git.oblomov.eu Git - linux-2.6/blob - 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/lv1call.h>
  36 #include <asm/ps3av.h>
  37 #include <asm/ps3fb.h>
  38 #include <asm/ps3.h>
  39
  40
  41 #define DEVICE_NAME             "ps3fb"
  42
  43 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC    0x101
  44 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP    0x102
  45 #define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP        0x600
  46 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT         0x601
  47 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC    0x602
  48
  49 #define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION       (1ULL << 32)
  50
  51 #define L1GPU_DISPLAY_SYNC_HSYNC                1
  52 #define L1GPU_DISPLAY_SYNC_VSYNC                2
  53
  54 #define GPU_CMD_BUF_SIZE                        (2 * 1024 * 1024)
  55 #define GPU_FB_START                            (64 * 1024)
  56 #define GPU_IOIF                                (0x0d000000UL)
  57 #define GPU_ALIGN_UP(x)                         _ALIGN_UP((x), 64)
  58 #define GPU_MAX_LINE_LENGTH                     (65536 - 64)
  59
  60 #define GPU_INTR_STATUS_VSYNC_0                 0       /* vsync on head A */
  61 #define GPU_INTR_STATUS_VSYNC_1                 1       /* vsync on head B */
  62 #define GPU_INTR_STATUS_FLIP_0                  3       /* flip head A */
  63 #define GPU_INTR_STATUS_FLIP_1                  4       /* flip head B */
  64 #define GPU_INTR_STATUS_QUEUE_0                 5       /* queue head A */
  65 #define GPU_INTR_STATUS_QUEUE_1                 6       /* queue head B */
  66
  67 #define GPU_DRIVER_INFO_VERSION                 0x211
  68
  69 /* gpu internals */
  70 struct display_head {
  71         u64 be_time_stamp;
  72         u32 status;
  73         u32 offset;
  74         u32 res1;
  75         u32 res2;
  76         u32 field;
  77         u32 reserved1;
  78
  79         u64 res3;
  80         u32 raster;
  81
  82         u64 vblank_count;
  83         u32 field_vsync;
  84         u32 reserved2;
  85 };
  86
  87 struct gpu_irq {
  88         u32 irq_outlet;
  89         u32 status;
  90         u32 mask;
  91         u32 video_cause;
  92         u32 graph_cause;
  93         u32 user_cause;
  94
  95         u32 res1;
  96         u64 res2;
  97
  98         u32 reserved[4];
  99 };
 100
 101 struct gpu_driver_info {
 102         u32 version_driver;
 103         u32 version_gpu;
 104         u32 memory_size;
 105         u32 hardware_channel;
 106
 107         u32 nvcore_frequency;
 108         u32 memory_frequency;
 109
 110         u32 reserved[1063];
 111         struct display_head display_head[8];
 112         struct gpu_irq irq;
 113 };
 114
 115 struct ps3fb_priv {
 116         unsigned int irq_no;
 117
 118         u64 context_handle, memory_handle;
 119         struct gpu_driver_info *dinfo;
 120
 121         u64 vblank_count;       /* frame count */
 122         wait_queue_head_t wait_vsync;
 123
 124         atomic_t ext_flip;      /* on/off flip with vsync */
 125         atomic_t f_count;       /* fb_open count */
 126         int is_blanked;
 127         int is_kicked;
 128         struct task_struct *task;
 129 };
 130 static struct ps3fb_priv ps3fb;
 131
 132 struct ps3fb_par {
 133         u32 pseudo_palette[16];
 134         int mode_id, new_mode_id;
 135         unsigned int num_frames;        /* num of frame buffers */
 136         unsigned int width;
 137         unsigned int height;
 138         unsigned int ddr_line_length;
 139         unsigned int ddr_frame_size;
 140         unsigned int xdr_frame_size;
 141         unsigned int full_offset;       /* start of fullscreen DDR fb */
 142         unsigned int fb_offset;         /* start of actual DDR fb */
 143         unsigned int pan_offset;
 144 };
 145
 146
 147 #define FIRST_NATIVE_MODE_INDEX 10
 148
 149 static const struct fb_videomode ps3fb_modedb[] = {
 150     /* 60 Hz broadcast modes (modes "1" to "5") */
 151     {
 152         /* 480i */
 153         "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
 154         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 155     },    {
 156         /* 480p */
 157         "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
 158         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 159     },    {
 160         /* 720p */
 161         "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
 162         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 163     },    {
 164         /* 1080i */
 165         "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
 166         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 167     },    {
 168         /* 1080p */
 169         "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
 170         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 171     },
 172
 173     /* 50 Hz broadcast modes (modes "6" to "10") */
 174     {
 175         /* 576i */
 176         "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
 177         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 178     },    {
 179         /* 576p */
 180         "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
 181         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 182     },    {
 183         /* 720p */
 184         "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
 185         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 186     },    {
 187         /* 1080i */
 188         "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
 189         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 190     },    {
 191         /* 1080p */
 192         "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
 193         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 194     },
 195
 196     [FIRST_NATIVE_MODE_INDEX] =
 197     /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
 198     {
 199         /* 480if */
 200         "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
 201         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 202     }, {
 203         /* 480pf */
 204         "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
 205         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 206     }, {
 207         /* 720pf */
 208         "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
 209         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 210     }, {
 211         /* 1080if */
 212         "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
 213         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 214     }, {
 215         /* 1080pf */
 216         "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
 217         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 218     },
 219
 220     /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
 221     {
 222         /* 576if */
 223         "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
 224         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 225     }, {
 226         /* 576pf */
 227         "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
 228         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 229     }, {
 230         /* 720pf */
 231         "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
 232         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 233     }, {
 234         /* 1080if */
 235         "1080if", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
 236         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 237     }, {
 238         /* 1080pf */
 239         "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
 240         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 241     },
 242
 243     /* VESA modes (modes "11" to "13") */
 244     {
 245         /* WXGA */
 246         "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
 247         0, FB_VMODE_NONINTERLACED,
 248         FB_MODE_IS_VESA
 249     }, {
 250         /* SXGA */
 251         "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
 252         FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
 253         FB_MODE_IS_VESA
 254     }, {
 255         /* WUXGA */
 256         "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
 257         FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
 258         FB_MODE_IS_VESA
 259     }
 260 };
 261
 262
 263 #define HEAD_A
 264 #define HEAD_B
 265
 266 #define BPP             4                       /* number of bytes per pixel */
 267
 268
 269 static int ps3fb_mode;
 270 module_param(ps3fb_mode, int, 0);
 271
 272 static char *mode_option __devinitdata;
 273
 274 static int ps3fb_cmp_mode(const struct fb_videomode *vmode,
 275                           const struct fb_var_screeninfo *var)
 276 {
 277         long xres, yres, left_margin, right_margin, upper_margin, lower_margin;
 278         long dx, dy;
 279
 280         /* maximum values */
 281         if (var->xres > vmode->xres || var->yres > vmode->yres ||
 282             var->pixclock > vmode->pixclock ||
 283             var->hsync_len > vmode->hsync_len ||
 284             var->vsync_len > vmode->vsync_len)
 285                 return -1;
 286
 287         /* progressive/interlaced must match */
 288         if ((var->vmode & FB_VMODE_MASK) != vmode->vmode)
 289                 return -1;
 290
 291         /* minimum resolution */
 292         xres = max(var->xres, 1U);
 293         yres = max(var->yres, 1U);
 294
 295         /* minimum margins */
 296         left_margin = max(var->left_margin, vmode->left_margin);
 297         right_margin = max(var->right_margin, vmode->right_margin);
 298         upper_margin = max(var->upper_margin, vmode->upper_margin);
 299         lower_margin = max(var->lower_margin, vmode->lower_margin);
 300
 301         /* resolution + margins may not exceed native parameters */
 302         dx = ((long)vmode->left_margin + (long)vmode->xres +
 303               (long)vmode->right_margin) -
 304              (left_margin + xres + right_margin);
 305         if (dx < 0)
 306                 return -1;
 307
 308         dy = ((long)vmode->upper_margin + (long)vmode->yres +
 309               (long)vmode->lower_margin) -
 310              (upper_margin + yres + lower_margin);
 311         if (dy < 0)
 312                 return -1;
 313
 314         /* exact match */
 315         if (!dx && !dy)
 316                 return 0;
 317
 318         /* resolution difference */
 319         return (vmode->xres - xres) * (vmode->yres - yres);
 320 }
 321
 322 static const struct fb_videomode *ps3fb_native_vmode(enum ps3av_mode_num id)
 323 {
 324         return &ps3fb_modedb[FIRST_NATIVE_MODE_INDEX + id - 1];
 325 }
 326
 327 static const struct fb_videomode *ps3fb_vmode(int id)
 328 {
 329         u32 mode = id & PS3AV_MODE_MASK;
 330
 331         if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA)
 332                 return NULL;
 333
 334         if (mode <= PS3AV_MODE_1080P50 && !(id & PS3AV_MODE_FULL)) {
 335                 /* Non-fullscreen broadcast mode */
 336                 return &ps3fb_modedb[mode - 1];
 337         }
 338
 339         return ps3fb_native_vmode(mode);
 340 }
 341
 342 static unsigned int ps3fb_find_mode(struct fb_var_screeninfo *var,
 343                                     u32 *ddr_line_length, u32 *xdr_line_length)
 344 {
 345         unsigned int id, best_id;
 346         int diff, best_diff;
 347         const struct fb_videomode *vmode;
 348         long gap;
 349
 350         best_id = 0;
 351         best_diff = INT_MAX;
 352         pr_debug("%s: wanted %u [%u] %u x %u [%u] %u\n", __func__,
 353                  var->left_margin, var->xres, var->right_margin,
 354                  var->upper_margin, var->yres, var->lower_margin);
 355         for (id = PS3AV_MODE_480I; id <= PS3AV_MODE_WUXGA; id++) {
 356                 vmode = ps3fb_native_vmode(id);
 357                 diff = ps3fb_cmp_mode(vmode, var);
 358                 pr_debug("%s: mode %u: %u [%u] %u x %u [%u] %u: diff = %d\n",
 359                          __func__, id, vmode->left_margin, vmode->xres,
 360                          vmode->right_margin, vmode->upper_margin,
 361                          vmode->yres, vmode->lower_margin, diff);
 362                 if (diff < 0)
 363                         continue;
 364                 if (diff < best_diff) {
 365                         best_id = id;
 366                         if (!diff)
 367                                 break;
 368                         best_diff = diff;
 369                 }
 370         }
 371
 372         if (!best_id) {
 373                 pr_debug("%s: no suitable mode found\n", __func__);
 374                 return 0;
 375         }
 376
 377         id = best_id;
 378         vmode = ps3fb_native_vmode(id);
 379
 380         *ddr_line_length = vmode->xres * BPP;
 381
 382         /* minimum resolution */
 383         if (!var->xres)
 384                 var->xres = 1;
 385         if (!var->yres)
 386                 var->yres = 1;
 387
 388         /* minimum virtual resolution */
 389         if (var->xres_virtual < var->xres)
 390                 var->xres_virtual = var->xres;
 391         if (var->yres_virtual < var->yres)
 392                 var->yres_virtual = var->yres;
 393
 394         /* minimum margins */
 395         if (var->left_margin < vmode->left_margin)
 396                 var->left_margin = vmode->left_margin;
 397         if (var->right_margin < vmode->right_margin)
 398                 var->right_margin = vmode->right_margin;
 399         if (var->upper_margin < vmode->upper_margin)
 400                 var->upper_margin = vmode->upper_margin;
 401         if (var->lower_margin < vmode->lower_margin)
 402                 var->lower_margin = vmode->lower_margin;
 403
 404         /* extra margins */
 405         gap = ((long)vmode->left_margin + (long)vmode->xres +
 406                (long)vmode->right_margin) -
 407               ((long)var->left_margin + (long)var->xres +
 408                (long)var->right_margin);
 409         if (gap > 0) {
 410                 var->left_margin += gap/2;
 411                 var->right_margin += (gap+1)/2;
 412                 pr_debug("%s: rounded up H to %u [%u] %u\n", __func__,
 413                          var->left_margin, var->xres, var->right_margin);
 414         }
 415
 416         gap = ((long)vmode->upper_margin + (long)vmode->yres +
 417                (long)vmode->lower_margin) -
 418               ((long)var->upper_margin + (long)var->yres +
 419                (long)var->lower_margin);
 420         if (gap > 0) {
 421                 var->upper_margin += gap/2;
 422                 var->lower_margin += (gap+1)/2;
 423                 pr_debug("%s: rounded up V to %u [%u] %u\n", __func__,
 424                          var->upper_margin, var->yres, var->lower_margin);
 425         }
 426
 427         /* fixed fields */
 428         var->pixclock = vmode->pixclock;
 429         var->hsync_len = vmode->hsync_len;
 430         var->vsync_len = vmode->vsync_len;
 431         var->sync = vmode->sync;
 432
 433         if (ps3_compare_firmware_version(1, 9, 0) >= 0) {
 434                 *xdr_line_length = GPU_ALIGN_UP(var->xres_virtual * BPP);
 435                 if (*xdr_line_length > GPU_MAX_LINE_LENGTH)
 436                         *xdr_line_length = GPU_MAX_LINE_LENGTH;
 437         } else
 438                 *xdr_line_length = *ddr_line_length;
 439
 440         if (vmode->sync & FB_SYNC_BROADCAST) {
 441                 /* Full broadcast modes have the full mode bit set */
 442                 if (vmode->xres == var->xres && vmode->yres == var->yres)
 443                         id |= PS3AV_MODE_FULL;
 444         }
 445
 446         pr_debug("%s: mode %u\n", __func__, id);
 447         return id;
 448 }
 449
 450 static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
 451                              u64 dst_offset, u64 src_offset, u32 width,
 452                              u32 height, u32 dst_line_length,
 453                              u32 src_line_length)
 454 {
 455         int status;
 456         u64 line_length;
 457
 458         line_length = dst_line_length;
 459         if (src_line_length != dst_line_length)
 460                 line_length |= (u64)src_line_length << 32;
 461
 462         src_offset += GPU_FB_START;
 463
 464         mutex_lock(&ps3_gpu_mutex);
 465         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 466                                            L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
 467                                            dst_offset, GPU_IOIF + src_offset,
 468                                            L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
 469                                            (width << 16) | height,
 470                                            line_length);
 471         mutex_unlock(&ps3_gpu_mutex);
 472
 473         if (status)
 474                 dev_err(dev,
 475                         "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
 476                         __func__, status);
 477 #ifdef HEAD_A
 478         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 479                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
 480                                            0, frame_offset, 0, 0);
 481         if (status)
 482                 dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
 483                         __func__, status);
 484 #endif
 485 #ifdef HEAD_B
 486         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 487                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
 488                                            1, frame_offset, 0, 0);
 489         if (status)
 490                 dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
 491                         __func__, status);
 492 #endif
 493 }
 494
 495 static int ps3fb_sync(struct fb_info *info, u32 frame)
 496 {
 497         struct ps3fb_par *par = info->par;
 498         int error = 0;
 499         u64 ddr_base, xdr_base;
 500
 501         if (frame > par->num_frames - 1) {
 502                 dev_dbg(info->device, "%s: invalid frame number (%u)\n",
 503                         __func__, frame);
 504                 error = -EINVAL;
 505                 goto out;
 506         }
 507
 508         xdr_base = frame * par->xdr_frame_size;
 509         ddr_base = frame * par->ddr_frame_size;
 510
 511         ps3fb_sync_image(info->device, ddr_base + par->full_offset,
 512                          ddr_base + par->fb_offset, xdr_base + par->pan_offset,
 513                          par->width, par->height, par->ddr_line_length,
 514                          info->fix.line_length);
 515
 516 out:
 517         return error;
 518 }
 519
 520 static int ps3fb_open(struct fb_info *info, int user)
 521 {
 522         atomic_inc(&ps3fb.f_count);
 523         return 0;
 524 }
 525
 526 static int ps3fb_release(struct fb_info *info, int user)
 527 {
 528         if (atomic_dec_and_test(&ps3fb.f_count)) {
 529                 if (atomic_read(&ps3fb.ext_flip)) {
 530                         atomic_set(&ps3fb.ext_flip, 0);
 531                         if (!try_acquire_console_sem()) {
 532                                 ps3fb_sync(info, 0);    /* single buffer */
 533                                 release_console_sem();
 534                         }
 535                 }
 536         }
 537         return 0;
 538 }
 539
 540     /*
 541      *  Setting the video mode has been split into two parts.
 542      *  First part, xxxfb_check_var, must not write anything
 543      *  to hardware, it should only verify and adjust var.
 544      *  This means it doesn't alter par but it does use hardware
 545      *  data from it to check this var.
 546      */
 547
 548 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 549 {
 550         u32 xdr_line_length, ddr_line_length;
 551         int mode;
 552
 553         mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);
 554         if (!mode)
 555                 return -EINVAL;
 556
 557         /* Virtual screen */
 558         if (var->xres_virtual > xdr_line_length / BPP) {
 559                 dev_dbg(info->device,
 560                         "Horizontal virtual screen size too large\n");
 561                 return -EINVAL;
 562         }
 563
 564         if (var->xoffset + var->xres > var->xres_virtual ||
 565             var->yoffset + var->yres > var->yres_virtual) {
 566                 dev_dbg(info->device, "panning out-of-range\n");
 567                 return -EINVAL;
 568         }
 569
 570         /* We support ARGB8888 only */
 571         if (var->bits_per_pixel > 32 || var->grayscale ||
 572             var->red.offset > 16 || var->green.offset > 8 ||
 573             var->blue.offset > 0 || var->transp.offset > 24 ||
 574             var->red.length > 8 || var->green.length > 8 ||
 575             var->blue.length > 8 || var->transp.length > 8 ||
 576             var->red.msb_right || var->green.msb_right ||
 577             var->blue.msb_right || var->transp.msb_right || var->nonstd) {
 578                 dev_dbg(info->device, "We support ARGB8888 only\n");
 579                 return -EINVAL;
 580         }
 581
 582         var->bits_per_pixel = 32;
 583         var->red.offset = 16;
 584         var->green.offset = 8;
 585         var->blue.offset = 0;
 586         var->transp.offset = 24;
 587         var->red.length = 8;
 588         var->green.length = 8;
 589         var->blue.length = 8;
 590         var->transp.length = 8;
 591         var->red.msb_right = 0;
 592         var->green.msb_right = 0;
 593         var->blue.msb_right = 0;
 594         var->transp.msb_right = 0;
 595
 596         /* Rotation is not supported */
 597         if (var->rotate) {
 598                 dev_dbg(info->device, "Rotation is not supported\n");
 599                 return -EINVAL;
 600         }
 601
 602         /* Memory limit */
 603         if (var->yres_virtual * xdr_line_length > info->fix.smem_len) {
 604                 dev_dbg(info->device, "Not enough memory\n");
 605                 return -ENOMEM;
 606         }
 607
 608         var->height = -1;
 609         var->width = -1;
 610
 611         return 0;
 612 }
 613
 614     /*
 615      * This routine actually sets the video mode.
 616      */
 617
 618 static int ps3fb_set_par(struct fb_info *info)
 619 {
 620         struct ps3fb_par *par = info->par;
 621         unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;
 622         unsigned int ddr_xoff, ddr_yoff, offset;
 623         const struct fb_videomode *vmode;
 624         u64 dst;
 625
 626         mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);
 627         if (!mode)
 628                 return -EINVAL;
 629
 630         vmode = ps3fb_native_vmode(mode & PS3AV_MODE_MASK);
 631
 632         info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
 633         info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
 634         info->fix.line_length = xdr_line_length;
 635
 636         par->ddr_line_length = ddr_line_length;
 637         par->ddr_frame_size = vmode->yres * ddr_line_length;
 638         par->xdr_frame_size = info->var.yres_virtual * xdr_line_length;
 639
 640         par->num_frames = info->fix.smem_len /
 641                           max(par->ddr_frame_size, par->xdr_frame_size);
 642
 643         /* Keep the special bits we cannot set using fb_var_screeninfo */
 644         par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
 645
 646         par->width = info->var.xres;
 647         par->height = info->var.yres;
 648
 649         /* Start of the virtual frame buffer (relative to fullscreen) */
 650         ddr_xoff = info->var.left_margin - vmode->left_margin;
 651         ddr_yoff = info->var.upper_margin - vmode->upper_margin;
 652         offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP;
 653
 654         par->fb_offset = GPU_ALIGN_UP(offset);
 655         par->full_offset = par->fb_offset - offset;
 656         par->pan_offset = info->var.yoffset * xdr_line_length +
 657                           info->var.xoffset * BPP;
 658
 659         if (par->new_mode_id != par->mode_id) {
 660                 if (ps3av_set_video_mode(par->new_mode_id)) {
 661                         par->new_mode_id = par->mode_id;
 662                         return -EINVAL;
 663                 }
 664                 par->mode_id = par->new_mode_id;
 665         }
 666
 667         /* Clear XDR frame buffer memory */
 668         memset((void __force *)info->screen_base, 0, info->fix.smem_len);
 669
 670         /* Clear DDR frame buffer memory */
 671         lines = vmode->yres * par->num_frames;
 672         if (par->full_offset)
 673                 lines++;
 674         maxlines = info->fix.smem_len / ddr_line_length;
 675         for (dst = 0; lines; dst += maxlines * ddr_line_length) {
 676                 unsigned int l = min(lines, maxlines);
 677                 ps3fb_sync_image(info->device, 0, dst, 0, vmode->xres, l,
 678                                  ddr_line_length, ddr_line_length);
 679                 lines -= l;
 680         }
 681
 682         return 0;
 683 }
 684
 685     /*
 686      *  Set a single color register. The values supplied are already
 687      *  rounded down to the hardware's capabilities (according to the
 688      *  entries in the var structure). Return != 0 for invalid regno.
 689      */
 690
 691 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
 692                            unsigned int green, unsigned int blue,
 693                            unsigned int transp, struct fb_info *info)
 694 {
 695         if (regno >= 16)
 696                 return 1;
 697
 698         red >>= 8;
 699         green >>= 8;
 700         blue >>= 8;
 701         transp >>= 8;
 702
 703         ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
 704                                                green << 8 | blue;
 705         return 0;
 706 }
 707
 708 static int ps3fb_pan_display(struct fb_var_screeninfo *var,
 709                              struct fb_info *info)
 710 {
 711         struct ps3fb_par *par = info->par;
 712
 713         par->pan_offset = var->yoffset * info->fix.line_length +
 714                           var->xoffset * BPP;
 715         return 0;
 716 }
 717
 718     /*
 719      *  As we have a virtual frame buffer, we need our own mmap function
 720      */
 721
 722 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 723 {
 724         unsigned long size, offset;
 725
 726         size = vma->vm_end - vma->vm_start;
 727         offset = vma->vm_pgoff << PAGE_SHIFT;
 728         if (offset + size > info->fix.smem_len)
 729                 return -EINVAL;
 730
 731         offset += info->fix.smem_start;
 732         if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
 733                             size, vma->vm_page_prot))
 734                 return -EAGAIN;
 735
 736         dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
 737                 offset, vma->vm_start);
 738         return 0;
 739 }
 740
 741     /*
 742      * Blank the display
 743      */
 744
 745 static int ps3fb_blank(int blank, struct fb_info *info)
 746 {
 747         int retval;
 748
 749         dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
 750         switch (blank) {
 751         case FB_BLANK_POWERDOWN:
 752         case FB_BLANK_HSYNC_SUSPEND:
 753         case FB_BLANK_VSYNC_SUSPEND:
 754         case FB_BLANK_NORMAL:
 755                 retval = ps3av_video_mute(1);   /* mute on */
 756                 if (!retval)
 757                         ps3fb.is_blanked = 1;
 758                 break;
 759
 760         default:                /* unblank */
 761                 retval = ps3av_video_mute(0);   /* mute off */
 762                 if (!retval)
 763                         ps3fb.is_blanked = 0;
 764                 break;
 765         }
 766         return retval;
 767 }
 768
 769 static int ps3fb_get_vblank(struct fb_vblank *vblank)
 770 {
 771         memset(vblank, 0, sizeof(*vblank));
 772         vblank->flags = FB_VBLANK_HAVE_VSYNC;
 773         return 0;
 774 }
 775
 776 static int ps3fb_wait_for_vsync(u32 crtc)
 777 {
 778         int ret;
 779         u64 count;
 780
 781         count = ps3fb.vblank_count;
 782         ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
 783                                                count != ps3fb.vblank_count,
 784                                                HZ / 10);
 785         if (!ret)
 786                 return -ETIMEDOUT;
 787
 788         return 0;
 789 }
 790
 791
 792     /*
 793      * ioctl
 794      */
 795
 796 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 797                        unsigned long arg)
 798 {
 799         void __user *argp = (void __user *)arg;
 800         u32 val;
 801         int retval = -EFAULT;
 802
 803         switch (cmd) {
 804         case FBIOGET_VBLANK:
 805                 {
 806                         struct fb_vblank vblank;
 807                         dev_dbg(info->device, "FBIOGET_VBLANK:\n");
 808                         retval = ps3fb_get_vblank(&vblank);
 809                         if (retval)
 810                                 break;
 811
 812                         if (copy_to_user(argp, &vblank, sizeof(vblank)))
 813                                 retval = -EFAULT;
 814                         break;
 815                 }
 816
 817         case FBIO_WAITFORVSYNC:
 818                 {
 819                         u32 crt;
 820                         dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
 821                         if (get_user(crt, (u32 __user *) arg))
 822                                 break;
 823
 824                         retval = ps3fb_wait_for_vsync(crt);
 825                         break;
 826                 }
 827
 828         case PS3FB_IOCTL_SETMODE:
 829                 {
 830                         struct ps3fb_par *par = info->par;
 831                         const struct fb_videomode *vmode;
 832                         struct fb_var_screeninfo var;
 833
 834                         if (copy_from_user(&val, argp, sizeof(val)))
 835                                 break;
 836
 837                         if (!(val & PS3AV_MODE_MASK)) {
 838                                 u32 id = ps3av_get_auto_mode();
 839                                 if (id > 0)
 840                                         val = (val & ~PS3AV_MODE_MASK) | id;
 841                         }
 842                         dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
 843                         retval = -EINVAL;
 844                         vmode = ps3fb_vmode(val);
 845                         if (vmode) {
 846                                 var = info->var;
 847                                 fb_videomode_to_var(&var, vmode);
 848                                 acquire_console_sem();
 849                                 info->flags |= FBINFO_MISC_USEREVENT;
 850                                 /* Force, in case only special bits changed */
 851                                 var.activate |= FB_ACTIVATE_FORCE;
 852                                 par->new_mode_id = val;
 853                                 retval = fb_set_var(info, &var);
 854                                 info->flags &= ~FBINFO_MISC_USEREVENT;
 855                                 release_console_sem();
 856                         }
 857                         break;
 858                 }
 859
 860         case PS3FB_IOCTL_GETMODE:
 861                 val = ps3av_get_mode();
 862                 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
 863                 if (!copy_to_user(argp, &val, sizeof(val)))
 864                         retval = 0;
 865                 break;
 866
 867         case PS3FB_IOCTL_SCREENINFO:
 868                 {
 869                         struct ps3fb_par *par = info->par;
 870                         struct ps3fb_ioctl_res res;
 871                         dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
 872                         res.xres = info->fix.line_length / BPP;
 873                         res.yres = info->var.yres_virtual;
 874                         res.xoff = (res.xres - info->var.xres) / 2;
 875                         res.yoff = (res.yres - info->var.yres) / 2;
 876                         res.num_frames = par->num_frames;
 877                         if (!copy_to_user(argp, &res, sizeof(res)))
 878                                 retval = 0;
 879                         break;
 880                 }
 881
 882         case PS3FB_IOCTL_ON:
 883                 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
 884                 atomic_inc(&ps3fb.ext_flip);
 885                 retval = 0;
 886                 break;
 887
 888         case PS3FB_IOCTL_OFF:
 889                 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
 890                 atomic_dec_if_positive(&ps3fb.ext_flip);
 891                 retval = 0;
 892                 break;
 893
 894         case PS3FB_IOCTL_FSEL:
 895                 if (copy_from_user(&val, argp, sizeof(val)))
 896                         break;
 897
 898                 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
 899                 acquire_console_sem();
 900                 retval = ps3fb_sync(info, val);
 901                 release_console_sem();
 902                 break;
 903
 904         default:
 905                 retval = -ENOIOCTLCMD;
 906                 break;
 907         }
 908         return retval;
 909 }
 910
 911 static int ps3fbd(void *arg)
 912 {
 913         struct fb_info *info = arg;
 914
 915         set_freezable();
 916         while (!kthread_should_stop()) {
 917                 try_to_freeze();
 918                 set_current_state(TASK_INTERRUPTIBLE);
 919                 if (ps3fb.is_kicked) {
 920                         ps3fb.is_kicked = 0;
 921                         acquire_console_sem();
 922                         ps3fb_sync(info, 0);    /* single buffer */
 923                         release_console_sem();
 924                 }
 925                 schedule();
 926         }
 927         return 0;
 928 }
 929
 930 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
 931 {
 932         struct device *dev = ptr;
 933         u64 v1;
 934         int status;
 935         struct display_head *head = &ps3fb.dinfo->display_head[1];
 936
 937         status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
 938         if (status) {
 939                 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
 940                         status);
 941                 return IRQ_NONE;
 942         }
 943
 944         if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
 945                 /* VSYNC */
 946                 ps3fb.vblank_count = head->vblank_count;
 947                 if (ps3fb.task && !ps3fb.is_blanked &&
 948                     !atomic_read(&ps3fb.ext_flip)) {
 949                         ps3fb.is_kicked = 1;
 950                         wake_up_process(ps3fb.task);
 951                 }
 952                 wake_up_interruptible(&ps3fb.wait_vsync);
 953         }
 954
 955         return IRQ_HANDLED;
 956 }
 957
 958
 959 static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo,
 960                                 struct device *dev)
 961 {
 962         int error;
 963
 964         dev_dbg(dev, "version_driver:%x\n", dinfo->version_driver);
 965         dev_dbg(dev, "irq outlet:%x\n", dinfo->irq.irq_outlet);
 966         dev_dbg(dev,
 967                 "version_gpu: %x memory_size: %x ch: %x core_freq: %d "
 968                 "mem_freq:%d\n",
 969                 dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
 970                 dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
 971
 972         if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
 973                 dev_err(dev, "%s: version_driver err:%x\n", __func__,
 974                         dinfo->version_driver);
 975                 return -EINVAL;
 976         }
 977
 978         error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
 979                                    &ps3fb.irq_no);
 980         if (error) {
 981                 dev_err(dev, "%s: ps3_alloc_irq failed %d\n", __func__, error);
 982                 return error;
 983         }
 984
 985         error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
 986                             DEVICE_NAME, dev);
 987         if (error) {
 988                 dev_err(dev, "%s: request_irq failed %d\n", __func__, error);
 989                 ps3_irq_plug_destroy(ps3fb.irq_no);
 990                 return error;
 991         }
 992
 993         dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
 994                           (1 << GPU_INTR_STATUS_FLIP_1);
 995         return 0;
 996 }
 997
 998 static int ps3fb_xdr_settings(u64 xdr_lpar, struct device *dev)
 999 {
1000         int status;
1001
1002         status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
1003                                        xdr_lpar, ps3fb_videomemory.size, 0);
1004         if (status) {
1005                 dev_err(dev, "%s: lv1_gpu_context_iomap failed: %d\n",
1006                         __func__, status);
1007                 return -ENXIO;
1008         }
1009         dev_dbg(dev, "video:%p ioif:%lx lpar:%llx size:%lx\n",
1010                 ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,
1011                 ps3fb_videomemory.size);
1012
1013         status = lv1_gpu_context_attribute(ps3fb.context_handle,
1014                                            L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
1015                                            xdr_lpar, GPU_CMD_BUF_SIZE,
1016                                            GPU_IOIF, 0);
1017         if (status) {
1018                 dev_err(dev,
1019                         "%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
1020                         __func__, status);
1021                 return -ENXIO;
1022         }
1023         return 0;
1024 }
1025
1026 static struct fb_ops ps3fb_ops = {
1027         .fb_open        = ps3fb_open,
1028         .fb_release     = ps3fb_release,
1029         .fb_read        = fb_sys_read,
1030         .fb_write       = fb_sys_write,
1031         .fb_check_var   = ps3fb_check_var,
1032         .fb_set_par     = ps3fb_set_par,
1033         .fb_setcolreg   = ps3fb_setcolreg,
1034         .fb_pan_display = ps3fb_pan_display,
1035         .fb_fillrect    = sys_fillrect,
1036         .fb_copyarea    = sys_copyarea,
1037         .fb_imageblit   = sys_imageblit,
1038         .fb_mmap        = ps3fb_mmap,
1039         .fb_blank       = ps3fb_blank,
1040         .fb_ioctl       = ps3fb_ioctl,
1041         .fb_compat_ioctl = ps3fb_ioctl
1042 };
1043
1044 static struct fb_fix_screeninfo ps3fb_fix __initdata = {
1045         .id =           DEVICE_NAME,
1046         .type =         FB_TYPE_PACKED_PIXELS,
1047         .visual =       FB_VISUAL_TRUECOLOR,
1048         .accel =        FB_ACCEL_NONE,
1049 };
1050
1051 static int ps3fb_set_sync(struct device *dev)
1052 {
1053         int status;
1054
1055 #ifdef HEAD_A
1056         status = lv1_gpu_context_attribute(0x0,
1057                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
1058                                            0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
1059         if (status) {
1060                 dev_err(dev,
1061                         "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
1062                         "%d\n",
1063                         __func__, status);
1064                 return -1;
1065         }
1066 #endif
1067 #ifdef HEAD_B
1068         status = lv1_gpu_context_attribute(0x0,
1069                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
1070                                            1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
1071
1072         if (status) {
1073                 dev_err(dev,
1074                         "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
1075                         "%d\n",
1076                         __func__, status);
1077                 return -1;
1078         }
1079 #endif
1080         return 0;
1081 }
1082
1083 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
1084 {
1085         struct fb_info *info;
1086         struct ps3fb_par *par;
1087         int retval = -ENOMEM;
1088         u64 ddr_lpar = 0;
1089         u64 lpar_dma_control = 0;
1090         u64 lpar_driver_info = 0;
1091         u64 lpar_reports = 0;
1092         u64 lpar_reports_size = 0;
1093         u64 xdr_lpar;
1094         void *fb_start;
1095         int status;
1096         struct task_struct *task;
1097         unsigned long max_ps3fb_size;
1098
1099         if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {
1100                 dev_err(&dev->core, "%s: Not enough video memory\n", __func__);
1101                 return -ENOMEM;
1102         }
1103
1104         status = ps3_open_hv_device(dev);
1105         if (status) {
1106                 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
1107                         __func__);
1108                 goto err;
1109         }
1110
1111         if (!ps3fb_mode)
1112                 ps3fb_mode = ps3av_get_mode();
1113         dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode);
1114
1115         atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1116         atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1117         init_waitqueue_head(&ps3fb.wait_vsync);
1118
1119         ps3fb_set_sync(&dev->core);
1120
1121         max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
1122         if (ps3fb_videomemory.size > max_ps3fb_size) {
1123                 dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",
1124                          max_ps3fb_size);
1125                 ps3fb_videomemory.size = max_ps3fb_size;
1126         }
1127
1128         /* get gpu context handle */
1129         status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,
1130                                          &ps3fb.memory_handle, &ddr_lpar);
1131         if (status) {
1132                 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1133                         __func__, status);
1134                 goto err;
1135         }
1136         dev_dbg(&dev->core, "ddr:lpar:0x%llx\n", ddr_lpar);
1137
1138         status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1139                                           &ps3fb.context_handle,
1140                                           &lpar_dma_control, &lpar_driver_info,
1141                                           &lpar_reports, &lpar_reports_size);
1142         if (status) {
1143                 dev_err(&dev->core,
1144                         "%s: lv1_gpu_context_attribute failed: %d\n", __func__,
1145                         status);
1146                 goto err_gpu_memory_free;
1147         }
1148
1149         /* vsync interrupt */
1150         ps3fb.dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);
1151         if (!ps3fb.dinfo) {
1152                 dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1153                 goto err_gpu_context_free;
1154         }
1155
1156         retval = ps3fb_vsync_settings(ps3fb.dinfo, &dev->core);
1157         if (retval)
1158                 goto err_iounmap_dinfo;
1159
1160         /* Clear memory to prevent kernel info leakage into userspace */
1161         memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size);
1162
1163         xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1164         retval = ps3fb_xdr_settings(xdr_lpar, &dev->core);
1165         if (retval)
1166                 goto err_free_irq;
1167
1168         info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
1169         if (!info)
1170                 goto err_free_irq;
1171
1172         par = info->par;
1173         par->mode_id = ~ps3fb_mode;     /* != ps3fb_mode, to trigger change */
1174         par->new_mode_id = ps3fb_mode;
1175         par->num_frames = 1;
1176
1177         info->fbops = &ps3fb_ops;
1178         info->fix = ps3fb_fix;
1179
1180         /*
1181          * The GPU command buffer is at the start of video memory
1182          * As we don't use the full command buffer, we can put the actual
1183          * frame buffer at offset GPU_FB_START and save some precious XDR
1184          * memory
1185          */
1186         fb_start = ps3fb_videomemory.address + GPU_FB_START;
1187         info->screen_base = (char __force __iomem *)fb_start;
1188         info->fix.smem_start = virt_to_abs(fb_start);
1189         info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START;
1190
1191         info->pseudo_palette = par->pseudo_palette;
1192         info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
1193                       FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
1194
1195         retval = fb_alloc_cmap(&info->cmap, 256, 0);
1196         if (retval < 0)
1197                 goto err_framebuffer_release;
1198
1199         if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1200                           ARRAY_SIZE(ps3fb_modedb),
1201                           ps3fb_vmode(par->new_mode_id), 32)) {
1202                 retval = -EINVAL;
1203                 goto err_fb_dealloc;
1204         }
1205
1206         fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1207                                  &info->modelist);
1208
1209         retval = register_framebuffer(info);
1210         if (retval < 0)
1211                 goto err_fb_dealloc;
1212
1213         dev->core.driver_data = info;
1214
1215         dev_info(info->device, "%s %s, using %u KiB of video memory\n",
1216                  dev_driver_string(info->dev), info->dev->bus_id,
1217                  info->fix.smem_len >> 10);
1218
1219         task = kthread_run(ps3fbd, info, DEVICE_NAME);
1220         if (IS_ERR(task)) {
1221                 retval = PTR_ERR(task);
1222                 goto err_unregister_framebuffer;
1223         }
1224
1225         ps3fb.task = task;
1226
1227         return 0;
1228
1229 err_unregister_framebuffer:
1230         unregister_framebuffer(info);
1231 err_fb_dealloc:
1232         fb_dealloc_cmap(&info->cmap);
1233 err_framebuffer_release:
1234         framebuffer_release(info);
1235 err_free_irq:
1236         free_irq(ps3fb.irq_no, &dev->core);
1237         ps3_irq_plug_destroy(ps3fb.irq_no);
1238 err_iounmap_dinfo:
1239         iounmap((u8 __force __iomem *)ps3fb.dinfo);
1240 err_gpu_context_free:
1241         lv1_gpu_context_free(ps3fb.context_handle);
1242 err_gpu_memory_free:
1243         lv1_gpu_memory_free(ps3fb.memory_handle);
1244 err:
1245         return retval;
1246 }
1247
1248 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1249 {
1250         int status;
1251         struct fb_info *info = dev->core.driver_data;
1252
1253         dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1254
1255         atomic_inc(&ps3fb.ext_flip);    /* flip off */
1256         ps3fb.dinfo->irq.mask = 0;
1257
1258         if (ps3fb.task) {
1259                 struct task_struct *task = ps3fb.task;
1260                 ps3fb.task = NULL;
1261                 kthread_stop(task);
1262         }
1263         if (ps3fb.irq_no) {
1264                 free_irq(ps3fb.irq_no, &dev->core);
1265                 ps3_irq_plug_destroy(ps3fb.irq_no);
1266         }
1267         if (info) {
1268                 unregister_framebuffer(info);
1269                 fb_dealloc_cmap(&info->cmap);
1270                 framebuffer_release(info);
1271                 info = dev->core.driver_data = NULL;
1272         }
1273         iounmap((u8 __force __iomem *)ps3fb.dinfo);
1274
1275         status = lv1_gpu_context_free(ps3fb.context_handle);
1276         if (status)
1277                 dev_dbg(&dev->core, "lv1_gpu_context_free failed: %d\n",
1278                         status);
1279
1280         status = lv1_gpu_memory_free(ps3fb.memory_handle);
1281         if (status)
1282                 dev_dbg(&dev->core, "lv1_gpu_memory_free failed: %d\n",
1283                         status);
1284
1285         ps3_close_hv_device(dev);
1286         dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1287
1288         return 0;
1289 }
1290
1291 static struct ps3_system_bus_driver ps3fb_driver = {
1292         .match_id       = PS3_MATCH_ID_GPU,
1293         .match_sub_id   = PS3_MATCH_SUB_ID_GPU_FB,
1294         .core.name      = DEVICE_NAME,
1295         .core.owner     = THIS_MODULE,
1296         .probe          = ps3fb_probe,
1297         .remove         = ps3fb_shutdown,
1298         .shutdown       = ps3fb_shutdown,
1299 };
1300
1301 static int __init ps3fb_setup(void)
1302 {
1303         char *options;
1304
1305 #ifdef MODULE
1306         return 0;
1307 #endif
1308
1309         if (fb_get_options(DEVICE_NAME, &options))
1310                 return -ENXIO;
1311
1312         if (!options || !*options)
1313                 return 0;
1314
1315         while (1) {
1316                 char *this_opt = strsep(&options, ",");
1317
1318                 if (!this_opt)
1319                         break;
1320                 if (!*this_opt)
1321                         continue;
1322                 if (!strncmp(this_opt, "mode:", 5))
1323                         ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1324                 else
1325                         mode_option = this_opt;
1326         }
1327         return 0;
1328 }
1329
1330 static int __init ps3fb_init(void)
1331 {
1332         if (!ps3fb_videomemory.address ||  ps3fb_setup())
1333                 return -ENXIO;
1334
1335         return ps3_system_bus_driver_register(&ps3fb_driver);
1336 }
1337
1338 static void __exit ps3fb_exit(void)
1339 {
1340         pr_debug(" -> %s:%d\n", __func__, __LINE__);
1341         ps3_system_bus_driver_unregister(&ps3fb_driver);
1342         pr_debug(" <- %s:%d\n", __func__, __LINE__);
1343 }
1344
1345 module_init(ps3fb_init);
1346 module_exit(ps3fb_exit);
1347
1348 MODULE_LICENSE("GPL");
1349 MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1350 MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1351 MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);