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/intel-gtt.h>
54 #include <drm/drm_legacy.h> /* for struct drm_dma_handle */
55 #include <drm/drm_gem.h>
56 #include <drm/drm_auth.h>
57 #include <drm/drm_cache.h>
58 #include <drm/drm_util.h>
59 #include <drm/drm_dsc.h>
60 #include <drm/drm_atomic.h>
61 #include <drm/drm_connector.h>
62 #include <drm/i915_mei_hdcp_interface.h>
64 #include "i915_params.h"
66 #include "i915_utils.h"
68 #include "display/intel_bios.h"
69 #include "display/intel_display.h"
70 #include "display/intel_display_power.h"
71 #include "display/intel_dpll_mgr.h"
72 #include "display/intel_dsb.h"
73 #include "display/intel_frontbuffer.h"
74 #include "display/intel_global_state.h"
75 #include "display/intel_gmbus.h"
76 #include "display/intel_opregion.h"
78 #include "gem/i915_gem_context_types.h"
79 #include "gem/i915_gem_shrinker.h"
80 #include "gem/i915_gem_stolen.h"
81 #include "gem/i915_gem_lmem.h"
83 #include "gt/intel_engine.h"
84 #include "gt/intel_gt_types.h"
85 #include "gt/intel_region_lmem.h"
86 #include "gt/intel_workarounds.h"
87 #include "gt/uc/intel_uc.h"
89 #include "intel_device_info.h"
90 #include "intel_memory_region.h"
91 #include "intel_pch.h"
92 #include "intel_runtime_pm.h"
93 #include "intel_step.h"
94 #include "intel_uncore.h"
95 #include "intel_wakeref.h"
96 #include "intel_wopcm.h"
99 #include "i915_gem_gtt.h"
100 #include "i915_gpu_error.h"
101 #include "i915_perf_types.h"
102 #include "i915_request.h"
103 #include "i915_scheduler.h"
104 #include "gt/intel_timeline.h"
105 #include "i915_vma.h"
106 #include "i915_irq.h"
109 /* General customization:
112 #define DRIVER_NAME "i915"
113 #define DRIVER_DESC "Intel Graphics"
114 #define DRIVER_DATE "20201103"
115 #define DRIVER_TIMESTAMP 1604406085
117 struct drm_i915_gem_object;
121 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
140 #define for_each_hpd_pin(__pin) \
141 for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
143 /* Threshold == 5 for long IRQs, 50 for short */
144 #define HPD_STORM_DEFAULT_THRESHOLD 50
146 struct i915_hotplug {
147 struct delayed_work hotplug_work;
149 const u32 *hpd, *pch_hpd;
152 unsigned long last_jiffies;
157 HPD_MARK_DISABLED = 2
159 } stats[HPD_NUM_PINS];
162 struct delayed_work reenable_work;
166 struct work_struct dig_port_work;
168 struct work_struct poll_init_work;
171 unsigned int hpd_storm_threshold;
172 /* Whether or not to count short HPD IRQs in HPD storms */
173 u8 hpd_short_storm_enabled;
176 * if we get a HPD irq from DP and a HPD irq from non-DP
177 * the non-DP HPD could block the workqueue on a mode config
178 * mutex getting, that userspace may have taken. However
179 * userspace is waiting on the DP workqueue to run which is
180 * blocked behind the non-DP one.
182 struct workqueue_struct *dp_wq;
185 #define I915_GEM_GPU_DOMAINS \
186 (I915_GEM_DOMAIN_RENDER | \
187 I915_GEM_DOMAIN_SAMPLER | \
188 I915_GEM_DOMAIN_COMMAND | \
189 I915_GEM_DOMAIN_INSTRUCTION | \
190 I915_GEM_DOMAIN_VERTEX)
192 struct drm_i915_private;
193 struct i915_mm_struct;
194 struct i915_mmu_object;
196 struct drm_i915_file_private {
197 struct drm_i915_private *dev_priv;
200 struct drm_file *file;
204 struct xarray context_xa;
207 unsigned int bsd_engine;
210 * Every context ban increments per client ban score. Also
211 * hangs in short succession increments ban score. If ban threshold
212 * is reached, client is considered banned and submitting more work
213 * will fail. This is a stop gap measure to limit the badly behaving
214 * clients access to gpu. Note that unbannable contexts never increment
215 * the client ban score.
217 #define I915_CLIENT_SCORE_HANG_FAST 1
218 #define I915_CLIENT_FAST_HANG_JIFFIES (60 * HZ)
219 #define I915_CLIENT_SCORE_CONTEXT_BAN 3
220 #define I915_CLIENT_SCORE_BANNED 9
221 /** ban_score: Accumulated score of all ctx bans and fast hangs. */
223 unsigned long hang_timestamp;
226 /* Interface history:
229 * 1.2: Add Power Management
230 * 1.3: Add vblank support
231 * 1.4: Fix cmdbuffer path, add heap destroy
232 * 1.5: Add vblank pipe configuration
233 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
234 * - Support vertical blank on secondary display pipe
236 #define DRIVER_MAJOR 1
237 #define DRIVER_MINOR 6
238 #define DRIVER_PATCHLEVEL 0
240 struct intel_overlay;
241 struct intel_overlay_error_state;
243 struct sdvo_device_mapping {
252 struct intel_connector;
253 struct intel_encoder;
254 struct intel_atomic_state;
255 struct intel_cdclk_config;
256 struct intel_cdclk_state;
257 struct intel_cdclk_vals;
258 struct intel_initial_plane_config;
263 struct drm_i915_display_funcs {
264 void (*get_cdclk)(struct drm_i915_private *dev_priv,
265 struct intel_cdclk_config *cdclk_config);
266 void (*set_cdclk)(struct drm_i915_private *dev_priv,
267 const struct intel_cdclk_config *cdclk_config,
269 int (*bw_calc_min_cdclk)(struct intel_atomic_state *state);
270 int (*get_fifo_size)(struct drm_i915_private *dev_priv,
271 enum i9xx_plane_id i9xx_plane);
272 int (*compute_pipe_wm)(struct intel_crtc_state *crtc_state);
273 int (*compute_intermediate_wm)(struct intel_crtc_state *crtc_state);
274 void (*initial_watermarks)(struct intel_atomic_state *state,
275 struct intel_crtc *crtc);
276 void (*atomic_update_watermarks)(struct intel_atomic_state *state,
277 struct intel_crtc *crtc);
278 void (*optimize_watermarks)(struct intel_atomic_state *state,
279 struct intel_crtc *crtc);
280 int (*compute_global_watermarks)(struct intel_atomic_state *state);
281 void (*update_wm)(struct intel_crtc *crtc);
282 int (*modeset_calc_cdclk)(struct intel_cdclk_state *state);
283 u8 (*calc_voltage_level)(int cdclk);
284 /* Returns the active state of the crtc, and if the crtc is active,
285 * fills out the pipe-config with the hw state. */
286 bool (*get_pipe_config)(struct intel_crtc *,
287 struct intel_crtc_state *);
288 void (*get_initial_plane_config)(struct intel_crtc *,
289 struct intel_initial_plane_config *);
290 int (*crtc_compute_clock)(struct intel_crtc *crtc,
291 struct intel_crtc_state *crtc_state);
292 void (*crtc_enable)(struct intel_atomic_state *state,
293 struct intel_crtc *crtc);
294 void (*crtc_disable)(struct intel_atomic_state *state,
295 struct intel_crtc *crtc);
296 void (*commit_modeset_enables)(struct intel_atomic_state *state);
297 void (*commit_modeset_disables)(struct intel_atomic_state *state);
298 void (*audio_codec_enable)(struct intel_encoder *encoder,
299 const struct intel_crtc_state *crtc_state,
300 const struct drm_connector_state *conn_state);
301 void (*audio_codec_disable)(struct intel_encoder *encoder,
302 const struct intel_crtc_state *old_crtc_state,
303 const struct drm_connector_state *old_conn_state);
304 void (*fdi_link_train)(struct intel_crtc *crtc,
305 const struct intel_crtc_state *crtc_state);
306 void (*init_clock_gating)(struct drm_i915_private *dev_priv);
307 void (*hpd_irq_setup)(struct drm_i915_private *dev_priv);
308 /* clock updates for mode set */
310 /* render clock increase/decrease */
311 /* display clock increase/decrease */
312 /* pll clock increase/decrease */
314 int (*color_check)(struct intel_crtc_state *crtc_state);
316 * Program double buffered color management registers during
317 * vblank evasion. The registers should then latch during the
318 * next vblank start, alongside any other double buffered registers
319 * involved with the same commit.
321 void (*color_commit)(const struct intel_crtc_state *crtc_state);
323 * Load LUTs (and other single buffered color management
324 * registers). Will (hopefully) be called during the vblank
325 * following the latching of any double buffered registers
326 * involved with the same commit.
328 void (*load_luts)(const struct intel_crtc_state *crtc_state);
329 void (*read_luts)(struct intel_crtc_state *crtc_state);
333 struct work_struct work;
335 u32 required_version;
336 u32 max_fw_size; /* bytes */
338 u32 dmc_fw_size; /* dwords */
341 i915_reg_t mmioaddr[20];
346 intel_wakeref_t wakeref;
349 enum i915_cache_level {
351 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
352 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
353 caches, eg sampler/render caches, and the
354 large Last-Level-Cache. LLC is coherent with
355 the CPU, but L3 is only visible to the GPU. */
356 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
359 #define I915_COLOR_UNEVICTABLE (-1) /* a non-vma sharing the address space */
362 /* This is always the inner lock when overlapping with struct_mutex and
363 * it's the outer lock when overlapping with stolen_lock. */
366 unsigned int possible_framebuffer_bits;
367 unsigned int busy_bits;
368 struct intel_crtc *crtc;
370 struct drm_mm_node compressed_fb;
371 struct drm_mm_node *compressed_llb;
379 bool underrun_detected;
380 struct work_struct underrun_work;
383 * Due to the atomic rules we can't access some structures without the
384 * appropriate locking, so we cache information here in order to avoid
387 struct intel_fbc_state_cache {
389 unsigned int mode_flags;
390 u32 hsw_bdw_pixel_rate;
394 unsigned int rotation;
399 * Display surface base address adjustement for
400 * pageflips. Note that on gen4+ this only adjusts up
401 * to a tile, offsets within a tile are handled in
402 * the hw itself (with the TILEOFF register).
407 u16 pixel_blend_mode;
411 const struct drm_format_info *format;
416 unsigned int fence_y_offset;
417 u16 gen9_wa_cfb_stride;
424 * This structure contains everything that's relevant to program the
425 * hardware registers. When we want to figure out if we need to disable
426 * and re-enable FBC for a new configuration we just check if there's
427 * something different in the struct. The genx_fbc_activate functions
428 * are supposed to read from it in order to program the registers.
430 struct intel_fbc_reg_params {
433 enum i9xx_plane_id i9xx_plane;
437 const struct drm_format_info *format;
443 unsigned int fence_y_offset;
444 u16 gen9_wa_cfb_stride;
450 const char *no_fbc_reason;
454 * HIGH_RR is the highest eDP panel refresh rate read from EDID
455 * LOW_RR is the lowest eDP panel refresh rate found from EDID
456 * parsing for same resolution.
458 enum drrs_refresh_rate_type {
461 DRRS_MAX_RR, /* RR count */
464 enum drrs_support_type {
465 DRRS_NOT_SUPPORTED = 0,
466 STATIC_DRRS_SUPPORT = 1,
467 SEAMLESS_DRRS_SUPPORT = 2
473 struct delayed_work work;
475 unsigned busy_frontbuffer_bits;
476 enum drrs_refresh_rate_type refresh_rate_type;
477 enum drrs_support_type type;
480 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
481 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
482 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
483 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
484 #define QUIRK_INCREASE_T12_DELAY (1<<6)
485 #define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
488 struct intel_fbc_work;
491 struct i2c_adapter adapter;
492 #define GMBUS_FORCE_BIT_RETRY (1U << 31)
496 struct i2c_algo_bit_data bit_algo;
497 struct drm_i915_private *dev_priv;
500 struct i915_suspend_saved_registers {
508 struct vlv_s0ix_state;
510 #define MAX_L3_SLICES 2
511 struct intel_l3_parity {
512 u32 *remap_info[MAX_L3_SLICES];
513 struct work_struct error_work;
519 * Shortcut for the stolen region. This points to either
520 * INTEL_REGION_STOLEN_SMEM for integrated platforms, or
521 * INTEL_REGION_STOLEN_LMEM for discrete, or NULL if the device doesn't
524 struct intel_memory_region *stolen_region;
525 /** Memory allocator for GTT stolen memory */
526 struct drm_mm stolen;
527 /** Protects the usage of the GTT stolen memory allocator. This is
528 * always the inner lock when overlapping with struct_mutex. */
529 struct mutex stolen_lock;
531 /* Protects bound_list/unbound_list and #drm_i915_gem_object.mm.link */
535 * List of objects which are purgeable.
537 struct list_head purge_list;
540 * List of objects which have allocated pages and are shrinkable.
542 struct list_head shrink_list;
545 * List of objects which are pending destruction.
547 struct llist_head free_list;
548 struct work_struct free_work;
550 * Count of objects pending destructions. Used to skip needlessly
551 * waiting on an RCU barrier if no objects are waiting to be freed.
556 * tmpfs instance used for shmem backed objects
558 struct vfsmount *gemfs;
560 struct intel_memory_region *regions[INTEL_REGION_UNKNOWN];
562 struct notifier_block oom_notifier;
563 struct notifier_block vmap_notifier;
564 struct shrinker shrinker;
566 #ifdef CONFIG_MMU_NOTIFIER
568 * notifier_lock for mmu notifiers, memory may not be allocated
569 * while holding this lock.
571 spinlock_t notifier_lock;
574 /* shrinker accounting, also useful for userland debugging */
579 #define I915_IDLE_ENGINES_TIMEOUT (200) /* in ms */
581 unsigned long i915_fence_context_timeout(const struct drm_i915_private *i915,
584 static inline unsigned long
585 i915_fence_timeout(const struct drm_i915_private *i915)
587 return i915_fence_context_timeout(i915, U64_MAX);
590 /* Amount of SAGV/QGV points, BSpec precisely defines this */
591 #define I915_NUM_QGV_POINTS 8
593 struct ddi_vbt_port_info {
594 /* Non-NULL if port present. */
595 struct intel_bios_encoder_data *devdata;
599 /* This is an index in the HDMI/DVI DDI buffer translation table. */
601 u8 hdmi_level_shift_set:1;
603 u8 alternate_aux_channel;
604 u8 alternate_ddc_pin;
606 int dp_max_link_rate; /* 0 for not limited by VBT */
609 enum psr_lines_to_wait {
610 PSR_0_LINES_TO_WAIT = 0,
616 struct intel_vbt_data {
620 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
621 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
624 unsigned int int_tv_support:1;
625 unsigned int lvds_dither:1;
626 unsigned int int_crt_support:1;
627 unsigned int lvds_use_ssc:1;
628 unsigned int int_lvds_support:1;
629 unsigned int display_clock_mode:1;
630 unsigned int fdi_rx_polarity_inverted:1;
631 unsigned int panel_type:4;
633 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
634 enum drm_panel_orientation orientation;
636 enum drrs_support_type drrs_type;
646 struct edp_power_seq pps;
653 bool require_aux_wakeup;
655 enum psr_lines_to_wait lines_to_wait;
656 int tp1_wakeup_time_us;
657 int tp2_tp3_wakeup_time_us;
658 int psr2_tp2_tp3_wakeup_time_us;
665 u8 min_brightness; /* min_brightness/255 of max */
666 u8 controller; /* brightness controller number */
667 enum intel_backlight_type type;
673 struct mipi_config *config;
674 struct mipi_pps_data *pps;
680 const u8 *sequence[MIPI_SEQ_MAX];
681 u8 *deassert_seq; /* Used by fixup_mipi_sequences() */
682 enum drm_panel_orientation orientation;
687 struct list_head display_devices;
689 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
690 struct sdvo_device_mapping sdvo_mappings[2];
693 enum intel_ddb_partitioning {
695 INTEL_DDB_PART_5_6, /* IVB+ */
698 struct ilk_wm_values {
703 enum intel_ddb_partitioning partitioning;
707 u16 plane[I915_MAX_PLANES];
717 struct vlv_wm_ddl_values {
718 u8 plane[I915_MAX_PLANES];
721 struct vlv_wm_values {
722 struct g4x_pipe_wm pipe[3];
724 struct vlv_wm_ddl_values ddl[3];
729 struct g4x_wm_values {
730 struct g4x_pipe_wm pipe[2];
732 struct g4x_sr_wm hpll;
738 struct skl_ddb_entry {
739 u16 start, end; /* in number of blocks, 'end' is exclusive */
742 static inline u16 skl_ddb_entry_size(const struct skl_ddb_entry *entry)
744 return entry->end - entry->start;
747 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
748 const struct skl_ddb_entry *e2)
750 if (e1->start == e2->start && e1->end == e2->end)
756 struct i915_frontbuffer_tracking {
760 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
767 struct i915_virtual_gpu {
768 struct mutex lock; /* serialises sending of g2v_notify command pkts */
773 struct intel_cdclk_config {
774 unsigned int cdclk, vco, ref, bypass;
778 struct i915_selftest_stash {
782 struct drm_i915_private {
783 struct drm_device drm;
785 /* FIXME: Device release actions should all be moved to drmm_ */
788 /* i915 device parameters */
789 struct i915_params params;
791 const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
792 struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
793 struct intel_driver_caps caps;
796 * Data Stolen Memory - aka "i915 stolen memory" gives us the start and
797 * end of stolen which we can optionally use to create GEM objects
798 * backed by stolen memory. Note that stolen_usable_size tells us
799 * exactly how much of this we are actually allowed to use, given that
800 * some portion of it is in fact reserved for use by hardware functions.
804 * Reseved portion of Data Stolen Memory
806 struct resource dsm_reserved;
809 * Stolen memory is segmented in hardware with different portions
810 * offlimits to certain functions.
812 * The drm_mm is initialised to the total accessible range, as found
813 * from the PCI config. On Broadwell+, this is further restricted to
814 * avoid the first page! The upper end of stolen memory is reserved for
815 * hardware functions and similarly removed from the accessible range.
817 resource_size_t stolen_usable_size; /* Total size minus reserved ranges */
819 struct intel_uncore uncore;
820 struct intel_uncore_mmio_debug mmio_debug;
822 struct i915_virtual_gpu vgpu;
824 struct intel_gvt *gvt;
826 struct intel_wopcm wopcm;
828 struct intel_csr csr;
830 struct intel_gmbus gmbus[GMBUS_NUM_PINS];
832 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
833 * controller on different i2c buses. */
834 struct mutex gmbus_mutex;
837 * Base address of where the gmbus and gpio blocks are located (either
838 * on PCH or on SoC for platforms without PCH).
842 u32 hsw_psr_mmio_adjust;
844 /* MMIO base address for MIPI regs */
849 wait_queue_head_t gmbus_wait_queue;
851 struct pci_dev *bridge_dev;
853 struct rb_root uabi_engines;
855 struct resource mch_res;
857 /* protects the irq masks */
860 bool display_irqs_enabled;
862 /* Sideband mailbox protection */
863 struct mutex sb_lock;
864 struct pm_qos_request sb_qos;
866 /** Cached value of IMR to avoid reads in updating the bitfield */
869 u32 de_irq_mask[I915_MAX_PIPES];
871 u32 pipestat_irq_mask[I915_MAX_PIPES];
873 struct i915_hotplug hotplug;
874 struct intel_fbc fbc;
875 struct i915_drrs drrs;
876 struct intel_opregion opregion;
877 struct intel_vbt_data vbt;
879 bool preserve_bios_swizzle;
882 struct intel_overlay *overlay;
884 /* backlight registers and fields in struct intel_panel */
885 struct mutex backlight_lock;
887 /* protects panel power sequencer state */
888 struct mutex pps_mutex;
890 unsigned int fsb_freq, mem_freq, is_ddr3;
891 unsigned int skl_preferred_vco_freq;
892 unsigned int max_cdclk_freq;
894 unsigned int max_dotclk_freq;
895 unsigned int hpll_freq;
896 unsigned int fdi_pll_freq;
897 unsigned int czclk_freq;
900 /* The current hardware cdclk configuration */
901 struct intel_cdclk_config hw;
903 /* cdclk, divider, and ratio table from bspec */
904 const struct intel_cdclk_vals *table;
906 struct intel_global_obj obj;
910 /* The current hardware dbuf configuration */
913 struct intel_global_obj obj;
917 * wq - Driver workqueue for GEM.
919 * NOTE: Work items scheduled here are not allowed to grab any modeset
920 * locks, for otherwise the flushing done in the pageflip code will
921 * result in deadlocks.
923 struct workqueue_struct *wq;
925 /* ordered wq for modesets */
926 struct workqueue_struct *modeset_wq;
927 /* unbound hipri wq for page flips/plane updates */
928 struct workqueue_struct *flip_wq;
930 /* Display functions */
931 struct drm_i915_display_funcs display;
933 /* PCH chipset type */
934 enum intel_pch pch_type;
935 unsigned short pch_id;
937 unsigned long quirks;
939 struct drm_atomic_state *modeset_restore_state;
940 struct drm_modeset_acquire_ctx reset_ctx;
942 struct i915_ggtt ggtt; /* VM representing the global address space */
944 struct i915_gem_mm mm;
946 /* Kernel Modesetting */
948 struct intel_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
949 struct intel_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
952 * dpll and cdclk state is protected by connection_mutex
953 * dpll.lock serializes intel_{prepare,enable,disable}_shared_dpll.
954 * Must be global rather than per dpll, because on some platforms plls
961 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
962 const struct intel_dpll_mgr *mgr;
970 struct list_head global_obj_list;
973 * For reading active_pipes holding any crtc lock is
974 * sufficient, for writing must hold all of them.
978 struct i915_wa_list gt_wa_list;
980 struct i915_frontbuffer_tracking fb_tracking;
982 struct intel_atomic_helper {
983 struct llist_head free_list;
984 struct work_struct free_work;
987 bool mchbar_need_disable;
989 struct intel_l3_parity l3_parity;
992 * HTI (aka HDPORT) state read during initial hw readout. Most
993 * platforms don't have HTI, so this will just stay 0. Those that do
994 * will use this later to figure out which PLLs and PHYs are unavailable
1001 * Cannot be determined by PCIID. You must always read a register.
1005 struct i915_power_domains power_domains;
1007 struct i915_gpu_error gpu_error;
1009 struct drm_i915_gem_object *vlv_pctx;
1011 /* list of fbdev register on this device */
1012 struct intel_fbdev *fbdev;
1013 struct work_struct fbdev_suspend_work;
1015 struct drm_property *broadcast_rgb_property;
1016 struct drm_property *force_audio_property;
1018 /* hda/i915 audio component */
1019 struct i915_audio_component *audio_component;
1020 bool audio_component_registered;
1022 * av_mutex - mutex for audio/video sync
1025 struct mutex av_mutex;
1026 int audio_power_refcount;
1027 u32 audio_freq_cntrl;
1031 /* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
1032 u32 chv_phy_control;
1034 * Shadows for CHV DPLL_MD regs to keep the state
1035 * checker somewhat working in the presence hardware
1036 * crappiness (can't read out DPLL_MD for pipes B & C).
1038 u32 chv_dpll_md[I915_MAX_PIPES];
1042 bool power_domains_suspended;
1043 struct i915_suspend_saved_registers regfile;
1044 struct vlv_s0ix_state *vlv_s0ix_state;
1047 I915_SAGV_UNKNOWN = 0,
1050 I915_SAGV_NOT_CONTROLLED
1053 u32 sagv_block_time_us;
1057 * Raw watermark latency values:
1058 * in 0.1us units for WM0,
1059 * in 0.5us units for WM1+.
1068 * Raw watermark memory latency values
1069 * for SKL for all 8 levels
1074 /* current hardware state */
1076 struct ilk_wm_values hw;
1077 struct vlv_wm_values vlv;
1078 struct g4x_wm_values g4x;
1084 * Should be held around atomic WM register writing; also
1085 * protects * intel_crtc->wm.active and
1086 * crtc_state->wm.need_postvbl_update.
1088 struct mutex wm_mutex;
1092 bool wm_lv_0_adjust_needed;
1094 bool symmetric_memory;
1095 enum intel_dram_type {
1107 struct intel_bw_info {
1108 /* for each QGV point */
1109 unsigned int deratedbw[I915_NUM_QGV_POINTS];
1114 struct intel_global_obj bw_obj;
1116 struct intel_runtime_pm runtime_pm;
1118 struct i915_perf perf;
1120 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1124 struct i915_gem_contexts {
1125 spinlock_t lock; /* locks list */
1126 struct list_head list;
1130 * We replace the local file with a global mappings as the
1131 * backing storage for the mmap is on the device and not
1132 * on the struct file, and we do not want to prolong the
1133 * lifetime of the local fd. To minimise the number of
1134 * anonymous inodes we create, we use a global singleton to
1135 * share the global mapping.
1137 struct file *mmap_singleton;
1140 u8 framestart_delay;
1144 /* For i915gm/i945gm vblank irq workaround */
1147 /* perform PHY state sanity checks? */
1148 bool chv_phy_assert[2];
1152 /* Used to save the pipe-to-encoder mapping for audio */
1153 struct intel_encoder *av_enc_map[I915_MAX_PIPES];
1155 /* necessary resource sharing with HDMI LPE audio driver. */
1157 struct platform_device *platdev;
1161 struct i915_pmu pmu;
1163 struct i915_hdcp_comp_master *hdcp_master;
1164 bool hdcp_comp_added;
1166 /* Mutex to protect the above hdcp component related values. */
1167 struct mutex hdcp_comp_mutex;
1169 I915_SELFTEST_DECLARE(struct i915_selftest_stash selftest;)
1172 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1173 * will be rejected. Instead look for a better place.
1177 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1179 return container_of(dev, struct drm_i915_private, drm);
1182 static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
1184 return dev_get_drvdata(kdev);
1187 static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
1189 return pci_get_drvdata(pdev);
1192 /* Simple iterator over all initialised engines */
1193 #define for_each_engine(engine__, dev_priv__, id__) \
1195 (id__) < I915_NUM_ENGINES; \
1197 for_each_if ((engine__) = (dev_priv__)->engine[(id__)])
1199 /* Iterator over subset of engines selected by mask */
1200 #define for_each_engine_masked(engine__, gt__, mask__, tmp__) \
1201 for ((tmp__) = (mask__) & (gt__)->info.engine_mask; \
1203 ((engine__) = (gt__)->engine[__mask_next_bit(tmp__)]), 1 : \
1206 #define rb_to_uabi_engine(rb) \
1207 rb_entry_safe(rb, struct intel_engine_cs, uabi_node)
1209 #define for_each_uabi_engine(engine__, i915__) \
1210 for ((engine__) = rb_to_uabi_engine(rb_first(&(i915__)->uabi_engines));\
1212 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1214 #define for_each_uabi_class_engine(engine__, class__, i915__) \
1215 for ((engine__) = intel_engine_lookup_user((i915__), (class__), 0); \
1216 (engine__) && (engine__)->uabi_class == (class__); \
1217 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1219 #define I915_GTT_OFFSET_NONE ((u32)-1)
1222 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1223 * considered to be the frontbuffer for the given plane interface-wise. This
1224 * doesn't mean that the hw necessarily already scans it out, but that any
1225 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1227 * We have one bit per pipe and per scanout plane type.
1229 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
1230 #define INTEL_FRONTBUFFER(pipe, plane_id) ({ \
1231 BUILD_BUG_ON(INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES > 32); \
1232 BUILD_BUG_ON(I915_MAX_PLANES > INTEL_FRONTBUFFER_BITS_PER_PIPE); \
1233 BIT((plane_id) + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)); \
1235 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1236 BIT(INTEL_FRONTBUFFER_BITS_PER_PIPE - 1 + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1237 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1238 GENMASK(INTEL_FRONTBUFFER_BITS_PER_PIPE * ((pipe) + 1) - 1, \
1239 INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1241 #define INTEL_INFO(dev_priv) (&(dev_priv)->__info)
1242 #define RUNTIME_INFO(dev_priv) (&(dev_priv)->__runtime)
1243 #define DRIVER_CAPS(dev_priv) (&(dev_priv)->caps)
1245 #define INTEL_DEVID(dev_priv) (RUNTIME_INFO(dev_priv)->device_id)
1248 * Deprecated: this will be replaced by individual IP checks:
1249 * GRAPHICS_VER(), MEDIA_VER() and DISPLAY_VER()
1251 #define INTEL_GEN(dev_priv) GRAPHICS_VER(dev_priv)
1253 * Deprecated: use IS_GRAPHICS_VER(), IS_MEDIA_VER() and IS_DISPLAY_VER() as
1256 #define IS_GEN_RANGE(dev_priv, s, e) IS_GRAPHICS_VER(dev_priv, (s), (e))
1258 * Deprecated: use GRAPHICS_VER(), MEDIA_VER() and DISPLAY_VER() as appropriate.
1260 #define IS_GEN(dev_priv, n) (GRAPHICS_VER(dev_priv) == (n))
1262 #define GRAPHICS_VER(i915) (INTEL_INFO(i915)->graphics_ver)
1263 #define IS_GRAPHICS_VER(i915, from, until) \
1264 (GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
1266 #define MEDIA_VER(i915) (INTEL_INFO(i915)->media_ver)
1267 #define IS_MEDIA_VER(i915, from, until) \
1268 (MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
1270 #define DISPLAY_VER(i915) (INTEL_INFO(i915)->display.ver)
1271 #define IS_DISPLAY_VER(i915, from, until) \
1272 (DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))
1274 #define REVID_FOREVER 0xff
1275 #define INTEL_REVID(dev_priv) (to_pci_dev((dev_priv)->drm.dev)->revision)
1277 #define HAS_DSB(dev_priv) (INTEL_INFO(dev_priv)->display.has_dsb)
1280 * Return true if revision is in range [since,until] inclusive.
1282 * Use 0 for open-ended since, and REVID_FOREVER for open-ended until.
1284 #define IS_REVID(p, since, until) \
1285 (INTEL_REVID(p) >= (since) && INTEL_REVID(p) <= (until))
1287 #define INTEL_DISPLAY_STEP(__i915) (RUNTIME_INFO(__i915)->step.display_step)
1288 #define INTEL_GT_STEP(__i915) (RUNTIME_INFO(__i915)->step.gt_step)
1290 #define IS_DISPLAY_STEP(__i915, since, until) \
1291 (drm_WARN_ON(&(__i915)->drm, INTEL_DISPLAY_STEP(__i915) == STEP_NONE), \
1292 INTEL_DISPLAY_STEP(__i915) >= (since) && INTEL_DISPLAY_STEP(__i915) <= (until))
1294 #define IS_GT_STEP(__i915, since, until) \
1295 (drm_WARN_ON(&(__i915)->drm, INTEL_GT_STEP(__i915) == STEP_NONE), \
1296 INTEL_GT_STEP(__i915) >= (since) && INTEL_GT_STEP(__i915) <= (until))
1298 static __always_inline unsigned int
1299 __platform_mask_index(const struct intel_runtime_info *info,
1300 enum intel_platform p)
1302 const unsigned int pbits =
1303 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1305 /* Expand the platform_mask array if this fails. */
1306 BUILD_BUG_ON(INTEL_MAX_PLATFORMS >
1307 pbits * ARRAY_SIZE(info->platform_mask));
1312 static __always_inline unsigned int
1313 __platform_mask_bit(const struct intel_runtime_info *info,
1314 enum intel_platform p)
1316 const unsigned int pbits =
1317 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1319 return p % pbits + INTEL_SUBPLATFORM_BITS;
1323 intel_subplatform(const struct intel_runtime_info *info, enum intel_platform p)
1325 const unsigned int pi = __platform_mask_index(info, p);
1327 return info->platform_mask[pi] & INTEL_SUBPLATFORM_MASK;
1330 static __always_inline bool
1331 IS_PLATFORM(const struct drm_i915_private *i915, enum intel_platform p)
1333 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1334 const unsigned int pi = __platform_mask_index(info, p);
1335 const unsigned int pb = __platform_mask_bit(info, p);
1337 BUILD_BUG_ON(!__builtin_constant_p(p));
1339 return info->platform_mask[pi] & BIT(pb);
1342 static __always_inline bool
1343 IS_SUBPLATFORM(const struct drm_i915_private *i915,
1344 enum intel_platform p, unsigned int s)
1346 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1347 const unsigned int pi = __platform_mask_index(info, p);
1348 const unsigned int pb = __platform_mask_bit(info, p);
1349 const unsigned int msb = BITS_PER_TYPE(info->platform_mask[0]) - 1;
1350 const u32 mask = info->platform_mask[pi];
1352 BUILD_BUG_ON(!__builtin_constant_p(p));
1353 BUILD_BUG_ON(!__builtin_constant_p(s));
1354 BUILD_BUG_ON((s) >= INTEL_SUBPLATFORM_BITS);
1356 /* Shift and test on the MSB position so sign flag can be used. */
1357 return ((mask << (msb - pb)) & (mask << (msb - s))) & BIT(msb);
1360 #define IS_MOBILE(dev_priv) (INTEL_INFO(dev_priv)->is_mobile)
1361 #define IS_DGFX(dev_priv) (INTEL_INFO(dev_priv)->is_dgfx)
1363 #define IS_I830(dev_priv) IS_PLATFORM(dev_priv, INTEL_I830)
1364 #define IS_I845G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I845G)
1365 #define IS_I85X(dev_priv) IS_PLATFORM(dev_priv, INTEL_I85X)
1366 #define IS_I865G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I865G)
1367 #define IS_I915G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915G)
1368 #define IS_I915GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915GM)
1369 #define IS_I945G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945G)
1370 #define IS_I945GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945GM)
1371 #define IS_I965G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965G)
1372 #define IS_I965GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965GM)
1373 #define IS_G45(dev_priv) IS_PLATFORM(dev_priv, INTEL_G45)
1374 #define IS_GM45(dev_priv) IS_PLATFORM(dev_priv, INTEL_GM45)
1375 #define IS_G4X(dev_priv) (IS_G45(dev_priv) || IS_GM45(dev_priv))
1376 #define IS_PINEVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_PINEVIEW)
1377 #define IS_G33(dev_priv) IS_PLATFORM(dev_priv, INTEL_G33)
1378 #define IS_IRONLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IRONLAKE)
1379 #define IS_IRONLAKE_M(dev_priv) \
1380 (IS_PLATFORM(dev_priv, INTEL_IRONLAKE) && IS_MOBILE(dev_priv))
1381 #define IS_SANDYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SANDYBRIDGE)
1382 #define IS_IVYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IVYBRIDGE)
1383 #define IS_IVB_GT1(dev_priv) (IS_IVYBRIDGE(dev_priv) && \
1384 INTEL_INFO(dev_priv)->gt == 1)
1385 #define IS_VALLEYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_VALLEYVIEW)
1386 #define IS_CHERRYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_CHERRYVIEW)
1387 #define IS_HASWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_HASWELL)
1388 #define IS_BROADWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROADWELL)
1389 #define IS_SKYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SKYLAKE)
1390 #define IS_BROXTON(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROXTON)
1391 #define IS_KABYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_KABYLAKE)
1392 #define IS_GEMINILAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_GEMINILAKE)
1393 #define IS_COFFEELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COFFEELAKE)
1394 #define IS_COMETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COMETLAKE)
1395 #define IS_CANNONLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_CANNONLAKE)
1396 #define IS_ICELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ICELAKE)
1397 #define IS_JSL_EHL(dev_priv) (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE) || \
1398 IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
1399 #define IS_TIGERLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_TIGERLAKE)
1400 #define IS_ROCKETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)
1401 #define IS_DG1(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG1)
1402 #define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S)
1403 #define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \
1404 (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00)
1405 #define IS_BDW_ULT(dev_priv) \
1406 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULT)
1407 #define IS_BDW_ULX(dev_priv) \
1408 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULX)
1409 #define IS_BDW_GT3(dev_priv) (IS_BROADWELL(dev_priv) && \
1410 INTEL_INFO(dev_priv)->gt == 3)
1411 #define IS_HSW_ULT(dev_priv) \
1412 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULT)
1413 #define IS_HSW_GT3(dev_priv) (IS_HASWELL(dev_priv) && \
1414 INTEL_INFO(dev_priv)->gt == 3)
1415 #define IS_HSW_GT1(dev_priv) (IS_HASWELL(dev_priv) && \
1416 INTEL_INFO(dev_priv)->gt == 1)
1417 /* ULX machines are also considered ULT. */
1418 #define IS_HSW_ULX(dev_priv) \
1419 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULX)
1420 #define IS_SKL_ULT(dev_priv) \
1421 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULT)
1422 #define IS_SKL_ULX(dev_priv) \
1423 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULX)
1424 #define IS_KBL_ULT(dev_priv) \
1425 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULT)
1426 #define IS_KBL_ULX(dev_priv) \
1427 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULX)
1428 #define IS_SKL_GT2(dev_priv) (IS_SKYLAKE(dev_priv) && \
1429 INTEL_INFO(dev_priv)->gt == 2)
1430 #define IS_SKL_GT3(dev_priv) (IS_SKYLAKE(dev_priv) && \
1431 INTEL_INFO(dev_priv)->gt == 3)
1432 #define IS_SKL_GT4(dev_priv) (IS_SKYLAKE(dev_priv) && \
1433 INTEL_INFO(dev_priv)->gt == 4)
1434 #define IS_KBL_GT2(dev_priv) (IS_KABYLAKE(dev_priv) && \
1435 INTEL_INFO(dev_priv)->gt == 2)
1436 #define IS_KBL_GT3(dev_priv) (IS_KABYLAKE(dev_priv) && \
1437 INTEL_INFO(dev_priv)->gt == 3)
1438 #define IS_CFL_ULT(dev_priv) \
1439 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULT)
1440 #define IS_CFL_ULX(dev_priv) \
1441 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULX)
1442 #define IS_CFL_GT2(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1443 INTEL_INFO(dev_priv)->gt == 2)
1444 #define IS_CFL_GT3(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1445 INTEL_INFO(dev_priv)->gt == 3)
1447 #define IS_CML_ULT(dev_priv) \
1448 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULT)
1449 #define IS_CML_ULX(dev_priv) \
1450 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULX)
1451 #define IS_CML_GT2(dev_priv) (IS_COMETLAKE(dev_priv) && \
1452 INTEL_INFO(dev_priv)->gt == 2)
1454 #define IS_CNL_WITH_PORT_F(dev_priv) \
1455 IS_SUBPLATFORM(dev_priv, INTEL_CANNONLAKE, INTEL_SUBPLATFORM_PORTF)
1456 #define IS_ICL_WITH_PORT_F(dev_priv) \
1457 IS_SUBPLATFORM(dev_priv, INTEL_ICELAKE, INTEL_SUBPLATFORM_PORTF)
1459 #define IS_TGL_U(dev_priv) \
1460 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULT)
1462 #define IS_TGL_Y(dev_priv) \
1463 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULX)
1465 #define SKL_REVID_A0 0x0
1466 #define SKL_REVID_B0 0x1
1467 #define SKL_REVID_C0 0x2
1468 #define SKL_REVID_D0 0x3
1469 #define SKL_REVID_E0 0x4
1470 #define SKL_REVID_F0 0x5
1471 #define SKL_REVID_G0 0x6
1472 #define SKL_REVID_H0 0x7
1474 #define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until))
1476 #define BXT_REVID_A0 0x0
1477 #define BXT_REVID_A1 0x1
1478 #define BXT_REVID_B0 0x3
1479 #define BXT_REVID_B_LAST 0x8
1480 #define BXT_REVID_C0 0x9
1482 #define IS_BXT_REVID(dev_priv, since, until) \
1483 (IS_BROXTON(dev_priv) && IS_REVID(dev_priv, since, until))
1485 #define IS_KBL_GT_STEP(dev_priv, since, until) \
1486 (IS_KABYLAKE(dev_priv) && IS_GT_STEP(dev_priv, since, until))
1487 #define IS_KBL_DISPLAY_STEP(dev_priv, since, until) \
1488 (IS_KABYLAKE(dev_priv) && IS_DISPLAY_STEP(dev_priv, since, until))
1490 #define GLK_REVID_A0 0x0
1491 #define GLK_REVID_A1 0x1
1492 #define GLK_REVID_A2 0x2
1493 #define GLK_REVID_B0 0x3
1495 #define IS_GLK_REVID(dev_priv, since, until) \
1496 (IS_GEMINILAKE(dev_priv) && IS_REVID(dev_priv, since, until))
1498 #define CNL_REVID_A0 0x0
1499 #define CNL_REVID_B0 0x1
1500 #define CNL_REVID_C0 0x2
1502 #define IS_CNL_REVID(p, since, until) \
1503 (IS_CANNONLAKE(p) && IS_REVID(p, since, until))
1505 #define ICL_REVID_A0 0x0
1506 #define ICL_REVID_A2 0x1
1507 #define ICL_REVID_B0 0x3
1508 #define ICL_REVID_B2 0x4
1509 #define ICL_REVID_C0 0x5
1511 #define IS_ICL_REVID(p, since, until) \
1512 (IS_ICELAKE(p) && IS_REVID(p, since, until))
1514 #define EHL_REVID_A0 0x0
1515 #define EHL_REVID_B0 0x1
1517 #define IS_JSL_EHL_REVID(p, since, until) \
1518 (IS_JSL_EHL(p) && IS_REVID(p, since, until))
1520 #define IS_TGL_DISPLAY_STEP(__i915, since, until) \
1521 (IS_TIGERLAKE(__i915) && \
1522 IS_DISPLAY_STEP(__i915, since, until))
1524 #define IS_TGL_UY_GT_STEP(__i915, since, until) \
1525 ((IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1526 IS_GT_STEP(__i915, since, until))
1528 #define IS_TGL_GT_STEP(__i915, since, until) \
1529 (IS_TIGERLAKE(__i915) && !(IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
1530 IS_GT_STEP(__i915, since, until))
1532 #define RKL_REVID_A0 0x0
1533 #define RKL_REVID_B0 0x1
1534 #define RKL_REVID_C0 0x4
1536 #define IS_RKL_REVID(p, since, until) \
1537 (IS_ROCKETLAKE(p) && IS_REVID(p, since, until))
1539 #define DG1_REVID_A0 0x0
1540 #define DG1_REVID_B0 0x1
1542 #define IS_DG1_REVID(p, since, until) \
1543 (IS_DG1(p) && IS_REVID(p, since, until))
1545 #define IS_ADLS_DISPLAY_STEP(__i915, since, until) \
1546 (IS_ALDERLAKE_S(__i915) && \
1547 IS_DISPLAY_STEP(__i915, since, until))
1549 #define IS_ADLS_GT_STEP(__i915, since, until) \
1550 (IS_ALDERLAKE_S(__i915) && \
1551 IS_GT_STEP(__i915, since, until))
1553 #define IS_LP(dev_priv) (INTEL_INFO(dev_priv)->is_lp)
1554 #define IS_GEN9_LP(dev_priv) (IS_GEN(dev_priv, 9) && IS_LP(dev_priv))
1555 #define IS_GEN9_BC(dev_priv) (IS_GEN(dev_priv, 9) && !IS_LP(dev_priv))
1557 #define __HAS_ENGINE(engine_mask, id) ((engine_mask) & BIT(id))
1558 #define HAS_ENGINE(gt, id) __HAS_ENGINE((gt)->info.engine_mask, id)
1560 #define ENGINE_INSTANCES_MASK(gt, first, count) ({ \
1561 unsigned int first__ = (first); \
1562 unsigned int count__ = (count); \
1563 ((gt)->info.engine_mask & \
1564 GENMASK(first__ + count__ - 1, first__)) >> first__; \
1566 #define VDBOX_MASK(gt) \
1567 ENGINE_INSTANCES_MASK(gt, VCS0, I915_MAX_VCS)
1568 #define VEBOX_MASK(gt) \
1569 ENGINE_INSTANCES_MASK(gt, VECS0, I915_MAX_VECS)
1572 * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
1573 * All later gens can run the final buffer from the ppgtt
1575 #define CMDPARSER_USES_GGTT(dev_priv) IS_GEN(dev_priv, 7)
1577 #define HAS_LLC(dev_priv) (INTEL_INFO(dev_priv)->has_llc)
1578 #define HAS_SNOOP(dev_priv) (INTEL_INFO(dev_priv)->has_snoop)
1579 #define HAS_EDRAM(dev_priv) ((dev_priv)->edram_size_mb)
1580 #define HAS_SECURE_BATCHES(dev_priv) (INTEL_GEN(dev_priv) < 6)
1581 #define HAS_WT(dev_priv) HAS_EDRAM(dev_priv)
1583 #define HWS_NEEDS_PHYSICAL(dev_priv) (INTEL_INFO(dev_priv)->hws_needs_physical)
1585 #define HAS_LOGICAL_RING_CONTEXTS(dev_priv) \
1586 (INTEL_INFO(dev_priv)->has_logical_ring_contexts)
1587 #define HAS_LOGICAL_RING_ELSQ(dev_priv) \
1588 (INTEL_INFO(dev_priv)->has_logical_ring_elsq)
1590 #define HAS_MASTER_UNIT_IRQ(dev_priv) (INTEL_INFO(dev_priv)->has_master_unit_irq)
1592 #define HAS_EXECLISTS(dev_priv) HAS_LOGICAL_RING_CONTEXTS(dev_priv)
1594 #define INTEL_PPGTT(dev_priv) (INTEL_INFO(dev_priv)->ppgtt_type)
1595 #define HAS_PPGTT(dev_priv) \
1596 (INTEL_PPGTT(dev_priv) != INTEL_PPGTT_NONE)
1597 #define HAS_FULL_PPGTT(dev_priv) \
1598 (INTEL_PPGTT(dev_priv) >= INTEL_PPGTT_FULL)
1600 #define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
1601 GEM_BUG_ON((sizes) == 0); \
1602 ((sizes) & ~INTEL_INFO(dev_priv)->page_sizes) == 0; \
1605 #define HAS_OVERLAY(dev_priv) (INTEL_INFO(dev_priv)->display.has_overlay)
1606 #define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
1607 (INTEL_INFO(dev_priv)->display.overlay_needs_physical)
1609 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1610 #define HAS_BROKEN_CS_TLB(dev_priv) (IS_I830(dev_priv) || IS_I845G(dev_priv))
1612 #define NEEDS_RC6_CTX_CORRUPTION_WA(dev_priv) \
1613 (IS_BROADWELL(dev_priv) || IS_GEN(dev_priv, 9))
1615 /* WaRsDisableCoarsePowerGating:skl,cnl */
1616 #define NEEDS_WaRsDisableCoarsePowerGating(dev_priv) \
1617 (IS_CANNONLAKE(dev_priv) || \
1618 IS_SKL_GT3(dev_priv) || \
1619 IS_SKL_GT4(dev_priv))
1621 #define HAS_GMBUS_IRQ(dev_priv) (INTEL_GEN(dev_priv) >= 4)
1622 #define HAS_GMBUS_BURST_READ(dev_priv) (INTEL_GEN(dev_priv) >= 10 || \
1623 IS_GEMINILAKE(dev_priv) || \
1624 IS_KABYLAKE(dev_priv))
1626 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1627 * rows, which changed the alignment requirements and fence programming.
1629 #define HAS_128_BYTE_Y_TILING(dev_priv) (!IS_GEN(dev_priv, 2) && \
1630 !(IS_I915G(dev_priv) || \
1631 IS_I915GM(dev_priv)))
1632 #define SUPPORTS_TV(dev_priv) (INTEL_INFO(dev_priv)->display.supports_tv)
1633 #define I915_HAS_HOTPLUG(dev_priv) (INTEL_INFO(dev_priv)->display.has_hotplug)
1635 #define HAS_FW_BLC(dev_priv) (INTEL_GEN(dev_priv) > 2)
1636 #define HAS_FBC(dev_priv) (INTEL_INFO(dev_priv)->display.has_fbc)
1637 #define HAS_CUR_FBC(dev_priv) (!HAS_GMCH(dev_priv) && INTEL_GEN(dev_priv) >= 7)
1639 #define HAS_IPS(dev_priv) (IS_HSW_ULT(dev_priv) || IS_BROADWELL(dev_priv))
1641 #define HAS_DP_MST(dev_priv) (INTEL_INFO(dev_priv)->display.has_dp_mst)
1643 #define HAS_DDI(dev_priv) (INTEL_INFO(dev_priv)->display.has_ddi)
1644 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
1645 #define HAS_PSR(dev_priv) (INTEL_INFO(dev_priv)->display.has_psr)
1646 #define HAS_PSR_HW_TRACKING(dev_priv) \
1647 (INTEL_INFO(dev_priv)->display.has_psr_hw_tracking)
1648 #define HAS_PSR2_SEL_FETCH(dev_priv) (INTEL_GEN(dev_priv) >= 12)
1649 #define HAS_TRANSCODER(dev_priv, trans) ((INTEL_INFO(dev_priv)->cpu_transcoder_mask & BIT(trans)) != 0)
1651 #define HAS_RC6(dev_priv) (INTEL_INFO(dev_priv)->has_rc6)
1652 #define HAS_RC6p(dev_priv) (INTEL_INFO(dev_priv)->has_rc6p)
1653 #define HAS_RC6pp(dev_priv) (false) /* HW was never validated */
1655 #define HAS_RPS(dev_priv) (INTEL_INFO(dev_priv)->has_rps)
1657 #define HAS_CSR(dev_priv) (INTEL_INFO(dev_priv)->display.has_csr)
1659 #define HAS_MSO(i915) (INTEL_GEN(i915) >= 12)
1661 #define HAS_RUNTIME_PM(dev_priv) (INTEL_INFO(dev_priv)->has_runtime_pm)
1662 #define HAS_64BIT_RELOC(dev_priv) (INTEL_INFO(dev_priv)->has_64bit_reloc)
1664 #define HAS_IPC(dev_priv) (INTEL_INFO(dev_priv)->display.has_ipc)
1666 #define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i))
1667 #define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM)
1669 #define HAS_GT_UC(dev_priv) (INTEL_INFO(dev_priv)->has_gt_uc)
1671 #define HAS_POOLED_EU(dev_priv) (INTEL_INFO(dev_priv)->has_pooled_eu)
1673 #define HAS_GLOBAL_MOCS_REGISTERS(dev_priv) (INTEL_INFO(dev_priv)->has_global_mocs)
1676 #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)
1678 #define HAS_LSPCON(dev_priv) (IS_GEN_RANGE(dev_priv, 9, 10))
1680 /* DPF == dynamic parity feature */
1681 #define HAS_L3_DPF(dev_priv) (INTEL_INFO(dev_priv)->has_l3_dpf)
1682 #define NUM_L3_SLICES(dev_priv) (IS_HSW_GT3(dev_priv) ? \
1683 2 : HAS_L3_DPF(dev_priv))
1685 #define GT_FREQUENCY_MULTIPLIER 50
1686 #define GEN9_FREQ_SCALER 3
1688 #define INTEL_NUM_PIPES(dev_priv) (hweight8(INTEL_INFO(dev_priv)->pipe_mask))
1690 #define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->pipe_mask != 0)
1692 #define HAS_VRR(i915) (INTEL_GEN(i915) >= 12)
1694 /* Only valid when HAS_DISPLAY() is true */
1695 #define INTEL_DISPLAY_ENABLED(dev_priv) \
1696 (drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
1698 static inline bool run_as_guest(void)
1700 return !hypervisor_is_type(X86_HYPER_NATIVE);
1703 #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \
1704 IS_ALDERLAKE_S(dev_priv))
1706 static inline bool intel_vtd_active(void)
1708 #ifdef CONFIG_INTEL_IOMMU
1709 if (intel_iommu_gfx_mapped)
1713 /* Running as a guest, we assume the host is enforcing VT'd */
1714 return run_as_guest();
1717 static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
1719 return INTEL_GEN(dev_priv) >= 6 && intel_vtd_active();
1723 intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *dev_priv)
1725 return IS_BROXTON(dev_priv) && intel_vtd_active();
1729 extern const struct dev_pm_ops i915_pm_ops;
1731 int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
1732 void i915_driver_remove(struct drm_i915_private *i915);
1733 void i915_driver_shutdown(struct drm_i915_private *i915);
1735 int i915_resume_switcheroo(struct drm_i915_private *i915);
1736 int i915_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state);
1738 int i915_getparam_ioctl(struct drm_device *dev, void *data,
1739 struct drm_file *file_priv);
1742 int i915_gem_init_userptr(struct drm_i915_private *dev_priv);
1743 void i915_gem_cleanup_userptr(struct drm_i915_private *dev_priv);
1744 void i915_gem_init_early(struct drm_i915_private *dev_priv);
1745 void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);
1747 struct intel_memory_region *i915_gem_shmem_setup(struct drm_i915_private *i915);
1749 static inline void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
1752 * A single pass should suffice to release all the freed objects (along
1753 * most call paths) , but be a little more paranoid in that freeing
1754 * the objects does take a little amount of time, during which the rcu
1755 * callbacks could have added new objects into the freed list, and
1756 * armed the work again.
1758 while (atomic_read(&i915->mm.free_count)) {
1759 flush_work(&i915->mm.free_work);
1764 static inline void i915_gem_drain_workqueue(struct drm_i915_private *i915)
1767 * Similar to objects above (see i915_gem_drain_freed-objects), in
1768 * general we have workers that are armed by RCU and then rearm
1769 * themselves in their callbacks. To be paranoid, we need to
1770 * drain the workqueue a second time after waiting for the RCU
1771 * grace period so that we catch work queued via RCU from the first
1772 * pass. As neither drain_workqueue() nor flush_workqueue() report
1773 * a result, we make an assumption that we only don't require more
1774 * than 3 passes to catch all _recursive_ RCU delayed work.
1779 flush_workqueue(i915->wq);
1781 i915_gem_drain_freed_objects(i915);
1783 drain_workqueue(i915->wq);
1786 struct i915_vma * __must_check
1787 i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
1788 struct i915_gem_ww_ctx *ww,
1789 const struct i915_ggtt_view *view,
1790 u64 size, u64 alignment, u64 flags);
1792 static inline struct i915_vma * __must_check
1793 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
1794 const struct i915_ggtt_view *view,
1795 u64 size, u64 alignment, u64 flags)
1797 return i915_gem_object_ggtt_pin_ww(obj, NULL, view, size, alignment, flags);
1800 int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
1801 unsigned long flags);
1802 #define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
1803 #define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
1804 #define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
1806 void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);
1808 int i915_gem_dumb_create(struct drm_file *file_priv,
1809 struct drm_device *dev,
1810 struct drm_mode_create_dumb *args);
1812 int __must_check i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno);
1814 static inline u32 i915_reset_count(struct i915_gpu_error *error)
1816 return atomic_read(&error->reset_count);
1819 static inline u32 i915_reset_engine_count(struct i915_gpu_error *error,
1820 const struct intel_engine_cs *engine)
1822 return atomic_read(&error->reset_engine_count[engine->uabi_class]);
1825 int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
1826 void i915_gem_driver_register(struct drm_i915_private *i915);
1827 void i915_gem_driver_unregister(struct drm_i915_private *i915);
1828 void i915_gem_driver_remove(struct drm_i915_private *dev_priv);
1829 void i915_gem_driver_release(struct drm_i915_private *dev_priv);
1830 void i915_gem_suspend(struct drm_i915_private *dev_priv);
1831 void i915_gem_suspend_late(struct drm_i915_private *dev_priv);
1832 void i915_gem_resume(struct drm_i915_private *dev_priv);
1834 int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
1836 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1837 enum i915_cache_level cache_level);
1839 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1840 struct dma_buf *dma_buf);
1842 struct dma_buf *i915_gem_prime_export(struct drm_gem_object *gem_obj, int flags);
1844 static inline struct i915_gem_context *
1845 __i915_gem_context_lookup_rcu(struct drm_i915_file_private *file_priv, u32 id)
1847 return xa_load(&file_priv->context_xa, id);
1850 static inline struct i915_gem_context *
1851 i915_gem_context_lookup(struct drm_i915_file_private *file_priv, u32 id)
1853 struct i915_gem_context *ctx;
1856 ctx = __i915_gem_context_lookup_rcu(file_priv, id);
1857 if (ctx && !kref_get_unless_zero(&ctx->ref))
1864 /* i915_gem_evict.c */
1865 int __must_check i915_gem_evict_something(struct i915_address_space *vm,
1866 u64 min_size, u64 alignment,
1867 unsigned long color,
1870 int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
1871 struct drm_mm_node *node,
1872 unsigned int flags);
1873 int i915_gem_evict_vm(struct i915_address_space *vm);
1875 /* i915_gem_internal.c */
1876 struct drm_i915_gem_object *
1877 i915_gem_object_create_internal(struct drm_i915_private *dev_priv,
1880 /* i915_gem_tiling.c */
1881 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1883 struct drm_i915_private *i915 = to_i915(obj->base.dev);
1885 return i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1886 i915_gem_object_is_tiled(obj);
1889 u32 i915_gem_fence_size(struct drm_i915_private *dev_priv, u32 size,
1890 unsigned int tiling, unsigned int stride);
1891 u32 i915_gem_fence_alignment(struct drm_i915_private *dev_priv, u32 size,
1892 unsigned int tiling, unsigned int stride);
1894 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
1896 /* i915_cmd_parser.c */
1897 int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv);
1898 int intel_engine_init_cmd_parser(struct intel_engine_cs *engine);
1899 void intel_engine_cleanup_cmd_parser(struct intel_engine_cs *engine);
1900 unsigned long *intel_engine_cmd_parser_alloc_jump_whitelist(u32 batch_length,
1903 int intel_engine_cmd_parser(struct intel_engine_cs *engine,
1904 struct i915_vma *batch,
1905 unsigned long batch_offset,
1906 unsigned long batch_length,
1907 struct i915_vma *shadow,
1908 unsigned long *jump_whitelist,
1910 const void *batch_map);
1911 #define I915_CMD_PARSER_TRAMPOLINE_SIZE 8
1913 /* intel_device_info.c */
1914 static inline struct intel_device_info *
1915 mkwrite_device_info(struct drm_i915_private *dev_priv)
1917 return (struct intel_device_info *)INTEL_INFO(dev_priv);
1920 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
1921 struct drm_file *file);
1924 int remap_io_mapping(struct vm_area_struct *vma,
1925 unsigned long addr, unsigned long pfn, unsigned long size,
1926 struct io_mapping *iomap);
1927 int remap_io_sg(struct vm_area_struct *vma,
1928 unsigned long addr, unsigned long size,
1929 struct scatterlist *sgl, resource_size_t iobase);
1931 static inline int intel_hws_csb_write_index(struct drm_i915_private *i915)
1933 if (INTEL_GEN(i915) >= 10)
1934 return CNL_HWS_CSB_WRITE_INDEX;
1936 return I915_HWS_CSB_WRITE_INDEX;
1939 static inline enum i915_map_type
1940 i915_coherent_map_type(struct drm_i915_private *i915,
1941 struct drm_i915_gem_object *obj, bool always_coherent)
1943 if (i915_gem_object_is_lmem(obj))
1945 if (HAS_LLC(i915) || always_coherent)