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   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
  58 #define PS3FB_FULL_MODE_BIT                     0x80
  59
  60 #define GPU_INTR_STATUS_VSYNC_0                 0       /* vsync on head A */
  61 #define GPU_INTR_STATUS_VSYNC_1                 1       /* vsync on head B */
  62 #define GPU_INTR_STATUS_FLIP_0                  3       /* flip head A */
  63 #define GPU_INTR_STATUS_FLIP_1                  4       /* flip head B */
  64 #define GPU_INTR_STATUS_QUEUE_0                 5       /* queue head A */
  65 #define GPU_INTR_STATUS_QUEUE_1                 6       /* queue head B */
  66
  67 #define GPU_DRIVER_INFO_VERSION                 0x211
  68
  69 /* gpu internals */
  70 struct display_head {
  71         u64 be_time_stamp;
  72         u32 status;
  73         u32 offset;
  74         u32 res1;
  75         u32 res2;
  76         u32 field;
  77         u32 reserved1;
  78
  79         u64 res3;
  80         u32 raster;
  81
  82         u64 vblank_count;
  83         u32 field_vsync;
  84         u32 reserved2;
  85 };
  86
  87 struct gpu_irq {
  88         u32 irq_outlet;
  89         u32 status;
  90         u32 mask;
  91         u32 video_cause;
  92         u32 graph_cause;
  93         u32 user_cause;
  94
  95         u32 res1;
  96         u64 res2;
  97
  98         u32 reserved[4];
  99 };
 100
 101 struct gpu_driver_info {
 102         u32 version_driver;
 103         u32 version_gpu;
 104         u32 memory_size;
 105         u32 hardware_channel;
 106
 107         u32 nvcore_frequency;
 108         u32 memory_frequency;
 109
 110         u32 reserved[1063];
 111         struct display_head display_head[8];
 112         struct gpu_irq irq;
 113 };
 114
 115 struct ps3fb_priv {
 116         unsigned int irq_no;
 117
 118         u64 context_handle, memory_handle;
 119         void *xdr_ea;
 120         size_t xdr_size;
 121         struct gpu_driver_info *dinfo;
 122
 123         u64 vblank_count;       /* frame count */
 124         wait_queue_head_t wait_vsync;
 125
 126         atomic_t ext_flip;      /* on/off flip with vsync */
 127         atomic_t f_count;       /* fb_open count */
 128         int is_blanked;
 129         int is_kicked;
 130         struct task_struct *task;
 131 };
 132 static struct ps3fb_priv ps3fb;
 133
 134 struct ps3fb_par {
 135         u32 pseudo_palette[16];
 136         int mode_id, new_mode_id;
 137         int res_index;
 138         unsigned int num_frames;        /* num of frame buffers */
 139 };
 140
 141 struct ps3fb_res_table {
 142         u32 xres;
 143         u32 yres;
 144         u32 xoff;
 145         u32 yoff;
 146         u32 type;
 147 };
 148 #define PS3FB_RES_FULL 1
 149 static const struct ps3fb_res_table ps3fb_res[] = {
 150         /* res_x,y   margin_x,y  full */
 151         {  720,  480,  72,  48 , 0},
 152         {  720,  576,  72,  58 , 0},
 153         { 1280,  720,  78,  38 , 0},
 154         { 1920, 1080, 116,  58 , 0},
 155         /* full mode */
 156         {  720,  480,   0,   0 , PS3FB_RES_FULL},
 157         {  720,  576,   0,   0 , PS3FB_RES_FULL},
 158         { 1280,  720,   0,   0 , PS3FB_RES_FULL},
 159         { 1920, 1080,   0,   0 , PS3FB_RES_FULL},
 160         /* vesa: normally full mode */
 161         { 1280,  768,   0,   0 , 0},
 162         { 1280, 1024,   0,   0 , 0},
 163         { 1920, 1200,   0,   0 , 0},
 164         {    0,    0,   0,   0 , 0} };
 165
 166 /* default resolution */
 167 #define GPU_RES_INDEX   0               /* 720 x 480 */
 168
 169 static const struct fb_videomode ps3fb_modedb[] = {
 170     /* 60 Hz broadcast modes (modes "1" to "5") */
 171     {
 172         /* 480i */
 173         "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
 174         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 175     },    {
 176         /* 480p */
 177         "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
 178         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 179     },    {
 180         /* 720p */
 181         "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
 182         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 183     },    {
 184         /* 1080i */
 185         "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
 186         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 187     },    {
 188         /* 1080p */
 189         "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
 190         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 191     },
 192
 193     /* 50 Hz broadcast modes (modes "6" to "10") */
 194     {
 195         /* 576i */
 196         "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
 197         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 198     },    {
 199         /* 576p */
 200         "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
 201         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 202     },    {
 203         /* 720p */
 204         "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
 205         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 206     },    {
 207         /* 1080 */
 208         "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
 209         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 210     },    {
 211         /* 1080p */
 212         "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
 213         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 214     },
 215
 216     /* VESA modes (modes "11" to "13") */
 217     {
 218         /* WXGA */
 219         "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
 220         0, FB_VMODE_NONINTERLACED,
 221         FB_MODE_IS_VESA
 222     }, {
 223         /* SXGA */
 224         "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
 225         FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
 226         FB_MODE_IS_VESA
 227     }, {
 228         /* WUXGA */
 229         "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
 230         FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
 231         FB_MODE_IS_VESA
 232     },
 233
 234     /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
 235     {
 236         /* 480if */
 237         "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
 238         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 239     }, {
 240         /* 480pf */
 241         "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
 242         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 243     }, {
 244         /* 720pf */
 245         "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
 246         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 247     }, {
 248         /* 1080if */
 249         "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
 250         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 251     }, {
 252         /* 1080pf */
 253         "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
 254         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 255     },
 256
 257     /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
 258     {
 259         /* 576if */
 260         "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
 261         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 262     }, {
 263         /* 576pf */
 264         "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
 265         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 266     }, {
 267         /* 720pf */
 268         "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
 269         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 270     }, {
 271         /* 1080if */
 272         "1080f", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
 273         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 274     }, {
 275         /* 1080pf */
 276         "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
 277         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 278     }
 279 };
 280
 281
 282 #define HEAD_A
 283 #define HEAD_B
 284
 285 #define X_OFF(i)        (ps3fb_res[i].xoff)     /* left/right margin (pixel) */
 286 #define Y_OFF(i)        (ps3fb_res[i].yoff)     /* top/bottom margin (pixel) */
 287 #define WIDTH(i)        (ps3fb_res[i].xres)     /* width of FB */
 288 #define HEIGHT(i)       (ps3fb_res[i].yres)     /* height of FB */
 289 #define BPP             4                       /* number of bytes per pixel */
 290
 291 /* Start of the virtual frame buffer (relative to fullscreen ) */
 292 #define VP_OFF(i)       ((WIDTH(i) * Y_OFF(i) + X_OFF(i)) * BPP)
 293
 294 /*
 295  * Start of the virtual frame buffer (relative to start of video memory)
 296  * This is PAGE_SIZE aligned for easier mmap()
 297  */
 298 #define VFB_OFF(i)      PAGE_ALIGN(VP_OFF(i))
 299
 300 /* Start of the fullscreen frame buffer (relative to start of video memory) */
 301 #define FB_OFF(i)       (-VP_OFF(i) & ~PAGE_MASK)
 302
 303
 304 static int ps3fb_mode;
 305 module_param(ps3fb_mode, int, 0);
 306
 307 static char *mode_option __devinitdata;
 308
 309 static int ps3fb_get_res_table(u32 xres, u32 yres, int mode)
 310 {
 311         int full_mode;
 312         unsigned int i;
 313         u32 x, y, f;
 314
 315         full_mode = (mode & PS3FB_FULL_MODE_BIT) ? PS3FB_RES_FULL : 0;
 316         for (i = 0;; i++) {
 317                 x = ps3fb_res[i].xres;
 318                 y = ps3fb_res[i].yres;
 319                 f = ps3fb_res[i].type;
 320
 321                 if (!x) {
 322                         pr_debug("ERROR: ps3fb_get_res_table()\n");
 323                         return -1;
 324                 }
 325
 326                 if (full_mode == PS3FB_RES_FULL && f != PS3FB_RES_FULL)
 327                         continue;
 328
 329                 if (x == xres && (yres == 0 || y == yres))
 330                         break;
 331
 332                 x = x - 2 * ps3fb_res[i].xoff;
 333                 y = y - 2 * ps3fb_res[i].yoff;
 334                 if (x == xres && (yres == 0 || y == yres))
 335                         break;
 336         }
 337         return i;
 338 }
 339
 340 static unsigned int ps3fb_find_mode(const struct fb_var_screeninfo *var,
 341                                     u32 *line_length)
 342 {
 343         unsigned int i, mode;
 344
 345         for (i = 0; i < ARRAY_SIZE(ps3fb_modedb); i++)
 346                 if (var->xres == ps3fb_modedb[i].xres &&
 347                     var->yres == ps3fb_modedb[i].yres &&
 348                     var->pixclock == ps3fb_modedb[i].pixclock &&
 349                     var->hsync_len == ps3fb_modedb[i].hsync_len &&
 350                     var->vsync_len == ps3fb_modedb[i].vsync_len &&
 351                     var->left_margin == ps3fb_modedb[i].left_margin &&
 352                     var->right_margin == ps3fb_modedb[i].right_margin &&
 353                     var->upper_margin == ps3fb_modedb[i].upper_margin &&
 354                     var->lower_margin == ps3fb_modedb[i].lower_margin &&
 355                     var->sync == ps3fb_modedb[i].sync &&
 356                     (var->vmode & FB_VMODE_MASK) == ps3fb_modedb[i].vmode) {
 357                         /* Cropped broadcast modes use the full line_length */
 358                         *line_length =
 359                             ps3fb_modedb[i < 10 ? i + 13 : i].xres * 4;
 360                         /* Full broadcast modes have the full mode bit set */
 361                         mode = i > 12 ? (i - 12) | PS3FB_FULL_MODE_BIT : i + 1;
 362
 363                         pr_debug("ps3fb_find_mode: mode %u\n", mode);
 364                         return mode;
 365                 }
 366
 367         pr_debug("ps3fb_find_mode: mode not found\n");
 368         return 0;
 369 }
 370
 371 static const struct fb_videomode *ps3fb_default_mode(int id)
 372 {
 373         u32 mode = id & PS3AV_MODE_MASK;
 374         u32 flags;
 375
 376         if (mode < 1 || mode > 13)
 377                 return NULL;
 378
 379         flags = id & ~PS3AV_MODE_MASK;
 380
 381         if (mode <= 10 && flags & PS3FB_FULL_MODE_BIT) {
 382                 /* Full broadcast mode */
 383                 return &ps3fb_modedb[mode + 12];
 384         }
 385
 386         return &ps3fb_modedb[mode - 1];
 387 }
 388
 389 static int ps3fb_sync(struct fb_info *info, u32 frame)
 390 {
 391         struct ps3fb_par *par = info->par;
 392         int i, status, error = 0;
 393         u32 xres, yres;
 394         u64 fb_ioif, offset;
 395
 396         acquire_console_sem();
 397
 398         i = par->res_index;
 399         xres = ps3fb_res[i].xres;
 400         yres = ps3fb_res[i].yres;
 401
 402         if (frame > par->num_frames - 1) {
 403                 dev_dbg(info->device, "%s: invalid frame number (%u)\n",
 404                         __func__, frame);
 405                 error = -EINVAL;
 406                 goto out;
 407         }
 408         offset = xres * yres * BPP * frame;
 409
 410         fb_ioif = GPU_IOIF + FB_OFF(i) + offset;
 411         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 412                                            L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
 413                                            offset, fb_ioif,
 414                                            L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
 415                                            (xres << 16) | yres,
 416                                            xres * BPP); /* line_length */
 417         if (status)
 418                 dev_err(info->device,
 419                         "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
 420                         __func__, status);
 421 #ifdef HEAD_A
 422         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 423                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
 424                                            0, offset, 0, 0);
 425         if (status)
 426                 dev_err(info->device,
 427                         "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
 428                         __func__, status);
 429 #endif
 430 #ifdef HEAD_B
 431         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 432                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
 433                                            1, offset, 0, 0);
 434         if (status)
 435                 dev_err(info->device,
 436                         "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
 437                         __func__, status);
 438 #endif
 439
 440 out:
 441         release_console_sem();
 442         return error;
 443 }
 444
 445
 446 static int ps3fb_open(struct fb_info *info, int user)
 447 {
 448         atomic_inc(&ps3fb.f_count);
 449         return 0;
 450 }
 451
 452 static int ps3fb_release(struct fb_info *info, int user)
 453 {
 454         if (atomic_dec_and_test(&ps3fb.f_count)) {
 455                 if (atomic_read(&ps3fb.ext_flip)) {
 456                         atomic_set(&ps3fb.ext_flip, 0);
 457                         ps3fb_sync(info, 0);    /* single buffer */
 458                 }
 459         }
 460         return 0;
 461 }
 462
 463     /*
 464      *  Setting the video mode has been split into two parts.
 465      *  First part, xxxfb_check_var, must not write anything
 466      *  to hardware, it should only verify and adjust var.
 467      *  This means it doesn't alter par but it does use hardware
 468      *  data from it to check this var.
 469      */
 470
 471 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 472 {
 473         u32 line_length;
 474         int mode;
 475         int i;
 476
 477         dev_dbg(info->device, "var->xres:%u info->var.xres:%u\n", var->xres,
 478                 info->var.xres);
 479         dev_dbg(info->device, "var->yres:%u info->var.yres:%u\n", var->yres,
 480                 info->var.yres);
 481
 482         /* FIXME For now we do exact matches only */
 483         mode = ps3fb_find_mode(var, &line_length);
 484         if (!mode)
 485                 return -EINVAL;
 486
 487         /*
 488          *  FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
 489          *  as FB_VMODE_SMOOTH_XPAN is only used internally
 490          */
 491
 492         if (var->vmode & FB_VMODE_CONUPDATE) {
 493                 var->vmode |= FB_VMODE_YWRAP;
 494                 var->xoffset = info->var.xoffset;
 495                 var->yoffset = info->var.yoffset;
 496         }
 497
 498         /* Virtual screen and panning are not supported */
 499         if (var->xres_virtual > var->xres || var->yres_virtual > var->yres ||
 500             var->xoffset || var->yoffset) {
 501                 dev_dbg(info->device,
 502                         "Virtual screen and panning are not supported\n");
 503                 return -EINVAL;
 504         }
 505
 506         var->xres_virtual = var->xres;
 507         var->yres_virtual = var->yres;
 508
 509         /* We support ARGB8888 only */
 510         if (var->bits_per_pixel > 32 || var->grayscale ||
 511             var->red.offset > 16 || var->green.offset > 8 ||
 512             var->blue.offset > 0 || var->transp.offset > 24 ||
 513             var->red.length > 8 || var->green.length > 8 ||
 514             var->blue.length > 8 || var->transp.length > 8 ||
 515             var->red.msb_right || var->green.msb_right ||
 516             var->blue.msb_right || var->transp.msb_right || var->nonstd) {
 517                 dev_dbg(info->device, "We support ARGB8888 only\n");
 518                 return -EINVAL;
 519         }
 520
 521         var->bits_per_pixel = 32;
 522         var->red.offset = 16;
 523         var->green.offset = 8;
 524         var->blue.offset = 0;
 525         var->transp.offset = 24;
 526         var->red.length = 8;
 527         var->green.length = 8;
 528         var->blue.length = 8;
 529         var->transp.length = 8;
 530         var->red.msb_right = 0;
 531         var->green.msb_right = 0;
 532         var->blue.msb_right = 0;
 533         var->transp.msb_right = 0;
 534
 535         /* Rotation is not supported */
 536         if (var->rotate) {
 537                 dev_dbg(info->device, "Rotation is not supported\n");
 538                 return -EINVAL;
 539         }
 540
 541         /* Memory limit */
 542         i = ps3fb_get_res_table(var->xres, var->yres, mode);
 543         if (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP >
 544             ps3fb.xdr_size - VFB_OFF(i)) {
 545                 dev_dbg(info->device, "Not enough memory\n");
 546                 return -ENOMEM;
 547         }
 548
 549         var->height = -1;
 550         var->width = -1;
 551
 552         return 0;
 553 }
 554
 555     /*
 556      * This routine actually sets the video mode.
 557      */
 558
 559 static int ps3fb_set_par(struct fb_info *info)
 560 {
 561         struct ps3fb_par *par = info->par;
 562         unsigned int mode;
 563         int i;
 564         unsigned long offset;
 565
 566         dev_dbg(info->device, "xres:%d xv:%d yres:%d yv:%d clock:%d\n",
 567                 info->var.xres, info->var.xres_virtual,
 568                 info->var.yres, info->var.yres_virtual, info->var.pixclock);
 569
 570         mode = ps3fb_find_mode(&info->var, &info->fix.line_length);
 571         if (!mode)
 572                 return -EINVAL;
 573
 574         i = ps3fb_get_res_table(info->var.xres, info->var.yres, mode);
 575         par->res_index = i;
 576
 577         offset = VFB_OFF(i);
 578         info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea) + offset;
 579         info->fix.smem_len = ps3fb.xdr_size - offset;
 580         info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
 581         memset(ps3fb.xdr_ea, 0, ps3fb.xdr_size);
 582
 583         par->num_frames = info->fix.smem_len/
 584                           (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP);
 585
 586         /* Keep the special bits we cannot set using fb_var_screeninfo */
 587         par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
 588
 589         if (par->new_mode_id != par->mode_id) {
 590                 if (ps3av_set_video_mode(par->new_mode_id)) {
 591                         par->new_mode_id = par->mode_id;
 592                         return -EINVAL;
 593                 }
 594                 par->mode_id = par->new_mode_id;
 595         }
 596
 597         return 0;
 598 }
 599
 600     /*
 601      *  Set a single color register. The values supplied are already
 602      *  rounded down to the hardware's capabilities (according to the
 603      *  entries in the var structure). Return != 0 for invalid regno.
 604      */
 605
 606 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
 607                            unsigned int green, unsigned int blue,
 608                            unsigned int transp, struct fb_info *info)
 609 {
 610         if (regno >= 16)
 611                 return 1;
 612
 613         red >>= 8;
 614         green >>= 8;
 615         blue >>= 8;
 616         transp >>= 8;
 617
 618         ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
 619                                                green << 8 | blue;
 620         return 0;
 621 }
 622
 623     /*
 624      *  As we have a virtual frame buffer, we need our own mmap function
 625      */
 626
 627 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 628 {
 629         unsigned long size, offset;
 630
 631         size = vma->vm_end - vma->vm_start;
 632         offset = vma->vm_pgoff << PAGE_SHIFT;
 633         if (offset + size > info->fix.smem_len)
 634                 return -EINVAL;
 635
 636         offset += info->fix.smem_start;
 637         if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
 638                             size, vma->vm_page_prot))
 639                 return -EAGAIN;
 640
 641         dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
 642                 offset, vma->vm_start);
 643         return 0;
 644 }
 645
 646     /*
 647      * Blank the display
 648      */
 649
 650 static int ps3fb_blank(int blank, struct fb_info *info)
 651 {
 652         int retval;
 653
 654         dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
 655         switch (blank) {
 656         case FB_BLANK_POWERDOWN:
 657         case FB_BLANK_HSYNC_SUSPEND:
 658         case FB_BLANK_VSYNC_SUSPEND:
 659         case FB_BLANK_NORMAL:
 660                 retval = ps3av_video_mute(1);   /* mute on */
 661                 if (!retval)
 662                         ps3fb.is_blanked = 1;
 663                 break;
 664
 665         default:                /* unblank */
 666                 retval = ps3av_video_mute(0);   /* mute off */
 667                 if (!retval)
 668                         ps3fb.is_blanked = 0;
 669                 break;
 670         }
 671         return retval;
 672 }
 673
 674 static int ps3fb_get_vblank(struct fb_vblank *vblank)
 675 {
 676         memset(vblank, 0, sizeof(&vblank));
 677         vblank->flags = FB_VBLANK_HAVE_VSYNC;
 678         return 0;
 679 }
 680
 681 static int ps3fb_wait_for_vsync(u32 crtc)
 682 {
 683         int ret;
 684         u64 count;
 685
 686         count = ps3fb.vblank_count;
 687         ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
 688                                                count != ps3fb.vblank_count,
 689                                                HZ / 10);
 690         if (!ret)
 691                 return -ETIMEDOUT;
 692
 693         return 0;
 694 }
 695
 696 static void ps3fb_flip_ctl(int on, void *data)
 697 {
 698         struct ps3fb_priv *priv = data;
 699         if (on)
 700                 atomic_dec_if_positive(&priv->ext_flip);
 701         else
 702                 atomic_inc(&priv->ext_flip);
 703 }
 704
 705
 706     /*
 707      * ioctl
 708      */
 709
 710 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 711                        unsigned long arg)
 712 {
 713         void __user *argp = (void __user *)arg;
 714         u32 val;
 715         int retval = -EFAULT;
 716
 717         switch (cmd) {
 718         case FBIOGET_VBLANK:
 719                 {
 720                         struct fb_vblank vblank;
 721                         dev_dbg(info->device, "FBIOGET_VBLANK:\n");
 722                         retval = ps3fb_get_vblank(&vblank);
 723                         if (retval)
 724                                 break;
 725
 726                         if (copy_to_user(argp, &vblank, sizeof(vblank)))
 727                                 retval = -EFAULT;
 728                         break;
 729                 }
 730
 731         case FBIO_WAITFORVSYNC:
 732                 {
 733                         u32 crt;
 734                         dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
 735                         if (get_user(crt, (u32 __user *) arg))
 736                                 break;
 737
 738                         retval = ps3fb_wait_for_vsync(crt);
 739                         break;
 740                 }
 741
 742         case PS3FB_IOCTL_SETMODE:
 743                 {
 744                         struct ps3fb_par *par = info->par;
 745                         const struct fb_videomode *mode;
 746                         struct fb_var_screeninfo var;
 747
 748                         if (copy_from_user(&val, argp, sizeof(val)))
 749                                 break;
 750
 751                         if (!(val & PS3AV_MODE_MASK)) {
 752                                 u32 id = ps3av_get_auto_mode();
 753                                 if (id > 0)
 754                                         val = (val & ~PS3AV_MODE_MASK) | id;
 755                         }
 756                         dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
 757                         retval = -EINVAL;
 758                         mode = ps3fb_default_mode(val);
 759                         if (mode) {
 760                                 var = info->var;
 761                                 fb_videomode_to_var(&var, mode);
 762                                 acquire_console_sem();
 763                                 info->flags |= FBINFO_MISC_USEREVENT;
 764                                 /* Force, in case only special bits changed */
 765                                 var.activate |= FB_ACTIVATE_FORCE;
 766                                 par->new_mode_id = val;
 767                                 retval = fb_set_var(info, &var);
 768                                 info->flags &= ~FBINFO_MISC_USEREVENT;
 769                                 release_console_sem();
 770                         }
 771                         break;
 772                 }
 773
 774         case PS3FB_IOCTL_GETMODE:
 775                 val = ps3av_get_mode();
 776                 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
 777                 if (!copy_to_user(argp, &val, sizeof(val)))
 778                         retval = 0;
 779                 break;
 780
 781         case PS3FB_IOCTL_SCREENINFO:
 782                 {
 783                         struct ps3fb_par *par = info->par;
 784                         struct ps3fb_ioctl_res res;
 785                         int i = par->res_index;
 786                         dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
 787                         res.xres = ps3fb_res[i].xres;
 788                         res.yres = ps3fb_res[i].yres;
 789                         res.xoff = ps3fb_res[i].xoff;
 790                         res.yoff = ps3fb_res[i].yoff;
 791                         res.num_frames = par->num_frames;
 792                         if (!copy_to_user(argp, &res, sizeof(res)))
 793                                 retval = 0;
 794                         break;
 795                 }
 796
 797         case PS3FB_IOCTL_ON:
 798                 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
 799                 atomic_inc(&ps3fb.ext_flip);
 800                 retval = 0;
 801                 break;
 802
 803         case PS3FB_IOCTL_OFF:
 804                 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
 805                 atomic_dec_if_positive(&ps3fb.ext_flip);
 806                 retval = 0;
 807                 break;
 808
 809         case PS3FB_IOCTL_FSEL:
 810                 if (copy_from_user(&val, argp, sizeof(val)))
 811                         break;
 812
 813                 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
 814                 retval = ps3fb_sync(info, val);
 815                 break;
 816
 817         default:
 818                 retval = -ENOIOCTLCMD;
 819                 break;
 820         }
 821         return retval;
 822 }
 823
 824 static int ps3fbd(void *arg)
 825 {
 826         struct fb_info *info = arg;
 827
 828         set_freezable();
 829         while (!kthread_should_stop()) {
 830                 try_to_freeze();
 831                 set_current_state(TASK_INTERRUPTIBLE);
 832                 if (ps3fb.is_kicked) {
 833                         ps3fb.is_kicked = 0;
 834                         ps3fb_sync(info, 0);    /* single buffer */
 835                 }
 836                 schedule();
 837         }
 838         return 0;
 839 }
 840
 841 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
 842 {
 843         struct device *dev = ptr;
 844         u64 v1;
 845         int status;
 846         struct display_head *head = &ps3fb.dinfo->display_head[1];
 847
 848         status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
 849         if (status) {
 850                 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
 851                         status);
 852                 return IRQ_NONE;
 853         }
 854
 855         if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
 856                 /* VSYNC */
 857                 ps3fb.vblank_count = head->vblank_count;
 858                 if (ps3fb.task && !ps3fb.is_blanked &&
 859                     !atomic_read(&ps3fb.ext_flip)) {
 860                         ps3fb.is_kicked = 1;
 861                         wake_up_process(ps3fb.task);
 862                 }
 863                 wake_up_interruptible(&ps3fb.wait_vsync);
 864         }
 865
 866         return IRQ_HANDLED;
 867 }
 868
 869
 870 static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo,
 871                                 struct device *dev)
 872 {
 873         int error;
 874
 875         dev_dbg(dev, "version_driver:%x\n", dinfo->version_driver);
 876         dev_dbg(dev, "irq outlet:%x\n", dinfo->irq.irq_outlet);
 877         dev_dbg(dev,
 878                 "version_gpu: %x memory_size: %x ch: %x core_freq: %d "
 879                 "mem_freq:%d\n",
 880                 dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
 881                 dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
 882
 883         if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
 884                 dev_err(dev, "%s: version_driver err:%x\n", __func__,
 885                         dinfo->version_driver);
 886                 return -EINVAL;
 887         }
 888
 889         error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
 890                                    &ps3fb.irq_no);
 891         if (error) {
 892                 dev_err(dev, "%s: ps3_alloc_irq failed %d\n", __func__, error);
 893                 return error;
 894         }
 895
 896         error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
 897                             DEVICE_NAME, dev);
 898         if (error) {
 899                 dev_err(dev, "%s: request_irq failed %d\n", __func__, error);
 900                 ps3_irq_plug_destroy(ps3fb.irq_no);
 901                 return error;
 902         }
 903
 904         dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
 905                           (1 << GPU_INTR_STATUS_FLIP_1);
 906         return 0;
 907 }
 908
 909 static int ps3fb_xdr_settings(u64 xdr_lpar, struct device *dev)
 910 {
 911         int status;
 912
 913         status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
 914                                        xdr_lpar, ps3fb_videomemory.size, 0);
 915         if (status) {
 916                 dev_err(dev, "%s: lv1_gpu_context_iomap failed: %d\n",
 917                         __func__, status);
 918                 return -ENXIO;
 919         }
 920         dev_dbg(dev,
 921                 "video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
 922                 ps3fb_videomemory.address, ps3fb.xdr_ea, GPU_IOIF, xdr_lpar,
 923                 virt_to_abs(ps3fb.xdr_ea), ps3fb_videomemory.size);
 924
 925         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 926                                            L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
 927                                            xdr_lpar + ps3fb.xdr_size,
 928                                            GPU_CMD_BUF_SIZE,
 929                                            GPU_IOIF + ps3fb.xdr_size, 0);
 930         if (status) {
 931                 dev_err(dev,
 932                         "%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
 933                         __func__, status);
 934                 return -ENXIO;
 935         }
 936         return 0;
 937 }
 938
 939 static struct fb_ops ps3fb_ops = {
 940         .fb_open        = ps3fb_open,
 941         .fb_release     = ps3fb_release,
 942         .fb_read        = fb_sys_read,
 943         .fb_write       = fb_sys_write,
 944         .fb_check_var   = ps3fb_check_var,
 945         .fb_set_par     = ps3fb_set_par,
 946         .fb_setcolreg   = ps3fb_setcolreg,
 947         .fb_fillrect    = sys_fillrect,
 948         .fb_copyarea    = sys_copyarea,
 949         .fb_imageblit   = sys_imageblit,
 950         .fb_mmap        = ps3fb_mmap,
 951         .fb_blank       = ps3fb_blank,
 952         .fb_ioctl       = ps3fb_ioctl,
 953         .fb_compat_ioctl = ps3fb_ioctl
 954 };
 955
 956 static struct fb_fix_screeninfo ps3fb_fix __initdata = {
 957         .id =           DEVICE_NAME,
 958         .type =         FB_TYPE_PACKED_PIXELS,
 959         .visual =       FB_VISUAL_TRUECOLOR,
 960         .accel =        FB_ACCEL_NONE,
 961 };
 962
 963 static int ps3fb_set_sync(struct device *dev)
 964 {
 965         int status;
 966
 967 #ifdef HEAD_A
 968         status = lv1_gpu_context_attribute(0x0,
 969                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
 970                                            0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
 971         if (status) {
 972                 dev_err(dev,
 973                         "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
 974                         "%d\n",
 975                         __func__, status);
 976                 return -1;
 977         }
 978 #endif
 979 #ifdef HEAD_B
 980         status = lv1_gpu_context_attribute(0x0,
 981                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
 982                                            1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
 983
 984         if (status) {
 985                 dev_err(dev,
 986                         "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
 987                         "%d\n",
 988                         __func__, status);
 989                 return -1;
 990         }
 991 #endif
 992         return 0;
 993 }
 994
 995 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
 996 {
 997         struct fb_info *info;
 998         struct ps3fb_par *par;
 999         int retval = -ENOMEM;
1000         u32 xres, yres;
1001         u64 ddr_lpar = 0;
1002         u64 lpar_dma_control = 0;
1003         u64 lpar_driver_info = 0;
1004         u64 lpar_reports = 0;
1005         u64 lpar_reports_size = 0;
1006         u64 xdr_lpar;
1007         int status, res_index;
1008         unsigned long offset;
1009         struct task_struct *task;
1010
1011         status = ps3_open_hv_device(dev);
1012         if (status) {
1013                 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
1014                         __func__);
1015                 goto err;
1016         }
1017
1018         if (!ps3fb_mode)
1019                 ps3fb_mode = ps3av_get_mode();
1020         dev_dbg(&dev->core, "ps3av_mode:%d\n", ps3fb_mode);
1021
1022         if (ps3fb_mode > 0 &&
1023             !ps3av_video_mode2res(ps3fb_mode, &xres, &yres)) {
1024                 res_index = ps3fb_get_res_table(xres, yres, ps3fb_mode);
1025                 dev_dbg(&dev->core, "res_index:%d\n", res_index);
1026         } else
1027                 res_index = GPU_RES_INDEX;
1028
1029         atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1030         atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1031         init_waitqueue_head(&ps3fb.wait_vsync);
1032
1033         ps3fb_set_sync(&dev->core);
1034
1035         /* get gpu context handle */
1036         status = lv1_gpu_memory_allocate(DDR_SIZE, 0, 0, 0, 0,
1037                                          &ps3fb.memory_handle, &ddr_lpar);
1038         if (status) {
1039                 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1040                         __func__, status);
1041                 goto err;
1042         }
1043         dev_dbg(&dev->core, "ddr:lpar:0x%lx\n", ddr_lpar);
1044
1045         status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1046                                           &ps3fb.context_handle,
1047                                           &lpar_dma_control, &lpar_driver_info,
1048                                           &lpar_reports, &lpar_reports_size);
1049         if (status) {
1050                 dev_err(&dev->core,
1051                         "%s: lv1_gpu_context_attribute failed: %d\n", __func__,
1052                         status);
1053                 goto err_gpu_memory_free;
1054         }
1055
1056         /* vsync interrupt */
1057         ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
1058         if (!ps3fb.dinfo) {
1059                 dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1060                 goto err_gpu_context_free;
1061         }
1062
1063         retval = ps3fb_vsync_settings(ps3fb.dinfo, &dev->core);
1064         if (retval)
1065                 goto err_iounmap_dinfo;
1066
1067         /* XDR frame buffer */
1068         ps3fb.xdr_ea = ps3fb_videomemory.address;
1069         xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb.xdr_ea));
1070
1071         /* Clear memory to prevent kernel info leakage into userspace */
1072         memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
1073
1074         /* The GPU command buffer is at the end of video memory */
1075         ps3fb.xdr_size = ps3fb_videomemory.size - GPU_CMD_BUF_SIZE;
1076
1077         retval = ps3fb_xdr_settings(xdr_lpar, &dev->core);
1078         if (retval)
1079                 goto err_free_irq;
1080
1081         info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
1082         if (!info)
1083                 goto err_free_irq;
1084
1085         par = info->par;
1086         par->mode_id = ~ps3fb_mode;     /* != ps3fb_mode, to trigger change */
1087         par->new_mode_id = ps3fb_mode;
1088         par->res_index = res_index;
1089         par->num_frames = 1;
1090
1091         offset = VFB_OFF(res_index);
1092         info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
1093         info->fbops = &ps3fb_ops;
1094
1095         info->fix = ps3fb_fix;
1096         info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea) + offset;
1097         info->fix.smem_len = ps3fb.xdr_size - offset;
1098         info->pseudo_palette = par->pseudo_palette;
1099         info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST;
1100
1101         retval = fb_alloc_cmap(&info->cmap, 256, 0);
1102         if (retval < 0)
1103                 goto err_framebuffer_release;
1104
1105         if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1106                           ARRAY_SIZE(ps3fb_modedb),
1107                           ps3fb_default_mode(par->new_mode_id), 32)) {
1108                 retval = -EINVAL;
1109                 goto err_fb_dealloc;
1110         }
1111
1112         fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1113                                  &info->modelist);
1114
1115         retval = register_framebuffer(info);
1116         if (retval < 0)
1117                 goto err_fb_dealloc;
1118
1119         dev->core.driver_data = info;
1120
1121         dev_info(info->device, "%s %s, using %lu KiB of video memory\n",
1122                  dev_driver_string(info->dev), info->dev->bus_id,
1123                  ps3fb.xdr_size >> 10);
1124
1125         task = kthread_run(ps3fbd, info, DEVICE_NAME);
1126         if (IS_ERR(task)) {
1127                 retval = PTR_ERR(task);
1128                 goto err_unregister_framebuffer;
1129         }
1130
1131         ps3fb.task = task;
1132         ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb);
1133
1134         return 0;
1135
1136 err_unregister_framebuffer:
1137         unregister_framebuffer(info);
1138 err_fb_dealloc:
1139         fb_dealloc_cmap(&info->cmap);
1140 err_framebuffer_release:
1141         framebuffer_release(info);
1142 err_free_irq:
1143         free_irq(ps3fb.irq_no, dev);
1144         ps3_irq_plug_destroy(ps3fb.irq_no);
1145 err_iounmap_dinfo:
1146         iounmap((u8 __iomem *)ps3fb.dinfo);
1147 err_gpu_context_free:
1148         lv1_gpu_context_free(ps3fb.context_handle);
1149 err_gpu_memory_free:
1150         lv1_gpu_memory_free(ps3fb.memory_handle);
1151 err:
1152         return retval;
1153 }
1154
1155 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1156 {
1157         int status;
1158         struct fb_info *info = dev->core.driver_data;
1159
1160         dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1161
1162         ps3fb_flip_ctl(0, &ps3fb);      /* flip off */
1163         ps3fb.dinfo->irq.mask = 0;
1164
1165         if (info) {
1166                 unregister_framebuffer(info);
1167                 fb_dealloc_cmap(&info->cmap);
1168                 framebuffer_release(info);
1169         }
1170
1171         ps3av_register_flip_ctl(NULL, NULL);
1172         if (ps3fb.task) {
1173                 struct task_struct *task = ps3fb.task;
1174                 ps3fb.task = NULL;
1175                 kthread_stop(task);
1176         }
1177         if (ps3fb.irq_no) {
1178                 free_irq(ps3fb.irq_no, dev);
1179                 ps3_irq_plug_destroy(ps3fb.irq_no);
1180         }
1181         iounmap((u8 __iomem *)ps3fb.dinfo);
1182
1183         status = lv1_gpu_context_free(ps3fb.context_handle);
1184         if (status)
1185                 dev_dbg(&dev->core, "lv1_gpu_context_free failed: %d\n",
1186                         status);
1187
1188         status = lv1_gpu_memory_free(ps3fb.memory_handle);
1189         if (status)
1190                 dev_dbg(&dev->core, "lv1_gpu_memory_free failed: %d\n",
1191                         status);
1192
1193         ps3_close_hv_device(dev);
1194         dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1195
1196         return 0;
1197 }
1198
1199 static struct ps3_system_bus_driver ps3fb_driver = {
1200         .match_id       = PS3_MATCH_ID_GRAPHICS,
1201         .core.name      = DEVICE_NAME,
1202         .core.owner     = THIS_MODULE,
1203         .probe          = ps3fb_probe,
1204         .remove         = ps3fb_shutdown,
1205         .shutdown       = ps3fb_shutdown,
1206 };
1207
1208 static int __init ps3fb_setup(void)
1209 {
1210         char *options;
1211
1212 #ifdef MODULE
1213         return 0;
1214 #endif
1215
1216         if (fb_get_options(DEVICE_NAME, &options))
1217                 return -ENXIO;
1218
1219         if (!options || !*options)
1220                 return 0;
1221
1222         while (1) {
1223                 char *this_opt = strsep(&options, ",");
1224
1225                 if (!this_opt)
1226                         break;
1227                 if (!*this_opt)
1228                         continue;
1229                 if (!strncmp(this_opt, "mode:", 5))
1230                         ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1231                 else
1232                         mode_option = this_opt;
1233         }
1234         return 0;
1235 }
1236
1237 static int __init ps3fb_init(void)
1238 {
1239         if (!ps3fb_videomemory.address ||  ps3fb_setup())
1240                 return -ENXIO;
1241
1242         return ps3_system_bus_driver_register(&ps3fb_driver);
1243 }
1244
1245 static void __exit ps3fb_exit(void)
1246 {
1247         pr_debug(" -> %s:%d\n", __func__, __LINE__);
1248         ps3_system_bus_driver_unregister(&ps3fb_driver);
1249         pr_debug(" <- %s:%d\n", __func__, __LINE__);
1250 }
1251
1252 module_init(ps3fb_init);
1253 module_exit(ps3fb_exit);
1254
1255 MODULE_LICENSE("GPL");
1256 MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1257 MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1258 MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);