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