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 <linux/i2c.h>
42 #include <linux/i2c-algo-bit.h>
43 #include <linux/hrtimer.h>
44 #include "amdgpu_irq.h"
48 struct amdgpu_encoder;
52 #define to_amdgpu_crtc(x) container_of(x, struct amdgpu_crtc, base)
53 #define to_amdgpu_connector(x) container_of(x, struct amdgpu_connector, base)
54 #define to_amdgpu_encoder(x) container_of(x, struct amdgpu_encoder, base)
55 #define to_amdgpu_framebuffer(x) container_of(x, struct amdgpu_framebuffer, base)
57 #define AMDGPU_MAX_HPD_PINS 6
58 #define AMDGPU_MAX_CRTCS 6
59 #define AMDGPU_MAX_AFMT_BLOCKS 9
61 enum amdgpu_rmx_type {
68 enum amdgpu_underscan_type {
74 #define AMDGPU_HPD_CONNECT_INT_DELAY_IN_MS 50
75 #define AMDGPU_HPD_DISCONNECT_INT_DELAY_IN_MS 10
85 AMDGPU_HPD_NONE = 0xff,
88 enum amdgpu_crtc_irq {
89 AMDGPU_CRTC_IRQ_VBLANK1 = 0,
90 AMDGPU_CRTC_IRQ_VBLANK2,
91 AMDGPU_CRTC_IRQ_VBLANK3,
92 AMDGPU_CRTC_IRQ_VBLANK4,
93 AMDGPU_CRTC_IRQ_VBLANK5,
94 AMDGPU_CRTC_IRQ_VBLANK6,
95 AMDGPU_CRTC_IRQ_VLINE1,
96 AMDGPU_CRTC_IRQ_VLINE2,
97 AMDGPU_CRTC_IRQ_VLINE3,
98 AMDGPU_CRTC_IRQ_VLINE4,
99 AMDGPU_CRTC_IRQ_VLINE5,
100 AMDGPU_CRTC_IRQ_VLINE6,
101 AMDGPU_CRTC_IRQ_LAST,
102 AMDGPU_CRTC_IRQ_NONE = 0xff
105 enum amdgpu_pageflip_irq {
106 AMDGPU_PAGEFLIP_IRQ_D1 = 0,
107 AMDGPU_PAGEFLIP_IRQ_D2,
108 AMDGPU_PAGEFLIP_IRQ_D3,
109 AMDGPU_PAGEFLIP_IRQ_D4,
110 AMDGPU_PAGEFLIP_IRQ_D5,
111 AMDGPU_PAGEFLIP_IRQ_D6,
112 AMDGPU_PAGEFLIP_IRQ_LAST,
113 AMDGPU_PAGEFLIP_IRQ_NONE = 0xff
116 enum amdgpu_flip_status {
119 AMDGPU_FLIP_SUBMITTED
122 #define AMDGPU_MAX_I2C_BUS 16
124 /* amdgpu gpio-based i2c
125 * 1. "mask" reg and bits
126 * grabs the gpio pins for software use
128 * 2. "a" reg and bits
131 * 3. "en" reg and bits
132 * sets the pin direction
134 * 4. "y" reg and bits
138 struct amdgpu_i2c_bus_rec {
140 /* id used by atom */
142 /* id used by atom */
143 enum amdgpu_hpd_id hpd;
144 /* can be used with hw i2c engine */
146 /* uses multi-media i2c engine */
149 uint32_t mask_clk_reg;
150 uint32_t mask_data_reg;
154 uint32_t en_data_reg;
157 uint32_t mask_clk_mask;
158 uint32_t mask_data_mask;
160 uint32_t a_data_mask;
161 uint32_t en_clk_mask;
162 uint32_t en_data_mask;
164 uint32_t y_data_mask;
167 #define AMDGPU_MAX_BIOS_CONNECTOR 16
170 #define AMDGPU_PLL_USE_BIOS_DIVS (1 << 0)
171 #define AMDGPU_PLL_NO_ODD_POST_DIV (1 << 1)
172 #define AMDGPU_PLL_USE_REF_DIV (1 << 2)
173 #define AMDGPU_PLL_LEGACY (1 << 3)
174 #define AMDGPU_PLL_PREFER_LOW_REF_DIV (1 << 4)
175 #define AMDGPU_PLL_PREFER_HIGH_REF_DIV (1 << 5)
176 #define AMDGPU_PLL_PREFER_LOW_FB_DIV (1 << 6)
177 #define AMDGPU_PLL_PREFER_HIGH_FB_DIV (1 << 7)
178 #define AMDGPU_PLL_PREFER_LOW_POST_DIV (1 << 8)
179 #define AMDGPU_PLL_PREFER_HIGH_POST_DIV (1 << 9)
180 #define AMDGPU_PLL_USE_FRAC_FB_DIV (1 << 10)
181 #define AMDGPU_PLL_PREFER_CLOSEST_LOWER (1 << 11)
182 #define AMDGPU_PLL_USE_POST_DIV (1 << 12)
183 #define AMDGPU_PLL_IS_LCD (1 << 13)
184 #define AMDGPU_PLL_PREFER_MINM_OVER_MAXP (1 << 14)
187 /* reference frequency */
188 uint32_t reference_freq;
191 uint32_t reference_div;
194 /* pll in/out limits */
197 uint32_t pll_out_min;
198 uint32_t pll_out_max;
199 uint32_t lcd_pll_out_min;
200 uint32_t lcd_pll_out_max;
204 uint32_t min_ref_div;
205 uint32_t max_ref_div;
206 uint32_t min_post_div;
207 uint32_t max_post_div;
208 uint32_t min_feedback_div;
209 uint32_t max_feedback_div;
210 uint32_t min_frac_feedback_div;
211 uint32_t max_frac_feedback_div;
213 /* flags for the current clock */
220 struct amdgpu_i2c_chan {
221 struct i2c_adapter adapter;
222 struct drm_device *dev;
223 struct i2c_algo_bit_data bit;
224 struct amdgpu_i2c_bus_rec rec;
225 struct drm_dp_aux aux;
235 bool last_buffer_filled_status;
237 struct amdgpu_audio_pin *pin;
243 struct amdgpu_audio_pin {
254 struct amdgpu_audio {
256 struct amdgpu_audio_pin pin[AMDGPU_MAX_AFMT_BLOCKS];
260 struct amdgpu_display_funcs {
261 /* display watermarks */
262 void (*bandwidth_update)(struct amdgpu_device *adev);
263 /* get frame count */
264 u32 (*vblank_get_counter)(struct amdgpu_device *adev, int crtc);
265 /* wait for vblank */
266 void (*vblank_wait)(struct amdgpu_device *adev, int crtc);
267 /* set backlight level */
268 void (*backlight_set_level)(struct amdgpu_encoder *amdgpu_encoder,
270 /* get backlight level */
271 u8 (*backlight_get_level)(struct amdgpu_encoder *amdgpu_encoder);
273 bool (*hpd_sense)(struct amdgpu_device *adev, enum amdgpu_hpd_id hpd);
274 void (*hpd_set_polarity)(struct amdgpu_device *adev,
275 enum amdgpu_hpd_id hpd);
276 u32 (*hpd_get_gpio_reg)(struct amdgpu_device *adev);
278 void (*page_flip)(struct amdgpu_device *adev,
279 int crtc_id, u64 crtc_base, bool async);
280 int (*page_flip_get_scanoutpos)(struct amdgpu_device *adev, int crtc,
281 u32 *vbl, u32 *position);
282 /* display topology setup */
283 void (*add_encoder)(struct amdgpu_device *adev,
284 uint32_t encoder_enum,
285 uint32_t supported_device,
287 void (*add_connector)(struct amdgpu_device *adev,
288 uint32_t connector_id,
289 uint32_t supported_device,
291 struct amdgpu_i2c_bus_rec *i2c_bus,
292 uint16_t connector_object_id,
293 struct amdgpu_hpd *hpd,
294 struct amdgpu_router *router);
297 struct amdgpu_mode_info {
298 struct atom_context *atom_context;
299 struct card_info *atom_card_info;
300 bool mode_config_initialized;
301 struct amdgpu_crtc *crtcs[AMDGPU_MAX_CRTCS];
302 struct amdgpu_afmt *afmt[AMDGPU_MAX_AFMT_BLOCKS];
303 /* DVI-I properties */
304 struct drm_property *coherent_mode_property;
305 /* DAC enable load detect */
306 struct drm_property *load_detect_property;
308 struct drm_property *underscan_property;
309 struct drm_property *underscan_hborder_property;
310 struct drm_property *underscan_vborder_property;
312 struct drm_property *audio_property;
314 struct drm_property *dither_property;
315 /* hardcoded DFP edid from BIOS */
316 struct edid *bios_hardcoded_edid;
317 int bios_hardcoded_edid_size;
319 /* pointer to fbdev info structure */
320 struct amdgpu_fbdev *rfbdev;
323 /* pointer to backlight encoder */
324 struct amdgpu_encoder *bl_encoder;
325 struct amdgpu_audio audio; /* audio stuff */
326 int num_crtc; /* number of crtcs */
327 int num_hpd; /* number of hpd pins */
328 int num_dig; /* number of dig blocks */
330 const struct amdgpu_display_funcs *funcs;
333 #define AMDGPU_MAX_BL_LEVEL 0xFF
335 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
337 struct amdgpu_backlight_privdata {
338 struct amdgpu_encoder *encoder;
344 struct amdgpu_atom_ss {
346 uint16_t percentage_divider;
358 struct drm_crtc base;
360 u16 lut_r[256], lut_g[256], lut_b[256];
363 uint32_t crtc_offset;
364 struct drm_gem_object *cursor_bo;
365 uint64_t cursor_addr;
372 int max_cursor_width;
373 int max_cursor_height;
374 enum amdgpu_rmx_type rmx_type;
379 struct drm_display_mode native_mode;
382 struct amdgpu_flip_work *pflip_works;
383 enum amdgpu_flip_status pflip_status;
384 int deferred_flip_completion;
386 struct amdgpu_atom_ss ss;
390 u32 pll_reference_div;
393 struct drm_encoder *encoder;
394 struct drm_connector *connector;
399 u32 lb_vblank_lead_lines;
400 struct drm_display_mode hw_mode;
401 /* for virtual dce */
402 struct hrtimer vblank_timer;
403 enum amdgpu_interrupt_state vsync_timer_enabled;
406 struct amdgpu_encoder_atom_dig {
410 int dig_encoder; /* -1 disabled, 0 DIGA, 1 DIGB, etc. */
413 uint16_t panel_pwr_delay;
416 struct drm_display_mode native_mode;
417 struct backlight_device *bl_dev;
419 uint8_t backlight_level;
421 struct amdgpu_afmt *afmt;
424 struct amdgpu_encoder {
425 struct drm_encoder base;
426 uint32_t encoder_enum;
429 uint32_t active_device;
431 uint32_t pixel_clock;
432 enum amdgpu_rmx_type rmx_type;
433 enum amdgpu_underscan_type underscan_type;
434 uint32_t underscan_hborder;
435 uint32_t underscan_vborder;
436 struct drm_display_mode native_mode;
438 int audio_polling_active;
443 struct amdgpu_connector_atom_dig {
445 u8 dpcd[DP_RECEIVER_CAP_SIZE];
452 struct amdgpu_gpio_rec {
461 enum amdgpu_hpd_id hpd;
463 struct amdgpu_gpio_rec gpio;
466 struct amdgpu_router {
468 struct amdgpu_i2c_bus_rec i2c_info;
473 u8 ddc_mux_control_pin;
478 u8 cd_mux_control_pin;
482 enum amdgpu_connector_audio {
483 AMDGPU_AUDIO_DISABLE = 0,
484 AMDGPU_AUDIO_ENABLE = 1,
485 AMDGPU_AUDIO_AUTO = 2
488 enum amdgpu_connector_dither {
489 AMDGPU_FMT_DITHER_DISABLE = 0,
490 AMDGPU_FMT_DITHER_ENABLE = 1,
493 struct amdgpu_connector {
494 struct drm_connector base;
495 uint32_t connector_id;
497 struct amdgpu_i2c_chan *ddc_bus;
498 /* some systems have an hdmi and vga port with a shared ddc line */
501 /* we need to mind the EDID between detect
502 and get modes due to analog/digital/tvencoder */
505 bool dac_load_detect;
506 bool detected_by_load; /* if the connection status was determined by load */
507 uint16_t connector_object_id;
508 struct amdgpu_hpd hpd;
509 struct amdgpu_router router;
510 struct amdgpu_i2c_chan *router_bus;
511 enum amdgpu_connector_audio audio;
512 enum amdgpu_connector_dither dither;
513 unsigned pixelclock_for_modeset;
516 struct amdgpu_framebuffer {
517 struct drm_framebuffer base;
518 struct drm_gem_object *obj;
521 #define ENCODER_MODE_IS_DP(em) (((em) == ATOM_ENCODER_MODE_DP) || \
522 ((em) == ATOM_ENCODER_MODE_DP_MST))
524 /* Driver internal use only flags of amdgpu_get_crtc_scanoutpos() */
525 #define DRM_SCANOUTPOS_VALID (1 << 0)
526 #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1)
527 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
528 #define USE_REAL_VBLANKSTART (1 << 30)
529 #define GET_DISTANCE_TO_VBLANKSTART (1 << 31)
531 void amdgpu_link_encoder_connector(struct drm_device *dev);
533 struct drm_connector *
534 amdgpu_get_connector_for_encoder(struct drm_encoder *encoder);
535 struct drm_connector *
536 amdgpu_get_connector_for_encoder_init(struct drm_encoder *encoder);
537 bool amdgpu_dig_monitor_is_duallink(struct drm_encoder *encoder,
540 u16 amdgpu_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder);
541 struct drm_encoder *amdgpu_get_external_encoder(struct drm_encoder *encoder);
543 bool amdgpu_ddc_probe(struct amdgpu_connector *amdgpu_connector, bool use_aux);
545 void amdgpu_encoder_set_active_device(struct drm_encoder *encoder);
547 int amdgpu_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
548 unsigned int flags, int *vpos, int *hpos,
549 ktime_t *stime, ktime_t *etime,
550 const struct drm_display_mode *mode);
552 int amdgpu_framebuffer_init(struct drm_device *dev,
553 struct amdgpu_framebuffer *rfb,
554 const struct drm_mode_fb_cmd2 *mode_cmd,
555 struct drm_gem_object *obj);
557 int amdgpufb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
559 void amdgpu_enc_destroy(struct drm_encoder *encoder);
560 void amdgpu_copy_fb(struct drm_device *dev, struct drm_gem_object *dst_obj);
561 bool amdgpu_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
562 const struct drm_display_mode *mode,
563 struct drm_display_mode *adjusted_mode);
564 void amdgpu_panel_mode_fixup(struct drm_encoder *encoder,
565 struct drm_display_mode *adjusted_mode);
566 int amdgpu_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc);
569 int amdgpu_fbdev_init(struct amdgpu_device *adev);
570 void amdgpu_fbdev_fini(struct amdgpu_device *adev);
571 void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state);
572 int amdgpu_fbdev_total_size(struct amdgpu_device *adev);
573 bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj);
574 void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev);
576 void amdgpu_fb_output_poll_changed(struct amdgpu_device *adev);
579 int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int bpp, bool tiled);
581 /* amdgpu_display.c */
582 void amdgpu_print_display_setup(struct drm_device *dev);
583 int amdgpu_modeset_create_props(struct amdgpu_device *adev);
584 int amdgpu_crtc_set_config(struct drm_mode_set *set,
585 struct drm_modeset_acquire_ctx *ctx);
586 int amdgpu_crtc_page_flip_target(struct drm_crtc *crtc,
587 struct drm_framebuffer *fb,
588 struct drm_pending_vblank_event *event,
589 uint32_t page_flip_flags, uint32_t target,
590 struct drm_modeset_acquire_ctx *ctx);
591 extern const struct drm_mode_config_funcs amdgpu_mode_funcs;