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"
64 #include "i915_utils.h"
66 #include "display/intel_bios.h"
67 #include "display/intel_cdclk.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_fbc.h"
74 #include "display/intel_frontbuffer.h"
75 #include "display/intel_global_state.h"
76 #include "display/intel_gmbus.h"
77 #include "display/intel_opregion.h"
79 #include "gem/i915_gem_context_types.h"
80 #include "gem/i915_gem_shrinker.h"
81 #include "gem/i915_gem_stolen.h"
82 #include "gem/i915_gem_lmem.h"
84 #include "gt/intel_engine.h"
85 #include "gt/intel_gt_types.h"
86 #include "gt/intel_region_lmem.h"
87 #include "gt/intel_workarounds.h"
88 #include "gt/uc/intel_uc.h"
90 #include "intel_device_info.h"
91 #include "intel_memory_region.h"
92 #include "intel_pch.h"
93 #include "intel_pm_types.h"
94 #include "intel_runtime_pm.h"
95 #include "intel_step.h"
96 #include "intel_uncore.h"
97 #include "intel_wakeref.h"
98 #include "intel_wopcm.h"
100 #include "i915_gem.h"
101 #include "i915_gem_gtt.h"
102 #include "i915_gpu_error.h"
103 #include "i915_perf_types.h"
104 #include "i915_request.h"
105 #include "i915_scheduler.h"
106 #include "gt/intel_timeline.h"
107 #include "i915_vma.h"
110 struct drm_i915_clock_gating_funcs;
111 struct drm_i915_gem_object;
112 struct drm_i915_private;
113 struct intel_atomic_state;
114 struct intel_audio_funcs;
115 struct intel_cdclk_config;
116 struct intel_cdclk_funcs;
117 struct intel_cdclk_state;
118 struct intel_cdclk_vals;
119 struct intel_color_funcs;
120 struct intel_connector;
123 struct intel_dpll_funcs;
124 struct intel_encoder;
126 struct intel_fdi_funcs;
127 struct intel_hotplug_funcs;
128 struct intel_initial_plane_config;
130 struct intel_overlay;
131 struct intel_overlay_error_state;
132 struct vlv_s0ix_state;
134 /* Threshold == 5 for long IRQs, 50 for short */
135 #define HPD_STORM_DEFAULT_THRESHOLD 50
137 struct i915_hotplug {
138 struct delayed_work hotplug_work;
140 const u32 *hpd, *pch_hpd;
143 unsigned long last_jiffies;
148 HPD_MARK_DISABLED = 2
150 } stats[HPD_NUM_PINS];
153 struct delayed_work reenable_work;
157 struct work_struct dig_port_work;
159 struct work_struct poll_init_work;
162 unsigned int hpd_storm_threshold;
163 /* Whether or not to count short HPD IRQs in HPD storms */
164 u8 hpd_short_storm_enabled;
167 * if we get a HPD irq from DP and a HPD irq from non-DP
168 * the non-DP HPD could block the workqueue on a mode config
169 * mutex getting, that userspace may have taken. However
170 * userspace is waiting on the DP workqueue to run which is
171 * blocked behind the non-DP one.
173 struct workqueue_struct *dp_wq;
176 #define I915_GEM_GPU_DOMAINS \
177 (I915_GEM_DOMAIN_RENDER | \
178 I915_GEM_DOMAIN_SAMPLER | \
179 I915_GEM_DOMAIN_COMMAND | \
180 I915_GEM_DOMAIN_INSTRUCTION | \
181 I915_GEM_DOMAIN_VERTEX)
183 struct drm_i915_file_private {
184 struct drm_i915_private *dev_priv;
187 struct drm_file *file;
191 /** @proto_context_lock: Guards all struct i915_gem_proto_context
194 * This not only guards @proto_context_xa, but is always held
195 * whenever we manipulate any struct i915_gem_proto_context,
196 * including finalizing it on first actual use of the GEM context.
198 * See i915_gem_proto_context.
200 struct mutex proto_context_lock;
202 /** @proto_context_xa: xarray of struct i915_gem_proto_context
204 * Historically, the context uAPI allowed for two methods of
205 * setting context parameters: SET_CONTEXT_PARAM and
206 * CONTEXT_CREATE_EXT_SETPARAM. The former is allowed to be called
207 * at any time while the later happens as part of
208 * GEM_CONTEXT_CREATE. Everything settable via one was settable
209 * via the other. While some params are fairly simple and setting
210 * them on a live context is harmless such as the context priority,
211 * others are far trickier such as the VM or the set of engines.
212 * In order to swap out the VM, for instance, we have to delay
213 * until all current in-flight work is complete, swap in the new
214 * VM, and then continue. This leads to a plethora of potential
215 * race conditions we'd really rather avoid.
217 * We have since disallowed setting these more complex parameters
218 * on active contexts. This works by delaying the creation of the
219 * actual context until after the client is done configuring it
220 * with SET_CONTEXT_PARAM. From the perspective of the client, it
221 * has the same u32 context ID the whole time. From the
222 * perspective of i915, however, it's a struct i915_gem_proto_context
223 * right up until the point where we attempt to do something which
224 * the proto-context can't handle. Then the struct i915_gem_context
227 * This is accomplished via a little xarray dance. When
228 * GEM_CONTEXT_CREATE is called, we create a struct
229 * i915_gem_proto_context, reserve a slot in @context_xa but leave
230 * it NULL, and place the proto-context in the corresponding slot
231 * in @proto_context_xa. Then, in i915_gem_context_lookup(), we
232 * first check @context_xa. If it's there, we return the struct
233 * i915_gem_context and we're done. If it's not, we look in
234 * @proto_context_xa and, if we find it there, we create the actual
235 * context and kill the proto-context.
237 * In order for this dance to work properly, everything which ever
238 * touches a struct i915_gem_proto_context is guarded by
239 * @proto_context_lock, including context creation. Yes, this
240 * means context creation now takes a giant global lock but it
241 * can't really be helped and that should never be on any driver's
244 struct xarray proto_context_xa;
246 /** @context_xa: xarray of fully created i915_gem_context
248 * Write access to this xarray is guarded by @proto_context_lock.
249 * Otherwise, writers may race with finalize_create_context_locked().
251 * See @proto_context_xa.
253 struct xarray context_xa;
256 unsigned int bsd_engine;
259 * Every context ban increments per client ban score. Also
260 * hangs in short succession increments ban score. If ban threshold
261 * is reached, client is considered banned and submitting more work
262 * will fail. This is a stop gap measure to limit the badly behaving
263 * clients access to gpu. Note that unbannable contexts never increment
264 * the client ban score.
266 #define I915_CLIENT_SCORE_HANG_FAST 1
267 #define I915_CLIENT_FAST_HANG_JIFFIES (60 * HZ)
268 #define I915_CLIENT_SCORE_CONTEXT_BAN 3
269 #define I915_CLIENT_SCORE_BANNED 9
270 /** ban_score: Accumulated score of all ctx bans and fast hangs. */
272 unsigned long hang_timestamp;
275 struct sdvo_device_mapping {
284 /* functions used for watermark calcs for display. */
285 struct drm_i915_wm_disp_funcs {
286 /* update_wm is for legacy wm management */
287 void (*update_wm)(struct drm_i915_private *dev_priv);
288 int (*compute_pipe_wm)(struct intel_atomic_state *state,
289 struct intel_crtc *crtc);
290 int (*compute_intermediate_wm)(struct intel_atomic_state *state,
291 struct intel_crtc *crtc);
292 void (*initial_watermarks)(struct intel_atomic_state *state,
293 struct intel_crtc *crtc);
294 void (*atomic_update_watermarks)(struct intel_atomic_state *state,
295 struct intel_crtc *crtc);
296 void (*optimize_watermarks)(struct intel_atomic_state *state,
297 struct intel_crtc *crtc);
298 int (*compute_global_watermarks)(struct intel_atomic_state *state);
301 struct drm_i915_display_funcs {
302 /* Returns the active state of the crtc, and if the crtc is active,
303 * fills out the pipe-config with the hw state. */
304 bool (*get_pipe_config)(struct intel_crtc *,
305 struct intel_crtc_state *);
306 void (*get_initial_plane_config)(struct intel_crtc *,
307 struct intel_initial_plane_config *);
308 void (*crtc_enable)(struct intel_atomic_state *state,
309 struct intel_crtc *crtc);
310 void (*crtc_disable)(struct intel_atomic_state *state,
311 struct intel_crtc *crtc);
312 void (*commit_modeset_enables)(struct intel_atomic_state *state);
315 #define I915_COLOR_UNEVICTABLE (-1) /* a non-vma sharing the address space */
318 * HIGH_RR is the highest eDP panel refresh rate read from EDID
319 * LOW_RR is the lowest eDP panel refresh rate found from EDID
320 * parsing for same resolution.
322 enum drrs_refresh_rate_type {
325 DRRS_MAX_RR, /* RR count */
328 enum drrs_support_type {
329 DRRS_NOT_SUPPORTED = 0,
330 STATIC_DRRS_SUPPORT = 1,
331 SEAMLESS_DRRS_SUPPORT = 2
336 struct delayed_work work;
338 unsigned busy_frontbuffer_bits;
339 enum drrs_refresh_rate_type refresh_rate_type;
340 enum drrs_support_type type;
343 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
344 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
345 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
346 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
347 #define QUIRK_INCREASE_T12_DELAY (1<<6)
348 #define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
349 #define QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK (1<<8)
352 struct i2c_adapter adapter;
353 #define GMBUS_FORCE_BIT_RETRY (1U << 31)
357 struct i2c_algo_bit_data bit_algo;
358 struct drm_i915_private *dev_priv;
361 struct i915_suspend_saved_registers {
369 #define MAX_L3_SLICES 2
370 struct intel_l3_parity {
371 u32 *remap_info[MAX_L3_SLICES];
372 struct work_struct error_work;
378 * Shortcut for the stolen region. This points to either
379 * INTEL_REGION_STOLEN_SMEM for integrated platforms, or
380 * INTEL_REGION_STOLEN_LMEM for discrete, or NULL if the device doesn't
383 struct intel_memory_region *stolen_region;
384 /** Memory allocator for GTT stolen memory */
385 struct drm_mm stolen;
386 /** Protects the usage of the GTT stolen memory allocator. This is
387 * always the inner lock when overlapping with struct_mutex. */
388 struct mutex stolen_lock;
390 /* Protects bound_list/unbound_list and #drm_i915_gem_object.mm.link */
394 * List of objects which are purgeable.
396 struct list_head purge_list;
399 * List of objects which have allocated pages and are shrinkable.
401 struct list_head shrink_list;
404 * List of objects which are pending destruction.
406 struct llist_head free_list;
407 struct delayed_work free_work;
409 * Count of objects pending destructions. Used to skip needlessly
410 * waiting on an RCU barrier if no objects are waiting to be freed.
415 * tmpfs instance used for shmem backed objects
417 struct vfsmount *gemfs;
419 struct intel_memory_region *regions[INTEL_REGION_UNKNOWN];
421 struct notifier_block oom_notifier;
422 struct notifier_block vmap_notifier;
423 struct shrinker shrinker;
425 #ifdef CONFIG_MMU_NOTIFIER
427 * notifier_lock for mmu notifiers, memory may not be allocated
428 * while holding this lock.
430 rwlock_t notifier_lock;
433 /* shrinker accounting, also useful for userland debugging */
438 #define I915_IDLE_ENGINES_TIMEOUT (200) /* in ms */
440 unsigned long i915_fence_context_timeout(const struct drm_i915_private *i915,
443 static inline unsigned long
444 i915_fence_timeout(const struct drm_i915_private *i915)
446 return i915_fence_context_timeout(i915, U64_MAX);
449 /* Amount of SAGV/QGV points, BSpec precisely defines this */
450 #define I915_NUM_QGV_POINTS 8
452 #define HAS_HW_SAGV_WM(i915) (DISPLAY_VER(i915) >= 13 && !IS_DGFX(i915))
454 /* Amount of PSF GV points, BSpec precisely defines this */
455 #define I915_NUM_PSF_GV_POINTS 3
457 struct intel_vbt_data {
461 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
462 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
465 unsigned int int_tv_support:1;
466 unsigned int lvds_dither:1;
467 unsigned int int_crt_support:1;
468 unsigned int lvds_use_ssc:1;
469 unsigned int int_lvds_support:1;
470 unsigned int display_clock_mode:1;
471 unsigned int fdi_rx_polarity_inverted:1;
472 unsigned int panel_type:4;
474 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
475 enum drm_panel_orientation orientation;
477 enum drrs_support_type drrs_type;
487 struct edp_power_seq pps;
494 bool require_aux_wakeup;
496 int tp1_wakeup_time_us;
497 int tp2_tp3_wakeup_time_us;
498 int psr2_tp2_tp3_wakeup_time_us;
503 u16 brightness_precision_bits;
506 u8 min_brightness; /* min_brightness/255 of max */
507 u8 controller; /* brightness controller number */
508 enum intel_backlight_type type;
514 struct mipi_config *config;
515 struct mipi_pps_data *pps;
521 const u8 *sequence[MIPI_SEQ_MAX];
522 u8 *deassert_seq; /* Used by fixup_mipi_sequences() */
523 enum drm_panel_orientation orientation;
528 struct list_head display_devices;
530 struct intel_bios_encoder_data *ports[I915_MAX_PORTS]; /* Non-NULL if port present. */
531 struct sdvo_device_mapping sdvo_mappings[2];
534 struct i915_frontbuffer_tracking {
538 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
545 struct i915_virtual_gpu {
546 struct mutex lock; /* serialises sending of g2v_notify command pkts */
551 struct i915_selftest_stash {
553 struct ida mock_region_instances;
556 /* intel_audio.c private */
557 struct intel_audio_private {
558 /* Display internal audio functions */
559 const struct intel_audio_funcs *funcs;
561 /* hda/i915 audio component */
562 struct i915_audio_component *component;
563 bool component_registered;
564 /* mutex for audio/video sync */
569 /* Used to save the pipe-to-encoder mapping for audio */
570 struct intel_encoder *encoder_map[I915_MAX_PIPES];
572 /* necessary resource sharing with HDMI LPE audio driver. */
574 struct platform_device *platdev;
579 struct drm_i915_private {
580 struct drm_device drm;
582 /* FIXME: Device release actions should all be moved to drmm_ */
585 /* i915 device parameters */
586 struct i915_params params;
588 const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
589 struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
590 struct intel_driver_caps caps;
593 * Data Stolen Memory - aka "i915 stolen memory" gives us the start and
594 * end of stolen which we can optionally use to create GEM objects
595 * backed by stolen memory. Note that stolen_usable_size tells us
596 * exactly how much of this we are actually allowed to use, given that
597 * some portion of it is in fact reserved for use by hardware functions.
601 * Reseved portion of Data Stolen Memory
603 struct resource dsm_reserved;
606 * Stolen memory is segmented in hardware with different portions
607 * offlimits to certain functions.
609 * The drm_mm is initialised to the total accessible range, as found
610 * from the PCI config. On Broadwell+, this is further restricted to
611 * avoid the first page! The upper end of stolen memory is reserved for
612 * hardware functions and similarly removed from the accessible range.
614 resource_size_t stolen_usable_size; /* Total size minus reserved ranges */
616 struct intel_uncore uncore;
617 struct intel_uncore_mmio_debug mmio_debug;
619 struct i915_virtual_gpu vgpu;
621 struct intel_gvt *gvt;
623 struct intel_wopcm wopcm;
625 struct intel_dmc dmc;
627 struct intel_gmbus gmbus[GMBUS_NUM_PINS];
629 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
630 * controller on different i2c buses. */
631 struct mutex gmbus_mutex;
634 * Base address of where the gmbus and gpio blocks are located (either
635 * on PCH or on SoC for platforms without PCH).
639 /* MMIO base address for MIPI regs */
644 wait_queue_head_t gmbus_wait_queue;
646 struct pci_dev *bridge_dev;
648 struct rb_root uabi_engines;
650 struct resource mch_res;
652 /* protects the irq masks */
655 bool display_irqs_enabled;
657 /* Sideband mailbox protection */
658 struct mutex sb_lock;
659 struct pm_qos_request sb_qos;
661 /** Cached value of IMR to avoid reads in updating the bitfield */
664 u32 de_irq_mask[I915_MAX_PIPES];
666 u32 pipestat_irq_mask[I915_MAX_PIPES];
668 struct i915_hotplug hotplug;
669 struct intel_fbc *fbc[I915_MAX_FBCS];
670 struct i915_drrs drrs;
671 struct intel_opregion opregion;
672 struct intel_vbt_data vbt;
674 bool preserve_bios_swizzle;
677 struct intel_overlay *overlay;
679 /* backlight registers and fields in struct intel_panel */
680 struct mutex backlight_lock;
682 /* protects panel power sequencer state */
683 struct mutex pps_mutex;
685 unsigned int fsb_freq, mem_freq, is_ddr3;
686 unsigned int skl_preferred_vco_freq;
687 unsigned int max_cdclk_freq;
689 unsigned int max_dotclk_freq;
690 unsigned int hpll_freq;
691 unsigned int fdi_pll_freq;
692 unsigned int czclk_freq;
695 /* The current hardware cdclk configuration */
696 struct intel_cdclk_config hw;
698 /* cdclk, divider, and ratio table from bspec */
699 const struct intel_cdclk_vals *table;
701 struct intel_global_obj obj;
705 /* The current hardware dbuf configuration */
708 struct intel_global_obj obj;
712 * wq - Driver workqueue for GEM.
714 * NOTE: Work items scheduled here are not allowed to grab any modeset
715 * locks, for otherwise the flushing done in the pageflip code will
716 * result in deadlocks.
718 struct workqueue_struct *wq;
720 /* ordered wq for modesets */
721 struct workqueue_struct *modeset_wq;
722 /* unbound hipri wq for page flips/plane updates */
723 struct workqueue_struct *flip_wq;
725 /* pm private clock gating functions */
726 const struct drm_i915_clock_gating_funcs *clock_gating_funcs;
728 /* pm display functions */
729 const struct drm_i915_wm_disp_funcs *wm_disp;
731 /* irq display functions */
732 const struct intel_hotplug_funcs *hotplug_funcs;
734 /* fdi display functions */
735 const struct intel_fdi_funcs *fdi_funcs;
737 /* display pll funcs */
738 const struct intel_dpll_funcs *dpll_funcs;
740 /* Display functions */
741 const struct drm_i915_display_funcs *display;
743 /* Display internal color functions */
744 const struct intel_color_funcs *color_funcs;
746 /* Display CDCLK functions */
747 const struct intel_cdclk_funcs *cdclk_funcs;
749 /* PCH chipset type */
750 enum intel_pch pch_type;
751 unsigned short pch_id;
753 unsigned long quirks;
755 struct drm_atomic_state *modeset_restore_state;
756 struct drm_modeset_acquire_ctx reset_ctx;
758 struct i915_ggtt ggtt; /* VM representing the global address space */
760 struct i915_gem_mm mm;
762 /* Kernel Modesetting */
765 * dpll and cdclk state is protected by connection_mutex
766 * dpll.lock serializes intel_{prepare,enable,disable}_shared_dpll.
767 * Must be global rather than per dpll, because on some platforms plls
774 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
775 const struct intel_dpll_mgr *mgr;
783 struct list_head global_obj_list;
786 * For reading active_pipes holding any crtc lock is
787 * sufficient, for writing must hold all of them.
791 struct i915_frontbuffer_tracking fb_tracking;
793 struct intel_atomic_helper {
794 struct llist_head free_list;
795 struct work_struct free_work;
798 bool mchbar_need_disable;
800 struct intel_l3_parity l3_parity;
803 * HTI (aka HDPORT) state read during initial hw readout. Most
804 * platforms don't have HTI, so this will just stay 0. Those that do
805 * will use this later to figure out which PLLs and PHYs are unavailable
812 * Cannot be determined by PCIID. You must always read a register.
816 struct i915_power_domains power_domains;
818 struct i915_gpu_error gpu_error;
820 struct drm_i915_gem_object *vlv_pctx;
822 /* list of fbdev register on this device */
823 struct intel_fbdev *fbdev;
824 struct work_struct fbdev_suspend_work;
826 struct drm_property *broadcast_rgb_property;
827 struct drm_property *force_audio_property;
831 /* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
834 * Shadows for CHV DPLL_MD regs to keep the state
835 * checker somewhat working in the presence hardware
836 * crappiness (can't read out DPLL_MD for pipes B & C).
838 u32 chv_dpll_md[I915_MAX_PIPES];
842 bool power_domains_suspended;
843 struct i915_suspend_saved_registers regfile;
844 struct vlv_s0ix_state *vlv_s0ix_state;
847 I915_SAGV_UNKNOWN = 0,
850 I915_SAGV_NOT_CONTROLLED
853 u32 sagv_block_time_us;
857 * Raw watermark latency values:
858 * in 0.1us units for WM0,
859 * in 0.5us units for WM1+.
868 * Raw watermark memory latency values
869 * for SKL for all 8 levels
874 /* current hardware state */
876 struct ilk_wm_values hw;
877 struct vlv_wm_values vlv;
878 struct g4x_wm_values g4x;
884 * Should be held around atomic WM register writing; also
885 * protects * intel_crtc->wm.active and
886 * crtc_state->wm.need_postvbl_update.
888 struct mutex wm_mutex;
892 bool wm_lv_0_adjust_needed;
894 bool symmetric_memory;
895 enum intel_dram_type {
905 u8 num_psf_gv_points;
908 struct intel_bw_info {
909 /* for each QGV point */
910 unsigned int deratedbw[I915_NUM_QGV_POINTS];
911 /* for each PSF GV point */
912 unsigned int psf_bw[I915_NUM_PSF_GV_POINTS];
914 u8 num_psf_gv_points;
918 struct intel_global_obj bw_obj;
920 struct intel_runtime_pm runtime_pm;
922 struct i915_perf perf;
924 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
928 struct i915_gem_contexts {
929 spinlock_t lock; /* locks list */
930 struct list_head list;
934 * We replace the local file with a global mappings as the
935 * backing storage for the mmap is on the device and not
936 * on the struct file, and we do not want to prolong the
937 * lifetime of the local fd. To minimise the number of
938 * anonymous inodes we create, we use a global singleton to
939 * share the global mapping.
941 struct file *mmap_singleton;
946 /* Window2 specifies time required to program DSB (Window2) in number of scan lines */
951 /* For i915gm/i945gm vblank irq workaround */
956 /* perform PHY state sanity checks? */
957 bool chv_phy_assert[2];
961 struct intel_audio_private audio;
965 struct i915_hdcp_comp_master *hdcp_master;
966 bool hdcp_comp_added;
968 /* Mutex to protect the above hdcp component related values. */
969 struct mutex hdcp_comp_mutex;
971 /* The TTM device structure. */
972 struct ttm_device bdev;
974 I915_SELFTEST_DECLARE(struct i915_selftest_stash selftest;)
977 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
978 * will be rejected. Instead look for a better place.
982 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
984 return container_of(dev, struct drm_i915_private, drm);
987 static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
989 return dev_get_drvdata(kdev);
992 static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
994 return pci_get_drvdata(pdev);
997 static inline struct intel_gt *to_gt(struct drm_i915_private *i915)
1002 /* Simple iterator over all initialised engines */
1003 #define for_each_engine(engine__, dev_priv__, id__) \
1005 (id__) < I915_NUM_ENGINES; \
1007 for_each_if ((engine__) = (dev_priv__)->engine[(id__)])
1009 /* Iterator over subset of engines selected by mask */
1010 #define for_each_engine_masked(engine__, gt__, mask__, tmp__) \
1011 for ((tmp__) = (mask__) & (gt__)->info.engine_mask; \
1013 ((engine__) = (gt__)->engine[__mask_next_bit(tmp__)]), 1 : \
1016 #define rb_to_uabi_engine(rb) \
1017 rb_entry_safe(rb, struct intel_engine_cs, uabi_node)
1019 #define for_each_uabi_engine(engine__, i915__) \
1020 for ((engine__) = rb_to_uabi_engine(rb_first(&(i915__)->uabi_engines));\
1022 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1024 #define for_each_uabi_class_engine(engine__, class__, i915__) \
1025 for ((engine__) = intel_engine_lookup_user((i915__), (class__), 0); \
1026 (engine__) && (engine__)->uabi_class == (class__); \
1027 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1029 #define I915_GTT_OFFSET_NONE ((u32)-1)
1032 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1033 * considered to be the frontbuffer for the given plane interface-wise. This
1034 * doesn't mean that the hw necessarily already scans it out, but that any
1035 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1037 * We have one bit per pipe and per scanout plane type.
1039 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
1040 #define INTEL_FRONTBUFFER(pipe, plane_id) ({ \
1041 BUILD_BUG_ON(INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES > 32); \
1042 BUILD_BUG_ON(I915_MAX_PLANES > INTEL_FRONTBUFFER_BITS_PER_PIPE); \
1043 BIT((plane_id) + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)); \
1045 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1046 BIT(INTEL_FRONTBUFFER_BITS_PER_PIPE - 1 + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1047 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1048 GENMASK(INTEL_FRONTBUFFER_BITS_PER_PIPE * ((pipe) + 1) - 1, \
1049 INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1051 #define INTEL_INFO(dev_priv) (&(dev_priv)->__info)
1052 #define RUNTIME_INFO(dev_priv) (&(dev_priv)->__runtime)
1053 #define DRIVER_CAPS(dev_priv) (&(dev_priv)->caps)
1055 #define INTEL_DEVID(dev_priv) (RUNTIME_INFO(dev_priv)->device_id)
1057 #define IP_VER(ver, rel) ((ver) << 8 | (rel))
1059 #define GRAPHICS_VER(i915) (INTEL_INFO(i915)->graphics.ver)
1060 #define GRAPHICS_VER_FULL(i915) IP_VER(INTEL_INFO(i915)->graphics.ver, \
1061 INTEL_INFO(i915)->graphics.rel)
1062 #define IS_GRAPHICS_VER(i915, from, until) \
1063 (GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
1065 #define MEDIA_VER(i915) (INTEL_INFO(i915)->media.ver)
1066 #define MEDIA_VER_FULL(i915) IP_VER(INTEL_INFO(i915)->media.arch, \
1067 INTEL_INFO(i915)->media.rel)
1068 #define IS_MEDIA_VER(i915, from, until) \
1069 (MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
1071 #define DISPLAY_VER(i915) (INTEL_INFO(i915)->display.ver)
1072 #define IS_DISPLAY_VER(i915, from, until) \
1073 (DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))
1075 #define INTEL_REVID(dev_priv) (to_pci_dev((dev_priv)->drm.dev)->revision)
1077 #define HAS_DSB(dev_priv) (INTEL_INFO(dev_priv)->display.has_dsb)
1079 #define INTEL_DISPLAY_STEP(__i915) (RUNTIME_INFO(__i915)->step.display_step)
1080 #define INTEL_GRAPHICS_STEP(__i915) (RUNTIME_INFO(__i915)->step.graphics_step)
1081 #define INTEL_MEDIA_STEP(__i915) (RUNTIME_INFO(__i915)->step.media_step)
1083 #define IS_DISPLAY_STEP(__i915, since, until) \
1084 (drm_WARN_ON(&(__i915)->drm, INTEL_DISPLAY_STEP(__i915) == STEP_NONE), \
1085 INTEL_DISPLAY_STEP(__i915) >= (since) && INTEL_DISPLAY_STEP(__i915) < (until))
1087 #define IS_GRAPHICS_STEP(__i915, since, until) \
1088 (drm_WARN_ON(&(__i915)->drm, INTEL_GRAPHICS_STEP(__i915) == STEP_NONE), \
1089 INTEL_GRAPHICS_STEP(__i915) >= (since) && INTEL_GRAPHICS_STEP(__i915) < (until))
1091 #define IS_MEDIA_STEP(__i915, since, until) \
1092 (drm_WARN_ON(&(__i915)->drm, INTEL_MEDIA_STEP(__i915) == STEP_NONE), \
1093 INTEL_MEDIA_STEP(__i915) >= (since) && INTEL_MEDIA_STEP(__i915) < (until))
1095 static __always_inline unsigned int
1096 __platform_mask_index(const struct intel_runtime_info *info,
1097 enum intel_platform p)
1099 const unsigned int pbits =
1100 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1102 /* Expand the platform_mask array if this fails. */
1103 BUILD_BUG_ON(INTEL_MAX_PLATFORMS >
1104 pbits * ARRAY_SIZE(info->platform_mask));
1109 static __always_inline unsigned int
1110 __platform_mask_bit(const struct intel_runtime_info *info,
1111 enum intel_platform p)
1113 const unsigned int pbits =
1114 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1116 return p % pbits + INTEL_SUBPLATFORM_BITS;
1120 intel_subplatform(const struct intel_runtime_info *info, enum intel_platform p)
1122 const unsigned int pi = __platform_mask_index(info, p);
1124 return info->platform_mask[pi] & INTEL_SUBPLATFORM_MASK;
1127 static __always_inline bool
1128 IS_PLATFORM(const struct drm_i915_private *i915, enum intel_platform p)
1130 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1131 const unsigned int pi = __platform_mask_index(info, p);
1132 const unsigned int pb = __platform_mask_bit(info, p);
1134 BUILD_BUG_ON(!__builtin_constant_p(p));
1136 return info->platform_mask[pi] & BIT(pb);
1139 static __always_inline bool
1140 IS_SUBPLATFORM(const struct drm_i915_private *i915,
1141 enum intel_platform p, unsigned int s)
1143 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1144 const unsigned int pi = __platform_mask_index(info, p);
1145 const unsigned int pb = __platform_mask_bit(info, p);
1146 const unsigned int msb = BITS_PER_TYPE(info->platform_mask[0]) - 1;
1147 const u32 mask = info->platform_mask[pi];
1149 BUILD_BUG_ON(!__builtin_constant_p(p));
1150 BUILD_BUG_ON(!__builtin_constant_p(s));
1151 BUILD_BUG_ON((s) >= INTEL_SUBPLATFORM_BITS);
1153 /* Shift and test on the MSB position so sign flag can be used. */
1154 return ((mask << (msb - pb)) & (mask << (msb - s))) & BIT(msb);
1157 #define IS_MOBILE(dev_priv) (INTEL_INFO(dev_priv)->is_mobile)
1158 #define IS_DGFX(dev_priv) (INTEL_INFO(dev_priv)->is_dgfx)
1160 #define IS_I830(dev_priv) IS_PLATFORM(dev_priv, INTEL_I830)
1161 #define IS_I845G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I845G)
1162 #define IS_I85X(dev_priv) IS_PLATFORM(dev_priv, INTEL_I85X)
1163 #define IS_I865G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I865G)
1164 #define IS_I915G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915G)
1165 #define IS_I915GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915GM)
1166 #define IS_I945G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945G)
1167 #define IS_I945GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945GM)
1168 #define IS_I965G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965G)
1169 #define IS_I965GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965GM)
1170 #define IS_G45(dev_priv) IS_PLATFORM(dev_priv, INTEL_G45)
1171 #define IS_GM45(dev_priv) IS_PLATFORM(dev_priv, INTEL_GM45)
1172 #define IS_G4X(dev_priv) (IS_G45(dev_priv) || IS_GM45(dev_priv))
1173 #define IS_PINEVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_PINEVIEW)
1174 #define IS_G33(dev_priv) IS_PLATFORM(dev_priv, INTEL_G33)
1175 #define IS_IRONLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IRONLAKE)
1176 #define IS_IRONLAKE_M(dev_priv) \
1177 (IS_PLATFORM(dev_priv, INTEL_IRONLAKE) && IS_MOBILE(dev_priv))
1178 #define IS_SANDYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SANDYBRIDGE)
1179 #define IS_IVYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IVYBRIDGE)
1180 #define IS_IVB_GT1(dev_priv) (IS_IVYBRIDGE(dev_priv) && \
1181 INTEL_INFO(dev_priv)->gt == 1)
1182 #define IS_VALLEYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_VALLEYVIEW)
1183 #define IS_CHERRYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_CHERRYVIEW)
1184 #define IS_HASWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_HASWELL)
1185 #define IS_BROADWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROADWELL)
1186 #define IS_SKYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SKYLAKE)
1187 #define IS_BROXTON(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROXTON)
1188 #define IS_KABYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_KABYLAKE)
1189 #define IS_GEMINILAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_GEMINILAKE)
1190 #define IS_COFFEELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COFFEELAKE)
1191 #define IS_COMETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COMETLAKE)
1192 #define IS_ICELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ICELAKE)
1193 #define IS_JSL_EHL(dev_priv) (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE) || \
1194 IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
1195 #define IS_TIGERLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_TIGERLAKE)
1196 #define IS_ROCKETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)
1197 #define IS_DG1(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG1)
1198 #define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S)
1199 #define IS_ALDERLAKE_P(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_P)
1200 #define IS_XEHPSDV(dev_priv) IS_PLATFORM(dev_priv, INTEL_XEHPSDV)
1201 #define IS_DG2(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG2)
1202 #define IS_DG2_G10(dev_priv) \
1203 IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G10)
1204 #define IS_DG2_G11(dev_priv) \
1205 IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G11)
1206 #define IS_ADLS_RPLS(dev_priv) \
1207 IS_SUBPLATFORM(dev_priv, INTEL_ALDERLAKE_S, INTEL_SUBPLATFORM_RPL_S)
1208 #define IS_ADLP_N(dev_priv) \
1209 IS_SUBPLATFORM(dev_priv, INTEL_ALDERLAKE_P, INTEL_SUBPLATFORM_N)
1210 #define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \
1211 (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00)
1212 #define IS_BDW_ULT(dev_priv) \
1213 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULT)
1214 #define IS_BDW_ULX(dev_priv) \
1215 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULX)
1216 #define IS_BDW_GT3(dev_priv) (IS_BROADWELL(dev_priv) && \
1217 INTEL_INFO(dev_priv)->gt == 3)
1218 #define IS_HSW_ULT(dev_priv) \
1219 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULT)
1220 #define IS_HSW_GT3(dev_priv) (IS_HASWELL(dev_priv) && \
1221 INTEL_INFO(dev_priv)->gt == 3)
1222 #define IS_HSW_GT1(dev_priv) (IS_HASWELL(dev_priv) && \
1223 INTEL_INFO(dev_priv)->gt == 1)
1224 /* ULX machines are also considered ULT. */
1225 #define IS_HSW_ULX(dev_priv) \
1226 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULX)
1227 #define IS_SKL_ULT(dev_priv) \
1228 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULT)
1229 #define IS_SKL_ULX(dev_priv) \
1230 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULX)
1231 #define IS_KBL_ULT(dev_priv) \
1232 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULT)
1233 #define IS_KBL_ULX(dev_priv) \
1234 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULX)
1235 #define IS_SKL_GT2(dev_priv) (IS_SKYLAKE(dev_priv) && \
1236 INTEL_INFO(dev_priv)->gt == 2)
1237 #define IS_SKL_GT3(dev_priv) (IS_SKYLAKE(dev_priv) && \
1238 INTEL_INFO(dev_priv)->gt == 3)
1239 #define IS_SKL_GT4(dev_priv) (IS_SKYLAKE(dev_priv) && \
1240 INTEL_INFO(dev_priv)->gt == 4)
1241 #define IS_KBL_GT2(dev_priv) (IS_KABYLAKE(dev_priv) && \
1242 INTEL_INFO(dev_priv)->gt == 2)
1243 #define IS_KBL_GT3(dev_priv) (IS_KABYLAKE(dev_priv) && \
1244 INTEL_INFO(dev_priv)->gt == 3)
1245 #define IS_CFL_ULT(dev_priv) \
1246 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULT)
1247 #define IS_CFL_ULX(dev_priv) \
1248 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULX)
1249 #define IS_CFL_GT2(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1250 INTEL_INFO(dev_priv)->gt == 2)
1251 #define IS_CFL_GT3(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1252 INTEL_INFO(dev_priv)->gt == 3)
1254 #define IS_CML_ULT(dev_priv) \
1255 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULT)
1256 #define IS_CML_ULX(dev_priv) \
1257 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULX)
1258 #define IS_CML_GT2(dev_priv) (IS_COMETLAKE(dev_priv) && \
1259 INTEL_INFO(dev_priv)->gt == 2)
1261 #define IS_ICL_WITH_PORT_F(dev_priv) \
1262 IS_SUBPLATFORM(dev_priv, INTEL_ICELAKE, INTEL_SUBPLATFORM_PORTF)
1264 #define IS_TGL_U(dev_priv) \
1265 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULT)
1267 #define IS_TGL_Y(dev_priv) \
1268 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULX)
1270 #define IS_SKL_GRAPHICS_STEP(p, since, until) (IS_SKYLAKE(p) && IS_GRAPHICS_STEP(p, since, until))
1272 #define IS_KBL_GRAPHICS_STEP(dev_priv, since, until) \
1273 (IS_KABYLAKE(dev_priv) && IS_GRAPHICS_STEP(dev_priv, since, until))
1274 #define IS_KBL_DISPLAY_STEP(dev_priv, since, until) \
1275 (IS_KABYLAKE(dev_priv) && IS_DISPLAY_STEP(dev_priv, since, until))
1277 #define IS_JSL_EHL_GRAPHICS_STEP(p, since, until) \
1278 (IS_JSL_EHL(p) && IS_GRAPHICS_STEP(p, since, until))
1279 #define IS_JSL_EHL_DISPLAY_STEP(p, since, until) \
1280 (IS_JSL_EHL(p) && IS_DISPLAY_STEP(p, since, until))
1282 #define IS_TGL_DISPLAY_STEP(__i915, since, until) \
1283 (IS_TIGERLAKE(__i915) && \
1284 IS_DISPLAY_STEP(__i915, since, until))
1286 #define IS_TGL_UY_GRAPHICS_STEP(__i915, since, until) \
1287 ((IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1288 IS_GRAPHICS_STEP(__i915, since, until))
1290 #define IS_TGL_GRAPHICS_STEP(__i915, since, until) \
1291 (IS_TIGERLAKE(__i915) && !(IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1292 IS_GRAPHICS_STEP(__i915, since, until))
1294 #define IS_RKL_DISPLAY_STEP(p, since, until) \
1295 (IS_ROCKETLAKE(p) && IS_DISPLAY_STEP(p, since, until))
1297 #define IS_DG1_GRAPHICS_STEP(p, since, until) \
1298 (IS_DG1(p) && IS_GRAPHICS_STEP(p, since, until))
1299 #define IS_DG1_DISPLAY_STEP(p, since, until) \
1300 (IS_DG1(p) && IS_DISPLAY_STEP(p, since, until))
1302 #define IS_ADLS_DISPLAY_STEP(__i915, since, until) \
1303 (IS_ALDERLAKE_S(__i915) && \
1304 IS_DISPLAY_STEP(__i915, since, until))
1306 #define IS_ADLS_GRAPHICS_STEP(__i915, since, until) \
1307 (IS_ALDERLAKE_S(__i915) && \
1308 IS_GRAPHICS_STEP(__i915, since, until))
1310 #define IS_ADLP_DISPLAY_STEP(__i915, since, until) \
1311 (IS_ALDERLAKE_P(__i915) && \
1312 IS_DISPLAY_STEP(__i915, since, until))
1314 #define IS_ADLP_GRAPHICS_STEP(__i915, since, until) \
1315 (IS_ALDERLAKE_P(__i915) && \
1316 IS_GRAPHICS_STEP(__i915, since, until))
1318 #define IS_XEHPSDV_GRAPHICS_STEP(__i915, since, until) \
1319 (IS_XEHPSDV(__i915) && IS_GRAPHICS_STEP(__i915, since, until))
1322 * DG2 hardware steppings are a bit unusual. The hardware design was forked
1323 * to create two variants (G10 and G11) which have distinct workaround sets.
1324 * The G11 fork of the DG2 design resets the GT stepping back to "A0" for its
1325 * first iteration, even though it's more similar to a G10 B0 stepping in terms
1326 * of functionality and workarounds. However the display stepping does not
1327 * reset in the same manner --- a specific stepping like "B0" has a consistent
1328 * meaning regardless of whether it belongs to a G10 or G11 DG2.
1330 * TLDR: All GT workarounds and stepping-specific logic must be applied in
1331 * relation to a specific subplatform (G10 or G11), whereas display workarounds
1332 * and stepping-specific logic will be applied with a general DG2-wide stepping
1335 #define IS_DG2_GRAPHICS_STEP(__i915, variant, since, until) \
1336 (IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
1337 IS_GRAPHICS_STEP(__i915, since, until))
1339 #define IS_DG2_DISPLAY_STEP(__i915, since, until) \
1340 (IS_DG2(__i915) && \
1341 IS_DISPLAY_STEP(__i915, since, until))
1343 #define IS_LP(dev_priv) (INTEL_INFO(dev_priv)->is_lp)
1344 #define IS_GEN9_LP(dev_priv) (GRAPHICS_VER(dev_priv) == 9 && IS_LP(dev_priv))
1345 #define IS_GEN9_BC(dev_priv) (GRAPHICS_VER(dev_priv) == 9 && !IS_LP(dev_priv))
1347 #define __HAS_ENGINE(engine_mask, id) ((engine_mask) & BIT(id))
1348 #define HAS_ENGINE(gt, id) __HAS_ENGINE((gt)->info.engine_mask, id)
1350 #define ENGINE_INSTANCES_MASK(gt, first, count) ({ \
1351 unsigned int first__ = (first); \
1352 unsigned int count__ = (count); \
1353 ((gt)->info.engine_mask & \
1354 GENMASK(first__ + count__ - 1, first__)) >> first__; \
1356 #define VDBOX_MASK(gt) \
1357 ENGINE_INSTANCES_MASK(gt, VCS0, I915_MAX_VCS)
1358 #define VEBOX_MASK(gt) \
1359 ENGINE_INSTANCES_MASK(gt, VECS0, I915_MAX_VECS)
1362 * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
1363 * All later gens can run the final buffer from the ppgtt
1365 #define CMDPARSER_USES_GGTT(dev_priv) (GRAPHICS_VER(dev_priv) == 7)
1367 #define HAS_LLC(dev_priv) (INTEL_INFO(dev_priv)->has_llc)
1368 #define HAS_SNOOP(dev_priv) (INTEL_INFO(dev_priv)->has_snoop)
1369 #define HAS_EDRAM(dev_priv) ((dev_priv)->edram_size_mb)
1370 #define HAS_SECURE_BATCHES(dev_priv) (GRAPHICS_VER(dev_priv) < 6)
1371 #define HAS_WT(dev_priv) HAS_EDRAM(dev_priv)
1373 #define HWS_NEEDS_PHYSICAL(dev_priv) (INTEL_INFO(dev_priv)->hws_needs_physical)
1375 #define HAS_LOGICAL_RING_CONTEXTS(dev_priv) \
1376 (INTEL_INFO(dev_priv)->has_logical_ring_contexts)
1377 #define HAS_LOGICAL_RING_ELSQ(dev_priv) \
1378 (INTEL_INFO(dev_priv)->has_logical_ring_elsq)
1380 #define HAS_EXECLISTS(dev_priv) HAS_LOGICAL_RING_CONTEXTS(dev_priv)
1382 #define INTEL_PPGTT(dev_priv) (INTEL_INFO(dev_priv)->ppgtt_type)
1383 #define HAS_PPGTT(dev_priv) \
1384 (INTEL_PPGTT(dev_priv) != INTEL_PPGTT_NONE)
1385 #define HAS_FULL_PPGTT(dev_priv) \
1386 (INTEL_PPGTT(dev_priv) >= INTEL_PPGTT_FULL)
1388 #define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
1389 GEM_BUG_ON((sizes) == 0); \
1390 ((sizes) & ~INTEL_INFO(dev_priv)->page_sizes) == 0; \
1393 #define HAS_OVERLAY(dev_priv) (INTEL_INFO(dev_priv)->display.has_overlay)
1394 #define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
1395 (INTEL_INFO(dev_priv)->display.overlay_needs_physical)
1397 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1398 #define HAS_BROKEN_CS_TLB(dev_priv) (IS_I830(dev_priv) || IS_I845G(dev_priv))
1400 #define NEEDS_RC6_CTX_CORRUPTION_WA(dev_priv) \
1401 (IS_BROADWELL(dev_priv) || GRAPHICS_VER(dev_priv) == 9)
1403 /* WaRsDisableCoarsePowerGating:skl,cnl */
1404 #define NEEDS_WaRsDisableCoarsePowerGating(dev_priv) \
1405 (IS_SKL_GT3(dev_priv) || IS_SKL_GT4(dev_priv))
1407 #define HAS_GMBUS_IRQ(dev_priv) (DISPLAY_VER(dev_priv) >= 4)
1408 #define HAS_GMBUS_BURST_READ(dev_priv) (DISPLAY_VER(dev_priv) >= 11 || \
1409 IS_GEMINILAKE(dev_priv) || \
1410 IS_KABYLAKE(dev_priv))
1412 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1413 * rows, which changed the alignment requirements and fence programming.
1415 #define HAS_128_BYTE_Y_TILING(dev_priv) (GRAPHICS_VER(dev_priv) != 2 && \
1416 !(IS_I915G(dev_priv) || IS_I915GM(dev_priv)))
1417 #define SUPPORTS_TV(dev_priv) (INTEL_INFO(dev_priv)->display.supports_tv)
1418 #define I915_HAS_HOTPLUG(dev_priv) (INTEL_INFO(dev_priv)->display.has_hotplug)
1420 #define HAS_FW_BLC(dev_priv) (DISPLAY_VER(dev_priv) > 2)
1421 #define HAS_FBC(dev_priv) (INTEL_INFO(dev_priv)->display.fbc_mask != 0)
1422 #define HAS_CUR_FBC(dev_priv) (!HAS_GMCH(dev_priv) && DISPLAY_VER(dev_priv) >= 7)
1424 #define HAS_IPS(dev_priv) (IS_HSW_ULT(dev_priv) || IS_BROADWELL(dev_priv))
1426 #define HAS_DP_MST(dev_priv) (INTEL_INFO(dev_priv)->display.has_dp_mst)
1427 #define HAS_DP20(dev_priv) (IS_DG2(dev_priv))
1429 #define HAS_CDCLK_CRAWL(dev_priv) (INTEL_INFO(dev_priv)->display.has_cdclk_crawl)
1430 #define HAS_DDI(dev_priv) (INTEL_INFO(dev_priv)->display.has_ddi)
1431 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
1432 #define HAS_PSR(dev_priv) (INTEL_INFO(dev_priv)->display.has_psr)
1433 #define HAS_PSR_HW_TRACKING(dev_priv) \
1434 (INTEL_INFO(dev_priv)->display.has_psr_hw_tracking)
1435 #define HAS_PSR2_SEL_FETCH(dev_priv) (DISPLAY_VER(dev_priv) >= 12)
1436 #define HAS_TRANSCODER(dev_priv, trans) ((INTEL_INFO(dev_priv)->display.cpu_transcoder_mask & BIT(trans)) != 0)
1438 #define HAS_RC6(dev_priv) (INTEL_INFO(dev_priv)->has_rc6)
1439 #define HAS_RC6p(dev_priv) (INTEL_INFO(dev_priv)->has_rc6p)
1440 #define HAS_RC6pp(dev_priv) (false) /* HW was never validated */
1442 #define HAS_RPS(dev_priv) (INTEL_INFO(dev_priv)->has_rps)
1444 #define HAS_DMC(dev_priv) (INTEL_INFO(dev_priv)->display.has_dmc)
1446 #define HAS_MSO(i915) (DISPLAY_VER(i915) >= 12)
1448 #define HAS_RUNTIME_PM(dev_priv) (INTEL_INFO(dev_priv)->has_runtime_pm)
1449 #define HAS_64BIT_RELOC(dev_priv) (INTEL_INFO(dev_priv)->has_64bit_reloc)
1451 #define HAS_MSLICES(dev_priv) \
1452 (INTEL_INFO(dev_priv)->has_mslices)
1455 * Set this flag, when platform requires 64K GTT page sizes or larger for
1456 * device local memory access. Also this flag implies that we require or
1457 * at least support the compact PT layout for the ppGTT when using the 64K
1460 #define HAS_64K_PAGES(dev_priv) (INTEL_INFO(dev_priv)->has_64k_pages)
1462 #define HAS_IPC(dev_priv) (INTEL_INFO(dev_priv)->display.has_ipc)
1464 #define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i))
1465 #define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM)
1467 #define HAS_GT_UC(dev_priv) (INTEL_INFO(dev_priv)->has_gt_uc)
1469 #define HAS_POOLED_EU(dev_priv) (INTEL_INFO(dev_priv)->has_pooled_eu)
1471 #define HAS_GLOBAL_MOCS_REGISTERS(dev_priv) (INTEL_INFO(dev_priv)->has_global_mocs)
1473 #define HAS_PXP(dev_priv) ((IS_ENABLED(CONFIG_DRM_I915_PXP) && \
1474 INTEL_INFO(dev_priv)->has_pxp) && \
1475 VDBOX_MASK(to_gt(dev_priv)))
1477 #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)
1479 #define HAS_LSPCON(dev_priv) (IS_DISPLAY_VER(dev_priv, 9, 10))
1481 /* DPF == dynamic parity feature */
1482 #define HAS_L3_DPF(dev_priv) (INTEL_INFO(dev_priv)->has_l3_dpf)
1483 #define NUM_L3_SLICES(dev_priv) (IS_HSW_GT3(dev_priv) ? \
1484 2 : HAS_L3_DPF(dev_priv))
1486 #define GT_FREQUENCY_MULTIPLIER 50
1487 #define GEN9_FREQ_SCALER 3
1489 #define INTEL_NUM_PIPES(dev_priv) (hweight8(INTEL_INFO(dev_priv)->display.pipe_mask))
1491 #define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->display.pipe_mask != 0)
1493 #define HAS_VRR(i915) (DISPLAY_VER(i915) >= 11)
1495 #define HAS_ASYNC_FLIPS(i915) (DISPLAY_VER(i915) >= 5)
1497 /* Only valid when HAS_DISPLAY() is true */
1498 #define INTEL_DISPLAY_ENABLED(dev_priv) \
1499 (drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
1501 static inline bool run_as_guest(void)
1503 return !hypervisor_is_type(X86_HYPER_NATIVE);
1506 #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \
1507 IS_ALDERLAKE_S(dev_priv))
1509 static inline bool intel_vtd_active(struct drm_i915_private *i915)
1511 if (device_iommu_mapped(i915->drm.dev))
1514 /* Running as a guest, we assume the host is enforcing VT'd */
1515 return run_as_guest();
1519 i915_print_iommu_status(struct drm_i915_private *i915, struct drm_printer *p);
1521 static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
1523 return DISPLAY_VER(dev_priv) >= 6 && intel_vtd_active(dev_priv);
1527 intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915)
1529 return IS_BROXTON(i915) && intel_vtd_active(i915);
1533 intel_vm_no_concurrent_access_wa(struct drm_i915_private *i915)
1535 return IS_CHERRYVIEW(i915) || intel_ggtt_update_needs_vtd_wa(i915);
1539 void i915_gem_init_early(struct drm_i915_private *dev_priv);
1540 void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);
1542 static inline void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
1545 * A single pass should suffice to release all the freed objects (along
1546 * most call paths) , but be a little more paranoid in that freeing
1547 * the objects does take a little amount of time, during which the rcu
1548 * callbacks could have added new objects into the freed list, and
1549 * armed the work again.
1551 while (atomic_read(&i915->mm.free_count)) {
1552 flush_delayed_work(&i915->mm.free_work);
1553 flush_delayed_work(&i915->bdev.wq);
1558 static inline void i915_gem_drain_workqueue(struct drm_i915_private *i915)
1561 * Similar to objects above (see i915_gem_drain_freed-objects), in
1562 * general we have workers that are armed by RCU and then rearm
1563 * themselves in their callbacks. To be paranoid, we need to
1564 * drain the workqueue a second time after waiting for the RCU
1565 * grace period so that we catch work queued via RCU from the first
1566 * pass. As neither drain_workqueue() nor flush_workqueue() report
1567 * a result, we make an assumption that we only don't require more
1568 * than 3 passes to catch all _recursive_ RCU delayed work.
1573 flush_workqueue(i915->wq);
1575 i915_gem_drain_freed_objects(i915);
1577 drain_workqueue(i915->wq);
1580 struct i915_vma * __must_check
1581 i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
1582 struct i915_gem_ww_ctx *ww,
1583 const struct i915_ggtt_view *view,
1584 u64 size, u64 alignment, u64 flags);
1586 struct i915_vma * __must_check
1587 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
1588 const struct i915_ggtt_view *view,
1589 u64 size, u64 alignment, u64 flags);
1591 int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
1592 unsigned long flags);
1593 #define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
1594 #define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
1595 #define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
1596 #define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)
1598 void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);
1600 int i915_gem_dumb_create(struct drm_file *file_priv,
1601 struct drm_device *dev,
1602 struct drm_mode_create_dumb *args);
1604 int __must_check i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno);
1606 static inline u32 i915_reset_count(struct i915_gpu_error *error)
1608 return atomic_read(&error->reset_count);
1611 static inline u32 i915_reset_engine_count(struct i915_gpu_error *error,
1612 const struct intel_engine_cs *engine)
1614 return atomic_read(&error->reset_engine_count[engine->uabi_class]);
1617 int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
1618 void i915_gem_driver_register(struct drm_i915_private *i915);
1619 void i915_gem_driver_unregister(struct drm_i915_private *i915);
1620 void i915_gem_driver_remove(struct drm_i915_private *dev_priv);
1621 void i915_gem_driver_release(struct drm_i915_private *dev_priv);
1623 int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
1625 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1626 enum i915_cache_level cache_level);
1628 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1629 struct dma_buf *dma_buf);
1631 struct dma_buf *i915_gem_prime_export(struct drm_gem_object *gem_obj, int flags);
1633 static inline struct i915_address_space *
1634 i915_gem_vm_lookup(struct drm_i915_file_private *file_priv, u32 id)
1636 struct i915_address_space *vm;
1638 xa_lock(&file_priv->vm_xa);
1639 vm = xa_load(&file_priv->vm_xa, id);
1642 xa_unlock(&file_priv->vm_xa);
1647 /* i915_gem_tiling.c */
1648 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1650 struct drm_i915_private *i915 = to_i915(obj->base.dev);
1652 return i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1653 i915_gem_object_is_tiled(obj);
1656 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
1658 /* intel_device_info.c */
1659 static inline struct intel_device_info *
1660 mkwrite_device_info(struct drm_i915_private *dev_priv)
1662 return (struct intel_device_info *)INTEL_INFO(dev_priv);
1665 static inline enum i915_map_type
1666 i915_coherent_map_type(struct drm_i915_private *i915,
1667 struct drm_i915_gem_object *obj, bool always_coherent)
1669 if (i915_gem_object_is_lmem(obj))
1671 if (HAS_LLC(i915) || always_coherent)