2 * Copyright 2015 Advanced Micro Devices, Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
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15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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26 #ifndef __AMDGPU_DM_H__
27 #define __AMDGPU_DM_H__
29 #include <drm/drm_atomic.h>
30 #include <drm/drm_connector.h>
31 #include <drm/drm_crtc.h>
32 #include <drm/drm_dp_mst_helper.h>
33 #include <drm/drm_plane.h>
36 * This file contains the definition for amdgpu_display_manager
37 * and its API for amdgpu driver's use.
38 * This component provides all the display related functionality
39 * and this is the only component that calls DAL API.
40 * The API contained here intended for amdgpu driver use.
41 * The API that is called directly from KMS framework is located
42 * in amdgpu_dm_kms.h file
45 #define AMDGPU_DM_MAX_DISPLAY_INDEX 31
47 #define AMDGPU_DM_MAX_CRTC 6
50 #include "include/amdgpu_dal_power_if.h"
51 #include "amdgpu_dm_irq.h"
54 #include "irq_types.h"
55 #include "signal_types.h"
56 #include "amdgpu_dm_crc.h"
58 /* Forward declarations */
64 struct dc_plane_state;
66 struct common_irq_params {
67 struct amdgpu_device *adev;
68 enum dc_irq_source irq_src;
72 * struct irq_list_head - Linked-list for low context IRQ handlers.
74 * @head: The list_head within &struct handler_data
75 * @work: A work_struct containing the deferred handler work
77 struct irq_list_head {
78 struct list_head head;
79 /* In case this interrupt needs post-processing, 'work' will be queued*/
80 struct work_struct work;
84 * struct dm_compressor_info - Buffer info used by frame buffer compression
85 * @cpu_addr: MMIO cpu addr
86 * @bo_ptr: Pointer to the buffer object
87 * @gpu_addr: MMIO gpu addr
89 struct dm_compressor_info {
91 struct amdgpu_bo *bo_ptr;
96 * struct vblank_workqueue - Works to be executed in a separate thread during vblank
97 * @mall_work: work for mall stutter
98 * @dm: amdgpu display manager device
99 * @otg_inst: otg instance of which vblank is being set
100 * @enable: true if enable vblank
102 struct vblank_workqueue {
103 struct work_struct mall_work;
104 struct amdgpu_display_manager *dm;
110 * struct amdgpu_dm_backlight_caps - Information about backlight
112 * Describe the backlight support for ACPI or eDP AUX.
114 struct amdgpu_dm_backlight_caps {
116 * @ext_caps: Keep the data struct with all the information about the
117 * display support for HDR.
119 union dpcd_sink_ext_caps *ext_caps;
121 * @aux_min_input_signal: Min brightness value supported by the display
123 u32 aux_min_input_signal;
125 * @aux_max_input_signal: Max brightness value supported by the display
128 u32 aux_max_input_signal;
130 * @min_input_signal: minimum possible input in range 0-255.
132 int min_input_signal;
134 * @max_input_signal: maximum possible input in range 0-255.
136 int max_input_signal;
138 * @caps_valid: true if these values are from the ACPI interface.
142 * @aux_support: Describes if the display supports AUX backlight.
148 * struct amdgpu_display_manager - Central amdgpu display manager device
150 * @dc: Display Core control structure
151 * @adev: AMDGPU base driver structure
152 * @ddev: DRM base driver structure
153 * @display_indexes_num: Max number of display streams supported
154 * @irq_handler_list_table_lock: Synchronizes access to IRQ tables
155 * @backlight_dev: Backlight control device
156 * @backlight_link: Link on which to control backlight
157 * @backlight_caps: Capabilities of the backlight device
158 * @freesync_module: Module handling freesync calculations
159 * @hdcp_workqueue: AMDGPU content protection queue
160 * @fw_dmcu: Reference to DMCU firmware
161 * @dmcu_fw_version: Version of the DMCU firmware
162 * @soc_bounding_box: SOC bounding box values provided by gpu_info FW
163 * @cached_state: Caches device atomic state for suspend/resume
164 * @cached_dc_state: Cached state of content streams
165 * @compressor: Frame buffer compression buffer. See &struct dm_compressor_info
166 * @force_timing_sync: set via debugfs. When set, indicates that all connected
167 * displays will be forced to synchronize.
169 struct amdgpu_display_manager {
176 * DMUB service, used for controlling the DMUB on hardware
177 * that supports it. The pointer to the dmub_srv will be
178 * NULL on hardware that does not support it.
180 struct dmub_srv *dmub_srv;
185 * Framebuffer regions for the DMUB.
187 struct dmub_srv_fb_info *dmub_fb_info;
192 * DMUB firmware, required on hardware that has DMUB support.
194 const struct firmware *dmub_fw;
199 * Buffer object for the DMUB.
201 struct amdgpu_bo *dmub_bo;
206 * GPU virtual address for the DMUB buffer object.
208 u64 dmub_bo_gpu_addr;
213 * CPU address for the DMUB buffer object.
215 void *dmub_bo_cpu_addr;
220 * DMCUB firmware version.
222 uint32_t dmcub_fw_version;
227 * The Common Graphics Services device. It provides an interface for
228 * accessing registers.
230 struct cgs_device *cgs_device;
232 struct amdgpu_device *adev;
233 struct drm_device *ddev;
234 u16 display_indexes_num;
239 * In combination with &dm_atomic_state it helps manage
240 * global atomic state that doesn't map cleanly into existing
241 * drm resources, like &dc_context.
243 struct drm_private_obj atomic_obj;
248 * Guards access to DC functions that can issue register write
251 struct mutex dc_lock;
256 * Guards access to audio instance changes.
258 struct mutex audio_lock;
263 * Guards access to deferred vblank work state.
265 #if defined(CONFIG_DRM_AMD_DC_DCN)
266 spinlock_t vblank_lock;
272 * Used to notify ELD changes to sound driver.
274 struct drm_audio_component *audio_component;
279 * True if the audio component has been registered
280 * successfully, false otherwise.
282 bool audio_registered;
285 * @irq_handler_list_low_tab:
287 * Low priority IRQ handler table.
289 * It is a n*m table consisting of n IRQ sources, and m handlers per IRQ
290 * source. Low priority IRQ handlers are deferred to a workqueue to be
291 * processed. Hence, they can sleep.
293 * Note that handlers are called in the same order as they were
296 struct irq_list_head irq_handler_list_low_tab[DAL_IRQ_SOURCES_NUMBER];
299 * @irq_handler_list_high_tab:
301 * High priority IRQ handler table.
303 * It is a n*m table, same as &irq_handler_list_low_tab. However,
304 * handlers in this table are not deferred and are called immediately.
306 struct list_head irq_handler_list_high_tab[DAL_IRQ_SOURCES_NUMBER];
311 * Page flip IRQ parameters, passed to registered handlers when
314 struct common_irq_params
315 pflip_params[DC_IRQ_SOURCE_PFLIP_LAST - DC_IRQ_SOURCE_PFLIP_FIRST + 1];
320 * Vertical blanking IRQ parameters, passed to registered handlers when
323 struct common_irq_params
324 vblank_params[DC_IRQ_SOURCE_VBLANK6 - DC_IRQ_SOURCE_VBLANK1 + 1];
329 * Vertical update IRQ parameters, passed to registered handlers when
332 struct common_irq_params
333 vupdate_params[DC_IRQ_SOURCE_VUPDATE6 - DC_IRQ_SOURCE_VUPDATE1 + 1];
335 spinlock_t irq_handler_list_table_lock;
337 struct backlight_device *backlight_dev;
339 const struct dc_link *backlight_link;
340 struct amdgpu_dm_backlight_caps backlight_caps;
342 struct mod_freesync *freesync_module;
343 #ifdef CONFIG_DRM_AMD_DC_HDCP
344 struct hdcp_workqueue *hdcp_workqueue;
347 #if defined(CONFIG_DRM_AMD_DC_DCN)
348 struct vblank_workqueue *vblank_workqueue;
351 struct drm_atomic_state *cached_state;
352 struct dc_state *cached_dc_state;
354 struct dm_compressor_info compressor;
356 const struct firmware *fw_dmcu;
357 uint32_t dmcu_fw_version;
361 * gpu_info FW provided soc bounding box struct or 0 if not
364 const struct gpu_info_soc_bounding_box_v1_0 *soc_bounding_box;
367 * @active_vblank_irq_count:
369 * number of currently active vblank irqs
371 uint32_t active_vblank_irq_count;
376 * fake encoders used for DP MST.
378 struct amdgpu_encoder mst_encoders[AMDGPU_DM_MAX_CRTC];
379 bool force_timing_sync;
382 enum dsc_clock_force_state {
383 DSC_CLK_FORCE_DEFAULT = 0,
384 DSC_CLK_FORCE_ENABLE,
385 DSC_CLK_FORCE_DISABLE,
388 struct dsc_preferred_settings {
389 enum dsc_clock_force_state dsc_force_enable;
390 uint32_t dsc_num_slices_v;
391 uint32_t dsc_num_slices_h;
392 uint32_t dsc_bits_per_pixel;
395 struct amdgpu_dm_connector {
397 struct drm_connector base;
398 uint32_t connector_id;
400 /* we need to mind the EDID between detect
401 and get modes due to analog/digital/tvencoder */
404 /* shared with amdgpu */
405 struct amdgpu_hpd hpd;
407 /* number of modes generated from EDID at 'dc_sink' */
410 /* The 'old' sink - before an HPD.
411 * The 'current' sink is in dc_link->sink. */
412 struct dc_sink *dc_sink;
413 struct dc_link *dc_link;
414 struct dc_sink *dc_em_sink;
417 struct drm_dp_mst_topology_mgr mst_mgr;
418 struct amdgpu_dm_dp_aux dm_dp_aux;
419 struct drm_dp_mst_port *port;
420 struct amdgpu_dm_connector *mst_port;
421 struct drm_dp_aux *dsc_aux;
423 /* TODO see if we can merge with ddc_bus or make a dm_connector */
424 struct amdgpu_i2c_adapter *i2c;
426 /* Monitor range limits */
431 /* Audio instance - protected by audio_lock. */
434 struct mutex hpd_lock;
437 #ifdef CONFIG_DEBUG_FS
438 uint32_t debugfs_dpcd_address;
439 uint32_t debugfs_dpcd_size;
441 bool force_yuv420_output;
442 struct dsc_preferred_settings dsc_settings;
445 #define to_amdgpu_dm_connector(x) container_of(x, struct amdgpu_dm_connector, base)
447 extern const struct amdgpu_ip_block_version dm_ip_block;
449 struct dm_plane_state {
450 struct drm_plane_state base;
451 struct dc_plane_state *dc_state;
454 struct dm_crtc_state {
455 struct drm_crtc_state base;
456 struct dc_stream_state *stream;
459 bool cm_is_degamma_srgb;
465 enum amdgpu_dm_pipe_crc_source crc_src;
467 bool freesync_timing_changed;
468 bool freesync_vrr_info_changed;
470 bool dsc_force_changed;
472 struct mod_freesync_config freesync_config;
473 struct dc_info_packet vrr_infopacket;
478 #define to_dm_crtc_state(x) container_of(x, struct dm_crtc_state, base)
480 struct dm_atomic_state {
481 struct drm_private_state base;
483 struct dc_state *context;
486 #define to_dm_atomic_state(x) container_of(x, struct dm_atomic_state, base)
488 struct dm_connector_state {
489 struct drm_connector_state base;
491 enum amdgpu_rmx_type scaling;
492 uint8_t underscan_vborder;
493 uint8_t underscan_hborder;
494 bool underscan_enable;
495 bool freesync_capable;
496 #ifdef CONFIG_DRM_AMD_DC_HDCP
504 #define to_dm_connector_state(x)\
505 container_of((x), struct dm_connector_state, base)
507 void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector);
508 struct drm_connector_state *
509 amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector);
510 int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector,
511 struct drm_connector_state *state,
512 struct drm_property *property,
515 int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector,
516 const struct drm_connector_state *state,
517 struct drm_property *property,
520 int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev);
522 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
523 struct amdgpu_dm_connector *aconnector,
525 struct dc_link *link,
528 enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connector,
529 struct drm_display_mode *mode);
531 void dm_restore_drm_connector_state(struct drm_device *dev,
532 struct drm_connector *connector);
534 void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
537 void amdgpu_dm_trigger_timing_sync(struct drm_device *dev);
539 #define MAX_COLOR_LUT_ENTRIES 4096
540 /* Legacy gamm LUT users such as X doesn't like large LUT sizes */
541 #define MAX_COLOR_LEGACY_LUT_ENTRIES 256
543 void amdgpu_dm_init_color_mod(void);
544 int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc);
545 int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
546 struct dc_plane_state *dc_plane_state);
548 void amdgpu_dm_update_connector_after_detect(
549 struct amdgpu_dm_connector *aconnector);
551 extern const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs;
553 #endif /* __AMDGPU_DM_H__ */