Pull misc into release branch
[linux-2.6] / 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_DEFAULT | FBINFO_READS_FAST;
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);