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_cdclk.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_fbc.h"
75 #include "display/intel_frontbuffer.h"
76 #include "display/intel_global_state.h"
77 #include "display/intel_gmbus.h"
78 #include "display/intel_opregion.h"
80 #include "gem/i915_gem_context_types.h"
81 #include "gem/i915_gem_shrinker.h"
82 #include "gem/i915_gem_stolen.h"
83 #include "gem/i915_gem_lmem.h"
85 #include "gt/intel_engine.h"
86 #include "gt/intel_gt_types.h"
87 #include "gt/intel_region_lmem.h"
88 #include "gt/intel_workarounds.h"
89 #include "gt/uc/intel_uc.h"
91 #include "intel_device_info.h"
92 #include "intel_memory_region.h"
93 #include "intel_pch.h"
94 #include "intel_pm_types.h"
95 #include "intel_runtime_pm.h"
96 #include "intel_step.h"
97 #include "intel_uncore.h"
98 #include "intel_wakeref.h"
99 #include "intel_wopcm.h"
101 #include "i915_gem.h"
102 #include "i915_gem_gtt.h"
103 #include "i915_gpu_error.h"
104 #include "i915_perf_types.h"
105 #include "i915_request.h"
106 #include "i915_scheduler.h"
107 #include "gt/intel_timeline.h"
108 #include "i915_vma.h"
111 /* General customization:
114 #define DRIVER_NAME "i915"
115 #define DRIVER_DESC "Intel Graphics"
116 #define DRIVER_DATE "20201103"
117 #define DRIVER_TIMESTAMP 1604406085
119 struct drm_i915_gem_object;
121 /* Threshold == 5 for long IRQs, 50 for short */
122 #define HPD_STORM_DEFAULT_THRESHOLD 50
124 struct i915_hotplug {
125 struct delayed_work hotplug_work;
127 const u32 *hpd, *pch_hpd;
130 unsigned long last_jiffies;
135 HPD_MARK_DISABLED = 2
137 } stats[HPD_NUM_PINS];
140 struct delayed_work reenable_work;
144 struct work_struct dig_port_work;
146 struct work_struct poll_init_work;
149 unsigned int hpd_storm_threshold;
150 /* Whether or not to count short HPD IRQs in HPD storms */
151 u8 hpd_short_storm_enabled;
154 * if we get a HPD irq from DP and a HPD irq from non-DP
155 * the non-DP HPD could block the workqueue on a mode config
156 * mutex getting, that userspace may have taken. However
157 * userspace is waiting on the DP workqueue to run which is
158 * blocked behind the non-DP one.
160 struct workqueue_struct *dp_wq;
163 #define I915_GEM_GPU_DOMAINS \
164 (I915_GEM_DOMAIN_RENDER | \
165 I915_GEM_DOMAIN_SAMPLER | \
166 I915_GEM_DOMAIN_COMMAND | \
167 I915_GEM_DOMAIN_INSTRUCTION | \
168 I915_GEM_DOMAIN_VERTEX)
170 struct drm_i915_private;
172 struct drm_i915_file_private {
173 struct drm_i915_private *dev_priv;
176 struct drm_file *file;
180 /** @proto_context_lock: Guards all struct i915_gem_proto_context
183 * This not only guards @proto_context_xa, but is always held
184 * whenever we manipulate any struct i915_gem_proto_context,
185 * including finalizing it on first actual use of the GEM context.
187 * See i915_gem_proto_context.
189 struct mutex proto_context_lock;
191 /** @proto_context_xa: xarray of struct i915_gem_proto_context
193 * Historically, the context uAPI allowed for two methods of
194 * setting context parameters: SET_CONTEXT_PARAM and
195 * CONTEXT_CREATE_EXT_SETPARAM. The former is allowed to be called
196 * at any time while the later happens as part of
197 * GEM_CONTEXT_CREATE. Everything settable via one was settable
198 * via the other. While some params are fairly simple and setting
199 * them on a live context is harmless such as the context priority,
200 * others are far trickier such as the VM or the set of engines.
201 * In order to swap out the VM, for instance, we have to delay
202 * until all current in-flight work is complete, swap in the new
203 * VM, and then continue. This leads to a plethora of potential
204 * race conditions we'd really rather avoid.
206 * We have since disallowed setting these more complex parameters
207 * on active contexts. This works by delaying the creation of the
208 * actual context until after the client is done configuring it
209 * with SET_CONTEXT_PARAM. From the perspective of the client, it
210 * has the same u32 context ID the whole time. From the
211 * perspective of i915, however, it's a struct i915_gem_proto_context
212 * right up until the point where we attempt to do something which
213 * the proto-context can't handle. Then the struct i915_gem_context
216 * This is accomplished via a little xarray dance. When
217 * GEM_CONTEXT_CREATE is called, we create a struct
218 * i915_gem_proto_context, reserve a slot in @context_xa but leave
219 * it NULL, and place the proto-context in the corresponding slot
220 * in @proto_context_xa. Then, in i915_gem_context_lookup(), we
221 * first check @context_xa. If it's there, we return the struct
222 * i915_gem_context and we're done. If it's not, we look in
223 * @proto_context_xa and, if we find it there, we create the actual
224 * context and kill the proto-context.
226 * In order for this dance to work properly, everything which ever
227 * touches a struct i915_gem_proto_context is guarded by
228 * @proto_context_lock, including context creation. Yes, this
229 * means context creation now takes a giant global lock but it
230 * can't really be helped and that should never be on any driver's
233 struct xarray proto_context_xa;
235 /** @context_xa: xarray of fully created i915_gem_context
237 * Write access to this xarray is guarded by @proto_context_lock.
238 * Otherwise, writers may race with finalize_create_context_locked().
240 * See @proto_context_xa.
242 struct xarray context_xa;
245 unsigned int bsd_engine;
248 * Every context ban increments per client ban score. Also
249 * hangs in short succession increments ban score. If ban threshold
250 * is reached, client is considered banned and submitting more work
251 * will fail. This is a stop gap measure to limit the badly behaving
252 * clients access to gpu. Note that unbannable contexts never increment
253 * the client ban score.
255 #define I915_CLIENT_SCORE_HANG_FAST 1
256 #define I915_CLIENT_FAST_HANG_JIFFIES (60 * HZ)
257 #define I915_CLIENT_SCORE_CONTEXT_BAN 3
258 #define I915_CLIENT_SCORE_BANNED 9
259 /** ban_score: Accumulated score of all ctx bans and fast hangs. */
261 unsigned long hang_timestamp;
264 /* Interface history:
267 * 1.2: Add Power Management
268 * 1.3: Add vblank support
269 * 1.4: Fix cmdbuffer path, add heap destroy
270 * 1.5: Add vblank pipe configuration
271 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
272 * - Support vertical blank on secondary display pipe
274 #define DRIVER_MAJOR 1
275 #define DRIVER_MINOR 6
276 #define DRIVER_PATCHLEVEL 0
278 struct intel_overlay;
279 struct intel_overlay_error_state;
281 struct sdvo_device_mapping {
290 struct intel_connector;
291 struct intel_encoder;
292 struct intel_atomic_state;
293 struct intel_cdclk_config;
294 struct intel_cdclk_funcs;
295 struct intel_cdclk_state;
296 struct intel_cdclk_vals;
297 struct intel_initial_plane_config;
302 /* functions used internal in intel_pm.c */
303 struct drm_i915_clock_gating_funcs {
304 void (*init_clock_gating)(struct drm_i915_private *dev_priv);
307 /* functions used for watermark calcs for display. */
308 struct drm_i915_wm_disp_funcs {
309 /* update_wm is for legacy wm management */
310 void (*update_wm)(struct drm_i915_private *dev_priv);
311 int (*compute_pipe_wm)(struct intel_atomic_state *state,
312 struct intel_crtc *crtc);
313 int (*compute_intermediate_wm)(struct intel_atomic_state *state,
314 struct intel_crtc *crtc);
315 void (*initial_watermarks)(struct intel_atomic_state *state,
316 struct intel_crtc *crtc);
317 void (*atomic_update_watermarks)(struct intel_atomic_state *state,
318 struct intel_crtc *crtc);
319 void (*optimize_watermarks)(struct intel_atomic_state *state,
320 struct intel_crtc *crtc);
321 int (*compute_global_watermarks)(struct intel_atomic_state *state);
324 struct intel_color_funcs {
325 int (*color_check)(struct intel_crtc_state *crtc_state);
327 * Program double buffered color management registers during
328 * vblank evasion. The registers should then latch during the
329 * next vblank start, alongside any other double buffered registers
330 * involved with the same commit.
332 void (*color_commit)(const struct intel_crtc_state *crtc_state);
334 * Load LUTs (and other single buffered color management
335 * registers). Will (hopefully) be called during the vblank
336 * following the latching of any double buffered registers
337 * involved with the same commit.
339 void (*load_luts)(const struct intel_crtc_state *crtc_state);
340 void (*read_luts)(struct intel_crtc_state *crtc_state);
343 struct intel_hotplug_funcs {
344 void (*hpd_irq_setup)(struct drm_i915_private *dev_priv);
347 struct intel_fdi_funcs {
348 void (*fdi_link_train)(struct intel_crtc *crtc,
349 const struct intel_crtc_state *crtc_state);
352 struct intel_dpll_funcs {
353 int (*crtc_compute_clock)(struct intel_crtc_state *crtc_state);
356 struct drm_i915_display_funcs {
357 /* Returns the active state of the crtc, and if the crtc is active,
358 * fills out the pipe-config with the hw state. */
359 bool (*get_pipe_config)(struct intel_crtc *,
360 struct intel_crtc_state *);
361 void (*get_initial_plane_config)(struct intel_crtc *,
362 struct intel_initial_plane_config *);
363 void (*crtc_enable)(struct intel_atomic_state *state,
364 struct intel_crtc *crtc);
365 void (*crtc_disable)(struct intel_atomic_state *state,
366 struct intel_crtc *crtc);
367 void (*commit_modeset_enables)(struct intel_atomic_state *state);
370 #define I915_COLOR_UNEVICTABLE (-1) /* a non-vma sharing the address space */
373 * HIGH_RR is the highest eDP panel refresh rate read from EDID
374 * LOW_RR is the lowest eDP panel refresh rate found from EDID
375 * parsing for same resolution.
377 enum drrs_refresh_rate_type {
380 DRRS_MAX_RR, /* RR count */
383 enum drrs_support_type {
384 DRRS_NOT_SUPPORTED = 0,
385 STATIC_DRRS_SUPPORT = 1,
386 SEAMLESS_DRRS_SUPPORT = 2
392 struct delayed_work work;
394 unsigned busy_frontbuffer_bits;
395 enum drrs_refresh_rate_type refresh_rate_type;
396 enum drrs_support_type type;
399 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
400 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
401 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
402 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
403 #define QUIRK_INCREASE_T12_DELAY (1<<6)
404 #define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
405 #define QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK (1<<8)
410 struct i2c_adapter adapter;
411 #define GMBUS_FORCE_BIT_RETRY (1U << 31)
415 struct i2c_algo_bit_data bit_algo;
416 struct drm_i915_private *dev_priv;
419 struct i915_suspend_saved_registers {
427 struct vlv_s0ix_state;
429 #define MAX_L3_SLICES 2
430 struct intel_l3_parity {
431 u32 *remap_info[MAX_L3_SLICES];
432 struct work_struct error_work;
438 * Shortcut for the stolen region. This points to either
439 * INTEL_REGION_STOLEN_SMEM for integrated platforms, or
440 * INTEL_REGION_STOLEN_LMEM for discrete, or NULL if the device doesn't
443 struct intel_memory_region *stolen_region;
444 /** Memory allocator for GTT stolen memory */
445 struct drm_mm stolen;
446 /** Protects the usage of the GTT stolen memory allocator. This is
447 * always the inner lock when overlapping with struct_mutex. */
448 struct mutex stolen_lock;
450 /* Protects bound_list/unbound_list and #drm_i915_gem_object.mm.link */
454 * List of objects which are purgeable.
456 struct list_head purge_list;
459 * List of objects which have allocated pages and are shrinkable.
461 struct list_head shrink_list;
464 * List of objects which are pending destruction.
466 struct llist_head free_list;
467 struct delayed_work free_work;
469 * Count of objects pending destructions. Used to skip needlessly
470 * waiting on an RCU barrier if no objects are waiting to be freed.
475 * tmpfs instance used for shmem backed objects
477 struct vfsmount *gemfs;
479 struct intel_memory_region *regions[INTEL_REGION_UNKNOWN];
481 struct notifier_block oom_notifier;
482 struct notifier_block vmap_notifier;
483 struct shrinker shrinker;
485 #ifdef CONFIG_MMU_NOTIFIER
487 * notifier_lock for mmu notifiers, memory may not be allocated
488 * while holding this lock.
490 rwlock_t notifier_lock;
493 /* shrinker accounting, also useful for userland debugging */
498 #define I915_IDLE_ENGINES_TIMEOUT (200) /* in ms */
500 unsigned long i915_fence_context_timeout(const struct drm_i915_private *i915,
503 static inline unsigned long
504 i915_fence_timeout(const struct drm_i915_private *i915)
506 return i915_fence_context_timeout(i915, U64_MAX);
509 /* Amount of SAGV/QGV points, BSpec precisely defines this */
510 #define I915_NUM_QGV_POINTS 8
512 #define HAS_HW_SAGV_WM(i915) (DISPLAY_VER(i915) >= 13 && !IS_DGFX(i915))
514 /* Amount of PSF GV points, BSpec precisely defines this */
515 #define I915_NUM_PSF_GV_POINTS 3
517 struct intel_vbt_data {
521 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
522 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
525 unsigned int int_tv_support:1;
526 unsigned int lvds_dither:1;
527 unsigned int int_crt_support:1;
528 unsigned int lvds_use_ssc:1;
529 unsigned int int_lvds_support:1;
530 unsigned int display_clock_mode:1;
531 unsigned int fdi_rx_polarity_inverted:1;
532 unsigned int panel_type:4;
534 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
535 enum drm_panel_orientation orientation;
537 enum drrs_support_type drrs_type;
547 struct edp_power_seq pps;
554 bool require_aux_wakeup;
556 int tp1_wakeup_time_us;
557 int tp2_tp3_wakeup_time_us;
558 int psr2_tp2_tp3_wakeup_time_us;
563 u16 brightness_precision_bits;
566 u8 min_brightness; /* min_brightness/255 of max */
567 u8 controller; /* brightness controller number */
568 enum intel_backlight_type type;
574 struct mipi_config *config;
575 struct mipi_pps_data *pps;
581 const u8 *sequence[MIPI_SEQ_MAX];
582 u8 *deassert_seq; /* Used by fixup_mipi_sequences() */
583 enum drm_panel_orientation orientation;
588 struct list_head display_devices;
590 struct intel_bios_encoder_data *ports[I915_MAX_PORTS]; /* Non-NULL if port present. */
591 struct sdvo_device_mapping sdvo_mappings[2];
594 struct i915_frontbuffer_tracking {
598 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
605 struct i915_virtual_gpu {
606 struct mutex lock; /* serialises sending of g2v_notify command pkts */
611 struct i915_selftest_stash {
613 struct ida mock_region_instances;
616 /* intel_audio.c private */
617 struct intel_audio_funcs;
618 struct intel_audio_private {
619 /* Display internal audio functions */
620 const struct intel_audio_funcs *funcs;
622 /* hda/i915 audio component */
623 struct i915_audio_component *component;
624 bool component_registered;
625 /* mutex for audio/video sync */
630 /* Used to save the pipe-to-encoder mapping for audio */
631 struct intel_encoder *encoder_map[I915_MAX_PIPES];
633 /* necessary resource sharing with HDMI LPE audio driver. */
635 struct platform_device *platdev;
640 struct drm_i915_private {
641 struct drm_device drm;
643 /* FIXME: Device release actions should all be moved to drmm_ */
646 /* i915 device parameters */
647 struct i915_params params;
649 const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
650 struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
651 struct intel_driver_caps caps;
654 * Data Stolen Memory - aka "i915 stolen memory" gives us the start and
655 * end of stolen which we can optionally use to create GEM objects
656 * backed by stolen memory. Note that stolen_usable_size tells us
657 * exactly how much of this we are actually allowed to use, given that
658 * some portion of it is in fact reserved for use by hardware functions.
662 * Reseved portion of Data Stolen Memory
664 struct resource dsm_reserved;
667 * Stolen memory is segmented in hardware with different portions
668 * offlimits to certain functions.
670 * The drm_mm is initialised to the total accessible range, as found
671 * from the PCI config. On Broadwell+, this is further restricted to
672 * avoid the first page! The upper end of stolen memory is reserved for
673 * hardware functions and similarly removed from the accessible range.
675 resource_size_t stolen_usable_size; /* Total size minus reserved ranges */
677 struct intel_uncore uncore;
678 struct intel_uncore_mmio_debug mmio_debug;
680 struct i915_virtual_gpu vgpu;
682 struct intel_gvt *gvt;
684 struct intel_wopcm wopcm;
686 struct intel_dmc dmc;
688 struct intel_gmbus gmbus[GMBUS_NUM_PINS];
690 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
691 * controller on different i2c buses. */
692 struct mutex gmbus_mutex;
695 * Base address of where the gmbus and gpio blocks are located (either
696 * on PCH or on SoC for platforms without PCH).
700 /* MMIO base address for MIPI regs */
705 wait_queue_head_t gmbus_wait_queue;
707 struct pci_dev *bridge_dev;
709 struct rb_root uabi_engines;
711 struct resource mch_res;
713 /* protects the irq masks */
716 bool display_irqs_enabled;
718 /* Sideband mailbox protection */
719 struct mutex sb_lock;
720 struct pm_qos_request sb_qos;
722 /** Cached value of IMR to avoid reads in updating the bitfield */
725 u32 de_irq_mask[I915_MAX_PIPES];
727 u32 pipestat_irq_mask[I915_MAX_PIPES];
729 struct i915_hotplug hotplug;
730 struct intel_fbc *fbc[I915_MAX_FBCS];
731 struct i915_drrs drrs;
732 struct intel_opregion opregion;
733 struct intel_vbt_data vbt;
735 bool preserve_bios_swizzle;
738 struct intel_overlay *overlay;
740 /* backlight registers and fields in struct intel_panel */
741 struct mutex backlight_lock;
743 /* protects panel power sequencer state */
744 struct mutex pps_mutex;
746 unsigned int fsb_freq, mem_freq, is_ddr3;
747 unsigned int skl_preferred_vco_freq;
748 unsigned int max_cdclk_freq;
750 unsigned int max_dotclk_freq;
751 unsigned int hpll_freq;
752 unsigned int fdi_pll_freq;
753 unsigned int czclk_freq;
756 /* The current hardware cdclk configuration */
757 struct intel_cdclk_config hw;
759 /* cdclk, divider, and ratio table from bspec */
760 const struct intel_cdclk_vals *table;
762 struct intel_global_obj obj;
766 /* The current hardware dbuf configuration */
769 struct intel_global_obj obj;
773 * wq - Driver workqueue for GEM.
775 * NOTE: Work items scheduled here are not allowed to grab any modeset
776 * locks, for otherwise the flushing done in the pageflip code will
777 * result in deadlocks.
779 struct workqueue_struct *wq;
781 /* ordered wq for modesets */
782 struct workqueue_struct *modeset_wq;
783 /* unbound hipri wq for page flips/plane updates */
784 struct workqueue_struct *flip_wq;
786 /* pm private clock gating functions */
787 const struct drm_i915_clock_gating_funcs *clock_gating_funcs;
789 /* pm display functions */
790 const struct drm_i915_wm_disp_funcs *wm_disp;
792 /* irq display functions */
793 const struct intel_hotplug_funcs *hotplug_funcs;
795 /* fdi display functions */
796 const struct intel_fdi_funcs *fdi_funcs;
798 /* display pll funcs */
799 const struct intel_dpll_funcs *dpll_funcs;
801 /* Display functions */
802 const struct drm_i915_display_funcs *display;
804 /* Display internal color functions */
805 const struct intel_color_funcs *color_funcs;
807 /* Display CDCLK functions */
808 const struct intel_cdclk_funcs *cdclk_funcs;
810 /* PCH chipset type */
811 enum intel_pch pch_type;
812 unsigned short pch_id;
814 unsigned long quirks;
816 struct drm_atomic_state *modeset_restore_state;
817 struct drm_modeset_acquire_ctx reset_ctx;
819 struct i915_ggtt ggtt; /* VM representing the global address space */
821 struct i915_gem_mm mm;
823 /* Kernel Modesetting */
826 * dpll and cdclk state is protected by connection_mutex
827 * dpll.lock serializes intel_{prepare,enable,disable}_shared_dpll.
828 * Must be global rather than per dpll, because on some platforms plls
835 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
836 const struct intel_dpll_mgr *mgr;
844 struct list_head global_obj_list;
847 * For reading active_pipes holding any crtc lock is
848 * sufficient, for writing must hold all of them.
852 struct i915_frontbuffer_tracking fb_tracking;
854 struct intel_atomic_helper {
855 struct llist_head free_list;
856 struct work_struct free_work;
859 bool mchbar_need_disable;
861 struct intel_l3_parity l3_parity;
864 * HTI (aka HDPORT) state read during initial hw readout. Most
865 * platforms don't have HTI, so this will just stay 0. Those that do
866 * will use this later to figure out which PLLs and PHYs are unavailable
873 * Cannot be determined by PCIID. You must always read a register.
877 struct i915_power_domains power_domains;
879 struct i915_gpu_error gpu_error;
881 struct drm_i915_gem_object *vlv_pctx;
883 /* list of fbdev register on this device */
884 struct intel_fbdev *fbdev;
885 struct work_struct fbdev_suspend_work;
887 struct drm_property *broadcast_rgb_property;
888 struct drm_property *force_audio_property;
892 /* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
895 * Shadows for CHV DPLL_MD regs to keep the state
896 * checker somewhat working in the presence hardware
897 * crappiness (can't read out DPLL_MD for pipes B & C).
899 u32 chv_dpll_md[I915_MAX_PIPES];
903 bool power_domains_suspended;
904 struct i915_suspend_saved_registers regfile;
905 struct vlv_s0ix_state *vlv_s0ix_state;
908 I915_SAGV_UNKNOWN = 0,
911 I915_SAGV_NOT_CONTROLLED
914 u32 sagv_block_time_us;
918 * Raw watermark latency values:
919 * in 0.1us units for WM0,
920 * in 0.5us units for WM1+.
929 * Raw watermark memory latency values
930 * for SKL for all 8 levels
935 /* current hardware state */
937 struct ilk_wm_values hw;
938 struct vlv_wm_values vlv;
939 struct g4x_wm_values g4x;
945 * Should be held around atomic WM register writing; also
946 * protects * intel_crtc->wm.active and
947 * crtc_state->wm.need_postvbl_update.
949 struct mutex wm_mutex;
953 bool wm_lv_0_adjust_needed;
955 bool symmetric_memory;
956 enum intel_dram_type {
966 u8 num_psf_gv_points;
969 struct intel_bw_info {
970 /* for each QGV point */
971 unsigned int deratedbw[I915_NUM_QGV_POINTS];
972 /* for each PSF GV point */
973 unsigned int psf_bw[I915_NUM_PSF_GV_POINTS];
975 u8 num_psf_gv_points;
979 struct intel_global_obj bw_obj;
981 struct intel_runtime_pm runtime_pm;
983 struct i915_perf perf;
985 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
989 struct i915_gem_contexts {
990 spinlock_t lock; /* locks list */
991 struct list_head list;
995 * We replace the local file with a global mappings as the
996 * backing storage for the mmap is on the device and not
997 * on the struct file, and we do not want to prolong the
998 * lifetime of the local fd. To minimise the number of
999 * anonymous inodes we create, we use a global singleton to
1000 * share the global mapping.
1002 struct file *mmap_singleton;
1005 u8 framestart_delay;
1007 /* Window2 specifies time required to program DSB (Window2) in number of scan lines */
1012 /* For i915gm/i945gm vblank irq workaround */
1017 /* perform PHY state sanity checks? */
1018 bool chv_phy_assert[2];
1022 struct intel_audio_private audio;
1024 struct i915_pmu pmu;
1026 struct i915_hdcp_comp_master *hdcp_master;
1027 bool hdcp_comp_added;
1029 /* Mutex to protect the above hdcp component related values. */
1030 struct mutex hdcp_comp_mutex;
1032 /* The TTM device structure. */
1033 struct ttm_device bdev;
1035 I915_SELFTEST_DECLARE(struct i915_selftest_stash selftest;)
1038 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1039 * will be rejected. Instead look for a better place.
1043 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1045 return container_of(dev, struct drm_i915_private, drm);
1048 static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
1050 return dev_get_drvdata(kdev);
1053 static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
1055 return pci_get_drvdata(pdev);
1058 static inline struct intel_gt *to_gt(struct drm_i915_private *i915)
1063 /* Simple iterator over all initialised engines */
1064 #define for_each_engine(engine__, dev_priv__, id__) \
1066 (id__) < I915_NUM_ENGINES; \
1068 for_each_if ((engine__) = (dev_priv__)->engine[(id__)])
1070 /* Iterator over subset of engines selected by mask */
1071 #define for_each_engine_masked(engine__, gt__, mask__, tmp__) \
1072 for ((tmp__) = (mask__) & (gt__)->info.engine_mask; \
1074 ((engine__) = (gt__)->engine[__mask_next_bit(tmp__)]), 1 : \
1077 #define rb_to_uabi_engine(rb) \
1078 rb_entry_safe(rb, struct intel_engine_cs, uabi_node)
1080 #define for_each_uabi_engine(engine__, i915__) \
1081 for ((engine__) = rb_to_uabi_engine(rb_first(&(i915__)->uabi_engines));\
1083 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1085 #define for_each_uabi_class_engine(engine__, class__, i915__) \
1086 for ((engine__) = intel_engine_lookup_user((i915__), (class__), 0); \
1087 (engine__) && (engine__)->uabi_class == (class__); \
1088 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1090 #define I915_GTT_OFFSET_NONE ((u32)-1)
1093 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1094 * considered to be the frontbuffer for the given plane interface-wise. This
1095 * doesn't mean that the hw necessarily already scans it out, but that any
1096 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1098 * We have one bit per pipe and per scanout plane type.
1100 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
1101 #define INTEL_FRONTBUFFER(pipe, plane_id) ({ \
1102 BUILD_BUG_ON(INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES > 32); \
1103 BUILD_BUG_ON(I915_MAX_PLANES > INTEL_FRONTBUFFER_BITS_PER_PIPE); \
1104 BIT((plane_id) + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)); \
1106 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1107 BIT(INTEL_FRONTBUFFER_BITS_PER_PIPE - 1 + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1108 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1109 GENMASK(INTEL_FRONTBUFFER_BITS_PER_PIPE * ((pipe) + 1) - 1, \
1110 INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1112 #define INTEL_INFO(dev_priv) (&(dev_priv)->__info)
1113 #define RUNTIME_INFO(dev_priv) (&(dev_priv)->__runtime)
1114 #define DRIVER_CAPS(dev_priv) (&(dev_priv)->caps)
1116 #define INTEL_DEVID(dev_priv) (RUNTIME_INFO(dev_priv)->device_id)
1118 #define IP_VER(ver, rel) ((ver) << 8 | (rel))
1120 #define GRAPHICS_VER(i915) (INTEL_INFO(i915)->graphics.ver)
1121 #define GRAPHICS_VER_FULL(i915) IP_VER(INTEL_INFO(i915)->graphics.ver, \
1122 INTEL_INFO(i915)->graphics.rel)
1123 #define IS_GRAPHICS_VER(i915, from, until) \
1124 (GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
1126 #define MEDIA_VER(i915) (INTEL_INFO(i915)->media.ver)
1127 #define MEDIA_VER_FULL(i915) IP_VER(INTEL_INFO(i915)->media.arch, \
1128 INTEL_INFO(i915)->media.rel)
1129 #define IS_MEDIA_VER(i915, from, until) \
1130 (MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
1132 #define DISPLAY_VER(i915) (INTEL_INFO(i915)->display.ver)
1133 #define IS_DISPLAY_VER(i915, from, until) \
1134 (DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))
1136 #define INTEL_REVID(dev_priv) (to_pci_dev((dev_priv)->drm.dev)->revision)
1138 #define HAS_DSB(dev_priv) (INTEL_INFO(dev_priv)->display.has_dsb)
1140 #define INTEL_DISPLAY_STEP(__i915) (RUNTIME_INFO(__i915)->step.display_step)
1141 #define INTEL_GRAPHICS_STEP(__i915) (RUNTIME_INFO(__i915)->step.graphics_step)
1142 #define INTEL_MEDIA_STEP(__i915) (RUNTIME_INFO(__i915)->step.media_step)
1144 #define IS_DISPLAY_STEP(__i915, since, until) \
1145 (drm_WARN_ON(&(__i915)->drm, INTEL_DISPLAY_STEP(__i915) == STEP_NONE), \
1146 INTEL_DISPLAY_STEP(__i915) >= (since) && INTEL_DISPLAY_STEP(__i915) < (until))
1148 #define IS_GRAPHICS_STEP(__i915, since, until) \
1149 (drm_WARN_ON(&(__i915)->drm, INTEL_GRAPHICS_STEP(__i915) == STEP_NONE), \
1150 INTEL_GRAPHICS_STEP(__i915) >= (since) && INTEL_GRAPHICS_STEP(__i915) < (until))
1152 #define IS_MEDIA_STEP(__i915, since, until) \
1153 (drm_WARN_ON(&(__i915)->drm, INTEL_MEDIA_STEP(__i915) == STEP_NONE), \
1154 INTEL_MEDIA_STEP(__i915) >= (since) && INTEL_MEDIA_STEP(__i915) < (until))
1156 static __always_inline unsigned int
1157 __platform_mask_index(const struct intel_runtime_info *info,
1158 enum intel_platform p)
1160 const unsigned int pbits =
1161 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1163 /* Expand the platform_mask array if this fails. */
1164 BUILD_BUG_ON(INTEL_MAX_PLATFORMS >
1165 pbits * ARRAY_SIZE(info->platform_mask));
1170 static __always_inline unsigned int
1171 __platform_mask_bit(const struct intel_runtime_info *info,
1172 enum intel_platform p)
1174 const unsigned int pbits =
1175 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1177 return p % pbits + INTEL_SUBPLATFORM_BITS;
1181 intel_subplatform(const struct intel_runtime_info *info, enum intel_platform p)
1183 const unsigned int pi = __platform_mask_index(info, p);
1185 return info->platform_mask[pi] & INTEL_SUBPLATFORM_MASK;
1188 static __always_inline bool
1189 IS_PLATFORM(const struct drm_i915_private *i915, enum intel_platform p)
1191 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1192 const unsigned int pi = __platform_mask_index(info, p);
1193 const unsigned int pb = __platform_mask_bit(info, p);
1195 BUILD_BUG_ON(!__builtin_constant_p(p));
1197 return info->platform_mask[pi] & BIT(pb);
1200 static __always_inline bool
1201 IS_SUBPLATFORM(const struct drm_i915_private *i915,
1202 enum intel_platform p, unsigned int s)
1204 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1205 const unsigned int pi = __platform_mask_index(info, p);
1206 const unsigned int pb = __platform_mask_bit(info, p);
1207 const unsigned int msb = BITS_PER_TYPE(info->platform_mask[0]) - 1;
1208 const u32 mask = info->platform_mask[pi];
1210 BUILD_BUG_ON(!__builtin_constant_p(p));
1211 BUILD_BUG_ON(!__builtin_constant_p(s));
1212 BUILD_BUG_ON((s) >= INTEL_SUBPLATFORM_BITS);
1214 /* Shift and test on the MSB position so sign flag can be used. */
1215 return ((mask << (msb - pb)) & (mask << (msb - s))) & BIT(msb);
1218 #define IS_MOBILE(dev_priv) (INTEL_INFO(dev_priv)->is_mobile)
1219 #define IS_DGFX(dev_priv) (INTEL_INFO(dev_priv)->is_dgfx)
1221 #define IS_I830(dev_priv) IS_PLATFORM(dev_priv, INTEL_I830)
1222 #define IS_I845G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I845G)
1223 #define IS_I85X(dev_priv) IS_PLATFORM(dev_priv, INTEL_I85X)
1224 #define IS_I865G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I865G)
1225 #define IS_I915G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915G)
1226 #define IS_I915GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915GM)
1227 #define IS_I945G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945G)
1228 #define IS_I945GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945GM)
1229 #define IS_I965G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965G)
1230 #define IS_I965GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965GM)
1231 #define IS_G45(dev_priv) IS_PLATFORM(dev_priv, INTEL_G45)
1232 #define IS_GM45(dev_priv) IS_PLATFORM(dev_priv, INTEL_GM45)
1233 #define IS_G4X(dev_priv) (IS_G45(dev_priv) || IS_GM45(dev_priv))
1234 #define IS_PINEVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_PINEVIEW)
1235 #define IS_G33(dev_priv) IS_PLATFORM(dev_priv, INTEL_G33)
1236 #define IS_IRONLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IRONLAKE)
1237 #define IS_IRONLAKE_M(dev_priv) \
1238 (IS_PLATFORM(dev_priv, INTEL_IRONLAKE) && IS_MOBILE(dev_priv))
1239 #define IS_SANDYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SANDYBRIDGE)
1240 #define IS_IVYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IVYBRIDGE)
1241 #define IS_IVB_GT1(dev_priv) (IS_IVYBRIDGE(dev_priv) && \
1242 INTEL_INFO(dev_priv)->gt == 1)
1243 #define IS_VALLEYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_VALLEYVIEW)
1244 #define IS_CHERRYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_CHERRYVIEW)
1245 #define IS_HASWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_HASWELL)
1246 #define IS_BROADWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROADWELL)
1247 #define IS_SKYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SKYLAKE)
1248 #define IS_BROXTON(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROXTON)
1249 #define IS_KABYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_KABYLAKE)
1250 #define IS_GEMINILAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_GEMINILAKE)
1251 #define IS_COFFEELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COFFEELAKE)
1252 #define IS_COMETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COMETLAKE)
1253 #define IS_ICELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ICELAKE)
1254 #define IS_JSL_EHL(dev_priv) (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE) || \
1255 IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
1256 #define IS_TIGERLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_TIGERLAKE)
1257 #define IS_ROCKETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)
1258 #define IS_DG1(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG1)
1259 #define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S)
1260 #define IS_ALDERLAKE_P(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_P)
1261 #define IS_XEHPSDV(dev_priv) IS_PLATFORM(dev_priv, INTEL_XEHPSDV)
1262 #define IS_DG2(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG2)
1263 #define IS_DG2_G10(dev_priv) \
1264 IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G10)
1265 #define IS_DG2_G11(dev_priv) \
1266 IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G11)
1267 #define IS_ADLS_RPLS(dev_priv) \
1268 IS_SUBPLATFORM(dev_priv, INTEL_ALDERLAKE_S, INTEL_SUBPLATFORM_RPL_S)
1269 #define IS_ADLP_N(dev_priv) \
1270 IS_SUBPLATFORM(dev_priv, INTEL_ALDERLAKE_P, INTEL_SUBPLATFORM_N)
1271 #define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \
1272 (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00)
1273 #define IS_BDW_ULT(dev_priv) \
1274 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULT)
1275 #define IS_BDW_ULX(dev_priv) \
1276 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULX)
1277 #define IS_BDW_GT3(dev_priv) (IS_BROADWELL(dev_priv) && \
1278 INTEL_INFO(dev_priv)->gt == 3)
1279 #define IS_HSW_ULT(dev_priv) \
1280 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULT)
1281 #define IS_HSW_GT3(dev_priv) (IS_HASWELL(dev_priv) && \
1282 INTEL_INFO(dev_priv)->gt == 3)
1283 #define IS_HSW_GT1(dev_priv) (IS_HASWELL(dev_priv) && \
1284 INTEL_INFO(dev_priv)->gt == 1)
1285 /* ULX machines are also considered ULT. */
1286 #define IS_HSW_ULX(dev_priv) \
1287 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULX)
1288 #define IS_SKL_ULT(dev_priv) \
1289 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULT)
1290 #define IS_SKL_ULX(dev_priv) \
1291 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULX)
1292 #define IS_KBL_ULT(dev_priv) \
1293 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULT)
1294 #define IS_KBL_ULX(dev_priv) \
1295 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULX)
1296 #define IS_SKL_GT2(dev_priv) (IS_SKYLAKE(dev_priv) && \
1297 INTEL_INFO(dev_priv)->gt == 2)
1298 #define IS_SKL_GT3(dev_priv) (IS_SKYLAKE(dev_priv) && \
1299 INTEL_INFO(dev_priv)->gt == 3)
1300 #define IS_SKL_GT4(dev_priv) (IS_SKYLAKE(dev_priv) && \
1301 INTEL_INFO(dev_priv)->gt == 4)
1302 #define IS_KBL_GT2(dev_priv) (IS_KABYLAKE(dev_priv) && \
1303 INTEL_INFO(dev_priv)->gt == 2)
1304 #define IS_KBL_GT3(dev_priv) (IS_KABYLAKE(dev_priv) && \
1305 INTEL_INFO(dev_priv)->gt == 3)
1306 #define IS_CFL_ULT(dev_priv) \
1307 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULT)
1308 #define IS_CFL_ULX(dev_priv) \
1309 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULX)
1310 #define IS_CFL_GT2(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1311 INTEL_INFO(dev_priv)->gt == 2)
1312 #define IS_CFL_GT3(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1313 INTEL_INFO(dev_priv)->gt == 3)
1315 #define IS_CML_ULT(dev_priv) \
1316 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULT)
1317 #define IS_CML_ULX(dev_priv) \
1318 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULX)
1319 #define IS_CML_GT2(dev_priv) (IS_COMETLAKE(dev_priv) && \
1320 INTEL_INFO(dev_priv)->gt == 2)
1322 #define IS_ICL_WITH_PORT_F(dev_priv) \
1323 IS_SUBPLATFORM(dev_priv, INTEL_ICELAKE, INTEL_SUBPLATFORM_PORTF)
1325 #define IS_TGL_U(dev_priv) \
1326 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULT)
1328 #define IS_TGL_Y(dev_priv) \
1329 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULX)
1331 #define IS_SKL_GRAPHICS_STEP(p, since, until) (IS_SKYLAKE(p) && IS_GRAPHICS_STEP(p, since, until))
1333 #define IS_KBL_GRAPHICS_STEP(dev_priv, since, until) \
1334 (IS_KABYLAKE(dev_priv) && IS_GRAPHICS_STEP(dev_priv, since, until))
1335 #define IS_KBL_DISPLAY_STEP(dev_priv, since, until) \
1336 (IS_KABYLAKE(dev_priv) && IS_DISPLAY_STEP(dev_priv, since, until))
1338 #define IS_JSL_EHL_GRAPHICS_STEP(p, since, until) \
1339 (IS_JSL_EHL(p) && IS_GRAPHICS_STEP(p, since, until))
1340 #define IS_JSL_EHL_DISPLAY_STEP(p, since, until) \
1341 (IS_JSL_EHL(p) && IS_DISPLAY_STEP(p, since, until))
1343 #define IS_TGL_DISPLAY_STEP(__i915, since, until) \
1344 (IS_TIGERLAKE(__i915) && \
1345 IS_DISPLAY_STEP(__i915, since, until))
1347 #define IS_TGL_UY_GRAPHICS_STEP(__i915, since, until) \
1348 ((IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1349 IS_GRAPHICS_STEP(__i915, since, until))
1351 #define IS_TGL_GRAPHICS_STEP(__i915, since, until) \
1352 (IS_TIGERLAKE(__i915) && !(IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1353 IS_GRAPHICS_STEP(__i915, since, until))
1355 #define IS_RKL_DISPLAY_STEP(p, since, until) \
1356 (IS_ROCKETLAKE(p) && IS_DISPLAY_STEP(p, since, until))
1358 #define IS_DG1_GRAPHICS_STEP(p, since, until) \
1359 (IS_DG1(p) && IS_GRAPHICS_STEP(p, since, until))
1360 #define IS_DG1_DISPLAY_STEP(p, since, until) \
1361 (IS_DG1(p) && IS_DISPLAY_STEP(p, since, until))
1363 #define IS_ADLS_DISPLAY_STEP(__i915, since, until) \
1364 (IS_ALDERLAKE_S(__i915) && \
1365 IS_DISPLAY_STEP(__i915, since, until))
1367 #define IS_ADLS_GRAPHICS_STEP(__i915, since, until) \
1368 (IS_ALDERLAKE_S(__i915) && \
1369 IS_GRAPHICS_STEP(__i915, since, until))
1371 #define IS_ADLP_DISPLAY_STEP(__i915, since, until) \
1372 (IS_ALDERLAKE_P(__i915) && \
1373 IS_DISPLAY_STEP(__i915, since, until))
1375 #define IS_ADLP_GRAPHICS_STEP(__i915, since, until) \
1376 (IS_ALDERLAKE_P(__i915) && \
1377 IS_GRAPHICS_STEP(__i915, since, until))
1379 #define IS_XEHPSDV_GRAPHICS_STEP(__i915, since, until) \
1380 (IS_XEHPSDV(__i915) && IS_GRAPHICS_STEP(__i915, since, until))
1383 * DG2 hardware steppings are a bit unusual. The hardware design was forked
1384 * to create two variants (G10 and G11) which have distinct workaround sets.
1385 * The G11 fork of the DG2 design resets the GT stepping back to "A0" for its
1386 * first iteration, even though it's more similar to a G10 B0 stepping in terms
1387 * of functionality and workarounds. However the display stepping does not
1388 * reset in the same manner --- a specific stepping like "B0" has a consistent
1389 * meaning regardless of whether it belongs to a G10 or G11 DG2.
1391 * TLDR: All GT workarounds and stepping-specific logic must be applied in
1392 * relation to a specific subplatform (G10 or G11), whereas display workarounds
1393 * and stepping-specific logic will be applied with a general DG2-wide stepping
1396 #define IS_DG2_GRAPHICS_STEP(__i915, variant, since, until) \
1397 (IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
1398 IS_GRAPHICS_STEP(__i915, since, until))
1400 #define IS_DG2_DISPLAY_STEP(__i915, since, until) \
1401 (IS_DG2(__i915) && \
1402 IS_DISPLAY_STEP(__i915, since, until))
1404 #define IS_LP(dev_priv) (INTEL_INFO(dev_priv)->is_lp)
1405 #define IS_GEN9_LP(dev_priv) (GRAPHICS_VER(dev_priv) == 9 && IS_LP(dev_priv))
1406 #define IS_GEN9_BC(dev_priv) (GRAPHICS_VER(dev_priv) == 9 && !IS_LP(dev_priv))
1408 #define __HAS_ENGINE(engine_mask, id) ((engine_mask) & BIT(id))
1409 #define HAS_ENGINE(gt, id) __HAS_ENGINE((gt)->info.engine_mask, id)
1411 #define ENGINE_INSTANCES_MASK(gt, first, count) ({ \
1412 unsigned int first__ = (first); \
1413 unsigned int count__ = (count); \
1414 ((gt)->info.engine_mask & \
1415 GENMASK(first__ + count__ - 1, first__)) >> first__; \
1417 #define VDBOX_MASK(gt) \
1418 ENGINE_INSTANCES_MASK(gt, VCS0, I915_MAX_VCS)
1419 #define VEBOX_MASK(gt) \
1420 ENGINE_INSTANCES_MASK(gt, VECS0, I915_MAX_VECS)
1423 * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
1424 * All later gens can run the final buffer from the ppgtt
1426 #define CMDPARSER_USES_GGTT(dev_priv) (GRAPHICS_VER(dev_priv) == 7)
1428 #define HAS_LLC(dev_priv) (INTEL_INFO(dev_priv)->has_llc)
1429 #define HAS_SNOOP(dev_priv) (INTEL_INFO(dev_priv)->has_snoop)
1430 #define HAS_EDRAM(dev_priv) ((dev_priv)->edram_size_mb)
1431 #define HAS_SECURE_BATCHES(dev_priv) (GRAPHICS_VER(dev_priv) < 6)
1432 #define HAS_WT(dev_priv) HAS_EDRAM(dev_priv)
1434 #define HWS_NEEDS_PHYSICAL(dev_priv) (INTEL_INFO(dev_priv)->hws_needs_physical)
1436 #define HAS_LOGICAL_RING_CONTEXTS(dev_priv) \
1437 (INTEL_INFO(dev_priv)->has_logical_ring_contexts)
1438 #define HAS_LOGICAL_RING_ELSQ(dev_priv) \
1439 (INTEL_INFO(dev_priv)->has_logical_ring_elsq)
1441 #define HAS_EXECLISTS(dev_priv) HAS_LOGICAL_RING_CONTEXTS(dev_priv)
1443 #define INTEL_PPGTT(dev_priv) (INTEL_INFO(dev_priv)->ppgtt_type)
1444 #define HAS_PPGTT(dev_priv) \
1445 (INTEL_PPGTT(dev_priv) != INTEL_PPGTT_NONE)
1446 #define HAS_FULL_PPGTT(dev_priv) \
1447 (INTEL_PPGTT(dev_priv) >= INTEL_PPGTT_FULL)
1449 #define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
1450 GEM_BUG_ON((sizes) == 0); \
1451 ((sizes) & ~INTEL_INFO(dev_priv)->page_sizes) == 0; \
1454 #define HAS_OVERLAY(dev_priv) (INTEL_INFO(dev_priv)->display.has_overlay)
1455 #define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
1456 (INTEL_INFO(dev_priv)->display.overlay_needs_physical)
1458 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1459 #define HAS_BROKEN_CS_TLB(dev_priv) (IS_I830(dev_priv) || IS_I845G(dev_priv))
1461 #define NEEDS_RC6_CTX_CORRUPTION_WA(dev_priv) \
1462 (IS_BROADWELL(dev_priv) || GRAPHICS_VER(dev_priv) == 9)
1464 /* WaRsDisableCoarsePowerGating:skl,cnl */
1465 #define NEEDS_WaRsDisableCoarsePowerGating(dev_priv) \
1466 (IS_SKL_GT3(dev_priv) || IS_SKL_GT4(dev_priv))
1468 #define HAS_GMBUS_IRQ(dev_priv) (GRAPHICS_VER(dev_priv) >= 4)
1469 #define HAS_GMBUS_BURST_READ(dev_priv) (GRAPHICS_VER(dev_priv) >= 11 || \
1470 IS_GEMINILAKE(dev_priv) || \
1471 IS_KABYLAKE(dev_priv))
1473 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1474 * rows, which changed the alignment requirements and fence programming.
1476 #define HAS_128_BYTE_Y_TILING(dev_priv) (GRAPHICS_VER(dev_priv) != 2 && \
1477 !(IS_I915G(dev_priv) || IS_I915GM(dev_priv)))
1478 #define SUPPORTS_TV(dev_priv) (INTEL_INFO(dev_priv)->display.supports_tv)
1479 #define I915_HAS_HOTPLUG(dev_priv) (INTEL_INFO(dev_priv)->display.has_hotplug)
1481 #define HAS_FW_BLC(dev_priv) (GRAPHICS_VER(dev_priv) > 2)
1482 #define HAS_FBC(dev_priv) (INTEL_INFO(dev_priv)->display.fbc_mask != 0)
1483 #define HAS_CUR_FBC(dev_priv) (!HAS_GMCH(dev_priv) && GRAPHICS_VER(dev_priv) >= 7)
1485 #define HAS_IPS(dev_priv) (IS_HSW_ULT(dev_priv) || IS_BROADWELL(dev_priv))
1487 #define HAS_DP_MST(dev_priv) (INTEL_INFO(dev_priv)->display.has_dp_mst)
1488 #define HAS_DP20(dev_priv) (IS_DG2(dev_priv))
1490 #define HAS_CDCLK_CRAWL(dev_priv) (INTEL_INFO(dev_priv)->display.has_cdclk_crawl)
1491 #define HAS_DDI(dev_priv) (INTEL_INFO(dev_priv)->display.has_ddi)
1492 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
1493 #define HAS_PSR(dev_priv) (INTEL_INFO(dev_priv)->display.has_psr)
1494 #define HAS_PSR_HW_TRACKING(dev_priv) \
1495 (INTEL_INFO(dev_priv)->display.has_psr_hw_tracking)
1496 #define HAS_PSR2_SEL_FETCH(dev_priv) (GRAPHICS_VER(dev_priv) >= 12)
1497 #define HAS_TRANSCODER(dev_priv, trans) ((INTEL_INFO(dev_priv)->display.cpu_transcoder_mask & BIT(trans)) != 0)
1499 #define HAS_RC6(dev_priv) (INTEL_INFO(dev_priv)->has_rc6)
1500 #define HAS_RC6p(dev_priv) (INTEL_INFO(dev_priv)->has_rc6p)
1501 #define HAS_RC6pp(dev_priv) (false) /* HW was never validated */
1503 #define HAS_RPS(dev_priv) (INTEL_INFO(dev_priv)->has_rps)
1505 #define HAS_DMC(dev_priv) (INTEL_INFO(dev_priv)->display.has_dmc)
1507 #define HAS_MSO(i915) (GRAPHICS_VER(i915) >= 12)
1509 #define HAS_RUNTIME_PM(dev_priv) (INTEL_INFO(dev_priv)->has_runtime_pm)
1510 #define HAS_64BIT_RELOC(dev_priv) (INTEL_INFO(dev_priv)->has_64bit_reloc)
1512 #define HAS_MSLICES(dev_priv) \
1513 (INTEL_INFO(dev_priv)->has_mslices)
1516 * Set this flag, when platform requires 64K GTT page sizes or larger for
1517 * device local memory access. Also this flag implies that we require or
1518 * at least support the compact PT layout for the ppGTT when using the 64K
1521 #define HAS_64K_PAGES(dev_priv) (INTEL_INFO(dev_priv)->has_64k_pages)
1523 #define HAS_IPC(dev_priv) (INTEL_INFO(dev_priv)->display.has_ipc)
1525 #define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i))
1526 #define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM)
1528 #define HAS_GT_UC(dev_priv) (INTEL_INFO(dev_priv)->has_gt_uc)
1530 #define HAS_POOLED_EU(dev_priv) (INTEL_INFO(dev_priv)->has_pooled_eu)
1532 #define HAS_GLOBAL_MOCS_REGISTERS(dev_priv) (INTEL_INFO(dev_priv)->has_global_mocs)
1534 #define HAS_PXP(dev_priv) ((IS_ENABLED(CONFIG_DRM_I915_PXP) && \
1535 INTEL_INFO(dev_priv)->has_pxp) && \
1536 VDBOX_MASK(to_gt(dev_priv)))
1538 #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)
1540 #define HAS_LSPCON(dev_priv) (IS_GRAPHICS_VER(dev_priv, 9, 10))
1542 /* DPF == dynamic parity feature */
1543 #define HAS_L3_DPF(dev_priv) (INTEL_INFO(dev_priv)->has_l3_dpf)
1544 #define NUM_L3_SLICES(dev_priv) (IS_HSW_GT3(dev_priv) ? \
1545 2 : HAS_L3_DPF(dev_priv))
1547 #define GT_FREQUENCY_MULTIPLIER 50
1548 #define GEN9_FREQ_SCALER 3
1550 #define INTEL_NUM_PIPES(dev_priv) (hweight8(INTEL_INFO(dev_priv)->display.pipe_mask))
1552 #define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->display.pipe_mask != 0)
1554 #define HAS_VRR(i915) (GRAPHICS_VER(i915) >= 11)
1556 #define HAS_ASYNC_FLIPS(i915) (DISPLAY_VER(i915) >= 5)
1558 /* Only valid when HAS_DISPLAY() is true */
1559 #define INTEL_DISPLAY_ENABLED(dev_priv) \
1560 (drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
1562 static inline bool run_as_guest(void)
1564 return !hypervisor_is_type(X86_HYPER_NATIVE);
1567 #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \
1568 IS_ALDERLAKE_S(dev_priv))
1570 static inline bool intel_vtd_active(struct drm_i915_private *i915)
1572 if (device_iommu_mapped(i915->drm.dev))
1575 /* Running as a guest, we assume the host is enforcing VT'd */
1576 return run_as_guest();
1580 i915_print_iommu_status(struct drm_i915_private *i915, struct drm_printer *p);
1582 static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
1584 return GRAPHICS_VER(dev_priv) >= 6 && intel_vtd_active(dev_priv);
1588 intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915)
1590 return IS_BROXTON(i915) && intel_vtd_active(i915);
1594 intel_vm_no_concurrent_access_wa(struct drm_i915_private *i915)
1596 return IS_CHERRYVIEW(i915) || intel_ggtt_update_needs_vtd_wa(i915);
1600 void i915_gem_init_early(struct drm_i915_private *dev_priv);
1601 void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);
1603 static inline void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
1606 * A single pass should suffice to release all the freed objects (along
1607 * most call paths) , but be a little more paranoid in that freeing
1608 * the objects does take a little amount of time, during which the rcu
1609 * callbacks could have added new objects into the freed list, and
1610 * armed the work again.
1612 while (atomic_read(&i915->mm.free_count)) {
1613 flush_delayed_work(&i915->mm.free_work);
1614 flush_delayed_work(&i915->bdev.wq);
1619 static inline void i915_gem_drain_workqueue(struct drm_i915_private *i915)
1622 * Similar to objects above (see i915_gem_drain_freed-objects), in
1623 * general we have workers that are armed by RCU and then rearm
1624 * themselves in their callbacks. To be paranoid, we need to
1625 * drain the workqueue a second time after waiting for the RCU
1626 * grace period so that we catch work queued via RCU from the first
1627 * pass. As neither drain_workqueue() nor flush_workqueue() report
1628 * a result, we make an assumption that we only don't require more
1629 * than 3 passes to catch all _recursive_ RCU delayed work.
1634 flush_workqueue(i915->wq);
1636 i915_gem_drain_freed_objects(i915);
1638 drain_workqueue(i915->wq);
1641 struct i915_vma * __must_check
1642 i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
1643 struct i915_gem_ww_ctx *ww,
1644 const struct i915_ggtt_view *view,
1645 u64 size, u64 alignment, u64 flags);
1647 struct i915_vma * __must_check
1648 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
1649 const struct i915_ggtt_view *view,
1650 u64 size, u64 alignment, u64 flags);
1652 int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
1653 unsigned long flags);
1654 #define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
1655 #define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
1656 #define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
1657 #define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)
1659 void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);
1661 int i915_gem_dumb_create(struct drm_file *file_priv,
1662 struct drm_device *dev,
1663 struct drm_mode_create_dumb *args);
1665 int __must_check i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno);
1667 static inline u32 i915_reset_count(struct i915_gpu_error *error)
1669 return atomic_read(&error->reset_count);
1672 static inline u32 i915_reset_engine_count(struct i915_gpu_error *error,
1673 const struct intel_engine_cs *engine)
1675 return atomic_read(&error->reset_engine_count[engine->uabi_class]);
1678 int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
1679 void i915_gem_driver_register(struct drm_i915_private *i915);
1680 void i915_gem_driver_unregister(struct drm_i915_private *i915);
1681 void i915_gem_driver_remove(struct drm_i915_private *dev_priv);
1682 void i915_gem_driver_release(struct drm_i915_private *dev_priv);
1683 void i915_gem_suspend(struct drm_i915_private *dev_priv);
1684 void i915_gem_suspend_late(struct drm_i915_private *dev_priv);
1685 void i915_gem_resume(struct drm_i915_private *dev_priv);
1687 int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
1689 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1690 enum i915_cache_level cache_level);
1692 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1693 struct dma_buf *dma_buf);
1695 struct dma_buf *i915_gem_prime_export(struct drm_gem_object *gem_obj, int flags);
1697 static inline struct i915_address_space *
1698 i915_gem_vm_lookup(struct drm_i915_file_private *file_priv, u32 id)
1700 struct i915_address_space *vm;
1702 xa_lock(&file_priv->vm_xa);
1703 vm = xa_load(&file_priv->vm_xa, id);
1706 xa_unlock(&file_priv->vm_xa);
1711 /* i915_gem_internal.c */
1712 struct drm_i915_gem_object *
1713 i915_gem_object_create_internal(struct drm_i915_private *dev_priv,
1715 struct drm_i915_gem_object *
1716 __i915_gem_object_create_internal(struct drm_i915_private *dev_priv,
1717 const struct drm_i915_gem_object_ops *ops,
1720 /* i915_gem_tiling.c */
1721 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1723 struct drm_i915_private *i915 = to_i915(obj->base.dev);
1725 return i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1726 i915_gem_object_is_tiled(obj);
1729 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
1731 /* intel_device_info.c */
1732 static inline struct intel_device_info *
1733 mkwrite_device_info(struct drm_i915_private *dev_priv)
1735 return (struct intel_device_info *)INTEL_INFO(dev_priv);
1738 static inline int intel_hws_csb_write_index(struct drm_i915_private *i915)
1740 if (GRAPHICS_VER(i915) >= 11)
1741 return ICL_HWS_CSB_WRITE_INDEX;
1743 return I915_HWS_CSB_WRITE_INDEX;
1746 static inline enum i915_map_type
1747 i915_coherent_map_type(struct drm_i915_private *i915,
1748 struct drm_i915_gem_object *obj, bool always_coherent)
1750 if (i915_gem_object_is_lmem(obj))
1752 if (HAS_LLC(i915) || always_coherent)