1 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*- 2 */ 3 /* 4 * 5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 6 * All Rights Reserved. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a 9 * copy of this software and associated documentation files (the 10 * "Software"), to deal in the Software without restriction, including 11 * without limitation the rights to use, copy, modify, merge, publish, 12 * distribute, sub license, and/or sell copies of the Software, and to 13 * permit persons to whom the Software is furnished to do so, subject to 14 * the following conditions: 15 * 16 * The above copyright notice and this permission notice (including the 17 * next paragraph) shall be included in all copies or substantial portions 18 * of the Software. 19 * 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 23 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 27 * 28 */ 29 30 #ifndef _I915_DRV_H_ 31 #define _I915_DRV_H_ 32 33 #include <uapi/drm/i915_drm.h> 34 35 #include "i915_reg.h" 36 #include "intel_bios.h" 37 #include "intel_ringbuffer.h" 38 #include <linux/io-mapping.h> 39 #include <linux/i2c.h> 40 #include <linux/i2c-algo-bit.h> 41 #include <drm/intel-gtt.h> 42 #include <linux/backlight.h> 43 #include <linux/intel-iommu.h> 44 #include <linux/kref.h> 45 #include <linux/pm_qos.h> 46 47 /* General customization: 48 */ 49 50 #define DRIVER_AUTHOR "Tungsten Graphics, Inc." 51 52 #define DRIVER_NAME "i915" 53 #define DRIVER_DESC "Intel Graphics" 54 #define DRIVER_DATE "20080730" 55 56 enum pipe { 57 INVALID_PIPE = -1, 58 PIPE_A = 0, 59 PIPE_B, 60 PIPE_C, 61 _PIPE_EDP, 62 I915_MAX_PIPES = _PIPE_EDP 63 }; 64 #define pipe_name(p) ((p) + 'A') 65 66 enum transcoder { 67 TRANSCODER_A = 0, 68 TRANSCODER_B, 69 TRANSCODER_C, 70 TRANSCODER_EDP, 71 I915_MAX_TRANSCODERS 72 }; 73 #define transcoder_name(t) ((t) + 'A') 74 75 enum plane { 76 PLANE_A = 0, 77 PLANE_B, 78 PLANE_C, 79 }; 80 #define plane_name(p) ((p) + 'A') 81 82 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A') 83 84 enum port { 85 PORT_A = 0, 86 PORT_B, 87 PORT_C, 88 PORT_D, 89 PORT_E, 90 I915_MAX_PORTS 91 }; 92 #define port_name(p) ((p) + 'A') 93 94 #define I915_NUM_PHYS_VLV 1 95 96 enum dpio_channel { 97 DPIO_CH0, 98 DPIO_CH1 99 }; 100 101 enum dpio_phy { 102 DPIO_PHY0, 103 DPIO_PHY1 104 }; 105 106 enum intel_display_power_domain { 107 POWER_DOMAIN_PIPE_A, 108 POWER_DOMAIN_PIPE_B, 109 POWER_DOMAIN_PIPE_C, 110 POWER_DOMAIN_PIPE_A_PANEL_FITTER, 111 POWER_DOMAIN_PIPE_B_PANEL_FITTER, 112 POWER_DOMAIN_PIPE_C_PANEL_FITTER, 113 POWER_DOMAIN_TRANSCODER_A, 114 POWER_DOMAIN_TRANSCODER_B, 115 POWER_DOMAIN_TRANSCODER_C, 116 POWER_DOMAIN_TRANSCODER_EDP, 117 POWER_DOMAIN_PORT_DDI_A_2_LANES, 118 POWER_DOMAIN_PORT_DDI_A_4_LANES, 119 POWER_DOMAIN_PORT_DDI_B_2_LANES, 120 POWER_DOMAIN_PORT_DDI_B_4_LANES, 121 POWER_DOMAIN_PORT_DDI_C_2_LANES, 122 POWER_DOMAIN_PORT_DDI_C_4_LANES, 123 POWER_DOMAIN_PORT_DDI_D_2_LANES, 124 POWER_DOMAIN_PORT_DDI_D_4_LANES, 125 POWER_DOMAIN_PORT_DSI, 126 POWER_DOMAIN_PORT_CRT, 127 POWER_DOMAIN_PORT_OTHER, 128 POWER_DOMAIN_VGA, 129 POWER_DOMAIN_AUDIO, 130 POWER_DOMAIN_INIT, 131 132 POWER_DOMAIN_NUM, 133 }; 134 135 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A) 136 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \ 137 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER) 138 #define POWER_DOMAIN_TRANSCODER(tran) \ 139 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \ 140 (tran) + POWER_DOMAIN_TRANSCODER_A) 141 142 enum hpd_pin { 143 HPD_NONE = 0, 144 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */ 145 HPD_TV = HPD_NONE, /* TV is known to be unreliable */ 146 HPD_CRT, 147 HPD_SDVO_B, 148 HPD_SDVO_C, 149 HPD_PORT_B, 150 HPD_PORT_C, 151 HPD_PORT_D, 152 HPD_NUM_PINS 153 }; 154 155 #define I915_GEM_GPU_DOMAINS \ 156 (I915_GEM_DOMAIN_RENDER | \ 157 I915_GEM_DOMAIN_SAMPLER | \ 158 I915_GEM_DOMAIN_COMMAND | \ 159 I915_GEM_DOMAIN_INSTRUCTION | \ 160 I915_GEM_DOMAIN_VERTEX) 161 162 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++) 163 #define for_each_sprite(p, s) for ((s) = 0; (s) < INTEL_INFO(dev)->num_sprites[(p)]; (s)++) 164 165 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \ 166 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \ 167 if ((intel_encoder)->base.crtc == (__crtc)) 168 169 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \ 170 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \ 171 if ((intel_connector)->base.encoder == (__encoder)) 172 173 struct drm_i915_private; 174 175 enum intel_dpll_id { 176 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */ 177 /* real shared dpll ids must be >= 0 */ 178 DPLL_ID_PCH_PLL_A, 179 DPLL_ID_PCH_PLL_B, 180 }; 181 #define I915_NUM_PLLS 2 182 183 struct intel_dpll_hw_state { 184 uint32_t dpll; 185 uint32_t dpll_md; 186 uint32_t fp0; 187 uint32_t fp1; 188 }; 189 190 struct intel_shared_dpll { 191 int refcount; /* count of number of CRTCs sharing this PLL */ 192 int active; /* count of number of active CRTCs (i.e. DPMS on) */ 193 bool on; /* is the PLL actually active? Disabled during modeset */ 194 const char *name; 195 /* should match the index in the dev_priv->shared_dplls array */ 196 enum intel_dpll_id id; 197 struct intel_dpll_hw_state hw_state; 198 void (*mode_set)(struct drm_i915_private *dev_priv, 199 struct intel_shared_dpll *pll); 200 void (*enable)(struct drm_i915_private *dev_priv, 201 struct intel_shared_dpll *pll); 202 void (*disable)(struct drm_i915_private *dev_priv, 203 struct intel_shared_dpll *pll); 204 bool (*get_hw_state)(struct drm_i915_private *dev_priv, 205 struct intel_shared_dpll *pll, 206 struct intel_dpll_hw_state *hw_state); 207 }; 208 209 /* Used by dp and fdi links */ 210 struct intel_link_m_n { 211 uint32_t tu; 212 uint32_t gmch_m; 213 uint32_t gmch_n; 214 uint32_t link_m; 215 uint32_t link_n; 216 }; 217 218 void intel_link_compute_m_n(int bpp, int nlanes, 219 int pixel_clock, int link_clock, 220 struct intel_link_m_n *m_n); 221 222 struct intel_ddi_plls { 223 int spll_refcount; 224 int wrpll1_refcount; 225 int wrpll2_refcount; 226 }; 227 228 /* Interface history: 229 * 230 * 1.1: Original. 231 * 1.2: Add Power Management 232 * 1.3: Add vblank support 233 * 1.4: Fix cmdbuffer path, add heap destroy 234 * 1.5: Add vblank pipe configuration 235 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank 236 * - Support vertical blank on secondary display pipe 237 */ 238 #define DRIVER_MAJOR 1 239 #define DRIVER_MINOR 6 240 #define DRIVER_PATCHLEVEL 0 241 242 #define WATCH_LISTS 0 243 #define WATCH_GTT 0 244 245 #define I915_GEM_PHYS_CURSOR_0 1 246 #define I915_GEM_PHYS_CURSOR_1 2 247 #define I915_GEM_PHYS_OVERLAY_REGS 3 248 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS) 249 250 struct drm_i915_gem_phys_object { 251 int id; 252 struct page **page_list; 253 drm_dma_handle_t *handle; 254 struct drm_i915_gem_object *cur_obj; 255 }; 256 257 struct opregion_header; 258 struct opregion_acpi; 259 struct opregion_swsci; 260 struct opregion_asle; 261 262 struct intel_opregion { 263 struct opregion_header __iomem *header; 264 struct opregion_acpi __iomem *acpi; 265 struct opregion_swsci __iomem *swsci; 266 u32 swsci_gbda_sub_functions; 267 u32 swsci_sbcb_sub_functions; 268 struct opregion_asle __iomem *asle; 269 void __iomem *vbt; 270 u32 __iomem *lid_state; 271 struct work_struct asle_work; 272 }; 273 #define OPREGION_SIZE (8*1024) 274 275 struct intel_overlay; 276 struct intel_overlay_error_state; 277 278 struct drm_i915_master_private { 279 drm_local_map_t *sarea; 280 struct _drm_i915_sarea *sarea_priv; 281 }; 282 #define I915_FENCE_REG_NONE -1 283 #define I915_MAX_NUM_FENCES 32 284 /* 32 fences + sign bit for FENCE_REG_NONE */ 285 #define I915_MAX_NUM_FENCE_BITS 6 286 287 struct drm_i915_fence_reg { 288 struct list_head lru_list; 289 struct drm_i915_gem_object *obj; 290 int pin_count; 291 }; 292 293 struct sdvo_device_mapping { 294 u8 initialized; 295 u8 dvo_port; 296 u8 slave_addr; 297 u8 dvo_wiring; 298 u8 i2c_pin; 299 u8 ddc_pin; 300 }; 301 302 struct intel_display_error_state; 303 304 struct drm_i915_error_state { 305 struct kref ref; 306 struct timeval time; 307 308 char error_msg[128]; 309 u32 reset_count; 310 u32 suspend_count; 311 312 /* Generic register state */ 313 u32 eir; 314 u32 pgtbl_er; 315 u32 ier; 316 u32 ccid; 317 u32 derrmr; 318 u32 forcewake; 319 u32 error; /* gen6+ */ 320 u32 err_int; /* gen7 */ 321 u32 done_reg; 322 u32 gac_eco; 323 u32 gam_ecochk; 324 u32 gab_ctl; 325 u32 gfx_mode; 326 u32 extra_instdone[I915_NUM_INSTDONE_REG]; 327 u32 pipestat[I915_MAX_PIPES]; 328 u64 fence[I915_MAX_NUM_FENCES]; 329 struct intel_overlay_error_state *overlay; 330 struct intel_display_error_state *display; 331 332 struct drm_i915_error_ring { 333 bool valid; 334 /* Software tracked state */ 335 bool waiting; 336 int hangcheck_score; 337 enum intel_ring_hangcheck_action hangcheck_action; 338 int num_requests; 339 340 /* our own tracking of ring head and tail */ 341 u32 cpu_ring_head; 342 u32 cpu_ring_tail; 343 344 u32 semaphore_seqno[I915_NUM_RINGS - 1]; 345 346 /* Register state */ 347 u32 tail; 348 u32 head; 349 u32 ctl; 350 u32 hws; 351 u32 ipeir; 352 u32 ipehr; 353 u32 instdone; 354 u32 bbstate; 355 u32 instpm; 356 u32 instps; 357 u32 seqno; 358 u64 bbaddr; 359 u64 acthd; 360 u32 fault_reg; 361 u32 faddr; 362 u32 rc_psmi; /* sleep state */ 363 u32 semaphore_mboxes[I915_NUM_RINGS - 1]; 364 365 struct drm_i915_error_object { 366 int page_count; 367 u32 gtt_offset; 368 u32 *pages[0]; 369 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page; 370 371 struct drm_i915_error_request { 372 long jiffies; 373 u32 seqno; 374 u32 tail; 375 } *requests; 376 377 struct { 378 u32 gfx_mode; 379 union { 380 u64 pdp[4]; 381 u32 pp_dir_base; 382 }; 383 } vm_info; 384 385 pid_t pid; 386 char comm[TASK_COMM_LEN]; 387 } ring[I915_NUM_RINGS]; 388 struct drm_i915_error_buffer { 389 u32 size; 390 u32 name; 391 u32 rseqno, wseqno; 392 u32 gtt_offset; 393 u32 read_domains; 394 u32 write_domain; 395 s32 fence_reg:I915_MAX_NUM_FENCE_BITS; 396 s32 pinned:2; 397 u32 tiling:2; 398 u32 dirty:1; 399 u32 purgeable:1; 400 s32 ring:4; 401 u32 cache_level:3; 402 } **active_bo, **pinned_bo; 403 404 u32 *active_bo_count, *pinned_bo_count; 405 }; 406 407 struct intel_connector; 408 struct intel_crtc_config; 409 struct intel_plane_config; 410 struct intel_crtc; 411 struct intel_limit; 412 struct dpll; 413 414 struct drm_i915_display_funcs { 415 bool (*fbc_enabled)(struct drm_device *dev); 416 void (*enable_fbc)(struct drm_crtc *crtc); 417 void (*disable_fbc)(struct drm_device *dev); 418 int (*get_display_clock_speed)(struct drm_device *dev); 419 int (*get_fifo_size)(struct drm_device *dev, int plane); 420 /** 421 * find_dpll() - Find the best values for the PLL 422 * @limit: limits for the PLL 423 * @crtc: current CRTC 424 * @target: target frequency in kHz 425 * @refclk: reference clock frequency in kHz 426 * @match_clock: if provided, @best_clock P divider must 427 * match the P divider from @match_clock 428 * used for LVDS downclocking 429 * @best_clock: best PLL values found 430 * 431 * Returns true on success, false on failure. 432 */ 433 bool (*find_dpll)(const struct intel_limit *limit, 434 struct drm_crtc *crtc, 435 int target, int refclk, 436 struct dpll *match_clock, 437 struct dpll *best_clock); 438 void (*update_wm)(struct drm_crtc *crtc); 439 void (*update_sprite_wm)(struct drm_plane *plane, 440 struct drm_crtc *crtc, 441 uint32_t sprite_width, int pixel_size, 442 bool enable, bool scaled); 443 void (*modeset_global_resources)(struct drm_device *dev); 444 /* Returns the active state of the crtc, and if the crtc is active, 445 * fills out the pipe-config with the hw state. */ 446 bool (*get_pipe_config)(struct intel_crtc *, 447 struct intel_crtc_config *); 448 void (*get_plane_config)(struct intel_crtc *, 449 struct intel_plane_config *); 450 int (*crtc_mode_set)(struct drm_crtc *crtc, 451 int x, int y, 452 struct drm_framebuffer *old_fb); 453 void (*crtc_enable)(struct drm_crtc *crtc); 454 void (*crtc_disable)(struct drm_crtc *crtc); 455 void (*off)(struct drm_crtc *crtc); 456 void (*write_eld)(struct drm_connector *connector, 457 struct drm_crtc *crtc, 458 struct drm_display_mode *mode); 459 void (*fdi_link_train)(struct drm_crtc *crtc); 460 void (*init_clock_gating)(struct drm_device *dev); 461 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc, 462 struct drm_framebuffer *fb, 463 struct drm_i915_gem_object *obj, 464 uint32_t flags); 465 int (*update_primary_plane)(struct drm_crtc *crtc, 466 struct drm_framebuffer *fb, 467 int x, int y); 468 void (*hpd_irq_setup)(struct drm_device *dev); 469 /* clock updates for mode set */ 470 /* cursor updates */ 471 /* render clock increase/decrease */ 472 /* display clock increase/decrease */ 473 /* pll clock increase/decrease */ 474 475 int (*setup_backlight)(struct intel_connector *connector); 476 uint32_t (*get_backlight)(struct intel_connector *connector); 477 void (*set_backlight)(struct intel_connector *connector, 478 uint32_t level); 479 void (*disable_backlight)(struct intel_connector *connector); 480 void (*enable_backlight)(struct intel_connector *connector); 481 }; 482 483 struct intel_uncore_funcs { 484 void (*force_wake_get)(struct drm_i915_private *dev_priv, 485 int fw_engine); 486 void (*force_wake_put)(struct drm_i915_private *dev_priv, 487 int fw_engine); 488 489 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace); 490 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace); 491 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace); 492 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace); 493 494 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset, 495 uint8_t val, bool trace); 496 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset, 497 uint16_t val, bool trace); 498 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset, 499 uint32_t val, bool trace); 500 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset, 501 uint64_t val, bool trace); 502 }; 503 504 struct intel_uncore { 505 spinlock_t lock; /** lock is also taken in irq contexts. */ 506 507 struct intel_uncore_funcs funcs; 508 509 unsigned fifo_count; 510 unsigned forcewake_count; 511 512 unsigned fw_rendercount; 513 unsigned fw_mediacount; 514 515 struct timer_list force_wake_timer; 516 }; 517 518 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \ 519 func(is_mobile) sep \ 520 func(is_i85x) sep \ 521 func(is_i915g) sep \ 522 func(is_i945gm) sep \ 523 func(is_g33) sep \ 524 func(need_gfx_hws) sep \ 525 func(is_g4x) sep \ 526 func(is_pineview) sep \ 527 func(is_broadwater) sep \ 528 func(is_crestline) sep \ 529 func(is_ivybridge) sep \ 530 func(is_valleyview) sep \ 531 func(is_haswell) sep \ 532 func(is_preliminary) sep \ 533 func(has_fbc) sep \ 534 func(has_pipe_cxsr) sep \ 535 func(has_hotplug) sep \ 536 func(cursor_needs_physical) sep \ 537 func(has_overlay) sep \ 538 func(overlay_needs_physical) sep \ 539 func(supports_tv) sep \ 540 func(has_llc) sep \ 541 func(has_ddi) sep \ 542 func(has_fpga_dbg) 543 544 #define DEFINE_FLAG(name) u8 name:1 545 #define SEP_SEMICOLON ; 546 547 struct intel_device_info { 548 u32 display_mmio_offset; 549 u8 num_pipes:3; 550 u8 num_sprites[I915_MAX_PIPES]; 551 u8 gen; 552 u8 ring_mask; /* Rings supported by the HW */ 553 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON); 554 /* Register offsets for the various display pipes and transcoders */ 555 int pipe_offsets[I915_MAX_TRANSCODERS]; 556 int trans_offsets[I915_MAX_TRANSCODERS]; 557 int dpll_offsets[I915_MAX_PIPES]; 558 int dpll_md_offsets[I915_MAX_PIPES]; 559 int palette_offsets[I915_MAX_PIPES]; 560 }; 561 562 #undef DEFINE_FLAG 563 #undef SEP_SEMICOLON 564 565 enum i915_cache_level { 566 I915_CACHE_NONE = 0, 567 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */ 568 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc 569 caches, eg sampler/render caches, and the 570 large Last-Level-Cache. LLC is coherent with 571 the CPU, but L3 is only visible to the GPU. */ 572 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */ 573 }; 574 575 typedef uint32_t gen6_gtt_pte_t; 576 577 /** 578 * A VMA represents a GEM BO that is bound into an address space. Therefore, a 579 * VMA's presence cannot be guaranteed before binding, or after unbinding the 580 * object into/from the address space. 581 * 582 * To make things as simple as possible (ie. no refcounting), a VMA's lifetime 583 * will always be <= an objects lifetime. So object refcounting should cover us. 584 */ 585 struct i915_vma { 586 struct drm_mm_node node; 587 struct drm_i915_gem_object *obj; 588 struct i915_address_space *vm; 589 590 /** This object's place on the active/inactive lists */ 591 struct list_head mm_list; 592 593 struct list_head vma_link; /* Link in the object's VMA list */ 594 595 /** This vma's place in the batchbuffer or on the eviction list */ 596 struct list_head exec_list; 597 598 /** 599 * Used for performing relocations during execbuffer insertion. 600 */ 601 struct hlist_node exec_node; 602 unsigned long exec_handle; 603 struct drm_i915_gem_exec_object2 *exec_entry; 604 605 /** 606 * How many users have pinned this object in GTT space. The following 607 * users can each hold at most one reference: pwrite/pread, pin_ioctl 608 * (via user_pin_count), execbuffer (objects are not allowed multiple 609 * times for the same batchbuffer), and the framebuffer code. When 610 * switching/pageflipping, the framebuffer code has at most two buffers 611 * pinned per crtc. 612 * 613 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3 614 * bits with absolutely no headroom. So use 4 bits. */ 615 unsigned int pin_count:4; 616 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf 617 618 /** Unmap an object from an address space. This usually consists of 619 * setting the valid PTE entries to a reserved scratch page. */ 620 void (*unbind_vma)(struct i915_vma *vma); 621 /* Map an object into an address space with the given cache flags. */ 622 #define GLOBAL_BIND (1<<0) 623 void (*bind_vma)(struct i915_vma *vma, 624 enum i915_cache_level cache_level, 625 u32 flags); 626 }; 627 628 struct i915_address_space { 629 struct drm_mm mm; 630 struct drm_device *dev; 631 struct list_head global_link; 632 unsigned long start; /* Start offset always 0 for dri2 */ 633 size_t total; /* size addr space maps (ex. 2GB for ggtt) */ 634 635 struct { 636 dma_addr_t addr; 637 struct page *page; 638 } scratch; 639 640 /** 641 * List of objects currently involved in rendering. 642 * 643 * Includes buffers having the contents of their GPU caches 644 * flushed, not necessarily primitives. last_rendering_seqno 645 * represents when the rendering involved will be completed. 646 * 647 * A reference is held on the buffer while on this list. 648 */ 649 struct list_head active_list; 650 651 /** 652 * LRU list of objects which are not in the ringbuffer and 653 * are ready to unbind, but are still in the GTT. 654 * 655 * last_rendering_seqno is 0 while an object is in this list. 656 * 657 * A reference is not held on the buffer while on this list, 658 * as merely being GTT-bound shouldn't prevent its being 659 * freed, and we'll pull it off the list in the free path. 660 */ 661 struct list_head inactive_list; 662 663 /* FIXME: Need a more generic return type */ 664 gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr, 665 enum i915_cache_level level, 666 bool valid); /* Create a valid PTE */ 667 void (*clear_range)(struct i915_address_space *vm, 668 uint64_t start, 669 uint64_t length, 670 bool use_scratch); 671 void (*insert_entries)(struct i915_address_space *vm, 672 struct sg_table *st, 673 uint64_t start, 674 enum i915_cache_level cache_level); 675 void (*cleanup)(struct i915_address_space *vm); 676 }; 677 678 /* The Graphics Translation Table is the way in which GEN hardware translates a 679 * Graphics Virtual Address into a Physical Address. In addition to the normal 680 * collateral associated with any va->pa translations GEN hardware also has a 681 * portion of the GTT which can be mapped by the CPU and remain both coherent 682 * and correct (in cases like swizzling). That region is referred to as GMADR in 683 * the spec. 684 */ 685 struct i915_gtt { 686 struct i915_address_space base; 687 size_t stolen_size; /* Total size of stolen memory */ 688 689 unsigned long mappable_end; /* End offset that we can CPU map */ 690 struct io_mapping *mappable; /* Mapping to our CPU mappable region */ 691 phys_addr_t mappable_base; /* PA of our GMADR */ 692 693 /** "Graphics Stolen Memory" holds the global PTEs */ 694 void __iomem *gsm; 695 696 bool do_idle_maps; 697 698 int mtrr; 699 700 /* global gtt ops */ 701 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total, 702 size_t *stolen, phys_addr_t *mappable_base, 703 unsigned long *mappable_end); 704 }; 705 #define gtt_total_entries(gtt) ((gtt).base.total >> PAGE_SHIFT) 706 707 #define GEN8_LEGACY_PDPS 4 708 struct i915_hw_ppgtt { 709 struct i915_address_space base; 710 struct kref ref; 711 struct drm_mm_node node; 712 unsigned num_pd_entries; 713 unsigned num_pd_pages; /* gen8+ */ 714 union { 715 struct page **pt_pages; 716 struct page **gen8_pt_pages[GEN8_LEGACY_PDPS]; 717 }; 718 struct page *pd_pages; 719 union { 720 uint32_t pd_offset; 721 dma_addr_t pd_dma_addr[GEN8_LEGACY_PDPS]; 722 }; 723 union { 724 dma_addr_t *pt_dma_addr; 725 dma_addr_t *gen8_pt_dma_addr[4]; 726 }; 727 728 struct i915_hw_context *ctx; 729 730 int (*enable)(struct i915_hw_ppgtt *ppgtt); 731 int (*switch_mm)(struct i915_hw_ppgtt *ppgtt, 732 struct intel_ring_buffer *ring, 733 bool synchronous); 734 void (*debug_dump)(struct i915_hw_ppgtt *ppgtt, struct seq_file *m); 735 }; 736 737 struct i915_ctx_hang_stats { 738 /* This context had batch pending when hang was declared */ 739 unsigned batch_pending; 740 741 /* This context had batch active when hang was declared */ 742 unsigned batch_active; 743 744 /* Time when this context was last blamed for a GPU reset */ 745 unsigned long guilty_ts; 746 747 /* This context is banned to submit more work */ 748 bool banned; 749 }; 750 751 /* This must match up with the value previously used for execbuf2.rsvd1. */ 752 #define DEFAULT_CONTEXT_ID 0 753 struct i915_hw_context { 754 struct kref ref; 755 int id; 756 bool is_initialized; 757 uint8_t remap_slice; 758 struct drm_i915_file_private *file_priv; 759 struct intel_ring_buffer *last_ring; 760 struct drm_i915_gem_object *obj; 761 struct i915_ctx_hang_stats hang_stats; 762 struct i915_address_space *vm; 763 764 struct list_head link; 765 }; 766 767 struct i915_fbc { 768 unsigned long size; 769 unsigned int fb_id; 770 enum plane plane; 771 int y; 772 773 struct drm_mm_node *compressed_fb; 774 struct drm_mm_node *compressed_llb; 775 776 struct intel_fbc_work { 777 struct delayed_work work; 778 struct drm_crtc *crtc; 779 struct drm_framebuffer *fb; 780 } *fbc_work; 781 782 enum no_fbc_reason { 783 FBC_OK, /* FBC is enabled */ 784 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */ 785 FBC_NO_OUTPUT, /* no outputs enabled to compress */ 786 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */ 787 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */ 788 FBC_MODE_TOO_LARGE, /* mode too large for compression */ 789 FBC_BAD_PLANE, /* fbc not supported on plane */ 790 FBC_NOT_TILED, /* buffer not tiled */ 791 FBC_MULTIPLE_PIPES, /* more than one pipe active */ 792 FBC_MODULE_PARAM, 793 FBC_CHIP_DEFAULT, /* disabled by default on this chip */ 794 } no_fbc_reason; 795 }; 796 797 struct i915_psr { 798 bool sink_support; 799 bool source_ok; 800 }; 801 802 enum intel_pch { 803 PCH_NONE = 0, /* No PCH present */ 804 PCH_IBX, /* Ibexpeak PCH */ 805 PCH_CPT, /* Cougarpoint PCH */ 806 PCH_LPT, /* Lynxpoint PCH */ 807 PCH_NOP, 808 }; 809 810 enum intel_sbi_destination { 811 SBI_ICLK, 812 SBI_MPHY, 813 }; 814 815 #define QUIRK_PIPEA_FORCE (1<<0) 816 #define QUIRK_LVDS_SSC_DISABLE (1<<1) 817 #define QUIRK_INVERT_BRIGHTNESS (1<<2) 818 819 struct intel_fbdev; 820 struct intel_fbc_work; 821 822 struct intel_gmbus { 823 struct i2c_adapter adapter; 824 u32 force_bit; 825 u32 reg0; 826 u32 gpio_reg; 827 struct i2c_algo_bit_data bit_algo; 828 struct drm_i915_private *dev_priv; 829 }; 830 831 struct i915_suspend_saved_registers { 832 u8 saveLBB; 833 u32 saveDSPACNTR; 834 u32 saveDSPBCNTR; 835 u32 saveDSPARB; 836 u32 savePIPEACONF; 837 u32 savePIPEBCONF; 838 u32 savePIPEASRC; 839 u32 savePIPEBSRC; 840 u32 saveFPA0; 841 u32 saveFPA1; 842 u32 saveDPLL_A; 843 u32 saveDPLL_A_MD; 844 u32 saveHTOTAL_A; 845 u32 saveHBLANK_A; 846 u32 saveHSYNC_A; 847 u32 saveVTOTAL_A; 848 u32 saveVBLANK_A; 849 u32 saveVSYNC_A; 850 u32 saveBCLRPAT_A; 851 u32 saveTRANSACONF; 852 u32 saveTRANS_HTOTAL_A; 853 u32 saveTRANS_HBLANK_A; 854 u32 saveTRANS_HSYNC_A; 855 u32 saveTRANS_VTOTAL_A; 856 u32 saveTRANS_VBLANK_A; 857 u32 saveTRANS_VSYNC_A; 858 u32 savePIPEASTAT; 859 u32 saveDSPASTRIDE; 860 u32 saveDSPASIZE; 861 u32 saveDSPAPOS; 862 u32 saveDSPAADDR; 863 u32 saveDSPASURF; 864 u32 saveDSPATILEOFF; 865 u32 savePFIT_PGM_RATIOS; 866 u32 saveBLC_HIST_CTL; 867 u32 saveBLC_PWM_CTL; 868 u32 saveBLC_PWM_CTL2; 869 u32 saveBLC_HIST_CTL_B; 870 u32 saveBLC_CPU_PWM_CTL; 871 u32 saveBLC_CPU_PWM_CTL2; 872 u32 saveFPB0; 873 u32 saveFPB1; 874 u32 saveDPLL_B; 875 u32 saveDPLL_B_MD; 876 u32 saveHTOTAL_B; 877 u32 saveHBLANK_B; 878 u32 saveHSYNC_B; 879 u32 saveVTOTAL_B; 880 u32 saveVBLANK_B; 881 u32 saveVSYNC_B; 882 u32 saveBCLRPAT_B; 883 u32 saveTRANSBCONF; 884 u32 saveTRANS_HTOTAL_B; 885 u32 saveTRANS_HBLANK_B; 886 u32 saveTRANS_HSYNC_B; 887 u32 saveTRANS_VTOTAL_B; 888 u32 saveTRANS_VBLANK_B; 889 u32 saveTRANS_VSYNC_B; 890 u32 savePIPEBSTAT; 891 u32 saveDSPBSTRIDE; 892 u32 saveDSPBSIZE; 893 u32 saveDSPBPOS; 894 u32 saveDSPBADDR; 895 u32 saveDSPBSURF; 896 u32 saveDSPBTILEOFF; 897 u32 saveVGA0; 898 u32 saveVGA1; 899 u32 saveVGA_PD; 900 u32 saveVGACNTRL; 901 u32 saveADPA; 902 u32 saveLVDS; 903 u32 savePP_ON_DELAYS; 904 u32 savePP_OFF_DELAYS; 905 u32 saveDVOA; 906 u32 saveDVOB; 907 u32 saveDVOC; 908 u32 savePP_ON; 909 u32 savePP_OFF; 910 u32 savePP_CONTROL; 911 u32 savePP_DIVISOR; 912 u32 savePFIT_CONTROL; 913 u32 save_palette_a[256]; 914 u32 save_palette_b[256]; 915 u32 saveFBC_CONTROL; 916 u32 saveIER; 917 u32 saveIIR; 918 u32 saveIMR; 919 u32 saveDEIER; 920 u32 saveDEIMR; 921 u32 saveGTIER; 922 u32 saveGTIMR; 923 u32 saveFDI_RXA_IMR; 924 u32 saveFDI_RXB_IMR; 925 u32 saveCACHE_MODE_0; 926 u32 saveMI_ARB_STATE; 927 u32 saveSWF0[16]; 928 u32 saveSWF1[16]; 929 u32 saveSWF2[3]; 930 u8 saveMSR; 931 u8 saveSR[8]; 932 u8 saveGR[25]; 933 u8 saveAR_INDEX; 934 u8 saveAR[21]; 935 u8 saveDACMASK; 936 u8 saveCR[37]; 937 uint64_t saveFENCE[I915_MAX_NUM_FENCES]; 938 u32 saveCURACNTR; 939 u32 saveCURAPOS; 940 u32 saveCURABASE; 941 u32 saveCURBCNTR; 942 u32 saveCURBPOS; 943 u32 saveCURBBASE; 944 u32 saveCURSIZE; 945 u32 saveDP_B; 946 u32 saveDP_C; 947 u32 saveDP_D; 948 u32 savePIPEA_GMCH_DATA_M; 949 u32 savePIPEB_GMCH_DATA_M; 950 u32 savePIPEA_GMCH_DATA_N; 951 u32 savePIPEB_GMCH_DATA_N; 952 u32 savePIPEA_DP_LINK_M; 953 u32 savePIPEB_DP_LINK_M; 954 u32 savePIPEA_DP_LINK_N; 955 u32 savePIPEB_DP_LINK_N; 956 u32 saveFDI_RXA_CTL; 957 u32 saveFDI_TXA_CTL; 958 u32 saveFDI_RXB_CTL; 959 u32 saveFDI_TXB_CTL; 960 u32 savePFA_CTL_1; 961 u32 savePFB_CTL_1; 962 u32 savePFA_WIN_SZ; 963 u32 savePFB_WIN_SZ; 964 u32 savePFA_WIN_POS; 965 u32 savePFB_WIN_POS; 966 u32 savePCH_DREF_CONTROL; 967 u32 saveDISP_ARB_CTL; 968 u32 savePIPEA_DATA_M1; 969 u32 savePIPEA_DATA_N1; 970 u32 savePIPEA_LINK_M1; 971 u32 savePIPEA_LINK_N1; 972 u32 savePIPEB_DATA_M1; 973 u32 savePIPEB_DATA_N1; 974 u32 savePIPEB_LINK_M1; 975 u32 savePIPEB_LINK_N1; 976 u32 saveMCHBAR_RENDER_STANDBY; 977 u32 savePCH_PORT_HOTPLUG; 978 }; 979 980 struct intel_gen6_power_mgmt { 981 /* work and pm_iir are protected by dev_priv->irq_lock */ 982 struct work_struct work; 983 u32 pm_iir; 984 985 /* Frequencies are stored in potentially platform dependent multiples. 986 * In other words, *_freq needs to be multiplied by X to be interesting. 987 * Soft limits are those which are used for the dynamic reclocking done 988 * by the driver (raise frequencies under heavy loads, and lower for 989 * lighter loads). Hard limits are those imposed by the hardware. 990 * 991 * A distinction is made for overclocking, which is never enabled by 992 * default, and is considered to be above the hard limit if it's 993 * possible at all. 994 */ 995 u8 cur_freq; /* Current frequency (cached, may not == HW) */ 996 u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */ 997 u8 max_freq_softlimit; /* Max frequency permitted by the driver */ 998 u8 max_freq; /* Maximum frequency, RP0 if not overclocking */ 999 u8 min_freq; /* AKA RPn. Minimum frequency */ 1000 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */ 1001 u8 rp1_freq; /* "less than" RP0 power/freqency */ 1002 u8 rp0_freq; /* Non-overclocked max frequency. */ 1003 1004 int last_adj; 1005 enum { LOW_POWER, BETWEEN, HIGH_POWER } power; 1006 1007 bool enabled; 1008 struct delayed_work delayed_resume_work; 1009 1010 /* 1011 * Protects RPS/RC6 register access and PCU communication. 1012 * Must be taken after struct_mutex if nested. 1013 */ 1014 struct mutex hw_lock; 1015 }; 1016 1017 /* defined intel_pm.c */ 1018 extern spinlock_t mchdev_lock; 1019 1020 struct intel_ilk_power_mgmt { 1021 u8 cur_delay; 1022 u8 min_delay; 1023 u8 max_delay; 1024 u8 fmax; 1025 u8 fstart; 1026 1027 u64 last_count1; 1028 unsigned long last_time1; 1029 unsigned long chipset_power; 1030 u64 last_count2; 1031 struct timespec last_time2; 1032 unsigned long gfx_power; 1033 u8 corr; 1034 1035 int c_m; 1036 int r_t; 1037 1038 struct drm_i915_gem_object *pwrctx; 1039 struct drm_i915_gem_object *renderctx; 1040 }; 1041 1042 struct drm_i915_private; 1043 struct i915_power_well; 1044 1045 struct i915_power_well_ops { 1046 /* 1047 * Synchronize the well's hw state to match the current sw state, for 1048 * example enable/disable it based on the current refcount. Called 1049 * during driver init and resume time, possibly after first calling 1050 * the enable/disable handlers. 1051 */ 1052 void (*sync_hw)(struct drm_i915_private *dev_priv, 1053 struct i915_power_well *power_well); 1054 /* 1055 * Enable the well and resources that depend on it (for example 1056 * interrupts located on the well). Called after the 0->1 refcount 1057 * transition. 1058 */ 1059 void (*enable)(struct drm_i915_private *dev_priv, 1060 struct i915_power_well *power_well); 1061 /* 1062 * Disable the well and resources that depend on it. Called after 1063 * the 1->0 refcount transition. 1064 */ 1065 void (*disable)(struct drm_i915_private *dev_priv, 1066 struct i915_power_well *power_well); 1067 /* Returns the hw enabled state. */ 1068 bool (*is_enabled)(struct drm_i915_private *dev_priv, 1069 struct i915_power_well *power_well); 1070 }; 1071 1072 /* Power well structure for haswell */ 1073 struct i915_power_well { 1074 const char *name; 1075 bool always_on; 1076 /* power well enable/disable usage count */ 1077 int count; 1078 unsigned long domains; 1079 unsigned long data; 1080 const struct i915_power_well_ops *ops; 1081 }; 1082 1083 struct i915_power_domains { 1084 /* 1085 * Power wells needed for initialization at driver init and suspend 1086 * time are on. They are kept on until after the first modeset. 1087 */ 1088 bool init_power_on; 1089 int power_well_count; 1090 1091 struct mutex lock; 1092 int domain_use_count[POWER_DOMAIN_NUM]; 1093 struct i915_power_well *power_wells; 1094 }; 1095 1096 struct i915_dri1_state { 1097 unsigned allow_batchbuffer : 1; 1098 u32 __iomem *gfx_hws_cpu_addr; 1099 1100 unsigned int cpp; 1101 int back_offset; 1102 int front_offset; 1103 int current_page; 1104 int page_flipping; 1105 1106 uint32_t counter; 1107 }; 1108 1109 struct i915_ums_state { 1110 /** 1111 * Flag if the X Server, and thus DRM, is not currently in 1112 * control of the device. 1113 * 1114 * This is set between LeaveVT and EnterVT. It needs to be 1115 * replaced with a semaphore. It also needs to be 1116 * transitioned away from for kernel modesetting. 1117 */ 1118 int mm_suspended; 1119 }; 1120 1121 #define MAX_L3_SLICES 2 1122 struct intel_l3_parity { 1123 u32 *remap_info[MAX_L3_SLICES]; 1124 struct work_struct error_work; 1125 int which_slice; 1126 }; 1127 1128 struct i915_gem_mm { 1129 /** Memory allocator for GTT stolen memory */ 1130 struct drm_mm stolen; 1131 /** List of all objects in gtt_space. Used to restore gtt 1132 * mappings on resume */ 1133 struct list_head bound_list; 1134 /** 1135 * List of objects which are not bound to the GTT (thus 1136 * are idle and not used by the GPU) but still have 1137 * (presumably uncached) pages still attached. 1138 */ 1139 struct list_head unbound_list; 1140 1141 /** Usable portion of the GTT for GEM */ 1142 unsigned long stolen_base; /* limited to low memory (32-bit) */ 1143 1144 /** PPGTT used for aliasing the PPGTT with the GTT */ 1145 struct i915_hw_ppgtt *aliasing_ppgtt; 1146 1147 struct shrinker inactive_shrinker; 1148 bool shrinker_no_lock_stealing; 1149 1150 /** LRU list of objects with fence regs on them. */ 1151 struct list_head fence_list; 1152 1153 /** 1154 * We leave the user IRQ off as much as possible, 1155 * but this means that requests will finish and never 1156 * be retired once the system goes idle. Set a timer to 1157 * fire periodically while the ring is running. When it 1158 * fires, go retire requests. 1159 */ 1160 struct delayed_work retire_work; 1161 1162 /** 1163 * When we detect an idle GPU, we want to turn on 1164 * powersaving features. So once we see that there 1165 * are no more requests outstanding and no more 1166 * arrive within a small period of time, we fire 1167 * off the idle_work. 1168 */ 1169 struct delayed_work idle_work; 1170 1171 /** 1172 * Are we in a non-interruptible section of code like 1173 * modesetting? 1174 */ 1175 bool interruptible; 1176 1177 /** 1178 * Is the GPU currently considered idle, or busy executing userspace 1179 * requests? Whilst idle, we attempt to power down the hardware and 1180 * display clocks. In order to reduce the effect on performance, there 1181 * is a slight delay before we do so. 1182 */ 1183 bool busy; 1184 1185 /** Bit 6 swizzling required for X tiling */ 1186 uint32_t bit_6_swizzle_x; 1187 /** Bit 6 swizzling required for Y tiling */ 1188 uint32_t bit_6_swizzle_y; 1189 1190 /* storage for physical objects */ 1191 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT]; 1192 1193 /* accounting, useful for userland debugging */ 1194 spinlock_t object_stat_lock; 1195 size_t object_memory; 1196 u32 object_count; 1197 }; 1198 1199 struct drm_i915_error_state_buf { 1200 unsigned bytes; 1201 unsigned size; 1202 int err; 1203 u8 *buf; 1204 loff_t start; 1205 loff_t pos; 1206 }; 1207 1208 struct i915_error_state_file_priv { 1209 struct drm_device *dev; 1210 struct drm_i915_error_state *error; 1211 }; 1212 1213 struct i915_gpu_error { 1214 /* For hangcheck timer */ 1215 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */ 1216 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD) 1217 /* Hang gpu twice in this window and your context gets banned */ 1218 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000) 1219 1220 struct timer_list hangcheck_timer; 1221 1222 /* For reset and error_state handling. */ 1223 spinlock_t lock; 1224 /* Protected by the above dev->gpu_error.lock. */ 1225 struct drm_i915_error_state *first_error; 1226 struct work_struct work; 1227 1228 1229 unsigned long missed_irq_rings; 1230 1231 /** 1232 * State variable controlling the reset flow and count 1233 * 1234 * This is a counter which gets incremented when reset is triggered, 1235 * and again when reset has been handled. So odd values (lowest bit set) 1236 * means that reset is in progress and even values that 1237 * (reset_counter >> 1):th reset was successfully completed. 1238 * 1239 * If reset is not completed succesfully, the I915_WEDGE bit is 1240 * set meaning that hardware is terminally sour and there is no 1241 * recovery. All waiters on the reset_queue will be woken when 1242 * that happens. 1243 * 1244 * This counter is used by the wait_seqno code to notice that reset 1245 * event happened and it needs to restart the entire ioctl (since most 1246 * likely the seqno it waited for won't ever signal anytime soon). 1247 * 1248 * This is important for lock-free wait paths, where no contended lock 1249 * naturally enforces the correct ordering between the bail-out of the 1250 * waiter and the gpu reset work code. 1251 */ 1252 atomic_t reset_counter; 1253 1254 #define I915_RESET_IN_PROGRESS_FLAG 1 1255 #define I915_WEDGED (1 << 31) 1256 1257 /** 1258 * Waitqueue to signal when the reset has completed. Used by clients 1259 * that wait for dev_priv->mm.wedged to settle. 1260 */ 1261 wait_queue_head_t reset_queue; 1262 1263 /* For gpu hang simulation. */ 1264 unsigned int stop_rings; 1265 1266 /* For missed irq/seqno simulation. */ 1267 unsigned int test_irq_rings; 1268 }; 1269 1270 enum modeset_restore { 1271 MODESET_ON_LID_OPEN, 1272 MODESET_DONE, 1273 MODESET_SUSPENDED, 1274 }; 1275 1276 struct ddi_vbt_port_info { 1277 uint8_t hdmi_level_shift; 1278 1279 uint8_t supports_dvi:1; 1280 uint8_t supports_hdmi:1; 1281 uint8_t supports_dp:1; 1282 }; 1283 1284 struct intel_vbt_data { 1285 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */ 1286 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */ 1287 1288 /* Feature bits */ 1289 unsigned int int_tv_support:1; 1290 unsigned int lvds_dither:1; 1291 unsigned int lvds_vbt:1; 1292 unsigned int int_crt_support:1; 1293 unsigned int lvds_use_ssc:1; 1294 unsigned int display_clock_mode:1; 1295 unsigned int fdi_rx_polarity_inverted:1; 1296 int lvds_ssc_freq; 1297 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */ 1298 1299 /* eDP */ 1300 int edp_rate; 1301 int edp_lanes; 1302 int edp_preemphasis; 1303 int edp_vswing; 1304 bool edp_initialized; 1305 bool edp_support; 1306 int edp_bpp; 1307 struct edp_power_seq edp_pps; 1308 1309 struct { 1310 u16 pwm_freq_hz; 1311 bool present; 1312 bool active_low_pwm; 1313 } backlight; 1314 1315 /* MIPI DSI */ 1316 struct { 1317 u16 panel_id; 1318 } dsi; 1319 1320 int crt_ddc_pin; 1321 1322 int child_dev_num; 1323 union child_device_config *child_dev; 1324 1325 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS]; 1326 }; 1327 1328 enum intel_ddb_partitioning { 1329 INTEL_DDB_PART_1_2, 1330 INTEL_DDB_PART_5_6, /* IVB+ */ 1331 }; 1332 1333 struct intel_wm_level { 1334 bool enable; 1335 uint32_t pri_val; 1336 uint32_t spr_val; 1337 uint32_t cur_val; 1338 uint32_t fbc_val; 1339 }; 1340 1341 struct ilk_wm_values { 1342 uint32_t wm_pipe[3]; 1343 uint32_t wm_lp[3]; 1344 uint32_t wm_lp_spr[3]; 1345 uint32_t wm_linetime[3]; 1346 bool enable_fbc_wm; 1347 enum intel_ddb_partitioning partitioning; 1348 }; 1349 1350 /* 1351 * This struct helps tracking the state needed for runtime PM, which puts the 1352 * device in PCI D3 state. Notice that when this happens, nothing on the 1353 * graphics device works, even register access, so we don't get interrupts nor 1354 * anything else. 1355 * 1356 * Every piece of our code that needs to actually touch the hardware needs to 1357 * either call intel_runtime_pm_get or call intel_display_power_get with the 1358 * appropriate power domain. 1359 * 1360 * Our driver uses the autosuspend delay feature, which means we'll only really 1361 * suspend if we stay with zero refcount for a certain amount of time. The 1362 * default value is currently very conservative (see intel_init_runtime_pm), but 1363 * it can be changed with the standard runtime PM files from sysfs. 1364 * 1365 * The irqs_disabled variable becomes true exactly after we disable the IRQs and 1366 * goes back to false exactly before we reenable the IRQs. We use this variable 1367 * to check if someone is trying to enable/disable IRQs while they're supposed 1368 * to be disabled. This shouldn't happen and we'll print some error messages in 1369 * case it happens, but if it actually happens we'll also update the variables 1370 * inside struct regsave so when we restore the IRQs they will contain the 1371 * latest expected values. 1372 * 1373 * For more, read the Documentation/power/runtime_pm.txt. 1374 */ 1375 struct i915_runtime_pm { 1376 bool suspended; 1377 bool irqs_disabled; 1378 1379 struct { 1380 uint32_t deimr; 1381 uint32_t sdeimr; 1382 uint32_t gtimr; 1383 uint32_t gtier; 1384 uint32_t gen6_pmimr; 1385 } regsave; 1386 }; 1387 1388 enum intel_pipe_crc_source { 1389 INTEL_PIPE_CRC_SOURCE_NONE, 1390 INTEL_PIPE_CRC_SOURCE_PLANE1, 1391 INTEL_PIPE_CRC_SOURCE_PLANE2, 1392 INTEL_PIPE_CRC_SOURCE_PF, 1393 INTEL_PIPE_CRC_SOURCE_PIPE, 1394 /* TV/DP on pre-gen5/vlv can't use the pipe source. */ 1395 INTEL_PIPE_CRC_SOURCE_TV, 1396 INTEL_PIPE_CRC_SOURCE_DP_B, 1397 INTEL_PIPE_CRC_SOURCE_DP_C, 1398 INTEL_PIPE_CRC_SOURCE_DP_D, 1399 INTEL_PIPE_CRC_SOURCE_AUTO, 1400 INTEL_PIPE_CRC_SOURCE_MAX, 1401 }; 1402 1403 struct intel_pipe_crc_entry { 1404 uint32_t frame; 1405 uint32_t crc[5]; 1406 }; 1407 1408 #define INTEL_PIPE_CRC_ENTRIES_NR 128 1409 struct intel_pipe_crc { 1410 spinlock_t lock; 1411 bool opened; /* exclusive access to the result file */ 1412 struct intel_pipe_crc_entry *entries; 1413 enum intel_pipe_crc_source source; 1414 int head, tail; 1415 wait_queue_head_t wq; 1416 }; 1417 1418 typedef struct drm_i915_private { 1419 struct drm_device *dev; 1420 struct kmem_cache *slab; 1421 1422 const struct intel_device_info info; 1423 1424 int relative_constants_mode; 1425 1426 void __iomem *regs; 1427 1428 struct intel_uncore uncore; 1429 1430 struct intel_gmbus gmbus[GMBUS_NUM_PORTS]; 1431 1432 1433 /** gmbus_mutex protects against concurrent usage of the single hw gmbus 1434 * controller on different i2c buses. */ 1435 struct mutex gmbus_mutex; 1436 1437 /** 1438 * Base address of the gmbus and gpio block. 1439 */ 1440 uint32_t gpio_mmio_base; 1441 1442 wait_queue_head_t gmbus_wait_queue; 1443 1444 struct pci_dev *bridge_dev; 1445 struct intel_ring_buffer ring[I915_NUM_RINGS]; 1446 uint32_t last_seqno, next_seqno; 1447 1448 drm_dma_handle_t *status_page_dmah; 1449 struct resource mch_res; 1450 1451 /* protects the irq masks */ 1452 spinlock_t irq_lock; 1453 1454 bool display_irqs_enabled; 1455 1456 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */ 1457 struct pm_qos_request pm_qos; 1458 1459 /* DPIO indirect register protection */ 1460 struct mutex dpio_lock; 1461 1462 /** Cached value of IMR to avoid reads in updating the bitfield */ 1463 union { 1464 u32 irq_mask; 1465 u32 de_irq_mask[I915_MAX_PIPES]; 1466 }; 1467 u32 gt_irq_mask; 1468 u32 pm_irq_mask; 1469 u32 pm_rps_events; 1470 u32 pipestat_irq_mask[I915_MAX_PIPES]; 1471 1472 struct work_struct hotplug_work; 1473 bool enable_hotplug_processing; 1474 struct { 1475 unsigned long hpd_last_jiffies; 1476 int hpd_cnt; 1477 enum { 1478 HPD_ENABLED = 0, 1479 HPD_DISABLED = 1, 1480 HPD_MARK_DISABLED = 2 1481 } hpd_mark; 1482 } hpd_stats[HPD_NUM_PINS]; 1483 u32 hpd_event_bits; 1484 struct timer_list hotplug_reenable_timer; 1485 1486 struct i915_fbc fbc; 1487 struct intel_opregion opregion; 1488 struct intel_vbt_data vbt; 1489 1490 /* overlay */ 1491 struct intel_overlay *overlay; 1492 1493 /* backlight registers and fields in struct intel_panel */ 1494 spinlock_t backlight_lock; 1495 1496 /* LVDS info */ 1497 bool no_aux_handshake; 1498 1499 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */ 1500 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */ 1501 int num_fence_regs; /* 8 on pre-965, 16 otherwise */ 1502 1503 unsigned int fsb_freq, mem_freq, is_ddr3; 1504 1505 /** 1506 * wq - Driver workqueue for GEM. 1507 * 1508 * NOTE: Work items scheduled here are not allowed to grab any modeset 1509 * locks, for otherwise the flushing done in the pageflip code will 1510 * result in deadlocks. 1511 */ 1512 struct workqueue_struct *wq; 1513 1514 /* Display functions */ 1515 struct drm_i915_display_funcs display; 1516 1517 /* PCH chipset type */ 1518 enum intel_pch pch_type; 1519 unsigned short pch_id; 1520 1521 unsigned long quirks; 1522 1523 enum modeset_restore modeset_restore; 1524 struct mutex modeset_restore_lock; 1525 1526 struct list_head vm_list; /* Global list of all address spaces */ 1527 struct i915_gtt gtt; /* VMA representing the global address space */ 1528 1529 struct i915_gem_mm mm; 1530 1531 /* Kernel Modesetting */ 1532 1533 struct sdvo_device_mapping sdvo_mappings[2]; 1534 1535 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES]; 1536 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES]; 1537 wait_queue_head_t pending_flip_queue; 1538 1539 #ifdef CONFIG_DEBUG_FS 1540 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES]; 1541 #endif 1542 1543 int num_shared_dpll; 1544 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS]; 1545 struct intel_ddi_plls ddi_plls; 1546 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV]; 1547 1548 /* Reclocking support */ 1549 bool render_reclock_avail; 1550 bool lvds_downclock_avail; 1551 /* indicates the reduced downclock for LVDS*/ 1552 int lvds_downclock; 1553 u16 orig_clock; 1554 1555 bool mchbar_need_disable; 1556 1557 struct intel_l3_parity l3_parity; 1558 1559 /* Cannot be determined by PCIID. You must always read a register. */ 1560 size_t ellc_size; 1561 1562 /* gen6+ rps state */ 1563 struct intel_gen6_power_mgmt rps; 1564 1565 /* ilk-only ips/rps state. Everything in here is protected by the global 1566 * mchdev_lock in intel_pm.c */ 1567 struct intel_ilk_power_mgmt ips; 1568 1569 struct i915_power_domains power_domains; 1570 1571 struct i915_psr psr; 1572 1573 struct i915_gpu_error gpu_error; 1574 1575 struct drm_i915_gem_object *vlv_pctx; 1576 1577 #ifdef CONFIG_DRM_I915_FBDEV 1578 /* list of fbdev register on this device */ 1579 struct intel_fbdev *fbdev; 1580 #endif 1581 1582 /* 1583 * The console may be contended at resume, but we don't 1584 * want it to block on it. 1585 */ 1586 struct work_struct console_resume_work; 1587 1588 struct drm_property *broadcast_rgb_property; 1589 struct drm_property *force_audio_property; 1590 1591 uint32_t hw_context_size; 1592 struct list_head context_list; 1593 1594 u32 fdi_rx_config; 1595 1596 u32 suspend_count; 1597 struct i915_suspend_saved_registers regfile; 1598 1599 struct { 1600 /* 1601 * Raw watermark latency values: 1602 * in 0.1us units for WM0, 1603 * in 0.5us units for WM1+. 1604 */ 1605 /* primary */ 1606 uint16_t pri_latency[5]; 1607 /* sprite */ 1608 uint16_t spr_latency[5]; 1609 /* cursor */ 1610 uint16_t cur_latency[5]; 1611 1612 /* current hardware state */ 1613 struct ilk_wm_values hw; 1614 } wm; 1615 1616 struct i915_runtime_pm pm; 1617 1618 /* Old dri1 support infrastructure, beware the dragons ya fools entering 1619 * here! */ 1620 struct i915_dri1_state dri1; 1621 /* Old ums support infrastructure, same warning applies. */ 1622 struct i915_ums_state ums; 1623 } drm_i915_private_t; 1624 1625 static inline struct drm_i915_private *to_i915(const struct drm_device *dev) 1626 { 1627 return dev->dev_private; 1628 } 1629 1630 /* Iterate over initialised rings */ 1631 #define for_each_ring(ring__, dev_priv__, i__) \ 1632 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \ 1633 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__))) 1634 1635 enum hdmi_force_audio { 1636 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */ 1637 HDMI_AUDIO_OFF, /* force turn off HDMI audio */ 1638 HDMI_AUDIO_AUTO, /* trust EDID */ 1639 HDMI_AUDIO_ON, /* force turn on HDMI audio */ 1640 }; 1641 1642 #define I915_GTT_OFFSET_NONE ((u32)-1) 1643 1644 struct drm_i915_gem_object_ops { 1645 /* Interface between the GEM object and its backing storage. 1646 * get_pages() is called once prior to the use of the associated set 1647 * of pages before to binding them into the GTT, and put_pages() is 1648 * called after we no longer need them. As we expect there to be 1649 * associated cost with migrating pages between the backing storage 1650 * and making them available for the GPU (e.g. clflush), we may hold 1651 * onto the pages after they are no longer referenced by the GPU 1652 * in case they may be used again shortly (for example migrating the 1653 * pages to a different memory domain within the GTT). put_pages() 1654 * will therefore most likely be called when the object itself is 1655 * being released or under memory pressure (where we attempt to 1656 * reap pages for the shrinker). 1657 */ 1658 int (*get_pages)(struct drm_i915_gem_object *); 1659 void (*put_pages)(struct drm_i915_gem_object *); 1660 }; 1661 1662 struct drm_i915_gem_object { 1663 struct drm_gem_object base; 1664 1665 const struct drm_i915_gem_object_ops *ops; 1666 1667 /** List of VMAs backed by this object */ 1668 struct list_head vma_list; 1669 1670 /** Stolen memory for this object, instead of being backed by shmem. */ 1671 struct drm_mm_node *stolen; 1672 struct list_head global_list; 1673 1674 struct list_head ring_list; 1675 /** Used in execbuf to temporarily hold a ref */ 1676 struct list_head obj_exec_link; 1677 1678 /** 1679 * This is set if the object is on the active lists (has pending 1680 * rendering and so a non-zero seqno), and is not set if it i s on 1681 * inactive (ready to be unbound) list. 1682 */ 1683 unsigned int active:1; 1684 1685 /** 1686 * This is set if the object has been written to since last bound 1687 * to the GTT 1688 */ 1689 unsigned int dirty:1; 1690 1691 /** 1692 * Fence register bits (if any) for this object. Will be set 1693 * as needed when mapped into the GTT. 1694 * Protected by dev->struct_mutex. 1695 */ 1696 signed int fence_reg:I915_MAX_NUM_FENCE_BITS; 1697 1698 /** 1699 * Advice: are the backing pages purgeable? 1700 */ 1701 unsigned int madv:2; 1702 1703 /** 1704 * Current tiling mode for the object. 1705 */ 1706 unsigned int tiling_mode:2; 1707 /** 1708 * Whether the tiling parameters for the currently associated fence 1709 * register have changed. Note that for the purposes of tracking 1710 * tiling changes we also treat the unfenced register, the register 1711 * slot that the object occupies whilst it executes a fenced 1712 * command (such as BLT on gen2/3), as a "fence". 1713 */ 1714 unsigned int fence_dirty:1; 1715 1716 /** 1717 * Is the object at the current location in the gtt mappable and 1718 * fenceable? Used to avoid costly recalculations. 1719 */ 1720 unsigned int map_and_fenceable:1; 1721 1722 /** 1723 * Whether the current gtt mapping needs to be mappable (and isn't just 1724 * mappable by accident). Track pin and fault separate for a more 1725 * accurate mappable working set. 1726 */ 1727 unsigned int fault_mappable:1; 1728 unsigned int pin_mappable:1; 1729 unsigned int pin_display:1; 1730 1731 /* 1732 * Is the GPU currently using a fence to access this buffer, 1733 */ 1734 unsigned int pending_fenced_gpu_access:1; 1735 unsigned int fenced_gpu_access:1; 1736 1737 unsigned int cache_level:3; 1738 1739 unsigned int has_aliasing_ppgtt_mapping:1; 1740 unsigned int has_global_gtt_mapping:1; 1741 unsigned int has_dma_mapping:1; 1742 1743 struct sg_table *pages; 1744 int pages_pin_count; 1745 1746 /* prime dma-buf support */ 1747 void *dma_buf_vmapping; 1748 int vmapping_count; 1749 1750 struct intel_ring_buffer *ring; 1751 1752 /** Breadcrumb of last rendering to the buffer. */ 1753 uint32_t last_read_seqno; 1754 uint32_t last_write_seqno; 1755 /** Breadcrumb of last fenced GPU access to the buffer. */ 1756 uint32_t last_fenced_seqno; 1757 1758 /** Current tiling stride for the object, if it's tiled. */ 1759 uint32_t stride; 1760 1761 /** References from framebuffers, locks out tiling changes. */ 1762 unsigned long framebuffer_references; 1763 1764 /** Record of address bit 17 of each page at last unbind. */ 1765 unsigned long *bit_17; 1766 1767 /** User space pin count and filp owning the pin */ 1768 unsigned long user_pin_count; 1769 struct drm_file *pin_filp; 1770 1771 /** for phy allocated objects */ 1772 struct drm_i915_gem_phys_object *phys_obj; 1773 }; 1774 1775 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base) 1776 1777 /** 1778 * Request queue structure. 1779 * 1780 * The request queue allows us to note sequence numbers that have been emitted 1781 * and may be associated with active buffers to be retired. 1782 * 1783 * By keeping this list, we can avoid having to do questionable 1784 * sequence-number comparisons on buffer last_rendering_seqnos, and associate 1785 * an emission time with seqnos for tracking how far ahead of the GPU we are. 1786 */ 1787 struct drm_i915_gem_request { 1788 /** On Which ring this request was generated */ 1789 struct intel_ring_buffer *ring; 1790 1791 /** GEM sequence number associated with this request. */ 1792 uint32_t seqno; 1793 1794 /** Position in the ringbuffer of the start of the request */ 1795 u32 head; 1796 1797 /** Position in the ringbuffer of the end of the request */ 1798 u32 tail; 1799 1800 /** Context related to this request */ 1801 struct i915_hw_context *ctx; 1802 1803 /** Batch buffer related to this request if any */ 1804 struct drm_i915_gem_object *batch_obj; 1805 1806 /** Time at which this request was emitted, in jiffies. */ 1807 unsigned long emitted_jiffies; 1808 1809 /** global list entry for this request */ 1810 struct list_head list; 1811 1812 struct drm_i915_file_private *file_priv; 1813 /** file_priv list entry for this request */ 1814 struct list_head client_list; 1815 }; 1816 1817 struct drm_i915_file_private { 1818 struct drm_i915_private *dev_priv; 1819 struct drm_file *file; 1820 1821 struct { 1822 spinlock_t lock; 1823 struct list_head request_list; 1824 struct delayed_work idle_work; 1825 } mm; 1826 struct idr context_idr; 1827 1828 struct i915_hw_context *private_default_ctx; 1829 atomic_t rps_wait_boost; 1830 }; 1831 1832 /* 1833 * A command that requires special handling by the command parser. 1834 */ 1835 struct drm_i915_cmd_descriptor { 1836 /* 1837 * Flags describing how the command parser processes the command. 1838 * 1839 * CMD_DESC_FIXED: The command has a fixed length if this is set, 1840 * a length mask if not set 1841 * CMD_DESC_SKIP: The command is allowed but does not follow the 1842 * standard length encoding for the opcode range in 1843 * which it falls 1844 * CMD_DESC_REJECT: The command is never allowed 1845 * CMD_DESC_REGISTER: The command should be checked against the 1846 * register whitelist for the appropriate ring 1847 * CMD_DESC_MASTER: The command is allowed if the submitting process 1848 * is the DRM master 1849 */ 1850 u32 flags; 1851 #define CMD_DESC_FIXED (1<<0) 1852 #define CMD_DESC_SKIP (1<<1) 1853 #define CMD_DESC_REJECT (1<<2) 1854 #define CMD_DESC_REGISTER (1<<3) 1855 #define CMD_DESC_BITMASK (1<<4) 1856 #define CMD_DESC_MASTER (1<<5) 1857 1858 /* 1859 * The command's unique identification bits and the bitmask to get them. 1860 * This isn't strictly the opcode field as defined in the spec and may 1861 * also include type, subtype, and/or subop fields. 1862 */ 1863 struct { 1864 u32 value; 1865 u32 mask; 1866 } cmd; 1867 1868 /* 1869 * The command's length. The command is either fixed length (i.e. does 1870 * not include a length field) or has a length field mask. The flag 1871 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has 1872 * a length mask. All command entries in a command table must include 1873 * length information. 1874 */ 1875 union { 1876 u32 fixed; 1877 u32 mask; 1878 } length; 1879 1880 /* 1881 * Describes where to find a register address in the command to check 1882 * against the ring's register whitelist. Only valid if flags has the 1883 * CMD_DESC_REGISTER bit set. 1884 */ 1885 struct { 1886 u32 offset; 1887 u32 mask; 1888 } reg; 1889 1890 #define MAX_CMD_DESC_BITMASKS 3 1891 /* 1892 * Describes command checks where a particular dword is masked and 1893 * compared against an expected value. If the command does not match 1894 * the expected value, the parser rejects it. Only valid if flags has 1895 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero 1896 * are valid. 1897 */ 1898 struct { 1899 u32 offset; 1900 u32 mask; 1901 u32 expected; 1902 } bits[MAX_CMD_DESC_BITMASKS]; 1903 }; 1904 1905 /* 1906 * A table of commands requiring special handling by the command parser. 1907 * 1908 * Each ring has an array of tables. Each table consists of an array of command 1909 * descriptors, which must be sorted with command opcodes in ascending order. 1910 */ 1911 struct drm_i915_cmd_table { 1912 const struct drm_i915_cmd_descriptor *table; 1913 int count; 1914 }; 1915 1916 #define INTEL_INFO(dev) (&to_i915(dev)->info) 1917 1918 #define IS_I830(dev) ((dev)->pdev->device == 0x3577) 1919 #define IS_845G(dev) ((dev)->pdev->device == 0x2562) 1920 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x) 1921 #define IS_I865G(dev) ((dev)->pdev->device == 0x2572) 1922 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g) 1923 #define IS_I915GM(dev) ((dev)->pdev->device == 0x2592) 1924 #define IS_I945G(dev) ((dev)->pdev->device == 0x2772) 1925 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm) 1926 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater) 1927 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline) 1928 #define IS_GM45(dev) ((dev)->pdev->device == 0x2A42) 1929 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x) 1930 #define IS_PINEVIEW_G(dev) ((dev)->pdev->device == 0xa001) 1931 #define IS_PINEVIEW_M(dev) ((dev)->pdev->device == 0xa011) 1932 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview) 1933 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33) 1934 #define IS_IRONLAKE_M(dev) ((dev)->pdev->device == 0x0046) 1935 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge) 1936 #define IS_IVB_GT1(dev) ((dev)->pdev->device == 0x0156 || \ 1937 (dev)->pdev->device == 0x0152 || \ 1938 (dev)->pdev->device == 0x015a) 1939 #define IS_SNB_GT1(dev) ((dev)->pdev->device == 0x0102 || \ 1940 (dev)->pdev->device == 0x0106 || \ 1941 (dev)->pdev->device == 0x010A) 1942 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview) 1943 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell) 1944 #define IS_BROADWELL(dev) (INTEL_INFO(dev)->gen == 8) 1945 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile) 1946 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \ 1947 ((dev)->pdev->device & 0xFF00) == 0x0C00) 1948 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \ 1949 (((dev)->pdev->device & 0xf) == 0x2 || \ 1950 ((dev)->pdev->device & 0xf) == 0x6 || \ 1951 ((dev)->pdev->device & 0xf) == 0xe)) 1952 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \ 1953 ((dev)->pdev->device & 0xFF00) == 0x0A00) 1954 #define IS_ULT(dev) (IS_HSW_ULT(dev) || IS_BDW_ULT(dev)) 1955 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \ 1956 ((dev)->pdev->device & 0x00F0) == 0x0020) 1957 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary) 1958 1959 /* 1960 * The genX designation typically refers to the render engine, so render 1961 * capability related checks should use IS_GEN, while display and other checks 1962 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular 1963 * chips, etc.). 1964 */ 1965 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2) 1966 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3) 1967 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4) 1968 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5) 1969 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6) 1970 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7) 1971 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8) 1972 1973 #define RENDER_RING (1<<RCS) 1974 #define BSD_RING (1<<VCS) 1975 #define BLT_RING (1<<BCS) 1976 #define VEBOX_RING (1<<VECS) 1977 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING) 1978 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING) 1979 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING) 1980 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc) 1981 #define HAS_WT(dev) (IS_HASWELL(dev) && to_i915(dev)->ellc_size) 1982 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws) 1983 1984 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6) 1985 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >= 6 && !IS_VALLEYVIEW(dev)) 1986 #define HAS_PPGTT(dev) (INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev) \ 1987 && !IS_BROADWELL(dev)) 1988 #define USES_PPGTT(dev) intel_enable_ppgtt(dev, false) 1989 #define USES_FULL_PPGTT(dev) intel_enable_ppgtt(dev, true) 1990 1991 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay) 1992 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical) 1993 1994 /* Early gen2 have a totally busted CS tlb and require pinned batches. */ 1995 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev)) 1996 /* 1997 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts 1998 * even when in MSI mode. This results in spurious interrupt warnings if the 1999 * legacy irq no. is shared with another device. The kernel then disables that 2000 * interrupt source and so prevents the other device from working properly. 2001 */ 2002 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5) 2003 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5) 2004 2005 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte 2006 * rows, which changed the alignment requirements and fence programming. 2007 */ 2008 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \ 2009 IS_I915GM(dev))) 2010 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev)) 2011 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev)) 2012 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev)) 2013 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv) 2014 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug) 2015 2016 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2) 2017 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr) 2018 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc) 2019 2020 #define HAS_IPS(dev) (IS_ULT(dev) || IS_BROADWELL(dev)) 2021 2022 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi) 2023 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg) 2024 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev)) 2025 #define HAS_PC8(dev) (IS_HASWELL(dev)) /* XXX HSW:ULX */ 2026 #define HAS_RUNTIME_PM(dev) (IS_HASWELL(dev)) 2027 2028 #define INTEL_PCH_DEVICE_ID_MASK 0xff00 2029 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00 2030 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00 2031 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00 2032 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00 2033 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00 2034 2035 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type) 2036 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT) 2037 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT) 2038 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX) 2039 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP) 2040 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE) 2041 2042 /* DPF == dynamic parity feature */ 2043 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) 2044 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev)) 2045 2046 #define GT_FREQUENCY_MULTIPLIER 50 2047 2048 #include "i915_trace.h" 2049 2050 extern const struct drm_ioctl_desc i915_ioctls[]; 2051 extern int i915_max_ioctl; 2052 2053 extern int i915_suspend(struct drm_device *dev, pm_message_t state); 2054 extern int i915_resume(struct drm_device *dev); 2055 extern int i915_master_create(struct drm_device *dev, struct drm_master *master); 2056 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master); 2057 2058 /* i915_params.c */ 2059 struct i915_params { 2060 int modeset; 2061 int panel_ignore_lid; 2062 unsigned int powersave; 2063 int semaphores; 2064 unsigned int lvds_downclock; 2065 int lvds_channel_mode; 2066 int panel_use_ssc; 2067 int vbt_sdvo_panel_type; 2068 int enable_rc6; 2069 int enable_fbc; 2070 int enable_ppgtt; 2071 int enable_psr; 2072 unsigned int preliminary_hw_support; 2073 int disable_power_well; 2074 int enable_ips; 2075 int invert_brightness; 2076 int enable_cmd_parser; 2077 /* leave bools at the end to not create holes */ 2078 bool enable_hangcheck; 2079 bool fastboot; 2080 bool prefault_disable; 2081 bool reset; 2082 bool disable_display; 2083 }; 2084 extern struct i915_params i915 __read_mostly; 2085 2086 /* i915_dma.c */ 2087 void i915_update_dri1_breadcrumb(struct drm_device *dev); 2088 extern void i915_kernel_lost_context(struct drm_device * dev); 2089 extern int i915_driver_load(struct drm_device *, unsigned long flags); 2090 extern int i915_driver_unload(struct drm_device *); 2091 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv); 2092 extern void i915_driver_lastclose(struct drm_device * dev); 2093 extern void i915_driver_preclose(struct drm_device *dev, 2094 struct drm_file *file_priv); 2095 extern void i915_driver_postclose(struct drm_device *dev, 2096 struct drm_file *file_priv); 2097 extern int i915_driver_device_is_agp(struct drm_device * dev); 2098 #ifdef CONFIG_COMPAT 2099 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd, 2100 unsigned long arg); 2101 #endif 2102 extern int i915_emit_box(struct drm_device *dev, 2103 struct drm_clip_rect *box, 2104 int DR1, int DR4); 2105 extern int intel_gpu_reset(struct drm_device *dev); 2106 extern int i915_reset(struct drm_device *dev); 2107 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv); 2108 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv); 2109 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv); 2110 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv); 2111 2112 extern void intel_console_resume(struct work_struct *work); 2113 2114 /* i915_irq.c */ 2115 void i915_queue_hangcheck(struct drm_device *dev); 2116 __printf(3, 4) 2117 void i915_handle_error(struct drm_device *dev, bool wedged, 2118 const char *fmt, ...); 2119 2120 void gen6_set_pm_mask(struct drm_i915_private *dev_priv, u32 pm_iir, 2121 int new_delay); 2122 extern void intel_irq_init(struct drm_device *dev); 2123 extern void intel_hpd_init(struct drm_device *dev); 2124 2125 extern void intel_uncore_sanitize(struct drm_device *dev); 2126 extern void intel_uncore_early_sanitize(struct drm_device *dev); 2127 extern void intel_uncore_init(struct drm_device *dev); 2128 extern void intel_uncore_check_errors(struct drm_device *dev); 2129 extern void intel_uncore_fini(struct drm_device *dev); 2130 2131 void 2132 i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe, 2133 u32 status_mask); 2134 2135 void 2136 i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe, 2137 u32 status_mask); 2138 2139 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv); 2140 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv); 2141 2142 /* i915_gem.c */ 2143 int i915_gem_init_ioctl(struct drm_device *dev, void *data, 2144 struct drm_file *file_priv); 2145 int i915_gem_create_ioctl(struct drm_device *dev, void *data, 2146 struct drm_file *file_priv); 2147 int i915_gem_pread_ioctl(struct drm_device *dev, void *data, 2148 struct drm_file *file_priv); 2149 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, 2150 struct drm_file *file_priv); 2151 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data, 2152 struct drm_file *file_priv); 2153 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data, 2154 struct drm_file *file_priv); 2155 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, 2156 struct drm_file *file_priv); 2157 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data, 2158 struct drm_file *file_priv); 2159 int i915_gem_execbuffer(struct drm_device *dev, void *data, 2160 struct drm_file *file_priv); 2161 int i915_gem_execbuffer2(struct drm_device *dev, void *data, 2162 struct drm_file *file_priv); 2163 int i915_gem_pin_ioctl(struct drm_device *dev, void *data, 2164 struct drm_file *file_priv); 2165 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data, 2166 struct drm_file *file_priv); 2167 int i915_gem_busy_ioctl(struct drm_device *dev, void *data, 2168 struct drm_file *file_priv); 2169 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data, 2170 struct drm_file *file); 2171 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, 2172 struct drm_file *file); 2173 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data, 2174 struct drm_file *file_priv); 2175 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data, 2176 struct drm_file *file_priv); 2177 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data, 2178 struct drm_file *file_priv); 2179 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data, 2180 struct drm_file *file_priv); 2181 int i915_gem_set_tiling(struct drm_device *dev, void *data, 2182 struct drm_file *file_priv); 2183 int i915_gem_get_tiling(struct drm_device *dev, void *data, 2184 struct drm_file *file_priv); 2185 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data, 2186 struct drm_file *file_priv); 2187 int i915_gem_wait_ioctl(struct drm_device *dev, void *data, 2188 struct drm_file *file_priv); 2189 void i915_gem_load(struct drm_device *dev); 2190 void *i915_gem_object_alloc(struct drm_device *dev); 2191 void i915_gem_object_free(struct drm_i915_gem_object *obj); 2192 void i915_gem_object_init(struct drm_i915_gem_object *obj, 2193 const struct drm_i915_gem_object_ops *ops); 2194 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev, 2195 size_t size); 2196 void i915_init_vm(struct drm_i915_private *dev_priv, 2197 struct i915_address_space *vm); 2198 void i915_gem_free_object(struct drm_gem_object *obj); 2199 void i915_gem_vma_destroy(struct i915_vma *vma); 2200 2201 #define PIN_MAPPABLE 0x1 2202 #define PIN_NONBLOCK 0x2 2203 #define PIN_GLOBAL 0x4 2204 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj, 2205 struct i915_address_space *vm, 2206 uint32_t alignment, 2207 unsigned flags); 2208 int __must_check i915_vma_unbind(struct i915_vma *vma); 2209 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj); 2210 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv); 2211 void i915_gem_release_mmap(struct drm_i915_gem_object *obj); 2212 void i915_gem_lastclose(struct drm_device *dev); 2213 2214 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj, 2215 int *needs_clflush); 2216 2217 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj); 2218 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n) 2219 { 2220 struct sg_page_iter sg_iter; 2221 2222 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n) 2223 return sg_page_iter_page(&sg_iter); 2224 2225 return NULL; 2226 } 2227 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj) 2228 { 2229 BUG_ON(obj->pages == NULL); 2230 obj->pages_pin_count++; 2231 } 2232 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj) 2233 { 2234 BUG_ON(obj->pages_pin_count == 0); 2235 obj->pages_pin_count--; 2236 } 2237 2238 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev); 2239 int i915_gem_object_sync(struct drm_i915_gem_object *obj, 2240 struct intel_ring_buffer *to); 2241 void i915_vma_move_to_active(struct i915_vma *vma, 2242 struct intel_ring_buffer *ring); 2243 int i915_gem_dumb_create(struct drm_file *file_priv, 2244 struct drm_device *dev, 2245 struct drm_mode_create_dumb *args); 2246 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev, 2247 uint32_t handle, uint64_t *offset); 2248 /** 2249 * Returns true if seq1 is later than seq2. 2250 */ 2251 static inline bool 2252 i915_seqno_passed(uint32_t seq1, uint32_t seq2) 2253 { 2254 return (int32_t)(seq1 - seq2) >= 0; 2255 } 2256 2257 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno); 2258 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno); 2259 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj); 2260 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj); 2261 2262 static inline bool 2263 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj) 2264 { 2265 if (obj->fence_reg != I915_FENCE_REG_NONE) { 2266 struct drm_i915_private *dev_priv = obj->base.dev->dev_private; 2267 dev_priv->fence_regs[obj->fence_reg].pin_count++; 2268 return true; 2269 } else 2270 return false; 2271 } 2272 2273 static inline void 2274 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj) 2275 { 2276 if (obj->fence_reg != I915_FENCE_REG_NONE) { 2277 struct drm_i915_private *dev_priv = obj->base.dev->dev_private; 2278 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0); 2279 dev_priv->fence_regs[obj->fence_reg].pin_count--; 2280 } 2281 } 2282 2283 struct drm_i915_gem_request * 2284 i915_gem_find_active_request(struct intel_ring_buffer *ring); 2285 2286 bool i915_gem_retire_requests(struct drm_device *dev); 2287 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error, 2288 bool interruptible); 2289 static inline bool i915_reset_in_progress(struct i915_gpu_error *error) 2290 { 2291 return unlikely(atomic_read(&error->reset_counter) 2292 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED)); 2293 } 2294 2295 static inline bool i915_terminally_wedged(struct i915_gpu_error *error) 2296 { 2297 return atomic_read(&error->reset_counter) & I915_WEDGED; 2298 } 2299 2300 static inline u32 i915_reset_count(struct i915_gpu_error *error) 2301 { 2302 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2; 2303 } 2304 2305 void i915_gem_reset(struct drm_device *dev); 2306 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force); 2307 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj); 2308 int __must_check i915_gem_init(struct drm_device *dev); 2309 int __must_check i915_gem_init_hw(struct drm_device *dev); 2310 int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice); 2311 void i915_gem_init_swizzling(struct drm_device *dev); 2312 void i915_gem_cleanup_ringbuffer(struct drm_device *dev); 2313 int __must_check i915_gpu_idle(struct drm_device *dev); 2314 int __must_check i915_gem_suspend(struct drm_device *dev); 2315 int __i915_add_request(struct intel_ring_buffer *ring, 2316 struct drm_file *file, 2317 struct drm_i915_gem_object *batch_obj, 2318 u32 *seqno); 2319 #define i915_add_request(ring, seqno) \ 2320 __i915_add_request(ring, NULL, NULL, seqno) 2321 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring, 2322 uint32_t seqno); 2323 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); 2324 int __must_check 2325 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, 2326 bool write); 2327 int __must_check 2328 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write); 2329 int __must_check 2330 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, 2331 u32 alignment, 2332 struct intel_ring_buffer *pipelined); 2333 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj); 2334 int i915_gem_attach_phys_object(struct drm_device *dev, 2335 struct drm_i915_gem_object *obj, 2336 int id, 2337 int align); 2338 void i915_gem_detach_phys_object(struct drm_device *dev, 2339 struct drm_i915_gem_object *obj); 2340 void i915_gem_free_all_phys_object(struct drm_device *dev); 2341 int i915_gem_open(struct drm_device *dev, struct drm_file *file); 2342 void i915_gem_release(struct drm_device *dev, struct drm_file *file); 2343 2344 uint32_t 2345 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode); 2346 uint32_t 2347 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size, 2348 int tiling_mode, bool fenced); 2349 2350 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, 2351 enum i915_cache_level cache_level); 2352 2353 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev, 2354 struct dma_buf *dma_buf); 2355 2356 struct dma_buf *i915_gem_prime_export(struct drm_device *dev, 2357 struct drm_gem_object *gem_obj, int flags); 2358 2359 void i915_gem_restore_fences(struct drm_device *dev); 2360 2361 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o, 2362 struct i915_address_space *vm); 2363 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o); 2364 bool i915_gem_obj_bound(struct drm_i915_gem_object *o, 2365 struct i915_address_space *vm); 2366 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o, 2367 struct i915_address_space *vm); 2368 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj, 2369 struct i915_address_space *vm); 2370 struct i915_vma * 2371 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj, 2372 struct i915_address_space *vm); 2373 2374 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj); 2375 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj) { 2376 struct i915_vma *vma; 2377 list_for_each_entry(vma, &obj->vma_list, vma_link) 2378 if (vma->pin_count > 0) 2379 return true; 2380 return false; 2381 } 2382 2383 /* Some GGTT VM helpers */ 2384 #define obj_to_ggtt(obj) \ 2385 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base) 2386 static inline bool i915_is_ggtt(struct i915_address_space *vm) 2387 { 2388 struct i915_address_space *ggtt = 2389 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base; 2390 return vm == ggtt; 2391 } 2392 2393 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj) 2394 { 2395 return i915_gem_obj_bound(obj, obj_to_ggtt(obj)); 2396 } 2397 2398 static inline unsigned long 2399 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj) 2400 { 2401 return i915_gem_obj_offset(obj, obj_to_ggtt(obj)); 2402 } 2403 2404 static inline unsigned long 2405 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj) 2406 { 2407 return i915_gem_obj_size(obj, obj_to_ggtt(obj)); 2408 } 2409 2410 static inline int __must_check 2411 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj, 2412 uint32_t alignment, 2413 unsigned flags) 2414 { 2415 return i915_gem_object_pin(obj, obj_to_ggtt(obj), alignment, flags | PIN_GLOBAL); 2416 } 2417 2418 static inline int 2419 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj) 2420 { 2421 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj)); 2422 } 2423 2424 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj); 2425 2426 /* i915_gem_context.c */ 2427 #define ctx_to_ppgtt(ctx) container_of((ctx)->vm, struct i915_hw_ppgtt, base) 2428 int __must_check i915_gem_context_init(struct drm_device *dev); 2429 void i915_gem_context_fini(struct drm_device *dev); 2430 void i915_gem_context_reset(struct drm_device *dev); 2431 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file); 2432 int i915_gem_context_enable(struct drm_i915_private *dev_priv); 2433 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file); 2434 int i915_switch_context(struct intel_ring_buffer *ring, 2435 struct i915_hw_context *to); 2436 struct i915_hw_context * 2437 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id); 2438 void i915_gem_context_free(struct kref *ctx_ref); 2439 static inline void i915_gem_context_reference(struct i915_hw_context *ctx) 2440 { 2441 kref_get(&ctx->ref); 2442 } 2443 2444 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx) 2445 { 2446 kref_put(&ctx->ref, i915_gem_context_free); 2447 } 2448 2449 static inline bool i915_gem_context_is_default(const struct i915_hw_context *c) 2450 { 2451 return c->id == DEFAULT_CONTEXT_ID; 2452 } 2453 2454 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data, 2455 struct drm_file *file); 2456 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data, 2457 struct drm_file *file); 2458 2459 /* i915_gem_evict.c */ 2460 int __must_check i915_gem_evict_something(struct drm_device *dev, 2461 struct i915_address_space *vm, 2462 int min_size, 2463 unsigned alignment, 2464 unsigned cache_level, 2465 unsigned flags); 2466 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle); 2467 int i915_gem_evict_everything(struct drm_device *dev); 2468 2469 /* i915_gem_gtt.c */ 2470 void i915_check_and_clear_faults(struct drm_device *dev); 2471 void i915_gem_suspend_gtt_mappings(struct drm_device *dev); 2472 void i915_gem_restore_gtt_mappings(struct drm_device *dev); 2473 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj); 2474 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj); 2475 void i915_gem_init_global_gtt(struct drm_device *dev); 2476 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start, 2477 unsigned long mappable_end, unsigned long end); 2478 int i915_gem_gtt_init(struct drm_device *dev); 2479 static inline void i915_gem_chipset_flush(struct drm_device *dev) 2480 { 2481 if (INTEL_INFO(dev)->gen < 6) 2482 intel_gtt_chipset_flush(); 2483 } 2484 int i915_gem_init_ppgtt(struct drm_device *dev, struct i915_hw_ppgtt *ppgtt); 2485 bool intel_enable_ppgtt(struct drm_device *dev, bool full); 2486 2487 /* i915_gem_stolen.c */ 2488 int i915_gem_init_stolen(struct drm_device *dev); 2489 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size); 2490 void i915_gem_stolen_cleanup_compression(struct drm_device *dev); 2491 void i915_gem_cleanup_stolen(struct drm_device *dev); 2492 struct drm_i915_gem_object * 2493 i915_gem_object_create_stolen(struct drm_device *dev, u32 size); 2494 struct drm_i915_gem_object * 2495 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, 2496 u32 stolen_offset, 2497 u32 gtt_offset, 2498 u32 size); 2499 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj); 2500 2501 /* i915_gem_tiling.c */ 2502 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj) 2503 { 2504 struct drm_i915_private *dev_priv = obj->base.dev->dev_private; 2505 2506 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 && 2507 obj->tiling_mode != I915_TILING_NONE; 2508 } 2509 2510 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev); 2511 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj); 2512 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj); 2513 2514 /* i915_gem_debug.c */ 2515 #if WATCH_LISTS 2516 int i915_verify_lists(struct drm_device *dev); 2517 #else 2518 #define i915_verify_lists(dev) 0 2519 #endif 2520 2521 /* i915_debugfs.c */ 2522 int i915_debugfs_init(struct drm_minor *minor); 2523 void i915_debugfs_cleanup(struct drm_minor *minor); 2524 #ifdef CONFIG_DEBUG_FS 2525 void intel_display_crc_init(struct drm_device *dev); 2526 #else 2527 static inline void intel_display_crc_init(struct drm_device *dev) {} 2528 #endif 2529 2530 /* i915_gpu_error.c */ 2531 __printf(2, 3) 2532 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...); 2533 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr, 2534 const struct i915_error_state_file_priv *error); 2535 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb, 2536 size_t count, loff_t pos); 2537 static inline void i915_error_state_buf_release( 2538 struct drm_i915_error_state_buf *eb) 2539 { 2540 kfree(eb->buf); 2541 } 2542 void i915_capture_error_state(struct drm_device *dev, bool wedge, 2543 const char *error_msg); 2544 void i915_error_state_get(struct drm_device *dev, 2545 struct i915_error_state_file_priv *error_priv); 2546 void i915_error_state_put(struct i915_error_state_file_priv *error_priv); 2547 void i915_destroy_error_state(struct drm_device *dev); 2548 2549 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone); 2550 const char *i915_cache_level_str(int type); 2551 2552 /* i915_cmd_parser.c */ 2553 void i915_cmd_parser_init_ring(struct intel_ring_buffer *ring); 2554 bool i915_needs_cmd_parser(struct intel_ring_buffer *ring); 2555 int i915_parse_cmds(struct intel_ring_buffer *ring, 2556 struct drm_i915_gem_object *batch_obj, 2557 u32 batch_start_offset, 2558 bool is_master); 2559 2560 /* i915_suspend.c */ 2561 extern int i915_save_state(struct drm_device *dev); 2562 extern int i915_restore_state(struct drm_device *dev); 2563 2564 /* i915_ums.c */ 2565 void i915_save_display_reg(struct drm_device *dev); 2566 void i915_restore_display_reg(struct drm_device *dev); 2567 2568 /* i915_sysfs.c */ 2569 void i915_setup_sysfs(struct drm_device *dev_priv); 2570 void i915_teardown_sysfs(struct drm_device *dev_priv); 2571 2572 /* intel_i2c.c */ 2573 extern int intel_setup_gmbus(struct drm_device *dev); 2574 extern void intel_teardown_gmbus(struct drm_device *dev); 2575 static inline bool intel_gmbus_is_port_valid(unsigned port) 2576 { 2577 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD); 2578 } 2579 2580 extern struct i2c_adapter *intel_gmbus_get_adapter( 2581 struct drm_i915_private *dev_priv, unsigned port); 2582 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed); 2583 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit); 2584 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) 2585 { 2586 return container_of(adapter, struct intel_gmbus, adapter)->force_bit; 2587 } 2588 extern void intel_i2c_reset(struct drm_device *dev); 2589 2590 /* intel_opregion.c */ 2591 struct intel_encoder; 2592 #ifdef CONFIG_ACPI 2593 extern int intel_opregion_setup(struct drm_device *dev); 2594 extern void intel_opregion_init(struct drm_device *dev); 2595 extern void intel_opregion_fini(struct drm_device *dev); 2596 extern void intel_opregion_asle_intr(struct drm_device *dev); 2597 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, 2598 bool enable); 2599 extern int intel_opregion_notify_adapter(struct drm_device *dev, 2600 pci_power_t state); 2601 #else 2602 static inline int intel_opregion_setup(struct drm_device *dev) { return 0; } 2603 static inline void intel_opregion_init(struct drm_device *dev) { return; } 2604 static inline void intel_opregion_fini(struct drm_device *dev) { return; } 2605 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; } 2606 static inline int 2607 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable) 2608 { 2609 return 0; 2610 } 2611 static inline int 2612 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state) 2613 { 2614 return 0; 2615 } 2616 #endif 2617 2618 /* intel_acpi.c */ 2619 #ifdef CONFIG_ACPI 2620 extern void intel_register_dsm_handler(void); 2621 extern void intel_unregister_dsm_handler(void); 2622 #else 2623 static inline void intel_register_dsm_handler(void) { return; } 2624 static inline void intel_unregister_dsm_handler(void) { return; } 2625 #endif /* CONFIG_ACPI */ 2626 2627 /* modesetting */ 2628 extern void intel_modeset_init_hw(struct drm_device *dev); 2629 extern void intel_modeset_suspend_hw(struct drm_device *dev); 2630 extern void intel_modeset_init(struct drm_device *dev); 2631 extern void intel_modeset_gem_init(struct drm_device *dev); 2632 extern void intel_modeset_cleanup(struct drm_device *dev); 2633 extern void intel_connector_unregister(struct intel_connector *); 2634 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state); 2635 extern void intel_modeset_setup_hw_state(struct drm_device *dev, 2636 bool force_restore); 2637 extern void i915_redisable_vga(struct drm_device *dev); 2638 extern void i915_redisable_vga_power_on(struct drm_device *dev); 2639 extern bool intel_fbc_enabled(struct drm_device *dev); 2640 extern void intel_disable_fbc(struct drm_device *dev); 2641 extern bool ironlake_set_drps(struct drm_device *dev, u8 val); 2642 extern void intel_init_pch_refclk(struct drm_device *dev); 2643 extern void gen6_set_rps(struct drm_device *dev, u8 val); 2644 extern void valleyview_set_rps(struct drm_device *dev, u8 val); 2645 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv); 2646 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv); 2647 extern void intel_detect_pch(struct drm_device *dev); 2648 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc); 2649 extern int intel_enable_rc6(const struct drm_device *dev); 2650 2651 extern bool i915_semaphore_is_enabled(struct drm_device *dev); 2652 int i915_reg_read_ioctl(struct drm_device *dev, void *data, 2653 struct drm_file *file); 2654 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data, 2655 struct drm_file *file); 2656 2657 /* overlay */ 2658 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev); 2659 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e, 2660 struct intel_overlay_error_state *error); 2661 2662 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev); 2663 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e, 2664 struct drm_device *dev, 2665 struct intel_display_error_state *error); 2666 2667 /* On SNB platform, before reading ring registers forcewake bit 2668 * must be set to prevent GT core from power down and stale values being 2669 * returned. 2670 */ 2671 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine); 2672 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine); 2673 void assert_force_wake_inactive(struct drm_i915_private *dev_priv); 2674 2675 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val); 2676 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val); 2677 2678 /* intel_sideband.c */ 2679 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr); 2680 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val); 2681 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr); 2682 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg); 2683 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); 2684 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg); 2685 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); 2686 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg); 2687 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); 2688 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg); 2689 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); 2690 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg); 2691 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); 2692 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg); 2693 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val); 2694 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg, 2695 enum intel_sbi_destination destination); 2696 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value, 2697 enum intel_sbi_destination destination); 2698 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg); 2699 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); 2700 2701 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val); 2702 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val); 2703 2704 void vlv_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine); 2705 void vlv_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine); 2706 2707 #define FORCEWAKE_VLV_RENDER_RANGE_OFFSET(reg) \ 2708 (((reg) >= 0x2000 && (reg) < 0x4000) ||\ 2709 ((reg) >= 0x5000 && (reg) < 0x8000) ||\ 2710 ((reg) >= 0xB000 && (reg) < 0x12000) ||\ 2711 ((reg) >= 0x2E000 && (reg) < 0x30000)) 2712 2713 #define FORCEWAKE_VLV_MEDIA_RANGE_OFFSET(reg)\ 2714 (((reg) >= 0x12000 && (reg) < 0x14000) ||\ 2715 ((reg) >= 0x22000 && (reg) < 0x24000) ||\ 2716 ((reg) >= 0x30000 && (reg) < 0x40000)) 2717 2718 #define FORCEWAKE_RENDER (1 << 0) 2719 #define FORCEWAKE_MEDIA (1 << 1) 2720 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA) 2721 2722 2723 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true) 2724 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true) 2725 2726 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true) 2727 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true) 2728 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false) 2729 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false) 2730 2731 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true) 2732 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true) 2733 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false) 2734 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false) 2735 2736 /* Be very careful with read/write 64-bit values. On 32-bit machines, they 2737 * will be implemented using 2 32-bit writes in an arbitrary order with 2738 * an arbitrary delay between them. This can cause the hardware to 2739 * act upon the intermediate value, possibly leading to corruption and 2740 * machine death. You have been warned. 2741 */ 2742 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true) 2743 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true) 2744 2745 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \ 2746 u32 upper = I915_READ(upper_reg); \ 2747 u32 lower = I915_READ(lower_reg); \ 2748 u32 tmp = I915_READ(upper_reg); \ 2749 if (upper != tmp) { \ 2750 upper = tmp; \ 2751 lower = I915_READ(lower_reg); \ 2752 WARN_ON(I915_READ(upper_reg) != upper); \ 2753 } \ 2754 (u64)upper << 32 | lower; }) 2755 2756 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg) 2757 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg) 2758 2759 /* "Broadcast RGB" property */ 2760 #define INTEL_BROADCAST_RGB_AUTO 0 2761 #define INTEL_BROADCAST_RGB_FULL 1 2762 #define INTEL_BROADCAST_RGB_LIMITED 2 2763 2764 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev) 2765 { 2766 if (HAS_PCH_SPLIT(dev)) 2767 return CPU_VGACNTRL; 2768 else if (IS_VALLEYVIEW(dev)) 2769 return VLV_VGACNTRL; 2770 else 2771 return VGACNTRL; 2772 } 2773 2774 static inline void __user *to_user_ptr(u64 address) 2775 { 2776 return (void __user *)(uintptr_t)address; 2777 } 2778 2779 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m) 2780 { 2781 unsigned long j = msecs_to_jiffies(m); 2782 2783 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1); 2784 } 2785 2786 static inline unsigned long 2787 timespec_to_jiffies_timeout(const struct timespec *value) 2788 { 2789 unsigned long j = timespec_to_jiffies(value); 2790 2791 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1); 2792 } 2793 2794 /* 2795 * If you need to wait X milliseconds between events A and B, but event B 2796 * doesn't happen exactly after event A, you record the timestamp (jiffies) of 2797 * when event A happened, then just before event B you call this function and 2798 * pass the timestamp as the first argument, and X as the second argument. 2799 */ 2800 static inline void 2801 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms) 2802 { 2803 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies; 2804 2805 /* 2806 * Don't re-read the value of "jiffies" every time since it may change 2807 * behind our back and break the math. 2808 */ 2809 tmp_jiffies = jiffies; 2810 target_jiffies = timestamp_jiffies + 2811 msecs_to_jiffies_timeout(to_wait_ms); 2812 2813 if (time_after(target_jiffies, tmp_jiffies)) { 2814 remaining_jiffies = target_jiffies - tmp_jiffies; 2815 while (remaining_jiffies) 2816 remaining_jiffies = 2817 schedule_timeout_uninterruptible(remaining_jiffies); 2818 } 2819 } 2820 2821 #endif 2822