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/fbcon.h> 33#include <linux/init.h> 34 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((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 */ 61struct 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 78struct 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 92struct 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 106struct 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}; 121static struct ps3fb_priv ps3fb; 122 123struct 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 140static 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 260static int ps3fb_mode; 261module_param(ps3fb_mode, int, 0); 262 263static char *mode_option; 264 265static 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 313static 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 318static 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 333static 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 441static 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 480static 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 501out: 502 return error; 503} 504 505static int ps3fb_open(struct fb_info *info, int user) 506{ 507 atomic_inc(&ps3fb.f_count); 508 return 0; 509} 510 511static 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 533static 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 603static 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 676static 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 693static 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 707static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma) 708{ 709 int r; 710 711 r = vm_iomap_memory(vma, info->fix.smem_start, info->fix.smem_len); 712 713 dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n", 714 info->fix.smem_start + (vma->vm_pgoff << PAGE_SHIFT), 715 vma->vm_start); 716 717 return r; 718} 719 720 /* 721 * Blank the display 722 */ 723 724static int ps3fb_blank(int blank, struct fb_info *info) 725{ 726 int retval; 727 728 dev_dbg(info->device, "%s: blank:%d\n", __func__, blank); 729 switch (blank) { 730 case FB_BLANK_POWERDOWN: 731 case FB_BLANK_HSYNC_SUSPEND: 732 case FB_BLANK_VSYNC_SUSPEND: 733 case FB_BLANK_NORMAL: 734 retval = ps3av_video_mute(1); /* mute on */ 735 if (!retval) 736 ps3fb.is_blanked = 1; 737 break; 738 739 default: /* unblank */ 740 retval = ps3av_video_mute(0); /* mute off */ 741 if (!retval) 742 ps3fb.is_blanked = 0; 743 break; 744 } 745 return retval; 746} 747 748static int ps3fb_get_vblank(struct fb_vblank *vblank) 749{ 750 memset(vblank, 0, sizeof(*vblank)); 751 vblank->flags = FB_VBLANK_HAVE_VSYNC; 752 return 0; 753} 754 755static int ps3fb_wait_for_vsync(u32 crtc) 756{ 757 int ret; 758 u64 count; 759 760 count = ps3fb.vblank_count; 761 ret = wait_event_interruptible_timeout(ps3fb.wait_vsync, 762 count != ps3fb.vblank_count, 763 HZ / 10); 764 if (!ret) 765 return -ETIMEDOUT; 766 767 return 0; 768} 769 770 771 /* 772 * ioctl 773 */ 774 775static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd, 776 unsigned long arg) 777{ 778 void __user *argp = (void __user *)arg; 779 u32 val; 780 int retval = -EFAULT; 781 782 switch (cmd) { 783 case FBIOGET_VBLANK: 784 { 785 struct fb_vblank vblank; 786 dev_dbg(info->device, "FBIOGET_VBLANK:\n"); 787 retval = ps3fb_get_vblank(&vblank); 788 if (retval) 789 break; 790 791 if (copy_to_user(argp, &vblank, sizeof(vblank))) 792 retval = -EFAULT; 793 break; 794 } 795 796 case FBIO_WAITFORVSYNC: 797 { 798 u32 crt; 799 dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n"); 800 if (get_user(crt, (u32 __user *) arg)) 801 break; 802 803 retval = ps3fb_wait_for_vsync(crt); 804 break; 805 } 806 807 case PS3FB_IOCTL_SETMODE: 808 { 809 struct ps3fb_par *par = info->par; 810 const struct fb_videomode *vmode; 811 struct fb_var_screeninfo var; 812 813 if (copy_from_user(&val, argp, sizeof(val))) 814 break; 815 816 if (!(val & PS3AV_MODE_MASK)) { 817 u32 id = ps3av_get_auto_mode(); 818 if (id > 0) 819 val = (val & ~PS3AV_MODE_MASK) | id; 820 } 821 dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val); 822 retval = -EINVAL; 823 vmode = ps3fb_vmode(val); 824 if (vmode) { 825 var = info->var; 826 fb_videomode_to_var(&var, vmode); 827 console_lock(); 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 if (!retval) 833 fbcon_update_vcs(info, var.activate & FB_ACTIVATE_ALL); 834 console_unlock(); 835 } 836 break; 837 } 838 839 case PS3FB_IOCTL_GETMODE: 840 val = ps3av_get_mode(); 841 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val); 842 if (!copy_to_user(argp, &val, sizeof(val))) 843 retval = 0; 844 break; 845 846 case PS3FB_IOCTL_SCREENINFO: 847 { 848 struct ps3fb_par *par = info->par; 849 struct ps3fb_ioctl_res res; 850 dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n"); 851 res.xres = info->fix.line_length / BPP; 852 res.yres = info->var.yres_virtual; 853 res.xoff = (res.xres - info->var.xres) / 2; 854 res.yoff = (res.yres - info->var.yres) / 2; 855 res.num_frames = par->num_frames; 856 if (!copy_to_user(argp, &res, sizeof(res))) 857 retval = 0; 858 break; 859 } 860 861 case PS3FB_IOCTL_ON: 862 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n"); 863 atomic_inc(&ps3fb.ext_flip); 864 retval = 0; 865 break; 866 867 case PS3FB_IOCTL_OFF: 868 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n"); 869 atomic_dec_if_positive(&ps3fb.ext_flip); 870 retval = 0; 871 break; 872 873 case PS3FB_IOCTL_FSEL: 874 if (copy_from_user(&val, argp, sizeof(val))) 875 break; 876 877 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val); 878 console_lock(); 879 retval = ps3fb_sync(info, val); 880 console_unlock(); 881 break; 882 883 default: 884 retval = -ENOIOCTLCMD; 885 break; 886 } 887 return retval; 888} 889 890static int ps3fbd(void *arg) 891{ 892 struct fb_info *info = arg; 893 894 set_freezable(); 895 while (!kthread_should_stop()) { 896 try_to_freeze(); 897 set_current_state(TASK_INTERRUPTIBLE); 898 if (ps3fb.is_kicked) { 899 ps3fb.is_kicked = 0; 900 console_lock(); 901 ps3fb_sync(info, 0); /* single buffer */ 902 console_unlock(); 903 } 904 schedule(); 905 } 906 return 0; 907} 908 909static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr) 910{ 911 struct device *dev = ptr; 912 u64 v1; 913 int status; 914 struct display_head *head = &ps3fb.dinfo->display_head[1]; 915 916 status = lv1_gpu_context_intr(ps3fb.context_handle, &v1); 917 if (status) { 918 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__, 919 status); 920 return IRQ_NONE; 921 } 922 923 if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) { 924 /* VSYNC */ 925 ps3fb.vblank_count = head->vblank_count; 926 if (ps3fb.task && !ps3fb.is_blanked && 927 !atomic_read(&ps3fb.ext_flip)) { 928 ps3fb.is_kicked = 1; 929 wake_up_process(ps3fb.task); 930 } 931 wake_up_interruptible(&ps3fb.wait_vsync); 932 } 933 934 return IRQ_HANDLED; 935} 936 937 938static const struct fb_ops ps3fb_ops = { 939 .fb_open = ps3fb_open, 940 .fb_release = ps3fb_release, 941 .fb_read = fb_sys_read, 942 .fb_write = fb_sys_write, 943 .fb_check_var = ps3fb_check_var, 944 .fb_set_par = ps3fb_set_par, 945 .fb_setcolreg = ps3fb_setcolreg, 946 .fb_pan_display = ps3fb_pan_display, 947 .fb_fillrect = sys_fillrect, 948 .fb_copyarea = sys_copyarea, 949 .fb_imageblit = sys_imageblit, 950 .fb_mmap = ps3fb_mmap, 951 .fb_blank = ps3fb_blank, 952 .fb_ioctl = ps3fb_ioctl, 953 .fb_compat_ioctl = ps3fb_ioctl 954}; 955 956static const struct fb_fix_screeninfo ps3fb_fix = { 957 .id = DEVICE_NAME, 958 .type = FB_TYPE_PACKED_PIXELS, 959 .visual = FB_VISUAL_TRUECOLOR, 960 .accel = FB_ACCEL_NONE, 961}; 962 963static int ps3fb_probe(struct ps3_system_bus_device *dev) 964{ 965 struct fb_info *info; 966 struct ps3fb_par *par; 967 int retval; 968 u64 ddr_lpar = 0; 969 u64 lpar_dma_control = 0; 970 u64 lpar_driver_info = 0; 971 u64 lpar_reports = 0; 972 u64 lpar_reports_size = 0; 973 u64 xdr_lpar; 974 struct gpu_driver_info *dinfo; 975 void *fb_start; 976 int status; 977 struct task_struct *task; 978 unsigned long max_ps3fb_size; 979 980 if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) { 981 dev_err(&dev->core, "%s: Not enough video memory\n", __func__); 982 return -ENOMEM; 983 } 984 985 retval = ps3_open_hv_device(dev); 986 if (retval) { 987 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n", 988 __func__); 989 goto err; 990 } 991 992 if (!ps3fb_mode) 993 ps3fb_mode = ps3av_get_mode(); 994 dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode); 995 996 atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */ 997 atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */ 998 init_waitqueue_head(&ps3fb.wait_vsync); 999 1000#ifdef HEAD_A 1001 status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC); 1002 if (status) { 1003 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n", 1004 __func__, status); 1005 retval = -ENODEV; 1006 goto err_close_device; 1007 } 1008#endif 1009#ifdef HEAD_B 1010 status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC); 1011 if (status) { 1012 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n", 1013 __func__, status); 1014 retval = -ENODEV; 1015 goto err_close_device; 1016 } 1017#endif 1018 1019 max_ps3fb_size = ALIGN(GPU_IOIF, 256*1024*1024) - GPU_IOIF; 1020 if (ps3fb_videomemory.size > max_ps3fb_size) { 1021 dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n", 1022 max_ps3fb_size); 1023 ps3fb_videomemory.size = max_ps3fb_size; 1024 } 1025 1026 /* get gpu context handle */ 1027 status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0, 1028 &ps3fb.memory_handle, &ddr_lpar); 1029 if (status) { 1030 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n", 1031 __func__, status); 1032 retval = -ENOMEM; 1033 goto err_close_device; 1034 } 1035 dev_dbg(&dev->core, "ddr:lpar:0x%llx\n", ddr_lpar); 1036 1037 status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0, 1038 &ps3fb.context_handle, 1039 &lpar_dma_control, &lpar_driver_info, 1040 &lpar_reports, &lpar_reports_size); 1041 if (status) { 1042 dev_err(&dev->core, 1043 "%s: lv1_gpu_context_allocate failed: %d\n", __func__, 1044 status); 1045 retval = -ENOMEM; 1046 goto err_gpu_memory_free; 1047 } 1048 1049 /* vsync interrupt */ 1050 dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024); 1051 if (!dinfo) { 1052 dev_err(&dev->core, "%s: ioremap failed\n", __func__); 1053 retval = -ENOMEM; 1054 goto err_gpu_context_free; 1055 } 1056 1057 ps3fb.dinfo = dinfo; 1058 dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver); 1059 dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet); 1060 dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x " 1061 "core_freq: %d mem_freq:%d\n", dinfo->version_gpu, 1062 dinfo->memory_size, dinfo->hardware_channel, 1063 dinfo->nvcore_frequency/1000000, 1064 dinfo->memory_frequency/1000000); 1065 1066 if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) { 1067 dev_err(&dev->core, "%s: version_driver err:%x\n", __func__, 1068 dinfo->version_driver); 1069 retval = -EINVAL; 1070 goto err_iounmap_dinfo; 1071 } 1072 1073 retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet, 1074 &ps3fb.irq_no); 1075 if (retval) { 1076 dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__, 1077 retval); 1078 goto err_iounmap_dinfo; 1079 } 1080 1081 retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, 1082 0, DEVICE_NAME, &dev->core); 1083 if (retval) { 1084 dev_err(&dev->core, "%s: request_irq failed %d\n", __func__, 1085 retval); 1086 goto err_destroy_plug; 1087 } 1088 1089 dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) | 1090 (1 << GPU_INTR_STATUS_FLIP_1); 1091 1092 /* Clear memory to prevent kernel info leakage into userspace */ 1093 memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size); 1094 1095 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address)); 1096 1097 status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, 1098 xdr_lpar, ps3fb_videomemory.size, 1099 CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | 1100 CBE_IOPTE_M); 1101 if (status) { 1102 dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n", 1103 __func__, status); 1104 retval = -ENXIO; 1105 goto err_free_irq; 1106 } 1107 1108 dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n", 1109 ps3fb_videomemory.address, GPU_IOIF, xdr_lpar, 1110 ps3fb_videomemory.size); 1111 1112 status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar, 1113 GPU_CMD_BUF_SIZE, GPU_IOIF); 1114 if (status) { 1115 dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n", 1116 __func__, status); 1117 retval = -ENXIO; 1118 goto err_context_unmap; 1119 } 1120 1121 info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core); 1122 if (!info) { 1123 retval = -ENOMEM; 1124 goto err_context_fb_close; 1125 } 1126 1127 par = info->par; 1128 par->mode_id = ~ps3fb_mode; /* != ps3fb_mode, to trigger change */ 1129 par->new_mode_id = ps3fb_mode; 1130 par->num_frames = 1; 1131 1132 info->fbops = &ps3fb_ops; 1133 info->fix = ps3fb_fix; 1134 1135 /* 1136 * The GPU command buffer is at the start of video memory 1137 * As we don't use the full command buffer, we can put the actual 1138 * frame buffer at offset GPU_FB_START and save some precious XDR 1139 * memory 1140 */ 1141 fb_start = ps3fb_videomemory.address + GPU_FB_START; 1142 info->screen_base = (char __force __iomem *)fb_start; 1143 info->fix.smem_start = __pa(fb_start); 1144 info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START; 1145 1146 info->pseudo_palette = par->pseudo_palette; 1147 info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST | 1148 FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN; 1149 1150 retval = fb_alloc_cmap(&info->cmap, 256, 0); 1151 if (retval < 0) 1152 goto err_framebuffer_release; 1153 1154 if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb, 1155 ARRAY_SIZE(ps3fb_modedb), 1156 ps3fb_vmode(par->new_mode_id), 32)) { 1157 retval = -EINVAL; 1158 goto err_fb_dealloc; 1159 } 1160 1161 fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb), 1162 &info->modelist); 1163 1164 retval = register_framebuffer(info); 1165 if (retval < 0) 1166 goto err_fb_dealloc; 1167 1168 ps3_system_bus_set_drvdata(dev, info); 1169 1170 dev_info(info->device, "%s %s, using %u KiB of video memory\n", 1171 dev_driver_string(info->dev), dev_name(info->dev), 1172 info->fix.smem_len >> 10); 1173 1174 task = kthread_run(ps3fbd, info, DEVICE_NAME); 1175 if (IS_ERR(task)) { 1176 retval = PTR_ERR(task); 1177 goto err_unregister_framebuffer; 1178 } 1179 1180 ps3fb.task = task; 1181 1182 return 0; 1183 1184err_unregister_framebuffer: 1185 unregister_framebuffer(info); 1186err_fb_dealloc: 1187 fb_dealloc_cmap(&info->cmap); 1188err_framebuffer_release: 1189 framebuffer_release(info); 1190err_context_fb_close: 1191 lv1_gpu_fb_close(ps3fb.context_handle); 1192err_context_unmap: 1193 lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar, 1194 ps3fb_videomemory.size, CBE_IOPTE_M); 1195err_free_irq: 1196 free_irq(ps3fb.irq_no, &dev->core); 1197err_destroy_plug: 1198 ps3_irq_plug_destroy(ps3fb.irq_no); 1199err_iounmap_dinfo: 1200 iounmap((u8 __force __iomem *)ps3fb.dinfo); 1201err_gpu_context_free: 1202 lv1_gpu_context_free(ps3fb.context_handle); 1203err_gpu_memory_free: 1204 lv1_gpu_memory_free(ps3fb.memory_handle); 1205err_close_device: 1206 ps3_close_hv_device(dev); 1207err: 1208 return retval; 1209} 1210 1211static int ps3fb_shutdown(struct ps3_system_bus_device *dev) 1212{ 1213 struct fb_info *info = ps3_system_bus_get_drvdata(dev); 1214 u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address)); 1215 1216 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__); 1217 1218 atomic_inc(&ps3fb.ext_flip); /* flip off */ 1219 ps3fb.dinfo->irq.mask = 0; 1220 1221 if (ps3fb.task) { 1222 struct task_struct *task = ps3fb.task; 1223 ps3fb.task = NULL; 1224 kthread_stop(task); 1225 } 1226 if (ps3fb.irq_no) { 1227 free_irq(ps3fb.irq_no, &dev->core); 1228 ps3_irq_plug_destroy(ps3fb.irq_no); 1229 } 1230 if (info) { 1231 unregister_framebuffer(info); 1232 fb_dealloc_cmap(&info->cmap); 1233 framebuffer_release(info); 1234 ps3_system_bus_set_drvdata(dev, NULL); 1235 } 1236 iounmap((u8 __force __iomem *)ps3fb.dinfo); 1237 lv1_gpu_fb_close(ps3fb.context_handle); 1238 lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar, 1239 ps3fb_videomemory.size, CBE_IOPTE_M); 1240 lv1_gpu_context_free(ps3fb.context_handle); 1241 lv1_gpu_memory_free(ps3fb.memory_handle); 1242 ps3_close_hv_device(dev); 1243 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__); 1244 1245 return 0; 1246} 1247 1248static struct ps3_system_bus_driver ps3fb_driver = { 1249 .match_id = PS3_MATCH_ID_GPU, 1250 .match_sub_id = PS3_MATCH_SUB_ID_GPU_FB, 1251 .core.name = DEVICE_NAME, 1252 .core.owner = THIS_MODULE, 1253 .probe = ps3fb_probe, 1254 .remove = ps3fb_shutdown, 1255 .shutdown = ps3fb_shutdown, 1256}; 1257 1258static int __init ps3fb_setup(void) 1259{ 1260 char *options; 1261 1262#ifdef MODULE 1263 return 0; 1264#endif 1265 1266 if (fb_get_options(DEVICE_NAME, &options)) 1267 return -ENXIO; 1268 1269 if (!options || !*options) 1270 return 0; 1271 1272 while (1) { 1273 char *this_opt = strsep(&options, ","); 1274 1275 if (!this_opt) 1276 break; 1277 if (!*this_opt) 1278 continue; 1279 if (!strncmp(this_opt, "mode:", 5)) 1280 ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0); 1281 else 1282 mode_option = this_opt; 1283 } 1284 return 0; 1285} 1286 1287static int __init ps3fb_init(void) 1288{ 1289 if (!ps3fb_videomemory.address || ps3fb_setup()) 1290 return -ENXIO; 1291 1292 return ps3_system_bus_driver_register(&ps3fb_driver); 1293} 1294 1295static void __exit ps3fb_exit(void) 1296{ 1297 pr_debug(" -> %s:%d\n", __func__, __LINE__); 1298 ps3_system_bus_driver_unregister(&ps3fb_driver); 1299 pr_debug(" <- %s:%d\n", __func__, __LINE__); 1300} 1301 1302module_init(ps3fb_init); 1303module_exit(ps3fb_exit); 1304 1305MODULE_LICENSE("GPL"); 1306MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver"); 1307MODULE_AUTHOR("Sony Computer Entertainment Inc."); 1308MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB); 1309