_gpu_context_free(ps3fb.context_handle);
1242 lv1_gpu_memory_free(ps3fb.memory_handle);
1243 ps3_close_hv_device(dev);
1244 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1245
1246 return 0;
1247 }
1248
1249 static struct ps3_system_bus_driver ps3fb_driver = {
1250 .match_id = PS3_MATCH_ID_GPU,
1251 .match_sub_id = PS3_MATCH_SUB_ID_GPU_FB,
1252 .core.name = DEVICE_NAME,
1253 .core.owner = THIS_MODULE,
1254 .probe = ps3fb_probe,
1255 .remove = ps3fb_shutdown,
1256 .shutdown = ps3fb_shutdown,
1257 };
1258
1259 static int __init ps3fb_setup(void)
1260 {
1261 char *options;
1262
1263 #ifdef MODULE
1264 return 0;
1265 #endif
1266
1267 if (fb_get_options(DEVICE_NAME, &options))
1268 return -ENXIO;
1269
1270 if (!options || !*options)
1271 return 0;
1272
1273 while (1) {
1274 char *this_opt = strsep(&options, ",");
1275
1276 if (!this_opt)
1277 break;
1278 if (!*this_opt)
1279 continue;
1280 if (!strncmp(this_opt, "mode:", 5))
1281 ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1282 else
1283 mode_option = this_opt;
1284 }
1285 return 0;
1286 }
1287
1288 static int __init ps3fb_init(void)
1289 {
1290 if (!ps3fb_videomemory.address || ps3fb_setup())
1291 return -ENXIO;
1292
1293 return ps3_system_bus_driver_register(&ps3fb_driver);
1294 }
1295
1296 static void __exit ps3fb_exit(void)
1297 {
1298 pr_debug(" -> %s:%d\n", __func__, __LINE__);
1299 ps3_system_bus_driver_unregister(&ps3fb_driver);
1300 pr_debug(" <- %s:%d\n", __func__, __LINE__);
1301 }
1302
1303 module_init(ps3fb_init);
1304 module_exit(ps3fb_exit);
1305
1306 MODULE_LICENSE("GPL");
1307 MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1308 MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1309 MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);
The kernel tree for Tao Ma.