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      1 /*	$NetBSD: amdgpu_mode.h,v 1.3 2021/12/18 23:44:58 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
      5  *                VA Linux Systems Inc., Fremont, California.
      6  * Copyright 2008 Red Hat Inc.
      7  *
      8  * Permission is hereby granted, free of charge, to any person obtaining a
      9  * copy of this software and associated documentation files (the "Software"),
     10  * to deal in the Software without restriction, including without limitation
     11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     12  * and/or sell copies of the Software, and to permit persons to whom the
     13  * Software is furnished to do so, subject to the following conditions:
     14  *
     15  * The above copyright notice and this permission notice shall be included in
     16  * all copies or substantial portions of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     21  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     24  * OTHER DEALINGS IN THE SOFTWARE.
     25  *
     26  * Original Authors:
     27  *   Kevin E. Martin, Rickard E. Faith, Alan Hourihane
     28  *
     29  * Kernel port Author: Dave Airlie
     30  */
     31 
     32 #ifndef AMDGPU_MODE_H
     33 #define AMDGPU_MODE_H
     34 
     35 #include <drm/drm_crtc.h>
     36 #include <drm/drm_edid.h>
     37 #include <drm/drm_encoder.h>
     38 #include <drm/drm_dp_helper.h>
     39 #include <drm/drm_fixed.h>
     40 #include <drm/drm_crtc_helper.h>
     41 #include <drm/drm_fb_helper.h>
     42 #include <drm/drm_plane_helper.h>
     43 #include <drm/drm_probe_helper.h>
     44 #include <linux/i2c.h>
     45 #include <linux/i2c-algo-bit.h>
     46 #include <linux/hrtimer.h>
     47 #include "amdgpu_irq.h"
     48 
     49 #include <drm/drm_dp_mst_helper.h>
     50 #include "modules/inc/mod_freesync.h"
     51 
     52 struct amdgpu_bo;
     53 struct amdgpu_device;
     54 struct amdgpu_encoder;
     55 struct amdgpu_router;
     56 struct amdgpu_hpd;
     57 
     58 #define to_amdgpu_crtc(x) container_of(x, struct amdgpu_crtc, base)
     59 #define to_amdgpu_connector(x) container_of(x, struct amdgpu_connector, base)
     60 #define to_amdgpu_encoder(x) container_of(x, struct amdgpu_encoder, base)
     61 #define to_amdgpu_framebuffer(x) container_of(x, struct amdgpu_framebuffer, base)
     62 
     63 #define to_dm_plane_state(x)	container_of(x, struct dm_plane_state, base)
     64 
     65 #define AMDGPU_MAX_HPD_PINS 6
     66 #define AMDGPU_MAX_CRTCS 6
     67 #define AMDGPU_MAX_PLANES 6
     68 #define AMDGPU_MAX_AFMT_BLOCKS 9
     69 
     70 enum amdgpu_rmx_type {
     71 	RMX_OFF,
     72 	RMX_FULL,
     73 	RMX_CENTER,
     74 	RMX_ASPECT
     75 };
     76 
     77 enum amdgpu_underscan_type {
     78 	UNDERSCAN_OFF,
     79 	UNDERSCAN_ON,
     80 	UNDERSCAN_AUTO,
     81 };
     82 
     83 #define AMDGPU_HPD_CONNECT_INT_DELAY_IN_MS 50
     84 #define AMDGPU_HPD_DISCONNECT_INT_DELAY_IN_MS 10
     85 
     86 enum amdgpu_hpd_id {
     87 	AMDGPU_HPD_1 = 0,
     88 	AMDGPU_HPD_2,
     89 	AMDGPU_HPD_3,
     90 	AMDGPU_HPD_4,
     91 	AMDGPU_HPD_5,
     92 	AMDGPU_HPD_6,
     93 	AMDGPU_HPD_NONE = 0xff,
     94 };
     95 
     96 enum amdgpu_crtc_irq {
     97 	AMDGPU_CRTC_IRQ_VBLANK1 = 0,
     98 	AMDGPU_CRTC_IRQ_VBLANK2,
     99 	AMDGPU_CRTC_IRQ_VBLANK3,
    100 	AMDGPU_CRTC_IRQ_VBLANK4,
    101 	AMDGPU_CRTC_IRQ_VBLANK5,
    102 	AMDGPU_CRTC_IRQ_VBLANK6,
    103 	AMDGPU_CRTC_IRQ_VLINE1,
    104 	AMDGPU_CRTC_IRQ_VLINE2,
    105 	AMDGPU_CRTC_IRQ_VLINE3,
    106 	AMDGPU_CRTC_IRQ_VLINE4,
    107 	AMDGPU_CRTC_IRQ_VLINE5,
    108 	AMDGPU_CRTC_IRQ_VLINE6,
    109 	AMDGPU_CRTC_IRQ_NONE = 0xff
    110 };
    111 
    112 enum amdgpu_pageflip_irq {
    113 	AMDGPU_PAGEFLIP_IRQ_D1 = 0,
    114 	AMDGPU_PAGEFLIP_IRQ_D2,
    115 	AMDGPU_PAGEFLIP_IRQ_D3,
    116 	AMDGPU_PAGEFLIP_IRQ_D4,
    117 	AMDGPU_PAGEFLIP_IRQ_D5,
    118 	AMDGPU_PAGEFLIP_IRQ_D6,
    119 	AMDGPU_PAGEFLIP_IRQ_NONE = 0xff
    120 };
    121 
    122 enum amdgpu_flip_status {
    123 	AMDGPU_FLIP_NONE,
    124 	AMDGPU_FLIP_PENDING,
    125 	AMDGPU_FLIP_SUBMITTED
    126 };
    127 
    128 #define AMDGPU_MAX_I2C_BUS 16
    129 
    130 /* amdgpu gpio-based i2c
    131  * 1. "mask" reg and bits
    132  *    grabs the gpio pins for software use
    133  *    0=not held  1=held
    134  * 2. "a" reg and bits
    135  *    output pin value
    136  *    0=low 1=high
    137  * 3. "en" reg and bits
    138  *    sets the pin direction
    139  *    0=input 1=output
    140  * 4. "y" reg and bits
    141  *    input pin value
    142  *    0=low 1=high
    143  */
    144 struct amdgpu_i2c_bus_rec {
    145 	bool valid;
    146 	/* id used by atom */
    147 	uint8_t i2c_id;
    148 	/* id used by atom */
    149 	enum amdgpu_hpd_id hpd;
    150 	/* can be used with hw i2c engine */
    151 	bool hw_capable;
    152 	/* uses multi-media i2c engine */
    153 	bool mm_i2c;
    154 	/* regs and bits */
    155 	uint32_t mask_clk_reg;
    156 	uint32_t mask_data_reg;
    157 	uint32_t a_clk_reg;
    158 	uint32_t a_data_reg;
    159 	uint32_t en_clk_reg;
    160 	uint32_t en_data_reg;
    161 	uint32_t y_clk_reg;
    162 	uint32_t y_data_reg;
    163 	uint32_t mask_clk_mask;
    164 	uint32_t mask_data_mask;
    165 	uint32_t a_clk_mask;
    166 	uint32_t a_data_mask;
    167 	uint32_t en_clk_mask;
    168 	uint32_t en_data_mask;
    169 	uint32_t y_clk_mask;
    170 	uint32_t y_data_mask;
    171 };
    172 
    173 #define AMDGPU_MAX_BIOS_CONNECTOR 16
    174 
    175 /* pll flags */
    176 #define AMDGPU_PLL_USE_BIOS_DIVS        (1 << 0)
    177 #define AMDGPU_PLL_NO_ODD_POST_DIV      (1 << 1)
    178 #define AMDGPU_PLL_USE_REF_DIV          (1 << 2)
    179 #define AMDGPU_PLL_LEGACY               (1 << 3)
    180 #define AMDGPU_PLL_PREFER_LOW_REF_DIV   (1 << 4)
    181 #define AMDGPU_PLL_PREFER_HIGH_REF_DIV  (1 << 5)
    182 #define AMDGPU_PLL_PREFER_LOW_FB_DIV    (1 << 6)
    183 #define AMDGPU_PLL_PREFER_HIGH_FB_DIV   (1 << 7)
    184 #define AMDGPU_PLL_PREFER_LOW_POST_DIV  (1 << 8)
    185 #define AMDGPU_PLL_PREFER_HIGH_POST_DIV (1 << 9)
    186 #define AMDGPU_PLL_USE_FRAC_FB_DIV      (1 << 10)
    187 #define AMDGPU_PLL_PREFER_CLOSEST_LOWER (1 << 11)
    188 #define AMDGPU_PLL_USE_POST_DIV         (1 << 12)
    189 #define AMDGPU_PLL_IS_LCD               (1 << 13)
    190 #define AMDGPU_PLL_PREFER_MINM_OVER_MAXP (1 << 14)
    191 
    192 struct amdgpu_pll {
    193 	/* reference frequency */
    194 	uint32_t reference_freq;
    195 
    196 	/* fixed dividers */
    197 	uint32_t reference_div;
    198 	uint32_t post_div;
    199 
    200 	/* pll in/out limits */
    201 	uint32_t pll_in_min;
    202 	uint32_t pll_in_max;
    203 	uint32_t pll_out_min;
    204 	uint32_t pll_out_max;
    205 	uint32_t lcd_pll_out_min;
    206 	uint32_t lcd_pll_out_max;
    207 	uint32_t best_vco;
    208 
    209 	/* divider limits */
    210 	uint32_t min_ref_div;
    211 	uint32_t max_ref_div;
    212 	uint32_t min_post_div;
    213 	uint32_t max_post_div;
    214 	uint32_t min_feedback_div;
    215 	uint32_t max_feedback_div;
    216 	uint32_t min_frac_feedback_div;
    217 	uint32_t max_frac_feedback_div;
    218 
    219 	/* flags for the current clock */
    220 	uint32_t flags;
    221 
    222 	/* pll id */
    223 	uint32_t id;
    224 };
    225 
    226 struct amdgpu_i2c_chan {
    227 	struct i2c_adapter adapter;
    228 	struct drm_device *dev;
    229 	struct i2c_algo_bit_data bit;
    230 	struct amdgpu_i2c_bus_rec rec;
    231 	struct drm_dp_aux aux;
    232 	bool has_aux;
    233 	struct mutex mutex;
    234 };
    235 
    236 struct amdgpu_fbdev;
    237 
    238 struct amdgpu_afmt {
    239 	bool enabled;
    240 	int offset;
    241 	bool last_buffer_filled_status;
    242 	int id;
    243 	struct amdgpu_audio_pin *pin;
    244 };
    245 
    246 /*
    247  * Audio
    248  */
    249 struct amdgpu_audio_pin {
    250 	int			channels;
    251 	int			rate;
    252 	int			bits_per_sample;
    253 	u8			status_bits;
    254 	u8			category_code;
    255 	u32			offset;
    256 	bool			connected;
    257 	u32			id;
    258 };
    259 
    260 struct amdgpu_audio {
    261 	bool enabled;
    262 	struct amdgpu_audio_pin pin[AMDGPU_MAX_AFMT_BLOCKS];
    263 	int num_pins;
    264 };
    265 
    266 struct amdgpu_display_funcs {
    267 	/* display watermarks */
    268 	void (*bandwidth_update)(struct amdgpu_device *adev);
    269 	/* get frame count */
    270 	u32 (*vblank_get_counter)(struct amdgpu_device *adev, int crtc);
    271 	/* set backlight level */
    272 	void (*backlight_set_level)(struct amdgpu_encoder *amdgpu_encoder,
    273 				    u8 level);
    274 	/* get backlight level */
    275 	u8 (*backlight_get_level)(struct amdgpu_encoder *amdgpu_encoder);
    276 	/* hotplug detect */
    277 	bool (*hpd_sense)(struct amdgpu_device *adev, enum amdgpu_hpd_id hpd);
    278 	void (*hpd_set_polarity)(struct amdgpu_device *adev,
    279 				 enum amdgpu_hpd_id hpd);
    280 	u32 (*hpd_get_gpio_reg)(struct amdgpu_device *adev);
    281 	/* pageflipping */
    282 	void (*page_flip)(struct amdgpu_device *adev,
    283 			  int crtc_id, u64 crtc_base, bool async);
    284 	int (*page_flip_get_scanoutpos)(struct amdgpu_device *adev, int crtc,
    285 					u32 *vbl, u32 *position);
    286 	/* display topology setup */
    287 	void (*add_encoder)(struct amdgpu_device *adev,
    288 			    uint32_t encoder_enum,
    289 			    uint32_t supported_device,
    290 			    u16 caps);
    291 	void (*add_connector)(struct amdgpu_device *adev,
    292 			      uint32_t connector_id,
    293 			      uint32_t supported_device,
    294 			      int connector_type,
    295 			      struct amdgpu_i2c_bus_rec *i2c_bus,
    296 			      uint16_t connector_object_id,
    297 			      struct amdgpu_hpd *hpd,
    298 			      struct amdgpu_router *router);
    299 
    300 
    301 };
    302 
    303 struct amdgpu_framebuffer {
    304 	struct drm_framebuffer base;
    305 
    306 	/* caching for later use */
    307 	uint64_t address;
    308 };
    309 
    310 struct amdgpu_fbdev {
    311 	struct drm_fb_helper helper;
    312 	struct amdgpu_framebuffer rfb;
    313 	struct list_head fbdev_list;
    314 	struct amdgpu_device *adev;
    315 };
    316 
    317 struct amdgpu_mode_info {
    318 	struct atom_context *atom_context;
    319 	struct card_info *atom_card_info;
    320 	bool mode_config_initialized;
    321 	struct amdgpu_crtc *crtcs[AMDGPU_MAX_CRTCS];
    322 	struct drm_plane *planes[AMDGPU_MAX_PLANES];
    323 	struct amdgpu_afmt *afmt[AMDGPU_MAX_AFMT_BLOCKS];
    324 	/* DVI-I properties */
    325 	struct drm_property *coherent_mode_property;
    326 	/* DAC enable load detect */
    327 	struct drm_property *load_detect_property;
    328 	/* underscan */
    329 	struct drm_property *underscan_property;
    330 	struct drm_property *underscan_hborder_property;
    331 	struct drm_property *underscan_vborder_property;
    332 	/* audio */
    333 	struct drm_property *audio_property;
    334 	/* FMT dithering */
    335 	struct drm_property *dither_property;
    336 	/* Adaptive Backlight Modulation (power feature) */
    337 	struct drm_property *abm_level_property;
    338 	/* hardcoded DFP edid from BIOS */
    339 	struct edid *bios_hardcoded_edid;
    340 	int bios_hardcoded_edid_size;
    341 
    342 	/* pointer to fbdev info structure */
    343 	struct amdgpu_fbdev *rfbdev;
    344 	/* firmware flags */
    345 	u16 firmware_flags;
    346 	/* pointer to backlight encoder */
    347 	struct amdgpu_encoder *bl_encoder;
    348 	u8 bl_level; /* saved backlight level */
    349 	struct amdgpu_audio	audio; /* audio stuff */
    350 	int			num_crtc; /* number of crtcs */
    351 	int			num_hpd; /* number of hpd pins */
    352 	int			num_dig; /* number of dig blocks */
    353 	int			disp_priority;
    354 	const struct amdgpu_display_funcs *funcs;
    355 	const enum drm_plane_type *plane_type;
    356 };
    357 
    358 #define AMDGPU_MAX_BL_LEVEL 0xFF
    359 
    360 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
    361 
    362 struct amdgpu_backlight_privdata {
    363 	struct amdgpu_encoder *encoder;
    364 	uint8_t negative;
    365 };
    366 
    367 #endif
    368 
    369 struct amdgpu_atom_ss {
    370 	uint16_t percentage;
    371 	uint16_t percentage_divider;
    372 	uint8_t type;
    373 	uint16_t step;
    374 	uint8_t delay;
    375 	uint8_t range;
    376 	uint8_t refdiv;
    377 	/* asic_ss */
    378 	uint16_t rate;
    379 	uint16_t amount;
    380 };
    381 
    382 struct amdgpu_crtc {
    383 	struct drm_crtc base;
    384 	int crtc_id;
    385 	bool enabled;
    386 	bool can_tile;
    387 	uint32_t crtc_offset;
    388 	struct drm_gem_object *cursor_bo;
    389 	uint64_t cursor_addr;
    390 	int cursor_x;
    391 	int cursor_y;
    392 	int cursor_hot_x;
    393 	int cursor_hot_y;
    394 	int cursor_width;
    395 	int cursor_height;
    396 	int max_cursor_width;
    397 	int max_cursor_height;
    398 	enum amdgpu_rmx_type rmx_type;
    399 	u8 h_border;
    400 	u8 v_border;
    401 	fixed20_12 vsc;
    402 	fixed20_12 hsc;
    403 	struct drm_display_mode native_mode;
    404 	u32 pll_id;
    405 	/* page flipping */
    406 	struct amdgpu_flip_work *pflip_works;
    407 	enum amdgpu_flip_status pflip_status;
    408 	int deferred_flip_completion;
    409 	u32 last_flip_vblank;
    410 	/* pll sharing */
    411 	struct amdgpu_atom_ss ss;
    412 	bool ss_enabled;
    413 	u32 adjusted_clock;
    414 	int bpc;
    415 	u32 pll_reference_div;
    416 	u32 pll_post_div;
    417 	u32 pll_flags;
    418 	struct drm_encoder *encoder;
    419 	struct drm_connector *connector;
    420 	/* for dpm */
    421 	u32 line_time;
    422 	u32 wm_low;
    423 	u32 wm_high;
    424 	u32 lb_vblank_lead_lines;
    425 	struct drm_display_mode hw_mode;
    426 	/* for virtual dce */
    427 	struct hrtimer vblank_timer;
    428 	enum amdgpu_interrupt_state vsync_timer_enabled;
    429 
    430 	int otg_inst;
    431 	struct drm_pending_vblank_event *event;
    432 };
    433 
    434 struct amdgpu_encoder_atom_dig {
    435 	bool linkb;
    436 	/* atom dig */
    437 	bool coherent_mode;
    438 	int dig_encoder; /* -1 disabled, 0 DIGA, 1 DIGB, etc. */
    439 	/* atom lvds/edp */
    440 	uint32_t lcd_misc;
    441 	uint16_t panel_pwr_delay;
    442 	uint32_t lcd_ss_id;
    443 	/* panel mode */
    444 	struct drm_display_mode native_mode;
    445 	struct backlight_device *bl_dev;
    446 	int dpms_mode;
    447 	uint8_t backlight_level;
    448 	int panel_mode;
    449 	struct amdgpu_afmt *afmt;
    450 };
    451 
    452 struct amdgpu_encoder {
    453 	struct drm_encoder base;
    454 	uint32_t encoder_enum;
    455 	uint32_t encoder_id;
    456 	uint32_t devices;
    457 	uint32_t active_device;
    458 	uint32_t flags;
    459 	uint32_t pixel_clock;
    460 	enum amdgpu_rmx_type rmx_type;
    461 	enum amdgpu_underscan_type underscan_type;
    462 	uint32_t underscan_hborder;
    463 	uint32_t underscan_vborder;
    464 	struct drm_display_mode native_mode;
    465 	void *enc_priv;
    466 	int audio_polling_active;
    467 	bool is_ext_encoder;
    468 	u16 caps;
    469 };
    470 
    471 struct amdgpu_connector_atom_dig {
    472 	/* displayport */
    473 	u8 dpcd[DP_RECEIVER_CAP_SIZE];
    474 	u8 dp_sink_type;
    475 	int dp_clock;
    476 	int dp_lane_count;
    477 	bool edp_on;
    478 };
    479 
    480 struct amdgpu_gpio_rec {
    481 	bool valid;
    482 	u8 id;
    483 	u32 reg;
    484 	u32 mask;
    485 	u32 shift;
    486 };
    487 
    488 struct amdgpu_hpd {
    489 	enum amdgpu_hpd_id hpd;
    490 	u8 plugged_state;
    491 	struct amdgpu_gpio_rec gpio;
    492 };
    493 
    494 struct amdgpu_router {
    495 	u32 router_id;
    496 	struct amdgpu_i2c_bus_rec i2c_info;
    497 	u8 i2c_addr;
    498 	/* i2c mux */
    499 	bool ddc_valid;
    500 	u8 ddc_mux_type;
    501 	u8 ddc_mux_control_pin;
    502 	u8 ddc_mux_state;
    503 	/* clock/data mux */
    504 	bool cd_valid;
    505 	u8 cd_mux_type;
    506 	u8 cd_mux_control_pin;
    507 	u8 cd_mux_state;
    508 };
    509 
    510 enum amdgpu_connector_audio {
    511 	AMDGPU_AUDIO_DISABLE = 0,
    512 	AMDGPU_AUDIO_ENABLE = 1,
    513 	AMDGPU_AUDIO_AUTO = 2
    514 };
    515 
    516 enum amdgpu_connector_dither {
    517 	AMDGPU_FMT_DITHER_DISABLE = 0,
    518 	AMDGPU_FMT_DITHER_ENABLE = 1,
    519 };
    520 
    521 struct amdgpu_dm_dp_aux {
    522 	struct drm_dp_aux aux;
    523 	struct ddc_service *ddc_service;
    524 };
    525 
    526 struct amdgpu_i2c_adapter {
    527 	struct i2c_adapter base;
    528 
    529 	struct ddc_service *ddc_service;
    530 };
    531 
    532 #define TO_DM_AUX(x) container_of((x), struct amdgpu_dm_dp_aux, aux)
    533 
    534 struct amdgpu_connector {
    535 	struct drm_connector base;
    536 	uint32_t connector_id;
    537 	uint32_t devices;
    538 	struct amdgpu_i2c_chan *ddc_bus;
    539 	/* some systems have an hdmi and vga port with a shared ddc line */
    540 	bool shared_ddc;
    541 	bool use_digital;
    542 	/* we need to mind the EDID between detect
    543 	   and get modes due to analog/digital/tvencoder */
    544 	struct edid *edid;
    545 	void *con_priv;
    546 	bool dac_load_detect;
    547 	bool detected_by_load; /* if the connection status was determined by load */
    548 	uint16_t connector_object_id;
    549 	struct amdgpu_hpd hpd;
    550 	struct amdgpu_router router;
    551 	struct amdgpu_i2c_chan *router_bus;
    552 	enum amdgpu_connector_audio audio;
    553 	enum amdgpu_connector_dither dither;
    554 	unsigned pixelclock_for_modeset;
    555 };
    556 
    557 /* TODO: start to use this struct and remove same field from base one */
    558 struct amdgpu_mst_connector {
    559 	struct amdgpu_connector base;
    560 
    561 	struct drm_dp_mst_topology_mgr mst_mgr;
    562 	struct amdgpu_dm_dp_aux dm_dp_aux;
    563 	struct drm_dp_mst_port *port;
    564 	struct amdgpu_connector *mst_port;
    565 	bool is_mst_connector;
    566 	struct amdgpu_encoder *mst_encoder;
    567 };
    568 
    569 #define ENCODER_MODE_IS_DP(em) (((em) == ATOM_ENCODER_MODE_DP) || \
    570 				((em) == ATOM_ENCODER_MODE_DP_MST))
    571 
    572 /* Driver internal use only flags of amdgpu_display_get_crtc_scanoutpos() */
    573 #define DRM_SCANOUTPOS_VALID        (1 << 0)
    574 #define DRM_SCANOUTPOS_IN_VBLANK    (1 << 1)
    575 #define DRM_SCANOUTPOS_ACCURATE     (1 << 2)
    576 #define USE_REAL_VBLANKSTART		(1 << 30)
    577 #define GET_DISTANCE_TO_VBLANKSTART	(1 << 31)
    578 
    579 void amdgpu_link_encoder_connector(struct drm_device *dev);
    580 
    581 struct drm_connector *
    582 amdgpu_get_connector_for_encoder(struct drm_encoder *encoder);
    583 struct drm_connector *
    584 amdgpu_get_connector_for_encoder_init(struct drm_encoder *encoder);
    585 bool amdgpu_dig_monitor_is_duallink(struct drm_encoder *encoder,
    586 				    u32 pixel_clock);
    587 
    588 u16 amdgpu_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder);
    589 struct drm_encoder *amdgpu_get_external_encoder(struct drm_encoder *encoder);
    590 
    591 bool amdgpu_display_ddc_probe(struct amdgpu_connector *amdgpu_connector,
    592 			      bool use_aux);
    593 
    594 void amdgpu_encoder_set_active_device(struct drm_encoder *encoder);
    595 
    596 int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev,
    597 			unsigned int pipe, unsigned int flags, int *vpos,
    598 			int *hpos, ktime_t *stime, ktime_t *etime,
    599 			const struct drm_display_mode *mode);
    600 
    601 int amdgpu_display_framebuffer_init(struct drm_device *dev,
    602 				    struct amdgpu_framebuffer *rfb,
    603 				    const struct drm_mode_fb_cmd2 *mode_cmd,
    604 				    struct drm_gem_object *obj);
    605 
    606 int amdgpufb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
    607 
    608 void amdgpu_enc_destroy(struct drm_encoder *encoder);
    609 void amdgpu_copy_fb(struct drm_device *dev, struct drm_gem_object *dst_obj);
    610 bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
    611 				const struct drm_display_mode *mode,
    612 				struct drm_display_mode *adjusted_mode);
    613 void amdgpu_panel_mode_fixup(struct drm_encoder *encoder,
    614 			     struct drm_display_mode *adjusted_mode);
    615 int amdgpu_display_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc);
    616 
    617 /* fbdev layer */
    618 int amdgpu_fbdev_init(struct amdgpu_device *adev);
    619 void amdgpu_fbdev_fini(struct amdgpu_device *adev);
    620 void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state);
    621 int amdgpu_fbdev_total_size(struct amdgpu_device *adev);
    622 bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj);
    623 
    624 int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int bpp, bool tiled);
    625 
    626 /* amdgpu_display.c */
    627 void amdgpu_display_print_display_setup(struct drm_device *dev);
    628 int amdgpu_display_modeset_create_props(struct amdgpu_device *adev);
    629 int amdgpu_display_crtc_set_config(struct drm_mode_set *set,
    630 				   struct drm_modeset_acquire_ctx *ctx);
    631 int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
    632 				struct drm_framebuffer *fb,
    633 				struct drm_pending_vblank_event *event,
    634 				uint32_t page_flip_flags, uint32_t target,
    635 				struct drm_modeset_acquire_ctx *ctx);
    636 extern const struct drm_mode_config_funcs amdgpu_mode_funcs;
    637 
    638 #endif
    639