drivers/gpu/drm/i915/i915_drv.h

   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 #include <uapi/drm/drm_fourcc.h>
  35
  36 #include <asm/hypervisor.h>
  37
  38 #include <linux/io-mapping.h>
  39 #include <linux/i2c.h>
  40 #include <linux/i2c-algo-bit.h>
  41 #include <linux/backlight.h>
  42 #include <linux/hash.h>
  43 #include <linux/intel-iommu.h>
  44 #include <linux/kref.h>
  45 #include <linux/mm_types.h>
  46 #include <linux/perf_event.h>
  47 #include <linux/pm_qos.h>
  48 #include <linux/dma-resv.h>
  49 #include <linux/shmem_fs.h>
  50 #include <linux/stackdepot.h>
  51 #include <linux/xarray.h>
  52
  53 #include <drm/intel-gtt.h>
  54 #include <drm/drm_gem.h>
  55 #include <drm/drm_auth.h>
  56 #include <drm/drm_cache.h>
  57 #include <drm/drm_util.h>
  58 #include <drm/drm_dsc.h>
  59 #include <drm/drm_atomic.h>
  60 #include <drm/drm_connector.h>
  61 #include <drm/i915_mei_hdcp_interface.h>
  62 #include <drm/ttm/ttm_device.h>
  63
  64 #include "i915_params.h"
  65 #include "i915_reg.h"
  66 #include "i915_utils.h"
  67
  68 #include "display/intel_bios.h"
  69 #include "display/intel_display.h"
  70 #include "display/intel_display_power.h"
  71 #include "display/intel_dmc.h"
  72 #include "display/intel_dpll_mgr.h"
  73 #include "display/intel_dsb.h"
  74 #include "display/intel_frontbuffer.h"
  75 #include "display/intel_global_state.h"
  76 #include "display/intel_gmbus.h"
  77 #include "display/intel_opregion.h"
  78
  79 #include "gem/i915_gem_context_types.h"
  80 #include "gem/i915_gem_shrinker.h"
  81 #include "gem/i915_gem_stolen.h"
  82 #include "gem/i915_gem_lmem.h"
  83
  84 #include "gt/intel_engine.h"
  85 #include "gt/intel_gt_types.h"
  86 #include "gt/intel_region_lmem.h"
  87 #include "gt/intel_workarounds.h"
  88 #include "gt/uc/intel_uc.h"
  89
  90 #include "intel_device_info.h"
  91 #include "intel_memory_region.h"
  92 #include "intel_pch.h"
  93 #include "intel_runtime_pm.h"
  94 #include "intel_step.h"
  95 #include "intel_uncore.h"
  96 #include "intel_wakeref.h"
  97 #include "intel_wopcm.h"
  98
  99 #include "i915_gem.h"
 100 #include "i915_gem_gtt.h"
 101 #include "i915_gpu_error.h"
 102 #include "i915_perf_types.h"
 103 #include "i915_request.h"
 104 #include "i915_scheduler.h"
 105 #include "gt/intel_timeline.h"
 106 #include "i915_vma.h"
 107 #include "i915_irq.h"
 108
 109
 110 /* General customization:
 111  */
 112
 113 #define DRIVER_NAME             "i915"
 114 #define DRIVER_DESC             "Intel Graphics"
 115 #define DRIVER_DATE             "20201103"
 116 #define DRIVER_TIMESTAMP        1604406085
 117
 118 struct drm_i915_gem_object;
 119
 120 enum hpd_pin {
 121         HPD_NONE = 0,
 122         HPD_TV = HPD_NONE,     /* TV is known to be unreliable */
 123         HPD_CRT,
 124         HPD_SDVO_B,
 125         HPD_SDVO_C,
 126         HPD_PORT_A,
 127         HPD_PORT_B,
 128         HPD_PORT_C,
 129         HPD_PORT_D,
 130         HPD_PORT_E,
 131         HPD_PORT_TC1,
 132         HPD_PORT_TC2,
 133         HPD_PORT_TC3,
 134         HPD_PORT_TC4,
 135         HPD_PORT_TC5,
 136         HPD_PORT_TC6,
 137
 138         HPD_NUM_PINS
 139 };
 140
 141 #define for_each_hpd_pin(__pin) \
 142         for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
 143
 144 /* Threshold == 5 for long IRQs, 50 for short */
 145 #define HPD_STORM_DEFAULT_THRESHOLD 50
 146
 147 struct i915_hotplug {
 148         struct delayed_work hotplug_work;
 149
 150         const u32 *hpd, *pch_hpd;
 151
 152         struct {
 153                 unsigned long last_jiffies;
 154                 int count;
 155                 enum {
 156                         HPD_ENABLED = 0,
 157                         HPD_DISABLED = 1,
 158                         HPD_MARK_DISABLED = 2
 159                 } state;
 160         } stats[HPD_NUM_PINS];
 161         u32 event_bits;
 162         u32 retry_bits;
 163         struct delayed_work reenable_work;
 164
 165         u32 long_port_mask;
 166         u32 short_port_mask;
 167         struct work_struct dig_port_work;
 168
 169         struct work_struct poll_init_work;
 170         bool poll_enabled;
 171
 172         unsigned int hpd_storm_threshold;
 173         /* Whether or not to count short HPD IRQs in HPD storms */
 174         u8 hpd_short_storm_enabled;
 175
 176         /*
 177          * if we get a HPD irq from DP and a HPD irq from non-DP
 178          * the non-DP HPD could block the workqueue on a mode config
 179          * mutex getting, that userspace may have taken. However
 180          * userspace is waiting on the DP workqueue to run which is
 181          * blocked behind the non-DP one.
 182          */
 183         struct workqueue_struct *dp_wq;
 184 };
 185
 186 #define I915_GEM_GPU_DOMAINS \
 187         (I915_GEM_DOMAIN_RENDER | \
 188          I915_GEM_DOMAIN_SAMPLER | \
 189          I915_GEM_DOMAIN_COMMAND | \
 190          I915_GEM_DOMAIN_INSTRUCTION | \
 191          I915_GEM_DOMAIN_VERTEX)
 192
 193 struct drm_i915_private;
 194 struct i915_mm_struct;
 195 struct i915_mmu_object;
 196
 197 struct drm_i915_file_private {
 198         struct drm_i915_private *dev_priv;
 199
 200         union {
 201                 struct drm_file *file;
 202                 struct rcu_head rcu;
 203         };
 204
 205         /** @proto_context_lock: Guards all struct i915_gem_proto_context
 206          * operations
 207          *
 208          * This not only guards @proto_context_xa, but is always held
 209          * whenever we manipulate any struct i915_gem_proto_context,
 210          * including finalizing it on first actual use of the GEM context.
 211          *
 212          * See i915_gem_proto_context.
 213          */
 214         struct mutex proto_context_lock;
 215
 216         /** @proto_context_xa: xarray of struct i915_gem_proto_context
 217          *
 218          * Historically, the context uAPI allowed for two methods of
 219          * setting context parameters: SET_CONTEXT_PARAM and
 220          * CONTEXT_CREATE_EXT_SETPARAM.  The former is allowed to be called
 221          * at any time while the later happens as part of
 222          * GEM_CONTEXT_CREATE.  Everything settable via one was settable
 223          * via the other.  While some params are fairly simple and setting
 224          * them on a live context is harmless such as the context priority,
 225          * others are far trickier such as the VM or the set of engines.
 226          * In order to swap out the VM, for instance, we have to delay
 227          * until all current in-flight work is complete, swap in the new
 228          * VM, and then continue.  This leads to a plethora of potential
 229          * race conditions we'd really rather avoid.
 230          *
 231          * We have since disallowed setting these more complex parameters
 232          * on active contexts.  This works by delaying the creation of the
 233          * actual context until after the client is done configuring it
 234          * with SET_CONTEXT_PARAM.  From the perspective of the client, it
 235          * has the same u32 context ID the whole time.  From the
 236          * perspective of i915, however, it's a struct i915_gem_proto_context
 237          * right up until the point where we attempt to do something which
 238          * the proto-context can't handle.  Then the struct i915_gem_context
 239          * gets created.
 240          *
 241          * This is accomplished via a little xarray dance.  When
 242          * GEM_CONTEXT_CREATE is called, we create a struct
 243          * i915_gem_proto_context, reserve a slot in @context_xa but leave
 244          * it NULL, and place the proto-context in the corresponding slot
 245          * in @proto_context_xa.  Then, in i915_gem_context_lookup(), we
 246          * first check @context_xa.  If it's there, we return the struct
 247          * i915_gem_context and we're done.  If it's not, we look in
 248          * @proto_context_xa and, if we find it there, we create the actual
 249          * context and kill the proto-context.
 250          *
 251          * In order for this dance to work properly, everything which ever
 252          * touches a struct i915_gem_proto_context is guarded by
 253          * @proto_context_lock, including context creation.  Yes, this
 254          * means context creation now takes a giant global lock but it
 255          * can't really be helped and that should never be on any driver's
 256          * fast-path anyway.
 257          */
 258         struct xarray proto_context_xa;
 259
 260         /** @context_xa: xarray of fully created i915_gem_context
 261          *
 262          * Write access to this xarray is guarded by @proto_context_lock.
 263          * Otherwise, writers may race with finalize_create_context_locked().
 264          *
 265          * See @proto_context_xa.
 266          */
 267         struct xarray context_xa;
 268         struct xarray vm_xa;
 269
 270         unsigned int bsd_engine;
 271
 272 /*
 273  * Every context ban increments per client ban score. Also
 274  * hangs in short succession increments ban score. If ban threshold
 275  * is reached, client is considered banned and submitting more work
 276  * will fail. This is a stop gap measure to limit the badly behaving
 277  * clients access to gpu. Note that unbannable contexts never increment
 278  * the client ban score.
 279  */
 280 #define I915_CLIENT_SCORE_HANG_FAST     1
 281 #define   I915_CLIENT_FAST_HANG_JIFFIES (60 * HZ)
 282 #define I915_CLIENT_SCORE_CONTEXT_BAN   3
 283 #define I915_CLIENT_SCORE_BANNED        9
 284         /** ban_score: Accumulated score of all ctx bans and fast hangs. */
 285         atomic_t ban_score;
 286         unsigned long hang_timestamp;
 287 };
 288
 289 /* Interface history:
 290  *
 291  * 1.1: Original.
 292  * 1.2: Add Power Management
 293  * 1.3: Add vblank support
 294  * 1.4: Fix cmdbuffer path, add heap destroy
 295  * 1.5: Add vblank pipe configuration
 296  * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
 297  *      - Support vertical blank on secondary display pipe
 298  */
 299 #define DRIVER_MAJOR            1
 300 #define DRIVER_MINOR            6
 301 #define DRIVER_PATCHLEVEL       0
 302
 303 struct intel_overlay;
 304 struct intel_overlay_error_state;
 305
 306 struct sdvo_device_mapping {
 307         u8 initialized;
 308         u8 dvo_port;
 309         u8 slave_addr;
 310         u8 dvo_wiring;
 311         u8 i2c_pin;
 312         u8 ddc_pin;
 313 };
 314
 315 struct intel_connector;
 316 struct intel_encoder;
 317 struct intel_atomic_state;
 318 struct intel_cdclk_config;
 319 struct intel_cdclk_state;
 320 struct intel_cdclk_vals;
 321 struct intel_initial_plane_config;
 322 struct intel_crtc;
 323 struct intel_limit;
 324 struct dpll;
 325
 326 struct drm_i915_display_funcs {
 327         void (*get_cdclk)(struct drm_i915_private *dev_priv,
 328                           struct intel_cdclk_config *cdclk_config);
 329         void (*set_cdclk)(struct drm_i915_private *dev_priv,
 330                           const struct intel_cdclk_config *cdclk_config,
 331                           enum pipe pipe);
 332         int (*bw_calc_min_cdclk)(struct intel_atomic_state *state);
 333         int (*get_fifo_size)(struct drm_i915_private *dev_priv,
 334                              enum i9xx_plane_id i9xx_plane);
 335         int (*compute_pipe_wm)(struct intel_atomic_state *state,
 336                                struct intel_crtc *crtc);
 337         int (*compute_intermediate_wm)(struct intel_atomic_state *state,
 338                                        struct intel_crtc *crtc);
 339         void (*initial_watermarks)(struct intel_atomic_state *state,
 340                                    struct intel_crtc *crtc);
 341         void (*atomic_update_watermarks)(struct intel_atomic_state *state,
 342                                          struct intel_crtc *crtc);
 343         void (*optimize_watermarks)(struct intel_atomic_state *state,
 344                                     struct intel_crtc *crtc);
 345         int (*compute_global_watermarks)(struct intel_atomic_state *state);
 346         void (*update_wm)(struct intel_crtc *crtc);
 347         int (*modeset_calc_cdclk)(struct intel_cdclk_state *state);
 348         u8 (*calc_voltage_level)(int cdclk);
 349         /* Returns the active state of the crtc, and if the crtc is active,
 350          * fills out the pipe-config with the hw state. */
 351         bool (*get_pipe_config)(struct intel_crtc *,
 352                                 struct intel_crtc_state *);
 353         void (*get_initial_plane_config)(struct intel_crtc *,
 354                                          struct intel_initial_plane_config *);
 355         int (*crtc_compute_clock)(struct intel_crtc *crtc,
 356                                   struct intel_crtc_state *crtc_state);
 357         void (*crtc_enable)(struct intel_atomic_state *state,
 358                             struct intel_crtc *crtc);
 359         void (*crtc_disable)(struct intel_atomic_state *state,
 360                              struct intel_crtc *crtc);
 361         void (*commit_modeset_enables)(struct intel_atomic_state *state);
 362         void (*commit_modeset_disables)(struct intel_atomic_state *state);
 363         void (*audio_codec_enable)(struct intel_encoder *encoder,
 364                                    const struct intel_crtc_state *crtc_state,
 365                                    const struct drm_connector_state *conn_state);
 366         void (*audio_codec_disable)(struct intel_encoder *encoder,
 367                                     const struct intel_crtc_state *old_crtc_state,
 368                                     const struct drm_connector_state *old_conn_state);
 369         void (*fdi_link_train)(struct intel_crtc *crtc,
 370                                const struct intel_crtc_state *crtc_state);
 371         void (*init_clock_gating)(struct drm_i915_private *dev_priv);
 372         void (*hpd_irq_setup)(struct drm_i915_private *dev_priv);
 373         /* clock updates for mode set */
 374         /* cursor updates */
 375         /* render clock increase/decrease */
 376         /* display clock increase/decrease */
 377         /* pll clock increase/decrease */
 378
 379         int (*color_check)(struct intel_crtc_state *crtc_state);
 380         /*
 381          * Program double buffered color management registers during
 382          * vblank evasion. The registers should then latch during the
 383          * next vblank start, alongside any other double buffered registers
 384          * involved with the same commit.
 385          */
 386         void (*color_commit)(const struct intel_crtc_state *crtc_state);
 387         /*
 388          * Load LUTs (and other single buffered color management
 389          * registers). Will (hopefully) be called during the vblank
 390          * following the latching of any double buffered registers
 391          * involved with the same commit.
 392          */
 393         void (*load_luts)(const struct intel_crtc_state *crtc_state);
 394         void (*read_luts)(struct intel_crtc_state *crtc_state);
 395 };
 396
 397
 398 #define I915_COLOR_UNEVICTABLE (-1) /* a non-vma sharing the address space */
 399
 400 struct intel_fbc {
 401         /* This is always the inner lock when overlapping with struct_mutex and
 402          * it's the outer lock when overlapping with stolen_lock. */
 403         struct mutex lock;
 404         unsigned int possible_framebuffer_bits;
 405         unsigned int busy_bits;
 406         struct intel_crtc *crtc;
 407
 408         struct drm_mm_node compressed_fb;
 409         struct drm_mm_node compressed_llb;
 410
 411         u8 limit;
 412
 413         bool false_color;
 414
 415         bool active;
 416         bool activated;
 417         bool flip_pending;
 418
 419         bool underrun_detected;
 420         struct work_struct underrun_work;
 421
 422         /*
 423          * Due to the atomic rules we can't access some structures without the
 424          * appropriate locking, so we cache information here in order to avoid
 425          * these problems.
 426          */
 427         struct intel_fbc_state_cache {
 428                 struct {
 429                         unsigned int mode_flags;
 430                         u32 hsw_bdw_pixel_rate;
 431                 } crtc;
 432
 433                 struct {
 434                         unsigned int rotation;
 435                         int src_w;
 436                         int src_h;
 437                         bool visible;
 438                         /*
 439                          * Display surface base address adjustement for
 440                          * pageflips. Note that on gen4+ this only adjusts up
 441                          * to a tile, offsets within a tile are handled in
 442                          * the hw itself (with the TILEOFF register).
 443                          */
 444                         int adjusted_x;
 445                         int adjusted_y;
 446
 447                         u16 pixel_blend_mode;
 448                 } plane;
 449
 450                 struct {
 451                         const struct drm_format_info *format;
 452                         unsigned int stride;
 453                         u64 modifier;
 454                 } fb;
 455
 456                 unsigned int fence_y_offset;
 457                 u16 gen9_wa_cfb_stride;
 458                 u16 interval;
 459                 s8 fence_id;
 460                 bool psr2_active;
 461         } state_cache;
 462
 463         /*
 464          * This structure contains everything that's relevant to program the
 465          * hardware registers. When we want to figure out if we need to disable
 466          * and re-enable FBC for a new configuration we just check if there's
 467          * something different in the struct. The genx_fbc_activate functions
 468          * are supposed to read from it in order to program the registers.
 469          */
 470         struct intel_fbc_reg_params {
 471                 struct {
 472                         enum pipe pipe;
 473                         enum i9xx_plane_id i9xx_plane;
 474                 } crtc;
 475
 476                 struct {
 477                         const struct drm_format_info *format;
 478                         unsigned int stride;
 479                         u64 modifier;
 480                 } fb;
 481
 482                 int cfb_size;
 483                 unsigned int fence_y_offset;
 484                 u16 gen9_wa_cfb_stride;
 485                 u16 interval;
 486                 s8 fence_id;
 487                 bool plane_visible;
 488         } params;
 489
 490         const char *no_fbc_reason;
 491 };
 492
 493 /*
 494  * HIGH_RR is the highest eDP panel refresh rate read from EDID
 495  * LOW_RR is the lowest eDP panel refresh rate found from EDID
 496  * parsing for same resolution.
 497  */
 498 enum drrs_refresh_rate_type {
 499         DRRS_HIGH_RR,
 500         DRRS_LOW_RR,
 501         DRRS_MAX_RR, /* RR count */
 502 };
 503
 504 enum drrs_support_type {
 505         DRRS_NOT_SUPPORTED = 0,
 506         STATIC_DRRS_SUPPORT = 1,
 507         SEAMLESS_DRRS_SUPPORT = 2
 508 };
 509
 510 struct intel_dp;
 511 struct i915_drrs {
 512         struct mutex mutex;
 513         struct delayed_work work;
 514         struct intel_dp *dp;
 515         unsigned busy_frontbuffer_bits;
 516         enum drrs_refresh_rate_type refresh_rate_type;
 517         enum drrs_support_type type;
 518 };
 519
 520 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
 521 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
 522 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
 523 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
 524 #define QUIRK_INCREASE_T12_DELAY (1<<6)
 525 #define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
 526 #define QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK (1<<8)
 527
 528 struct intel_fbdev;
 529 struct intel_fbc_work;
 530
 531 struct intel_gmbus {
 532         struct i2c_adapter adapter;
 533 #define GMBUS_FORCE_BIT_RETRY (1U << 31)
 534         u32 force_bit;
 535         u32 reg0;
 536         i915_reg_t gpio_reg;
 537         struct i2c_algo_bit_data bit_algo;
 538         struct drm_i915_private *dev_priv;
 539 };
 540
 541 struct i915_suspend_saved_registers {
 542         u32 saveDSPARB;
 543         u32 saveSWF0[16];
 544         u32 saveSWF1[16];
 545         u32 saveSWF3[3];
 546         u16 saveGCDGMBUS;
 547 };
 548
 549 struct vlv_s0ix_state;
 550
 551 #define MAX_L3_SLICES 2
 552 struct intel_l3_parity {
 553         u32 *remap_info[MAX_L3_SLICES];
 554         struct work_struct error_work;
 555         int which_slice;
 556 };
 557
 558 struct i915_gem_mm {
 559         /*
 560          * Shortcut for the stolen region. This points to either
 561          * INTEL_REGION_STOLEN_SMEM for integrated platforms, or
 562          * INTEL_REGION_STOLEN_LMEM for discrete, or NULL if the device doesn't
 563          * support stolen.
 564          */
 565         struct intel_memory_region *stolen_region;
 566         /** Memory allocator for GTT stolen memory */
 567         struct drm_mm stolen;
 568         /** Protects the usage of the GTT stolen memory allocator. This is
 569          * always the inner lock when overlapping with struct_mutex. */
 570         struct mutex stolen_lock;
 571
 572         /* Protects bound_list/unbound_list and #drm_i915_gem_object.mm.link */
 573         spinlock_t obj_lock;
 574
 575         /**
 576          * List of objects which are purgeable.
 577          */
 578         struct list_head purge_list;
 579
 580         /**
 581          * List of objects which have allocated pages and are shrinkable.
 582          */
 583         struct list_head shrink_list;
 584
 585         /**
 586          * List of objects which are pending destruction.
 587          */
 588         struct llist_head free_list;
 589         struct work_struct free_work;
 590         /**
 591          * Count of objects pending destructions. Used to skip needlessly
 592          * waiting on an RCU barrier if no objects are waiting to be freed.
 593          */
 594         atomic_t free_count;
 595
 596         /**
 597          * tmpfs instance used for shmem backed objects
 598          */
 599         struct vfsmount *gemfs;
 600
 601         struct intel_memory_region *regions[INTEL_REGION_UNKNOWN];
 602
 603         struct notifier_block oom_notifier;
 604         struct notifier_block vmap_notifier;
 605         struct shrinker shrinker;
 606
 607 #ifdef CONFIG_MMU_NOTIFIER
 608         /**
 609          * notifier_lock for mmu notifiers, memory may not be allocated
 610          * while holding this lock.
 611          */
 612         rwlock_t notifier_lock;
 613 #endif
 614
 615         /* shrinker accounting, also useful for userland debugging */
 616         u64 shrink_memory;
 617         u32 shrink_count;
 618 };
 619
 620 #define I915_IDLE_ENGINES_TIMEOUT (200) /* in ms */
 621
 622 unsigned long i915_fence_context_timeout(const struct drm_i915_private *i915,
 623                                          u64 context);
 624
 625 static inline unsigned long
 626 i915_fence_timeout(const struct drm_i915_private *i915)
 627 {
 628         return i915_fence_context_timeout(i915, U64_MAX);
 629 }
 630
 631 /* Amount of SAGV/QGV points, BSpec precisely defines this */
 632 #define I915_NUM_QGV_POINTS 8
 633
 634 #define HAS_HW_SAGV_WM(i915) (DISPLAY_VER(i915) >= 13 && !IS_DGFX(i915))
 635
 636 struct ddi_vbt_port_info {
 637         /* Non-NULL if port present. */
 638         struct intel_bios_encoder_data *devdata;
 639
 640         int max_tmds_clock;
 641
 642         /* This is an index in the HDMI/DVI DDI buffer translation table. */
 643         u8 hdmi_level_shift;
 644         u8 hdmi_level_shift_set:1;
 645
 646         u8 alternate_aux_channel;
 647         u8 alternate_ddc_pin;
 648
 649         int dp_max_link_rate;           /* 0 for not limited by VBT */
 650 };
 651
 652 enum psr_lines_to_wait {
 653         PSR_0_LINES_TO_WAIT = 0,
 654         PSR_1_LINE_TO_WAIT,
 655         PSR_4_LINES_TO_WAIT,
 656         PSR_8_LINES_TO_WAIT
 657 };
 658
 659 struct intel_vbt_data {
 660         /* bdb version */
 661         u16 version;
 662
 663         struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
 664         struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
 665
 666         /* Feature bits */
 667         unsigned int int_tv_support:1;
 668         unsigned int lvds_dither:1;
 669         unsigned int int_crt_support:1;
 670         unsigned int lvds_use_ssc:1;
 671         unsigned int int_lvds_support:1;
 672         unsigned int display_clock_mode:1;
 673         unsigned int fdi_rx_polarity_inverted:1;
 674         unsigned int panel_type:4;
 675         int lvds_ssc_freq;
 676         unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
 677         enum drm_panel_orientation orientation;
 678
 679         enum drrs_support_type drrs_type;
 680
 681         struct {
 682                 int rate;
 683                 int lanes;
 684                 int preemphasis;
 685                 int vswing;
 686                 bool low_vswing;
 687                 bool initialized;
 688                 int bpp;
 689                 struct edp_power_seq pps;
 690                 bool hobl;
 691         } edp;
 692
 693         struct {
 694                 bool enable;
 695                 bool full_link;
 696                 bool require_aux_wakeup;
 697                 int idle_frames;
 698                 enum psr_lines_to_wait lines_to_wait;
 699                 int tp1_wakeup_time_us;
 700                 int tp2_tp3_wakeup_time_us;
 701                 int psr2_tp2_tp3_wakeup_time_us;
 702         } psr;
 703
 704         struct {
 705                 u16 pwm_freq_hz;
 706                 bool present;
 707                 bool active_low_pwm;
 708                 u8 min_brightness;      /* min_brightness/255 of max */
 709                 u8 controller;          /* brightness controller number */
 710                 enum intel_backlight_type type;
 711         } backlight;
 712
 713         /* MIPI DSI */
 714         struct {
 715                 u16 panel_id;
 716                 struct mipi_config *config;
 717                 struct mipi_pps_data *pps;
 718                 u16 bl_ports;
 719                 u16 cabc_ports;
 720                 u8 seq_version;
 721                 u32 size;
 722                 u8 *data;
 723                 const u8 *sequence[MIPI_SEQ_MAX];
 724                 u8 *deassert_seq; /* Used by fixup_mipi_sequences() */
 725                 enum drm_panel_orientation orientation;
 726         } dsi;
 727
 728         int crt_ddc_pin;
 729
 730         struct list_head display_devices;
 731
 732         struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
 733         struct sdvo_device_mapping sdvo_mappings[2];
 734 };
 735
 736 enum intel_ddb_partitioning {
 737         INTEL_DDB_PART_1_2,
 738         INTEL_DDB_PART_5_6, /* IVB+ */
 739 };
 740
 741 struct ilk_wm_values {
 742         u32 wm_pipe[3];
 743         u32 wm_lp[3];
 744         u32 wm_lp_spr[3];
 745         bool enable_fbc_wm;
 746         enum intel_ddb_partitioning partitioning;
 747 };
 748
 749 struct g4x_pipe_wm {
 750         u16 plane[I915_MAX_PLANES];
 751         u16 fbc;
 752 };
 753
 754 struct g4x_sr_wm {
 755         u16 plane;
 756         u16 cursor;
 757         u16 fbc;
 758 };
 759
 760 struct vlv_wm_ddl_values {
 761         u8 plane[I915_MAX_PLANES];
 762 };
 763
 764 struct vlv_wm_values {
 765         struct g4x_pipe_wm pipe[3];
 766         struct g4x_sr_wm sr;
 767         struct vlv_wm_ddl_values ddl[3];
 768         u8 level;
 769         bool cxsr;
 770 };
 771
 772 struct g4x_wm_values {
 773         struct g4x_pipe_wm pipe[2];
 774         struct g4x_sr_wm sr;
 775         struct g4x_sr_wm hpll;
 776         bool cxsr;
 777         bool hpll_en;
 778         bool fbc_en;
 779 };
 780
 781 struct skl_ddb_entry {
 782         u16 start, end; /* in number of blocks, 'end' is exclusive */
 783 };
 784
 785 static inline u16 skl_ddb_entry_size(const struct skl_ddb_entry *entry)
 786 {
 787         return entry->end - entry->start;
 788 }
 789
 790 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
 791                                        const struct skl_ddb_entry *e2)
 792 {
 793         if (e1->start == e2->start && e1->end == e2->end)
 794                 return true;
 795
 796         return false;
 797 }
 798
 799 struct i915_frontbuffer_tracking {
 800         spinlock_t lock;
 801
 802         /*
 803          * Tracking bits for delayed frontbuffer flushing du to gpu activity or
 804          * scheduled flips.
 805          */
 806         unsigned busy_bits;
 807         unsigned flip_bits;
 808 };
 809
 810 struct i915_virtual_gpu {
 811         struct mutex lock; /* serialises sending of g2v_notify command pkts */
 812         bool active;
 813         u32 caps;
 814 };
 815
 816 struct intel_cdclk_config {
 817         unsigned int cdclk, vco, ref, bypass;
 818         u8 voltage_level;
 819 };
 820
 821 struct i915_selftest_stash {
 822         atomic_t counter;
 823         struct ida mock_region_instances;
 824 };
 825
 826 struct drm_i915_private {
 827         struct drm_device drm;
 828
 829         /* FIXME: Device release actions should all be moved to drmm_ */
 830         bool do_release;
 831
 832         /* i915 device parameters */
 833         struct i915_params params;
 834
 835         const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
 836         struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
 837         struct intel_driver_caps caps;
 838
 839         /**
 840          * Data Stolen Memory - aka "i915 stolen memory" gives us the start and
 841          * end of stolen which we can optionally use to create GEM objects
 842          * backed by stolen memory. Note that stolen_usable_size tells us
 843          * exactly how much of this we are actually allowed to use, given that
 844          * some portion of it is in fact reserved for use by hardware functions.
 845          */
 846         struct resource dsm;
 847         /**
 848          * Reseved portion of Data Stolen Memory
 849          */
 850         struct resource dsm_reserved;
 851
 852         /*
 853          * Stolen memory is segmented in hardware with different portions
 854          * offlimits to certain functions.
 855          *
 856          * The drm_mm is initialised to the total accessible range, as found
 857          * from the PCI config. On Broadwell+, this is further restricted to
 858          * avoid the first page! The upper end of stolen memory is reserved for
 859          * hardware functions and similarly removed from the accessible range.
 860          */
 861         resource_size_t stolen_usable_size;     /* Total size minus reserved ranges */
 862
 863         struct intel_uncore uncore;
 864         struct intel_uncore_mmio_debug mmio_debug;
 865
 866         struct i915_virtual_gpu vgpu;
 867
 868         struct intel_gvt *gvt;
 869
 870         struct intel_wopcm wopcm;
 871
 872         struct intel_dmc dmc;
 873
 874         struct intel_gmbus gmbus[GMBUS_NUM_PINS];
 875
 876         /** gmbus_mutex protects against concurrent usage of the single hw gmbus
 877          * controller on different i2c buses. */
 878         struct mutex gmbus_mutex;
 879
 880         /**
 881          * Base address of where the gmbus and gpio blocks are located (either
 882          * on PCH or on SoC for platforms without PCH).
 883          */
 884         u32 gpio_mmio_base;
 885
 886         u32 hsw_psr_mmio_adjust;
 887
 888         /* MMIO base address for MIPI regs */
 889         u32 mipi_mmio_base;
 890
 891         u32 pps_mmio_base;
 892
 893         wait_queue_head_t gmbus_wait_queue;
 894
 895         struct pci_dev *bridge_dev;
 896
 897         struct rb_root uabi_engines;
 898
 899         struct resource mch_res;
 900
 901         /* protects the irq masks */
 902         spinlock_t irq_lock;
 903
 904         bool display_irqs_enabled;
 905
 906         /* Sideband mailbox protection */
 907         struct mutex sb_lock;
 908         struct pm_qos_request sb_qos;
 909
 910         /** Cached value of IMR to avoid reads in updating the bitfield */
 911         union {
 912                 u32 irq_mask;
 913                 u32 de_irq_mask[I915_MAX_PIPES];
 914         };
 915         u32 pipestat_irq_mask[I915_MAX_PIPES];
 916
 917         struct i915_hotplug hotplug;
 918         struct intel_fbc fbc;
 919         struct i915_drrs drrs;
 920         struct intel_opregion opregion;
 921         struct intel_vbt_data vbt;
 922
 923         bool preserve_bios_swizzle;
 924
 925         /* overlay */
 926         struct intel_overlay *overlay;
 927
 928         /* backlight registers and fields in struct intel_panel */
 929         struct mutex backlight_lock;
 930
 931         /* protects panel power sequencer state */
 932         struct mutex pps_mutex;
 933
 934         unsigned int fsb_freq, mem_freq, is_ddr3;
 935         unsigned int skl_preferred_vco_freq;
 936         unsigned int max_cdclk_freq;
 937
 938         unsigned int max_dotclk_freq;
 939         unsigned int hpll_freq;
 940         unsigned int fdi_pll_freq;
 941         unsigned int czclk_freq;
 942
 943         struct {
 944                 /* The current hardware cdclk configuration */
 945                 struct intel_cdclk_config hw;
 946
 947                 /* cdclk, divider, and ratio table from bspec */
 948                 const struct intel_cdclk_vals *table;
 949
 950                 struct intel_global_obj obj;
 951         } cdclk;
 952
 953         struct {
 954                 /* The current hardware dbuf configuration */
 955                 u8 enabled_slices;
 956
 957                 struct intel_global_obj obj;
 958         } dbuf;
 959
 960         /**
 961          * wq - Driver workqueue for GEM.
 962          *
 963          * NOTE: Work items scheduled here are not allowed to grab any modeset
 964          * locks, for otherwise the flushing done in the pageflip code will
 965          * result in deadlocks.
 966          */
 967         struct workqueue_struct *wq;
 968
 969         /* ordered wq for modesets */
 970         struct workqueue_struct *modeset_wq;
 971         /* unbound hipri wq for page flips/plane updates */
 972         struct workqueue_struct *flip_wq;
 973
 974         /* Display functions */
 975         struct drm_i915_display_funcs display;
 976
 977         /* PCH chipset type */
 978         enum intel_pch pch_type;
 979         unsigned short pch_id;
 980
 981         unsigned long quirks;
 982
 983         struct drm_atomic_state *modeset_restore_state;
 984         struct drm_modeset_acquire_ctx reset_ctx;
 985
 986         struct i915_ggtt ggtt; /* VM representing the global address space */
 987
 988         struct i915_gem_mm mm;
 989
 990         /* Kernel Modesetting */
 991
 992         struct intel_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
 993         struct intel_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
 994
 995         /**
 996          * dpll and cdclk state is protected by connection_mutex
 997          * dpll.lock serializes intel_{prepare,enable,disable}_shared_dpll.
 998          * Must be global rather than per dpll, because on some platforms plls
 999          * share registers.
1000          */
1001         struct {
1002                 struct mutex lock;
1003
1004                 int num_shared_dpll;
1005                 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1006                 const struct intel_dpll_mgr *mgr;
1007
1008                 struct {
1009                         int nssc;
1010                         int ssc;
1011                 } ref_clks;
1012         } dpll;
1013
1014         struct list_head global_obj_list;
1015
1016         /*
1017          * For reading active_pipes holding any crtc lock is
1018          * sufficient, for writing must hold all of them.
1019          */
1020         u8 active_pipes;
1021
1022         struct i915_wa_list gt_wa_list;
1023
1024         struct i915_frontbuffer_tracking fb_tracking;
1025
1026         struct intel_atomic_helper {
1027                 struct llist_head free_list;
1028                 struct work_struct free_work;
1029         } atomic_helper;
1030
1031         bool mchbar_need_disable;
1032
1033         struct intel_l3_parity l3_parity;
1034
1035         /*
1036          * HTI (aka HDPORT) state read during initial hw readout.  Most
1037          * platforms don't have HTI, so this will just stay 0.  Those that do
1038          * will use this later to figure out which PLLs and PHYs are unavailable
1039          * for driver usage.
1040          */
1041         u32 hti_state;
1042
1043         /*
1044          * edram size in MB.
1045          * Cannot be determined by PCIID. You must always read a register.
1046          */
1047         u32 edram_size_mb;
1048
1049         struct i915_power_domains power_domains;
1050
1051         struct i915_gpu_error gpu_error;
1052
1053         struct drm_i915_gem_object *vlv_pctx;
1054
1055         /* list of fbdev register on this device */
1056         struct intel_fbdev *fbdev;
1057         struct work_struct fbdev_suspend_work;
1058
1059         struct drm_property *broadcast_rgb_property;
1060         struct drm_property *force_audio_property;
1061
1062         /* hda/i915 audio component */
1063         struct i915_audio_component *audio_component;
1064         bool audio_component_registered;
1065         /**
1066          * av_mutex - mutex for audio/video sync
1067          *
1068          */
1069         struct mutex av_mutex;
1070         int audio_power_refcount;
1071         u32 audio_freq_cntrl;
1072
1073         u32 fdi_rx_config;
1074
1075         /* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
1076         u32 chv_phy_control;
1077         /*
1078          * Shadows for CHV DPLL_MD regs to keep the state
1079          * checker somewhat working in the presence hardware
1080          * crappiness (can't read out DPLL_MD for pipes B & C).
1081          */
1082         u32 chv_dpll_md[I915_MAX_PIPES];
1083         u32 bxt_phy_grc;
1084
1085         u32 suspend_count;
1086         bool power_domains_suspended;
1087         struct i915_suspend_saved_registers regfile;
1088         struct vlv_s0ix_state *vlv_s0ix_state;
1089
1090         enum {
1091                 I915_SAGV_UNKNOWN = 0,
1092                 I915_SAGV_DISABLED,
1093                 I915_SAGV_ENABLED,
1094                 I915_SAGV_NOT_CONTROLLED
1095         } sagv_status;
1096
1097         u32 sagv_block_time_us;
1098
1099         struct {
1100                 /*
1101                  * Raw watermark latency values:
1102                  * in 0.1us units for WM0,
1103                  * in 0.5us units for WM1+.
1104                  */
1105                 /* primary */
1106                 u16 pri_latency[5];
1107                 /* sprite */
1108                 u16 spr_latency[5];
1109                 /* cursor */
1110                 u16 cur_latency[5];
1111                 /*
1112                  * Raw watermark memory latency values
1113                  * for SKL for all 8 levels
1114                  * in 1us units.
1115                  */
1116                 u16 skl_latency[8];
1117
1118                 /* current hardware state */
1119                 union {
1120                         struct ilk_wm_values hw;
1121                         struct vlv_wm_values vlv;
1122                         struct g4x_wm_values g4x;
1123                 };
1124
1125                 u8 max_level;
1126
1127                 /*
1128                  * Should be held around atomic WM register writing; also
1129                  * protects * intel_crtc->wm.active and
1130                  * crtc_state->wm.need_postvbl_update.
1131                  */
1132                 struct mutex wm_mutex;
1133         } wm;
1134
1135         struct dram_info {
1136                 bool wm_lv_0_adjust_needed;
1137                 u8 num_channels;
1138                 bool symmetric_memory;
1139                 enum intel_dram_type {
1140                         INTEL_DRAM_UNKNOWN,
1141                         INTEL_DRAM_DDR3,
1142                         INTEL_DRAM_DDR4,
1143                         INTEL_DRAM_LPDDR3,
1144                         INTEL_DRAM_LPDDR4,
1145                         INTEL_DRAM_DDR5,
1146                         INTEL_DRAM_LPDDR5,
1147                 } type;
1148                 u8 num_qgv_points;
1149         } dram_info;
1150
1151         struct intel_bw_info {
1152                 /* for each QGV point */
1153                 unsigned int deratedbw[I915_NUM_QGV_POINTS];
1154                 u8 num_qgv_points;
1155                 u8 num_planes;
1156         } max_bw[6];
1157
1158         struct intel_global_obj bw_obj;
1159
1160         struct intel_runtime_pm runtime_pm;
1161
1162         struct i915_perf perf;
1163
1164         /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1165         struct intel_gt gt;
1166
1167         struct {
1168                 struct i915_gem_contexts {
1169                         spinlock_t lock; /* locks list */
1170                         struct list_head list;
1171                 } contexts;
1172
1173                 /*
1174                  * We replace the local file with a global mappings as the
1175                  * backing storage for the mmap is on the device and not
1176                  * on the struct file, and we do not want to prolong the
1177                  * lifetime of the local fd. To minimise the number of
1178                  * anonymous inodes we create, we use a global singleton to
1179                  * share the global mapping.
1180                  */
1181                 struct file *mmap_singleton;
1182         } gem;
1183
1184         u8 framestart_delay;
1185
1186         /* Window2 specifies time required to program DSB (Window2) in number of scan lines */
1187         u8 window2_delay;
1188
1189         u8 pch_ssc_use;
1190
1191         /* For i915gm/i945gm vblank irq workaround */
1192         u8 vblank_enabled;
1193
1194         bool irq_enabled;
1195
1196         /* perform PHY state sanity checks? */
1197         bool chv_phy_assert[2];
1198
1199         bool ipc_enabled;
1200
1201         /* Used to save the pipe-to-encoder mapping for audio */
1202         struct intel_encoder *av_enc_map[I915_MAX_PIPES];
1203
1204         /* necessary resource sharing with HDMI LPE audio driver. */
1205         struct {
1206                 struct platform_device *platdev;
1207                 int     irq;
1208         } lpe_audio;
1209
1210         struct i915_pmu pmu;
1211
1212         struct i915_hdcp_comp_master *hdcp_master;
1213         bool hdcp_comp_added;
1214
1215         /* Mutex to protect the above hdcp component related values. */
1216         struct mutex hdcp_comp_mutex;
1217
1218         /* The TTM device structure. */
1219         struct ttm_device bdev;
1220
1221         I915_SELFTEST_DECLARE(struct i915_selftest_stash selftest;)
1222
1223         /*
1224          * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1225          * will be rejected. Instead look for a better place.
1226          */
1227 };
1228
1229 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1230 {
1231         return container_of(dev, struct drm_i915_private, drm);
1232 }
1233
1234 static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
1235 {
1236         return dev_get_drvdata(kdev);
1237 }
1238
1239 static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
1240 {
1241         return pci_get_drvdata(pdev);
1242 }
1243
1244 /* Simple iterator over all initialised engines */
1245 #define for_each_engine(engine__, dev_priv__, id__) \
1246         for ((id__) = 0; \
1247              (id__) < I915_NUM_ENGINES; \
1248              (id__)++) \
1249                 for_each_if ((engine__) = (dev_priv__)->engine[(id__)])
1250
1251 /* Iterator over subset of engines selected by mask */
1252 #define for_each_engine_masked(engine__, gt__, mask__, tmp__) \
1253         for ((tmp__) = (mask__) & (gt__)->info.engine_mask; \
1254              (tmp__) ? \
1255              ((engine__) = (gt__)->engine[__mask_next_bit(tmp__)]), 1 : \
1256              0;)
1257
1258 #define rb_to_uabi_engine(rb) \
1259         rb_entry_safe(rb, struct intel_engine_cs, uabi_node)
1260
1261 #define for_each_uabi_engine(engine__, i915__) \
1262         for ((engine__) = rb_to_uabi_engine(rb_first(&(i915__)->uabi_engines));\
1263              (engine__); \
1264              (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1265
1266 #define for_each_uabi_class_engine(engine__, class__, i915__) \
1267         for ((engine__) = intel_engine_lookup_user((i915__), (class__), 0); \
1268              (engine__) && (engine__)->uabi_class == (class__); \
1269              (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1270
1271 #define I915_GTT_OFFSET_NONE ((u32)-1)
1272
1273 /*
1274  * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1275  * considered to be the frontbuffer for the given plane interface-wise. This
1276  * doesn't mean that the hw necessarily already scans it out, but that any
1277  * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1278  *
1279  * We have one bit per pipe and per scanout plane type.
1280  */
1281 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
1282 #define INTEL_FRONTBUFFER(pipe, plane_id) ({ \
1283         BUILD_BUG_ON(INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES > 32); \
1284         BUILD_BUG_ON(I915_MAX_PLANES > INTEL_FRONTBUFFER_BITS_PER_PIPE); \
1285         BIT((plane_id) + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)); \
1286 })
1287 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1288         BIT(INTEL_FRONTBUFFER_BITS_PER_PIPE - 1 + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1289 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1290         GENMASK(INTEL_FRONTBUFFER_BITS_PER_PIPE * ((pipe) + 1) - 1, \
1291                 INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1292
1293 #define INTEL_INFO(dev_priv)    (&(dev_priv)->__info)
1294 #define RUNTIME_INFO(dev_priv)  (&(dev_priv)->__runtime)
1295 #define DRIVER_CAPS(dev_priv)   (&(dev_priv)->caps)
1296
1297 #define INTEL_DEVID(dev_priv)   (RUNTIME_INFO(dev_priv)->device_id)
1298
1299 #define IP_VER(ver, rel)              ((ver) << 8 | (rel))
1300
1301 #define GRAPHICS_VER(i915)              (INTEL_INFO(i915)->graphics_ver)
1302 #define GRAPHICS_VER_FULL(i915)         IP_VER(INTEL_INFO(i915)->graphics_ver, \
1303                                                INTEL_INFO(i915)->graphics_rel)
1304 #define IS_GRAPHICS_VER(i915, from, until) \
1305         (GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
1306
1307 #define MEDIA_VER(i915)                 (INTEL_INFO(i915)->media_ver)
1308 #define MEDIA_VER_FULL(i915)            IP_VER(INTEL_INFO(i915)->media_ver, \
1309                                                INTEL_INFO(i915)->media_rel)
1310 #define IS_MEDIA_VER(i915, from, until) \
1311         (MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
1312
1313 #define DISPLAY_VER(i915)       (INTEL_INFO(i915)->display.ver)
1314 #define IS_DISPLAY_VER(i915, from, until) \
1315         (DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))
1316
1317 #define INTEL_REVID(dev_priv)   (to_pci_dev((dev_priv)->drm.dev)->revision)
1318
1319 #define HAS_DSB(dev_priv)       (INTEL_INFO(dev_priv)->display.has_dsb)
1320
1321 #define INTEL_DISPLAY_STEP(__i915) (RUNTIME_INFO(__i915)->step.display_step)
1322 #define INTEL_GT_STEP(__i915) (RUNTIME_INFO(__i915)->step.gt_step)
1323
1324 #define IS_DISPLAY_STEP(__i915, since, until) \
1325         (drm_WARN_ON(&(__i915)->drm, INTEL_DISPLAY_STEP(__i915) == STEP_NONE), \
1326          INTEL_DISPLAY_STEP(__i915) >= (since) && INTEL_DISPLAY_STEP(__i915) <= (until))
1327
1328 #define IS_GT_STEP(__i915, since, until) \
1329         (drm_WARN_ON(&(__i915)->drm, INTEL_GT_STEP(__i915) == STEP_NONE), \
1330          INTEL_GT_STEP(__i915) >= (since) && INTEL_GT_STEP(__i915) < (until))
1331
1332 static __always_inline unsigned int
1333 __platform_mask_index(const struct intel_runtime_info *info,
1334                       enum intel_platform p)
1335 {
1336         const unsigned int pbits =
1337                 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1338
1339         /* Expand the platform_mask array if this fails. */
1340         BUILD_BUG_ON(INTEL_MAX_PLATFORMS >
1341                      pbits * ARRAY_SIZE(info->platform_mask));
1342
1343         return p / pbits;
1344 }
1345
1346 static __always_inline unsigned int
1347 __platform_mask_bit(const struct intel_runtime_info *info,
1348                     enum intel_platform p)
1349 {
1350         const unsigned int pbits =
1351                 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1352
1353         return p % pbits + INTEL_SUBPLATFORM_BITS;
1354 }
1355
1356 static inline u32
1357 intel_subplatform(const struct intel_runtime_info *info, enum intel_platform p)
1358 {
1359         const unsigned int pi = __platform_mask_index(info, p);
1360
1361         return info->platform_mask[pi] & INTEL_SUBPLATFORM_MASK;
1362 }
1363
1364 static __always_inline bool
1365 IS_PLATFORM(const struct drm_i915_private *i915, enum intel_platform p)
1366 {
1367         const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1368         const unsigned int pi = __platform_mask_index(info, p);
1369         const unsigned int pb = __platform_mask_bit(info, p);
1370
1371         BUILD_BUG_ON(!__builtin_constant_p(p));
1372
1373         return info->platform_mask[pi] & BIT(pb);
1374 }
1375
1376 static __always_inline bool
1377 IS_SUBPLATFORM(const struct drm_i915_private *i915,
1378                enum intel_platform p, unsigned int s)
1379 {
1380         const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1381         const unsigned int pi = __platform_mask_index(info, p);
1382         const unsigned int pb = __platform_mask_bit(info, p);
1383         const unsigned int msb = BITS_PER_TYPE(info->platform_mask[0]) - 1;
1384         const u32 mask = info->platform_mask[pi];
1385
1386         BUILD_BUG_ON(!__builtin_constant_p(p));
1387         BUILD_BUG_ON(!__builtin_constant_p(s));
1388         BUILD_BUG_ON((s) >= INTEL_SUBPLATFORM_BITS);
1389
1390         /* Shift and test on the MSB position so sign flag can be used. */
1391         return ((mask << (msb - pb)) & (mask << (msb - s))) & BIT(msb);
1392 }
1393
1394 #define IS_MOBILE(dev_priv)     (INTEL_INFO(dev_priv)->is_mobile)
1395 #define IS_DGFX(dev_priv)   (INTEL_INFO(dev_priv)->is_dgfx)
1396
1397 #define IS_I830(dev_priv)       IS_PLATFORM(dev_priv, INTEL_I830)
1398 #define IS_I845G(dev_priv)      IS_PLATFORM(dev_priv, INTEL_I845G)
1399 #define IS_I85X(dev_priv)       IS_PLATFORM(dev_priv, INTEL_I85X)
1400 #define IS_I865G(dev_priv)      IS_PLATFORM(dev_priv, INTEL_I865G)
1401 #define IS_I915G(dev_priv)      IS_PLATFORM(dev_priv, INTEL_I915G)
1402 #define IS_I915GM(dev_priv)     IS_PLATFORM(dev_priv, INTEL_I915GM)
1403 #define IS_I945G(dev_priv)      IS_PLATFORM(dev_priv, INTEL_I945G)
1404 #define IS_I945GM(dev_priv)     IS_PLATFORM(dev_priv, INTEL_I945GM)
1405 #define IS_I965G(dev_priv)      IS_PLATFORM(dev_priv, INTEL_I965G)
1406 #define IS_I965GM(dev_priv)     IS_PLATFORM(dev_priv, INTEL_I965GM)
1407 #define IS_G45(dev_priv)        IS_PLATFORM(dev_priv, INTEL_G45)
1408 #define IS_GM45(dev_priv)       IS_PLATFORM(dev_priv, INTEL_GM45)
1409 #define IS_G4X(dev_priv)        (IS_G45(dev_priv) || IS_GM45(dev_priv))
1410 #define IS_PINEVIEW(dev_priv)   IS_PLATFORM(dev_priv, INTEL_PINEVIEW)
1411 #define IS_G33(dev_priv)        IS_PLATFORM(dev_priv, INTEL_G33)
1412 #define IS_IRONLAKE(dev_priv)   IS_PLATFORM(dev_priv, INTEL_IRONLAKE)
1413 #define IS_IRONLAKE_M(dev_priv) \
1414         (IS_PLATFORM(dev_priv, INTEL_IRONLAKE) && IS_MOBILE(dev_priv))
1415 #define IS_SANDYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SANDYBRIDGE)
1416 #define IS_IVYBRIDGE(dev_priv)  IS_PLATFORM(dev_priv, INTEL_IVYBRIDGE)
1417 #define IS_IVB_GT1(dev_priv)    (IS_IVYBRIDGE(dev_priv) && \
1418                                  INTEL_INFO(dev_priv)->gt == 1)
1419 #define IS_VALLEYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_VALLEYVIEW)
1420 #define IS_CHERRYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_CHERRYVIEW)
1421 #define IS_HASWELL(dev_priv)    IS_PLATFORM(dev_priv, INTEL_HASWELL)
1422 #define IS_BROADWELL(dev_priv)  IS_PLATFORM(dev_priv, INTEL_BROADWELL)
1423 #define IS_SKYLAKE(dev_priv)    IS_PLATFORM(dev_priv, INTEL_SKYLAKE)
1424 #define IS_BROXTON(dev_priv)    IS_PLATFORM(dev_priv, INTEL_BROXTON)
1425 #define IS_KABYLAKE(dev_priv)   IS_PLATFORM(dev_priv, INTEL_KABYLAKE)
1426 #define IS_GEMINILAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_GEMINILAKE)
1427 #define IS_COFFEELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COFFEELAKE)
1428 #define IS_COMETLAKE(dev_priv)  IS_PLATFORM(dev_priv, INTEL_COMETLAKE)
1429 #define IS_CANNONLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_CANNONLAKE)
1430 #define IS_ICELAKE(dev_priv)    IS_PLATFORM(dev_priv, INTEL_ICELAKE)
1431 #define IS_JSL_EHL(dev_priv)    (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE) || \
1432                                 IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
1433 #define IS_TIGERLAKE(dev_priv)  IS_PLATFORM(dev_priv, INTEL_TIGERLAKE)
1434 #define IS_ROCKETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)
1435 #define IS_DG1(dev_priv)        IS_PLATFORM(dev_priv, INTEL_DG1)
1436 #define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S)
1437 #define IS_ALDERLAKE_P(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_P)
1438 #define IS_XEHPSDV(dev_priv) IS_PLATFORM(dev_priv, INTEL_XEHPSDV)
1439 #define IS_DG2(dev_priv)        IS_PLATFORM(dev_priv, INTEL_DG2)
1440 #define IS_DG2_G10(dev_priv) \
1441         IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G10)
1442 #define IS_DG2_G11(dev_priv) \
1443         IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G11)
1444 #define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \
1445                                     (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00)
1446 #define IS_BDW_ULT(dev_priv) \
1447         IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULT)
1448 #define IS_BDW_ULX(dev_priv) \
1449         IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULX)
1450 #define IS_BDW_GT3(dev_priv)    (IS_BROADWELL(dev_priv) && \
1451                                  INTEL_INFO(dev_priv)->gt == 3)
1452 #define IS_HSW_ULT(dev_priv) \
1453         IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULT)
1454 #define IS_HSW_GT3(dev_priv)    (IS_HASWELL(dev_priv) && \
1455                                  INTEL_INFO(dev_priv)->gt == 3)
1456 #define IS_HSW_GT1(dev_priv)    (IS_HASWELL(dev_priv) && \
1457                                  INTEL_INFO(dev_priv)->gt == 1)
1458 /* ULX machines are also considered ULT. */
1459 #define IS_HSW_ULX(dev_priv) \
1460         IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULX)
1461 #define IS_SKL_ULT(dev_priv) \
1462         IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULT)
1463 #define IS_SKL_ULX(dev_priv) \
1464         IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULX)
1465 #define IS_KBL_ULT(dev_priv) \
1466         IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULT)
1467 #define IS_KBL_ULX(dev_priv) \
1468         IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULX)
1469 #define IS_SKL_GT2(dev_priv)    (IS_SKYLAKE(dev_priv) && \
1470                                  INTEL_INFO(dev_priv)->gt == 2)
1471 #define IS_SKL_GT3(dev_priv)    (IS_SKYLAKE(dev_priv) && \
1472                                  INTEL_INFO(dev_priv)->gt == 3)
1473 #define IS_SKL_GT4(dev_priv)    (IS_SKYLAKE(dev_priv) && \
1474                                  INTEL_INFO(dev_priv)->gt == 4)
1475 #define IS_KBL_GT2(dev_priv)    (IS_KABYLAKE(dev_priv) && \
1476                                  INTEL_INFO(dev_priv)->gt == 2)
1477 #define IS_KBL_GT3(dev_priv)    (IS_KABYLAKE(dev_priv) && \
1478                                  INTEL_INFO(dev_priv)->gt == 3)
1479 #define IS_CFL_ULT(dev_priv) \
1480         IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULT)
1481 #define IS_CFL_ULX(dev_priv) \
1482         IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULX)
1483 #define IS_CFL_GT2(dev_priv)    (IS_COFFEELAKE(dev_priv) && \
1484                                  INTEL_INFO(dev_priv)->gt == 2)
1485 #define IS_CFL_GT3(dev_priv)    (IS_COFFEELAKE(dev_priv) && \
1486                                  INTEL_INFO(dev_priv)->gt == 3)
1487
1488 #define IS_CML_ULT(dev_priv) \
1489         IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULT)
1490 #define IS_CML_ULX(dev_priv) \
1491         IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULX)
1492 #define IS_CML_GT2(dev_priv)    (IS_COMETLAKE(dev_priv) && \
1493                                  INTEL_INFO(dev_priv)->gt == 2)
1494
1495 #define IS_CNL_WITH_PORT_F(dev_priv) \
1496         IS_SUBPLATFORM(dev_priv, INTEL_CANNONLAKE, INTEL_SUBPLATFORM_PORTF)
1497 #define IS_ICL_WITH_PORT_F(dev_priv) \
1498         IS_SUBPLATFORM(dev_priv, INTEL_ICELAKE, INTEL_SUBPLATFORM_PORTF)
1499
1500 #define IS_TGL_U(dev_priv) \
1501         IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULT)
1502
1503 #define IS_TGL_Y(dev_priv) \
1504         IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULX)
1505
1506 #define IS_SKL_GT_STEP(p, since, until) (IS_SKYLAKE(p) && IS_GT_STEP(p, since, until))
1507
1508 #define IS_KBL_GT_STEP(dev_priv, since, until) \
1509         (IS_KABYLAKE(dev_priv) && IS_GT_STEP(dev_priv, since, until))
1510 #define IS_KBL_DISPLAY_STEP(dev_priv, since, until) \
1511         (IS_KABYLAKE(dev_priv) && IS_DISPLAY_STEP(dev_priv, since, until))
1512
1513 #define IS_JSL_EHL_GT_STEP(p, since, until) \
1514         (IS_JSL_EHL(p) && IS_GT_STEP(p, since, until))
1515 #define IS_JSL_EHL_DISPLAY_STEP(p, since, until) \
1516         (IS_JSL_EHL(p) && IS_DISPLAY_STEP(p, since, until))
1517
1518 #define IS_TGL_DISPLAY_STEP(__i915, since, until) \
1519         (IS_TIGERLAKE(__i915) && \
1520          IS_DISPLAY_STEP(__i915, since, until))
1521
1522 #define IS_TGL_UY_GT_STEP(__i915, since, until) \
1523         ((IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1524          IS_GT_STEP(__i915, since, until))
1525
1526 #define IS_TGL_GT_STEP(__i915, since, until) \
1527         (IS_TIGERLAKE(__i915) && !(IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1528          IS_GT_STEP(__i915, since, until))
1529
1530 #define IS_RKL_DISPLAY_STEP(p, since, until) \
1531         (IS_ROCKETLAKE(p) && IS_DISPLAY_STEP(p, since, until))
1532
1533 #define IS_DG1_GT_STEP(p, since, until) \
1534         (IS_DG1(p) && IS_GT_STEP(p, since, until))
1535 #define IS_DG1_DISPLAY_STEP(p, since, until) \
1536         (IS_DG1(p) && IS_DISPLAY_STEP(p, since, until))
1537
1538 #define IS_ADLS_DISPLAY_STEP(__i915, since, until) \
1539         (IS_ALDERLAKE_S(__i915) && \
1540          IS_DISPLAY_STEP(__i915, since, until))
1541
1542 #define IS_ADLS_GT_STEP(__i915, since, until) \
1543         (IS_ALDERLAKE_S(__i915) && \
1544          IS_GT_STEP(__i915, since, until))
1545
1546 #define IS_ADLP_DISPLAY_STEP(__i915, since, until) \
1547         (IS_ALDERLAKE_P(__i915) && \
1548          IS_DISPLAY_STEP(__i915, since, until))
1549
1550 #define IS_ADLP_GT_STEP(__i915, since, until) \
1551         (IS_ALDERLAKE_P(__i915) && \
1552          IS_GT_STEP(__i915, since, until))
1553
1554 #define IS_XEHPSDV_GT_STEP(__i915, since, until) \
1555         (IS_XEHPSDV(__i915) && IS_GT_STEP(__i915, since, until))
1556
1557 /*
1558  * DG2 hardware steppings are a bit unusual.  The hardware design was forked
1559  * to create two variants (G10 and G11) which have distinct workaround sets.
1560  * The G11 fork of the DG2 design resets the GT stepping back to "A0" for its
1561  * first iteration, even though it's more similar to a G10 B0 stepping in terms
1562  * of functionality and workarounds.  However the display stepping does not
1563  * reset in the same manner --- a specific stepping like "B0" has a consistent
1564  * meaning regardless of whether it belongs to a G10 or G11 DG2.
1565  *
1566  * TLDR:  All GT workarounds and stepping-specific logic must be applied in
1567  * relation to a specific subplatform (G10 or G11), whereas display workarounds
1568  * and stepping-specific logic will be applied with a general DG2-wide stepping
1569  * number.
1570  */
1571 #define IS_DG2_GT_STEP(__i915, variant, since, until) \
1572         (IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
1573          IS_GT_STEP(__i915, since, until))
1574
1575 #define IS_DG2_DISP_STEP(__i915, since, until) \
1576         (IS_DG2(__i915) && \
1577          IS_DISPLAY_STEP(__i915, since, until))
1578
1579 #define IS_LP(dev_priv)         (INTEL_INFO(dev_priv)->is_lp)
1580 #define IS_GEN9_LP(dev_priv)    (GRAPHICS_VER(dev_priv) == 9 && IS_LP(dev_priv))
1581 #define IS_GEN9_BC(dev_priv)    (GRAPHICS_VER(dev_priv) == 9 && !IS_LP(dev_priv))
1582
1583 #define __HAS_ENGINE(engine_mask, id) ((engine_mask) & BIT(id))
1584 #define HAS_ENGINE(gt, id) __HAS_ENGINE((gt)->info.engine_mask, id)
1585
1586 #define ENGINE_INSTANCES_MASK(gt, first, count) ({              \
1587         unsigned int first__ = (first);                                 \
1588         unsigned int count__ = (count);                                 \
1589         ((gt)->info.engine_mask &                                               \
1590          GENMASK(first__ + count__ - 1, first__)) >> first__;           \
1591 })
1592 #define VDBOX_MASK(gt) \
1593         ENGINE_INSTANCES_MASK(gt, VCS0, I915_MAX_VCS)
1594 #define VEBOX_MASK(gt) \
1595         ENGINE_INSTANCES_MASK(gt, VECS0, I915_MAX_VECS)
1596
1597 /*
1598  * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
1599  * All later gens can run the final buffer from the ppgtt
1600  */
1601 #define CMDPARSER_USES_GGTT(dev_priv) (GRAPHICS_VER(dev_priv) == 7)
1602
1603 #define HAS_LLC(dev_priv)       (INTEL_INFO(dev_priv)->has_llc)
1604 #define HAS_SNOOP(dev_priv)     (INTEL_INFO(dev_priv)->has_snoop)
1605 #define HAS_EDRAM(dev_priv)     ((dev_priv)->edram_size_mb)
1606 #define HAS_SECURE_BATCHES(dev_priv) (GRAPHICS_VER(dev_priv) < 6)
1607 #define HAS_WT(dev_priv)        HAS_EDRAM(dev_priv)
1608
1609 #define HWS_NEEDS_PHYSICAL(dev_priv)    (INTEL_INFO(dev_priv)->hws_needs_physical)
1610
1611 #define HAS_LOGICAL_RING_CONTEXTS(dev_priv) \
1612                 (INTEL_INFO(dev_priv)->has_logical_ring_contexts)
1613 #define HAS_LOGICAL_RING_ELSQ(dev_priv) \
1614                 (INTEL_INFO(dev_priv)->has_logical_ring_elsq)
1615
1616 #define HAS_MASTER_UNIT_IRQ(dev_priv) (INTEL_INFO(dev_priv)->has_master_unit_irq)
1617
1618 #define HAS_EXECLISTS(dev_priv) HAS_LOGICAL_RING_CONTEXTS(dev_priv)
1619
1620 #define INTEL_PPGTT(dev_priv) (INTEL_INFO(dev_priv)->ppgtt_type)
1621 #define HAS_PPGTT(dev_priv) \
1622         (INTEL_PPGTT(dev_priv) != INTEL_PPGTT_NONE)
1623 #define HAS_FULL_PPGTT(dev_priv) \
1624         (INTEL_PPGTT(dev_priv) >= INTEL_PPGTT_FULL)
1625
1626 #define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
1627         GEM_BUG_ON((sizes) == 0); \
1628         ((sizes) & ~INTEL_INFO(dev_priv)->page_sizes) == 0; \
1629 })
1630
1631 #define HAS_OVERLAY(dev_priv)            (INTEL_INFO(dev_priv)->display.has_overlay)
1632 #define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
1633                 (INTEL_INFO(dev_priv)->display.overlay_needs_physical)
1634
1635 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1636 #define HAS_BROKEN_CS_TLB(dev_priv)     (IS_I830(dev_priv) || IS_I845G(dev_priv))
1637
1638 #define NEEDS_RC6_CTX_CORRUPTION_WA(dev_priv)   \
1639         (IS_BROADWELL(dev_priv) || GRAPHICS_VER(dev_priv) == 9)
1640
1641 /* WaRsDisableCoarsePowerGating:skl,cnl */
1642 #define NEEDS_WaRsDisableCoarsePowerGating(dev_priv)                    \
1643         (IS_CANNONLAKE(dev_priv) ||                                     \
1644          IS_SKL_GT3(dev_priv) ||                                        \
1645          IS_SKL_GT4(dev_priv))
1646
1647 #define HAS_GMBUS_IRQ(dev_priv) (GRAPHICS_VER(dev_priv) >= 4)
1648 #define HAS_GMBUS_BURST_READ(dev_priv) (GRAPHICS_VER(dev_priv) >= 10 || \
1649                                         IS_GEMINILAKE(dev_priv) || \
1650                                         IS_KABYLAKE(dev_priv))
1651
1652 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1653  * rows, which changed the alignment requirements and fence programming.
1654  */
1655 #define HAS_128_BYTE_Y_TILING(dev_priv) (GRAPHICS_VER(dev_priv) != 2 && \
1656                                          !(IS_I915G(dev_priv) || IS_I915GM(dev_priv)))
1657 #define SUPPORTS_TV(dev_priv)           (INTEL_INFO(dev_priv)->display.supports_tv)
1658 #define I915_HAS_HOTPLUG(dev_priv)      (INTEL_INFO(dev_priv)->display.has_hotplug)
1659
1660 #define HAS_FW_BLC(dev_priv)    (GRAPHICS_VER(dev_priv) > 2)
1661 #define HAS_FBC(dev_priv)       (INTEL_INFO(dev_priv)->display.has_fbc)
1662 #define HAS_CUR_FBC(dev_priv)   (!HAS_GMCH(dev_priv) && GRAPHICS_VER(dev_priv) >= 7)
1663
1664 #define HAS_IPS(dev_priv)       (IS_HSW_ULT(dev_priv) || IS_BROADWELL(dev_priv))
1665
1666 #define HAS_DP_MST(dev_priv)    (INTEL_INFO(dev_priv)->display.has_dp_mst)
1667
1668 #define HAS_DDI(dev_priv)                (INTEL_INFO(dev_priv)->display.has_ddi)
1669 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
1670 #define HAS_PSR(dev_priv)                (INTEL_INFO(dev_priv)->display.has_psr)
1671 #define HAS_PSR_HW_TRACKING(dev_priv) \
1672         (INTEL_INFO(dev_priv)->display.has_psr_hw_tracking)
1673 #define HAS_PSR2_SEL_FETCH(dev_priv)     (GRAPHICS_VER(dev_priv) >= 12)
1674 #define HAS_TRANSCODER(dev_priv, trans)  ((INTEL_INFO(dev_priv)->cpu_transcoder_mask & BIT(trans)) != 0)
1675
1676 #define HAS_RC6(dev_priv)                (INTEL_INFO(dev_priv)->has_rc6)
1677 #define HAS_RC6p(dev_priv)               (INTEL_INFO(dev_priv)->has_rc6p)
1678 #define HAS_RC6pp(dev_priv)              (false) /* HW was never validated */
1679
1680 #define HAS_RPS(dev_priv)       (INTEL_INFO(dev_priv)->has_rps)
1681
1682 #define HAS_DMC(dev_priv)       (INTEL_INFO(dev_priv)->display.has_dmc)
1683
1684 #define HAS_MSO(i915)           (GRAPHICS_VER(i915) >= 12)
1685
1686 #define HAS_RUNTIME_PM(dev_priv) (INTEL_INFO(dev_priv)->has_runtime_pm)
1687 #define HAS_64BIT_RELOC(dev_priv) (INTEL_INFO(dev_priv)->has_64bit_reloc)
1688
1689 #define HAS_MSLICES(dev_priv) \
1690         (INTEL_INFO(dev_priv)->has_mslices)
1691
1692 #define HAS_IPC(dev_priv)                (INTEL_INFO(dev_priv)->display.has_ipc)
1693
1694 #define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i))
1695 #define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM)
1696
1697 #define HAS_GT_UC(dev_priv)     (INTEL_INFO(dev_priv)->has_gt_uc)
1698
1699 #define HAS_POOLED_EU(dev_priv) (INTEL_INFO(dev_priv)->has_pooled_eu)
1700
1701 #define HAS_GLOBAL_MOCS_REGISTERS(dev_priv)     (INTEL_INFO(dev_priv)->has_global_mocs)
1702
1703
1704 #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)
1705
1706 #define HAS_LSPCON(dev_priv) (IS_GRAPHICS_VER(dev_priv, 9, 10))
1707
1708 /* DPF == dynamic parity feature */
1709 #define HAS_L3_DPF(dev_priv) (INTEL_INFO(dev_priv)->has_l3_dpf)
1710 #define NUM_L3_SLICES(dev_priv) (IS_HSW_GT3(dev_priv) ? \
1711                                  2 : HAS_L3_DPF(dev_priv))
1712
1713 #define GT_FREQUENCY_MULTIPLIER 50
1714 #define GEN9_FREQ_SCALER 3
1715
1716 #define INTEL_NUM_PIPES(dev_priv) (hweight8(INTEL_INFO(dev_priv)->pipe_mask))
1717
1718 #define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->pipe_mask != 0)
1719
1720 #define HAS_VRR(i915)   (GRAPHICS_VER(i915) >= 12)
1721
1722 /* Only valid when HAS_DISPLAY() is true */
1723 #define INTEL_DISPLAY_ENABLED(dev_priv) \
1724         (drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
1725
1726 static inline bool run_as_guest(void)
1727 {
1728         return !hypervisor_is_type(X86_HYPER_NATIVE);
1729 }
1730
1731 #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \
1732                                               IS_ALDERLAKE_S(dev_priv))
1733
1734 static inline bool intel_vtd_active(void)
1735 {
1736 #ifdef CONFIG_INTEL_IOMMU
1737         if (intel_iommu_gfx_mapped)
1738                 return true;
1739 #endif
1740
1741         /* Running as a guest, we assume the host is enforcing VT'd */
1742         return run_as_guest();
1743 }
1744
1745 static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
1746 {
1747         return GRAPHICS_VER(dev_priv) >= 6 && intel_vtd_active();
1748 }
1749
1750 static inline bool
1751 intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915)
1752 {
1753         return IS_BROXTON(i915) && intel_vtd_active();
1754 }
1755
1756 static inline bool
1757 intel_vm_no_concurrent_access_wa(struct drm_i915_private *i915)
1758 {
1759         return IS_CHERRYVIEW(i915) || intel_ggtt_update_needs_vtd_wa(i915);
1760 }
1761
1762 /* i915_drv.c */
1763 extern const struct dev_pm_ops i915_pm_ops;
1764
1765 int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
1766 void i915_driver_remove(struct drm_i915_private *i915);
1767 void i915_driver_shutdown(struct drm_i915_private *i915);
1768
1769 int i915_resume_switcheroo(struct drm_i915_private *i915);
1770 int i915_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state);
1771
1772 int i915_getparam_ioctl(struct drm_device *dev, void *data,
1773                         struct drm_file *file_priv);
1774
1775 /* i915_gem.c */
1776 int i915_gem_init_userptr(struct drm_i915_private *dev_priv);
1777 void i915_gem_cleanup_userptr(struct drm_i915_private *dev_priv);
1778 void i915_gem_init_early(struct drm_i915_private *dev_priv);
1779 void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);
1780
1781 static inline void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
1782 {
1783         /*
1784          * A single pass should suffice to release all the freed objects (along
1785          * most call paths) , but be a little more paranoid in that freeing
1786          * the objects does take a little amount of time, during which the rcu
1787          * callbacks could have added new objects into the freed list, and
1788          * armed the work again.
1789          */
1790         while (atomic_read(&i915->mm.free_count)) {
1791                 flush_work(&i915->mm.free_work);
1792                 rcu_barrier();
1793         }
1794 }
1795
1796 static inline void i915_gem_drain_workqueue(struct drm_i915_private *i915)
1797 {
1798         /*
1799          * Similar to objects above (see i915_gem_drain_freed-objects), in
1800          * general we have workers that are armed by RCU and then rearm
1801          * themselves in their callbacks. To be paranoid, we need to
1802          * drain the workqueue a second time after waiting for the RCU
1803          * grace period so that we catch work queued via RCU from the first
1804          * pass. As neither drain_workqueue() nor flush_workqueue() report
1805          * a result, we make an assumption that we only don't require more
1806          * than 3 passes to catch all _recursive_ RCU delayed work.
1807          *
1808          */
1809         int pass = 3;
1810         do {
1811                 flush_workqueue(i915->wq);
1812                 rcu_barrier();
1813                 i915_gem_drain_freed_objects(i915);
1814         } while (--pass);
1815         drain_workqueue(i915->wq);
1816 }
1817
1818 struct i915_vma * __must_check
1819 i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
1820                             struct i915_gem_ww_ctx *ww,
1821                             const struct i915_ggtt_view *view,
1822                             u64 size, u64 alignment, u64 flags);
1823
1824 static inline struct i915_vma * __must_check
1825 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
1826                          const struct i915_ggtt_view *view,
1827                          u64 size, u64 alignment, u64 flags)
1828 {
1829         return i915_gem_object_ggtt_pin_ww(obj, NULL, view, size, alignment, flags);
1830 }
1831
1832 int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
1833                            unsigned long flags);
1834 #define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
1835 #define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
1836 #define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
1837 #define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)
1838
1839 void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);
1840
1841 int i915_gem_dumb_create(struct drm_file *file_priv,
1842                          struct drm_device *dev,
1843                          struct drm_mode_create_dumb *args);
1844
1845 int __must_check i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno);
1846
1847 static inline u32 i915_reset_count(struct i915_gpu_error *error)
1848 {
1849         return atomic_read(&error->reset_count);
1850 }
1851
1852 static inline u32 i915_reset_engine_count(struct i915_gpu_error *error,
1853                                           const struct intel_engine_cs *engine)
1854 {
1855         return atomic_read(&error->reset_engine_count[engine->uabi_class]);
1856 }
1857
1858 int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
1859 void i915_gem_driver_register(struct drm_i915_private *i915);
1860 void i915_gem_driver_unregister(struct drm_i915_private *i915);
1861 void i915_gem_driver_remove(struct drm_i915_private *dev_priv);
1862 void i915_gem_driver_release(struct drm_i915_private *dev_priv);
1863 void i915_gem_suspend(struct drm_i915_private *dev_priv);
1864 void i915_gem_suspend_late(struct drm_i915_private *dev_priv);
1865 void i915_gem_resume(struct drm_i915_private *dev_priv);
1866
1867 int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
1868
1869 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1870                                     enum i915_cache_level cache_level);
1871
1872 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1873                                 struct dma_buf *dma_buf);
1874
1875 struct dma_buf *i915_gem_prime_export(struct drm_gem_object *gem_obj, int flags);
1876
1877 static inline struct i915_address_space *
1878 i915_gem_vm_lookup(struct drm_i915_file_private *file_priv, u32 id)
1879 {
1880         struct i915_address_space *vm;
1881
1882         rcu_read_lock();
1883         vm = xa_load(&file_priv->vm_xa, id);
1884         if (vm && !kref_get_unless_zero(&vm->ref))
1885                 vm = NULL;
1886         rcu_read_unlock();
1887
1888         return vm;
1889 }
1890
1891 /* i915_gem_evict.c */
1892 int __must_check i915_gem_evict_something(struct i915_address_space *vm,
1893                                           u64 min_size, u64 alignment,
1894                                           unsigned long color,
1895                                           u64 start, u64 end,
1896                                           unsigned flags);
1897 int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
1898                                          struct drm_mm_node *node,
1899                                          unsigned int flags);
1900 int i915_gem_evict_vm(struct i915_address_space *vm);
1901
1902 /* i915_gem_internal.c */
1903 struct drm_i915_gem_object *
1904 i915_gem_object_create_internal(struct drm_i915_private *dev_priv,
1905                                 phys_addr_t size);
1906
1907 /* i915_gem_tiling.c */
1908 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1909 {
1910         struct drm_i915_private *i915 = to_i915(obj->base.dev);
1911
1912         return i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1913                 i915_gem_object_is_tiled(obj);
1914 }
1915
1916 u32 i915_gem_fence_size(struct drm_i915_private *dev_priv, u32 size,
1917                         unsigned int tiling, unsigned int stride);
1918 u32 i915_gem_fence_alignment(struct drm_i915_private *dev_priv, u32 size,
1919                              unsigned int tiling, unsigned int stride);
1920
1921 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
1922
1923 /* i915_cmd_parser.c */
1924 int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv);
1925 int intel_engine_init_cmd_parser(struct intel_engine_cs *engine);
1926 void intel_engine_cleanup_cmd_parser(struct intel_engine_cs *engine);
1927 int intel_engine_cmd_parser(struct intel_engine_cs *engine,
1928                             struct i915_vma *batch,
1929                             unsigned long batch_offset,
1930                             unsigned long batch_length,
1931                             struct i915_vma *shadow,
1932                             bool trampoline);
1933 #define I915_CMD_PARSER_TRAMPOLINE_SIZE 8
1934
1935 /* intel_device_info.c */
1936 static inline struct intel_device_info *
1937 mkwrite_device_info(struct drm_i915_private *dev_priv)
1938 {
1939         return (struct intel_device_info *)INTEL_INFO(dev_priv);
1940 }
1941
1942 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
1943                         struct drm_file *file);
1944
1945 /* i915_mm.c */
1946 int remap_io_mapping(struct vm_area_struct *vma,
1947                      unsigned long addr, unsigned long pfn, unsigned long size,
1948                      struct io_mapping *iomap);
1949 int remap_io_sg(struct vm_area_struct *vma,
1950                 unsigned long addr, unsigned long size,
1951                 struct scatterlist *sgl, resource_size_t iobase);
1952
1953 static inline int intel_hws_csb_write_index(struct drm_i915_private *i915)
1954 {
1955         if (GRAPHICS_VER(i915) >= 11)
1956                 return ICL_HWS_CSB_WRITE_INDEX;
1957         else
1958                 return I915_HWS_CSB_WRITE_INDEX;
1959 }
1960
1961 static inline enum i915_map_type
1962 i915_coherent_map_type(struct drm_i915_private *i915,
1963                        struct drm_i915_gem_object *obj, bool always_coherent)
1964 {
1965         if (i915_gem_object_is_lmem(obj))
1966                 return I915_MAP_WC;
1967         if (HAS_LLC(i915) || always_coherent)
1968                 return I915_MAP_WB;
1969         else
1970                 return I915_MAP_WC;
1971 }
1972
1973 #endif