2 * Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
3 * VA Linux Systems Inc., Fremont, California.
4 * Copyright 2008 Red Hat Inc.
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 shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
25 * Kevin E. Martin, Rickard E. Faith, Alan Hourihane
27 * Kernel port Author: Dave Airlie
33 #include <drm/drm_crtc.h>
34 #include <drm/drm_edid.h>
35 #include <drm/drm_encoder.h>
36 #include <drm/drm_dp_helper.h>
37 #include <drm/drm_fixed.h>
38 #include <drm/drm_crtc_helper.h>
39 #include <drm/drm_fb_helper.h>
40 #include <drm/drm_plane_helper.h>
41 #include <drm/drm_fb_helper.h>
42 #include <linux/i2c.h>
43 #include <linux/i2c-algo-bit.h>
44 #include <linux/hrtimer.h>
45 #include "amdgpu_irq.h"
47 #include <drm/drm_dp_mst_helper.h>
48 #include "modules/inc/mod_freesync.h"
52 struct amdgpu_encoder;
56 #define to_amdgpu_crtc(x) container_of(x, struct amdgpu_crtc, base)
57 #define to_amdgpu_connector(x) container_of(x, struct amdgpu_connector, base)
58 #define to_amdgpu_encoder(x) container_of(x, struct amdgpu_encoder, base)
59 #define to_amdgpu_framebuffer(x) container_of(x, struct amdgpu_framebuffer, base)
60 #define to_amdgpu_plane(x) container_of(x, struct amdgpu_plane, base)
62 #define to_dm_plane_state(x) container_of(x, struct dm_plane_state, base);
64 #define AMDGPU_MAX_HPD_PINS 6
65 #define AMDGPU_MAX_CRTCS 6
66 #define AMDGPU_MAX_PLANES 6
67 #define AMDGPU_MAX_AFMT_BLOCKS 9
69 enum amdgpu_rmx_type {
76 enum amdgpu_underscan_type {
82 #define AMDGPU_HPD_CONNECT_INT_DELAY_IN_MS 50
83 #define AMDGPU_HPD_DISCONNECT_INT_DELAY_IN_MS 10
93 AMDGPU_HPD_NONE = 0xff,
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_LAST,
110 AMDGPU_CRTC_IRQ_NONE = 0xff
113 enum amdgpu_pageflip_irq {
114 AMDGPU_PAGEFLIP_IRQ_D1 = 0,
115 AMDGPU_PAGEFLIP_IRQ_D2,
116 AMDGPU_PAGEFLIP_IRQ_D3,
117 AMDGPU_PAGEFLIP_IRQ_D4,
118 AMDGPU_PAGEFLIP_IRQ_D5,
119 AMDGPU_PAGEFLIP_IRQ_D6,
120 AMDGPU_PAGEFLIP_IRQ_LAST,
121 AMDGPU_PAGEFLIP_IRQ_NONE = 0xff
124 enum amdgpu_flip_status {
127 AMDGPU_FLIP_SUBMITTED
130 #define AMDGPU_MAX_I2C_BUS 16
132 /* amdgpu gpio-based i2c
133 * 1. "mask" reg and bits
134 * grabs the gpio pins for software use
136 * 2. "a" reg and bits
139 * 3. "en" reg and bits
140 * sets the pin direction
142 * 4. "y" reg and bits
146 struct amdgpu_i2c_bus_rec {
148 /* id used by atom */
150 /* id used by atom */
151 enum amdgpu_hpd_id hpd;
152 /* can be used with hw i2c engine */
154 /* uses multi-media i2c engine */
157 uint32_t mask_clk_reg;
158 uint32_t mask_data_reg;
162 uint32_t en_data_reg;
165 uint32_t mask_clk_mask;
166 uint32_t mask_data_mask;
168 uint32_t a_data_mask;
169 uint32_t en_clk_mask;
170 uint32_t en_data_mask;
172 uint32_t y_data_mask;
175 #define AMDGPU_MAX_BIOS_CONNECTOR 16
178 #define AMDGPU_PLL_USE_BIOS_DIVS (1 << 0)
179 #define AMDGPU_PLL_NO_ODD_POST_DIV (1 << 1)
180 #define AMDGPU_PLL_USE_REF_DIV (1 << 2)
181 #define AMDGPU_PLL_LEGACY (1 << 3)
182 #define AMDGPU_PLL_PREFER_LOW_REF_DIV (1 << 4)
183 #define AMDGPU_PLL_PREFER_HIGH_REF_DIV (1 << 5)
184 #define AMDGPU_PLL_PREFER_LOW_FB_DIV (1 << 6)
185 #define AMDGPU_PLL_PREFER_HIGH_FB_DIV (1 << 7)
186 #define AMDGPU_PLL_PREFER_LOW_POST_DIV (1 << 8)
187 #define AMDGPU_PLL_PREFER_HIGH_POST_DIV (1 << 9)
188 #define AMDGPU_PLL_USE_FRAC_FB_DIV (1 << 10)
189 #define AMDGPU_PLL_PREFER_CLOSEST_LOWER (1 << 11)
190 #define AMDGPU_PLL_USE_POST_DIV (1 << 12)
191 #define AMDGPU_PLL_IS_LCD (1 << 13)
192 #define AMDGPU_PLL_PREFER_MINM_OVER_MAXP (1 << 14)
195 /* reference frequency */
196 uint32_t reference_freq;
199 uint32_t reference_div;
202 /* pll in/out limits */
205 uint32_t pll_out_min;
206 uint32_t pll_out_max;
207 uint32_t lcd_pll_out_min;
208 uint32_t lcd_pll_out_max;
212 uint32_t min_ref_div;
213 uint32_t max_ref_div;
214 uint32_t min_post_div;
215 uint32_t max_post_div;
216 uint32_t min_feedback_div;
217 uint32_t max_feedback_div;
218 uint32_t min_frac_feedback_div;
219 uint32_t max_frac_feedback_div;
221 /* flags for the current clock */
228 struct amdgpu_i2c_chan {
229 struct i2c_adapter adapter;
230 struct drm_device *dev;
231 struct i2c_algo_bit_data bit;
232 struct amdgpu_i2c_bus_rec rec;
233 struct drm_dp_aux aux;
243 bool last_buffer_filled_status;
245 struct amdgpu_audio_pin *pin;
251 struct amdgpu_audio_pin {
262 struct amdgpu_audio {
264 struct amdgpu_audio_pin pin[AMDGPU_MAX_AFMT_BLOCKS];
268 struct amdgpu_display_funcs {
269 /* display watermarks */
270 void (*bandwidth_update)(struct amdgpu_device *adev);
271 /* get frame count */
272 u32 (*vblank_get_counter)(struct amdgpu_device *adev, int crtc);
273 /* wait for vblank */
274 void (*vblank_wait)(struct amdgpu_device *adev, int crtc);
275 /* set backlight level */
276 void (*backlight_set_level)(struct amdgpu_encoder *amdgpu_encoder,
278 /* get backlight level */
279 u8 (*backlight_get_level)(struct amdgpu_encoder *amdgpu_encoder);
281 bool (*hpd_sense)(struct amdgpu_device *adev, enum amdgpu_hpd_id hpd);
282 void (*hpd_set_polarity)(struct amdgpu_device *adev,
283 enum amdgpu_hpd_id hpd);
284 u32 (*hpd_get_gpio_reg)(struct amdgpu_device *adev);
286 void (*page_flip)(struct amdgpu_device *adev,
287 int crtc_id, u64 crtc_base, bool async);
288 int (*page_flip_get_scanoutpos)(struct amdgpu_device *adev, int crtc,
289 u32 *vbl, u32 *position);
290 /* display topology setup */
291 void (*add_encoder)(struct amdgpu_device *adev,
292 uint32_t encoder_enum,
293 uint32_t supported_device,
295 void (*add_connector)(struct amdgpu_device *adev,
296 uint32_t connector_id,
297 uint32_t supported_device,
299 struct amdgpu_i2c_bus_rec *i2c_bus,
300 uint16_t connector_object_id,
301 struct amdgpu_hpd *hpd,
302 struct amdgpu_router *router);
303 /* it is used to enter or exit into free sync mode */
304 int (*notify_freesync)(struct drm_device *dev, void *data,
305 struct drm_file *filp);
306 /* it is used to allow enablement of freesync mode */
307 int (*set_freesync_property)(struct drm_connector *connector,
308 struct drm_property *property,
314 struct amdgpu_framebuffer {
315 struct drm_framebuffer base;
316 struct drm_gem_object *obj;
318 /* caching for later use */
322 struct amdgpu_fbdev {
323 struct drm_fb_helper helper;
324 struct amdgpu_framebuffer rfb;
325 struct list_head fbdev_list;
326 struct amdgpu_device *adev;
329 struct amdgpu_mode_info {
330 struct atom_context *atom_context;
331 struct card_info *atom_card_info;
332 bool mode_config_initialized;
333 struct amdgpu_crtc *crtcs[AMDGPU_MAX_CRTCS];
334 struct amdgpu_plane *planes[AMDGPU_MAX_PLANES];
335 struct amdgpu_afmt *afmt[AMDGPU_MAX_AFMT_BLOCKS];
336 /* DVI-I properties */
337 struct drm_property *coherent_mode_property;
338 /* DAC enable load detect */
339 struct drm_property *load_detect_property;
341 struct drm_property *underscan_property;
342 struct drm_property *underscan_hborder_property;
343 struct drm_property *underscan_vborder_property;
345 struct drm_property *audio_property;
347 struct drm_property *dither_property;
348 /* hardcoded DFP edid from BIOS */
349 struct edid *bios_hardcoded_edid;
350 int bios_hardcoded_edid_size;
352 /* pointer to fbdev info structure */
353 struct amdgpu_fbdev *rfbdev;
356 /* pointer to backlight encoder */
357 struct amdgpu_encoder *bl_encoder;
358 struct amdgpu_audio audio; /* audio stuff */
359 int num_crtc; /* number of crtcs */
360 int num_hpd; /* number of hpd pins */
361 int num_dig; /* number of dig blocks */
363 const struct amdgpu_display_funcs *funcs;
364 const enum drm_plane_type *plane_type;
367 #define AMDGPU_MAX_BL_LEVEL 0xFF
369 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
371 struct amdgpu_backlight_privdata {
372 struct amdgpu_encoder *encoder;
378 struct amdgpu_atom_ss {
380 uint16_t percentage_divider;
392 struct drm_crtc base;
396 uint32_t crtc_offset;
397 struct drm_gem_object *cursor_bo;
398 uint64_t cursor_addr;
405 int max_cursor_width;
406 int max_cursor_height;
407 enum amdgpu_rmx_type rmx_type;
412 struct drm_display_mode native_mode;
415 struct amdgpu_flip_work *pflip_works;
416 enum amdgpu_flip_status pflip_status;
417 int deferred_flip_completion;
419 struct amdgpu_atom_ss ss;
423 u32 pll_reference_div;
426 struct drm_encoder *encoder;
427 struct drm_connector *connector;
432 u32 lb_vblank_lead_lines;
433 struct drm_display_mode hw_mode;
434 /* for virtual dce */
435 struct hrtimer vblank_timer;
436 enum amdgpu_interrupt_state vsync_timer_enabled;
439 struct drm_pending_vblank_event *event;
442 struct amdgpu_plane {
443 struct drm_plane base;
444 enum drm_plane_type plane_type;
447 struct amdgpu_encoder_atom_dig {
451 int dig_encoder; /* -1 disabled, 0 DIGA, 1 DIGB, etc. */
454 uint16_t panel_pwr_delay;
457 struct drm_display_mode native_mode;
458 struct backlight_device *bl_dev;
460 uint8_t backlight_level;
462 struct amdgpu_afmt *afmt;
465 struct amdgpu_encoder {
466 struct drm_encoder base;
467 uint32_t encoder_enum;
470 uint32_t active_device;
472 uint32_t pixel_clock;
473 enum amdgpu_rmx_type rmx_type;
474 enum amdgpu_underscan_type underscan_type;
475 uint32_t underscan_hborder;
476 uint32_t underscan_vborder;
477 struct drm_display_mode native_mode;
479 int audio_polling_active;
484 struct amdgpu_connector_atom_dig {
486 u8 dpcd[DP_RECEIVER_CAP_SIZE];
493 struct amdgpu_gpio_rec {
502 enum amdgpu_hpd_id hpd;
504 struct amdgpu_gpio_rec gpio;
507 struct amdgpu_router {
509 struct amdgpu_i2c_bus_rec i2c_info;
514 u8 ddc_mux_control_pin;
519 u8 cd_mux_control_pin;
523 enum amdgpu_connector_audio {
524 AMDGPU_AUDIO_DISABLE = 0,
525 AMDGPU_AUDIO_ENABLE = 1,
526 AMDGPU_AUDIO_AUTO = 2
529 enum amdgpu_connector_dither {
530 AMDGPU_FMT_DITHER_DISABLE = 0,
531 AMDGPU_FMT_DITHER_ENABLE = 1,
534 struct amdgpu_dm_dp_aux {
535 struct drm_dp_aux aux;
536 struct ddc_service *ddc_service;
539 struct amdgpu_i2c_adapter {
540 struct i2c_adapter base;
542 struct ddc_service *ddc_service;
545 #define TO_DM_AUX(x) container_of((x), struct amdgpu_dm_dp_aux, aux)
547 struct amdgpu_connector {
548 struct drm_connector base;
549 uint32_t connector_id;
551 struct amdgpu_i2c_chan *ddc_bus;
552 /* some systems have an hdmi and vga port with a shared ddc line */
555 /* we need to mind the EDID between detect
556 and get modes due to analog/digital/tvencoder */
558 /* number of modes generated from EDID at 'dc_sink' */
560 /* The 'old' sink - before an HPD.
561 * The 'current' sink is in dc_link->sink. */
562 struct dc_sink *dc_sink;
563 struct dc_link *dc_link;
564 struct dc_sink *dc_em_sink;
565 const struct dc_stream *stream;
567 bool dac_load_detect;
568 bool detected_by_load; /* if the connection status was determined by load */
569 uint16_t connector_object_id;
570 struct amdgpu_hpd hpd;
571 struct amdgpu_router router;
572 struct amdgpu_i2c_chan *router_bus;
573 enum amdgpu_connector_audio audio;
574 enum amdgpu_connector_dither dither;
575 unsigned pixelclock_for_modeset;
577 struct drm_dp_mst_topology_mgr mst_mgr;
578 struct amdgpu_dm_dp_aux dm_dp_aux;
579 struct drm_dp_mst_port *port;
580 struct amdgpu_connector *mst_port;
581 struct amdgpu_encoder *mst_encoder;
582 struct semaphore mst_sem;
584 /* TODO see if we can merge with ddc_bus or make a dm_connector */
585 struct amdgpu_i2c_adapter *i2c;
587 /* Monitor range limits */
593 struct mod_freesync_caps caps;
595 struct mutex hpd_lock;
599 /* TODO: start to use this struct and remove same field from base one */
600 struct amdgpu_mst_connector {
601 struct amdgpu_connector base;
603 struct drm_dp_mst_topology_mgr mst_mgr;
604 struct amdgpu_dm_dp_aux dm_dp_aux;
605 struct drm_dp_mst_port *port;
606 struct amdgpu_connector *mst_port;
607 bool is_mst_connector;
608 struct amdgpu_encoder *mst_encoder;
611 #define ENCODER_MODE_IS_DP(em) (((em) == ATOM_ENCODER_MODE_DP) || \
612 ((em) == ATOM_ENCODER_MODE_DP_MST))
614 /* Driver internal use only flags of amdgpu_get_crtc_scanoutpos() */
615 #define DRM_SCANOUTPOS_VALID (1 << 0)
616 #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1)
617 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
618 #define USE_REAL_VBLANKSTART (1 << 30)
619 #define GET_DISTANCE_TO_VBLANKSTART (1 << 31)
621 void amdgpu_link_encoder_connector(struct drm_device *dev);
623 struct drm_connector *
624 amdgpu_get_connector_for_encoder(struct drm_encoder *encoder);
625 struct drm_connector *
626 amdgpu_get_connector_for_encoder_init(struct drm_encoder *encoder);
627 bool amdgpu_dig_monitor_is_duallink(struct drm_encoder *encoder,
630 u16 amdgpu_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder);
631 struct drm_encoder *amdgpu_get_external_encoder(struct drm_encoder *encoder);
633 bool amdgpu_ddc_probe(struct amdgpu_connector *amdgpu_connector, bool use_aux);
635 void amdgpu_encoder_set_active_device(struct drm_encoder *encoder);
637 int amdgpu_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
638 unsigned int flags, int *vpos, int *hpos,
639 ktime_t *stime, ktime_t *etime,
640 const struct drm_display_mode *mode);
642 int amdgpu_framebuffer_init(struct drm_device *dev,
643 struct amdgpu_framebuffer *rfb,
644 const struct drm_mode_fb_cmd2 *mode_cmd,
645 struct drm_gem_object *obj);
647 int amdgpufb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
649 void amdgpu_enc_destroy(struct drm_encoder *encoder);
650 void amdgpu_copy_fb(struct drm_device *dev, struct drm_gem_object *dst_obj);
651 bool amdgpu_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
652 const struct drm_display_mode *mode,
653 struct drm_display_mode *adjusted_mode);
654 void amdgpu_panel_mode_fixup(struct drm_encoder *encoder,
655 struct drm_display_mode *adjusted_mode);
656 int amdgpu_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc);
659 int amdgpu_fbdev_init(struct amdgpu_device *adev);
660 void amdgpu_fbdev_fini(struct amdgpu_device *adev);
661 void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state);
662 int amdgpu_fbdev_total_size(struct amdgpu_device *adev);
663 bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj);
664 void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev);
666 void amdgpu_fb_output_poll_changed(struct amdgpu_device *adev);
669 int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int bpp, bool tiled);
671 /* amdgpu_display.c */
672 void amdgpu_print_display_setup(struct drm_device *dev);
673 int amdgpu_modeset_create_props(struct amdgpu_device *adev);
674 int amdgpu_crtc_set_config(struct drm_mode_set *set,
675 struct drm_modeset_acquire_ctx *ctx);
676 int amdgpu_crtc_page_flip_target(struct drm_crtc *crtc,
677 struct drm_framebuffer *fb,
678 struct drm_pending_vblank_event *event,
679 uint32_t page_flip_flags, uint32_t target,
680 struct drm_modeset_acquire_ctx *ctx);
681 extern const struct drm_mode_config_funcs amdgpu_mode_funcs;