/*
* Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
* Copyright (c) 2007-2008 Intel Corporation
* Jesse Barnes <jesse.barnes@intel.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef __INTEL_DRV_H__
#define __INTEL_DRV_H__
#include <linux/i2c.h>
#include <drm/i915_drm.h>
#include "i915_drv.h"
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_dp_helper.h>
/**
* _wait_for - magic (register) wait macro
*
* Does the right thing for modeset paths when run under kdgb or similar atomic
* contexts. Note that it's important that we check the condition again after
* having timed out, since the timeout could be due to preemption or similar and
* we've never had a chance to check the condition before the timeout.
*/
#define _wait_for(COND, MS, W) ({ \
unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1; \
int ret__ = 0; \
while (!(COND)) { \
if (time_after(jiffies, timeout__)) { \
if (!(COND)) \
ret__ = -ETIMEDOUT; \
break; \
} \
if (W && drm_can_sleep()) { \
msleep(W); \
} else { \
cpu_relax(); \
} \
} \
ret__; \
})
#define wait_for(COND, MS) _wait_for(COND, MS, 1)
#define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
#define wait_for_atomic_us(COND, US) _wait_for((COND), \
DIV_ROUND_UP((US), 1000), 0)
#define KHz(x) (1000*x)
#define MHz(x) KHz(1000*x)
/*
* Display related stuff
*/
/* store information about an Ixxx DVO */
/* The i830->i865 use multiple DVOs with multiple i2cs */
/* the i915, i945 have a single sDVO i2c bus - which is different */
#define MAX_OUTPUTS 6
/* maximum connectors per crtcs in the mode set */
#define INTELFB_CONN_LIMIT 4
#define INTEL_I2C_BUS_DVO 1
#define INTEL_I2C_BUS_SDVO 2
/* these are outputs from the chip - integrated only
external chips are via DVO or SDVO output */
#define INTEL_OUTPUT_UNUSED 0
#define INTEL_OUTPUT_ANALOG 1
#define INTEL_OUTPUT_DVO 2
#define INTEL_OUTPUT_SDVO 3
#define INTEL_OUTPUT_LVDS 4
#define INTEL_OUTPUT_TVOUT 5
#define INTEL_OUTPUT_HDMI 6
#define INTEL_OUTPUT_DISPLAYPORT 7
#define INTEL_OUTPUT_EDP 8
#define INTEL_OUTPUT_UNKNOWN 9
#define INTEL_DVO_CHIP_NONE 0
#define INTEL_DVO_CHIP_LVDS 1
#define INTEL_DVO_CHIP_TMDS 2
#define INTEL_DVO_CHIP_TVOUT 4
struct intel_framebuffer {
struct drm_framebuffer base;
struct drm_i915_gem_object *obj;
};
struct intel_fbdev {
struct drm_fb_helper helper;
struct intel_framebuffer ifb;
struct list_head fbdev_list;
struct drm_display_mode *our_mode;
};
struct intel_encoder {
struct drm_encoder base;
/*
* The new crtc this encoder will be driven from. Only differs from
* base->crtc while a modeset is in progress.
*/
struct intel_crtc *new_crtc;
int type;
bool needs_tv_clock;
/*
* Intel hw has only one MUX where encoders could be clone, hence a
* simple flag is enough to compute the possible_clones mask.
*/
bool cloneable;
bool connectors_active;
void (*hot_plug)(struct intel_encoder *);
bool (*compute_config)(struct intel_encoder *,
struct intel_crtc_config *);
void (*pre_pll_enable)(struct intel_encoder *);
void (*pre_enable)(struct intel_encoder *);
void (*enable)(struct intel_encoder *);
void (*mode_set)(struct intel_encoder *intel_encoder);
void (*disable)(struct intel_encoder *);
void (*post_disable)(struct intel_encoder *);
/* Read out the current hw state of this connector, returning true if
* the encoder is active. If the encoder is enabled it also set the pipe
* it is connected to in the pipe parameter. */
bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
int crtc_mask;
enum hpd_pin hpd_pin;
};
struct intel_panel {
struct drm_display_mode *fixed_mode;
int fitting_mode;
};
struct intel_connector {
struct drm_connector base;
/*
* The fixed encoder this connector is connected to.
*/
struct intel_encoder *encoder;
/*
* The new encoder this connector will be driven. Only differs from
* encoder while a modeset is in progress.
*/
struct intel_encoder *new_encoder;
/* Reads out the current hw, returning true if the connector is enabled
* and active (i.e. dpms ON state). */
bool (*get_hw_state)(struct intel_connector *);
/* Panel info for eDP and LVDS */
struct intel_panel panel;
/* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
struct edid *edid;
};
struct intel_crtc_config {
struct drm_display_mode requested_mode;
struct drm_display_mode adjusted_mode;
/* This flag must be set by the encoder's compute_config callback if it
* changes the crtc timings in the mode to prevent the crtc fixup from
* overwriting them. Currently only lvds needs that. */
bool timings_set;
/* Whether to set up the PCH/FDI. Note that we never allow sharing
* between pch encoders and cpu encoders. */
bool has_pch_encoder;
/*
* Use reduced/limited/broadcast rbg range, compressing from the full
* range fed into the crtcs.
*/
bool limited_color_range;
/* DP has a bunch of special case unfortunately, so mark the pipe
* accordingly. */
bool has_dp_encoder;
bool dither;
int pipe_bpp;
struct intel_link_m_n dp_m_n;
/**
* This is currently used by DP and HDMI encoders since those can have a
* target pixel clock != the port link clock (which is currently stored
* in adjusted_mode->clock).
*/
int pixel_target_clock;
/* Used by SDVO (and if we ever fix it, HDMI). */
unsigned pixel_multiplier;
};
struct intel_crtc {
struct drm_crtc base;
enum pipe pipe;
enum plane plane;
enum transcoder cpu_transcoder;
u8 lut_r[256], lut_g[256], lut_b[256];
/*
* Whether the crtc and the connected output pipeline is active. Implies
* that crtc->enabled is set, i.e. the current mode configuration has
* some outputs connected to this crtc.
*/
bool active;
bool eld_vld;
bool primary_disabled; /* is the crtc obscured by a plane? */
bool lowfreq_avail;
struct intel_overlay *overlay;
struct intel_unpin_work *unpin_work;
int fdi_lanes;
atomic_t unpin_work_count;
/* Display surface base address adjustement for pageflips. Note that on
* gen4+ this only adjusts up to a tile, offsets within a tile are
* handled in the hw itself (with the TILEOFF register). */
unsigned long dspaddr_offset;
struct drm_i915_gem_object *cursor_bo;
uint32_t cursor_addr;
int16_t cursor_x, cursor_y;
int16_t cursor_width, cursor_height;
bool cursor_visible;
struct intel_crtc_config config;
/* We can share PLLs across outputs if the timings match */
struct intel_pch_pll *pch_pll;
uint32_t ddi_pll_sel;
/* reset counter value when the last flip was submitted */
unsigned int reset_counter;
};
struct intel_plane {
struct drm_plane base;
int plane;
enum pipe pipe;
struct drm_i915_gem_object *obj;
bool can_scale;
int max_downscale;
u32 lut_r[1024], lut_g[1024], lut_b[1024];
int crtc_x, crtc_y;
unsigned int crtc_w, crtc_h;
uint32_t src_x, src_y;
uint32_t src_w, src_h;
void (*update_plane)(struct drm_plane *plane,
struct drm_framebuffer *fb,
struct drm_i915_gem_object *obj,
int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t x, uint32_t y,
uint32_t src_w, uint32_t src_h);
void (*disable_plane)(struct drm_plane *plane);
int (*update_colorkey)(struct drm_plane *plane,
struct drm_intel_sprite_colorkey *key);
void (*get_colorkey)(struct drm_plane *plane,
struct drm_intel_sprite_colorkey *key);
};
struct intel_watermark_params {
unsigned long fifo_size;
unsigned long max_wm;
unsigned long default_wm;
unsigned long guard_size;
unsigned long cacheline_size;
};
struct cxsr_latency {
int is_desktop;
int is_ddr3;
unsigned long fsb_freq;
unsigned long mem_freq;
unsigned long display_sr;
unsigned long display_hpll_disable;
unsigned long cursor_sr;
unsigned long cursor_hpll_disable;
};
#define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
#define to_intel_connector(x) container_of(x, struct intel_connector, base)
#define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
#define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
#define to_intel_plane(x) container_of(x, struct intel_plane, base)
#define DIP_HEADER_SIZE 5
#define DIP_TYPE_AVI 0x82
#define DIP_VERSION_AVI 0x2
#define DIP_LEN_AVI 13
#define DIP_AVI_PR_1 0
#define DIP_AVI_PR_2 1
#define DIP_AVI_RGB_QUANT_RANGE_DEFAULT (0 << 2)
#define DIP_AVI_RGB_QUANT_RANGE_LIMITED (1 << 2)
#define DIP_AVI_RGB_QUANT_RANGE_FULL (2 << 2)
#define DIP_TYPE_SPD 0x83
#define DIP_VERSION_SPD 0x1
#define DIP_LEN_SPD 25
#define DIP_SPD_UNKNOWN 0
#define DIP_SPD_DSTB 0x1
#define DIP_SPD_DVDP 0x2
#define DIP_SPD_DVHS 0x3
#define DIP_SPD_HDDVR 0x4
#define DIP_SPD_DVC 0x5
#define DIP_SPD_DSC 0x6
#define DIP_SPD_VCD 0x7
#define DIP_SPD_GAME 0x8
#define DIP_SPD_PC 0x9
#define DIP_SPD_BD 0xa
#define DIP_SPD_SCD 0xb
struct dip_infoframe {
uint8_t type; /* HB0 */
uint8_t ver; /* HB1 */
uint8_t len; /* HB2 - body len, not including checksum */
uint8_t ecc; /* Header ECC */
uint8_t checksum; /* PB0 */
union {
struct {
/* PB1 - Y 6:5, A 4:4, B 3:2, S 1:0 */
uint8_t Y_A_B_S;
/* PB2 - C 7:6, M 5:4, R 3:0 */
uint8_t C_M_R;
/* PB3 - ITC 7:7, EC 6:4, Q 3:2, SC 1:0 */
uint8_t ITC_EC_Q_SC;
/* PB4 - VIC 6:0 */
uint8_t VIC;
/* PB5 - YQ 7:6, CN 5:4, PR 3:0 */
uint8_t YQ_CN_PR;
/* PB6 to PB13 */
uint16_t top_bar_end;
uint16_t bottom_bar_start;
uint16_t left_bar_end;
uint16_t right_bar_start;
} __attribute__ ((packed)) avi;
struct {
uint8_t vn[8];
uint8_t pd[16];
uint8_t sdi;
} __attribute__ ((packed)) spd;
uint8_t payload[27];
} __attribute__ ((packed)) body;
} __attribute__((packed));
struct intel_hdmi {
u32 hdmi_reg;
int ddc_bus;
uint32_t color_range;
bool color_range_auto;
bool has_hdmi_sink;
bool has_audio;
enum hdmi_force_audio force_audio;
bool rgb_quant_range_selectable;
void (*write_infoframe)(struct drm_encoder *encoder,
struct dip_infoframe *frame);
void (*set_infoframes)(struct drm_encoder *encoder,
struct drm_display_mode *adjusted_mode);
};
#define DP_MAX_DOWNSTREAM_PORTS 0x10
#define DP_LINK_CONFIGURATION_SIZE 9
struct intel_dp {
uint32_t output_reg;
uint32_t aux_ch_ctl_reg;
uint32_t DP;
uint8_t link_configuration[DP_LINK_CONFIGURATION_SIZE];
bool has_audio;
enum hdmi_force_audio force_audio;
uint32_t color_range;
bool color_range_auto;
uint8_t link_bw;
uint8_t lane_count;
uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
struct i2c_adapter adapter;
struct i2c_algo_dp_aux_data algo;
bool is_pch_edp;
uint8_t train_set[4];
int panel_power_up_delay;
int panel_power_down_delay;
int panel_power_cycle_delay;
int backlight_on_delay;
int backlight_off_delay;
struct delayed_work panel_vdd_work;
bool want_panel_vdd;
struct intel_connector *attached_connector;
};
struct intel_digital_port {
struct intel_encoder base;
enum port port;
u32 port_reversal;
struct intel_dp dp;
struct intel_hdmi hdmi;
};
static inline struct drm_crtc *
intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
return dev_priv->pipe_to_crtc_mapping[pipe];
}
static inline struct drm_crtc *
intel_get_crtc_for_plane(struct drm_device *dev, int plane)
{
struct drm_i915_private *dev_priv = dev->dev_private;
return dev_priv->plane_to_crtc_mapping[plane];
}
struct intel_unpin_work {
struct work_struct work;
struct drm_crtc *crtc;
struct drm_i915_gem_object *old_fb_obj;
struct drm_i915_gem_object *pending_flip_obj;
struct drm_pending_vblank_event *event;
atomic_t pending;
#define INTEL_FLIP_INACTIVE 0
#define INTEL_FLIP_PENDING 1
#define INTEL_FLIP_COMPLETE 2
bool enable_stall_check;
};
struct intel_fbc_work {
struct delayed_work work;
struct drm_crtc *crtc;
struct drm_framebuffer *fb;
int interval;
};
int intel_pch_rawclk(struct drm_device *dev);
int intel_connector_update_modes(struct drm_connector *connector,
struct edid *edid);
int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
extern void intel_attach_force_audio_property(struct drm_connector *connector);
extern void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
extern void intel_crt_init(struct drm_device *dev);
extern void intel_hdmi_init(struct drm_device *dev,
int hdmi_reg, enum port port);
extern void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
struct intel_connector *intel_connector);
extern struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
extern bool intel_hdmi_compute_config(struct intel_encoder *encoder,
struct intel_crtc_config *pipe_config);
extern void intel_dip_infoframe_csum(struct dip_infoframe *avi_if);
extern bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg,
bool is_sdvob);
extern void intel_dvo_init(struct drm_device *dev);
extern void intel_tv_init(struct drm_device *dev);
extern void intel_mark_busy(struct drm_device *dev);
extern void intel_mark_fb_busy(struct drm_i915_gem_object *obj);
extern void intel_mark_idle(struct drm_device *dev);
extern bool intel_lvds_init(struct drm_device *dev);
extern bool intel_is_dual_link_lvds(struct drm_device *dev);
extern void intel_dp_init(struct drm_device *dev, int output_reg,
enum port port);
extern void intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
struct intel_connector *intel_connector);
extern void intel_dp_init_link_config(struct intel_dp *intel_dp);
extern void intel_dp_start_link_train(struct intel_dp *intel_dp);
extern void intel_dp_complete_link_train(struct intel_dp *intel_dp);
extern void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
extern void intel_dp_encoder_destroy(struct drm_encoder *encoder);
extern void intel_dp_check_link_status(struct intel_dp *intel_dp);
extern bool intel_dp_compute_config(struct intel_encoder *encoder,
struct intel_crtc_config *pipe_config);
extern bool intel_dpd_is_edp(struct drm_device *dev);
extern void ironlake_edp_backlight_on(struct intel_dp *intel_dp);
extern void ironlake_edp_backlight_off(struct intel_dp *intel_dp);
extern void ironlake_edp_panel_on(struct intel_dp *intel_dp);
extern void ironlake_edp_panel_off(struct intel_dp *intel_dp);
extern void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp);
extern void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync);
extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
extern int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
extern void intel_flush_display_plane(struct drm_i915_private *dev_priv,
enum plane plane);
/* intel_panel.c */
extern int intel_panel_init(struct intel_panel *panel,
struct drm_display_mode *fixed_mode);
extern void intel_panel_fini(struct intel_panel *panel);
extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
struct drm_display_mode *adjusted_mode);
extern void intel_pch_panel_fitting(struct drm_device *dev,
int fitting_mode,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
extern u32 intel_panel_get_max_backlight(struct drm_device *dev);
extern void intel_panel_set_backlight(struct drm_device *dev, u32 level);
extern int intel_panel_setup_backlight(struct drm_connector *connector);
extern void intel_panel_enable_backlight(struct drm_device *dev,
enum pipe pipe);
extern void intel_panel_disable_backlight(struct drm_device *dev);
extern void intel_panel_destroy_backlight(struct drm_device *dev);
extern enum drm_connector_status intel_panel_detect(struct drm_device *dev);
struct intel_set_config {
struct drm_encoder **save_connector_encoders;
struct drm_crtc **save_encoder_crtcs;
bool fb_changed;
bool mode_changed;
};
extern int intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
int x, int y, struct drm_framebuffer *old_fb);
extern void intel_modeset_disable(struct drm_device *dev);
extern void intel_crtc_restore_mode(struct drm_crtc *crtc);
extern void intel_crtc_load_lut(struct drm_crtc *crtc);
extern void intel_crtc_update_dpms(struct drm_crtc *crtc);
extern void intel_encoder_destroy(struct drm_encoder *encoder);
extern void intel_encoder_dpms(struct intel_encoder *encoder, int mode);
extern bool intel_encoder_check_is_cloned(struct intel_encoder *encoder);
extern void intel_connector_dpms(struct drm_connector *, int mode);
extern bool intel_connector_get_hw_state(struct intel_connector *connector);
extern void intel_modeset_check_state(struct drm_device *dev);
extern void intel_plane_restore(struct drm_plane *plane);
static inline struct intel_encoder *intel_attached_encoder(struct drm_connector *connector)
{
return to_intel_connector(connector)->encoder;
}
static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
{
struct intel_digital_port *intel_dig_port =
container_of(encoder, struct intel_digital_port, base.base);
return &intel_dig_port->dp;
}
static inline struct intel_digital_port *
enc_to_dig_port(struct drm_encoder *encoder)
{
return container_of(encoder, struct intel_digital_port, base.base);
}
static inline struct intel_digital_port *
dp_to_dig_port(struct intel_dp *intel_dp)
{
return container_of(intel_dp, struct intel_digital_port, dp);
}
static inline struct intel_digital_port *
hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
{
return container_of(intel_hdmi, struct intel_digital_port, hdmi);
}
bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
struct intel_digital_port *port);
extern void intel_connector_attach_encoder(struct intel_connector *connector,
struct intel_encoder *encoder);
extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
struct drm_crtc *crtc);
int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
enum pipe pipe);
extern void intel_wait_for_vblank(struct drm_device *dev, int pipe);
extern void intel_wait_for_pipe_off(struct drm_device *dev, int pipe);
extern int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
struct intel_load_detect_pipe {
struct drm_framebuffer *release_fb;
bool load_detect_temp;
int dpms_mode;
};
extern bool intel_get_load_detect_pipe(struct drm_connector *connector,
struct drm_display_mode *mode,
struct intel_load_detect_pipe *old);
extern void intel_release_load_detect_pipe(struct drm_connector *connector,
struct intel_load_detect_pipe *old);
extern void intelfb_restore(void);
extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, int regno);
extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
u16 *blue, int regno);
extern void intel_enable_clock_gating(struct drm_device *dev);
extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
struct drm_i915_gem_object *obj,
struct intel_ring_buffer *pipelined);
extern void intel_unpin_fb_obj(struct drm_i915_gem_object *obj);
extern int intel_framebuffer_init(struct drm_device *dev,
struct intel_framebuffer *ifb,
struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_i915_gem_object *obj);
extern int intel_fbdev_init(struct drm_device *dev);
extern void intel_fbdev_initial_config(struct drm_device *dev);
extern void intel_fbdev_fini(struct drm_device *dev);
extern void intel_fbdev_set_suspend(struct drm_device *dev, int state);
extern void intel_prepare_page_flip(struct drm_device *dev, int plane);
extern void intel_finish_page_flip(struct drm_device *dev, int pipe);
extern void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
extern void intel_setup_overlay(struct drm_device *dev);
extern void intel_cleanup_overlay(struct drm_device *dev);
extern int intel_overlay_switch_off(struct intel_overlay *overlay);
extern int intel_overlay_put_image(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int intel_overlay_attrs(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern void intel_fb_output_poll_changed(struct drm_device *dev);
extern void intel_fb_restore_mode(struct drm_device *dev);
extern void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
bool state);
#define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
#define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
extern void intel_init_clock_gating(struct drm_device *dev);
extern void intel_write_eld(struct drm_encoder *encoder,
struct drm_display_mode *mode);
extern void intel_cpt_verify_modeset(struct drm_device *dev, int pipe);
extern void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
struct intel_link_m_n *m_n);
extern void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
struct intel_link_m_n *m_n);
extern void intel_prepare_ddi(struct drm_device *dev);
extern void hsw_fdi_link_train(struct drm_crtc *crtc);
extern void intel_ddi_init(struct drm_device *dev, enum port port);
/* For use by IVB LP watermark workaround in intel_sprite.c */
extern void intel_update_watermarks(struct drm_device *dev);
extern void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
uint32_t sprite_width,
int pixel_size);
extern void intel_update_linetime_watermarks(struct drm_device *dev, int pipe,
struct drm_display_mode *mode);
extern unsigned long intel_gen4_compute_page_offset(int *x, int *y,
unsigned int tiling_mode,
unsigned int bpp,
unsigned int pitch);
extern int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg);
/* Power-related functions, located in intel_pm.c */
extern void intel_init_pm(struct drm_device *dev);
/* FBC */
extern bool intel_fbc_enabled(struct drm_device *dev);
extern void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval);
extern void intel_update_fbc(struct drm_device *dev);
/* IPS */
extern void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
extern void intel_gpu_ips_teardown(void);
extern void intel_init_power_well(struct drm_device *dev);
extern void intel_set_power_well(struct drm_device *dev, bool enable);
extern void intel_enable_gt_powersave(struct drm_device *dev);
extern void intel_disable_gt_powersave(struct drm_device *dev);
extern void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv);
extern void ironlake_teardown_rc6(struct drm_device *dev);
extern bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
enum pipe *pipe);
extern int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv);
extern void intel_ddi_pll_init(struct drm_device *dev);
extern void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
extern void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
enum transcoder cpu_transcoder);
extern void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
extern void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
extern void intel_ddi_setup_hw_pll_state(struct drm_device *dev);
extern bool intel_ddi_pll_mode_set(struct drm_crtc *crtc, int clock);
extern void intel_ddi_put_crtc_pll(struct drm_crtc *crtc);
extern void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
extern void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder);
extern bool
intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
extern void intel_ddi_fdi_disable(struct drm_crtc *crtc);
extern void intel_display_handle_reset(struct drm_device *dev);
#endif /* __INTEL_DRV_H__ */
