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/display/drm_dp_helper.h>
34 #include <drm/drm_crtc.h>
35 #include <drm/drm_edid.h>
36 #include <drm/drm_encoder.h>
37 #include <drm/drm_fixed.h>
38 #include <drm/drm_framebuffer.h>
39 #include <drm/drm_probe_helper.h>
40 #include <linux/i2c.h>
41 #include <linux/i2c-algo-bit.h>
42 #include <linux/hrtimer.h>
43 #include "amdgpu_irq.h"
45 #include <drm/display/drm_dp_mst_helper.h>
46 #include "modules/inc/mod_freesync.h"
47 #include "amdgpu_dm_irq_params.h"
51 struct amdgpu_encoder;
55 #define to_amdgpu_crtc(x) container_of(x, struct amdgpu_crtc, base)
56 #define to_amdgpu_connector(x) container_of(x, struct amdgpu_connector, base)
57 #define to_amdgpu_encoder(x) container_of(x, struct amdgpu_encoder, base)
58 #define to_amdgpu_framebuffer(x) container_of(x, struct amdgpu_framebuffer, base)
60 #define to_dm_plane_state(x) container_of(x, struct dm_plane_state, base)
62 #define AMDGPU_MAX_HPD_PINS 6
63 #define AMDGPU_MAX_CRTCS 6
64 #define AMDGPU_MAX_PLANES 6
65 #define AMDGPU_MAX_AFMT_BLOCKS 9
67 enum amdgpu_rmx_type {
74 enum amdgpu_underscan_type {
80 #define AMDGPU_HPD_CONNECT_INT_DELAY_IN_MS 50
81 #define AMDGPU_HPD_DISCONNECT_INT_DELAY_IN_MS 10
90 AMDGPU_HPD_NONE = 0xff,
93 enum amdgpu_crtc_irq {
94 AMDGPU_CRTC_IRQ_VBLANK1 = 0,
95 AMDGPU_CRTC_IRQ_VBLANK2,
96 AMDGPU_CRTC_IRQ_VBLANK3,
97 AMDGPU_CRTC_IRQ_VBLANK4,
98 AMDGPU_CRTC_IRQ_VBLANK5,
99 AMDGPU_CRTC_IRQ_VBLANK6,
100 AMDGPU_CRTC_IRQ_VLINE1,
101 AMDGPU_CRTC_IRQ_VLINE2,
102 AMDGPU_CRTC_IRQ_VLINE3,
103 AMDGPU_CRTC_IRQ_VLINE4,
104 AMDGPU_CRTC_IRQ_VLINE5,
105 AMDGPU_CRTC_IRQ_VLINE6,
106 AMDGPU_CRTC_IRQ_NONE = 0xff
109 enum amdgpu_pageflip_irq {
110 AMDGPU_PAGEFLIP_IRQ_D1 = 0,
111 AMDGPU_PAGEFLIP_IRQ_D2,
112 AMDGPU_PAGEFLIP_IRQ_D3,
113 AMDGPU_PAGEFLIP_IRQ_D4,
114 AMDGPU_PAGEFLIP_IRQ_D5,
115 AMDGPU_PAGEFLIP_IRQ_D6,
116 AMDGPU_PAGEFLIP_IRQ_NONE = 0xff
119 enum amdgpu_flip_status {
122 AMDGPU_FLIP_SUBMITTED
125 #define AMDGPU_MAX_I2C_BUS 16
127 /* amdgpu gpio-based i2c
128 * 1. "mask" reg and bits
129 * grabs the gpio pins for software use
131 * 2. "a" reg and bits
134 * 3. "en" reg and bits
135 * sets the pin direction
137 * 4. "y" reg and bits
141 struct amdgpu_i2c_bus_rec {
143 /* id used by atom */
145 /* id used by atom */
146 enum amdgpu_hpd_id hpd;
147 /* can be used with hw i2c engine */
149 /* uses multi-media i2c engine */
152 uint32_t mask_clk_reg;
153 uint32_t mask_data_reg;
157 uint32_t en_data_reg;
160 uint32_t mask_clk_mask;
161 uint32_t mask_data_mask;
163 uint32_t a_data_mask;
164 uint32_t en_clk_mask;
165 uint32_t en_data_mask;
167 uint32_t y_data_mask;
170 #define AMDGPU_MAX_BIOS_CONNECTOR 16
173 #define AMDGPU_PLL_USE_BIOS_DIVS (1 << 0)
174 #define AMDGPU_PLL_NO_ODD_POST_DIV (1 << 1)
175 #define AMDGPU_PLL_USE_REF_DIV (1 << 2)
176 #define AMDGPU_PLL_LEGACY (1 << 3)
177 #define AMDGPU_PLL_PREFER_LOW_REF_DIV (1 << 4)
178 #define AMDGPU_PLL_PREFER_HIGH_REF_DIV (1 << 5)
179 #define AMDGPU_PLL_PREFER_LOW_FB_DIV (1 << 6)
180 #define AMDGPU_PLL_PREFER_HIGH_FB_DIV (1 << 7)
181 #define AMDGPU_PLL_PREFER_LOW_POST_DIV (1 << 8)
182 #define AMDGPU_PLL_PREFER_HIGH_POST_DIV (1 << 9)
183 #define AMDGPU_PLL_USE_FRAC_FB_DIV (1 << 10)
184 #define AMDGPU_PLL_PREFER_CLOSEST_LOWER (1 << 11)
185 #define AMDGPU_PLL_USE_POST_DIV (1 << 12)
186 #define AMDGPU_PLL_IS_LCD (1 << 13)
187 #define AMDGPU_PLL_PREFER_MINM_OVER_MAXP (1 << 14)
190 /* reference frequency */
191 uint32_t reference_freq;
194 uint32_t reference_div;
197 /* pll in/out limits */
200 uint32_t pll_out_min;
201 uint32_t pll_out_max;
202 uint32_t lcd_pll_out_min;
203 uint32_t lcd_pll_out_max;
207 uint32_t min_ref_div;
208 uint32_t max_ref_div;
209 uint32_t min_post_div;
210 uint32_t max_post_div;
211 uint32_t min_feedback_div;
212 uint32_t max_feedback_div;
213 uint32_t min_frac_feedback_div;
214 uint32_t max_frac_feedback_div;
216 /* flags for the current clock */
223 struct amdgpu_i2c_chan {
224 struct i2c_adapter adapter;
225 struct drm_device *dev;
226 struct i2c_algo_bit_data bit;
227 struct amdgpu_i2c_bus_rec rec;
228 struct drm_dp_aux aux;
236 bool last_buffer_filled_status;
238 struct amdgpu_audio_pin *pin;
244 struct amdgpu_audio_pin {
255 struct amdgpu_audio {
257 struct amdgpu_audio_pin pin[AMDGPU_MAX_AFMT_BLOCKS];
261 struct amdgpu_display_funcs {
262 /* display watermarks */
263 void (*bandwidth_update)(struct amdgpu_device *adev);
264 /* get frame count */
265 u32 (*vblank_get_counter)(struct amdgpu_device *adev, int crtc);
266 /* set backlight level */
267 void (*backlight_set_level)(struct amdgpu_encoder *amdgpu_encoder,
269 /* get backlight level */
270 u8 (*backlight_get_level)(struct amdgpu_encoder *amdgpu_encoder);
272 bool (*hpd_sense)(struct amdgpu_device *adev, enum amdgpu_hpd_id hpd);
273 void (*hpd_set_polarity)(struct amdgpu_device *adev,
274 enum amdgpu_hpd_id hpd);
275 u32 (*hpd_get_gpio_reg)(struct amdgpu_device *adev);
277 void (*page_flip)(struct amdgpu_device *adev,
278 int crtc_id, u64 crtc_base, bool async);
279 int (*page_flip_get_scanoutpos)(struct amdgpu_device *adev, int crtc,
280 u32 *vbl, u32 *position);
281 /* display topology setup */
282 void (*add_encoder)(struct amdgpu_device *adev,
283 uint32_t encoder_enum,
284 uint32_t supported_device,
286 void (*add_connector)(struct amdgpu_device *adev,
287 uint32_t connector_id,
288 uint32_t supported_device,
290 struct amdgpu_i2c_bus_rec *i2c_bus,
291 uint16_t connector_object_id,
292 struct amdgpu_hpd *hpd,
293 struct amdgpu_router *router);
298 struct amdgpu_framebuffer {
299 struct drm_framebuffer base;
301 uint64_t tiling_flags;
304 /* caching for later use */
308 struct amdgpu_mode_info {
309 struct atom_context *atom_context;
310 struct card_info *atom_card_info;
311 bool mode_config_initialized;
312 struct amdgpu_crtc *crtcs[AMDGPU_MAX_CRTCS];
313 struct drm_plane *planes[AMDGPU_MAX_PLANES];
314 struct amdgpu_afmt *afmt[AMDGPU_MAX_AFMT_BLOCKS];
315 /* DVI-I properties */
316 struct drm_property *coherent_mode_property;
317 /* DAC enable load detect */
318 struct drm_property *load_detect_property;
320 struct drm_property *underscan_property;
321 struct drm_property *underscan_hborder_property;
322 struct drm_property *underscan_vborder_property;
324 struct drm_property *audio_property;
326 struct drm_property *dither_property;
327 /* Adaptive Backlight Modulation (power feature) */
328 struct drm_property *abm_level_property;
329 /* hardcoded DFP edid from BIOS */
330 struct edid *bios_hardcoded_edid;
331 int bios_hardcoded_edid_size;
335 /* pointer to backlight encoder */
336 struct amdgpu_encoder *bl_encoder;
337 u8 bl_level; /* saved backlight level */
338 struct amdgpu_audio audio; /* audio stuff */
339 int num_crtc; /* number of crtcs */
340 int num_hpd; /* number of hpd pins */
341 int num_dig; /* number of dig blocks */
342 bool gpu_vm_support; /* supports display from GTT */
344 const struct amdgpu_display_funcs *funcs;
345 const enum drm_plane_type *plane_type;
348 #define AMDGPU_MAX_BL_LEVEL 0xFF
350 struct amdgpu_backlight_privdata {
351 struct amdgpu_encoder *encoder;
355 struct amdgpu_atom_ss {
357 uint16_t percentage_divider;
369 struct drm_crtc base;
373 uint32_t crtc_offset;
374 struct drm_gem_object *cursor_bo;
375 uint64_t cursor_addr;
382 int max_cursor_width;
383 int max_cursor_height;
384 enum amdgpu_rmx_type rmx_type;
389 struct drm_display_mode native_mode;
392 struct amdgpu_flip_work *pflip_works;
393 enum amdgpu_flip_status pflip_status;
394 int deferred_flip_completion;
395 /* parameters access from DM IRQ handler */
396 struct dm_irq_params dm_irq_params;
398 struct amdgpu_atom_ss ss;
402 u32 pll_reference_div;
405 struct drm_encoder *encoder;
406 struct drm_connector *connector;
411 u32 lb_vblank_lead_lines;
412 struct drm_display_mode hw_mode;
413 /* for virtual dce */
414 struct hrtimer vblank_timer;
415 enum amdgpu_interrupt_state vsync_timer_enabled;
418 struct drm_pending_vblank_event *event;
422 struct drm_writeback_connector *wb_conn;
425 struct amdgpu_encoder_atom_dig {
429 int dig_encoder; /* -1 disabled, 0 DIGA, 1 DIGB, etc. */
432 uint16_t panel_pwr_delay;
435 struct drm_display_mode native_mode;
436 struct backlight_device *bl_dev;
438 uint8_t backlight_level;
440 struct amdgpu_afmt *afmt;
443 struct amdgpu_encoder {
444 struct drm_encoder base;
445 uint32_t encoder_enum;
448 uint32_t active_device;
450 uint32_t pixel_clock;
451 enum amdgpu_rmx_type rmx_type;
452 enum amdgpu_underscan_type underscan_type;
453 uint32_t underscan_hborder;
454 uint32_t underscan_vborder;
455 struct drm_display_mode native_mode;
457 int audio_polling_active;
462 struct amdgpu_connector_atom_dig {
464 u8 dpcd[DP_RECEIVER_CAP_SIZE];
465 u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
472 struct amdgpu_gpio_rec {
481 enum amdgpu_hpd_id hpd;
483 struct amdgpu_gpio_rec gpio;
486 struct amdgpu_router {
488 struct amdgpu_i2c_bus_rec i2c_info;
493 u8 ddc_mux_control_pin;
498 u8 cd_mux_control_pin;
502 enum amdgpu_connector_audio {
503 AMDGPU_AUDIO_DISABLE = 0,
504 AMDGPU_AUDIO_ENABLE = 1,
505 AMDGPU_AUDIO_AUTO = 2
508 enum amdgpu_connector_dither {
509 AMDGPU_FMT_DITHER_DISABLE = 0,
510 AMDGPU_FMT_DITHER_ENABLE = 1,
513 struct amdgpu_dm_dp_aux {
514 struct drm_dp_aux aux;
515 struct ddc_service *ddc_service;
518 struct amdgpu_i2c_adapter {
519 struct i2c_adapter base;
521 struct ddc_service *ddc_service;
524 #define TO_DM_AUX(x) container_of((x), struct amdgpu_dm_dp_aux, aux)
526 struct amdgpu_connector {
527 struct drm_connector base;
528 uint32_t connector_id;
530 struct amdgpu_i2c_chan *ddc_bus;
531 /* some systems have an hdmi and vga port with a shared ddc line */
534 /* we need to mind the EDID between detect
535 and get modes due to analog/digital/tvencoder */
538 bool dac_load_detect;
539 bool detected_by_load; /* if the connection status was determined by load */
540 bool detected_hpd_without_ddc; /* if an HPD signal was detected on DVI, but ddc probing failed */
541 uint16_t connector_object_id;
542 struct amdgpu_hpd hpd;
543 struct amdgpu_router router;
544 struct amdgpu_i2c_chan *router_bus;
545 enum amdgpu_connector_audio audio;
546 enum amdgpu_connector_dither dither;
547 unsigned pixelclock_for_modeset;
550 /* TODO: start to use this struct and remove same field from base one */
551 struct amdgpu_mst_connector {
552 struct amdgpu_connector base;
554 struct drm_dp_mst_topology_mgr mst_mgr;
555 struct amdgpu_dm_dp_aux dm_dp_aux;
556 struct drm_dp_mst_port *mst_output_port;
557 struct amdgpu_connector *mst_root;
558 bool is_mst_connector;
559 struct amdgpu_encoder *mst_encoder;
562 #define ENCODER_MODE_IS_DP(em) (((em) == ATOM_ENCODER_MODE_DP) || \
563 ((em) == ATOM_ENCODER_MODE_DP_MST))
565 /* Driver internal use only flags of amdgpu_display_get_crtc_scanoutpos() */
566 #define DRM_SCANOUTPOS_VALID (1 << 0)
567 #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1)
568 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
569 #define USE_REAL_VBLANKSTART (1 << 30)
570 #define GET_DISTANCE_TO_VBLANKSTART (1 << 31)
572 void amdgpu_link_encoder_connector(struct drm_device *dev);
574 struct drm_connector *
575 amdgpu_get_connector_for_encoder(struct drm_encoder *encoder);
576 struct drm_connector *
577 amdgpu_get_connector_for_encoder_init(struct drm_encoder *encoder);
578 bool amdgpu_dig_monitor_is_duallink(struct drm_encoder *encoder,
581 u16 amdgpu_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder);
582 struct drm_encoder *amdgpu_get_external_encoder(struct drm_encoder *encoder);
584 bool amdgpu_display_ddc_probe(struct amdgpu_connector *amdgpu_connector,
587 void amdgpu_encoder_set_active_device(struct drm_encoder *encoder);
589 int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev,
590 unsigned int pipe, unsigned int flags, int *vpos,
591 int *hpos, ktime_t *stime, ktime_t *etime,
592 const struct drm_display_mode *mode);
594 int amdgpufb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
596 void amdgpu_enc_destroy(struct drm_encoder *encoder);
597 void amdgpu_copy_fb(struct drm_device *dev, struct drm_gem_object *dst_obj);
598 bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
599 const struct drm_display_mode *mode,
600 struct drm_display_mode *adjusted_mode);
601 void amdgpu_panel_mode_fixup(struct drm_encoder *encoder,
602 struct drm_display_mode *adjusted_mode);
603 int amdgpu_display_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc);
605 bool amdgpu_crtc_get_scanout_position(struct drm_crtc *crtc,
606 bool in_vblank_irq, int *vpos,
607 int *hpos, ktime_t *stime, ktime_t *etime,
608 const struct drm_display_mode *mode);
610 /* amdgpu_display.c */
611 void amdgpu_display_print_display_setup(struct drm_device *dev);
612 int amdgpu_display_modeset_create_props(struct amdgpu_device *adev);
613 int amdgpu_display_crtc_set_config(struct drm_mode_set *set,
614 struct drm_modeset_acquire_ctx *ctx);
615 int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
616 struct drm_framebuffer *fb,
617 struct drm_pending_vblank_event *event,
618 uint32_t page_flip_flags, uint32_t target,
619 struct drm_modeset_acquire_ctx *ctx);
620 extern const struct drm_mode_config_funcs amdgpu_mode_funcs;