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 <linux/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 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC    0x101
  52 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP    0x102
  53 #define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP        0x600
  54 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT         0x601
  55 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC    0x602
  56
  57 #define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION       (1ULL << 32)
  58
  59 #define L1GPU_DISPLAY_SYNC_HSYNC                1
  60 #define L1GPU_DISPLAY_SYNC_VSYNC                2
  61
  62 #define DDR_SIZE                                (0)     /* used no ddr */
  63 #define GPU_OFFSET                              (64 * 1024)
  64 #define GPU_IOIF                                (0x0d000000UL)
  65
  66 #define PS3FB_FULL_MODE_BIT                     0x80
  67
  68 #define GPU_INTR_STATUS_VSYNC_0                 0       /* vsync on head A */
  69 #define GPU_INTR_STATUS_VSYNC_1                 1       /* vsync on head B */
  70 #define GPU_INTR_STATUS_FLIP_0                  3       /* flip head A */
  71 #define GPU_INTR_STATUS_FLIP_1                  4       /* flip head B */
  72 #define GPU_INTR_STATUS_QUEUE_0                 5       /* queue head A */
  73 #define GPU_INTR_STATUS_QUEUE_1                 6       /* queue head B */
  74
  75 #define GPU_DRIVER_INFO_VERSION                 0x211
  76
  77 /* gpu internals */
  78 struct display_head {
  79         u64 be_time_stamp;
  80         u32 status;
  81         u32 offset;
  82         u32 res1;
  83         u32 res2;
  84         u32 field;
  85         u32 reserved1;
  86
  87         u64 res3;
  88         u32 raster;
  89
  90         u64 vblank_count;
  91         u32 field_vsync;
  92         u32 reserved2;
  93 };
  94
  95 struct gpu_irq {
  96         u32 irq_outlet;
  97         u32 status;
  98         u32 mask;
  99         u32 video_cause;
 100         u32 graph_cause;
 101         u32 user_cause;
 102
 103         u32 res1;
 104         u64 res2;
 105
 106         u32 reserved[4];
 107 };
 108
 109 struct gpu_driver_info {
 110         u32 version_driver;
 111         u32 version_gpu;
 112         u32 memory_size;
 113         u32 hardware_channel;
 114
 115         u32 nvcore_frequency;
 116         u32 memory_frequency;
 117
 118         u32 reserved[1063];
 119         struct display_head display_head[8];
 120         struct gpu_irq irq;
 121 };
 122
 123 struct ps3fb_priv {
 124         unsigned int irq_no;
 125
 126         u64 context_handle, memory_handle;
 127         void *xdr_ea;
 128         struct gpu_driver_info *dinfo;
 129         u32 res_index;
 130
 131         u64 vblank_count;       /* frame count */
 132         wait_queue_head_t wait_vsync;
 133
 134         u32 num_frames;         /* num of frame buffers */
 135         atomic_t ext_flip;      /* on/off flip with vsync */
 136         atomic_t f_count;       /* fb_open count */
 137         int is_blanked;
 138         int is_kicked;
 139         struct task_struct *task;
 140 };
 141 static struct ps3fb_priv ps3fb;
 142
 143 struct ps3fb_res_table {
 144         u32 xres;
 145         u32 yres;
 146         u32 xoff;
 147         u32 yoff;
 148         u32 type;
 149 };
 150 #define PS3FB_RES_FULL 1
 151 static const struct ps3fb_res_table ps3fb_res[] = {
 152         /* res_x,y   margin_x,y  full */
 153         {  720,  480,  72,  48 , 0},
 154         {  720,  576,  72,  58 , 0},
 155         { 1280,  720,  78,  38 , 0},
 156         { 1920, 1080, 116,  58 , 0},
 157         /* full mode */
 158         {  720,  480,   0,   0 , PS3FB_RES_FULL},
 159         {  720,  576,   0,   0 , PS3FB_RES_FULL},
 160         { 1280,  720,   0,   0 , PS3FB_RES_FULL},
 161         { 1920, 1080,   0,   0 , PS3FB_RES_FULL},
 162         /* vesa: normally full mode */
 163         { 1280,  768,   0,   0 , 0},
 164         { 1280, 1024,   0,   0 , 0},
 165         { 1920, 1200,   0,   0 , 0},
 166         {    0,    0,   0,   0 , 0} };
 167
 168 /* default resolution */
 169 #define GPU_RES_INDEX   0               /* 720 x 480 */
 170
 171 static const struct fb_videomode ps3fb_modedb[] = {
 172     /* 60 Hz broadcast modes (modes "1" to "5") */
 173     {
 174         /* 480i */
 175         "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
 176         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 177     },    {
 178         /* 480p */
 179         "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
 180         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 181     },    {
 182         /* 720p */
 183         "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
 184         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 185     },    {
 186         /* 1080i */
 187         "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
 188         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 189     },    {
 190         /* 1080p */
 191         "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
 192         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 193     },
 194
 195     /* 50 Hz broadcast modes (modes "6" to "10") */
 196     {
 197         /* 576i */
 198         "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
 199         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 200     },    {
 201         /* 576p */
 202         "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
 203         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 204     },    {
 205         /* 720p */
 206         "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
 207         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 208     },    {
 209         /* 1080 */
 210         "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
 211         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 212     },    {
 213         /* 1080p */
 214         "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
 215         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 216     },
 217
 218     /* VESA modes (modes "11" to "13") */
 219     {
 220         /* WXGA */
 221         "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
 222         0, FB_VMODE_NONINTERLACED,
 223         FB_MODE_IS_VESA
 224     }, {
 225         /* SXGA */
 226         "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
 227         FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
 228         FB_MODE_IS_VESA
 229     }, {
 230         /* WUXGA */
 231         "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
 232         FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
 233         FB_MODE_IS_VESA
 234     },
 235
 236     /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
 237     {
 238         /* 480if */
 239         "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
 240         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 241     }, {
 242         /* 480pf */
 243         "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
 244         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 245     }, {
 246         /* 720pf */
 247         "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
 248         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 249     }, {
 250         /* 1080if */
 251         "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
 252         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 253     }, {
 254         /* 1080pf */
 255         "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
 256         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 257     },
 258
 259     /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
 260     {
 261         /* 576if */
 262         "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
 263         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 264     }, {
 265         /* 576pf */
 266         "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
 267         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 268     }, {
 269         /* 720pf */
 270         "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
 271         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 272     }, {
 273         /* 1080if */
 274         "1080f", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
 275         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 276     }, {
 277         /* 1080pf */
 278         "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
 279         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 280     }
 281 };
 282
 283
 284 #define HEAD_A
 285 #define HEAD_B
 286
 287 #define X_OFF(i)        (ps3fb_res[i].xoff)     /* left/right margin (pixel) */
 288 #define Y_OFF(i)        (ps3fb_res[i].yoff)     /* top/bottom margin (pixel) */
 289 #define WIDTH(i)        (ps3fb_res[i].xres)     /* width of FB */
 290 #define HEIGHT(i)       (ps3fb_res[i].yres)     /* height of FB */
 291 #define BPP     4               /* number of bytes per pixel */
 292 #define VP_OFF(i)       (WIDTH(i) * Y_OFF(i) * BPP + X_OFF(i) * BPP)
 293 #define FB_OFF(i)       (GPU_OFFSET - VP_OFF(i) % GPU_OFFSET)
 294
 295 static int ps3fb_mode;
 296 module_param(ps3fb_mode, int, 0);
 297
 298 static char *mode_option __devinitdata;
 299
 300 static int ps3fb_get_res_table(u32 xres, u32 yres, int mode)
 301 {
 302         int full_mode;
 303         unsigned int i;
 304         u32 x, y, f;
 305
 306         full_mode = (mode & PS3FB_FULL_MODE_BIT) ? PS3FB_RES_FULL : 0;
 307         for (i = 0;; i++) {
 308                 x = ps3fb_res[i].xres;
 309                 y = ps3fb_res[i].yres;
 310                 f = ps3fb_res[i].type;
 311
 312                 if (!x) {
 313                         pr_debug("ERROR: ps3fb_get_res_table()\n");
 314                         return -1;
 315                 }
 316
 317                 if (full_mode == PS3FB_RES_FULL && f != PS3FB_RES_FULL)
 318                         continue;
 319
 320                 if (x == xres && (yres == 0 || y == yres))
 321                         break;
 322
 323                 x = x - 2 * ps3fb_res[i].xoff;
 324                 y = y - 2 * ps3fb_res[i].yoff;
 325                 if (x == xres && (yres == 0 || y == yres))
 326                         break;
 327         }
 328         return i;
 329 }
 330
 331 static unsigned int ps3fb_find_mode(const struct fb_var_screeninfo *var,
 332                                     u32 *line_length)
 333 {
 334         unsigned int i, mode;
 335
 336         for (i = 0; i < ARRAY_SIZE(ps3fb_modedb); i++)
 337                 if (var->xres == ps3fb_modedb[i].xres &&
 338                     var->yres == ps3fb_modedb[i].yres &&
 339                     var->pixclock == ps3fb_modedb[i].pixclock &&
 340                     var->hsync_len == ps3fb_modedb[i].hsync_len &&
 341                     var->vsync_len == ps3fb_modedb[i].vsync_len &&
 342                     var->left_margin == ps3fb_modedb[i].left_margin &&
 343                     var->right_margin == ps3fb_modedb[i].right_margin &&
 344                     var->upper_margin == ps3fb_modedb[i].upper_margin &&
 345                     var->lower_margin == ps3fb_modedb[i].lower_margin &&
 346                     var->sync == ps3fb_modedb[i].sync &&
 347                     (var->vmode & FB_VMODE_MASK) == ps3fb_modedb[i].vmode) {
 348                         /* Cropped broadcast modes use the full line_length */
 349                         *line_length =
 350                             ps3fb_modedb[i < 10 ? i + 13 : i].xres * 4;
 351                         /* Full broadcast modes have the full mode bit set */
 352                         mode = i > 12 ? (i - 12) | PS3FB_FULL_MODE_BIT : i + 1;
 353
 354                         pr_debug("ps3fb_find_mode: mode %u\n", mode);
 355                         return mode;
 356                 }
 357
 358         pr_debug("ps3fb_find_mode: mode not found\n");
 359         return 0;
 360
 361 }
 362
 363 static const struct fb_videomode *ps3fb_default_mode(void)
 364 {
 365         u32 mode = ps3fb_mode & PS3AV_MODE_MASK;
 366         u32 flags;
 367
 368         if (mode < 1 || mode > 13)
 369                 return NULL;
 370
 371         flags = ps3fb_mode & ~PS3AV_MODE_MASK;
 372
 373         if (mode <= 10 && flags & PS3FB_FULL_MODE_BIT) {
 374                 /* Full broadcast mode */
 375                 return &ps3fb_modedb[mode + 12];
 376         }
 377
 378         return &ps3fb_modedb[mode - 1];
 379 }
 380
 381 static int ps3fb_sync(struct fb_info *info, u32 frame)
 382 {
 383         int i, status;
 384         u32 xres, yres;
 385         u64 fb_ioif, offset;
 386
 387         i = ps3fb.res_index;
 388         xres = ps3fb_res[i].xres;
 389         yres = ps3fb_res[i].yres;
 390
 391         if (frame > ps3fb.num_frames - 1) {
 392                 dev_dbg(info->device, "%s: invalid frame number (%u)\n",
 393                         __func__, frame);
 394                 return -EINVAL;
 395         }
 396         offset = xres * yres * BPP * frame;
 397
 398         fb_ioif = GPU_IOIF + FB_OFF(i) + offset;
 399         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 400                                            L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
 401                                            offset, fb_ioif,
 402                                            L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
 403                                            (xres << 16) | yres,
 404                                            xres * BPP); /* line_length */
 405         if (status)
 406                 dev_err(info->device,
 407                         "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
 408                         __func__, status);
 409 #ifdef HEAD_A
 410         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 411                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
 412                                            0, offset, 0, 0);
 413         if (status)
 414                 dev_err(info->device,
 415                         "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
 416                         __func__, status);
 417 #endif
 418 #ifdef HEAD_B
 419         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 420                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
 421                                            1, offset, 0, 0);
 422         if (status)
 423                 dev_err(info->device,
 424                         "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
 425                         __func__, status);
 426 #endif
 427         return 0;
 428 }
 429
 430
 431 static int ps3fb_open(struct fb_info *info, int user)
 432 {
 433         atomic_inc(&ps3fb.f_count);
 434         return 0;
 435 }
 436
 437 static int ps3fb_release(struct fb_info *info, int user)
 438 {
 439         if (atomic_dec_and_test(&ps3fb.f_count)) {
 440                 if (atomic_read(&ps3fb.ext_flip)) {
 441                         atomic_set(&ps3fb.ext_flip, 0);
 442                         ps3fb_sync(info, 0);    /* single buffer */
 443                 }
 444         }
 445         return 0;
 446 }
 447
 448     /*
 449      *  Setting the video mode has been split into two parts.
 450      *  First part, xxxfb_check_var, must not write anything
 451      *  to hardware, it should only verify and adjust var.
 452      *  This means it doesn't alter par but it does use hardware
 453      *  data from it to check this var.
 454      */
 455
 456 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 457 {
 458         u32 line_length;
 459         int mode;
 460         int i;
 461
 462         dev_dbg(info->device, "var->xres:%u info->var.xres:%u\n", var->xres,
 463                 info->var.xres);
 464         dev_dbg(info->device, "var->yres:%u info->var.yres:%u\n", var->yres,
 465                 info->var.yres);
 466
 467         /* FIXME For now we do exact matches only */
 468         mode = ps3fb_find_mode(var, &line_length);
 469         if (!mode)
 470                 return -EINVAL;
 471
 472         /*
 473          *  FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
 474          *  as FB_VMODE_SMOOTH_XPAN is only used internally
 475          */
 476
 477         if (var->vmode & FB_VMODE_CONUPDATE) {
 478                 var->vmode |= FB_VMODE_YWRAP;
 479                 var->xoffset = info->var.xoffset;
 480                 var->yoffset = info->var.yoffset;
 481         }
 482
 483         /* Virtual screen and panning are not supported */
 484         if (var->xres_virtual > var->xres || var->yres_virtual > var->yres ||
 485             var->xoffset || var->yoffset) {
 486                 dev_dbg(info->device,
 487                         "Virtual screen and panning are not supported\n");
 488                 return -EINVAL;
 489         }
 490
 491         var->xres_virtual = var->xres;
 492         var->yres_virtual = var->yres;
 493
 494         /* We support ARGB8888 only */
 495         if (var->bits_per_pixel > 32 || var->grayscale ||
 496             var->red.offset > 16 || var->green.offset > 8 ||
 497             var->blue.offset > 0 || var->transp.offset > 24 ||
 498             var->red.length > 8 || var->green.length > 8 ||
 499             var->blue.length > 8 || var->transp.length > 8 ||
 500             var->red.msb_right || var->green.msb_right ||
 501             var->blue.msb_right || var->transp.msb_right || var->nonstd) {
 502                 dev_dbg(info->device, "We support ARGB8888 only\n");
 503                 return -EINVAL;
 504         }
 505
 506         var->bits_per_pixel = 32;
 507         var->red.offset = 16;
 508         var->green.offset = 8;
 509         var->blue.offset = 0;
 510         var->transp.offset = 24;
 511         var->red.length = 8;
 512         var->green.length = 8;
 513         var->blue.length = 8;
 514         var->transp.length = 8;
 515         var->red.msb_right = 0;
 516         var->green.msb_right = 0;
 517         var->blue.msb_right = 0;
 518         var->transp.msb_right = 0;
 519
 520         /* Rotation is not supported */
 521         if (var->rotate) {
 522                 dev_dbg(info->device, "Rotation is not supported\n");
 523                 return -EINVAL;
 524         }
 525
 526         /* Memory limit */
 527         i = ps3fb_get_res_table(var->xres, var->yres, mode);
 528         if (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP > ps3fb_videomemory.size) {
 529                 dev_dbg(info->device, "Not enough memory\n");
 530                 return -ENOMEM;
 531         }
 532
 533         var->height = -1;
 534         var->width = -1;
 535
 536         return 0;
 537 }
 538
 539     /*
 540      * This routine actually sets the video mode.
 541      */
 542
 543 static int ps3fb_set_par(struct fb_info *info)
 544 {
 545         unsigned int mode;
 546         int i;
 547         unsigned long offset;
 548
 549         dev_dbg(info->device, "xres:%d xv:%d yres:%d yv:%d clock:%d\n",
 550                 info->var.xres, info->var.xres_virtual,
 551                 info->var.yres, info->var.yres_virtual, info->var.pixclock);
 552
 553         mode = ps3fb_find_mode(&info->var, &info->fix.line_length);
 554         if (!mode)
 555                 return -EINVAL;
 556
 557         i = ps3fb_get_res_table(info->var.xres, info->var.yres, mode);
 558         ps3fb.res_index = i;
 559
 560         offset = FB_OFF(i) + VP_OFF(i);
 561         info->fix.smem_len = ps3fb_videomemory.size - offset;
 562         info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
 563         memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
 564
 565         ps3fb.num_frames = ps3fb_videomemory.size/
 566                            (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP);
 567
 568         /* Keep the special bits we cannot set using fb_var_screeninfo */
 569         ps3fb_mode = (ps3fb_mode & ~PS3AV_MODE_MASK) | mode;
 570
 571         if (ps3av_set_video_mode(ps3fb_mode))
 572                 return -EINVAL;
 573
 574         return 0;
 575 }
 576
 577     /*
 578      *  Set a single color register. The values supplied are already
 579      *  rounded down to the hardware's capabilities (according to the
 580      *  entries in the var structure). Return != 0 for invalid regno.
 581      */
 582
 583 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
 584                            unsigned int green, unsigned int blue,
 585                            unsigned int transp, struct fb_info *info)
 586 {
 587         if (regno >= 16)
 588                 return 1;
 589
 590         red >>= 8;
 591         green >>= 8;
 592         blue >>= 8;
 593         transp >>= 8;
 594
 595         ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
 596                                                green << 8 | blue;
 597         return 0;
 598 }
 599
 600     /*
 601      *  As we have a virtual frame buffer, we need our own mmap function
 602      */
 603
 604 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 605 {
 606         unsigned long size, offset;
 607         int i;
 608
 609         i = ps3fb_get_res_table(info->var.xres, info->var.yres, ps3fb_mode);
 610         if (i == -1)
 611                 return -EINVAL;
 612
 613         size = vma->vm_end - vma->vm_start;
 614         offset = vma->vm_pgoff << PAGE_SHIFT;
 615         if (offset + size > info->fix.smem_len)
 616                 return -EINVAL;
 617
 618         offset += info->fix.smem_start + FB_OFF(i) + VP_OFF(i);
 619         if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
 620                             size, vma->vm_page_prot))
 621                 return -EAGAIN;
 622
 623         dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
 624                 offset, vma->vm_start);
 625         return 0;
 626 }
 627
 628     /*
 629      * Blank the display
 630      */
 631
 632 static int ps3fb_blank(int blank, struct fb_info *info)
 633 {
 634         int retval;
 635
 636         dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
 637         switch (blank) {
 638         case FB_BLANK_POWERDOWN:
 639         case FB_BLANK_HSYNC_SUSPEND:
 640         case FB_BLANK_VSYNC_SUSPEND:
 641         case FB_BLANK_NORMAL:
 642                 retval = ps3av_video_mute(1);   /* mute on */
 643                 if (!retval)
 644                         ps3fb.is_blanked = 1;
 645                 break;
 646
 647         default:                /* unblank */
 648                 retval = ps3av_video_mute(0);   /* mute off */
 649                 if (!retval)
 650                         ps3fb.is_blanked = 0;
 651                 break;
 652         }
 653         return retval;
 654 }
 655
 656 static int ps3fb_get_vblank(struct fb_vblank *vblank)
 657 {
 658         memset(vblank, 0, sizeof(&vblank));
 659         vblank->flags = FB_VBLANK_HAVE_VSYNC;
 660         return 0;
 661 }
 662
 663 int ps3fb_wait_for_vsync(u32 crtc)
 664 {
 665         int ret;
 666         u64 count;
 667
 668         count = ps3fb.vblank_count;
 669         ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
 670                                                count != ps3fb.vblank_count,
 671                                                HZ / 10);
 672         if (!ret)
 673                 return -ETIMEDOUT;
 674
 675         return 0;
 676 }
 677
 678 EXPORT_SYMBOL_GPL(ps3fb_wait_for_vsync);
 679
 680 void ps3fb_flip_ctl(int on, void *data)
 681 {
 682         struct ps3fb_priv *priv = data;
 683         if (on)
 684                 atomic_dec_if_positive(&priv->ext_flip);
 685         else
 686                 atomic_inc(&priv->ext_flip);
 687 }
 688
 689
 690     /*
 691      * ioctl
 692      */
 693
 694 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 695                        unsigned long arg)
 696 {
 697         void __user *argp = (void __user *)arg;
 698         u32 val, old_mode;
 699         int retval = -EFAULT;
 700
 701         switch (cmd) {
 702         case FBIOGET_VBLANK:
 703                 {
 704                         struct fb_vblank vblank;
 705                         dev_dbg(info->device, "FBIOGET_VBLANK:\n");
 706                         retval = ps3fb_get_vblank(&vblank);
 707                         if (retval)
 708                                 break;
 709
 710                         if (copy_to_user(argp, &vblank, sizeof(vblank)))
 711                                 retval = -EFAULT;
 712                         break;
 713                 }
 714
 715         case FBIO_WAITFORVSYNC:
 716                 {
 717                         u32 crt;
 718                         dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
 719                         if (get_user(crt, (u32 __user *) arg))
 720                                 break;
 721
 722                         retval = ps3fb_wait_for_vsync(crt);
 723                         break;
 724                 }
 725
 726         case PS3FB_IOCTL_SETMODE:
 727                 {
 728                         const struct fb_videomode *mode;
 729                         struct fb_var_screeninfo var;
 730
 731                         if (copy_from_user(&val, argp, sizeof(val)))
 732                                 break;
 733
 734                         if (!(val & PS3AV_MODE_MASK)) {
 735                                 u32 id = ps3av_get_auto_mode();
 736                                 if (id > 0)
 737                                         val = (val & ~PS3AV_MODE_MASK) | id;
 738                         }
 739                         dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
 740                         retval = -EINVAL;
 741                         old_mode = ps3fb_mode;
 742                         ps3fb_mode = val;
 743                         mode = ps3fb_default_mode();
 744                         if (mode) {
 745                                 var = info->var;
 746                                 fb_videomode_to_var(&var, mode);
 747                                 acquire_console_sem();
 748                                 info->flags |= FBINFO_MISC_USEREVENT;
 749                                 /* Force, in case only special bits changed */
 750                                 var.activate |= FB_ACTIVATE_FORCE;
 751                                 retval = fb_set_var(info, &var);
 752                                 info->flags &= ~FBINFO_MISC_USEREVENT;
 753                                 release_console_sem();
 754                         }
 755                         if (retval)
 756                                 ps3fb_mode = old_mode;
 757                         break;
 758                 }
 759
 760         case PS3FB_IOCTL_GETMODE:
 761                 val = ps3av_get_mode();
 762                 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
 763                 if (!copy_to_user(argp, &val, sizeof(val)))
 764                         retval = 0;
 765                 break;
 766
 767         case PS3FB_IOCTL_SCREENINFO:
 768                 {
 769                         struct ps3fb_ioctl_res res;
 770                         int i = ps3fb.res_index;
 771                         dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
 772                         res.xres = ps3fb_res[i].xres;
 773                         res.yres = ps3fb_res[i].yres;
 774                         res.xoff = ps3fb_res[i].xoff;
 775                         res.yoff = ps3fb_res[i].yoff;
 776                         res.num_frames = ps3fb.num_frames;
 777                         if (!copy_to_user(argp, &res, sizeof(res)))
 778                                 retval = 0;
 779                         break;
 780                 }
 781
 782         case PS3FB_IOCTL_ON:
 783                 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
 784                 atomic_inc(&ps3fb.ext_flip);
 785                 retval = 0;
 786                 break;
 787
 788         case PS3FB_IOCTL_OFF:
 789                 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
 790                 atomic_dec_if_positive(&ps3fb.ext_flip);
 791                 retval = 0;
 792                 break;
 793
 794         case PS3FB_IOCTL_FSEL:
 795                 if (copy_from_user(&val, argp, sizeof(val)))
 796                         break;
 797
 798                 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
 799                 retval = ps3fb_sync(info, val);
 800                 break;
 801
 802         default:
 803                 retval = -ENOIOCTLCMD;
 804                 break;
 805         }
 806         return retval;
 807 }
 808
 809 static int ps3fbd(void *arg)
 810 {
 811         struct fb_info *info = arg;
 812
 813         set_freezable();
 814         while (!kthread_should_stop()) {
 815                 try_to_freeze();
 816                 set_current_state(TASK_INTERRUPTIBLE);
 817                 if (ps3fb.is_kicked) {
 818                         ps3fb.is_kicked = 0;
 819                         ps3fb_sync(info, 0);    /* single buffer */
 820                 }
 821                 schedule();
 822         }
 823         return 0;
 824 }
 825
 826 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
 827 {
 828         struct device *dev = ptr;
 829         u64 v1;
 830         int status;
 831         struct display_head *head = &ps3fb.dinfo->display_head[1];
 832
 833         status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
 834         if (status) {
 835                 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
 836                         status);
 837                 return IRQ_NONE;
 838         }
 839
 840         if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
 841                 /* VSYNC */
 842                 ps3fb.vblank_count = head->vblank_count;
 843                 if (ps3fb.task && !ps3fb.is_blanked &&
 844                     !atomic_read(&ps3fb.ext_flip)) {
 845                         ps3fb.is_kicked = 1;
 846                         wake_up_process(ps3fb.task);
 847                 }
 848                 wake_up_interruptible(&ps3fb.wait_vsync);
 849         }
 850
 851         return IRQ_HANDLED;
 852 }
 853
 854
 855 static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo,
 856                                 struct device *dev)
 857 {
 858         int error;
 859
 860         dev_dbg(dev, "version_driver:%x\n", dinfo->version_driver);
 861         dev_dbg(dev, "irq outlet:%x\n", dinfo->irq.irq_outlet);
 862         dev_dbg(dev,
 863                 "version_gpu: %x memory_size: %x ch: %x core_freq: %d "
 864                 "mem_freq:%d\n",
 865                 dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
 866                 dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
 867
 868         if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
 869                 dev_err(dev, "%s: version_driver err:%x\n", __func__,
 870                         dinfo->version_driver);
 871                 return -EINVAL;
 872         }
 873
 874         error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
 875                                    &ps3fb.irq_no);
 876         if (error) {
 877                 dev_err(dev, "%s: ps3_alloc_irq failed %d\n", __func__, 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                 dev_err(dev, "%s: request_irq failed %d\n", __func__, error);
 885                 ps3_irq_plug_destroy(ps3fb.irq_no);
 886                 return error;
 887         }
 888
 889         dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
 890                           (1 << GPU_INTR_STATUS_FLIP_1);
 891         return 0;
 892 }
 893
 894 static int ps3fb_xdr_settings(u64 xdr_lpar, struct device *dev)
 895 {
 896         int status;
 897
 898         status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
 899                                        xdr_lpar, ps3fb_videomemory.size, 0);
 900         if (status) {
 901                 dev_err(dev, "%s: lv1_gpu_context_iomap failed: %d\n",
 902                         __func__, status);
 903                 return -ENXIO;
 904         }
 905         dev_dbg(dev,
 906                 "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                 dev_err(dev,
 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(struct device *dev)
 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                 dev_err(dev,
 957                         "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
 958                         "%d\n",
 959                         __func__, status);
 960                 return -1;
 961         }
 962 #endif
 963 #ifdef HEAD_B
 964         status = lv1_gpu_context_attribute(0x0,
 965                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
 966                                            1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
 967
 968         if (status) {
 969                 dev_err(dev,
 970                         "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
 971                         "%d\n",
 972                         __func__, status);
 973                 return -1;
 974         }
 975 #endif
 976         return 0;
 977 }
 978
 979 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
 980 {
 981         struct fb_info *info;
 982         int retval = -ENOMEM;
 983         u32 xres, yres;
 984         u64 ddr_lpar = 0;
 985         u64 lpar_dma_control = 0;
 986         u64 lpar_driver_info = 0;
 987         u64 lpar_reports = 0;
 988         u64 lpar_reports_size = 0;
 989         u64 xdr_lpar;
 990         int status;
 991         unsigned long offset;
 992         struct task_struct *task;
 993
 994         status = ps3_open_hv_device(dev);
 995         if (status) {
 996                 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
 997                         __func__);
 998                 goto err;
 999         }
1000
1001         if (!ps3fb_mode)
1002                 ps3fb_mode = ps3av_get_mode();
1003         dev_dbg(&dev->core, "ps3av_mode:%d\n", ps3fb_mode);
1004
1005         if (ps3fb_mode > 0 &&
1006             !ps3av_video_mode2res(ps3fb_mode, &xres, &yres)) {
1007                 ps3fb.res_index = ps3fb_get_res_table(xres, yres, ps3fb_mode);
1008                 dev_dbg(&dev->core, "res_index:%d\n", ps3fb.res_index);
1009         } else
1010                 ps3fb.res_index = GPU_RES_INDEX;
1011
1012         atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1013         atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1014         init_waitqueue_head(&ps3fb.wait_vsync);
1015         ps3fb.num_frames = 1;
1016
1017         ps3fb_set_sync(&dev->core);
1018
1019         /* get gpu context handle */
1020         status = lv1_gpu_memory_allocate(DDR_SIZE, 0, 0, 0, 0,
1021                                          &ps3fb.memory_handle, &ddr_lpar);
1022         if (status) {
1023                 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1024                         __func__, status);
1025                 goto err;
1026         }
1027         dev_dbg(&dev->core, "ddr:lpar:0x%lx\n", ddr_lpar);
1028
1029         status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1030                                           &ps3fb.context_handle,
1031                                           &lpar_dma_control, &lpar_driver_info,
1032                                           &lpar_reports, &lpar_reports_size);
1033         if (status) {
1034                 dev_err(&dev->core,
1035                         "%s: lv1_gpu_context_attribute failed: %d\n", __func__,
1036                         status);
1037                 goto err_gpu_memory_free;
1038         }
1039
1040         /* vsync interrupt */
1041         ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
1042         if (!ps3fb.dinfo) {
1043                 dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1044                 goto err_gpu_context_free;
1045         }
1046
1047         retval = ps3fb_vsync_settings(ps3fb.dinfo, &dev->core);
1048         if (retval)
1049                 goto err_iounmap_dinfo;
1050
1051         /* xdr frame buffer */
1052         ps3fb.xdr_ea = ps3fb_videomemory.address;
1053         xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb.xdr_ea));
1054         retval = ps3fb_xdr_settings(xdr_lpar, &dev->core);
1055         if (retval)
1056                 goto err_free_irq;
1057
1058         /*
1059          * ps3fb must clear memory to prevent kernel info
1060          * leakage into userspace
1061          */
1062         memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
1063         info = framebuffer_alloc(sizeof(u32) * 16, &dev->core);
1064         if (!info)
1065                 goto err_free_irq;
1066
1067         offset = FB_OFF(ps3fb.res_index) + VP_OFF(ps3fb.res_index);
1068         info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
1069         info->fbops = &ps3fb_ops;
1070
1071         info->fix = ps3fb_fix;
1072         info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
1073         info->fix.smem_len = ps3fb_videomemory.size - offset;
1074         info->pseudo_palette = info->par;
1075         info->par = NULL;
1076         info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST;
1077
1078         retval = fb_alloc_cmap(&info->cmap, 256, 0);
1079         if (retval < 0)
1080                 goto err_framebuffer_release;
1081
1082         if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1083                           ARRAY_SIZE(ps3fb_modedb), ps3fb_default_mode(), 32)) {
1084                 retval = -EINVAL;
1085                 goto err_fb_dealloc;
1086         }
1087
1088         fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1089                                  &info->modelist);
1090
1091         retval = register_framebuffer(info);
1092         if (retval < 0)
1093                 goto err_fb_dealloc;
1094
1095         dev->core.driver_data = info;
1096
1097         dev_info(info->device, "%s %s, using %lu KiB of video memory\n",
1098                  dev_driver_string(info->dev), info->dev->bus_id,
1099                  ps3fb_videomemory.size >> 10);
1100
1101         task = kthread_run(ps3fbd, info, DEVICE_NAME);
1102         if (IS_ERR(task)) {
1103                 retval = PTR_ERR(task);
1104                 goto err_unregister_framebuffer;
1105         }
1106
1107         ps3fb.task = task;
1108         ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb);
1109
1110         return 0;
1111
1112 err_unregister_framebuffer:
1113         unregister_framebuffer(info);
1114 err_fb_dealloc:
1115         fb_dealloc_cmap(&info->cmap);
1116 err_framebuffer_release:
1117         framebuffer_release(info);
1118 err_free_irq:
1119         free_irq(ps3fb.irq_no, dev);
1120         ps3_irq_plug_destroy(ps3fb.irq_no);
1121 err_iounmap_dinfo:
1122         iounmap((u8 __iomem *)ps3fb.dinfo);
1123 err_gpu_context_free:
1124         lv1_gpu_context_free(ps3fb.context_handle);
1125 err_gpu_memory_free:
1126         lv1_gpu_memory_free(ps3fb.memory_handle);
1127 err:
1128         return retval;
1129 }
1130
1131 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1132 {
1133         int status;
1134         struct fb_info *info = dev->core.driver_data;
1135
1136         dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1137
1138         ps3fb_flip_ctl(0, &ps3fb);      /* flip off */
1139         ps3fb.dinfo->irq.mask = 0;
1140
1141         if (info) {
1142                 unregister_framebuffer(info);
1143                 fb_dealloc_cmap(&info->cmap);
1144                 framebuffer_release(info);
1145         }
1146
1147         ps3av_register_flip_ctl(NULL, NULL);
1148         if (ps3fb.task) {
1149                 struct task_struct *task = ps3fb.task;
1150                 ps3fb.task = NULL;
1151                 kthread_stop(task);
1152         }
1153         if (ps3fb.irq_no) {
1154                 free_irq(ps3fb.irq_no, dev);
1155                 ps3_irq_plug_destroy(ps3fb.irq_no);
1156         }
1157         iounmap((u8 __iomem *)ps3fb.dinfo);
1158
1159         status = lv1_gpu_context_free(ps3fb.context_handle);
1160         if (status)
1161                 dev_dbg(&dev->core, "lv1_gpu_context_free failed: %d\n",
1162                         status);
1163
1164         status = lv1_gpu_memory_free(ps3fb.memory_handle);
1165         if (status)
1166                 dev_dbg(&dev->core, "lv1_gpu_memory_free failed: %d\n",
1167                         status);
1168
1169         ps3_close_hv_device(dev);
1170         dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1171
1172         return 0;
1173 }
1174
1175 static struct ps3_system_bus_driver ps3fb_driver = {
1176         .match_id       = PS3_MATCH_ID_GRAPHICS,
1177         .core.name      = DEVICE_NAME,
1178         .core.owner     = THIS_MODULE,
1179         .probe          = ps3fb_probe,
1180         .remove         = ps3fb_shutdown,
1181         .shutdown       = ps3fb_shutdown,
1182 };
1183
1184 static int __init ps3fb_setup(void)
1185 {
1186         char *options;
1187
1188 #ifdef MODULE
1189         return 0;
1190 #endif
1191
1192         if (fb_get_options(DEVICE_NAME, &options))
1193                 return -ENXIO;
1194
1195         if (!options || !*options)
1196                 return 0;
1197
1198         while (1) {
1199                 char *this_opt = strsep(&options, ",");
1200
1201                 if (!this_opt)
1202                         break;
1203                 if (!*this_opt)
1204                         continue;
1205                 if (!strncmp(this_opt, "mode:", 5))
1206                         ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1207                 else
1208                         mode_option = this_opt;
1209         }
1210         return 0;
1211 }
1212
1213 static int __init ps3fb_init(void)
1214 {
1215         if (!ps3fb_videomemory.address ||  ps3fb_setup())
1216                 return -ENXIO;
1217
1218         return ps3_system_bus_driver_register(&ps3fb_driver);
1219 }
1220
1221 static void __exit ps3fb_exit(void)
1222 {
1223         pr_debug(" -> %s:%d\n", __func__, __LINE__);
1224         ps3_system_bus_driver_unregister(&ps3fb_driver);
1225         pr_debug(" <- %s:%d\n", __func__, __LINE__);
1226 }
1227
1228 module_init(ps3fb_init);
1229 module_exit(ps3fb_exit);
1230
1231 MODULE_LICENSE("GPL");
1232 MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1233 MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1234 MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);