2 * Copyright 2019 Advanced Micro Devices, Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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20 * OTHER DEALINGS IN THE SOFTWARE.
30 * DOC: DMUB interface and operation
32 * DMUB is the interface to the display DMCUB microcontroller on DCN hardware.
33 * It delegates hardware initialization and command submission to the
34 * microcontroller. DMUB is the shortname for DMCUB.
36 * This interface is not thread-safe. Ensure that all access to the interface
37 * is properly synchronized by the caller.
39 * Initialization and usage of the DMUB service should be done in the
42 * 1. dmub_srv_create()
43 * 2. dmub_srv_has_hw_support()
44 * 3. dmub_srv_calc_region_info()
45 * 4. dmub_srv_hw_init()
47 * The call to dmub_srv_create() is required to use the server.
49 * The calls to dmub_srv_has_hw_support() and dmub_srv_calc_region_info()
50 * are helpers to query cache window size and allocate framebuffer(s)
51 * for the cache windows.
53 * The call to dmub_srv_hw_init() programs the DMCUB registers to prepare
54 * for command submission. Commands can be queued via dmub_srv_cmd_queue()
55 * and executed via dmub_srv_cmd_execute().
57 * If the queue is full the dmub_srv_wait_for_idle() call can be used to
58 * wait until the queue has been cleared.
60 * Destroying the DMUB service can be done by calling dmub_srv_destroy().
61 * This does not clear DMUB hardware state, only software state.
63 * The interface is intended to be standalone and should not depend on any
64 * other component within DAL.
67 #include "inc/dmub_cmd.h"
68 #include "dc/dc_types.h"
70 #if defined(__cplusplus)
74 /* Forward declarations */
76 struct dmub_srv_common_regs;
77 struct dmub_srv_dcn31_regs;
79 struct dmcub_trace_buf_entry;
81 /* enum dmub_window_memory_type - memory location type specification for windows */
82 enum dmub_window_memory_type {
83 DMUB_WINDOW_MEMORY_TYPE_FB = 0,
84 DMUB_WINDOW_MEMORY_TYPE_GART
87 /* enum dmub_status - return code for dmcub functions */
91 DMUB_STATUS_QUEUE_FULL,
94 DMUB_STATUS_HW_FAILURE,
95 DMUB_STATUS_POWER_STATE_D3
98 /* enum dmub_asic - dmub asic identifier */
119 /* enum dmub_window_id - dmub window identifier */
120 enum dmub_window_id {
121 DMUB_WINDOW_0_INST_CONST = 0,
123 DMUB_WINDOW_2_BSS_DATA,
125 DMUB_WINDOW_4_MAILBOX,
126 DMUB_WINDOW_5_TRACEBUFF,
127 DMUB_WINDOW_6_FW_STATE,
128 DMUB_WINDOW_7_SCRATCH_MEM,
129 DMUB_WINDOW_SHARED_STATE,
133 /* enum dmub_notification_type - dmub outbox notification identifier */
134 enum dmub_notification_type {
135 DMUB_NOTIFICATION_NO_DATA = 0,
136 DMUB_NOTIFICATION_AUX_REPLY,
137 DMUB_NOTIFICATION_HPD,
138 DMUB_NOTIFICATION_HPD_IRQ,
139 DMUB_NOTIFICATION_SET_CONFIG_REPLY,
140 DMUB_NOTIFICATION_DPIA_NOTIFICATION,
141 DMUB_NOTIFICATION_MAX
145 * DPIA NOTIFICATION Response Type
147 enum dpia_notify_bw_alloc_status {
149 DPIA_BW_REQ_FAILED = 0,
152 DPIA_BW_ALLOC_CAPS_CHANGED
155 /* enum dmub_memory_access_type - memory access method */
156 enum dmub_memory_access_type {
157 DMUB_MEMORY_ACCESS_DEFAULT,
158 DMUB_MEMORY_ACCESS_CPU = DMUB_MEMORY_ACCESS_DEFAULT,
159 DMUB_MEMORY_ACCESS_DMA
162 /* enum dmub_power_state type - to track DC power state in dmub_srv */
163 enum dmub_srv_power_state_type {
164 DMUB_POWER_STATE_UNDEFINED = 0,
165 DMUB_POWER_STATE_D0 = 1,
166 DMUB_POWER_STATE_D3 = 8
170 * struct dmub_region - dmub hw memory region
171 * @base: base address for region, must be 256 byte aligned
172 * @top: top address for region
180 * struct dmub_window - dmub hw cache window
181 * @off: offset to the fb memory in gpu address space
182 * @r: region in uc address space for cache window
185 union dmub_addr offset;
186 struct dmub_region region;
190 * struct dmub_fb - defines a dmub framebuffer memory region
191 * @cpu_addr: cpu virtual address for the region, NULL if invalid
192 * @gpu_addr: gpu virtual address for the region, NULL if invalid
193 * @size: size of the region in bytes, zero if invalid
202 * struct dmub_srv_region_params - params used for calculating dmub regions
203 * @inst_const_size: size of the fw inst const section
204 * @bss_data_size: size of the fw bss data section
205 * @vbios_size: size of the vbios data
206 * @fw_bss_data: raw firmware bss data section
208 struct dmub_srv_region_params {
209 uint32_t inst_const_size;
210 uint32_t bss_data_size;
212 const uint8_t *fw_inst_const;
213 const uint8_t *fw_bss_data;
214 const enum dmub_window_memory_type *window_memory_type;
218 * struct dmub_srv_region_info - output region info from the dmub service
219 * @fb_size: required minimum fb size for all regions, aligned to 4096 bytes
220 * @num_regions: number of regions used by the dmub service
221 * @regions: region info
223 * The regions are aligned such that they can be all placed within the
224 * same framebuffer but they can also be placed into different framebuffers.
226 * The size of each region can be calculated by the caller:
227 * size = reg.top - reg.base
229 * Care must be taken when performing custom allocations to ensure that each
230 * region base address is 256 byte aligned.
232 struct dmub_srv_region_info {
236 struct dmub_region regions[DMUB_WINDOW_TOTAL];
240 * struct dmub_srv_memory_params - parameters used for driver fb setup
241 * @region_info: region info calculated by dmub service
242 * @cpu_fb_addr: base cpu address for the framebuffer
243 * @cpu_inbox_addr: base cpu address for the gart
244 * @gpu_fb_addr: base gpu virtual address for the framebuffer
245 * @gpu_inbox_addr: base gpu virtual address for the gart
247 struct dmub_srv_memory_params {
248 const struct dmub_srv_region_info *region_info;
251 uint64_t gpu_fb_addr;
252 uint64_t gpu_gart_addr;
253 const enum dmub_window_memory_type *window_memory_type;
257 * struct dmub_srv_fb_info - output fb info from the dmub service
258 * @num_fbs: number of required dmub framebuffers
259 * @fbs: fb data for each region
261 * Output from the dmub service helper that can be used by the
262 * driver to prepare dmub_fb that can be passed into the dmub
265 * Assumes that all regions are within the same framebuffer
266 * and have been setup according to the region_info generated
267 * by the dmub service.
269 struct dmub_srv_fb_info {
271 struct dmub_fb fb[DMUB_WINDOW_TOTAL];
275 * struct dmub_srv_hw_params - params for dmub hardware initialization
276 * @fb: framebuffer info for each region
277 * @fb_base: base of the framebuffer aperture
278 * @fb_offset: offset of the framebuffer aperture
279 * @psp_version: psp version to pass for DMCU init
280 * @load_inst_const: true if DMUB should load inst const fw
282 struct dmub_srv_hw_params {
283 struct dmub_fb *fb[DMUB_WINDOW_TOTAL];
286 uint32_t psp_version;
287 bool load_inst_const;
288 bool skip_panel_power_sequence;
290 bool power_optimization;
293 bool usb4_cm_version;
294 bool fw_in_system_memory;
295 bool dpia_hpd_int_enable_supported;
296 bool disable_clock_gate;
297 bool disallow_dispclk_dppclk_ds;
298 enum dmub_memory_access_type mem_access_type;
299 enum dmub_ips_disable_type disable_ips;
303 * struct dmub_diagnostic_data - Diagnostic data retrieved from DMCUB for
304 * debugging purposes, including logging, crash analysis, etc.
306 struct dmub_diagnostic_data {
307 uint32_t dmcub_version;
308 uint32_t scratch[17];
310 uint32_t undefined_address_fault_addr;
311 uint32_t inst_fetch_fault_addr;
312 uint32_t data_write_fault_addr;
313 uint32_t inbox1_rptr;
314 uint32_t inbox1_wptr;
315 uint32_t inbox1_size;
316 uint32_t inbox0_rptr;
317 uint32_t inbox0_wptr;
318 uint32_t inbox0_size;
319 uint32_t gpint_datain0;
320 uint8_t is_dmcub_enabled : 1;
321 uint8_t is_dmcub_soft_reset : 1;
322 uint8_t is_dmcub_secure_reset : 1;
323 uint8_t is_traceport_en : 1;
324 uint8_t is_cw0_enabled : 1;
325 uint8_t is_cw6_enabled : 1;
329 * struct dmub_srv_base_funcs - Driver specific base callbacks
331 struct dmub_srv_base_funcs {
335 * Hook for reading a register.
337 * Return: The 32-bit register value from the given address.
339 uint32_t (*reg_read)(void *ctx, uint32_t address);
344 * Hook for writing a value to the register specified by address.
346 void (*reg_write)(void *ctx, uint32_t address, uint32_t value);
350 * struct dmub_srv_hw_funcs - hardware sequencer funcs for dmub
352 struct dmub_srv_hw_funcs {
353 /* private: internal use only */
355 void (*init)(struct dmub_srv *dmub);
357 void (*reset)(struct dmub_srv *dmub);
359 void (*reset_release)(struct dmub_srv *dmub);
361 void (*backdoor_load)(struct dmub_srv *dmub,
362 const struct dmub_window *cw0,
363 const struct dmub_window *cw1);
365 void (*backdoor_load_zfb_mode)(struct dmub_srv *dmub,
366 const struct dmub_window *cw0,
367 const struct dmub_window *cw1);
368 void (*setup_windows)(struct dmub_srv *dmub,
369 const struct dmub_window *cw2,
370 const struct dmub_window *cw3,
371 const struct dmub_window *cw4,
372 const struct dmub_window *cw5,
373 const struct dmub_window *cw6,
374 const struct dmub_window *region6);
376 void (*setup_mailbox)(struct dmub_srv *dmub,
377 const struct dmub_region *inbox1);
379 uint32_t (*get_inbox1_wptr)(struct dmub_srv *dmub);
381 uint32_t (*get_inbox1_rptr)(struct dmub_srv *dmub);
383 void (*set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset);
385 void (*setup_out_mailbox)(struct dmub_srv *dmub,
386 const struct dmub_region *outbox1);
388 uint32_t (*get_outbox1_wptr)(struct dmub_srv *dmub);
390 void (*set_outbox1_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset);
392 void (*setup_outbox0)(struct dmub_srv *dmub,
393 const struct dmub_region *outbox0);
395 uint32_t (*get_outbox0_wptr)(struct dmub_srv *dmub);
397 void (*set_outbox0_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset);
399 uint32_t (*emul_get_inbox1_rptr)(struct dmub_srv *dmub);
401 void (*emul_set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset);
403 bool (*is_supported)(struct dmub_srv *dmub);
405 bool (*is_psrsu_supported)(struct dmub_srv *dmub);
407 bool (*is_hw_init)(struct dmub_srv *dmub);
408 bool (*is_hw_powered_up)(struct dmub_srv *dmub);
410 void (*enable_dmub_boot_options)(struct dmub_srv *dmub,
411 const struct dmub_srv_hw_params *params);
413 void (*skip_dmub_panel_power_sequence)(struct dmub_srv *dmub, bool skip);
415 union dmub_fw_boot_status (*get_fw_status)(struct dmub_srv *dmub);
417 union dmub_fw_boot_options (*get_fw_boot_option)(struct dmub_srv *dmub);
419 void (*set_gpint)(struct dmub_srv *dmub,
420 union dmub_gpint_data_register reg);
422 bool (*is_gpint_acked)(struct dmub_srv *dmub,
423 union dmub_gpint_data_register reg);
425 uint32_t (*get_gpint_response)(struct dmub_srv *dmub);
427 uint32_t (*get_gpint_dataout)(struct dmub_srv *dmub);
429 void (*configure_dmub_in_system_memory)(struct dmub_srv *dmub);
430 void (*clear_inbox0_ack_register)(struct dmub_srv *dmub);
431 uint32_t (*read_inbox0_ack_register)(struct dmub_srv *dmub);
432 void (*send_inbox0_cmd)(struct dmub_srv *dmub, union dmub_inbox0_data_register data);
433 uint32_t (*get_current_time)(struct dmub_srv *dmub);
435 void (*get_diagnostic_data)(struct dmub_srv *dmub, struct dmub_diagnostic_data *dmub_oca);
437 bool (*should_detect)(struct dmub_srv *dmub);
438 void (*init_reg_offsets)(struct dmub_srv *dmub, struct dc_context *ctx);
440 void (*subvp_save_surf_addr)(struct dmub_srv *dmub, const struct dc_plane_address *addr, uint8_t subvp_index);
444 * struct dmub_srv_create_params - params for dmub service creation
445 * @base_funcs: driver supplied base routines
446 * @hw_funcs: optional overrides for hw funcs
447 * @user_ctx: context data for callback funcs
448 * @asic: driver supplied asic
449 * @fw_version: the current firmware version, if any
450 * @is_virtual: false for hw support only
452 struct dmub_srv_create_params {
453 struct dmub_srv_base_funcs funcs;
454 struct dmub_srv_hw_funcs *hw_funcs;
462 * struct dmub_srv - software state for dmcub
463 * @asic: dmub asic identifier
464 * @user_ctx: user provided context for the dmub_srv
465 * @fw_version: the current firmware version, if any
466 * @is_virtual: false if hardware support only
467 * @shared_state: dmub shared state between firmware and driver
468 * @fw_state: dmub firmware state pointer
475 struct dmub_fb scratch_mem_fb;
476 volatile struct dmub_shared_state_feature_block *shared_state;
477 volatile const struct dmub_fw_state *fw_state;
479 /* private: internal use only */
480 const struct dmub_srv_common_regs *regs;
481 const struct dmub_srv_dcn31_regs *regs_dcn31;
482 struct dmub_srv_dcn32_regs *regs_dcn32;
483 struct dmub_srv_dcn35_regs *regs_dcn35;
485 struct dmub_srv_base_funcs funcs;
486 struct dmub_srv_hw_funcs hw_funcs;
487 struct dmub_rb inbox1_rb;
488 uint32_t inbox1_last_wptr;
490 * outbox1_rb is accessed without locks (dal & dc)
491 * and to be used only in dmub_srv_stat_get_notification()
493 struct dmub_rb outbox1_rb;
495 struct dmub_rb outbox0_rb;
502 uint32_t psp_version;
504 /* Feature capabilities reported by fw */
505 struct dmub_feature_caps feature_caps;
506 struct dmub_visual_confirm_color visual_confirm_color;
508 enum dmub_srv_power_state_type power_state;
512 * struct dmub_notification - dmub notification data
513 * @type: dmub notification type
514 * @link_index: link index to identify aux connection
515 * @result: USB4 status returned from dmub
516 * @pending_notification: Indicates there are other pending notifications
517 * @aux_reply: aux reply
518 * @hpd_status: hpd status
519 * @bw_alloc_reply: BW Allocation reply from CM/DPIA
521 struct dmub_notification {
522 enum dmub_notification_type type;
525 bool pending_notification;
527 struct aux_reply_data aux_reply;
528 enum dp_hpd_status hpd_status;
529 enum set_config_status sc_status;
531 * DPIA notification command.
533 struct dmub_rb_cmd_dpia_notification dpia_notification;
538 * DMUB firmware version helper macro - useful for checking if the version
539 * of a firmware to know if feature or functionality is supported or present.
541 #define DMUB_FW_VERSION(major, minor, revision) \
542 ((((major) & 0xFF) << 24) | (((minor) & 0xFF) << 16) | (((revision) & 0xFF) << 8))
545 * dmub_srv_create() - creates the DMUB service.
546 * @dmub: the dmub service
547 * @params: creation parameters for the service
550 * DMUB_STATUS_OK - success
551 * DMUB_STATUS_INVALID - unspecified error
553 enum dmub_status dmub_srv_create(struct dmub_srv *dmub,
554 const struct dmub_srv_create_params *params);
557 * dmub_srv_destroy() - destroys the DMUB service.
558 * @dmub: the dmub service
560 void dmub_srv_destroy(struct dmub_srv *dmub);
563 * dmub_srv_calc_region_info() - retreives region info from the dmub service
564 * @dmub: the dmub service
565 * @params: parameters used to calculate region locations
566 * @info_out: the output region info from dmub
568 * Calculates the base and top address for all relevant dmub regions
569 * using the parameters given (if any).
572 * DMUB_STATUS_OK - success
573 * DMUB_STATUS_INVALID - unspecified error
576 dmub_srv_calc_region_info(struct dmub_srv *dmub,
577 const struct dmub_srv_region_params *params,
578 struct dmub_srv_region_info *out);
581 * dmub_srv_calc_region_info() - retreives fb info from the dmub service
582 * @dmub: the dmub service
583 * @params: parameters used to calculate fb locations
584 * @info_out: the output fb info from dmub
586 * Calculates the base and top address for all relevant dmub regions
587 * using the parameters given (if any).
590 * DMUB_STATUS_OK - success
591 * DMUB_STATUS_INVALID - unspecified error
593 enum dmub_status dmub_srv_calc_mem_info(struct dmub_srv *dmub,
594 const struct dmub_srv_memory_params *params,
595 struct dmub_srv_fb_info *out);
598 * dmub_srv_has_hw_support() - returns hw support state for dmcub
599 * @dmub: the dmub service
600 * @is_supported: hw support state
602 * Queries the hardware for DMCUB support and returns the result.
604 * Can be called before dmub_srv_hw_init().
607 * DMUB_STATUS_OK - success
608 * DMUB_STATUS_INVALID - unspecified error
610 enum dmub_status dmub_srv_has_hw_support(struct dmub_srv *dmub,
614 * dmub_srv_is_hw_init() - returns hardware init state
617 * DMUB_STATUS_OK - success
618 * DMUB_STATUS_INVALID - unspecified error
620 enum dmub_status dmub_srv_is_hw_init(struct dmub_srv *dmub, bool *is_hw_init);
623 * dmub_srv_hw_init() - initializes the underlying DMUB hardware
624 * @dmub: the dmub service
625 * @params: params for hardware initialization
627 * Resets the DMUB hardware and performs backdoor loading of the
628 * required cache regions based on the input framebuffer regions.
631 * DMUB_STATUS_OK - success
632 * DMUB_STATUS_NO_CTX - dmcub context not initialized
633 * DMUB_STATUS_INVALID - unspecified error
635 enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub,
636 const struct dmub_srv_hw_params *params);
639 * dmub_srv_hw_reset() - puts the DMUB hardware in reset state if initialized
640 * @dmub: the dmub service
642 * Before destroying the DMUB service or releasing the backing framebuffer
643 * memory we'll need to put the DMCUB into reset first.
645 * A subsequent call to dmub_srv_hw_init() will re-enable the DMCUB.
648 * DMUB_STATUS_OK - success
649 * DMUB_STATUS_INVALID - unspecified error
651 enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub);
654 * dmub_srv_sync_inbox1() - sync sw state with hw state
655 * @dmub: the dmub service
657 * Sync sw state with hw state when resume from S0i3
660 * DMUB_STATUS_OK - success
661 * DMUB_STATUS_INVALID - unspecified error
663 enum dmub_status dmub_srv_sync_inbox1(struct dmub_srv *dmub);
666 * dmub_srv_cmd_queue() - queues a command to the DMUB
667 * @dmub: the dmub service
668 * @cmd: the command to queue
670 * Queues a command to the DMUB service but does not begin execution
674 * DMUB_STATUS_OK - success
675 * DMUB_STATUS_QUEUE_FULL - no remaining room in queue
676 * DMUB_STATUS_INVALID - unspecified error
678 enum dmub_status dmub_srv_cmd_queue(struct dmub_srv *dmub,
679 const union dmub_rb_cmd *cmd);
682 * dmub_srv_cmd_execute() - Executes a queued sequence to the dmub
683 * @dmub: the dmub service
685 * Begins execution of queued commands on the dmub.
688 * DMUB_STATUS_OK - success
689 * DMUB_STATUS_INVALID - unspecified error
691 enum dmub_status dmub_srv_cmd_execute(struct dmub_srv *dmub);
694 * dmub_srv_wait_for_hw_pwr_up() - Waits for firmware hardware power up is completed
695 * @dmub: the dmub service
696 * @timeout_us: the maximum number of microseconds to wait
698 * Waits until firmware hardware is powered up. The maximum
699 * wait time is given in microseconds to prevent spinning forever.
702 * DMUB_STATUS_OK - success
703 * DMUB_STATUS_TIMEOUT - timed out
704 * DMUB_STATUS_INVALID - unspecified error
706 enum dmub_status dmub_srv_wait_for_hw_pwr_up(struct dmub_srv *dmub,
707 uint32_t timeout_us);
709 bool dmub_srv_is_hw_pwr_up(struct dmub_srv *dmub);
712 * dmub_srv_wait_for_auto_load() - Waits for firmware auto load to complete
713 * @dmub: the dmub service
714 * @timeout_us: the maximum number of microseconds to wait
716 * Waits until firmware has been autoloaded by the DMCUB. The maximum
717 * wait time is given in microseconds to prevent spinning forever.
719 * On ASICs without firmware autoload support this function will return
723 * DMUB_STATUS_OK - success
724 * DMUB_STATUS_TIMEOUT - wait for phy init timed out
725 * DMUB_STATUS_INVALID - unspecified error
727 enum dmub_status dmub_srv_wait_for_auto_load(struct dmub_srv *dmub,
728 uint32_t timeout_us);
731 * dmub_srv_wait_for_phy_init() - Waits for DMUB PHY init to complete
732 * @dmub: the dmub service
733 * @timeout_us: the maximum number of microseconds to wait
735 * Waits until the PHY has been initialized by the DMUB. The maximum
736 * wait time is given in microseconds to prevent spinning forever.
738 * On ASICs without PHY init support this function will return
742 * DMUB_STATUS_OK - success
743 * DMUB_STATUS_TIMEOUT - wait for phy init timed out
744 * DMUB_STATUS_INVALID - unspecified error
746 enum dmub_status dmub_srv_wait_for_phy_init(struct dmub_srv *dmub,
747 uint32_t timeout_us);
750 * dmub_srv_wait_for_idle() - Waits for the DMUB to be idle
751 * @dmub: the dmub service
752 * @timeout_us: the maximum number of microseconds to wait
754 * Waits until the DMUB buffer is empty and all commands have
755 * finished processing. The maximum wait time is given in
756 * microseconds to prevent spinning forever.
759 * DMUB_STATUS_OK - success
760 * DMUB_STATUS_TIMEOUT - wait for buffer to flush timed out
761 * DMUB_STATUS_INVALID - unspecified error
763 enum dmub_status dmub_srv_wait_for_idle(struct dmub_srv *dmub,
764 uint32_t timeout_us);
767 * dmub_srv_send_gpint_command() - Sends a GPINT based command.
768 * @dmub: the dmub service
769 * @command_code: the command code to send
770 * @param: the command parameter to send
771 * @timeout_us: the maximum number of microseconds to wait
773 * Sends a command via the general purpose interrupt (GPINT).
774 * Waits for the number of microseconds specified by timeout_us
775 * for the command ACK before returning.
777 * Can be called after software initialization.
780 * DMUB_STATUS_OK - success
781 * DMUB_STATUS_TIMEOUT - wait for ACK timed out
782 * DMUB_STATUS_INVALID - unspecified error
785 dmub_srv_send_gpint_command(struct dmub_srv *dmub,
786 enum dmub_gpint_command command_code,
787 uint16_t param, uint32_t timeout_us);
790 * dmub_srv_get_gpint_response() - Queries the GPINT response.
791 * @dmub: the dmub service
792 * @response: the response for the last GPINT
794 * Returns the response code for the last GPINT interrupt.
796 * Can be called after software initialization.
799 * DMUB_STATUS_OK - success
800 * DMUB_STATUS_INVALID - unspecified error
802 enum dmub_status dmub_srv_get_gpint_response(struct dmub_srv *dmub,
806 * dmub_srv_get_gpint_dataout() - Queries the GPINT DATAOUT.
807 * @dmub: the dmub service
808 * @dataout: the data for the GPINT DATAOUT
810 * Returns the response code for the last GPINT DATAOUT interrupt.
812 * Can be called after software initialization.
815 * DMUB_STATUS_OK - success
816 * DMUB_STATUS_INVALID - unspecified error
818 enum dmub_status dmub_srv_get_gpint_dataout(struct dmub_srv *dmub,
822 * dmub_flush_buffer_mem() - Read back entire frame buffer region.
823 * This ensures that the write from x86 has been flushed and will not
825 * @fb: frame buffer to flush
827 * Can be called after software initialization.
829 void dmub_flush_buffer_mem(const struct dmub_fb *fb);
832 * dmub_srv_get_fw_boot_status() - Returns the DMUB boot status bits.
834 * @dmub: the dmub service
835 * @status: out pointer for firmware status
838 * DMUB_STATUS_OK - success
839 * DMUB_STATUS_INVALID - unspecified error, unsupported
841 enum dmub_status dmub_srv_get_fw_boot_status(struct dmub_srv *dmub,
842 union dmub_fw_boot_status *status);
844 enum dmub_status dmub_srv_get_fw_boot_option(struct dmub_srv *dmub,
845 union dmub_fw_boot_options *option);
847 enum dmub_status dmub_srv_cmd_with_reply_data(struct dmub_srv *dmub,
848 union dmub_rb_cmd *cmd);
850 enum dmub_status dmub_srv_set_skip_panel_power_sequence(struct dmub_srv *dmub,
853 bool dmub_srv_get_outbox0_msg(struct dmub_srv *dmub, struct dmcub_trace_buf_entry *entry);
855 bool dmub_srv_get_diagnostic_data(struct dmub_srv *dmub, struct dmub_diagnostic_data *diag_data);
857 bool dmub_srv_should_detect(struct dmub_srv *dmub);
860 * dmub_srv_send_inbox0_cmd() - Send command to DMUB using INBOX0
861 * @dmub: the dmub service
862 * @data: the data to be sent in the INBOX0 command
864 * Send command by writing directly to INBOX0 WPTR
867 * DMUB_STATUS_OK - success
868 * DMUB_STATUS_INVALID - hw_init false or hw function does not exist
870 enum dmub_status dmub_srv_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data);
873 * dmub_srv_wait_for_inbox0_ack() - wait for DMUB to ACK INBOX0 command
874 * @dmub: the dmub service
875 * @timeout_us: the maximum number of microseconds to wait
877 * Wait for DMUB to ACK the INBOX0 message
880 * DMUB_STATUS_OK - success
881 * DMUB_STATUS_INVALID - hw_init false or hw function does not exist
882 * DMUB_STATUS_TIMEOUT - wait for ack timed out
884 enum dmub_status dmub_srv_wait_for_inbox0_ack(struct dmub_srv *dmub, uint32_t timeout_us);
887 * dmub_srv_wait_for_inbox0_ack() - clear ACK register for INBOX0
888 * @dmub: the dmub service
890 * Clear ACK register for INBOX0
893 * DMUB_STATUS_OK - success
894 * DMUB_STATUS_INVALID - hw_init false or hw function does not exist
896 enum dmub_status dmub_srv_clear_inbox0_ack(struct dmub_srv *dmub);
899 * dmub_srv_subvp_save_surf_addr() - Save primary and meta address for subvp on each flip
900 * @dmub: The dmub service
901 * @addr: The surface address to be programmed on the current flip
902 * @subvp_index: Index of subvp pipe, indicates which subvp pipe the address should be saved for
904 * Function to save the surface flip addr into scratch registers. This is to fix a race condition
905 * between FW and driver reading / writing to the surface address at the same time. This is
906 * required because there is no EARLIEST_IN_USE_META.
911 void dmub_srv_subvp_save_surf_addr(struct dmub_srv *dmub, const struct dc_plane_address *addr, uint8_t subvp_index);
914 * dmub_srv_set_power_state() - Track DC power state in dmub_srv
915 * @dmub: The dmub service
916 * @power_state: DC power state setting
918 * Store DC power state in dmub_srv. If dmub_srv is in D3, then don't send messages to DMUB
923 void dmub_srv_set_power_state(struct dmub_srv *dmub, enum dmub_srv_power_state_type dmub_srv_power_state);
925 #if defined(__cplusplus)
929 #endif /* _DMUB_SRV_H_ */