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/interrupt.h>
  26 #include <linux/console.h>
  27 #include <linux/ioctl.h>
  28 #include <linux/kthread.h>
  29 #include <linux/freezer.h>
  30 #include <linux/uaccess.h>
  31 #include <linux/fb.h>
  32 #include <linux/init.h>
  33
  34 #include <asm/abs_addr.h>
  35 #include <asm/cell-regs.h>
  36 #include <asm/lv1call.h>
  37 #include <asm/ps3av.h>
  38 #include <asm/ps3fb.h>
  39 #include <asm/ps3.h>
  40 #include <asm/ps3gpu.h>
  41
  42
  43 #define DEVICE_NAME             "ps3fb"
  44
  45 #define GPU_CMD_BUF_SIZE                        (2 * 1024 * 1024)
  46 #define GPU_FB_START                            (64 * 1024)
  47 #define GPU_IOIF                                (0x0d000000UL)
  48 #define GPU_ALIGN_UP(x)                         _ALIGN_UP((x), 64)
  49 #define GPU_MAX_LINE_LENGTH                     (65536 - 64)
  50
  51 #define GPU_INTR_STATUS_VSYNC_0                 0       /* vsync on head A */
  52 #define GPU_INTR_STATUS_VSYNC_1                 1       /* vsync on head B */
  53 #define GPU_INTR_STATUS_FLIP_0                  3       /* flip head A */
  54 #define GPU_INTR_STATUS_FLIP_1                  4       /* flip head B */
  55 #define GPU_INTR_STATUS_QUEUE_0                 5       /* queue head A */
  56 #define GPU_INTR_STATUS_QUEUE_1                 6       /* queue head B */
  57
  58 #define GPU_DRIVER_INFO_VERSION                 0x211
  59
  60 /* gpu internals */
  61 struct display_head {
  62         u64 be_time_stamp;
  63         u32 status;
  64         u32 offset;
  65         u32 res1;
  66         u32 res2;
  67         u32 field;
  68         u32 reserved1;
  69
  70         u64 res3;
  71         u32 raster;
  72
  73         u64 vblank_count;
  74         u32 field_vsync;
  75         u32 reserved2;
  76 };
  77
  78 struct gpu_irq {
  79         u32 irq_outlet;
  80         u32 status;
  81         u32 mask;
  82         u32 video_cause;
  83         u32 graph_cause;
  84         u32 user_cause;
  85
  86         u32 res1;
  87         u64 res2;
  88
  89         u32 reserved[4];
  90 };
  91
  92 struct gpu_driver_info {
  93         u32 version_driver;
  94         u32 version_gpu;
  95         u32 memory_size;
  96         u32 hardware_channel;
  97
  98         u32 nvcore_frequency;
  99         u32 memory_frequency;
 100
 101         u32 reserved[1063];
 102         struct display_head display_head[8];
 103         struct gpu_irq irq;
 104 };
 105
 106 struct ps3fb_priv {
 107         unsigned int irq_no;
 108
 109         u64 context_handle, memory_handle;
 110         struct gpu_driver_info *dinfo;
 111
 112         u64 vblank_count;       /* frame count */
 113         wait_queue_head_t wait_vsync;
 114
 115         atomic_t ext_flip;      /* on/off flip with vsync */
 116         atomic_t f_count;       /* fb_open count */
 117         int is_blanked;
 118         int is_kicked;
 119         struct task_struct *task;
 120 };
 121 static struct ps3fb_priv ps3fb;
 122
 123 struct ps3fb_par {
 124         u32 pseudo_palette[16];
 125         int mode_id, new_mode_id;
 126         unsigned int num_frames;        /* num of frame buffers */
 127         unsigned int width;
 128         unsigned int height;
 129         unsigned int ddr_line_length;
 130         unsigned int ddr_frame_size;
 131         unsigned int xdr_frame_size;
 132         unsigned int full_offset;       /* start of fullscreen DDR fb */
 133         unsigned int fb_offset;         /* start of actual DDR fb */
 134         unsigned int pan_offset;
 135 };
 136
 137
 138 #define FIRST_NATIVE_MODE_INDEX 10
 139
 140 static const struct fb_videomode ps3fb_modedb[] = {
 141     /* 60 Hz broadcast modes (modes "1" to "5") */
 142     {
 143         /* 480i */
 144         "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
 145         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 146     },    {
 147         /* 480p */
 148         "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
 149         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 150     },    {
 151         /* 720p */
 152         "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
 153         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 154     },    {
 155         /* 1080i */
 156         "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
 157         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 158     },    {
 159         /* 1080p */
 160         "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
 161         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 162     },
 163
 164     /* 50 Hz broadcast modes (modes "6" to "10") */
 165     {
 166         /* 576i */
 167         "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
 168         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 169     },    {
 170         /* 576p */
 171         "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
 172         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 173     },    {
 174         /* 720p */
 175         "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
 176         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 177     },    {
 178         /* 1080i */
 179         "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
 180         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 181     },    {
 182         /* 1080p */
 183         "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
 184         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 185     },
 186
 187     [FIRST_NATIVE_MODE_INDEX] =
 188     /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
 189     {
 190         /* 480if */
 191         "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
 192         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 193     }, {
 194         /* 480pf */
 195         "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
 196         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 197     }, {
 198         /* 720pf */
 199         "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
 200         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 201     }, {
 202         /* 1080if */
 203         "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
 204         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 205     }, {
 206         /* 1080pf */
 207         "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
 208         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 209     },
 210
 211     /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
 212     {
 213         /* 576if */
 214         "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
 215         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 216     }, {
 217         /* 576pf */
 218         "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
 219         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 220     }, {
 221         /* 720pf */
 222         "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
 223         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 224     }, {
 225         /* 1080if */
 226         "1080if", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
 227         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 228     }, {
 229         /* 1080pf */
 230         "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
 231         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 232     },
 233
 234     /* VESA modes (modes "11" to "13") */
 235     {
 236         /* WXGA */
 237         "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
 238         0, FB_VMODE_NONINTERLACED,
 239         FB_MODE_IS_VESA
 240     }, {
 241         /* SXGA */
 242         "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
 243         FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
 244         FB_MODE_IS_VESA
 245     }, {
 246         /* WUXGA */
 247         "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
 248         FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
 249         FB_MODE_IS_VESA
 250     }
 251 };
 252
 253
 254 #define HEAD_A
 255 #define HEAD_B
 256
 257 #define BPP             4                       /* number of bytes per pixel */
 258
 259
 260 static int ps3fb_mode;
 261 module_param(ps3fb_mode, int, 0);
 262
 263 static char *mode_option __devinitdata;
 264
 265 static int ps3fb_cmp_mode(const struct fb_videomode *vmode,
 266                           const struct fb_var_screeninfo *var)
 267 {
 268         long xres, yres, left_margin, right_margin, upper_margin, lower_margin;
 269         long dx, dy;
 270
 271         /* maximum values */
 272         if (var->xres > vmode->xres || var->yres > vmode->yres ||
 273             var->pixclock > vmode->pixclock ||
 274             var->hsync_len > vmode->hsync_len ||
 275             var->vsync_len > vmode->vsync_len)
 276                 return -1;
 277
 278         /* progressive/interlaced must match */
 279         if ((var->vmode & FB_VMODE_MASK) != vmode->vmode)
 280                 return -1;
 281
 282         /* minimum resolution */
 283         xres = max(var->xres, 1U);
 284         yres = max(var->yres, 1U);
 285
 286         /* minimum margins */
 287         left_margin = max(var->left_margin, vmode->left_margin);
 288         right_margin = max(var->right_margin, vmode->right_margin);
 289         upper_margin = max(var->upper_margin, vmode->upper_margin);
 290         lower_margin = max(var->lower_margin, vmode->lower_margin);
 291
 292         /* resolution + margins may not exceed native parameters */
 293         dx = ((long)vmode->left_margin + (long)vmode->xres +
 294               (long)vmode->right_margin) -
 295              (left_margin + xres + right_margin);
 296         if (dx < 0)
 297                 return -1;
 298
 299         dy = ((long)vmode->upper_margin + (long)vmode->yres +
 300               (long)vmode->lower_margin) -
 301              (upper_margin + yres + lower_margin);
 302         if (dy < 0)
 303                 return -1;
 304
 305         /* exact match */
 306         if (!dx && !dy)
 307                 return 0;
 308
 309         /* resolution difference */
 310         return (vmode->xres - xres) * (vmode->yres - yres);
 311 }
 312
 313 static const struct fb_videomode *ps3fb_native_vmode(enum ps3av_mode_num id)
 314 {
 315         return &ps3fb_modedb[FIRST_NATIVE_MODE_INDEX + id - 1];
 316 }
 317
 318 static const struct fb_videomode *ps3fb_vmode(int id)
 319 {
 320         u32 mode = id & PS3AV_MODE_MASK;
 321
 322         if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA)
 323                 return NULL;
 324
 325         if (mode <= PS3AV_MODE_1080P50 && !(id & PS3AV_MODE_FULL)) {
 326                 /* Non-fullscreen broadcast mode */
 327                 return &ps3fb_modedb[mode - 1];
 328         }
 329
 330         return ps3fb_native_vmode(mode);
 331 }
 332
 333 static unsigned int ps3fb_find_mode(struct fb_var_screeninfo *var,
 334                                     u32 *ddr_line_length, u32 *xdr_line_length)
 335 {
 336         unsigned int id, best_id;
 337         int diff, best_diff;
 338         const struct fb_videomode *vmode;
 339         long gap;
 340
 341         best_id = 0;
 342         best_diff = INT_MAX;
 343         pr_debug("%s: wanted %u [%u] %u x %u [%u] %u\n", __func__,
 344                  var->left_margin, var->xres, var->right_margin,
 345                  var->upper_margin, var->yres, var->lower_margin);
 346         for (id = PS3AV_MODE_480I; id <= PS3AV_MODE_WUXGA; id++) {
 347                 vmode = ps3fb_native_vmode(id);
 348                 diff = ps3fb_cmp_mode(vmode, var);
 349                 pr_debug("%s: mode %u: %u [%u] %u x %u [%u] %u: diff = %d\n",
 350                          __func__, id, vmode->left_margin, vmode->xres,
 351                          vmode->right_margin, vmode->upper_margin,
 352                          vmode->yres, vmode->lower_margin, diff);
 353                 if (diff < 0)
 354                         continue;
 355                 if (diff < best_diff) {
 356                         best_id = id;
 357                         if (!diff)
 358                                 break;
 359                         best_diff = diff;
 360                 }
 361         }
 362
 363         if (!best_id) {
 364                 pr_debug("%s: no suitable mode found\n", __func__);
 365                 return 0;
 366         }
 367
 368         id = best_id;
 369         vmode = ps3fb_native_vmode(id);
 370
 371         *ddr_line_length = vmode->xres * BPP;
 372
 373         /* minimum resolution */
 374         if (!var->xres)
 375                 var->xres = 1;
 376         if (!var->yres)
 377                 var->yres = 1;
 378
 379         /* minimum virtual resolution */
 380         if (var->xres_virtual < var->xres)
 381                 var->xres_virtual = var->xres;
 382         if (var->yres_virtual < var->yres)
 383                 var->yres_virtual = var->yres;
 384
 385         /* minimum margins */
 386         if (var->left_margin < vmode->left_margin)
 387                 var->left_margin = vmode->left_margin;
 388         if (var->right_margin < vmode->right_margin)
 389                 var->right_margin = vmode->right_margin;
 390         if (var->upper_margin < vmode->upper_margin)
 391                 var->upper_margin = vmode->upper_margin;
 392         if (var->lower_margin < vmode->lower_margin)
 393                 var->lower_margin = vmode->lower_margin;
 394
 395         /* extra margins */
 396         gap = ((long)vmode->left_margin + (long)vmode->xres +
 397                (long)vmode->right_margin) -
 398               ((long)var->left_margin + (long)var->xres +
 399                (long)var->right_margin);
 400         if (gap > 0) {
 401                 var->left_margin += gap/2;
 402                 var->right_margin += (gap+1)/2;
 403                 pr_debug("%s: rounded up H to %u [%u] %u\n", __func__,
 404                          var->left_margin, var->xres, var->right_margin);
 405         }
 406
 407         gap = ((long)vmode->upper_margin + (long)vmode->yres +
 408                (long)vmode->lower_margin) -
 409               ((long)var->upper_margin + (long)var->yres +
 410                (long)var->lower_margin);
 411         if (gap > 0) {
 412                 var->upper_margin += gap/2;
 413                 var->lower_margin += (gap+1)/2;
 414                 pr_debug("%s: rounded up V to %u [%u] %u\n", __func__,
 415                          var->upper_margin, var->yres, var->lower_margin);
 416         }
 417
 418         /* fixed fields */
 419         var->pixclock = vmode->pixclock;
 420         var->hsync_len = vmode->hsync_len;
 421         var->vsync_len = vmode->vsync_len;
 422         var->sync = vmode->sync;
 423
 424         if (ps3_compare_firmware_version(1, 9, 0) >= 0) {
 425                 *xdr_line_length = GPU_ALIGN_UP(var->xres_virtual * BPP);
 426                 if (*xdr_line_length > GPU_MAX_LINE_LENGTH)
 427                         *xdr_line_length = GPU_MAX_LINE_LENGTH;
 428         } else
 429                 *xdr_line_length = *ddr_line_length;
 430
 431         if (vmode->sync & FB_SYNC_BROADCAST) {
 432                 /* Full broadcast modes have the full mode bit set */
 433                 if (vmode->xres == var->xres && vmode->yres == var->yres)
 434                         id |= PS3AV_MODE_FULL;
 435         }
 436
 437         pr_debug("%s: mode %u\n", __func__, id);
 438         return id;
 439 }
 440
 441 static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
 442                              u64 dst_offset, u64 src_offset, u32 width,
 443                              u32 height, u32 dst_line_length,
 444                              u32 src_line_length)
 445 {
 446         int status;
 447         u64 line_length;
 448
 449         line_length = dst_line_length;
 450         if (src_line_length != dst_line_length)
 451                 line_length |= (u64)src_line_length << 32;
 452
 453         src_offset += GPU_FB_START;
 454
 455         mutex_lock(&ps3_gpu_mutex);
 456         status = lv1_gpu_fb_blit(ps3fb.context_handle, dst_offset,
 457                                  GPU_IOIF + src_offset,
 458                                  L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
 459                                  (width << 16) | height,
 460                                  line_length);
 461         mutex_unlock(&ps3_gpu_mutex);
 462
 463         if (status)
 464                 dev_err(dev, "%s: lv1_gpu_fb_blit failed: %d\n", __func__,
 465                         status);
 466 #ifdef HEAD_A
 467         status = lv1_gpu_display_flip(ps3fb.context_handle, 0, frame_offset);
 468         if (status)
 469                 dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
 470                         status);
 471 #endif
 472 #ifdef HEAD_B
 473         status = lv1_gpu_display_flip(ps3fb.context_handle, 1, frame_offset);
 474         if (status)
 475                 dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
 476                         status);
 477 #endif
 478 }
 479
 480 static int ps3fb_sync(struct fb_info *info, u32 frame)
 481 {
 482         struct ps3fb_par *par = info->par;
 483         int error = 0;
 484         u64 ddr_base, xdr_base;
 485
 486         if (frame > par->num_frames - 1) {
 487                 dev_dbg(info->device, "%s: invalid frame number (%u)\n",
 488                         __func__, frame);
 489                 error = -EINVAL;
 490                 goto out;
 491         }
 492
 493         xdr_base = frame * par->xdr_frame_size;
 494         ddr_base = frame * par->ddr_frame_size;
 495
 496         ps3fb_sync_image(info->device, ddr_base + par->full_offset,
 497                          ddr_base + par->fb_offset, xdr_base + par->pan_offset,
 498                          par->width, par->height, par->ddr_line_length,
 499                          info->fix.line_length);
 500
 501 out:
 502         return error;
 503 }
 504
 505 static int ps3fb_open(struct fb_info *info, int user)
 506 {
 507         atomic_inc(&ps3fb.f_count);
 508         return 0;
 509 }
 510
 511 static int ps3fb_release(struct fb_info *info, int user)
 512 {
 513         if (atomic_dec_and_test(&ps3fb.f_count)) {
 514                 if (atomic_read(&ps3fb.ext_flip)) {
 515                         atomic_set(&ps3fb.ext_flip, 0);
 516                         if (console_trylock()) {
 517                                 ps3fb_sync(info, 0);    /* single buffer */
 518                                 console_unlock();
 519                         }
 520                 }
 521         }
 522         return 0;
 523 }
 524
 525     /*
 526      *  Setting the video mode has been split into two parts.
 527      *  First part, xxxfb_check_var, must not write anything
 528      *  to hardware, it should only verify and adjust var.
 529      *  This means it doesn't alter par but it does use hardware
 530      *  data from it to check this var.
 531      */
 532
 533 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 534 {
 535         u32 xdr_line_length, ddr_line_length;
 536         int mode;
 537
 538         mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);
 539         if (!mode)
 540                 return -EINVAL;
 541
 542         /* Virtual screen */
 543         if (var->xres_virtual > xdr_line_length / BPP) {
 544                 dev_dbg(info->device,
 545                         "Horizontal virtual screen size too large\n");
 546                 return -EINVAL;
 547         }
 548
 549         if (var->xoffset + var->xres > var->xres_virtual ||
 550             var->yoffset + var->yres > var->yres_virtual) {
 551                 dev_dbg(info->device, "panning out-of-range\n");
 552                 return -EINVAL;
 553         }
 554
 555         /* We support ARGB8888 only */
 556         if (var->bits_per_pixel > 32 || var->grayscale ||
 557             var->red.offset > 16 || var->green.offset > 8 ||
 558             var->blue.offset > 0 || var->transp.offset > 24 ||
 559             var->red.length > 8 || var->green.length > 8 ||
 560             var->blue.length > 8 || var->transp.length > 8 ||
 561             var->red.msb_right || var->green.msb_right ||
 562             var->blue.msb_right || var->transp.msb_right || var->nonstd) {
 563                 dev_dbg(info->device, "We support ARGB8888 only\n");
 564                 return -EINVAL;
 565         }
 566
 567         var->bits_per_pixel = 32;
 568         var->red.offset = 16;
 569         var->green.offset = 8;
 570         var->blue.offset = 0;
 571         var->transp.offset = 24;
 572         var->red.length = 8;
 573         var->green.length = 8;
 574         var->blue.length = 8;
 575         var->transp.length = 8;
 576         var->red.msb_right = 0;
 577         var->green.msb_right = 0;
 578         var->blue.msb_right = 0;
 579         var->transp.msb_right = 0;
 580
 581         /* Rotation is not supported */
 582         if (var->rotate) {
 583                 dev_dbg(info->device, "Rotation is not supported\n");
 584                 return -EINVAL;
 585         }
 586
 587         /* Memory limit */
 588         if (var->yres_virtual * xdr_line_length > info->fix.smem_len) {
 589                 dev_dbg(info->device, "Not enough memory\n");
 590                 return -ENOMEM;
 591         }
 592
 593         var->height = -1;
 594         var->width = -1;
 595
 596         return 0;
 597 }
 598
 599     /*
 600      * This routine actually sets the video mode.
 601      */
 602
 603 static int ps3fb_set_par(struct fb_info *info)
 604 {
 605         struct ps3fb_par *par = info->par;
 606         unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;
 607         unsigned int ddr_xoff, ddr_yoff, offset;
 608         const struct fb_videomode *vmode;
 609         u64 dst;
 610
 611         mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);
 612         if (!mode)
 613                 return -EINVAL;
 614
 615         vmode = ps3fb_native_vmode(mode & PS3AV_MODE_MASK);
 616
 617         info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
 618         info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
 619         info->fix.line_length = xdr_line_length;
 620
 621         par->ddr_line_length = ddr_line_length;
 622         par->ddr_frame_size = vmode->yres * ddr_line_length;
 623         par->xdr_frame_size = info->var.yres_virtual * xdr_line_length;
 624
 625         par->num_frames = info->fix.smem_len /
 626                           max(par->ddr_frame_size, par->xdr_frame_size);
 627
 628         /* Keep the special bits we cannot set using fb_var_screeninfo */
 629         par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
 630
 631         par->width = info->var.xres;
 632         par->height = info->var.yres;
 633
 634         /* Start of the virtual frame buffer (relative to fullscreen) */
 635         ddr_xoff = info->var.left_margin - vmode->left_margin;
 636         ddr_yoff = info->var.upper_margin - vmode->upper_margin;
 637         offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP;
 638
 639         par->fb_offset = GPU_ALIGN_UP(offset);
 640         par->full_offset = par->fb_offset - offset;
 641         par->pan_offset = info->var.yoffset * xdr_line_length +
 642                           info->var.xoffset * BPP;
 643
 644         if (par->new_mode_id != par->mode_id) {
 645                 if (ps3av_set_video_mode(par->new_mode_id)) {
 646                         par->new_mode_id = par->mode_id;
 647                         return -EINVAL;
 648                 }
 649                 par->mode_id = par->new_mode_id;
 650         }
 651
 652         /* Clear XDR frame buffer memory */
 653         memset((void __force *)info->screen_base, 0, info->fix.smem_len);
 654
 655         /* Clear DDR frame buffer memory */
 656         lines = vmode->yres * par->num_frames;
 657         if (par->full_offset)
 658                 lines++;
 659         maxlines = info->fix.smem_len / ddr_line_length;
 660         for (dst = 0; lines; dst += maxlines * ddr_line_length) {
 661                 unsigned int l = min(lines, maxlines);
 662                 ps3fb_sync_image(info->device, 0, dst, 0, vmode->xres, l,
 663                                  ddr_line_length, ddr_line_length);
 664                 lines -= l;
 665         }
 666
 667         return 0;
 668 }
 669
 670     /*
 671      *  Set a single color register. The values supplied are already
 672      *  rounded down to the hardware's capabilities (according to the
 673      *  entries in the var structure). Return != 0 for invalid regno.
 674      */
 675
 676 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
 677                            unsigned int green, unsigned int blue,
 678                            unsigned int transp, struct fb_info *info)
 679 {
 680         if (regno >= 16)
 681                 return 1;
 682
 683         red >>= 8;
 684         green >>= 8;
 685         blue >>= 8;
 686         transp >>= 8;
 687
 688         ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
 689                                                green << 8 | blue;
 690         return 0;
 691 }
 692
 693 static int ps3fb_pan_display(struct fb_var_screeninfo *var,
 694                              struct fb_info *info)
 695 {
 696         struct ps3fb_par *par = info->par;
 697
 698         par->pan_offset = var->yoffset * info->fix.line_length +
 699                           var->xoffset * BPP;
 700         return 0;
 701 }
 702
 703     /*
 704      *  As we have a virtual frame buffer, we need our own mmap function
 705      */
 706
 707 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 708 {
 709         unsigned long size, offset;
 710
 711         size = vma->vm_end - vma->vm_start;
 712         offset = vma->vm_pgoff << PAGE_SHIFT;
 713         if (offset + size > info->fix.smem_len)
 714                 return -EINVAL;
 715
 716         offset += info->fix.smem_start;
 717         if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
 718                             size, vma->vm_page_prot))
 719                 return -EAGAIN;
 720
 721         dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
 722                 offset, vma->vm_start);
 723         return 0;
 724 }
 725
 726     /*
 727      * Blank the display
 728      */
 729
 730 static int ps3fb_blank(int blank, struct fb_info *info)
 731 {
 732         int retval;
 733
 734         dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
 735         switch (blank) {
 736         case FB_BLANK_POWERDOWN:
 737         case FB_BLANK_HSYNC_SUSPEND:
 738         case FB_BLANK_VSYNC_SUSPEND:
 739         case FB_BLANK_NORMAL:
 740                 retval = ps3av_video_mute(1);   /* mute on */
 741                 if (!retval)
 742                         ps3fb.is_blanked = 1;
 743                 break;
 744
 745         default:                /* unblank */
 746                 retval = ps3av_video_mute(0);   /* mute off */
 747                 if (!retval)
 748                         ps3fb.is_blanked = 0;
 749                 break;
 750         }
 751         return retval;
 752 }
 753
 754 static int ps3fb_get_vblank(struct fb_vblank *vblank)
 755 {
 756         memset(vblank, 0, sizeof(*vblank));
 757         vblank->flags = FB_VBLANK_HAVE_VSYNC;
 758         return 0;
 759 }
 760
 761 static int ps3fb_wait_for_vsync(u32 crtc)
 762 {
 763         int ret;
 764         u64 count;
 765
 766         count = ps3fb.vblank_count;
 767         ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
 768                                                count != ps3fb.vblank_count,
 769                                                HZ / 10);
 770         if (!ret)
 771                 return -ETIMEDOUT;
 772
 773         return 0;
 774 }
 775
 776
 777     /*
 778      * ioctl
 779      */
 780
 781 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 782                        unsigned long arg)
 783 {
 784         void __user *argp = (void __user *)arg;
 785         u32 val;
 786         int retval = -EFAULT;
 787
 788         switch (cmd) {
 789         case FBIOGET_VBLANK:
 790                 {
 791                         struct fb_vblank vblank;
 792                         dev_dbg(info->device, "FBIOGET_VBLANK:\n");
 793                         retval = ps3fb_get_vblank(&vblank);
 794                         if (retval)
 795                                 break;
 796
 797                         if (copy_to_user(argp, &vblank, sizeof(vblank)))
 798                                 retval = -EFAULT;
 799                         break;
 800                 }
 801
 802         case FBIO_WAITFORVSYNC:
 803                 {
 804                         u32 crt;
 805                         dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
 806                         if (get_user(crt, (u32 __user *) arg))
 807                                 break;
 808
 809                         retval = ps3fb_wait_for_vsync(crt);
 810                         break;
 811                 }
 812
 813         case PS3FB_IOCTL_SETMODE:
 814                 {
 815                         struct ps3fb_par *par = info->par;
 816                         const struct fb_videomode *vmode;
 817                         struct fb_var_screeninfo var;
 818
 819                         if (copy_from_user(&val, argp, sizeof(val)))
 820                                 break;
 821
 822                         if (!(val & PS3AV_MODE_MASK)) {
 823                                 u32 id = ps3av_get_auto_mode();
 824                                 if (id > 0)
 825                                         val = (val & ~PS3AV_MODE_MASK) | id;
 826                         }
 827                         dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
 828                         retval = -EINVAL;
 829                         vmode = ps3fb_vmode(val);
 830                         if (vmode) {
 831                                 var = info->var;
 832                                 fb_videomode_to_var(&var, vmode);
 833                                 console_lock();
 834                                 info->flags |= FBINFO_MISC_USEREVENT;
 835                                 /* Force, in case only special bits changed */
 836                                 var.activate |= FB_ACTIVATE_FORCE;
 837                                 par->new_mode_id = val;
 838                                 retval = fb_set_var(info, &var);
 839                                 info->flags &= ~FBINFO_MISC_USEREVENT;
 840                                 console_unlock();
 841                         }
 842                         break;
 843                 }
 844
 845         case PS3FB_IOCTL_GETMODE:
 846                 val = ps3av_get_mode();
 847                 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
 848                 if (!copy_to_user(argp, &val, sizeof(val)))
 849                         retval = 0;
 850                 break;
 851
 852         case PS3FB_IOCTL_SCREENINFO:
 853                 {
 854                         struct ps3fb_par *par = info->par;
 855                         struct ps3fb_ioctl_res res;
 856                         dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
 857                         res.xres = info->fix.line_length / BPP;
 858                         res.yres = info->var.yres_virtual;
 859                         res.xoff = (res.xres - info->var.xres) / 2;
 860                         res.yoff = (res.yres - info->var.yres) / 2;
 861                         res.num_frames = par->num_frames;
 862                         if (!copy_to_user(argp, &res, sizeof(res)))
 863                                 retval = 0;
 864                         break;
 865                 }
 866
 867         case PS3FB_IOCTL_ON:
 868                 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
 869                 atomic_inc(&ps3fb.ext_flip);
 870                 retval = 0;
 871                 break;
 872
 873         case PS3FB_IOCTL_OFF:
 874                 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
 875                 atomic_dec_if_positive(&ps3fb.ext_flip);
 876                 retval = 0;
 877                 break;
 878
 879         case PS3FB_IOCTL_FSEL:
 880                 if (copy_from_user(&val, argp, sizeof(val)))
 881                         break;
 882
 883                 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
 884                 console_lock();
 885                 retval = ps3fb_sync(info, val);
 886                 console_unlock();
 887                 break;
 888
 889         default:
 890                 retval = -ENOIOCTLCMD;
 891                 break;
 892         }
 893         return retval;
 894 }
 895
 896 static int ps3fbd(void *arg)
 897 {
 898         struct fb_info *info = arg;
 899
 900         set_freezable();
 901         while (!kthread_should_stop()) {
 902                 try_to_freeze();
 903                 set_current_state(TASK_INTERRUPTIBLE);
 904                 if (ps3fb.is_kicked) {
 905                         ps3fb.is_kicked = 0;
 906                         console_lock();
 907                         ps3fb_sync(info, 0);    /* single buffer */
 908                         console_unlock();
 909                 }
 910                 schedule();
 911         }
 912         return 0;
 913 }
 914
 915 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
 916 {
 917         struct device *dev = ptr;
 918         u64 v1;
 919         int status;
 920         struct display_head *head = &ps3fb.dinfo->display_head[1];
 921
 922         status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
 923         if (status) {
 924                 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
 925                         status);
 926                 return IRQ_NONE;
 927         }
 928
 929         if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
 930                 /* VSYNC */
 931                 ps3fb.vblank_count = head->vblank_count;
 932                 if (ps3fb.task && !ps3fb.is_blanked &&
 933                     !atomic_read(&ps3fb.ext_flip)) {
 934                         ps3fb.is_kicked = 1;
 935                         wake_up_process(ps3fb.task);
 936                 }
 937                 wake_up_interruptible(&ps3fb.wait_vsync);
 938         }
 939
 940         return IRQ_HANDLED;
 941 }
 942
 943
 944 static struct fb_ops ps3fb_ops = {
 945         .fb_open        = ps3fb_open,
 946         .fb_release     = ps3fb_release,
 947         .fb_read        = fb_sys_read,
 948         .fb_write       = fb_sys_write,
 949         .fb_check_var   = ps3fb_check_var,
 950         .fb_set_par     = ps3fb_set_par,
 951         .fb_setcolreg   = ps3fb_setcolreg,
 952         .fb_pan_display = ps3fb_pan_display,
 953         .fb_fillrect    = sys_fillrect,
 954         .fb_copyarea    = sys_copyarea,
 955         .fb_imageblit   = sys_imageblit,
 956         .fb_mmap        = ps3fb_mmap,
 957         .fb_blank       = ps3fb_blank,
 958         .fb_ioctl       = ps3fb_ioctl,
 959         .fb_compat_ioctl = ps3fb_ioctl
 960 };
 961
 962 static struct fb_fix_screeninfo ps3fb_fix __initdata = {
 963         .id =           DEVICE_NAME,
 964         .type =         FB_TYPE_PACKED_PIXELS,
 965         .visual =       FB_VISUAL_TRUECOLOR,
 966         .accel =        FB_ACCEL_NONE,
 967 };
 968
 969 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
 970 {
 971         struct fb_info *info;
 972         struct ps3fb_par *par;
 973         int retval;
 974         u64 ddr_lpar = 0;
 975         u64 lpar_dma_control = 0;
 976         u64 lpar_driver_info = 0;
 977         u64 lpar_reports = 0;
 978         u64 lpar_reports_size = 0;
 979         u64 xdr_lpar;
 980         struct gpu_driver_info *dinfo;
 981         void *fb_start;
 982         int status;
 983         struct task_struct *task;
 984         unsigned long max_ps3fb_size;
 985
 986         if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {
 987                 dev_err(&dev->core, "%s: Not enough video memory\n", __func__);
 988                 return -ENOMEM;
 989         }
 990
 991         retval = ps3_open_hv_device(dev);
 992         if (retval) {
 993                 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
 994                         __func__);
 995                 goto err;
 996         }
 997
 998         if (!ps3fb_mode)
 999                 ps3fb_mode = ps3av_get_mode();
1000         dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode);
1001
1002         atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1003         atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1004         init_waitqueue_head(&ps3fb.wait_vsync);
1005
1006 #ifdef HEAD_A
1007         status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC);
1008         if (status) {
1009                 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1010                         __func__, status);
1011                 retval = -ENODEV;
1012                 goto err_close_device;
1013         }
1014 #endif
1015 #ifdef HEAD_B
1016         status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC);
1017         if (status) {
1018                 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1019                         __func__, status);
1020                 retval = -ENODEV;
1021                 goto err_close_device;
1022         }
1023 #endif
1024
1025         max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
1026         if (ps3fb_videomemory.size > max_ps3fb_size) {
1027                 dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",
1028                          max_ps3fb_size);
1029                 ps3fb_videomemory.size = max_ps3fb_size;
1030         }
1031
1032         /* get gpu context handle */
1033         status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,
1034                                          &ps3fb.memory_handle, &ddr_lpar);
1035         if (status) {
1036                 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1037                         __func__, status);
1038                 goto err_close_device;
1039         }
1040         dev_dbg(&dev->core, "ddr:lpar:0x%llx\n", ddr_lpar);
1041
1042         status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1043                                           &ps3fb.context_handle,
1044                                           &lpar_dma_control, &lpar_driver_info,
1045                                           &lpar_reports, &lpar_reports_size);
1046         if (status) {
1047                 dev_err(&dev->core,
1048                         "%s: lv1_gpu_context_allocate failed: %d\n", __func__,
1049                         status);
1050                 goto err_gpu_memory_free;
1051         }
1052
1053         /* vsync interrupt */
1054         dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);
1055         if (!dinfo) {
1056                 dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1057                 goto err_gpu_context_free;
1058         }
1059
1060         ps3fb.dinfo = dinfo;
1061         dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver);
1062         dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet);
1063         dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x "
1064                 "core_freq: %d mem_freq:%d\n", dinfo->version_gpu,
1065                 dinfo->memory_size, dinfo->hardware_channel,
1066                 dinfo->nvcore_frequency/1000000,
1067                 dinfo->memory_frequency/1000000);
1068
1069         if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
1070                 dev_err(&dev->core, "%s: version_driver err:%x\n", __func__,
1071                         dinfo->version_driver);
1072                 retval = -EINVAL;
1073                 goto err_iounmap_dinfo;
1074         }
1075
1076         retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
1077                                     &ps3fb.irq_no);
1078         if (retval) {
1079                 dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__,
1080                         retval);
1081                 goto err_iounmap_dinfo;
1082         }
1083
1084         retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt,
1085                              0, DEVICE_NAME, &dev->core);
1086         if (retval) {
1087                 dev_err(&dev->core, "%s: request_irq failed %d\n", __func__,
1088                         retval);
1089                 goto err_destroy_plug;
1090         }
1091
1092         dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
1093                           (1 << GPU_INTR_STATUS_FLIP_1);
1094
1095         /* Clear memory to prevent kernel info leakage into userspace */
1096         memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size);
1097
1098         xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1099
1100         status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
1101                                        xdr_lpar, ps3fb_videomemory.size,
1102                                        CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
1103                                        CBE_IOPTE_M);
1104         if (status) {
1105                 dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n",
1106                         __func__, status);
1107                 retval =  -ENXIO;
1108                 goto err_free_irq;
1109         }
1110
1111         dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n",
1112                 ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,
1113                 ps3fb_videomemory.size);
1114
1115         status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar,
1116                                   GPU_CMD_BUF_SIZE, GPU_IOIF);
1117         if (status) {
1118                 dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n",
1119                         __func__, status);
1120                 retval = -ENXIO;
1121                 goto err_context_unmap;
1122         }
1123
1124         info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
1125         if (!info)
1126                 goto err_context_fb_close;
1127
1128         par = info->par;
1129         par->mode_id = ~ps3fb_mode;     /* != ps3fb_mode, to trigger change */
1130         par->new_mode_id = ps3fb_mode;
1131         par->num_frames = 1;
1132
1133         info->fbops = &ps3fb_ops;
1134         info->fix = ps3fb_fix;
1135
1136         /*
1137          * The GPU command buffer is at the start of video memory
1138          * As we don't use the full command buffer, we can put the actual
1139          * frame buffer at offset GPU_FB_START and save some precious XDR
1140          * memory
1141          */
1142         fb_start = ps3fb_videomemory.address + GPU_FB_START;
1143         info->screen_base = (char __force __iomem *)fb_start;
1144         info->fix.smem_start = virt_to_abs(fb_start);
1145         info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START;
1146
1147         info->pseudo_palette = par->pseudo_palette;
1148         info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
1149                       FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
1150
1151         retval = fb_alloc_cmap(&info->cmap, 256, 0);
1152         if (retval < 0)
1153                 goto err_framebuffer_release;
1154
1155         if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1156                           ARRAY_SIZE(ps3fb_modedb),
1157                           ps3fb_vmode(par->new_mode_id), 32)) {
1158                 retval = -EINVAL;
1159                 goto err_fb_dealloc;
1160         }
1161
1162         fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1163                                  &info->modelist);
1164
1165         retval = register_framebuffer(info);
1166         if (retval < 0)
1167                 goto err_fb_dealloc;
1168
1169         ps3_system_bus_set_drvdata(dev, info);
1170
1171         dev_info(info->device, "%s %s, using %u KiB of video memory\n",
1172                  dev_driver_string(info->dev), dev_name(info->dev),
1173                  info->fix.smem_len >> 10);
1174
1175         task = kthread_run(ps3fbd, info, DEVICE_NAME);
1176         if (IS_ERR(task)) {
1177                 retval = PTR_ERR(task);
1178                 goto err_unregister_framebuffer;
1179         }
1180
1181         ps3fb.task = task;
1182
1183         return 0;
1184
1185 err_unregister_framebuffer:
1186         unregister_framebuffer(info);
1187 err_fb_dealloc:
1188         fb_dealloc_cmap(&info->cmap);
1189 err_framebuffer_release:
1190         framebuffer_release(info);
1191 err_context_fb_close:
1192         lv1_gpu_fb_close(ps3fb.context_handle);
1193 err_context_unmap:
1194         lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1195                               ps3fb_videomemory.size, CBE_IOPTE_M);
1196 err_free_irq:
1197         free_irq(ps3fb.irq_no, &dev->core);
1198 err_destroy_plug:
1199         ps3_irq_plug_destroy(ps3fb.irq_no);
1200 err_iounmap_dinfo:
1201         iounmap((u8 __force __iomem *)ps3fb.dinfo);
1202 err_gpu_context_free:
1203         lv1_gpu_context_free(ps3fb.context_handle);
1204 err_gpu_memory_free:
1205         lv1_gpu_memory_free(ps3fb.memory_handle);
1206 err_close_device:
1207         ps3_close_hv_device(dev);
1208 err:
1209         return retval;
1210 }
1211
1212 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1213 {
1214         struct fb_info *info = ps3_system_bus_get_drvdata(dev);
1215         u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1216
1217         dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1218
1219         atomic_inc(&ps3fb.ext_flip);    /* flip off */
1220         ps3fb.dinfo->irq.mask = 0;
1221
1222         if (ps3fb.task) {
1223                 struct task_struct *task = ps3fb.task;
1224                 ps3fb.task = NULL;
1225                 kthread_stop(task);
1226         }
1227         if (ps3fb.irq_no) {
1228                 free_irq(ps3fb.irq_no, &dev->core);
1229                 ps3_irq_plug_destroy(ps3fb.irq_no);
1230         }
1231         if (info) {
1232                 unregister_framebuffer(info);
1233                 fb_dealloc_cmap(&info->cmap);
1234                 framebuffer_release(info);
1235                 ps3_system_bus_set_drvdata(dev, NULL);
1236         }
1237         iounmap((u8 __force __iomem *)ps3fb.dinfo);
1238         lv1_gpu_fb_close(ps3fb.context_handle);
1239         lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1240                               ps3fb_videomemory.size, CBE_IOPTE_M);
1241         lv1_gpu_context_free(ps3fb.context_handle);
1242         lv1_gpu_memory_free(ps3fb.memory_handle);
1243         ps3_close_hv_device(dev);
1244         dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1245
1246         return 0;
1247 }
1248
1249 static struct ps3_system_bus_driver ps3fb_driver = {
1250         .match_id       = PS3_MATCH_ID_GPU,
1251         .match_sub_id   = PS3_MATCH_SUB_ID_GPU_FB,
1252         .core.name      = DEVICE_NAME,
1253         .core.owner     = THIS_MODULE,
1254         .probe          = ps3fb_probe,
1255         .remove         = ps3fb_shutdown,
1256         .shutdown       = ps3fb_shutdown,
1257 };
1258
1259 static int __init ps3fb_setup(void)
1260 {
1261         char *options;
1262
1263 #ifdef MODULE
1264         return 0;
1265 #endif
1266
1267         if (fb_get_options(DEVICE_NAME, &options))
1268                 return -ENXIO;
1269
1270         if (!options || !*options)
1271                 return 0;
1272
1273         while (1) {
1274                 char *this_opt = strsep(&options, ",");
1275
1276                 if (!this_opt)
1277                         break;
1278                 if (!*this_opt)
1279                         continue;
1280                 if (!strncmp(this_opt, "mode:", 5))
1281                         ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1282                 else
1283                         mode_option = this_opt;
1284         }
1285         return 0;
1286 }
1287
1288 static int __init ps3fb_init(void)
1289 {
1290         if (!ps3fb_videomemory.address ||  ps3fb_setup())
1291                 return -ENXIO;
1292
1293         return ps3_system_bus_driver_register(&ps3fb_driver);
1294 }
1295
1296 static void __exit ps3fb_exit(void)
1297 {
1298         pr_debug(" -> %s:%d\n", __func__, __LINE__);
1299         ps3_system_bus_driver_unregister(&ps3fb_driver);
1300         pr_debug(" <- %s:%d\n", __func__, __LINE__);
1301 }
1302
1303 module_init(ps3fb_init);
1304 module_exit(ps3fb_exit);
1305
1306 MODULE_LICENSE("GPL");
1307 MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1308 MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1309 MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);