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"
82 #include "gt/intel_engine.h"
83 #include "gt/intel_gt_types.h"
84 #include "gt/intel_region_lmem.h"
85 #include "gt/intel_workarounds.h"
86 #include "gt/uc/intel_uc.h"
88 #include "intel_device_info.h"
89 #include "intel_pch.h"
90 #include "intel_runtime_pm.h"
91 #include "intel_memory_region.h"
92 #include "intel_uncore.h"
93 #include "intel_wakeref.h"
94 #include "intel_wopcm.h"
97 #include "i915_gem_gtt.h"
98 #include "i915_gpu_error.h"
99 #include "i915_perf_types.h"
100 #include "i915_request.h"
101 #include "i915_scheduler.h"
102 #include "gt/intel_timeline.h"
103 #include "i915_vma.h"
104 #include "i915_irq.h"
107 /* General customization:
110 #define DRIVER_NAME "i915"
111 #define DRIVER_DESC "Intel Graphics"
112 #define DRIVER_DATE "20201103"
113 #define DRIVER_TIMESTAMP 1604406085
115 struct drm_i915_gem_object;
119 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
138 #define for_each_hpd_pin(__pin) \
139 for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
141 /* Threshold == 5 for long IRQs, 50 for short */
142 #define HPD_STORM_DEFAULT_THRESHOLD 50
144 struct i915_hotplug {
145 struct delayed_work hotplug_work;
147 const u32 *hpd, *pch_hpd;
150 unsigned long last_jiffies;
155 HPD_MARK_DISABLED = 2
157 } stats[HPD_NUM_PINS];
160 struct delayed_work reenable_work;
164 struct work_struct dig_port_work;
166 struct work_struct poll_init_work;
169 unsigned int hpd_storm_threshold;
170 /* Whether or not to count short HPD IRQs in HPD storms */
171 u8 hpd_short_storm_enabled;
174 * if we get a HPD irq from DP and a HPD irq from non-DP
175 * the non-DP HPD could block the workqueue on a mode config
176 * mutex getting, that userspace may have taken. However
177 * userspace is waiting on the DP workqueue to run which is
178 * blocked behind the non-DP one.
180 struct workqueue_struct *dp_wq;
183 #define I915_GEM_GPU_DOMAINS \
184 (I915_GEM_DOMAIN_RENDER | \
185 I915_GEM_DOMAIN_SAMPLER | \
186 I915_GEM_DOMAIN_COMMAND | \
187 I915_GEM_DOMAIN_INSTRUCTION | \
188 I915_GEM_DOMAIN_VERTEX)
190 struct drm_i915_private;
191 struct i915_mm_struct;
192 struct i915_mmu_object;
194 struct drm_i915_file_private {
195 struct drm_i915_private *dev_priv;
198 struct drm_file *file;
202 struct xarray context_xa;
205 unsigned int bsd_engine;
208 * Every context ban increments per client ban score. Also
209 * hangs in short succession increments ban score. If ban threshold
210 * is reached, client is considered banned and submitting more work
211 * will fail. This is a stop gap measure to limit the badly behaving
212 * clients access to gpu. Note that unbannable contexts never increment
213 * the client ban score.
215 #define I915_CLIENT_SCORE_HANG_FAST 1
216 #define I915_CLIENT_FAST_HANG_JIFFIES (60 * HZ)
217 #define I915_CLIENT_SCORE_CONTEXT_BAN 3
218 #define I915_CLIENT_SCORE_BANNED 9
219 /** ban_score: Accumulated score of all ctx bans and fast hangs. */
221 unsigned long hang_timestamp;
224 /* Interface history:
227 * 1.2: Add Power Management
228 * 1.3: Add vblank support
229 * 1.4: Fix cmdbuffer path, add heap destroy
230 * 1.5: Add vblank pipe configuration
231 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
232 * - Support vertical blank on secondary display pipe
234 #define DRIVER_MAJOR 1
235 #define DRIVER_MINOR 6
236 #define DRIVER_PATCHLEVEL 0
238 struct intel_overlay;
239 struct intel_overlay_error_state;
241 struct sdvo_device_mapping {
250 struct intel_connector;
251 struct intel_encoder;
252 struct intel_atomic_state;
253 struct intel_cdclk_config;
254 struct intel_cdclk_state;
255 struct intel_cdclk_vals;
256 struct intel_initial_plane_config;
261 struct drm_i915_display_funcs {
262 void (*get_cdclk)(struct drm_i915_private *dev_priv,
263 struct intel_cdclk_config *cdclk_config);
264 void (*set_cdclk)(struct drm_i915_private *dev_priv,
265 const struct intel_cdclk_config *cdclk_config,
267 int (*bw_calc_min_cdclk)(struct intel_atomic_state *state);
268 int (*get_fifo_size)(struct drm_i915_private *dev_priv,
269 enum i9xx_plane_id i9xx_plane);
270 int (*compute_pipe_wm)(struct intel_crtc_state *crtc_state);
271 int (*compute_intermediate_wm)(struct intel_crtc_state *crtc_state);
272 void (*initial_watermarks)(struct intel_atomic_state *state,
273 struct intel_crtc *crtc);
274 void (*atomic_update_watermarks)(struct intel_atomic_state *state,
275 struct intel_crtc *crtc);
276 void (*optimize_watermarks)(struct intel_atomic_state *state,
277 struct intel_crtc *crtc);
278 int (*compute_global_watermarks)(struct intel_atomic_state *state);
279 void (*update_wm)(struct intel_crtc *crtc);
280 int (*modeset_calc_cdclk)(struct intel_cdclk_state *state);
281 u8 (*calc_voltage_level)(int cdclk);
282 /* Returns the active state of the crtc, and if the crtc is active,
283 * fills out the pipe-config with the hw state. */
284 bool (*get_pipe_config)(struct intel_crtc *,
285 struct intel_crtc_state *);
286 void (*get_initial_plane_config)(struct intel_crtc *,
287 struct intel_initial_plane_config *);
288 int (*crtc_compute_clock)(struct intel_crtc *crtc,
289 struct intel_crtc_state *crtc_state);
290 void (*crtc_enable)(struct intel_atomic_state *state,
291 struct intel_crtc *crtc);
292 void (*crtc_disable)(struct intel_atomic_state *state,
293 struct intel_crtc *crtc);
294 void (*commit_modeset_enables)(struct intel_atomic_state *state);
295 void (*commit_modeset_disables)(struct intel_atomic_state *state);
296 void (*audio_codec_enable)(struct intel_encoder *encoder,
297 const struct intel_crtc_state *crtc_state,
298 const struct drm_connector_state *conn_state);
299 void (*audio_codec_disable)(struct intel_encoder *encoder,
300 const struct intel_crtc_state *old_crtc_state,
301 const struct drm_connector_state *old_conn_state);
302 void (*fdi_link_train)(struct intel_crtc *crtc,
303 const struct intel_crtc_state *crtc_state);
304 void (*init_clock_gating)(struct drm_i915_private *dev_priv);
305 void (*hpd_irq_setup)(struct drm_i915_private *dev_priv);
306 /* clock updates for mode set */
308 /* render clock increase/decrease */
309 /* display clock increase/decrease */
310 /* pll clock increase/decrease */
312 int (*color_check)(struct intel_crtc_state *crtc_state);
314 * Program double buffered color management registers during
315 * vblank evasion. The registers should then latch during the
316 * next vblank start, alongside any other double buffered registers
317 * involved with the same commit.
319 void (*color_commit)(const struct intel_crtc_state *crtc_state);
321 * Load LUTs (and other single buffered color management
322 * registers). Will (hopefully) be called during the vblank
323 * following the latching of any double buffered registers
324 * involved with the same commit.
326 void (*load_luts)(const struct intel_crtc_state *crtc_state);
327 void (*read_luts)(struct intel_crtc_state *crtc_state);
331 struct work_struct work;
333 u32 required_version;
334 u32 max_fw_size; /* bytes */
336 u32 dmc_fw_size; /* dwords */
339 i915_reg_t mmioaddr[20];
344 intel_wakeref_t wakeref;
347 enum i915_cache_level {
349 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
350 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
351 caches, eg sampler/render caches, and the
352 large Last-Level-Cache. LLC is coherent with
353 the CPU, but L3 is only visible to the GPU. */
354 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
357 #define I915_COLOR_UNEVICTABLE (-1) /* a non-vma sharing the address space */
360 /* This is always the inner lock when overlapping with struct_mutex and
361 * it's the outer lock when overlapping with stolen_lock. */
364 unsigned int possible_framebuffer_bits;
365 unsigned int busy_bits;
366 struct intel_crtc *crtc;
368 struct drm_mm_node compressed_fb;
369 struct drm_mm_node *compressed_llb;
377 bool underrun_detected;
378 struct work_struct underrun_work;
381 * Due to the atomic rules we can't access some structures without the
382 * appropriate locking, so we cache information here in order to avoid
385 struct intel_fbc_state_cache {
387 unsigned int mode_flags;
388 u32 hsw_bdw_pixel_rate;
392 unsigned int rotation;
397 * Display surface base address adjustement for
398 * pageflips. Note that on gen4+ this only adjusts up
399 * to a tile, offsets within a tile are handled in
400 * the hw itself (with the TILEOFF register).
405 u16 pixel_blend_mode;
409 const struct drm_format_info *format;
414 unsigned int fence_y_offset;
415 u16 gen9_wa_cfb_stride;
422 * This structure contains everything that's relevant to program the
423 * hardware registers. When we want to figure out if we need to disable
424 * and re-enable FBC for a new configuration we just check if there's
425 * something different in the struct. The genx_fbc_activate functions
426 * are supposed to read from it in order to program the registers.
428 struct intel_fbc_reg_params {
431 enum i9xx_plane_id i9xx_plane;
435 const struct drm_format_info *format;
441 unsigned int fence_y_offset;
442 u16 gen9_wa_cfb_stride;
448 const char *no_fbc_reason;
452 * HIGH_RR is the highest eDP panel refresh rate read from EDID
453 * LOW_RR is the lowest eDP panel refresh rate found from EDID
454 * parsing for same resolution.
456 enum drrs_refresh_rate_type {
459 DRRS_MAX_RR, /* RR count */
462 enum drrs_support_type {
463 DRRS_NOT_SUPPORTED = 0,
464 STATIC_DRRS_SUPPORT = 1,
465 SEAMLESS_DRRS_SUPPORT = 2
471 struct delayed_work work;
473 unsigned busy_frontbuffer_bits;
474 enum drrs_refresh_rate_type refresh_rate_type;
475 enum drrs_support_type type;
478 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
479 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
480 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
481 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
482 #define QUIRK_INCREASE_T12_DELAY (1<<6)
483 #define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
486 struct intel_fbc_work;
489 struct i2c_adapter adapter;
490 #define GMBUS_FORCE_BIT_RETRY (1U << 31)
494 struct i2c_algo_bit_data bit_algo;
495 struct drm_i915_private *dev_priv;
498 struct i915_suspend_saved_registers {
506 struct vlv_s0ix_state;
508 #define MAX_L3_SLICES 2
509 struct intel_l3_parity {
510 u32 *remap_info[MAX_L3_SLICES];
511 struct work_struct error_work;
516 /** Memory allocator for GTT stolen memory */
517 struct drm_mm stolen;
518 /** Protects the usage of the GTT stolen memory allocator. This is
519 * always the inner lock when overlapping with struct_mutex. */
520 struct mutex stolen_lock;
522 /* Protects bound_list/unbound_list and #drm_i915_gem_object.mm.link */
526 * List of objects which are purgeable.
528 struct list_head purge_list;
531 * List of objects which have allocated pages and are shrinkable.
533 struct list_head shrink_list;
536 * List of objects which are pending destruction.
538 struct llist_head free_list;
539 struct work_struct free_work;
541 * Count of objects pending destructions. Used to skip needlessly
542 * waiting on an RCU barrier if no objects are waiting to be freed.
547 * tmpfs instance used for shmem backed objects
549 struct vfsmount *gemfs;
551 struct intel_memory_region *regions[INTEL_REGION_UNKNOWN];
553 struct notifier_block oom_notifier;
554 struct notifier_block vmap_notifier;
555 struct shrinker shrinker;
558 * Workqueue to fault in userptr pages, flushed by the execbuf
559 * when required but otherwise left to userspace to try again
562 struct workqueue_struct *userptr_wq;
564 /* shrinker accounting, also useful for userland debugging */
569 #define I915_IDLE_ENGINES_TIMEOUT (200) /* in ms */
571 unsigned long i915_fence_context_timeout(const struct drm_i915_private *i915,
574 static inline unsigned long
575 i915_fence_timeout(const struct drm_i915_private *i915)
577 return i915_fence_context_timeout(i915, U64_MAX);
580 /* Amount of SAGV/QGV points, BSpec precisely defines this */
581 #define I915_NUM_QGV_POINTS 8
583 struct ddi_vbt_port_info {
584 /* Non-NULL if port present. */
585 const struct child_device_config *child;
589 /* This is an index in the HDMI/DVI DDI buffer translation table. */
591 u8 hdmi_level_shift_set:1;
597 u8 supports_typec_usb:1;
600 u8 alternate_aux_channel;
601 u8 alternate_ddc_pin;
605 int dp_max_link_rate; /* 0 for not limited by VBT */
608 enum psr_lines_to_wait {
609 PSR_0_LINES_TO_WAIT = 0,
615 struct intel_vbt_data {
616 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
617 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
620 unsigned int int_tv_support:1;
621 unsigned int lvds_dither:1;
622 unsigned int int_crt_support:1;
623 unsigned int lvds_use_ssc:1;
624 unsigned int int_lvds_support:1;
625 unsigned int display_clock_mode:1;
626 unsigned int fdi_rx_polarity_inverted:1;
627 unsigned int panel_type:4;
629 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
630 enum drm_panel_orientation orientation;
632 enum drrs_support_type drrs_type;
642 struct edp_power_seq pps;
649 bool require_aux_wakeup;
651 enum psr_lines_to_wait lines_to_wait;
652 int tp1_wakeup_time_us;
653 int tp2_tp3_wakeup_time_us;
654 int psr2_tp2_tp3_wakeup_time_us;
661 u8 min_brightness; /* min_brightness/255 of max */
662 u8 controller; /* brightness controller number */
663 enum intel_backlight_type type;
669 struct mipi_config *config;
670 struct mipi_pps_data *pps;
676 const u8 *sequence[MIPI_SEQ_MAX];
677 u8 *deassert_seq; /* Used by fixup_mipi_sequences() */
678 enum drm_panel_orientation orientation;
683 struct list_head display_devices;
685 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
686 struct sdvo_device_mapping sdvo_mappings[2];
689 enum intel_ddb_partitioning {
691 INTEL_DDB_PART_5_6, /* IVB+ */
694 struct ilk_wm_values {
699 enum intel_ddb_partitioning partitioning;
703 u16 plane[I915_MAX_PLANES];
713 struct vlv_wm_ddl_values {
714 u8 plane[I915_MAX_PLANES];
717 struct vlv_wm_values {
718 struct g4x_pipe_wm pipe[3];
720 struct vlv_wm_ddl_values ddl[3];
725 struct g4x_wm_values {
726 struct g4x_pipe_wm pipe[2];
728 struct g4x_sr_wm hpll;
734 struct skl_ddb_entry {
735 u16 start, end; /* in number of blocks, 'end' is exclusive */
738 static inline u16 skl_ddb_entry_size(const struct skl_ddb_entry *entry)
740 return entry->end - entry->start;
743 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
744 const struct skl_ddb_entry *e2)
746 if (e1->start == e2->start && e1->end == e2->end)
752 struct i915_frontbuffer_tracking {
756 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
763 struct i915_virtual_gpu {
764 struct mutex lock; /* serialises sending of g2v_notify command pkts */
769 struct intel_cdclk_config {
770 unsigned int cdclk, vco, ref, bypass;
774 struct i915_selftest_stash {
778 struct drm_i915_private {
779 struct drm_device drm;
781 /* FIXME: Device release actions should all be moved to drmm_ */
784 /* i915 device parameters */
785 struct i915_params params;
787 const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
788 struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
789 struct intel_driver_caps caps;
792 * Data Stolen Memory - aka "i915 stolen memory" gives us the start and
793 * end of stolen which we can optionally use to create GEM objects
794 * backed by stolen memory. Note that stolen_usable_size tells us
795 * exactly how much of this we are actually allowed to use, given that
796 * some portion of it is in fact reserved for use by hardware functions.
800 * Reseved portion of Data Stolen Memory
802 struct resource dsm_reserved;
805 * Stolen memory is segmented in hardware with different portions
806 * offlimits to certain functions.
808 * The drm_mm is initialised to the total accessible range, as found
809 * from the PCI config. On Broadwell+, this is further restricted to
810 * avoid the first page! The upper end of stolen memory is reserved for
811 * hardware functions and similarly removed from the accessible range.
813 resource_size_t stolen_usable_size; /* Total size minus reserved ranges */
815 struct intel_uncore uncore;
816 struct intel_uncore_mmio_debug mmio_debug;
818 struct i915_virtual_gpu vgpu;
820 struct intel_gvt *gvt;
822 struct intel_wopcm wopcm;
824 struct intel_csr csr;
826 struct intel_gmbus gmbus[GMBUS_NUM_PINS];
828 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
829 * controller on different i2c buses. */
830 struct mutex gmbus_mutex;
833 * Base address of where the gmbus and gpio blocks are located (either
834 * on PCH or on SoC for platforms without PCH).
838 u32 hsw_psr_mmio_adjust;
840 /* MMIO base address for MIPI regs */
845 wait_queue_head_t gmbus_wait_queue;
847 struct pci_dev *bridge_dev;
849 struct rb_root uabi_engines;
851 struct resource mch_res;
853 /* protects the irq masks */
856 bool display_irqs_enabled;
858 /* Sideband mailbox protection */
859 struct mutex sb_lock;
860 struct pm_qos_request sb_qos;
862 /** Cached value of IMR to avoid reads in updating the bitfield */
865 u32 de_irq_mask[I915_MAX_PIPES];
867 u32 pipestat_irq_mask[I915_MAX_PIPES];
869 struct i915_hotplug hotplug;
870 struct intel_fbc fbc;
871 struct i915_drrs drrs;
872 struct intel_opregion opregion;
873 struct intel_vbt_data vbt;
875 bool preserve_bios_swizzle;
878 struct intel_overlay *overlay;
880 /* backlight registers and fields in struct intel_panel */
881 struct mutex backlight_lock;
883 /* protects panel power sequencer state */
884 struct mutex pps_mutex;
886 unsigned int fsb_freq, mem_freq, is_ddr3;
887 unsigned int skl_preferred_vco_freq;
888 unsigned int max_cdclk_freq;
890 unsigned int max_dotclk_freq;
891 unsigned int hpll_freq;
892 unsigned int fdi_pll_freq;
893 unsigned int czclk_freq;
896 /* The current hardware cdclk configuration */
897 struct intel_cdclk_config hw;
899 /* cdclk, divider, and ratio table from bspec */
900 const struct intel_cdclk_vals *table;
902 struct intel_global_obj obj;
906 /* The current hardware dbuf configuration */
909 struct intel_global_obj obj;
913 * wq - Driver workqueue for GEM.
915 * NOTE: Work items scheduled here are not allowed to grab any modeset
916 * locks, for otherwise the flushing done in the pageflip code will
917 * result in deadlocks.
919 struct workqueue_struct *wq;
921 /* ordered wq for modesets */
922 struct workqueue_struct *modeset_wq;
923 /* unbound hipri wq for page flips/plane updates */
924 struct workqueue_struct *flip_wq;
926 /* Display functions */
927 struct drm_i915_display_funcs display;
929 /* PCH chipset type */
930 enum intel_pch pch_type;
931 unsigned short pch_id;
933 unsigned long quirks;
935 struct drm_atomic_state *modeset_restore_state;
936 struct drm_modeset_acquire_ctx reset_ctx;
938 struct i915_ggtt ggtt; /* VM representing the global address space */
940 struct i915_gem_mm mm;
941 DECLARE_HASHTABLE(mm_structs, 7);
944 /* Kernel Modesetting */
946 struct intel_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
947 struct intel_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
950 * dpll and cdclk state is protected by connection_mutex
951 * dpll.lock serializes intel_{prepare,enable,disable}_shared_dpll.
952 * Must be global rather than per dpll, because on some platforms plls
959 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
960 const struct intel_dpll_mgr *mgr;
968 struct list_head global_obj_list;
971 * For reading active_pipes holding any crtc lock is
972 * sufficient, for writing must hold all of them.
976 struct i915_wa_list gt_wa_list;
978 struct i915_frontbuffer_tracking fb_tracking;
980 struct intel_atomic_helper {
981 struct llist_head free_list;
982 struct work_struct free_work;
985 bool mchbar_need_disable;
987 struct intel_l3_parity l3_parity;
990 * HTI (aka HDPORT) state read during initial hw readout. Most
991 * platforms don't have HTI, so this will just stay 0. Those that do
992 * will use this later to figure out which PLLs and PHYs are unavailable
999 * Cannot be determined by PCIID. You must always read a register.
1003 struct i915_power_domains power_domains;
1005 struct i915_gpu_error gpu_error;
1007 struct drm_i915_gem_object *vlv_pctx;
1009 /* list of fbdev register on this device */
1010 struct intel_fbdev *fbdev;
1011 struct work_struct fbdev_suspend_work;
1013 struct drm_property *broadcast_rgb_property;
1014 struct drm_property *force_audio_property;
1016 /* hda/i915 audio component */
1017 struct i915_audio_component *audio_component;
1018 bool audio_component_registered;
1020 * av_mutex - mutex for audio/video sync
1023 struct mutex av_mutex;
1024 int audio_power_refcount;
1025 u32 audio_freq_cntrl;
1029 /* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
1030 u32 chv_phy_control;
1032 * Shadows for CHV DPLL_MD regs to keep the state
1033 * checker somewhat working in the presence hardware
1034 * crappiness (can't read out DPLL_MD for pipes B & C).
1036 u32 chv_dpll_md[I915_MAX_PIPES];
1040 bool power_domains_suspended;
1041 struct i915_suspend_saved_registers regfile;
1042 struct vlv_s0ix_state *vlv_s0ix_state;
1045 I915_SAGV_UNKNOWN = 0,
1048 I915_SAGV_NOT_CONTROLLED
1051 u32 sagv_block_time_us;
1055 * Raw watermark latency values:
1056 * in 0.1us units for WM0,
1057 * in 0.5us units for WM1+.
1066 * Raw watermark memory latency values
1067 * for SKL for all 8 levels
1072 /* current hardware state */
1074 struct ilk_wm_values hw;
1075 struct vlv_wm_values vlv;
1076 struct g4x_wm_values g4x;
1082 * Should be held around atomic WM register writing; also
1083 * protects * intel_crtc->wm.active and
1084 * crtc_state->wm.need_postvbl_update.
1086 struct mutex wm_mutex;
1090 bool wm_lv_0_adjust_needed;
1092 bool symmetric_memory;
1093 enum intel_dram_type {
1105 struct intel_bw_info {
1106 /* for each QGV point */
1107 unsigned int deratedbw[I915_NUM_QGV_POINTS];
1112 struct intel_global_obj bw_obj;
1114 struct intel_runtime_pm runtime_pm;
1116 struct i915_perf perf;
1118 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1122 struct i915_gem_contexts {
1123 spinlock_t lock; /* locks list */
1124 struct list_head list;
1128 * We replace the local file with a global mappings as the
1129 * backing storage for the mmap is on the device and not
1130 * on the struct file, and we do not want to prolong the
1131 * lifetime of the local fd. To minimise the number of
1132 * anonymous inodes we create, we use a global singleton to
1133 * share the global mapping.
1135 struct file *mmap_singleton;
1138 u8 framestart_delay;
1142 /* For i915gm/i945gm vblank irq workaround */
1145 /* perform PHY state sanity checks? */
1146 bool chv_phy_assert[2];
1150 /* Used to save the pipe-to-encoder mapping for audio */
1151 struct intel_encoder *av_enc_map[I915_MAX_PIPES];
1153 /* necessary resource sharing with HDMI LPE audio driver. */
1155 struct platform_device *platdev;
1159 struct i915_pmu pmu;
1161 struct i915_hdcp_comp_master *hdcp_master;
1162 bool hdcp_comp_added;
1164 /* Mutex to protect the above hdcp component related values. */
1165 struct mutex hdcp_comp_mutex;
1167 I915_SELFTEST_DECLARE(struct i915_selftest_stash selftest;)
1170 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1171 * will be rejected. Instead look for a better place.
1175 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1177 return container_of(dev, struct drm_i915_private, drm);
1180 static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
1182 return dev_get_drvdata(kdev);
1185 static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
1187 return pci_get_drvdata(pdev);
1190 /* Simple iterator over all initialised engines */
1191 #define for_each_engine(engine__, dev_priv__, id__) \
1193 (id__) < I915_NUM_ENGINES; \
1195 for_each_if ((engine__) = (dev_priv__)->engine[(id__)])
1197 /* Iterator over subset of engines selected by mask */
1198 #define for_each_engine_masked(engine__, gt__, mask__, tmp__) \
1199 for ((tmp__) = (mask__) & (gt__)->info.engine_mask; \
1201 ((engine__) = (gt__)->engine[__mask_next_bit(tmp__)]), 1 : \
1204 #define rb_to_uabi_engine(rb) \
1205 rb_entry_safe(rb, struct intel_engine_cs, uabi_node)
1207 #define for_each_uabi_engine(engine__, i915__) \
1208 for ((engine__) = rb_to_uabi_engine(rb_first(&(i915__)->uabi_engines));\
1210 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1212 #define for_each_uabi_class_engine(engine__, class__, i915__) \
1213 for ((engine__) = intel_engine_lookup_user((i915__), (class__), 0); \
1214 (engine__) && (engine__)->uabi_class == (class__); \
1215 (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
1217 #define I915_GTT_OFFSET_NONE ((u32)-1)
1220 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1221 * considered to be the frontbuffer for the given plane interface-wise. This
1222 * doesn't mean that the hw necessarily already scans it out, but that any
1223 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1225 * We have one bit per pipe and per scanout plane type.
1227 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
1228 #define INTEL_FRONTBUFFER(pipe, plane_id) ({ \
1229 BUILD_BUG_ON(INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES > 32); \
1230 BUILD_BUG_ON(I915_MAX_PLANES > INTEL_FRONTBUFFER_BITS_PER_PIPE); \
1231 BIT((plane_id) + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)); \
1233 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1234 BIT(INTEL_FRONTBUFFER_BITS_PER_PIPE - 1 + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1235 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1236 GENMASK(INTEL_FRONTBUFFER_BITS_PER_PIPE * ((pipe) + 1) - 1, \
1237 INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
1239 #define INTEL_INFO(dev_priv) (&(dev_priv)->__info)
1240 #define RUNTIME_INFO(dev_priv) (&(dev_priv)->__runtime)
1241 #define DRIVER_CAPS(dev_priv) (&(dev_priv)->caps)
1243 #define INTEL_GEN(dev_priv) (INTEL_INFO(dev_priv)->gen)
1244 #define INTEL_DEVID(dev_priv) (RUNTIME_INFO(dev_priv)->device_id)
1246 #define REVID_FOREVER 0xff
1247 #define INTEL_REVID(dev_priv) (to_pci_dev((dev_priv)->drm.dev)->revision)
1249 #define INTEL_GEN_MASK(s, e) ( \
1250 BUILD_BUG_ON_ZERO(!__builtin_constant_p(s)) + \
1251 BUILD_BUG_ON_ZERO(!__builtin_constant_p(e)) + \
1252 GENMASK((e) - 1, (s) - 1))
1254 /* Returns true if Gen is in inclusive range [Start, End] */
1255 #define IS_GEN_RANGE(dev_priv, s, e) \
1256 (!!(INTEL_INFO(dev_priv)->gen_mask & INTEL_GEN_MASK((s), (e))))
1258 #define IS_GEN(dev_priv, n) \
1259 (BUILD_BUG_ON_ZERO(!__builtin_constant_p(n)) + \
1260 INTEL_INFO(dev_priv)->gen == (n))
1262 #define HAS_DSB(dev_priv) (INTEL_INFO(dev_priv)->display.has_dsb)
1265 * Return true if revision is in range [since,until] inclusive.
1267 * Use 0 for open-ended since, and REVID_FOREVER for open-ended until.
1269 #define IS_REVID(p, since, until) \
1270 (INTEL_REVID(p) >= (since) && INTEL_REVID(p) <= (until))
1272 static __always_inline unsigned int
1273 __platform_mask_index(const struct intel_runtime_info *info,
1274 enum intel_platform p)
1276 const unsigned int pbits =
1277 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1279 /* Expand the platform_mask array if this fails. */
1280 BUILD_BUG_ON(INTEL_MAX_PLATFORMS >
1281 pbits * ARRAY_SIZE(info->platform_mask));
1286 static __always_inline unsigned int
1287 __platform_mask_bit(const struct intel_runtime_info *info,
1288 enum intel_platform p)
1290 const unsigned int pbits =
1291 BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
1293 return p % pbits + INTEL_SUBPLATFORM_BITS;
1297 intel_subplatform(const struct intel_runtime_info *info, enum intel_platform p)
1299 const unsigned int pi = __platform_mask_index(info, p);
1301 return info->platform_mask[pi] & ((1 << INTEL_SUBPLATFORM_BITS) - 1);
1304 static __always_inline bool
1305 IS_PLATFORM(const struct drm_i915_private *i915, enum intel_platform p)
1307 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1308 const unsigned int pi = __platform_mask_index(info, p);
1309 const unsigned int pb = __platform_mask_bit(info, p);
1311 BUILD_BUG_ON(!__builtin_constant_p(p));
1313 return info->platform_mask[pi] & BIT(pb);
1316 static __always_inline bool
1317 IS_SUBPLATFORM(const struct drm_i915_private *i915,
1318 enum intel_platform p, unsigned int s)
1320 const struct intel_runtime_info *info = RUNTIME_INFO(i915);
1321 const unsigned int pi = __platform_mask_index(info, p);
1322 const unsigned int pb = __platform_mask_bit(info, p);
1323 const unsigned int msb = BITS_PER_TYPE(info->platform_mask[0]) - 1;
1324 const u32 mask = info->platform_mask[pi];
1326 BUILD_BUG_ON(!__builtin_constant_p(p));
1327 BUILD_BUG_ON(!__builtin_constant_p(s));
1328 BUILD_BUG_ON((s) >= INTEL_SUBPLATFORM_BITS);
1330 /* Shift and test on the MSB position so sign flag can be used. */
1331 return ((mask << (msb - pb)) & (mask << (msb - s))) & BIT(msb);
1334 #define IS_MOBILE(dev_priv) (INTEL_INFO(dev_priv)->is_mobile)
1335 #define IS_DGFX(dev_priv) (INTEL_INFO(dev_priv)->is_dgfx)
1337 #define IS_I830(dev_priv) IS_PLATFORM(dev_priv, INTEL_I830)
1338 #define IS_I845G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I845G)
1339 #define IS_I85X(dev_priv) IS_PLATFORM(dev_priv, INTEL_I85X)
1340 #define IS_I865G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I865G)
1341 #define IS_I915G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915G)
1342 #define IS_I915GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I915GM)
1343 #define IS_I945G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945G)
1344 #define IS_I945GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I945GM)
1345 #define IS_I965G(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965G)
1346 #define IS_I965GM(dev_priv) IS_PLATFORM(dev_priv, INTEL_I965GM)
1347 #define IS_G45(dev_priv) IS_PLATFORM(dev_priv, INTEL_G45)
1348 #define IS_GM45(dev_priv) IS_PLATFORM(dev_priv, INTEL_GM45)
1349 #define IS_G4X(dev_priv) (IS_G45(dev_priv) || IS_GM45(dev_priv))
1350 #define IS_PINEVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_PINEVIEW)
1351 #define IS_G33(dev_priv) IS_PLATFORM(dev_priv, INTEL_G33)
1352 #define IS_IRONLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IRONLAKE)
1353 #define IS_IRONLAKE_M(dev_priv) \
1354 (IS_PLATFORM(dev_priv, INTEL_IRONLAKE) && IS_MOBILE(dev_priv))
1355 #define IS_IVYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_IVYBRIDGE)
1356 #define IS_IVB_GT1(dev_priv) (IS_IVYBRIDGE(dev_priv) && \
1357 INTEL_INFO(dev_priv)->gt == 1)
1358 #define IS_VALLEYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_VALLEYVIEW)
1359 #define IS_CHERRYVIEW(dev_priv) IS_PLATFORM(dev_priv, INTEL_CHERRYVIEW)
1360 #define IS_HASWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_HASWELL)
1361 #define IS_BROADWELL(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROADWELL)
1362 #define IS_SKYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SKYLAKE)
1363 #define IS_BROXTON(dev_priv) IS_PLATFORM(dev_priv, INTEL_BROXTON)
1364 #define IS_KABYLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_KABYLAKE)
1365 #define IS_GEMINILAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_GEMINILAKE)
1366 #define IS_COFFEELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COFFEELAKE)
1367 #define IS_COMETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COMETLAKE)
1368 #define IS_CANNONLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_CANNONLAKE)
1369 #define IS_ICELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ICELAKE)
1370 #define IS_JSL_EHL(dev_priv) (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE) || \
1371 IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
1372 #define IS_TIGERLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_TIGERLAKE)
1373 #define IS_ROCKETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)
1374 #define IS_DG1(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG1)
1375 #define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S)
1376 #define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \
1377 (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00)
1378 #define IS_BDW_ULT(dev_priv) \
1379 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULT)
1380 #define IS_BDW_ULX(dev_priv) \
1381 IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULX)
1382 #define IS_BDW_GT3(dev_priv) (IS_BROADWELL(dev_priv) && \
1383 INTEL_INFO(dev_priv)->gt == 3)
1384 #define IS_HSW_ULT(dev_priv) \
1385 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULT)
1386 #define IS_HSW_GT3(dev_priv) (IS_HASWELL(dev_priv) && \
1387 INTEL_INFO(dev_priv)->gt == 3)
1388 #define IS_HSW_GT1(dev_priv) (IS_HASWELL(dev_priv) && \
1389 INTEL_INFO(dev_priv)->gt == 1)
1390 /* ULX machines are also considered ULT. */
1391 #define IS_HSW_ULX(dev_priv) \
1392 IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULX)
1393 #define IS_SKL_ULT(dev_priv) \
1394 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULT)
1395 #define IS_SKL_ULX(dev_priv) \
1396 IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULX)
1397 #define IS_KBL_ULT(dev_priv) \
1398 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULT)
1399 #define IS_KBL_ULX(dev_priv) \
1400 IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULX)
1401 #define IS_SKL_GT2(dev_priv) (IS_SKYLAKE(dev_priv) && \
1402 INTEL_INFO(dev_priv)->gt == 2)
1403 #define IS_SKL_GT3(dev_priv) (IS_SKYLAKE(dev_priv) && \
1404 INTEL_INFO(dev_priv)->gt == 3)
1405 #define IS_SKL_GT4(dev_priv) (IS_SKYLAKE(dev_priv) && \
1406 INTEL_INFO(dev_priv)->gt == 4)
1407 #define IS_KBL_GT2(dev_priv) (IS_KABYLAKE(dev_priv) && \
1408 INTEL_INFO(dev_priv)->gt == 2)
1409 #define IS_KBL_GT3(dev_priv) (IS_KABYLAKE(dev_priv) && \
1410 INTEL_INFO(dev_priv)->gt == 3)
1411 #define IS_CFL_ULT(dev_priv) \
1412 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULT)
1413 #define IS_CFL_ULX(dev_priv) \
1414 IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULX)
1415 #define IS_CFL_GT2(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1416 INTEL_INFO(dev_priv)->gt == 2)
1417 #define IS_CFL_GT3(dev_priv) (IS_COFFEELAKE(dev_priv) && \
1418 INTEL_INFO(dev_priv)->gt == 3)
1420 #define IS_CML_ULT(dev_priv) \
1421 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULT)
1422 #define IS_CML_ULX(dev_priv) \
1423 IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULX)
1424 #define IS_CML_GT2(dev_priv) (IS_COMETLAKE(dev_priv) && \
1425 INTEL_INFO(dev_priv)->gt == 2)
1427 #define IS_CNL_WITH_PORT_F(dev_priv) \
1428 IS_SUBPLATFORM(dev_priv, INTEL_CANNONLAKE, INTEL_SUBPLATFORM_PORTF)
1429 #define IS_ICL_WITH_PORT_F(dev_priv) \
1430 IS_SUBPLATFORM(dev_priv, INTEL_ICELAKE, INTEL_SUBPLATFORM_PORTF)
1432 #define IS_TGL_U(dev_priv) \
1433 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULT)
1435 #define IS_TGL_Y(dev_priv) \
1436 IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULX)
1438 #define SKL_REVID_A0 0x0
1439 #define SKL_REVID_B0 0x1
1440 #define SKL_REVID_C0 0x2
1441 #define SKL_REVID_D0 0x3
1442 #define SKL_REVID_E0 0x4
1443 #define SKL_REVID_F0 0x5
1444 #define SKL_REVID_G0 0x6
1445 #define SKL_REVID_H0 0x7
1447 #define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until))
1449 #define BXT_REVID_A0 0x0
1450 #define BXT_REVID_A1 0x1
1451 #define BXT_REVID_B0 0x3
1452 #define BXT_REVID_B_LAST 0x8
1453 #define BXT_REVID_C0 0x9
1455 #define IS_BXT_REVID(dev_priv, since, until) \
1456 (IS_BROXTON(dev_priv) && IS_REVID(dev_priv, since, until))
1470 struct i915_rev_steppings {
1475 /* Defined in intel_workarounds.c */
1476 extern const struct i915_rev_steppings kbl_revids[];
1478 #define IS_KBL_GT_REVID(dev_priv, since, until) \
1479 (IS_KABYLAKE(dev_priv) && \
1480 kbl_revids[INTEL_REVID(dev_priv)].gt_stepping >= since && \
1481 kbl_revids[INTEL_REVID(dev_priv)].gt_stepping <= until)
1482 #define IS_KBL_DISP_REVID(dev_priv, since, until) \
1483 (IS_KABYLAKE(dev_priv) && \
1484 kbl_revids[INTEL_REVID(dev_priv)].disp_stepping >= since && \
1485 kbl_revids[INTEL_REVID(dev_priv)].disp_stepping <= until)
1487 #define GLK_REVID_A0 0x0
1488 #define GLK_REVID_A1 0x1
1489 #define GLK_REVID_A2 0x2
1490 #define GLK_REVID_B0 0x3
1492 #define IS_GLK_REVID(dev_priv, since, until) \
1493 (IS_GEMINILAKE(dev_priv) && IS_REVID(dev_priv, since, until))
1495 #define CNL_REVID_A0 0x0
1496 #define CNL_REVID_B0 0x1
1497 #define CNL_REVID_C0 0x2
1499 #define IS_CNL_REVID(p, since, until) \
1500 (IS_CANNONLAKE(p) && IS_REVID(p, since, until))
1502 #define ICL_REVID_A0 0x0
1503 #define ICL_REVID_A2 0x1
1504 #define ICL_REVID_B0 0x3
1505 #define ICL_REVID_B2 0x4
1506 #define ICL_REVID_C0 0x5
1508 #define IS_ICL_REVID(p, since, until) \
1509 (IS_ICELAKE(p) && IS_REVID(p, since, until))
1511 #define EHL_REVID_A0 0x0
1512 #define EHL_REVID_B0 0x1
1514 #define IS_JSL_EHL_REVID(p, since, until) \
1515 (IS_JSL_EHL(p) && IS_REVID(p, since, until))
1526 #define TGL_UY_REVID_STEP_TBL_SIZE 4
1527 #define TGL_REVID_STEP_TBL_SIZE 2
1528 #define ADLS_REVID_STEP_TBL_SIZE 13
1530 extern const struct i915_rev_steppings tgl_uy_revid_step_tbl[TGL_UY_REVID_STEP_TBL_SIZE];
1531 extern const struct i915_rev_steppings tgl_revid_step_tbl[TGL_REVID_STEP_TBL_SIZE];
1532 extern const struct i915_rev_steppings adls_revid_step_tbl[ADLS_REVID_STEP_TBL_SIZE];
1534 static inline const struct i915_rev_steppings *
1535 tgl_stepping_get(struct drm_i915_private *dev_priv)
1537 u8 revid = INTEL_REVID(dev_priv);
1539 const struct i915_rev_steppings *revid_step_tbl;
1541 if (IS_ALDERLAKE_S(dev_priv)) {
1542 revid_step_tbl = adls_revid_step_tbl;
1543 size = ARRAY_SIZE(adls_revid_step_tbl);
1544 } else if (IS_TGL_U(dev_priv) || IS_TGL_Y(dev_priv)) {
1545 revid_step_tbl = tgl_uy_revid_step_tbl;
1546 size = ARRAY_SIZE(tgl_uy_revid_step_tbl);
1548 revid_step_tbl = tgl_revid_step_tbl;
1549 size = ARRAY_SIZE(tgl_revid_step_tbl);
1552 revid = min_t(u8, revid, size - 1);
1554 return &revid_step_tbl[revid];
1557 #define IS_TGL_DISP_STEPPING(p, since, until) \
1558 (IS_TIGERLAKE(p) && \
1559 tgl_stepping_get(p)->disp_stepping >= (since) && \
1560 tgl_stepping_get(p)->disp_stepping <= (until))
1562 #define IS_TGL_UY_GT_STEPPING(p, since, until) \
1563 ((IS_TGL_U(p) || IS_TGL_Y(p)) && \
1564 tgl_stepping_get(p)->gt_stepping >= (since) && \
1565 tgl_stepping_get(p)->gt_stepping <= (until))
1567 #define IS_TGL_GT_STEPPING(p, since, until) \
1568 (IS_TIGERLAKE(p) && \
1569 !(IS_TGL_U(p) || IS_TGL_Y(p)) && \
1570 tgl_stepping_get(p)->gt_stepping >= (since) && \
1571 tgl_stepping_get(p)->gt_stepping <= (until))
1573 #define RKL_REVID_A0 0x0
1574 #define RKL_REVID_B0 0x1
1575 #define RKL_REVID_C0 0x4
1577 #define IS_RKL_REVID(p, since, until) \
1578 (IS_ROCKETLAKE(p) && IS_REVID(p, since, until))
1580 #define DG1_REVID_A0 0x0
1581 #define DG1_REVID_B0 0x1
1583 #define IS_DG1_REVID(p, since, until) \
1584 (IS_DG1(p) && IS_REVID(p, since, until))
1586 #define ADLS_REVID_A0 0x0
1587 #define ADLS_REVID_A2 0x1
1588 #define ADLS_REVID_B0 0x4
1589 #define ADLS_REVID_G0 0x8
1590 #define ADLS_REVID_C0 0xC /*Same as H0 ADLS SOC stepping*/
1592 #define IS_ADLS_DISP_STEPPING(p, since, until) \
1593 (IS_ALDERLAKE_S(p) && \
1594 tgl_stepping_get(p)->disp_stepping >= (since) && \
1595 tgl_stepping_get(p)->disp_stepping <= (until))
1597 #define IS_ADLS_GT_STEPPING(p, since, until) \
1598 (IS_ALDERLAKE_S(p) && \
1599 tgl_stepping_get(p)->gt_stepping >= (since) && \
1600 tgl_stepping_get(p)->gt_stepping <= (until))
1602 #define IS_LP(dev_priv) (INTEL_INFO(dev_priv)->is_lp)
1603 #define IS_GEN9_LP(dev_priv) (IS_GEN(dev_priv, 9) && IS_LP(dev_priv))
1604 #define IS_GEN9_BC(dev_priv) (IS_GEN(dev_priv, 9) && !IS_LP(dev_priv))
1606 #define __HAS_ENGINE(engine_mask, id) ((engine_mask) & BIT(id))
1607 #define HAS_ENGINE(gt, id) __HAS_ENGINE((gt)->info.engine_mask, id)
1609 #define ENGINE_INSTANCES_MASK(gt, first, count) ({ \
1610 unsigned int first__ = (first); \
1611 unsigned int count__ = (count); \
1612 ((gt)->info.engine_mask & \
1613 GENMASK(first__ + count__ - 1, first__)) >> first__; \
1615 #define VDBOX_MASK(gt) \
1616 ENGINE_INSTANCES_MASK(gt, VCS0, I915_MAX_VCS)
1617 #define VEBOX_MASK(gt) \
1618 ENGINE_INSTANCES_MASK(gt, VECS0, I915_MAX_VECS)
1621 * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
1622 * All later gens can run the final buffer from the ppgtt
1624 #define CMDPARSER_USES_GGTT(dev_priv) IS_GEN(dev_priv, 7)
1626 #define HAS_LLC(dev_priv) (INTEL_INFO(dev_priv)->has_llc)
1627 #define HAS_SNOOP(dev_priv) (INTEL_INFO(dev_priv)->has_snoop)
1628 #define HAS_EDRAM(dev_priv) ((dev_priv)->edram_size_mb)
1629 #define HAS_SECURE_BATCHES(dev_priv) (INTEL_GEN(dev_priv) < 6)
1630 #define HAS_WT(dev_priv) HAS_EDRAM(dev_priv)
1632 #define HWS_NEEDS_PHYSICAL(dev_priv) (INTEL_INFO(dev_priv)->hws_needs_physical)
1634 #define HAS_LOGICAL_RING_CONTEXTS(dev_priv) \
1635 (INTEL_INFO(dev_priv)->has_logical_ring_contexts)
1636 #define HAS_LOGICAL_RING_ELSQ(dev_priv) \
1637 (INTEL_INFO(dev_priv)->has_logical_ring_elsq)
1639 #define HAS_MASTER_UNIT_IRQ(dev_priv) (INTEL_INFO(dev_priv)->has_master_unit_irq)
1641 #define HAS_EXECLISTS(dev_priv) HAS_LOGICAL_RING_CONTEXTS(dev_priv)
1643 #define INTEL_PPGTT(dev_priv) (INTEL_INFO(dev_priv)->ppgtt_type)
1644 #define HAS_PPGTT(dev_priv) \
1645 (INTEL_PPGTT(dev_priv) != INTEL_PPGTT_NONE)
1646 #define HAS_FULL_PPGTT(dev_priv) \
1647 (INTEL_PPGTT(dev_priv) >= INTEL_PPGTT_FULL)
1649 #define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
1650 GEM_BUG_ON((sizes) == 0); \
1651 ((sizes) & ~INTEL_INFO(dev_priv)->page_sizes) == 0; \
1654 #define HAS_OVERLAY(dev_priv) (INTEL_INFO(dev_priv)->display.has_overlay)
1655 #define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
1656 (INTEL_INFO(dev_priv)->display.overlay_needs_physical)
1658 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1659 #define HAS_BROKEN_CS_TLB(dev_priv) (IS_I830(dev_priv) || IS_I845G(dev_priv))
1661 #define NEEDS_RC6_CTX_CORRUPTION_WA(dev_priv) \
1662 (IS_BROADWELL(dev_priv) || IS_GEN(dev_priv, 9))
1664 /* WaRsDisableCoarsePowerGating:skl,cnl */
1665 #define NEEDS_WaRsDisableCoarsePowerGating(dev_priv) \
1666 (IS_CANNONLAKE(dev_priv) || \
1667 IS_SKL_GT3(dev_priv) || \
1668 IS_SKL_GT4(dev_priv))
1670 #define HAS_GMBUS_IRQ(dev_priv) (INTEL_GEN(dev_priv) >= 4)
1671 #define HAS_GMBUS_BURST_READ(dev_priv) (INTEL_GEN(dev_priv) >= 10 || \
1672 IS_GEMINILAKE(dev_priv) || \
1673 IS_KABYLAKE(dev_priv))
1675 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1676 * rows, which changed the alignment requirements and fence programming.
1678 #define HAS_128_BYTE_Y_TILING(dev_priv) (!IS_GEN(dev_priv, 2) && \
1679 !(IS_I915G(dev_priv) || \
1680 IS_I915GM(dev_priv)))
1681 #define SUPPORTS_TV(dev_priv) (INTEL_INFO(dev_priv)->display.supports_tv)
1682 #define I915_HAS_HOTPLUG(dev_priv) (INTEL_INFO(dev_priv)->display.has_hotplug)
1684 #define HAS_FW_BLC(dev_priv) (INTEL_GEN(dev_priv) > 2)
1685 #define HAS_FBC(dev_priv) (INTEL_INFO(dev_priv)->display.has_fbc)
1686 #define HAS_CUR_FBC(dev_priv) (!HAS_GMCH(dev_priv) && INTEL_GEN(dev_priv) >= 7)
1688 #define HAS_IPS(dev_priv) (IS_HSW_ULT(dev_priv) || IS_BROADWELL(dev_priv))
1690 #define HAS_DP_MST(dev_priv) (INTEL_INFO(dev_priv)->display.has_dp_mst)
1692 #define HAS_DDI(dev_priv) (INTEL_INFO(dev_priv)->display.has_ddi)
1693 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
1694 #define HAS_PSR(dev_priv) (INTEL_INFO(dev_priv)->display.has_psr)
1695 #define HAS_PSR_HW_TRACKING(dev_priv) \
1696 (INTEL_INFO(dev_priv)->display.has_psr_hw_tracking)
1697 #define HAS_PSR2_SEL_FETCH(dev_priv) (INTEL_GEN(dev_priv) >= 12)
1698 #define HAS_TRANSCODER(dev_priv, trans) ((INTEL_INFO(dev_priv)->cpu_transcoder_mask & BIT(trans)) != 0)
1700 #define HAS_RC6(dev_priv) (INTEL_INFO(dev_priv)->has_rc6)
1701 #define HAS_RC6p(dev_priv) (INTEL_INFO(dev_priv)->has_rc6p)
1702 #define HAS_RC6pp(dev_priv) (false) /* HW was never validated */
1704 #define HAS_RPS(dev_priv) (INTEL_INFO(dev_priv)->has_rps)
1706 #define HAS_CSR(dev_priv) (INTEL_INFO(dev_priv)->display.has_csr)
1708 #define HAS_MSO(i915) (INTEL_GEN(i915) >= 12)
1710 #define HAS_RUNTIME_PM(dev_priv) (INTEL_INFO(dev_priv)->has_runtime_pm)
1711 #define HAS_64BIT_RELOC(dev_priv) (INTEL_INFO(dev_priv)->has_64bit_reloc)
1713 #define HAS_IPC(dev_priv) (INTEL_INFO(dev_priv)->display.has_ipc)
1715 #define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i))
1716 #define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM)
1718 #define HAS_GT_UC(dev_priv) (INTEL_INFO(dev_priv)->has_gt_uc)
1720 #define HAS_POOLED_EU(dev_priv) (INTEL_INFO(dev_priv)->has_pooled_eu)
1722 #define HAS_GLOBAL_MOCS_REGISTERS(dev_priv) (INTEL_INFO(dev_priv)->has_global_mocs)
1725 #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)
1727 #define HAS_LSPCON(dev_priv) (IS_GEN_RANGE(dev_priv, 9, 10))
1729 /* DPF == dynamic parity feature */
1730 #define HAS_L3_DPF(dev_priv) (INTEL_INFO(dev_priv)->has_l3_dpf)
1731 #define NUM_L3_SLICES(dev_priv) (IS_HSW_GT3(dev_priv) ? \
1732 2 : HAS_L3_DPF(dev_priv))
1734 #define GT_FREQUENCY_MULTIPLIER 50
1735 #define GEN9_FREQ_SCALER 3
1737 #define INTEL_NUM_PIPES(dev_priv) (hweight8(INTEL_INFO(dev_priv)->pipe_mask))
1739 #define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->pipe_mask != 0)
1741 #define HAS_VRR(i915) (INTEL_GEN(i915) >= 12)
1743 /* Only valid when HAS_DISPLAY() is true */
1744 #define INTEL_DISPLAY_ENABLED(dev_priv) \
1745 (drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
1747 static inline bool run_as_guest(void)
1749 return !hypervisor_is_type(X86_HYPER_NATIVE);
1752 #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \
1753 IS_ALDERLAKE_S(dev_priv))
1755 static inline bool intel_vtd_active(void)
1757 #ifdef CONFIG_INTEL_IOMMU
1758 if (intel_iommu_gfx_mapped)
1762 /* Running as a guest, we assume the host is enforcing VT'd */
1763 return run_as_guest();
1766 static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
1768 return INTEL_GEN(dev_priv) >= 6 && intel_vtd_active();
1772 intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *dev_priv)
1774 return IS_BROXTON(dev_priv) && intel_vtd_active();
1778 extern const struct dev_pm_ops i915_pm_ops;
1780 int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
1781 void i915_driver_remove(struct drm_i915_private *i915);
1782 void i915_driver_shutdown(struct drm_i915_private *i915);
1784 int i915_resume_switcheroo(struct drm_i915_private *i915);
1785 int i915_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state);
1787 int i915_getparam_ioctl(struct drm_device *dev, void *data,
1788 struct drm_file *file_priv);
1791 int i915_gem_init_userptr(struct drm_i915_private *dev_priv);
1792 void i915_gem_cleanup_userptr(struct drm_i915_private *dev_priv);
1793 void i915_gem_init_early(struct drm_i915_private *dev_priv);
1794 void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);
1796 struct intel_memory_region *i915_gem_shmem_setup(struct drm_i915_private *i915);
1798 static inline void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
1801 * A single pass should suffice to release all the freed objects (along
1802 * most call paths) , but be a little more paranoid in that freeing
1803 * the objects does take a little amount of time, during which the rcu
1804 * callbacks could have added new objects into the freed list, and
1805 * armed the work again.
1807 while (atomic_read(&i915->mm.free_count)) {
1808 flush_work(&i915->mm.free_work);
1813 static inline void i915_gem_drain_workqueue(struct drm_i915_private *i915)
1816 * Similar to objects above (see i915_gem_drain_freed-objects), in
1817 * general we have workers that are armed by RCU and then rearm
1818 * themselves in their callbacks. To be paranoid, we need to
1819 * drain the workqueue a second time after waiting for the RCU
1820 * grace period so that we catch work queued via RCU from the first
1821 * pass. As neither drain_workqueue() nor flush_workqueue() report
1822 * a result, we make an assumption that we only don't require more
1823 * than 3 passes to catch all _recursive_ RCU delayed work.
1828 flush_workqueue(i915->wq);
1830 i915_gem_drain_freed_objects(i915);
1832 drain_workqueue(i915->wq);
1835 struct i915_vma * __must_check
1836 i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
1837 struct i915_gem_ww_ctx *ww,
1838 const struct i915_ggtt_view *view,
1839 u64 size, u64 alignment, u64 flags);
1841 static inline struct i915_vma * __must_check
1842 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
1843 const struct i915_ggtt_view *view,
1844 u64 size, u64 alignment, u64 flags)
1846 return i915_gem_object_ggtt_pin_ww(obj, NULL, view, size, alignment, flags);
1849 int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
1850 unsigned long flags);
1851 #define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
1852 #define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
1853 #define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
1855 void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);
1857 int i915_gem_dumb_create(struct drm_file *file_priv,
1858 struct drm_device *dev,
1859 struct drm_mode_create_dumb *args);
1861 int __must_check i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno);
1863 static inline u32 i915_reset_count(struct i915_gpu_error *error)
1865 return atomic_read(&error->reset_count);
1868 static inline u32 i915_reset_engine_count(struct i915_gpu_error *error,
1869 const struct intel_engine_cs *engine)
1871 return atomic_read(&error->reset_engine_count[engine->uabi_class]);
1874 int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
1875 void i915_gem_driver_register(struct drm_i915_private *i915);
1876 void i915_gem_driver_unregister(struct drm_i915_private *i915);
1877 void i915_gem_driver_remove(struct drm_i915_private *dev_priv);
1878 void i915_gem_driver_release(struct drm_i915_private *dev_priv);
1879 void i915_gem_suspend(struct drm_i915_private *dev_priv);
1880 void i915_gem_suspend_late(struct drm_i915_private *dev_priv);
1881 void i915_gem_resume(struct drm_i915_private *dev_priv);
1883 int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
1885 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1886 enum i915_cache_level cache_level);
1888 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1889 struct dma_buf *dma_buf);
1891 struct dma_buf *i915_gem_prime_export(struct drm_gem_object *gem_obj, int flags);
1893 static inline struct i915_gem_context *
1894 __i915_gem_context_lookup_rcu(struct drm_i915_file_private *file_priv, u32 id)
1896 return xa_load(&file_priv->context_xa, id);
1899 static inline struct i915_gem_context *
1900 i915_gem_context_lookup(struct drm_i915_file_private *file_priv, u32 id)
1902 struct i915_gem_context *ctx;
1905 ctx = __i915_gem_context_lookup_rcu(file_priv, id);
1906 if (ctx && !kref_get_unless_zero(&ctx->ref))
1913 /* i915_gem_evict.c */
1914 int __must_check i915_gem_evict_something(struct i915_address_space *vm,
1915 u64 min_size, u64 alignment,
1916 unsigned long color,
1919 int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
1920 struct drm_mm_node *node,
1921 unsigned int flags);
1922 int i915_gem_evict_vm(struct i915_address_space *vm);
1924 /* i915_gem_internal.c */
1925 struct drm_i915_gem_object *
1926 i915_gem_object_create_internal(struct drm_i915_private *dev_priv,
1929 /* i915_gem_tiling.c */
1930 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1932 struct drm_i915_private *i915 = to_i915(obj->base.dev);
1934 return i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1935 i915_gem_object_is_tiled(obj);
1938 u32 i915_gem_fence_size(struct drm_i915_private *dev_priv, u32 size,
1939 unsigned int tiling, unsigned int stride);
1940 u32 i915_gem_fence_alignment(struct drm_i915_private *dev_priv, u32 size,
1941 unsigned int tiling, unsigned int stride);
1943 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
1945 /* i915_cmd_parser.c */
1946 int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv);
1947 void intel_engine_init_cmd_parser(struct intel_engine_cs *engine);
1948 void intel_engine_cleanup_cmd_parser(struct intel_engine_cs *engine);
1949 int intel_engine_cmd_parser(struct intel_engine_cs *engine,
1950 struct i915_vma *batch,
1951 unsigned long batch_offset,
1952 unsigned long batch_length,
1953 struct i915_vma *shadow,
1955 #define I915_CMD_PARSER_TRAMPOLINE_SIZE 8
1957 /* intel_device_info.c */
1958 static inline struct intel_device_info *
1959 mkwrite_device_info(struct drm_i915_private *dev_priv)
1961 return (struct intel_device_info *)INTEL_INFO(dev_priv);
1964 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
1965 struct drm_file *file);
1968 int remap_io_mapping(struct vm_area_struct *vma,
1969 unsigned long addr, unsigned long pfn, unsigned long size,
1970 struct io_mapping *iomap);
1971 int remap_io_sg(struct vm_area_struct *vma,
1972 unsigned long addr, unsigned long size,
1973 struct scatterlist *sgl, resource_size_t iobase);
1975 static inline int intel_hws_csb_write_index(struct drm_i915_private *i915)
1977 if (INTEL_GEN(i915) >= 10)
1978 return CNL_HWS_CSB_WRITE_INDEX;
1980 return I915_HWS_CSB_WRITE_INDEX;
1983 static inline enum i915_map_type
1984 i915_coherent_map_type(struct drm_i915_private *i915)
1986 return HAS_LLC(i915) ? I915_MAP_WB : I915_MAP_WC;