1 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
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.
33 #include <uapi/drm/i915_drm.h>
34 #include <uapi/drm/drm_fourcc.h>
36 #include <asm/hypervisor.h>
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>
53 #include <drm/drm_gem.h>
54 #include <drm/drm_auth.h>
55 #include <drm/drm_cache.h>
56 #include <drm/drm_util.h>
57 #include <drm/drm_dsc.h>
58 #include <drm/drm_atomic.h>
59 #include <drm/drm_connector.h>
60 #include <drm/i915_mei_hdcp_interface.h>
61 #include <drm/ttm/ttm_device.h>
63 #include "i915_params.h"
65 #include "i915_utils.h"
67 #include "display/intel_bios.h"
68 #include "display/intel_display.h"
69 #include "display/intel_display_power.h"
70 #include "display/intel_dmc.h"
71 #include "display/intel_dpll_mgr.h"
72 #include "display/intel_dsb.h"
73 #include "display/intel_frontbuffer.h"
74 #include "display/intel_global_state.h"
75 #include "display/intel_gmbus.h"
76 #include "display/intel_opregion.h"
78 #include "gem/i915_gem_context_types.h"
79 #include "gem/i915_gem_shrinker.h"
80 #include "gem/i915_gem_stolen.h"
81 #include "gem/i915_gem_lmem.h"
83 #include "gt/intel_engine.h"
84 #include "gt/intel_gt_types.h"
85 #include "gt/intel_region_lmem.h"
86 #include "gt/intel_workarounds.h"
87 #include "gt/uc/intel_uc.h"
89 #include "intel_device_info.h"
90 #include "intel_memory_region.h"
91 #include "intel_pch.h"
92 #include "intel_pm_types.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"
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"
110 /* General customization:
113 #define DRIVER_NAME "i915"
114 #define DRIVER_DESC "Intel Graphics"
115 #define DRIVER_DATE "20201103"
116 #define DRIVER_TIMESTAMP 1604406085
118 struct drm_i915_gem_object;
120 /* Threshold == 5 for long IRQs, 50 for short */
121 #define HPD_STORM_DEFAULT_THRESHOLD 50
123 struct i915_hotplug {
124 struct delayed_work hotplug_work;
126 const u32 *hpd, *pch_hpd;
129 unsigned long last_jiffies;
134 HPD_MARK_DISABLED = 2
136 } stats[HPD_NUM_PINS];
139 struct delayed_work reenable_work;
143 struct work_struct dig_port_work;
145 struct work_struct poll_init_work;
148 unsigned int hpd_storm_threshold;
149 /* Whether or not to count short HPD IRQs in HPD storms */
150 u8 hpd_short_storm_enabled;
153 * if we get a HPD irq from DP and a HPD irq from non-DP
154 * the non-DP HPD could block the workqueue on a mode config
155 * mutex getting, that userspace may have taken. However
156 * userspace is waiting on the DP workqueue to run which is
157 * blocked behind the non-DP one.
159 struct workqueue_struct *dp_wq;
162 #define I915_GEM_GPU_DOMAINS \
163 (I915_GEM_DOMAIN_RENDER | \
164 I915_GEM_DOMAIN_SAMPLER | \
165 I915_GEM_DOMAIN_COMMAND | \
166 I915_GEM_DOMAIN_INSTRUCTION | \
167 I915_GEM_DOMAIN_VERTEX)
169 struct drm_i915_private;
171 struct drm_i915_file_private {
172 struct drm_i915_private *dev_priv;
175 struct drm_file *file;
179 /** @proto_context_lock: Guards all struct i915_gem_proto_context
182 * This not only guards @proto_context_xa, but is always held
183 * whenever we manipulate any struct i915_gem_proto_context,
184 * including finalizing it on first actual use of the GEM context.
186 * See i915_gem_proto_context.
188 struct mutex proto_context_lock;
190 /** @proto_context_xa: xarray of struct i915_gem_proto_context
192 * Historically, the context uAPI allowed for two methods of
193 * setting context parameters: SET_CONTEXT_PARAM and
194 * CONTEXT_CREATE_EXT_SETPARAM. The former is allowed to be called
195 * at any time while the later happens as part of
196 * GEM_CONTEXT_CREATE. Everything settable via one was settable
197 * via the other. While some params are fairly simple and setting
198 * them on a live context is harmless such as the context priority,
199 * others are far trickier such as the VM or the set of engines.
200 * In order to swap out the VM, for instance, we have to delay
201 * until all current in-flight work is complete, swap in the new
202 * VM, and then continue. This leads to a plethora of potential
203 * race conditions we'd really rather avoid.
205 * We have since disallowed setting these more complex parameters
206 * on active contexts. This works by delaying the creation of the
207 * actual context until after the client is done configuring it
208 * with SET_CONTEXT_PARAM. From the perspective of the client, it
209 * has the same u32 context ID the whole time. From the
210 * perspective of i915, however, it's a struct i915_gem_proto_context
211 * right up until the point where we attempt to do something which
212 * the proto-context can't handle. Then the struct i915_gem_context
215 * This is accomplished via a little xarray dance. When
216 * GEM_CONTEXT_CREATE is called, we create a struct
217 * i915_gem_proto_context, reserve a slot in @context_xa but leave
218 * it NULL, and place the proto-context in the corresponding slot
219 * in @proto_context_xa. Then, in i915_gem_context_lookup(), we
220 * first check @context_xa. If it's there, we return the struct
221 * i915_gem_context and we're done. If it's not, we look in
222 * @proto_context_xa and, if we find it there, we create the actual
223 * context and kill the proto-context.
225 * In order for this dance to work properly, everything which ever
226 * touches a struct i915_gem_proto_context is guarded by
227 * @proto_context_lock, including context creation. Yes, this
228 * means context creation now takes a giant global lock but it
229 * can't really be helped and that should never be on any driver's
232 struct xarray proto_context_xa;
234 /** @context_xa: xarray of fully created i915_gem_context
236 * Write access to this xarray is guarded by @proto_context_lock.
237 * Otherwise, writers may race with finalize_create_context_locked().
239 * See @proto_context_xa.
241 struct xarray context_xa;
244 unsigned int bsd_engine;
247 * Every context ban increments per client ban score. Also
248 * hangs in short succession increments ban score. If ban threshold
249 * is reached, client is considered banned and submitting more work
250 * will fail. This is a stop gap measure to limit the badly behaving
251 * clients access to gpu. Note that unbannable contexts never increment
252 * the client ban score.
254 #define I915_CLIENT_SCORE_HANG_FAST 1
255 #define I915_CLIENT_FAST_HANG_JIFFIES (60 * HZ)
256 #define I915_CLIENT_SCORE_CONTEXT_BAN 3
257 #define I915_CLIENT_SCORE_BANNED 9
258 /** ban_score: Accumulated score of all ctx bans and fast hangs. */
260 unsigned long hang_timestamp;
263 /* Interface history:
266 * 1.2: Add Power Management
267 * 1.3: Add vblank support
268 * 1.4: Fix cmdbuffer path, add heap destroy
269 * 1.5: Add vblank pipe configuration
270 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
271 * - Support vertical blank on secondary display pipe
273 #define DRIVER_MAJOR 1
274 #define DRIVER_MINOR 6
275 #define DRIVER_PATCHLEVEL 0
277 struct intel_overlay;
278 struct intel_overlay_error_state;
280 struct sdvo_device_mapping {
289 struct intel_connector;
290 struct intel_encoder;
291 struct intel_atomic_state;
292 struct intel_cdclk_config;
293 struct intel_cdclk_state;
294 struct intel_cdclk_vals;
295 struct intel_initial_plane_config;
300 /* functions used internal in intel_pm.c */
301 struct drm_i915_clock_gating_funcs {
302 void (*init_clock_gating)(struct drm_i915_private *dev_priv);
305 /* functions used for watermark calcs for display. */
306 struct drm_i915_wm_disp_funcs {
307 /* update_wm is for legacy wm management */
308 void (*update_wm)(struct drm_i915_private *dev_priv);
309 int (*compute_pipe_wm)(struct intel_atomic_state *state,
310 struct intel_crtc *crtc);
311 int (*compute_intermediate_wm)(struct intel_atomic_state *state,
312 struct intel_crtc *crtc);
313 void (*initial_watermarks)(struct intel_atomic_state *state,
314 struct intel_crtc *crtc);
315 void (*atomic_update_watermarks)(struct intel_atomic_state *state,
316 struct intel_crtc *crtc);
317 void (*optimize_watermarks)(struct intel_atomic_state *state,
318 struct intel_crtc *crtc);
319 int (*compute_global_watermarks)(struct intel_atomic_state *state);
322 struct intel_color_funcs {
323 int (*color_check)(struct intel_crtc_state *crtc_state);
325 * Program double buffered color management registers during
326 * vblank evasion. The registers should then latch during the
327 * next vblank start, alongside any other double buffered registers
328 * involved with the same commit.
330 void (*color_commit)(const struct intel_crtc_state *crtc_state);
332 * Load LUTs (and other single buffered color management
333 * registers). Will (hopefully) be called during the vblank
334 * following the latching of any double buffered registers
335 * involved with the same commit.
337 void (*load_luts)(const struct intel_crtc_state *crtc_state);
338 void (*read_luts)(struct intel_crtc_state *crtc_state);
341 struct intel_cdclk_funcs {
342 void (*get_cdclk)(struct drm_i915_private *dev_priv,
343 struct intel_cdclk_config *cdclk_config);
344 void (*set_cdclk)(struct drm_i915_private *dev_priv,
345 const struct intel_cdclk_config *cdclk_config,
347 int (*bw_calc_min_cdclk)(struct intel_atomic_state *state);
348 int (*modeset_calc_cdclk)(struct intel_cdclk_state *state);
349 u8 (*calc_voltage_level)(int cdclk);
352 struct intel_hotplug_funcs {
353 void (*hpd_irq_setup)(struct drm_i915_private *dev_priv);
356 struct intel_fdi_funcs {
357 void (*fdi_link_train)(struct intel_crtc *crtc,
358 const struct intel_crtc_state *crtc_state);
361 struct intel_dpll_funcs {
362 int (*crtc_compute_clock)(struct intel_crtc_state *crtc_state);
365 struct drm_i915_display_funcs {
366 /* Returns the active state of the crtc, and if the crtc is active,
367 * fills out the pipe-config with the hw state. */
368 bool (*get_pipe_config)(struct intel_crtc *,
369 struct intel_crtc_state *);
370 void (*get_initial_plane_config)(struct intel_crtc *,
371 struct intel_initial_plane_config *);
372 void (*crtc_enable)(struct intel_atomic_state *state,
373 struct intel_crtc *crtc);
374 void (*crtc_disable)(struct intel_atomic_state *state,
375 struct intel_crtc *crtc);
376 void (*commit_modeset_enables)(struct intel_atomic_state *state);
379 #define I915_COLOR_UNEVICTABLE (-1) /* a non-vma sharing the address space */
382 * HIGH_RR is the highest eDP panel refresh rate read from EDID
383 * LOW_RR is the lowest eDP panel refresh rate found from EDID
384 * parsing for same resolution.
386 enum drrs_refresh_rate_type {
389 DRRS_MAX_RR, /* RR count */
392 enum drrs_support_type {
393 DRRS_NOT_SUPPORTED = 0,
394 STATIC_DRRS_SUPPORT = 1,
395 SEAMLESS_DRRS_SUPPORT = 2
401 struct delayed_work work;
403 unsigned busy_frontbuffer_bits;
404 enum drrs_refresh_rate_type refresh_rate_type;
405 enum drrs_support_type type;
408 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
409 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
410 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
411 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
412 #define QUIRK_INCREASE_T12_DELAY (1<<6)
413 #define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
414 #define QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK (1<<8)
419 struct i2c_adapter adapter;
420 #define GMBUS_FORCE_BIT_RETRY (1U << 31)
424 struct i2c_algo_bit_data bit_algo;
425 struct drm_i915_private *dev_priv;
428 struct i915_suspend_saved_registers {
436 struct vlv_s0ix_state;
438 #define MAX_L3_SLICES 2
439 struct intel_l3_parity {
440 u32 *remap_info[MAX_L3_SLICES];
441 struct work_struct error_work;
447 * Shortcut for the stolen region. This points to either
448 * INTEL_REGION_STOLEN_SMEM for integrated platforms, or
449 * INTEL_REGION_STOLEN_LMEM for discrete, or NULL if the device doesn't
452 struct intel_memory_region *stolen_region;
453 /** Memory allocator for GTT stolen memory */
454 struct drm_mm stolen;
455 /** Protects the usage of the GTT stolen memory allocator. This is
456 * always the inner lock when overlapping with struct_mutex. */
457 struct mutex stolen_lock;
459 /* Protects bound_list/unbound_list and #drm_i915_gem_object.mm.link */
463 * List of objects which are purgeable.
465 struct list_head purge_list;
468 * List of objects which have allocated pages and are shrinkable.
470 struct list_head shrink_list;
473 * List of objects which are pending destruction.
475 struct llist_head free_list;
476 struct delayed_work free_work;
478 * Count of objects pending destructions. Used to skip needlessly
479 * waiting on an RCU barrier if no objects are waiting to be freed.
484 * tmpfs instance used for shmem backed objects
486 struct vfsmount *gemfs;
488 struct intel_memory_region *regions[INTEL_REGION_UNKNOWN];
490 struct notifier_block oom_notifier;
491 struct notifier_block vmap_notifier;
492 struct shrinker shrinker;
494 #ifdef CONFIG_MMU_NOTIFIER
496 * notifier_lock for mmu notifiers, memory may not be allocated
497 * while holding this lock.
499 rwlock_t notifier_lock;
502 /* shrinker accounting, also useful for userland debugging */
507 #define I915_IDLE_ENGINES_TIMEOUT (200) /* in ms */
509 unsigned long i915_fence_context_timeout(const struct drm_i915_private *i915,
512 static inline unsigned long
513 i915_fence_timeout(const struct drm_i915_private *i915)
515 return i915_fence_context_timeout(i915, U64_MAX);
518 /* Amount of SAGV/QGV points, BSpec precisely defines this */
519 #define I915_NUM_QGV_POINTS 8
521 #define HAS_HW_SAGV_WM(i915) (DISPLAY_VER(i915) >= 13 && !IS_DGFX(i915))
523 /* Amount of PSF GV points, BSpec precisely defines this */
524 #define I915_NUM_PSF_GV_POINTS 3
526 enum psr_lines_to_wait {
527 PSR_0_LINES_TO_WAIT = 0,
533 struct intel_vbt_data {
537 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
538 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
541 unsigned int int_tv_support:1;
542 unsigned int lvds_dither:1;
543 unsigned int int_crt_support:1;
544 unsigned int lvds_use_ssc:1;
545 unsigned int int_lvds_support:1;
546 unsigned int display_clock_mode:1;
547 unsigned int fdi_rx_polarity_inverted:1;
548 unsigned int panel_type:4;
550 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
551 enum drm_panel_orientation orientation;
553 enum drrs_support_type drrs_type;
563 struct edp_power_seq pps;
570 bool require_aux_wakeup;
572 enum psr_lines_to_wait lines_to_wait;
573 int tp1_wakeup_time_us;
574 int tp2_tp3_wakeup_time_us;
575 int psr2_tp2_tp3_wakeup_time_us;
580 u16 brightness_precision_bits;
583 u8 min_brightness; /* min_brightness/255 of max */
584 u8 controller; /* brightness controller number */
585 enum intel_backlight_type type;
591 struct mipi_config *config;
592 struct mipi_pps_data *pps;
598 const u8 *sequence[MIPI_SEQ_MAX];
599 u8 *deassert_seq; /* Used by fixup_mipi_sequences() */
600 enum drm_panel_orientation orientation;
605 struct list_head display_devices;
607 struct intel_bios_encoder_data *ports[I915_MAX_PORTS]; /* Non-NULL if port present. */
608 struct sdvo_device_mapping sdvo_mappings[2];
611 struct i915_frontbuffer_tracking {
615 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
622 struct i915_virtual_gpu {
623 struct mutex lock; /* serialises sending of g2v_notify command pkts */
628 struct intel_cdclk_config {
629 unsigned int cdclk, vco, ref, bypass;
633 struct i915_selftest_stash {
635 struct ida mock_region_instances;
638 /* intel_audio.c private */
639 struct intel_audio_funcs;
640 struct intel_audio_private {
641 /* Display internal audio functions */
642 const struct intel_audio_funcs *funcs;
644 /* hda/i915 audio component */
645 struct i915_audio_component *component;
646 bool component_registered;
647 /* mutex for audio/video sync */
652 /* Used to save the pipe-to-encoder mapping for audio */
653 struct intel_encoder *encoder_map[I915_MAX_PIPES];
655 /* necessary resource sharing with HDMI LPE audio driver. */
657 struct platform_device *platdev;
662 struct drm_i915_private {
663 struct drm_device drm;
665 /* FIXME: Device release actions should all be moved to drmm_ */
668 /* i915 device parameters */
669 struct i915_params params;
671 const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
672 struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
673 struct intel_driver_caps caps;
676 * Data Stolen Memory - aka "i915 stolen memory" gives us the start and
677 * end of stolen which we can optionally use to create GEM objects
678 * backed by stolen memory. Note that stolen_usable_size tells us
679 * exactly how much of this we are actually allowed to use, given that
680 * some portion of it is in fact reserved for use by hardware functions.
684 * Reseved portion of Data Stolen Memory
686 struct resource dsm_reserved;
689 * Stolen memory is segmented in hardware with different portions
690 * offlimits to certain functions.
692 * The drm_mm is initialised to the total accessible range, as found
693 * from the PCI config. On Broadwell+, this is further restricted to
694 * avoid the first page! The upper end of stolen memory is reserved for
695 * hardware functions and similarly removed from the accessible range.
697 resource_size_t stolen_usable_size; /* Total size minus reserved ranges */
699 struct intel_uncore uncore;
700 struct intel_uncore_mmio_debug mmio_debug;
702 struct i915_virtual_gpu vgpu;
704 struct intel_gvt *gvt;
706 struct intel_wopcm wopcm;
708 struct intel_dmc dmc;
710 struct intel_gmbus gmbus[GMBUS_NUM_PINS];
712 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
713 * controller on different i2c buses. */
714 struct mutex gmbus_mutex;
717 * Base address of where the gmbus and gpio blocks are located (either
718 * on PCH or on SoC for platforms without PCH).
722 /* MMIO base address for MIPI regs */
727 wait_queue_head_t gmbus_wait_queue;
729 struct pci_dev *bridge_dev;
731 struct rb_root uabi_engines;
733 struct resource mch_res;
735 /* protects the irq masks */
738 bool display_irqs_enabled;
740 /* Sideband mailbox protection */
741 struct mutex sb_lock;
742 struct pm_qos_request sb_qos;
744 /** Cached value of IMR to avoid reads in updating the bitfield */
747 u32 de_irq_mask[I915_MAX_PIPES];
749 u32 pipestat_irq_mask[I915_MAX_PIPES];
751 struct i915_hotplug hotplug;
752 struct intel_fbc *fbc;
753 struct i915_drrs drrs;
754 struct intel_opregion opregion;
755 struct intel_vbt_data vbt;
757 bool preserve_bios_swizzle;
760 struct intel_overlay *overlay;
762 /* backlight registers and fields in struct intel_panel */
763 struct mutex backlight_lock;
765 /* protects panel power sequencer state */
766 struct mutex pps_mutex;
768 unsigned int fsb_freq, mem_freq, is_ddr3;
769 unsigned int skl_preferred_vco_freq;
770 unsigned int max_cdclk_freq;
772 unsigned int max_dotclk_freq;
773 unsigned int hpll_freq;
774 unsigned int fdi_pll_freq;
775 unsigned int czclk_freq;
778 /* The current hardware cdclk configuration */
779 struct intel_cdclk_config hw;
781 /* cdclk, divider, and ratio table from bspec */
782 const struct intel_cdclk_vals *table;
784 struct intel_global_obj obj;
788 /* The current hardware dbuf configuration */
791 struct intel_global_obj obj;
795 * wq - Driver workqueue for GEM.
797 * NOTE: Work items scheduled here are not allowed to grab any modeset
798 * locks, for otherwise the flushing done in the pageflip code will
799 * result in deadlocks.
801 struct workqueue_struct *wq;
803 /* ordered wq for modesets */
804 struct workqueue_struct *modeset_wq;
805 /* unbound hipri wq for page flips/plane updates */
806 struct workqueue_struct *flip_wq;
808 /* pm private clock gating functions */
809 const struct drm_i915_clock_gating_funcs *clock_gating_funcs;
811 /* pm display functions */
812 const struct drm_i915_wm_disp_funcs *wm_disp;
814 /* irq display functions */
815 const struct intel_hotplug_funcs *hotplug_funcs;
817 /* fdi display functions */
818 const struct intel_fdi_funcs *fdi_funcs;
820 /* display pll funcs */
821 const struct intel_dpll_funcs *dpll_funcs;
823 /* Display functions */
824 const struct drm_i915_display_funcs *display;
826 /* Display internal color functions */
827 const struct intel_color_funcs *color_funcs;
829 /* Display CDCLK functions */
830 const struct intel_cdclk_funcs *cdclk_funcs;
832 /* PCH chipset type */
833 enum intel_pch pch_type;
834 unsigned short pch_id;
836 unsigned long quirks;
838 struct drm_atomic_state *modeset_restore_state;
839 struct drm_modeset_acquire_ctx reset_ctx;
841 struct i915_ggtt ggtt; /* VM representing the global address space */
843 struct i915_gem_mm mm;
845 /* Kernel Modesetting */
848 * dpll and cdclk state is protected by connection_mutex
849 * dpll.lock serializes intel_{prepare,enable,disable}_shared_dpll.
850 * Must be global rather than per dpll, because on some platforms plls
857 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
858 const struct intel_dpll_mgr *mgr;
866 struct list_head global_obj_list;
869 * For reading active_pipes holding any crtc lock is
870 * sufficient, for writing must hold all of them.
874 struct i915_frontbuffer_tracking fb_tracking;
876 struct intel_atomic_helper {
877 struct llist_head free_list;
878 struct work_struct free_work;
881 bool mchbar_need_disable;
883 struct intel_l3_parity l3_parity;
886 * HTI (aka HDPORT) state read during initial hw readout. Most
887 * platforms don't have HTI, so this will just stay 0. Those that do
888 * will use this later to figure out which PLLs and PHYs are unavailable
895 * Cannot be determined by PCIID. You must always read a register.
899 struct i915_power_domains power_domains;
901 struct i915_gpu_error gpu_error;
903 struct drm_i915_gem_object *vlv_pctx;
905 /* list of fbdev register on this device */
906 struct intel_fbdev *fbdev;
907 struct work_struct fbdev_suspend_work;
909 struct drm_property *broadcast_rgb_property;
910 struct drm_property *force_audio_property;
914 /* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
917 * Shadows for CHV DPLL_MD regs to keep the state
918 * checker somewhat working in the presence hardware
919 * crappiness (can't read out DPLL_MD for pipes B & C).
921 u32 chv_dpll_md[I915_MAX_PIPES];
925 bool power_domains_suspended;
926 struct i915_suspend_saved_registers regfile;
927 struct vlv_s0ix_state *vlv_s0ix_state;
930 I915_SAGV_UNKNOWN = 0,
933 I915_SAGV_NOT_CONTROLLED
936 u32 sagv_block_time_us;
940 * Raw watermark latency values:
941 * in 0.1us units for WM0,
942 * in 0.5us units for WM1+.
951 * Raw watermark memory latency values
952 * for SKL for all 8 levels
957 /* current hardware state */
959 struct ilk_wm_values hw;
960 struct vlv_wm_values vlv;
961 struct g4x_wm_values g4x;
967 * Should be held around atomic WM register writing; also
968 * protects * intel_crtc->wm.active and
969 * crtc_state->wm.need_postvbl_update.
971 struct mutex wm_mutex;
975 bool wm_lv_0_adjust_needed;
977 bool symmetric_memory;
978 enum intel_dram_type {
988 u8 num_psf_gv_points;
991 struct intel_bw_info {
992 /* for each QGV point */
993 unsigned int deratedbw[I915_NUM_QGV_POINTS];
994 /* for each PSF GV point */
995 unsigned int psf_bw[I915_NUM_PSF_GV_POINTS];
997 u8 num_psf_gv_points;
1001 struct intel_global_obj bw_obj;
1003 struct intel_runtime_pm runtime_pm;
1005 struct i915_perf perf;
1007 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1008 struct intel_gt gt0;
1011 struct i915_gem_contexts {
1012 spinlock_t lock; /* locks list */
1013 struct list_head list;
1017 * We replace the local file with a global mappings as the
1018 * backing storage for the mmap is on the device and not
1019 * on the struct file, and we do not want to prolong the
1020 * lifetime of the local fd. To minimise the number of
1021 * anonymous inodes we create, we use a global singleton to
1022 * share the global mapping.
1024 struct file *mmap_singleton;
1027 u8 framestart_delay;
1029 /* Window2 specifies time required to program DSB (Window2) in number of scan lines */
1034 /* For i915gm/i945gm vblank irq workaround */
1039 /* perform PHY state sanity checks? */
1040 bool chv_phy_assert[2];
1044 struct intel_audio_private audio;
1046 struct i915_pmu pmu;
1048 struct i915_hdcp_comp_master *hdcp_master;
1049 bool hdcp_comp_added;
1051 /* Mutex to protect the above hdcp component related values. */
1052 struct mutex hdcp_comp_mutex;
1054 /* The TTM device structure. */
1055 struct ttm_device bdev;
1057 I915_SELFTEST_DECLARE(struct i915_selftest_stash selftest;)
1060 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1061 * will be rejected. Instead look for a better place.
1065 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1067 return container_of(dev, struct drm_i915_private, drm);
1070 static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
1072 return dev_get_drvdata(kdev);
1075 static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
1077 return pci_get_drvdata(pdev);
1080 static inline struct intel_gt *to_gt(struct drm_i915_private *i915)
1085 /* Simple iterator over all initialised engines */
1086 #define for_each_engine(engine__, dev_priv__, id__) \
1088 (id__) < I915_NUM_ENGINES; \
1090 for_each_if ((engine__) = (dev_priv__)->engine[(id__)])
1092 /* Iterator over subset of engines selected by mask */
1093 #define for_each_engine_masked(engine__, gt__, mask__, tmp__) \
1094 for ((tmp__) = (mask__) & (gt__)->info.engine_mask; \
1096 ((engine__) = (gt__)->engine[__mask_next_bit(tmp__)]), 1 : \
1099 #define rb_to_uabi_engine(rb) \
1100 rb_entry_safe(rb, struct intel_engine_cs, uabi_node)
1102 #define for_each_uabi_engine(engine__, i915__) \
1103 for ((engine__) = rb_to_uabi_engine(rb_first(&(i915__)->uabi_engines));\
1105 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1107 #define for_each_uabi_class_engine(engine__, class__, i915__) \
1108 for ((engine__) = intel_engine_lookup_user((i915__), (class__), 0); \
1109 (engine__) && (engine__)->uabi_class == (class__); \
1110 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1112 #define I915_GTT_OFFSET_NONE ((u32)-1)
1115 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1116 * considered to be the frontbuffer for the given plane interface-wise. This
1117 * doesn't mean that the hw necessarily already scans it out, but that any
1118 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1120 * We have one bit per pipe and per scanout plane type.
1122 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
1123 #define INTEL_FRONTBUFFER(pipe, plane_id) ({ \
1124 BUILD_BUG_ON(INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES > 32); \
1125 BUILD_BUG_ON(I915_MAX_PLANES > INTEL_FRONTBUFFER_BITS_PER_PIPE); \
1126 BIT((plane_id) + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)); \
1128 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1129 BIT(INTEL_FRONTBUFFER_BITS_PER_PIPE - 1 + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1130 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1131 GENMASK(INTEL_FRONTBUFFER_BITS_PER_PIPE * ((pipe) + 1) - 1, \
1132 INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1134 #define INTEL_INFO(dev_priv) (&(dev_priv)->__info)
1135 #define RUNTIME_INFO(dev_priv) (&(dev_priv)->__runtime)
1136 #define DRIVER_CAPS(dev_priv) (&(dev_priv)->caps)
1138 #define INTEL_DEVID(dev_priv) (RUNTIME_INFO(dev_priv)->device_id)
1140 #define IP_VER(ver, rel) ((ver) << 8 | (rel))
1142 #define GRAPHICS_VER(i915) (INTEL_INFO(i915)->graphics.ver)
1143 #define GRAPHICS_VER_FULL(i915) IP_VER(INTEL_INFO(i915)->graphics.ver, \
1144 INTEL_INFO(i915)->graphics.rel)
1145 #define IS_GRAPHICS_VER(i915, from, until) \
1146 (GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
1148 #define MEDIA_VER(i915) (INTEL_INFO(i915)->media.ver)
1149 #define MEDIA_VER_FULL(i915) IP_VER(INTEL_INFO(i915)->media.arch, \
1150 INTEL_INFO(i915)->media.rel)
1151 #define IS_MEDIA_VER(i915, from, until) \
1152 (MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
1154 #define DISPLAY_VER(i915) (INTEL_INFO(i915)->display.ver)
1155 #define IS_DISPLAY_VER(i915, from, until) \
1156 (DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))
1158 #define INTEL_REVID(dev_priv) (to_pci_dev((dev_priv)->drm.dev)->revision)
1160 #define HAS_DSB(dev_priv) (INTEL_INFO(dev_priv)->display.has_dsb)
1162 #define INTEL_DISPLAY_STEP(__i915) (RUNTIME_INFO(__i915)->step.display_step)
1163 #define INTEL_GRAPHICS_STEP(__i915) (RUNTIME_INFO(__i915)->step.graphics_step)
1164 #define INTEL_MEDIA_STEP(__i915) (RUNTIME_INFO(__i915)->step.media_step)
1166 #define IS_DISPLAY_STEP(__i915, since, until) \
1167 (drm_WARN_ON(&(__i915)->drm, INTEL_DISPLAY_STEP(__i915) == STEP_NONE), \
1168 INTEL_DISPLAY_STEP(__i915) >= (since) && INTEL_DISPLAY_STEP(__i915) < (until))
1170 #define IS_GRAPHICS_STEP(__i915, since, until) \
1171 (drm_WARN_ON(&(__i915)->drm, INTEL_GRAPHICS_STEP(__i915) == STEP_NONE), \
1172 INTEL_GRAPHICS_STEP(__i915) >= (since) && INTEL_GRAPHICS_STEP(__i915) < (until))
1174 #define IS_MEDIA_STEP(__i915, since, until) \
1175 (drm_WARN_ON(&(__i915)->drm, INTEL_MEDIA_STEP(__i915) == STEP_NONE), \
1176 INTEL_MEDIA_STEP(__i915) >= (since) && INTEL_MEDIA_STEP(__i915) < (until))
1178 static __always_inline unsigned int
1179 __platform_mask_index(const struct intel_runtime_info *info,
1180 enum intel_platform p)
1182 const unsigned int pbits =
1183 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1185 /* Expand the platform_mask array if this fails. */
1186 BUILD_BUG_ON(INTEL_MAX_PLATFORMS >
1187 pbits * ARRAY_SIZE(info->platform_mask));
1192 static __always_inline unsigned int
1193 __platform_mask_bit(const struct intel_runtime_info *info,
1194 enum intel_platform p)
1196 const unsigned int pbits =
1197 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1199 return p % pbits + INTEL_SUBPLATFORM_BITS;
1203 intel_subplatform(const struct intel_runtime_info *info, enum intel_platform p)
1205 const unsigned int pi = __platform_mask_index(info, p);
1207 return info->platform_mask[pi] & INTEL_SUBPLATFORM_MASK;
1210 static __always_inline bool
1211 IS_PLATFORM(const struct drm_i915_private *i915, enum intel_platform p)
1213 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1214 const unsigned int pi = __platform_mask_index(info, p);
1215 const unsigned int pb = __platform_mask_bit(info, p);
1217 BUILD_BUG_ON(!__builtin_constant_p(p));
1219 return info->platform_mask[pi] & BIT(pb);
1222 static __always_inline bool
1223 IS_SUBPLATFORM(const struct drm_i915_private *i915,
1224 enum intel_platform p, unsigned int s)
1226 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1227 const unsigned int pi = __platform_mask_index(info, p);
1228 const unsigned int pb = __platform_mask_bit(info, p);
1229 const unsigned int msb = BITS_PER_TYPE(info->platform_mask[0]) - 1;
1230 const u32 mask = info->platform_mask[pi];
1232 BUILD_BUG_ON(!__builtin_constant_p(p));
1233 BUILD_BUG_ON(!__builtin_constant_p(s));
1234 BUILD_BUG_ON((s) >= INTEL_SUBPLATFORM_BITS);
1236 /* Shift and test on the MSB position so sign flag can be used. */
1237 return ((mask << (msb - pb)) & (mask << (msb - s))) & BIT(msb);
1240 #define IS_MOBILE(dev_priv) (INTEL_INFO(dev_priv)->is_mobile)
1241 #define IS_DGFX(dev_priv) (INTEL_INFO(dev_priv)->is_dgfx)
1243 #define IS_I830(dev_priv) IS_PLATFORM(dev_priv, INTEL_I830)
1244 #define IS_I845G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I845G)
1245 #define IS_I85X(dev_priv) IS_PLATFORM(dev_priv, INTEL_I85X)
1246 #define IS_I865G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I865G)
1247 #define IS_I915G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915G)
1248 #define IS_I915GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915GM)
1249 #define IS_I945G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945G)
1250 #define IS_I945GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945GM)
1251 #define IS_I965G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965G)
1252 #define IS_I965GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965GM)
1253 #define IS_G45(dev_priv) IS_PLATFORM(dev_priv, INTEL_G45)
1254 #define IS_GM45(dev_priv) IS_PLATFORM(dev_priv, INTEL_GM45)
1255 #define IS_G4X(dev_priv) (IS_G45(dev_priv) || IS_GM45(dev_priv))
1256 #define IS_PINEVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_PINEVIEW)
1257 #define IS_G33(dev_priv) IS_PLATFORM(dev_priv, INTEL_G33)
1258 #define IS_IRONLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IRONLAKE)
1259 #define IS_IRONLAKE_M(dev_priv) \
1260 (IS_PLATFORM(dev_priv, INTEL_IRONLAKE) && IS_MOBILE(dev_priv))
1261 #define IS_SANDYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SANDYBRIDGE)
1262 #define IS_IVYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IVYBRIDGE)
1263 #define IS_IVB_GT1(dev_priv) (IS_IVYBRIDGE(dev_priv) && \
1264 INTEL_INFO(dev_priv)->gt == 1)
1265 #define IS_VALLEYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_VALLEYVIEW)
1266 #define IS_CHERRYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_CHERRYVIEW)
1267 #define IS_HASWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_HASWELL)
1268 #define IS_BROADWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROADWELL)
1269 #define IS_SKYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SKYLAKE)
1270 #define IS_BROXTON(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROXTON)
1271 #define IS_KABYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_KABYLAKE)
1272 #define IS_GEMINILAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_GEMINILAKE)
1273 #define IS_COFFEELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COFFEELAKE)
1274 #define IS_COMETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COMETLAKE)
1275 #define IS_ICELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ICELAKE)
1276 #define IS_JSL_EHL(dev_priv) (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE) || \
1277 IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
1278 #define IS_TIGERLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_TIGERLAKE)
1279 #define IS_ROCKETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)
1280 #define IS_DG1(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG1)
1281 #define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S)
1282 #define IS_ALDERLAKE_P(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_P)
1283 #define IS_XEHPSDV(dev_priv) IS_PLATFORM(dev_priv, INTEL_XEHPSDV)
1284 #define IS_DG2(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG2)
1285 #define IS_DG2_G10(dev_priv) \
1286 IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G10)
1287 #define IS_DG2_G11(dev_priv) \
1288 IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G11)
1289 #define IS_ADLS_RPLS(dev_priv) \
1290 IS_SUBPLATFORM(dev_priv, INTEL_ALDERLAKE_S, INTEL_SUBPLATFORM_RPL_S)
1291 #define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \
1292 (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00)
1293 #define IS_BDW_ULT(dev_priv) \
1294 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULT)
1295 #define IS_BDW_ULX(dev_priv) \
1296 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULX)
1297 #define IS_BDW_GT3(dev_priv) (IS_BROADWELL(dev_priv) && \
1298 INTEL_INFO(dev_priv)->gt == 3)
1299 #define IS_HSW_ULT(dev_priv) \
1300 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULT)
1301 #define IS_HSW_GT3(dev_priv) (IS_HASWELL(dev_priv) && \
1302 INTEL_INFO(dev_priv)->gt == 3)
1303 #define IS_HSW_GT1(dev_priv) (IS_HASWELL(dev_priv) && \
1304 INTEL_INFO(dev_priv)->gt == 1)
1305 /* ULX machines are also considered ULT. */
1306 #define IS_HSW_ULX(dev_priv) \
1307 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULX)
1308 #define IS_SKL_ULT(dev_priv) \
1309 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULT)
1310 #define IS_SKL_ULX(dev_priv) \
1311 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULX)
1312 #define IS_KBL_ULT(dev_priv) \
1313 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULT)
1314 #define IS_KBL_ULX(dev_priv) \
1315 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULX)
1316 #define IS_SKL_GT2(dev_priv) (IS_SKYLAKE(dev_priv) && \
1317 INTEL_INFO(dev_priv)->gt == 2)
1318 #define IS_SKL_GT3(dev_priv) (IS_SKYLAKE(dev_priv) && \
1319 INTEL_INFO(dev_priv)->gt == 3)
1320 #define IS_SKL_GT4(dev_priv) (IS_SKYLAKE(dev_priv) && \
1321 INTEL_INFO(dev_priv)->gt == 4)
1322 #define IS_KBL_GT2(dev_priv) (IS_KABYLAKE(dev_priv) && \
1323 INTEL_INFO(dev_priv)->gt == 2)
1324 #define IS_KBL_GT3(dev_priv) (IS_KABYLAKE(dev_priv) && \
1325 INTEL_INFO(dev_priv)->gt == 3)
1326 #define IS_CFL_ULT(dev_priv) \
1327 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULT)
1328 #define IS_CFL_ULX(dev_priv) \
1329 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULX)
1330 #define IS_CFL_GT2(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1331 INTEL_INFO(dev_priv)->gt == 2)
1332 #define IS_CFL_GT3(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1333 INTEL_INFO(dev_priv)->gt == 3)
1335 #define IS_CML_ULT(dev_priv) \
1336 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULT)
1337 #define IS_CML_ULX(dev_priv) \
1338 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULX)
1339 #define IS_CML_GT2(dev_priv) (IS_COMETLAKE(dev_priv) && \
1340 INTEL_INFO(dev_priv)->gt == 2)
1342 #define IS_ICL_WITH_PORT_F(dev_priv) \
1343 IS_SUBPLATFORM(dev_priv, INTEL_ICELAKE, INTEL_SUBPLATFORM_PORTF)
1345 #define IS_TGL_U(dev_priv) \
1346 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULT)
1348 #define IS_TGL_Y(dev_priv) \
1349 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULX)
1351 #define IS_SKL_GRAPHICS_STEP(p, since, until) (IS_SKYLAKE(p) && IS_GRAPHICS_STEP(p, since, until))
1353 #define IS_KBL_GRAPHICS_STEP(dev_priv, since, until) \
1354 (IS_KABYLAKE(dev_priv) && IS_GRAPHICS_STEP(dev_priv, since, until))
1355 #define IS_KBL_DISPLAY_STEP(dev_priv, since, until) \
1356 (IS_KABYLAKE(dev_priv) && IS_DISPLAY_STEP(dev_priv, since, until))
1358 #define IS_JSL_EHL_GRAPHICS_STEP(p, since, until) \
1359 (IS_JSL_EHL(p) && IS_GRAPHICS_STEP(p, since, until))
1360 #define IS_JSL_EHL_DISPLAY_STEP(p, since, until) \
1361 (IS_JSL_EHL(p) && IS_DISPLAY_STEP(p, since, until))
1363 #define IS_TGL_DISPLAY_STEP(__i915, since, until) \
1364 (IS_TIGERLAKE(__i915) && \
1365 IS_DISPLAY_STEP(__i915, since, until))
1367 #define IS_TGL_UY_GRAPHICS_STEP(__i915, since, until) \
1368 ((IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1369 IS_GRAPHICS_STEP(__i915, since, until))
1371 #define IS_TGL_GRAPHICS_STEP(__i915, since, until) \
1372 (IS_TIGERLAKE(__i915) && !(IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1373 IS_GRAPHICS_STEP(__i915, since, until))
1375 #define IS_RKL_DISPLAY_STEP(p, since, until) \
1376 (IS_ROCKETLAKE(p) && IS_DISPLAY_STEP(p, since, until))
1378 #define IS_DG1_GRAPHICS_STEP(p, since, until) \
1379 (IS_DG1(p) && IS_GRAPHICS_STEP(p, since, until))
1380 #define IS_DG1_DISPLAY_STEP(p, since, until) \
1381 (IS_DG1(p) && IS_DISPLAY_STEP(p, since, until))
1383 #define IS_ADLS_DISPLAY_STEP(__i915, since, until) \
1384 (IS_ALDERLAKE_S(__i915) && \
1385 IS_DISPLAY_STEP(__i915, since, until))
1387 #define IS_ADLS_GRAPHICS_STEP(__i915, since, until) \
1388 (IS_ALDERLAKE_S(__i915) && \
1389 IS_GRAPHICS_STEP(__i915, since, until))
1391 #define IS_ADLP_DISPLAY_STEP(__i915, since, until) \
1392 (IS_ALDERLAKE_P(__i915) && \
1393 IS_DISPLAY_STEP(__i915, since, until))
1395 #define IS_ADLP_GRAPHICS_STEP(__i915, since, until) \
1396 (IS_ALDERLAKE_P(__i915) && \
1397 IS_GRAPHICS_STEP(__i915, since, until))
1399 #define IS_XEHPSDV_GRAPHICS_STEP(__i915, since, until) \
1400 (IS_XEHPSDV(__i915) && IS_GRAPHICS_STEP(__i915, since, until))
1403 * DG2 hardware steppings are a bit unusual. The hardware design was forked
1404 * to create two variants (G10 and G11) which have distinct workaround sets.
1405 * The G11 fork of the DG2 design resets the GT stepping back to "A0" for its
1406 * first iteration, even though it's more similar to a G10 B0 stepping in terms
1407 * of functionality and workarounds. However the display stepping does not
1408 * reset in the same manner --- a specific stepping like "B0" has a consistent
1409 * meaning regardless of whether it belongs to a G10 or G11 DG2.
1411 * TLDR: All GT workarounds and stepping-specific logic must be applied in
1412 * relation to a specific subplatform (G10 or G11), whereas display workarounds
1413 * and stepping-specific logic will be applied with a general DG2-wide stepping
1416 #define IS_DG2_GRAPHICS_STEP(__i915, variant, since, until) \
1417 (IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
1418 IS_GRAPHICS_STEP(__i915, since, until))
1420 #define IS_DG2_DISPLAY_STEP(__i915, since, until) \
1421 (IS_DG2(__i915) && \
1422 IS_DISPLAY_STEP(__i915, since, until))
1424 #define IS_LP(dev_priv) (INTEL_INFO(dev_priv)->is_lp)
1425 #define IS_GEN9_LP(dev_priv) (GRAPHICS_VER(dev_priv) == 9 && IS_LP(dev_priv))
1426 #define IS_GEN9_BC(dev_priv) (GRAPHICS_VER(dev_priv) == 9 && !IS_LP(dev_priv))
1428 #define __HAS_ENGINE(engine_mask, id) ((engine_mask) & BIT(id))
1429 #define HAS_ENGINE(gt, id) __HAS_ENGINE((gt)->info.engine_mask, id)
1431 #define ENGINE_INSTANCES_MASK(gt, first, count) ({ \
1432 unsigned int first__ = (first); \
1433 unsigned int count__ = (count); \
1434 ((gt)->info.engine_mask & \
1435 GENMASK(first__ + count__ - 1, first__)) >> first__; \
1437 #define VDBOX_MASK(gt) \
1438 ENGINE_INSTANCES_MASK(gt, VCS0, I915_MAX_VCS)
1439 #define VEBOX_MASK(gt) \
1440 ENGINE_INSTANCES_MASK(gt, VECS0, I915_MAX_VECS)
1443 * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
1444 * All later gens can run the final buffer from the ppgtt
1446 #define CMDPARSER_USES_GGTT(dev_priv) (GRAPHICS_VER(dev_priv) == 7)
1448 #define HAS_LLC(dev_priv) (INTEL_INFO(dev_priv)->has_llc)
1449 #define HAS_SNOOP(dev_priv) (INTEL_INFO(dev_priv)->has_snoop)
1450 #define HAS_EDRAM(dev_priv) ((dev_priv)->edram_size_mb)
1451 #define HAS_SECURE_BATCHES(dev_priv) (GRAPHICS_VER(dev_priv) < 6)
1452 #define HAS_WT(dev_priv) HAS_EDRAM(dev_priv)
1454 #define HWS_NEEDS_PHYSICAL(dev_priv) (INTEL_INFO(dev_priv)->hws_needs_physical)
1456 #define HAS_LOGICAL_RING_CONTEXTS(dev_priv) \
1457 (INTEL_INFO(dev_priv)->has_logical_ring_contexts)
1458 #define HAS_LOGICAL_RING_ELSQ(dev_priv) \
1459 (INTEL_INFO(dev_priv)->has_logical_ring_elsq)
1461 #define HAS_EXECLISTS(dev_priv) HAS_LOGICAL_RING_CONTEXTS(dev_priv)
1463 #define INTEL_PPGTT(dev_priv) (INTEL_INFO(dev_priv)->ppgtt_type)
1464 #define HAS_PPGTT(dev_priv) \
1465 (INTEL_PPGTT(dev_priv) != INTEL_PPGTT_NONE)
1466 #define HAS_FULL_PPGTT(dev_priv) \
1467 (INTEL_PPGTT(dev_priv) >= INTEL_PPGTT_FULL)
1469 #define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
1470 GEM_BUG_ON((sizes) == 0); \
1471 ((sizes) & ~INTEL_INFO(dev_priv)->page_sizes) == 0; \
1474 #define HAS_OVERLAY(dev_priv) (INTEL_INFO(dev_priv)->display.has_overlay)
1475 #define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
1476 (INTEL_INFO(dev_priv)->display.overlay_needs_physical)
1478 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1479 #define HAS_BROKEN_CS_TLB(dev_priv) (IS_I830(dev_priv) || IS_I845G(dev_priv))
1481 #define NEEDS_RC6_CTX_CORRUPTION_WA(dev_priv) \
1482 (IS_BROADWELL(dev_priv) || GRAPHICS_VER(dev_priv) == 9)
1484 /* WaRsDisableCoarsePowerGating:skl,cnl */
1485 #define NEEDS_WaRsDisableCoarsePowerGating(dev_priv) \
1486 (IS_SKL_GT3(dev_priv) || IS_SKL_GT4(dev_priv))
1488 #define HAS_GMBUS_IRQ(dev_priv) (GRAPHICS_VER(dev_priv) >= 4)
1489 #define HAS_GMBUS_BURST_READ(dev_priv) (GRAPHICS_VER(dev_priv) >= 11 || \
1490 IS_GEMINILAKE(dev_priv) || \
1491 IS_KABYLAKE(dev_priv))
1493 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1494 * rows, which changed the alignment requirements and fence programming.
1496 #define HAS_128_BYTE_Y_TILING(dev_priv) (GRAPHICS_VER(dev_priv) != 2 && \
1497 !(IS_I915G(dev_priv) || IS_I915GM(dev_priv)))
1498 #define SUPPORTS_TV(dev_priv) (INTEL_INFO(dev_priv)->display.supports_tv)
1499 #define I915_HAS_HOTPLUG(dev_priv) (INTEL_INFO(dev_priv)->display.has_hotplug)
1501 #define HAS_FW_BLC(dev_priv) (GRAPHICS_VER(dev_priv) > 2)
1502 #define HAS_FBC(dev_priv) (INTEL_INFO(dev_priv)->display.has_fbc)
1503 #define HAS_CUR_FBC(dev_priv) (!HAS_GMCH(dev_priv) && GRAPHICS_VER(dev_priv) >= 7)
1505 #define HAS_IPS(dev_priv) (IS_HSW_ULT(dev_priv) || IS_BROADWELL(dev_priv))
1507 #define HAS_DP_MST(dev_priv) (INTEL_INFO(dev_priv)->display.has_dp_mst)
1508 #define HAS_DP20(dev_priv) (IS_DG2(dev_priv))
1510 #define HAS_CDCLK_CRAWL(dev_priv) (INTEL_INFO(dev_priv)->display.has_cdclk_crawl)
1511 #define HAS_DDI(dev_priv) (INTEL_INFO(dev_priv)->display.has_ddi)
1512 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
1513 #define HAS_PSR(dev_priv) (INTEL_INFO(dev_priv)->display.has_psr)
1514 #define HAS_PSR_HW_TRACKING(dev_priv) \
1515 (INTEL_INFO(dev_priv)->display.has_psr_hw_tracking)
1516 #define HAS_PSR2_SEL_FETCH(dev_priv) (GRAPHICS_VER(dev_priv) >= 12)
1517 #define HAS_TRANSCODER(dev_priv, trans) ((INTEL_INFO(dev_priv)->display.cpu_transcoder_mask & BIT(trans)) != 0)
1519 #define HAS_RC6(dev_priv) (INTEL_INFO(dev_priv)->has_rc6)
1520 #define HAS_RC6p(dev_priv) (INTEL_INFO(dev_priv)->has_rc6p)
1521 #define HAS_RC6pp(dev_priv) (false) /* HW was never validated */
1523 #define HAS_RPS(dev_priv) (INTEL_INFO(dev_priv)->has_rps)
1525 #define HAS_DMC(dev_priv) (INTEL_INFO(dev_priv)->display.has_dmc)
1527 #define HAS_MSO(i915) (GRAPHICS_VER(i915) >= 12)
1529 #define HAS_RUNTIME_PM(dev_priv) (INTEL_INFO(dev_priv)->has_runtime_pm)
1530 #define HAS_64BIT_RELOC(dev_priv) (INTEL_INFO(dev_priv)->has_64bit_reloc)
1532 #define HAS_MSLICES(dev_priv) \
1533 (INTEL_INFO(dev_priv)->has_mslices)
1536 * Set this flag, when platform requires 64K GTT page sizes or larger for
1537 * device local memory access. Also this flag implies that we require or
1538 * at least support the compact PT layout for the ppGTT when using the 64K
1541 #define HAS_64K_PAGES(dev_priv) (INTEL_INFO(dev_priv)->has_64k_pages)
1543 #define HAS_IPC(dev_priv) (INTEL_INFO(dev_priv)->display.has_ipc)
1545 #define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i))
1546 #define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM)
1548 #define HAS_GT_UC(dev_priv) (INTEL_INFO(dev_priv)->has_gt_uc)
1550 #define HAS_POOLED_EU(dev_priv) (INTEL_INFO(dev_priv)->has_pooled_eu)
1552 #define HAS_GLOBAL_MOCS_REGISTERS(dev_priv) (INTEL_INFO(dev_priv)->has_global_mocs)
1554 #define HAS_PXP(dev_priv) ((IS_ENABLED(CONFIG_DRM_I915_PXP) && \
1555 INTEL_INFO(dev_priv)->has_pxp) && \
1556 VDBOX_MASK(to_gt(dev_priv)))
1558 #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)
1560 #define HAS_LSPCON(dev_priv) (IS_GRAPHICS_VER(dev_priv, 9, 10))
1562 /* DPF == dynamic parity feature */
1563 #define HAS_L3_DPF(dev_priv) (INTEL_INFO(dev_priv)->has_l3_dpf)
1564 #define NUM_L3_SLICES(dev_priv) (IS_HSW_GT3(dev_priv) ? \
1565 2 : HAS_L3_DPF(dev_priv))
1567 #define GT_FREQUENCY_MULTIPLIER 50
1568 #define GEN9_FREQ_SCALER 3
1570 #define INTEL_NUM_PIPES(dev_priv) (hweight8(INTEL_INFO(dev_priv)->display.pipe_mask))
1572 #define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->display.pipe_mask != 0)
1574 #define HAS_VRR(i915) (GRAPHICS_VER(i915) >= 11)
1576 #define HAS_ASYNC_FLIPS(i915) (DISPLAY_VER(i915) >= 5)
1578 /* Only valid when HAS_DISPLAY() is true */
1579 #define INTEL_DISPLAY_ENABLED(dev_priv) \
1580 (drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
1582 static inline bool run_as_guest(void)
1584 return !hypervisor_is_type(X86_HYPER_NATIVE);
1587 #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \
1588 IS_ALDERLAKE_S(dev_priv))
1590 static inline bool intel_vtd_active(struct drm_i915_private *i915)
1592 if (device_iommu_mapped(i915->drm.dev))
1595 /* Running as a guest, we assume the host is enforcing VT'd */
1596 return run_as_guest();
1600 i915_print_iommu_status(struct drm_i915_private *i915, struct drm_printer *p);
1602 static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
1604 return GRAPHICS_VER(dev_priv) >= 6 && intel_vtd_active(dev_priv);
1608 intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915)
1610 return IS_BROXTON(i915) && intel_vtd_active(i915);
1614 intel_vm_no_concurrent_access_wa(struct drm_i915_private *i915)
1616 return IS_CHERRYVIEW(i915) || intel_ggtt_update_needs_vtd_wa(i915);
1619 /* i915_getparam.c */
1620 int i915_getparam_ioctl(struct drm_device *dev, void *data,
1621 struct drm_file *file_priv);
1624 int i915_gem_init_userptr(struct drm_i915_private *dev_priv);
1625 void i915_gem_cleanup_userptr(struct drm_i915_private *dev_priv);
1626 void i915_gem_init_early(struct drm_i915_private *dev_priv);
1627 void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);
1629 static inline void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
1632 * A single pass should suffice to release all the freed objects (along
1633 * most call paths) , but be a little more paranoid in that freeing
1634 * the objects does take a little amount of time, during which the rcu
1635 * callbacks could have added new objects into the freed list, and
1636 * armed the work again.
1638 while (atomic_read(&i915->mm.free_count)) {
1639 flush_delayed_work(&i915->mm.free_work);
1640 flush_delayed_work(&i915->bdev.wq);
1645 static inline void i915_gem_drain_workqueue(struct drm_i915_private *i915)
1648 * Similar to objects above (see i915_gem_drain_freed-objects), in
1649 * general we have workers that are armed by RCU and then rearm
1650 * themselves in their callbacks. To be paranoid, we need to
1651 * drain the workqueue a second time after waiting for the RCU
1652 * grace period so that we catch work queued via RCU from the first
1653 * pass. As neither drain_workqueue() nor flush_workqueue() report
1654 * a result, we make an assumption that we only don't require more
1655 * than 3 passes to catch all _recursive_ RCU delayed work.
1660 flush_workqueue(i915->wq);
1662 i915_gem_drain_freed_objects(i915);
1664 drain_workqueue(i915->wq);
1667 struct i915_vma * __must_check
1668 i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
1669 struct i915_gem_ww_ctx *ww,
1670 const struct i915_ggtt_view *view,
1671 u64 size, u64 alignment, u64 flags);
1673 struct i915_vma * __must_check
1674 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
1675 const struct i915_ggtt_view *view,
1676 u64 size, u64 alignment, u64 flags);
1678 int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
1679 unsigned long flags);
1680 #define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
1681 #define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
1682 #define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
1683 #define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)
1685 void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);
1687 int i915_gem_dumb_create(struct drm_file *file_priv,
1688 struct drm_device *dev,
1689 struct drm_mode_create_dumb *args);
1691 int __must_check i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno);
1693 static inline u32 i915_reset_count(struct i915_gpu_error *error)
1695 return atomic_read(&error->reset_count);
1698 static inline u32 i915_reset_engine_count(struct i915_gpu_error *error,
1699 const struct intel_engine_cs *engine)
1701 return atomic_read(&error->reset_engine_count[engine->uabi_class]);
1704 int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
1705 void i915_gem_driver_register(struct drm_i915_private *i915);
1706 void i915_gem_driver_unregister(struct drm_i915_private *i915);
1707 void i915_gem_driver_remove(struct drm_i915_private *dev_priv);
1708 void i915_gem_driver_release(struct drm_i915_private *dev_priv);
1709 void i915_gem_suspend(struct drm_i915_private *dev_priv);
1710 void i915_gem_suspend_late(struct drm_i915_private *dev_priv);
1711 void i915_gem_resume(struct drm_i915_private *dev_priv);
1713 int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
1715 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1716 enum i915_cache_level cache_level);
1718 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1719 struct dma_buf *dma_buf);
1721 struct dma_buf *i915_gem_prime_export(struct drm_gem_object *gem_obj, int flags);
1723 static inline struct i915_address_space *
1724 i915_gem_vm_lookup(struct drm_i915_file_private *file_priv, u32 id)
1726 struct i915_address_space *vm;
1728 xa_lock(&file_priv->vm_xa);
1729 vm = xa_load(&file_priv->vm_xa, id);
1732 xa_unlock(&file_priv->vm_xa);
1737 /* i915_gem_evict.c */
1738 int __must_check i915_gem_evict_something(struct i915_address_space *vm,
1739 u64 min_size, u64 alignment,
1740 unsigned long color,
1743 int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
1744 struct drm_mm_node *node,
1745 unsigned int flags);
1746 int i915_gem_evict_vm(struct i915_address_space *vm);
1748 /* i915_gem_internal.c */
1749 struct drm_i915_gem_object *
1750 i915_gem_object_create_internal(struct drm_i915_private *dev_priv,
1752 struct drm_i915_gem_object *
1753 __i915_gem_object_create_internal(struct drm_i915_private *dev_priv,
1754 const struct drm_i915_gem_object_ops *ops,
1757 /* i915_gem_tiling.c */
1758 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1760 struct drm_i915_private *i915 = to_i915(obj->base.dev);
1762 return i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1763 i915_gem_object_is_tiled(obj);
1766 u32 i915_gem_fence_size(struct drm_i915_private *dev_priv, u32 size,
1767 unsigned int tiling, unsigned int stride);
1768 u32 i915_gem_fence_alignment(struct drm_i915_private *dev_priv, u32 size,
1769 unsigned int tiling, unsigned int stride);
1771 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
1773 /* i915_cmd_parser.c */
1774 int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv);
1775 int intel_engine_init_cmd_parser(struct intel_engine_cs *engine);
1776 void intel_engine_cleanup_cmd_parser(struct intel_engine_cs *engine);
1777 int intel_engine_cmd_parser(struct intel_engine_cs *engine,
1778 struct i915_vma *batch,
1779 unsigned long batch_offset,
1780 unsigned long batch_length,
1781 struct i915_vma *shadow,
1783 #define I915_CMD_PARSER_TRAMPOLINE_SIZE 8
1785 /* intel_device_info.c */
1786 static inline struct intel_device_info *
1787 mkwrite_device_info(struct drm_i915_private *dev_priv)
1789 return (struct intel_device_info *)INTEL_INFO(dev_priv);
1792 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
1793 struct drm_file *file);
1795 static inline int intel_hws_csb_write_index(struct drm_i915_private *i915)
1797 if (GRAPHICS_VER(i915) >= 11)
1798 return ICL_HWS_CSB_WRITE_INDEX;
1800 return I915_HWS_CSB_WRITE_INDEX;
1803 static inline enum i915_map_type
1804 i915_coherent_map_type(struct drm_i915_private *i915,
1805 struct drm_i915_gem_object *obj, bool always_coherent)
1807 if (i915_gem_object_is_lmem(obj))
1809 if (HAS_LLC(i915) || always_coherent)