2 * Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
3 * Copyright (c) 2007-2008 Intel Corporation
4 * Jesse Barnes <jesse.barnes@intel.com>
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
25 #ifndef __INTEL_DRV_H__
26 #define __INTEL_DRV_H__
28 #include <linux/async.h>
29 #include <linux/i2c.h>
30 #include <linux/hdmi.h>
31 #include <linux/sched/clock.h>
32 #include <drm/i915_drm.h>
34 #include <drm/drm_crtc.h>
35 #include <drm/drm_crtc_helper.h>
36 #include <drm/drm_encoder.h>
37 #include <drm/drm_fb_helper.h>
38 #include <drm/drm_dp_dual_mode_helper.h>
39 #include <drm/drm_dp_mst_helper.h>
40 #include <drm/drm_rect.h>
41 #include <drm/drm_atomic.h>
44 * _wait_for - magic (register) wait macro
46 * Does the right thing for modeset paths when run under kdgb or similar atomic
47 * contexts. Note that it's important that we check the condition again after
48 * having timed out, since the timeout could be due to preemption or similar and
49 * we've never had a chance to check the condition before the timeout.
51 * TODO: When modesetting has fully transitioned to atomic, the below
52 * drm_can_sleep() can be removed and in_atomic()/!in_atomic() asserts
55 #define _wait_for(COND, US, W) ({ \
56 unsigned long timeout__ = jiffies + usecs_to_jiffies(US) + 1; \
59 bool expired__ = time_after(jiffies, timeout__); \
68 if ((W) && drm_can_sleep()) { \
69 usleep_range((W), (W)*2); \
77 #define wait_for(COND, MS) _wait_for((COND), (MS) * 1000, 1000)
79 /* If CONFIG_PREEMPT_COUNT is disabled, in_atomic() always reports false. */
80 #if defined(CONFIG_DRM_I915_DEBUG) && defined(CONFIG_PREEMPT_COUNT)
81 # define _WAIT_FOR_ATOMIC_CHECK(ATOMIC) WARN_ON_ONCE((ATOMIC) && !in_atomic())
83 # define _WAIT_FOR_ATOMIC_CHECK(ATOMIC) do { } while (0)
86 #define _wait_for_atomic(COND, US, ATOMIC) \
88 int cpu, ret, timeout = (US) * 1000; \
90 _WAIT_FOR_ATOMIC_CHECK(ATOMIC); \
91 BUILD_BUG_ON((US) > 50000); \
94 cpu = smp_processor_id(); \
96 base = local_clock(); \
98 u64 now = local_clock(); \
105 if (now - base >= timeout) { \
112 if (unlikely(cpu != smp_processor_id())) { \
113 timeout -= now - base; \
114 cpu = smp_processor_id(); \
115 base = local_clock(); \
122 #define wait_for_us(COND, US) \
125 BUILD_BUG_ON(!__builtin_constant_p(US)); \
127 ret__ = _wait_for((COND), (US), 10); \
129 ret__ = _wait_for_atomic((COND), (US), 0); \
133 #define wait_for_atomic(COND, MS) _wait_for_atomic((COND), (MS) * 1000, 1)
134 #define wait_for_atomic_us(COND, US) _wait_for_atomic((COND), (US), 1)
136 #define KHz(x) (1000 * (x))
137 #define MHz(x) KHz(1000 * (x))
140 * Display related stuff
143 /* store information about an Ixxx DVO */
144 /* The i830->i865 use multiple DVOs with multiple i2cs */
145 /* the i915, i945 have a single sDVO i2c bus - which is different */
146 #define MAX_OUTPUTS 6
147 /* maximum connectors per crtcs in the mode set */
149 /* Maximum cursor sizes */
150 #define GEN2_CURSOR_WIDTH 64
151 #define GEN2_CURSOR_HEIGHT 64
152 #define MAX_CURSOR_WIDTH 256
153 #define MAX_CURSOR_HEIGHT 256
155 #define INTEL_I2C_BUS_DVO 1
156 #define INTEL_I2C_BUS_SDVO 2
158 /* these are outputs from the chip - integrated only
159 external chips are via DVO or SDVO output */
160 enum intel_output_type {
161 INTEL_OUTPUT_UNUSED = 0,
162 INTEL_OUTPUT_ANALOG = 1,
163 INTEL_OUTPUT_DVO = 2,
164 INTEL_OUTPUT_SDVO = 3,
165 INTEL_OUTPUT_LVDS = 4,
166 INTEL_OUTPUT_TVOUT = 5,
167 INTEL_OUTPUT_HDMI = 6,
169 INTEL_OUTPUT_EDP = 8,
170 INTEL_OUTPUT_DSI = 9,
171 INTEL_OUTPUT_UNKNOWN = 10,
172 INTEL_OUTPUT_DP_MST = 11,
175 #define INTEL_DVO_CHIP_NONE 0
176 #define INTEL_DVO_CHIP_LVDS 1
177 #define INTEL_DVO_CHIP_TMDS 2
178 #define INTEL_DVO_CHIP_TVOUT 4
180 #define INTEL_DSI_VIDEO_MODE 0
181 #define INTEL_DSI_COMMAND_MODE 1
183 struct intel_framebuffer {
184 struct drm_framebuffer base;
185 struct drm_i915_gem_object *obj;
186 struct intel_rotation_info rot_info;
188 /* for each plane in the normal GTT view */
192 /* for each plane in the rotated GTT view */
195 unsigned int pitch; /* pixels */
200 struct drm_fb_helper helper;
201 struct intel_framebuffer *fb;
202 struct i915_vma *vma;
203 async_cookie_t cookie;
207 struct intel_encoder {
208 struct drm_encoder base;
210 enum intel_output_type type;
212 unsigned int cloneable;
213 void (*hot_plug)(struct intel_encoder *);
214 bool (*compute_config)(struct intel_encoder *,
215 struct intel_crtc_state *,
216 struct drm_connector_state *);
217 void (*pre_pll_enable)(struct intel_encoder *,
218 struct intel_crtc_state *,
219 struct drm_connector_state *);
220 void (*pre_enable)(struct intel_encoder *,
221 struct intel_crtc_state *,
222 struct drm_connector_state *);
223 void (*enable)(struct intel_encoder *,
224 struct intel_crtc_state *,
225 struct drm_connector_state *);
226 void (*disable)(struct intel_encoder *,
227 struct intel_crtc_state *,
228 struct drm_connector_state *);
229 void (*post_disable)(struct intel_encoder *,
230 struct intel_crtc_state *,
231 struct drm_connector_state *);
232 void (*post_pll_disable)(struct intel_encoder *,
233 struct intel_crtc_state *,
234 struct drm_connector_state *);
235 /* Read out the current hw state of this connector, returning true if
236 * the encoder is active. If the encoder is enabled it also set the pipe
237 * it is connected to in the pipe parameter. */
238 bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
239 /* Reconstructs the equivalent mode flags for the current hardware
240 * state. This must be called _after_ display->get_pipe_config has
241 * pre-filled the pipe config. Note that intel_encoder->base.crtc must
242 * be set correctly before calling this function. */
243 void (*get_config)(struct intel_encoder *,
244 struct intel_crtc_state *pipe_config);
245 /* Returns a mask of power domains that need to be referenced as part
246 * of the hardware state readout code. */
247 u64 (*get_power_domains)(struct intel_encoder *encoder);
249 * Called during system suspend after all pending requests for the
250 * encoder are flushed (for example for DP AUX transactions) and
251 * device interrupts are disabled.
253 void (*suspend)(struct intel_encoder *);
255 enum hpd_pin hpd_pin;
256 enum intel_display_power_domain power_domain;
257 /* for communication with audio component; protected by av_mutex */
258 const struct drm_connector *audio_connector;
262 struct drm_display_mode *fixed_mode;
263 struct drm_display_mode *downclock_mode;
273 bool combination_mode; /* gen 2/4 only */
275 bool alternate_pwm_increment; /* lpt+ */
278 bool util_pin_active_low; /* bxt+ */
279 u8 controller; /* bxt+ only */
280 struct pwm_device *pwm;
282 struct backlight_device *device;
284 /* Connector and platform specific backlight functions */
285 int (*setup)(struct intel_connector *connector, enum pipe pipe);
286 uint32_t (*get)(struct intel_connector *connector);
287 void (*set)(struct intel_connector *connector, uint32_t level);
288 void (*disable)(struct intel_connector *connector);
289 void (*enable)(struct intel_connector *connector);
290 uint32_t (*hz_to_pwm)(struct intel_connector *connector,
292 void (*power)(struct intel_connector *, bool enable);
296 struct intel_connector {
297 struct drm_connector base;
299 * The fixed encoder this connector is connected to.
301 struct intel_encoder *encoder;
303 /* ACPI device id for ACPI and driver cooperation */
306 /* Reads out the current hw, returning true if the connector is enabled
307 * and active (i.e. dpms ON state). */
308 bool (*get_hw_state)(struct intel_connector *);
310 /* Panel info for eDP and LVDS */
311 struct intel_panel panel;
313 /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
315 struct edid *detect_edid;
317 /* since POLL and HPD connectors may use the same HPD line keep the native
318 state of connector->polled in case hotplug storm detection changes it */
321 void *port; /* store this opaque as its illegal to dereference it */
323 struct intel_dp *mst_port;
338 struct intel_atomic_state {
339 struct drm_atomic_state base;
343 * Logical state of cdclk (used for all scaling, watermark,
344 * etc. calculations and checks). This is computed as if all
345 * enabled crtcs were active.
347 struct intel_cdclk_state logical;
350 * Actual state of cdclk, can be different from the logical
351 * state only when all crtc's are DPMS off.
353 struct intel_cdclk_state actual;
356 bool dpll_set, modeset;
359 * Does this transaction change the pipes that are active? This mask
360 * tracks which CRTC's have changed their active state at the end of
361 * the transaction (not counting the temporary disable during modesets).
362 * This mask should only be non-zero when intel_state->modeset is true,
363 * but the converse is not necessarily true; simply changing a mode may
364 * not flip the final active status of any CRTC's
366 unsigned int active_pipe_changes;
368 unsigned int active_crtcs;
369 unsigned int min_pixclk[I915_MAX_PIPES];
371 struct intel_shared_dpll_state shared_dpll[I915_NUM_PLLS];
374 * Current watermarks can't be trusted during hardware readout, so
375 * don't bother calculating intermediate watermarks.
377 bool skip_intermediate_wm;
380 struct skl_wm_values wm_results;
382 struct i915_sw_fence commit_ready;
384 struct llist_node freed;
387 struct intel_plane_state {
388 struct drm_plane_state base;
389 struct drm_rect clip;
390 struct i915_vma *vma;
401 /* plane control register */
406 * = -1 : not using a scaler
407 * >= 0 : using a scalers
409 * plane requiring a scaler:
410 * - During check_plane, its bit is set in
411 * crtc_state->scaler_state.scaler_users by calling helper function
412 * update_scaler_plane.
413 * - scaler_id indicates the scaler it got assigned.
415 * plane doesn't require a scaler:
416 * - this can happen when scaling is no more required or plane simply
418 * - During check_plane, corresponding bit is reset in
419 * crtc_state->scaler_state.scaler_users by calling helper function
420 * update_scaler_plane.
424 struct drm_intel_sprite_colorkey ckey;
427 struct intel_initial_plane_config {
428 struct intel_framebuffer *fb;
434 #define SKL_MIN_SRC_W 8
435 #define SKL_MAX_SRC_W 4096
436 #define SKL_MIN_SRC_H 8
437 #define SKL_MAX_SRC_H 4096
438 #define SKL_MIN_DST_W 8
439 #define SKL_MAX_DST_W 4096
440 #define SKL_MIN_DST_H 8
441 #define SKL_MAX_DST_H 4096
443 struct intel_scaler {
448 struct intel_crtc_scaler_state {
449 #define SKL_NUM_SCALERS 2
450 struct intel_scaler scalers[SKL_NUM_SCALERS];
453 * scaler_users: keeps track of users requesting scalers on this crtc.
455 * If a bit is set, a user is using a scaler.
456 * Here user can be a plane or crtc as defined below:
457 * bits 0-30 - plane (bit position is index from drm_plane_index)
460 * Instead of creating a new index to cover planes and crtc, using
461 * existing drm_plane_index for planes which is well less than 31
462 * planes and bit 31 for crtc. This should be fine to cover all
465 * intel_atomic_setup_scalers will setup available scalers to users
466 * requesting scalers. It will gracefully fail if request exceeds
469 #define SKL_CRTC_INDEX 31
470 unsigned scaler_users;
472 /* scaler used by crtc for panel fitting purpose */
476 /* drm_mode->private_flags */
477 #define I915_MODE_FLAG_INHERITED 1
479 struct intel_pipe_wm {
480 struct intel_wm_level wm[5];
481 struct intel_wm_level raw_wm[5];
485 bool sprites_enabled;
489 struct skl_plane_wm {
490 struct skl_wm_level wm[8];
491 struct skl_wm_level trans_wm;
495 struct skl_plane_wm planes[I915_MAX_PLANES];
502 VLV_WM_LEVEL_DDR_DVFS,
506 struct vlv_wm_state {
507 struct vlv_pipe_wm wm[NUM_VLV_WM_LEVELS];
508 struct vlv_sr_wm sr[NUM_VLV_WM_LEVELS];
513 struct vlv_fifo_state {
514 u16 plane[I915_MAX_PLANES];
517 struct intel_crtc_wm_state {
521 * Intermediate watermarks; these can be
522 * programmed immediately since they satisfy
523 * both the current configuration we're
524 * switching away from and the new
525 * configuration we're switching to.
527 struct intel_pipe_wm intermediate;
530 * Optimal watermarks, programmed post-vblank
531 * when this state is committed.
533 struct intel_pipe_wm optimal;
537 /* gen9+ only needs 1-step wm programming */
538 struct skl_pipe_wm optimal;
539 struct skl_ddb_entry ddb;
543 /* "raw" watermarks (not inverted) */
544 struct vlv_pipe_wm raw[NUM_VLV_WM_LEVELS];
545 /* intermediate watermarks (inverted) */
546 struct vlv_wm_state intermediate;
547 /* optimal watermarks (inverted) */
548 struct vlv_wm_state optimal;
549 /* display FIFO split */
550 struct vlv_fifo_state fifo_state;
555 * Platforms with two-step watermark programming will need to
556 * update watermark programming post-vblank to switch from the
557 * safe intermediate watermarks to the optimal final
560 bool need_postvbl_update;
563 struct intel_crtc_state {
564 struct drm_crtc_state base;
567 * quirks - bitfield with hw state readout quirks
569 * For various reasons the hw state readout code might not be able to
570 * completely faithfully read out the current state. These cases are
571 * tracked with quirk flags so that fastboot and state checker can act
574 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS (1<<0) /* unreliable sync mode.flags */
575 unsigned long quirks;
577 unsigned fb_bits; /* framebuffers to flip */
578 bool update_pipe; /* can a fast modeset be performed? */
580 bool update_wm_pre, update_wm_post; /* watermarks are updated */
581 bool fb_changed; /* fb on any of the planes is changed */
582 bool fifo_changed; /* FIFO split is changed */
584 /* Pipe source size (ie. panel fitter input size)
585 * All planes will be positioned inside this space,
586 * and get clipped at the edges. */
587 int pipe_src_w, pipe_src_h;
590 * Pipe pixel rate, adjusted for
591 * panel fitter/pipe scaler downscaling.
593 unsigned int pixel_rate;
595 /* Whether to set up the PCH/FDI. Note that we never allow sharing
596 * between pch encoders and cpu encoders. */
597 bool has_pch_encoder;
599 /* Are we sending infoframes on the attached port */
602 /* CPU Transcoder for the pipe. Currently this can only differ from the
603 * pipe on Haswell and later (where we have a special eDP transcoder)
604 * and Broxton (where we have special DSI transcoders). */
605 enum transcoder cpu_transcoder;
608 * Use reduced/limited/broadcast rbg range, compressing from the full
609 * range fed into the crtcs.
611 bool limited_color_range;
613 /* Bitmask of encoder types (enum intel_output_type)
614 * driven by the pipe.
616 unsigned int output_types;
618 /* Whether we should send NULL infoframes. Required for audio. */
621 /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
622 * has_dp_encoder is set. */
626 * Enable dithering, used when the selected pipe bpp doesn't match the
632 * Dither gets enabled for 18bpp which causes CRC mismatch errors for
633 * compliance video pattern tests.
634 * Disable dither only if it is a compliance test request for
637 bool dither_force_disable;
639 /* Controls for the clock computation, to override various stages. */
642 /* SDVO TV has a bunch of special case. To make multifunction encoders
643 * work correctly, we need to track this at runtime.*/
647 * crtc bandwidth limit, don't increase pipe bpp or clock if not really
648 * required. This is set in the 2nd loop of calling encoder's
649 * ->compute_config if the first pick doesn't work out.
653 /* Settings for the intel dpll used on pretty much everything but
657 /* Selected dpll when shared or NULL. */
658 struct intel_shared_dpll *shared_dpll;
660 /* Actual register state of the dpll, for shared dpll cross-checking. */
661 struct intel_dpll_hw_state dpll_hw_state;
663 /* DSI PLL registers */
669 struct intel_link_m_n dp_m_n;
671 /* m2_n2 for eDP downclock */
672 struct intel_link_m_n dp_m2_n2;
676 * Frequence the dpll for the port should run at. Differs from the
677 * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
678 * already multiplied by pixel_multiplier.
682 /* Used by SDVO (and if we ever fix it, HDMI). */
683 unsigned pixel_multiplier;
688 * Used by platforms having DP/HDMI PHY with programmable lane
689 * latency optimization.
691 uint8_t lane_lat_optim_mask;
693 /* Panel fitter controls for gen2-gen4 + VLV */
697 u32 lvds_border_bits;
700 /* Panel fitter placement and size for Ironlake+ */
708 /* FDI configuration, only valid if has_pch_encoder is set. */
710 struct intel_link_m_n fdi_m_n;
720 struct intel_crtc_scaler_state scaler_state;
722 /* w/a for waiting 2 vblanks during crtc enable */
723 enum pipe hsw_workaround_pipe;
725 /* IVB sprite scaling w/a (WaCxSRDisabledForSpriteScaling:ivb) */
728 struct intel_crtc_wm_state wm;
730 /* Gamma mode programmed on the pipe */
733 /* bitmask of visible planes (enum plane_id) */
736 /* HDMI scrambling status */
737 bool hdmi_scrambling;
739 /* HDMI High TMDS char rate ratio */
740 bool hdmi_high_tmds_clock_ratio;
744 struct drm_crtc base;
747 u8 lut_r[256], lut_g[256], lut_b[256];
749 * Whether the crtc and the connected output pipeline is active. Implies
750 * that crtc->enabled is set, i.e. the current mode configuration has
751 * some outputs connected to this crtc.
756 unsigned long long enabled_power_domains;
757 struct intel_overlay *overlay;
758 struct intel_flip_work *flip_work;
760 atomic_t unpin_work_count;
762 /* Display surface base address adjustement for pageflips. Note that on
763 * gen4+ this only adjusts up to a tile, offsets within a tile are
764 * handled in the hw itself (with the TILEOFF register). */
769 uint32_t cursor_addr;
770 uint32_t cursor_cntl;
771 uint32_t cursor_size;
772 uint32_t cursor_base;
774 struct intel_crtc_state *config;
776 /* global reset count when the last flip was submitted */
777 unsigned int reset_count;
779 /* Access to these should be protected by dev_priv->irq_lock. */
780 bool cpu_fifo_underrun_disabled;
781 bool pch_fifo_underrun_disabled;
783 /* per-pipe watermark state */
785 /* watermarks currently being used */
787 struct intel_pipe_wm ilk;
788 struct vlv_wm_state vlv;
795 unsigned start_vbl_count;
796 ktime_t start_vbl_time;
797 int min_vbl, max_vbl;
801 /* scalers available on this crtc */
806 struct drm_plane base;
812 uint32_t frontbuffer_bit;
815 * NOTE: Do not place new plane state fields here (e.g., when adding
816 * new plane properties). New runtime state should now be placed in
817 * the intel_plane_state structure and accessed via plane_state.
820 void (*update_plane)(struct drm_plane *plane,
821 const struct intel_crtc_state *crtc_state,
822 const struct intel_plane_state *plane_state);
823 void (*disable_plane)(struct drm_plane *plane,
824 struct drm_crtc *crtc);
825 int (*check_plane)(struct drm_plane *plane,
826 struct intel_crtc_state *crtc_state,
827 struct intel_plane_state *state);
830 struct intel_watermark_params {
838 struct cxsr_latency {
844 u16 display_hpll_disable;
846 u16 cursor_hpll_disable;
849 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
850 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
851 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
852 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
853 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
854 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
855 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
856 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
857 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
863 enum drm_dp_dual_mode_type type;
866 bool limited_color_range;
867 bool color_range_auto;
870 enum hdmi_force_audio force_audio;
871 bool rgb_quant_range_selectable;
872 struct intel_connector *attached_connector;
873 void (*write_infoframe)(struct drm_encoder *encoder,
874 const struct intel_crtc_state *crtc_state,
875 enum hdmi_infoframe_type type,
876 const void *frame, ssize_t len);
877 void (*set_infoframes)(struct drm_encoder *encoder,
879 const struct intel_crtc_state *crtc_state,
880 const struct drm_connector_state *conn_state);
881 bool (*infoframe_enabled)(struct drm_encoder *encoder,
882 const struct intel_crtc_state *pipe_config);
885 struct intel_dp_mst_encoder;
886 #define DP_MAX_DOWNSTREAM_PORTS 0x10
890 * When platform provides two set of M_N registers for dp, we can
891 * program them and switch between them incase of DRRS.
892 * But When only one such register is provided, we have to program the
893 * required divider value on that registers itself based on the DRRS state.
895 * M1_N1 : Program dp_m_n on M1_N1 registers
896 * dp_m2_n2 on M2_N2 registers (If supported)
898 * M2_N2 : Program dp_m2_n2 on M1_N1 registers
899 * M2_N2 registers are not supported
903 /* Sets the m1_n1 and m2_n2 */
908 struct intel_dp_desc {
916 struct intel_dp_compliance_data {
918 uint8_t video_pattern;
919 uint16_t hdisplay, vdisplay;
923 struct intel_dp_compliance {
924 unsigned long test_type;
925 struct intel_dp_compliance_data test_data;
932 i915_reg_t output_reg;
933 i915_reg_t aux_ch_ctl_reg;
934 i915_reg_t aux_ch_data_reg[5];
942 bool channel_eq_status;
943 bool reset_link_params;
944 enum hdmi_force_audio force_audio;
945 bool limited_color_range;
946 bool color_range_auto;
947 uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
948 uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
949 uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
950 uint8_t edp_dpcd[EDP_DISPLAY_CTL_CAP_SIZE];
951 /* sink rates as reported by DP_SUPPORTED_LINK_RATES */
952 uint8_t num_sink_rates;
953 int sink_rates[DP_MAX_SUPPORTED_RATES];
954 /* Max lane count for the sink as per DPCD registers */
955 uint8_t max_sink_lane_count;
956 /* Max link BW for the sink as per DPCD registers */
957 int max_sink_link_bw;
958 /* sink or branch descriptor */
959 struct intel_dp_desc desc;
960 struct drm_dp_aux aux;
961 enum intel_display_power_domain aux_power_domain;
962 uint8_t train_set[4];
963 int panel_power_up_delay;
964 int panel_power_down_delay;
965 int panel_power_cycle_delay;
966 int backlight_on_delay;
967 int backlight_off_delay;
968 struct delayed_work panel_vdd_work;
970 unsigned long last_power_on;
971 unsigned long last_backlight_off;
972 ktime_t panel_power_off_time;
974 struct notifier_block edp_notifier;
977 * Pipe whose power sequencer is currently locked into
978 * this port. Only relevant on VLV/CHV.
982 * Pipe currently driving the port. Used for preventing
983 * the use of the PPS for any pipe currentrly driving
984 * external DP as that will mess things up on VLV.
986 enum pipe active_pipe;
988 * Set if the sequencer may be reset due to a power transition,
989 * requiring a reinitialization. Only relevant on BXT.
992 struct edp_power_seq pps_delays;
994 bool can_mst; /* this port supports mst */
996 int active_mst_links;
997 /* connector directly attached - won't be use for modeset in mst world */
998 struct intel_connector *attached_connector;
1000 /* mst connector list */
1001 struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
1002 struct drm_dp_mst_topology_mgr mst_mgr;
1004 uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
1006 * This function returns the value we have to program the AUX_CTL
1007 * register with to kick off an AUX transaction.
1009 uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
1012 uint32_t aux_clock_divider);
1014 /* This is called before a link training is starterd */
1015 void (*prepare_link_retrain)(struct intel_dp *intel_dp);
1017 /* Displayport compliance testing */
1018 struct intel_dp_compliance compliance;
1021 struct intel_lspcon {
1023 enum drm_lspcon_mode mode;
1026 struct intel_digital_port {
1027 struct intel_encoder base;
1029 u32 saved_port_bits;
1031 struct intel_hdmi hdmi;
1032 struct intel_lspcon lspcon;
1033 enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
1034 bool release_cl2_override;
1036 enum intel_display_power_domain ddi_io_power_domain;
1039 struct intel_dp_mst_encoder {
1040 struct intel_encoder base;
1042 struct intel_digital_port *primary;
1043 struct intel_connector *connector;
1046 static inline enum dpio_channel
1047 vlv_dport_to_channel(struct intel_digital_port *dport)
1049 switch (dport->port) {
1060 static inline enum dpio_phy
1061 vlv_dport_to_phy(struct intel_digital_port *dport)
1063 switch (dport->port) {
1074 static inline enum dpio_channel
1075 vlv_pipe_to_channel(enum pipe pipe)
1088 static inline struct intel_crtc *
1089 intel_get_crtc_for_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
1091 return dev_priv->pipe_to_crtc_mapping[pipe];
1094 static inline struct intel_crtc *
1095 intel_get_crtc_for_plane(struct drm_i915_private *dev_priv, enum plane plane)
1097 return dev_priv->plane_to_crtc_mapping[plane];
1100 struct intel_flip_work {
1101 struct work_struct unpin_work;
1102 struct work_struct mmio_work;
1104 struct drm_crtc *crtc;
1105 struct i915_vma *old_vma;
1106 struct drm_framebuffer *old_fb;
1107 struct drm_i915_gem_object *pending_flip_obj;
1108 struct drm_pending_vblank_event *event;
1112 struct drm_i915_gem_request *flip_queued_req;
1113 u32 flip_queued_vblank;
1114 u32 flip_ready_vblank;
1115 unsigned int rotation;
1118 struct intel_load_detect_pipe {
1119 struct drm_atomic_state *restore_state;
1122 static inline struct intel_encoder *
1123 intel_attached_encoder(struct drm_connector *connector)
1125 return to_intel_connector(connector)->encoder;
1128 static inline struct intel_digital_port *
1129 enc_to_dig_port(struct drm_encoder *encoder)
1131 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
1133 switch (intel_encoder->type) {
1134 case INTEL_OUTPUT_UNKNOWN:
1135 WARN_ON(!HAS_DDI(to_i915(encoder->dev)));
1136 case INTEL_OUTPUT_DP:
1137 case INTEL_OUTPUT_EDP:
1138 case INTEL_OUTPUT_HDMI:
1139 return container_of(encoder, struct intel_digital_port,
1146 static inline struct intel_dp_mst_encoder *
1147 enc_to_mst(struct drm_encoder *encoder)
1149 return container_of(encoder, struct intel_dp_mst_encoder, base.base);
1152 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
1154 return &enc_to_dig_port(encoder)->dp;
1157 static inline struct intel_digital_port *
1158 dp_to_dig_port(struct intel_dp *intel_dp)
1160 return container_of(intel_dp, struct intel_digital_port, dp);
1163 static inline struct intel_lspcon *
1164 dp_to_lspcon(struct intel_dp *intel_dp)
1166 return &dp_to_dig_port(intel_dp)->lspcon;
1169 static inline struct intel_digital_port *
1170 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
1172 return container_of(intel_hdmi, struct intel_digital_port, hdmi);
1175 /* intel_fifo_underrun.c */
1176 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1177 enum pipe pipe, bool enable);
1178 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1179 enum transcoder pch_transcoder,
1181 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1183 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1184 enum transcoder pch_transcoder);
1185 void intel_check_cpu_fifo_underruns(struct drm_i915_private *dev_priv);
1186 void intel_check_pch_fifo_underruns(struct drm_i915_private *dev_priv);
1189 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1190 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1191 void gen6_reset_pm_iir(struct drm_i915_private *dev_priv, u32 mask);
1192 void gen6_mask_pm_irq(struct drm_i915_private *dev_priv, u32 mask);
1193 void gen6_unmask_pm_irq(struct drm_i915_private *dev_priv, u32 mask);
1194 void gen6_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1195 void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1196 void gen6_reset_rps_interrupts(struct drm_i915_private *dev_priv);
1197 void gen6_enable_rps_interrupts(struct drm_i915_private *dev_priv);
1198 void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv);
1200 static inline u32 gen6_sanitize_rps_pm_mask(const struct drm_i915_private *i915,
1203 return mask & ~i915->rps.pm_intrmsk_mbz;
1206 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
1207 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
1208 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
1211 * We only use drm_irq_uninstall() at unload and VT switch, so
1212 * this is the only thing we need to check.
1214 return dev_priv->pm.irqs_enabled;
1217 int intel_get_crtc_scanline(struct intel_crtc *crtc);
1218 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
1219 unsigned int pipe_mask);
1220 void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
1221 unsigned int pipe_mask);
1222 void gen9_reset_guc_interrupts(struct drm_i915_private *dev_priv);
1223 void gen9_enable_guc_interrupts(struct drm_i915_private *dev_priv);
1224 void gen9_disable_guc_interrupts(struct drm_i915_private *dev_priv);
1227 void intel_crt_init(struct drm_i915_private *dev_priv);
1228 void intel_crt_reset(struct drm_encoder *encoder);
1231 void intel_ddi_fdi_post_disable(struct intel_encoder *intel_encoder,
1232 struct intel_crtc_state *old_crtc_state,
1233 struct drm_connector_state *old_conn_state);
1234 void hsw_fdi_link_train(struct intel_crtc *crtc,
1235 const struct intel_crtc_state *crtc_state);
1236 void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port);
1237 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
1238 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
1239 void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state);
1240 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
1241 enum transcoder cpu_transcoder);
1242 void intel_ddi_enable_pipe_clock(const struct intel_crtc_state *crtc_state);
1243 void intel_ddi_disable_pipe_clock(const struct intel_crtc_state *crtc_state);
1244 struct intel_encoder *
1245 intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state);
1246 void intel_ddi_set_pipe_settings(const struct intel_crtc_state *crtc_state);
1247 void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
1248 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
1249 bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
1250 struct intel_crtc *intel_crtc);
1251 void intel_ddi_get_config(struct intel_encoder *encoder,
1252 struct intel_crtc_state *pipe_config);
1254 void intel_ddi_clock_get(struct intel_encoder *encoder,
1255 struct intel_crtc_state *pipe_config);
1256 void intel_ddi_set_vc_payload_alloc(const struct intel_crtc_state *crtc_state,
1258 uint32_t ddi_signal_levels(struct intel_dp *intel_dp);
1259 u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder);
1261 unsigned int intel_fb_align_height(const struct drm_framebuffer *fb,
1262 int plane, unsigned int height);
1265 void intel_init_audio_hooks(struct drm_i915_private *dev_priv);
1266 void intel_audio_codec_enable(struct intel_encoder *encoder,
1267 const struct intel_crtc_state *crtc_state,
1268 const struct drm_connector_state *conn_state);
1269 void intel_audio_codec_disable(struct intel_encoder *encoder);
1270 void i915_audio_component_init(struct drm_i915_private *dev_priv);
1271 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
1272 void intel_audio_init(struct drm_i915_private *dev_priv);
1273 void intel_audio_deinit(struct drm_i915_private *dev_priv);
1276 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1277 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1278 void bxt_init_cdclk(struct drm_i915_private *dev_priv);
1279 void bxt_uninit_cdclk(struct drm_i915_private *dev_priv);
1280 void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv);
1281 void intel_update_max_cdclk(struct drm_i915_private *dev_priv);
1282 void intel_update_cdclk(struct drm_i915_private *dev_priv);
1283 void intel_update_rawclk(struct drm_i915_private *dev_priv);
1284 bool intel_cdclk_state_compare(const struct intel_cdclk_state *a,
1285 const struct intel_cdclk_state *b);
1286 void intel_set_cdclk(struct drm_i915_private *dev_priv,
1287 const struct intel_cdclk_state *cdclk_state);
1289 /* intel_display.c */
1290 enum transcoder intel_crtc_pch_transcoder(struct intel_crtc *crtc);
1291 void intel_update_rawclk(struct drm_i915_private *dev_priv);
1292 int vlv_get_hpll_vco(struct drm_i915_private *dev_priv);
1293 int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
1294 const char *name, u32 reg, int ref_freq);
1295 int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv,
1296 const char *name, u32 reg);
1297 void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv);
1298 void lpt_disable_iclkip(struct drm_i915_private *dev_priv);
1299 extern const struct drm_plane_funcs intel_plane_funcs;
1300 void intel_init_display_hooks(struct drm_i915_private *dev_priv);
1301 unsigned int intel_fb_xy_to_linear(int x, int y,
1302 const struct intel_plane_state *state,
1304 void intel_add_fb_offsets(int *x, int *y,
1305 const struct intel_plane_state *state, int plane);
1306 unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info);
1307 bool intel_has_pending_fb_unpin(struct drm_i915_private *dev_priv);
1308 void intel_mark_busy(struct drm_i915_private *dev_priv);
1309 void intel_mark_idle(struct drm_i915_private *dev_priv);
1310 void intel_crtc_restore_mode(struct drm_crtc *crtc);
1311 int intel_display_suspend(struct drm_device *dev);
1312 void intel_pps_unlock_regs_wa(struct drm_i915_private *dev_priv);
1313 void intel_encoder_destroy(struct drm_encoder *encoder);
1314 int intel_connector_init(struct intel_connector *);
1315 struct intel_connector *intel_connector_alloc(void);
1316 bool intel_connector_get_hw_state(struct intel_connector *connector);
1317 void intel_connector_attach_encoder(struct intel_connector *connector,
1318 struct intel_encoder *encoder);
1319 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
1320 struct drm_crtc *crtc);
1321 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
1322 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
1323 struct drm_file *file_priv);
1324 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1327 intel_crtc_has_type(const struct intel_crtc_state *crtc_state,
1328 enum intel_output_type type)
1330 return crtc_state->output_types & (1 << type);
1333 intel_crtc_has_dp_encoder(const struct intel_crtc_state *crtc_state)
1335 return crtc_state->output_types &
1336 ((1 << INTEL_OUTPUT_DP) |
1337 (1 << INTEL_OUTPUT_DP_MST) |
1338 (1 << INTEL_OUTPUT_EDP));
1341 intel_wait_for_vblank(struct drm_i915_private *dev_priv, enum pipe pipe)
1343 drm_wait_one_vblank(&dev_priv->drm, pipe);
1346 intel_wait_for_vblank_if_active(struct drm_i915_private *dev_priv, int pipe)
1348 const struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
1351 intel_wait_for_vblank(dev_priv, pipe);
1354 u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc);
1356 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1357 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1358 struct intel_digital_port *dport,
1359 unsigned int expected_mask);
1360 int intel_get_load_detect_pipe(struct drm_connector *connector,
1361 struct drm_display_mode *mode,
1362 struct intel_load_detect_pipe *old,
1363 struct drm_modeset_acquire_ctx *ctx);
1364 void intel_release_load_detect_pipe(struct drm_connector *connector,
1365 struct intel_load_detect_pipe *old,
1366 struct drm_modeset_acquire_ctx *ctx);
1368 intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb, unsigned int rotation);
1369 void intel_unpin_fb_vma(struct i915_vma *vma);
1370 struct drm_framebuffer *
1371 intel_framebuffer_create(struct drm_i915_gem_object *obj,
1372 struct drm_mode_fb_cmd2 *mode_cmd);
1373 void intel_finish_page_flip_cs(struct drm_i915_private *dev_priv, int pipe);
1374 void intel_finish_page_flip_mmio(struct drm_i915_private *dev_priv, int pipe);
1375 void intel_check_page_flip(struct drm_i915_private *dev_priv, int pipe);
1376 int intel_prepare_plane_fb(struct drm_plane *plane,
1377 struct drm_plane_state *new_state);
1378 void intel_cleanup_plane_fb(struct drm_plane *plane,
1379 struct drm_plane_state *old_state);
1380 int intel_plane_atomic_get_property(struct drm_plane *plane,
1381 const struct drm_plane_state *state,
1382 struct drm_property *property,
1384 int intel_plane_atomic_set_property(struct drm_plane *plane,
1385 struct drm_plane_state *state,
1386 struct drm_property *property,
1388 int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
1389 struct drm_plane_state *plane_state);
1391 void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1394 int vlv_force_pll_on(struct drm_i915_private *dev_priv, enum pipe pipe,
1395 const struct dpll *dpll);
1396 void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe);
1397 int lpt_get_iclkip(struct drm_i915_private *dev_priv);
1399 /* modesetting asserts */
1400 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1402 void assert_pll(struct drm_i915_private *dev_priv,
1403 enum pipe pipe, bool state);
1404 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1405 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1406 void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state);
1407 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1408 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1409 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1410 enum pipe pipe, bool state);
1411 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1412 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1413 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
1414 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1415 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1416 u32 intel_compute_tile_offset(int *x, int *y,
1417 const struct intel_plane_state *state, int plane);
1418 void intel_prepare_reset(struct drm_i915_private *dev_priv);
1419 void intel_finish_reset(struct drm_i915_private *dev_priv);
1420 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1421 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1422 void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv);
1423 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1424 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1425 void gen9_enable_dc5(struct drm_i915_private *dev_priv);
1426 unsigned int skl_cdclk_get_vco(unsigned int freq);
1427 void skl_enable_dc6(struct drm_i915_private *dev_priv);
1428 void skl_disable_dc6(struct drm_i915_private *dev_priv);
1429 void intel_dp_get_m_n(struct intel_crtc *crtc,
1430 struct intel_crtc_state *pipe_config);
1431 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
1432 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1433 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1434 struct dpll *best_clock);
1435 int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
1437 bool intel_crtc_active(struct intel_crtc *crtc);
1438 void hsw_enable_ips(struct intel_crtc *crtc);
1439 void hsw_disable_ips(struct intel_crtc *crtc);
1440 enum intel_display_power_domain intel_port_to_power_domain(enum port port);
1441 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1442 struct intel_crtc_state *pipe_config);
1444 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
1445 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
1447 static inline u32 intel_plane_ggtt_offset(const struct intel_plane_state *state)
1449 return i915_ggtt_offset(state->vma);
1452 u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
1453 const struct intel_plane_state *plane_state);
1454 u32 skl_plane_stride(const struct drm_framebuffer *fb, int plane,
1455 unsigned int rotation);
1456 int skl_check_plane_surface(struct intel_plane_state *plane_state);
1457 int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
1460 void intel_csr_ucode_init(struct drm_i915_private *);
1461 void intel_csr_load_program(struct drm_i915_private *);
1462 void intel_csr_ucode_fini(struct drm_i915_private *);
1463 void intel_csr_ucode_suspend(struct drm_i915_private *);
1464 void intel_csr_ucode_resume(struct drm_i915_private *);
1467 bool intel_dp_init(struct drm_i915_private *dev_priv, i915_reg_t output_reg,
1469 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1470 struct intel_connector *intel_connector);
1471 void intel_dp_set_link_params(struct intel_dp *intel_dp,
1472 int link_rate, uint8_t lane_count,
1474 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
1475 int link_rate, uint8_t lane_count);
1476 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1477 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1478 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1479 void intel_dp_encoder_reset(struct drm_encoder *encoder);
1480 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
1481 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1482 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
1483 bool intel_dp_compute_config(struct intel_encoder *encoder,
1484 struct intel_crtc_state *pipe_config,
1485 struct drm_connector_state *conn_state);
1486 bool intel_dp_is_edp(struct drm_i915_private *dev_priv, enum port port);
1487 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1489 void intel_edp_backlight_on(struct intel_dp *intel_dp);
1490 void intel_edp_backlight_off(struct intel_dp *intel_dp);
1491 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1492 void intel_edp_panel_on(struct intel_dp *intel_dp);
1493 void intel_edp_panel_off(struct intel_dp *intel_dp);
1494 void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector);
1495 void intel_dp_mst_suspend(struct drm_device *dev);
1496 void intel_dp_mst_resume(struct drm_device *dev);
1497 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1498 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1499 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1500 void intel_power_sequencer_reset(struct drm_i915_private *dev_priv);
1501 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1502 void intel_plane_destroy(struct drm_plane *plane);
1503 void intel_edp_drrs_enable(struct intel_dp *intel_dp,
1504 struct intel_crtc_state *crtc_state);
1505 void intel_edp_drrs_disable(struct intel_dp *intel_dp,
1506 struct intel_crtc_state *crtc_state);
1507 void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
1508 unsigned int frontbuffer_bits);
1509 void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
1510 unsigned int frontbuffer_bits);
1513 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
1514 uint8_t dp_train_pat);
1516 intel_dp_set_signal_levels(struct intel_dp *intel_dp);
1517 void intel_dp_set_idle_link_train(struct intel_dp *intel_dp);
1519 intel_dp_voltage_max(struct intel_dp *intel_dp);
1521 intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing);
1522 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
1523 uint8_t *link_bw, uint8_t *rate_select);
1524 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
1526 intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE]);
1528 static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
1530 return ~((1 << lane_count) - 1) & 0xf;
1533 bool intel_dp_read_dpcd(struct intel_dp *intel_dp);
1534 bool __intel_dp_read_desc(struct intel_dp *intel_dp,
1535 struct intel_dp_desc *desc);
1536 bool intel_dp_read_desc(struct intel_dp *intel_dp);
1537 int intel_dp_link_required(int pixel_clock, int bpp);
1538 int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
1539 bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
1540 struct intel_digital_port *port);
1542 /* intel_dp_aux_backlight.c */
1543 int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector);
1545 /* intel_dp_mst.c */
1546 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1547 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1549 void intel_dsi_init(struct drm_i915_private *dev_priv);
1551 /* intel_dsi_dcs_backlight.c */
1552 int intel_dsi_dcs_init_backlight_funcs(struct intel_connector *intel_connector);
1555 void intel_dvo_init(struct drm_i915_private *dev_priv);
1556 /* intel_hotplug.c */
1557 void intel_hpd_poll_init(struct drm_i915_private *dev_priv);
1560 /* legacy fbdev emulation in intel_fbdev.c */
1561 #ifdef CONFIG_DRM_FBDEV_EMULATION
1562 extern int intel_fbdev_init(struct drm_device *dev);
1563 extern void intel_fbdev_initial_config_async(struct drm_device *dev);
1564 extern void intel_fbdev_fini(struct drm_device *dev);
1565 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1566 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1567 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1569 static inline int intel_fbdev_init(struct drm_device *dev)
1574 static inline void intel_fbdev_initial_config_async(struct drm_device *dev)
1578 static inline void intel_fbdev_fini(struct drm_device *dev)
1582 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1586 static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
1590 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1596 void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
1597 struct drm_atomic_state *state);
1598 bool intel_fbc_is_active(struct drm_i915_private *dev_priv);
1599 void intel_fbc_pre_update(struct intel_crtc *crtc,
1600 struct intel_crtc_state *crtc_state,
1601 struct intel_plane_state *plane_state);
1602 void intel_fbc_post_update(struct intel_crtc *crtc);
1603 void intel_fbc_init(struct drm_i915_private *dev_priv);
1604 void intel_fbc_init_pipe_state(struct drm_i915_private *dev_priv);
1605 void intel_fbc_enable(struct intel_crtc *crtc,
1606 struct intel_crtc_state *crtc_state,
1607 struct intel_plane_state *plane_state);
1608 void intel_fbc_disable(struct intel_crtc *crtc);
1609 void intel_fbc_global_disable(struct drm_i915_private *dev_priv);
1610 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1611 unsigned int frontbuffer_bits,
1612 enum fb_op_origin origin);
1613 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1614 unsigned int frontbuffer_bits, enum fb_op_origin origin);
1615 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
1616 void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv);
1619 void intel_hdmi_init(struct drm_i915_private *dev_priv, i915_reg_t hdmi_reg,
1621 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1622 struct intel_connector *intel_connector);
1623 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1624 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1625 struct intel_crtc_state *pipe_config,
1626 struct drm_connector_state *conn_state);
1627 void intel_hdmi_handle_sink_scrambling(struct intel_encoder *intel_encoder,
1628 struct drm_connector *connector,
1629 bool high_tmds_clock_ratio,
1631 void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable);
1635 void intel_lvds_init(struct drm_i915_private *dev_priv);
1636 struct intel_encoder *intel_get_lvds_encoder(struct drm_device *dev);
1637 bool intel_is_dual_link_lvds(struct drm_device *dev);
1641 int intel_connector_update_modes(struct drm_connector *connector,
1643 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1644 void intel_attach_force_audio_property(struct drm_connector *connector);
1645 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1646 void intel_attach_aspect_ratio_property(struct drm_connector *connector);
1649 /* intel_overlay.c */
1650 void intel_setup_overlay(struct drm_i915_private *dev_priv);
1651 void intel_cleanup_overlay(struct drm_i915_private *dev_priv);
1652 int intel_overlay_switch_off(struct intel_overlay *overlay);
1653 int intel_overlay_put_image_ioctl(struct drm_device *dev, void *data,
1654 struct drm_file *file_priv);
1655 int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
1656 struct drm_file *file_priv);
1657 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1661 int intel_panel_init(struct intel_panel *panel,
1662 struct drm_display_mode *fixed_mode,
1663 struct drm_display_mode *downclock_mode);
1664 void intel_panel_fini(struct intel_panel *panel);
1665 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1666 struct drm_display_mode *adjusted_mode);
1667 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1668 struct intel_crtc_state *pipe_config,
1670 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1671 struct intel_crtc_state *pipe_config,
1673 void intel_panel_set_backlight_acpi(struct intel_connector *connector,
1674 u32 level, u32 max);
1675 int intel_panel_setup_backlight(struct drm_connector *connector,
1677 void intel_panel_enable_backlight(struct intel_connector *connector);
1678 void intel_panel_disable_backlight(struct intel_connector *connector);
1679 void intel_panel_destroy_backlight(struct drm_connector *connector);
1680 enum drm_connector_status intel_panel_detect(struct drm_i915_private *dev_priv);
1681 extern struct drm_display_mode *intel_find_panel_downclock(
1682 struct drm_i915_private *dev_priv,
1683 struct drm_display_mode *fixed_mode,
1684 struct drm_connector *connector);
1686 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
1687 int intel_backlight_device_register(struct intel_connector *connector);
1688 void intel_backlight_device_unregister(struct intel_connector *connector);
1689 #else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1690 static int intel_backlight_device_register(struct intel_connector *connector)
1694 static inline void intel_backlight_device_unregister(struct intel_connector *connector)
1697 #endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1701 void intel_psr_enable(struct intel_dp *intel_dp);
1702 void intel_psr_disable(struct intel_dp *intel_dp);
1703 void intel_psr_invalidate(struct drm_i915_private *dev_priv,
1704 unsigned frontbuffer_bits);
1705 void intel_psr_flush(struct drm_i915_private *dev_priv,
1706 unsigned frontbuffer_bits,
1707 enum fb_op_origin origin);
1708 void intel_psr_init(struct drm_i915_private *dev_priv);
1709 void intel_psr_single_frame_update(struct drm_i915_private *dev_priv,
1710 unsigned frontbuffer_bits);
1712 /* intel_runtime_pm.c */
1713 int intel_power_domains_init(struct drm_i915_private *);
1714 void intel_power_domains_fini(struct drm_i915_private *);
1715 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
1716 void intel_power_domains_suspend(struct drm_i915_private *dev_priv);
1717 void intel_power_domains_verify_state(struct drm_i915_private *dev_priv);
1718 void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume);
1719 void bxt_display_core_uninit(struct drm_i915_private *dev_priv);
1720 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1722 intel_display_power_domain_str(enum intel_display_power_domain domain);
1724 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1725 enum intel_display_power_domain domain);
1726 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1727 enum intel_display_power_domain domain);
1728 void intel_display_power_get(struct drm_i915_private *dev_priv,
1729 enum intel_display_power_domain domain);
1730 bool intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
1731 enum intel_display_power_domain domain);
1732 void intel_display_power_put(struct drm_i915_private *dev_priv,
1733 enum intel_display_power_domain domain);
1736 assert_rpm_device_not_suspended(struct drm_i915_private *dev_priv)
1738 WARN_ONCE(dev_priv->pm.suspended,
1739 "Device suspended during HW access\n");
1743 assert_rpm_wakelock_held(struct drm_i915_private *dev_priv)
1745 assert_rpm_device_not_suspended(dev_priv);
1746 WARN_ONCE(!atomic_read(&dev_priv->pm.wakeref_count),
1747 "RPM wakelock ref not held during HW access");
1751 * disable_rpm_wakeref_asserts - disable the RPM assert checks
1752 * @dev_priv: i915 device instance
1754 * This function disable asserts that check if we hold an RPM wakelock
1755 * reference, while keeping the device-not-suspended checks still enabled.
1756 * It's meant to be used only in special circumstances where our rule about
1757 * the wakelock refcount wrt. the device power state doesn't hold. According
1758 * to this rule at any point where we access the HW or want to keep the HW in
1759 * an active state we must hold an RPM wakelock reference acquired via one of
1760 * the intel_runtime_pm_get() helpers. Currently there are a few special spots
1761 * where this rule doesn't hold: the IRQ and suspend/resume handlers, the
1762 * forcewake release timer, and the GPU RPS and hangcheck works. All other
1763 * users should avoid using this function.
1765 * Any calls to this function must have a symmetric call to
1766 * enable_rpm_wakeref_asserts().
1769 disable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1771 atomic_inc(&dev_priv->pm.wakeref_count);
1775 * enable_rpm_wakeref_asserts - re-enable the RPM assert checks
1776 * @dev_priv: i915 device instance
1778 * This function re-enables the RPM assert checks after disabling them with
1779 * disable_rpm_wakeref_asserts. It's meant to be used only in special
1780 * circumstances otherwise its use should be avoided.
1782 * Any calls to this function must have a symmetric call to
1783 * disable_rpm_wakeref_asserts().
1786 enable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1788 atomic_dec(&dev_priv->pm.wakeref_count);
1791 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1792 bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv);
1793 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1794 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1796 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
1798 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
1799 bool override, unsigned int mask);
1800 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
1801 enum dpio_channel ch, bool override);
1805 void intel_init_clock_gating(struct drm_i915_private *dev_priv);
1806 void intel_suspend_hw(struct drm_i915_private *dev_priv);
1807 int ilk_wm_max_level(const struct drm_i915_private *dev_priv);
1808 void intel_update_watermarks(struct intel_crtc *crtc);
1809 void intel_init_pm(struct drm_i915_private *dev_priv);
1810 void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
1811 void intel_pm_setup(struct drm_i915_private *dev_priv);
1812 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
1813 void intel_gpu_ips_teardown(void);
1814 void intel_init_gt_powersave(struct drm_i915_private *dev_priv);
1815 void intel_cleanup_gt_powersave(struct drm_i915_private *dev_priv);
1816 void intel_sanitize_gt_powersave(struct drm_i915_private *dev_priv);
1817 void intel_enable_gt_powersave(struct drm_i915_private *dev_priv);
1818 void intel_autoenable_gt_powersave(struct drm_i915_private *dev_priv);
1819 void intel_disable_gt_powersave(struct drm_i915_private *dev_priv);
1820 void intel_suspend_gt_powersave(struct drm_i915_private *dev_priv);
1821 void gen6_rps_busy(struct drm_i915_private *dev_priv);
1822 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
1823 void gen6_rps_idle(struct drm_i915_private *dev_priv);
1824 void gen6_rps_boost(struct drm_i915_private *dev_priv,
1825 struct intel_rps_client *rps,
1826 unsigned long submitted);
1827 void intel_queue_rps_boost_for_request(struct drm_i915_gem_request *req);
1828 void vlv_wm_get_hw_state(struct drm_device *dev);
1829 void ilk_wm_get_hw_state(struct drm_device *dev);
1830 void skl_wm_get_hw_state(struct drm_device *dev);
1831 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
1832 struct skl_ddb_allocation *ddb /* out */);
1833 void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc,
1834 struct skl_pipe_wm *out);
1835 void vlv_wm_sanitize(struct drm_i915_private *dev_priv);
1836 bool intel_can_enable_sagv(struct drm_atomic_state *state);
1837 int intel_enable_sagv(struct drm_i915_private *dev_priv);
1838 int intel_disable_sagv(struct drm_i915_private *dev_priv);
1839 bool skl_wm_level_equals(const struct skl_wm_level *l1,
1840 const struct skl_wm_level *l2);
1841 bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry **entries,
1842 const struct skl_ddb_entry *ddb,
1844 bool ilk_disable_lp_wm(struct drm_device *dev);
1845 int sanitize_rc6_option(struct drm_i915_private *dev_priv, int enable_rc6);
1846 static inline int intel_enable_rc6(void)
1848 return i915.enable_rc6;
1852 bool intel_sdvo_init(struct drm_i915_private *dev_priv,
1853 i915_reg_t reg, enum port port);
1856 /* intel_sprite.c */
1857 int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
1859 struct intel_plane *intel_sprite_plane_create(struct drm_i915_private *dev_priv,
1860 enum pipe pipe, int plane);
1861 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1862 struct drm_file *file_priv);
1863 void intel_pipe_update_start(struct intel_crtc *crtc);
1864 void intel_pipe_update_end(struct intel_crtc *crtc, struct intel_flip_work *work);
1867 void intel_tv_init(struct drm_i915_private *dev_priv);
1869 /* intel_atomic.c */
1870 int intel_connector_atomic_get_property(struct drm_connector *connector,
1871 const struct drm_connector_state *state,
1872 struct drm_property *property,
1874 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
1875 void intel_crtc_destroy_state(struct drm_crtc *crtc,
1876 struct drm_crtc_state *state);
1877 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
1878 void intel_atomic_state_clear(struct drm_atomic_state *);
1880 static inline struct intel_crtc_state *
1881 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
1882 struct intel_crtc *crtc)
1884 struct drm_crtc_state *crtc_state;
1885 crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
1886 if (IS_ERR(crtc_state))
1887 return ERR_CAST(crtc_state);
1889 return to_intel_crtc_state(crtc_state);
1892 static inline struct intel_crtc_state *
1893 intel_atomic_get_existing_crtc_state(struct drm_atomic_state *state,
1894 struct intel_crtc *crtc)
1896 struct drm_crtc_state *crtc_state;
1898 crtc_state = drm_atomic_get_existing_crtc_state(state, &crtc->base);
1901 return to_intel_crtc_state(crtc_state);
1906 static inline struct intel_plane_state *
1907 intel_atomic_get_existing_plane_state(struct drm_atomic_state *state,
1908 struct intel_plane *plane)
1910 struct drm_plane_state *plane_state;
1912 plane_state = drm_atomic_get_existing_plane_state(state, &plane->base);
1914 return to_intel_plane_state(plane_state);
1917 int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv,
1918 struct intel_crtc *intel_crtc,
1919 struct intel_crtc_state *crtc_state);
1921 /* intel_atomic_plane.c */
1922 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
1923 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
1924 void intel_plane_destroy_state(struct drm_plane *plane,
1925 struct drm_plane_state *state);
1926 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
1927 int intel_plane_atomic_check_with_state(struct intel_crtc_state *crtc_state,
1928 struct intel_plane_state *intel_state);
1931 void intel_color_init(struct drm_crtc *crtc);
1932 int intel_color_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
1933 void intel_color_set_csc(struct drm_crtc_state *crtc_state);
1934 void intel_color_load_luts(struct drm_crtc_state *crtc_state);
1936 /* intel_lspcon.c */
1937 bool lspcon_init(struct intel_digital_port *intel_dig_port);
1938 void lspcon_resume(struct intel_lspcon *lspcon);
1939 void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
1941 /* intel_pipe_crc.c */
1942 int intel_pipe_crc_create(struct drm_minor *minor);
1943 #ifdef CONFIG_DEBUG_FS
1944 int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name,
1945 size_t *values_cnt);
1947 #define intel_crtc_set_crc_source NULL
1949 extern const struct file_operations i915_display_crc_ctl_fops;
1950 #endif /* __INTEL_DRV_H__ */