/*
* Copyright 2019 Advanced Micro Devices , Inc .
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDER ( S ) OR AUTHOR ( S ) BE LIABLE FOR ANY CLAIM , DAMAGES OR
* OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE ,
* ARISING FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE .
*
* Authors : AMD
*
*/
#ifndef _DMUB_SRV_H_
#define _DMUB_SRV_H_
/**
* DOC : DMUB interface and operation
*
* DMUB is the interface to the display DMCUB microcontroller on DCN hardware .
* It delegates hardware initialization and command submission to the
* microcontroller . DMUB is the shortname for DMCUB .
*
* This interface is not thread - safe . Ensure that all access to the interface
* is properly synchronized by the caller .
*
* Initialization and usage of the DMUB service should be done in the
* steps given below :
*
* 1 . dmub_srv_create ( )
* 2 . dmub_srv_has_hw_support ( )
* 3 . dmub_srv_calc_region_info ( )
* 4 . dmub_srv_hw_init ( )
*
* The call to dmub_srv_create ( ) is required to use the server .
*
* The calls to dmub_srv_has_hw_support ( ) and dmub_srv_calc_region_info ( )
* are helpers to query cache window size and allocate framebuffer ( s )
* for the cache windows .
*
* The call to dmub_srv_hw_init ( ) programs the DMCUB registers to prepare
* for command submission . Commands can be queued via dmub_srv_fb_cmd_queue ( )
* and executed via dmub_srv_fb_cmd_execute ( ) .
*
* If the queue is full the dmub_srv_wait_for_idle ( ) call can be used to
* wait until the queue has been cleared .
*
* Destroying the DMUB service can be done by calling dmub_srv_destroy ( ) .
* This does not clear DMUB hardware state , only software state .
*
* The interface is intended to be standalone and should not depend on any
* other component within DAL .
*/
#include "inc/dmub_cmd.h"
#include "dc/dc_types.h"
#define DMUB_PC_SNAPSHOT_COUNT 10
/* Default tracebuffer size if meta is absent. */
#define DMUB_TRACE_BUFFER_SIZE (64 * 1024 )
/* Forward declarations */
struct dmub_srv;
struct dmub_srv_common_regs;
struct dmub_srv_dcn31_regs;
struct dmcub_trace_buf_entry;
/* enum dmub_window_memory_type - memory location type specification for windows */
enum dmub_window_memory_type {
DMUB_WINDOW_MEMORY_TYPE_FB = 0 ,
DMUB_WINDOW_MEMORY_TYPE_GART
};
/* enum dmub_status - return code for dmcub functions */
enum dmub_status {
DMUB_STATUS_OK = 0 ,
DMUB_STATUS_NO_CTX,
DMUB_STATUS_QUEUE_FULL,
DMUB_STATUS_TIMEOUT,
DMUB_STATUS_INVALID,
DMUB_STATUS_HW_FAILURE,
DMUB_STATUS_POWER_STATE_D3
};
/* enum dmub_asic - dmub asic identifier */
enum dmub_asic {
DMUB_ASIC_NONE = 0 ,
DMUB_ASIC_DCN20,
DMUB_ASIC_DCN21,
DMUB_ASIC_DCN30,
DMUB_ASIC_DCN301,
DMUB_ASIC_DCN302,
DMUB_ASIC_DCN303,
DMUB_ASIC_DCN31,
DMUB_ASIC_DCN31B,
DMUB_ASIC_DCN314,
DMUB_ASIC_DCN315,
DMUB_ASIC_DCN316,
DMUB_ASIC_DCN32,
DMUB_ASIC_DCN321,
DMUB_ASIC_DCN35,
DMUB_ASIC_DCN351,
DMUB_ASIC_DCN36,
DMUB_ASIC_DCN401,
DMUB_ASIC_MAX,
};
/* enum dmub_window_id - dmub window identifier */
enum dmub_window_id {
DMUB_WINDOW_0_INST_CONST = 0 ,
DMUB_WINDOW_1_STACK,
DMUB_WINDOW_2_BSS_DATA,
DMUB_WINDOW_3_VBIOS,
DMUB_WINDOW_4_MAILBOX,
DMUB_WINDOW_5_TRACEBUFF,
DMUB_WINDOW_6_FW_STATE,
DMUB_WINDOW_7_SCRATCH_MEM,
DMUB_WINDOW_IB_MEM,
DMUB_WINDOW_SHARED_STATE,
DMUB_WINDOW_LSDMA_BUFFER,
DMUB_WINDOW_TOTAL,
};
/* enum dmub_notification_type - dmub outbox notification identifier */
enum dmub_notification_type {
DMUB_NOTIFICATION_NO_DATA = 0 ,
DMUB_NOTIFICATION_AUX_REPLY,
DMUB_NOTIFICATION_HPD,
DMUB_NOTIFICATION_HPD_IRQ,
DMUB_NOTIFICATION_SET_CONFIG_REPLY,
DMUB_NOTIFICATION_DPIA_NOTIFICATION,
DMUB_NOTIFICATION_HPD_SENSE_NOTIFY,
DMUB_NOTIFICATION_FUSED_IO,
DMUB_NOTIFICATION_MAX
};
/**
* DPIA NOTIFICATION Response Type
*/
enum dpia_notify_bw_alloc_status {
DPIA_BW_REQ_FAILED = 0 ,
DPIA_BW_REQ_SUCCESS,
DPIA_EST_BW_CHANGED,
DPIA_BW_ALLOC_CAPS_CHANGED
};
/* enum dmub_memory_access_type - memory access method */
enum dmub_memory_access_type {
DMUB_MEMORY_ACCESS_DEFAULT,
DMUB_MEMORY_ACCESS_CPU = DMUB_MEMORY_ACCESS_DEFAULT,
DMUB_MEMORY_ACCESS_DMA
};
/* enum dmub_power_state type - to track DC power state in dmub_srv */
enum dmub_srv_power_state_type {
DMUB_POWER_STATE_UNDEFINED = 0 ,
DMUB_POWER_STATE_D0 = 1 ,
DMUB_POWER_STATE_D3 = 8
};
/* enum dmub_inbox_cmd_interface type - defines default interface for host->dmub commands */
enum dmub_inbox_cmd_interface_type {
DMUB_CMD_INTERFACE_DEFAULT = 0 ,
DMUB_CMD_INTERFACE_FB = 1 ,
DMUB_CMD_INTERFACE_REG = 2 ,
};
/**
* struct dmub_region - dmub hw memory region
* @ base : base address for region , must be 256 byte aligned
* @ top : top address for region
*/
struct dmub_region {
uint32_t base;
uint32_t top;
};
/**
* struct dmub_window - dmub hw cache window
* @ off : offset to the fb memory in gpu address space
* @ r : region in uc address space for cache window
*/
struct dmub_window {
union dmub_addr offset;
struct dmub_region region;
};
/**
* struct dmub_fb - defines a dmub framebuffer memory region
* @ cpu_addr : cpu virtual address for the region , NULL if invalid
* @ gpu_addr : gpu virtual address for the region , NULL if invalid
* @ size : size of the region in bytes , zero if invalid
*/
struct dmub_fb {
void *cpu_addr;
uint64_t gpu_addr;
uint32_t size;
};
/**
* struct dmub_srv_region_params - params used for calculating dmub regions
* @ inst_const_size : size of the fw inst const section
* @ bss_data_size : size of the fw bss data section
* @ vbios_size : size of the vbios data
* @ fw_bss_data : raw firmware bss data section
*/
struct dmub_srv_region_params {
uint32_t inst_const_size;
uint32_t bss_data_size;
uint32_t vbios_size;
const uint8_t *fw_inst_const;
const uint8_t *fw_bss_data;
const enum dmub_window_memory_type *window_memory_type;
};
/**
* struct dmub_srv_region_info - output region info from the dmub service
* @ fb_size : required minimum fb size for all regions , aligned to 4096 bytes
* @ num_regions : number of regions used by the dmub service
* @ regions : region info
*
* The regions are aligned such that they can be all placed within the
* same framebuffer but they can also be placed into different framebuffers .
*
* The size of each region can be calculated by the caller :
* size = reg . top - reg . base
*
* Care must be taken when performing custom allocations to ensure that each
* region base address is 256 byte aligned .
*/
struct dmub_srv_region_info {
uint32_t fb_size;
uint32_t gart_size;
uint8_t num_regions;
struct dmub_region regions[DMUB_WINDOW_TOTAL];
};
/**
* struct dmub_srv_memory_params - parameters used for driver fb setup
* @ region_info : region info calculated by dmub service
* @ cpu_fb_addr : base cpu address for the framebuffer
* @ cpu_inbox_addr : base cpu address for the gart
* @ gpu_fb_addr : base gpu virtual address for the framebuffer
* @ gpu_inbox_addr : base gpu virtual address for the gart
*/
struct dmub_srv_memory_params {
const struct dmub_srv_region_info *region_info;
void *cpu_fb_addr;
void *cpu_gart_addr;
uint64_t gpu_fb_addr;
uint64_t gpu_gart_addr;
const enum dmub_window_memory_type *window_memory_type;
};
/**
* struct dmub_srv_fb_info - output fb info from the dmub service
* @ num_fbs : number of required dmub framebuffers
* @ fbs : fb data for each region
*
* Output from the dmub service helper that can be used by the
* driver to prepare dmub_fb that can be passed into the dmub
* hw init service .
*
* Assumes that all regions are within the same framebuffer
* and have been setup according to the region_info generated
* by the dmub service .
*/
struct dmub_srv_fb_info {
uint8_t num_fb;
struct dmub_fb fb[DMUB_WINDOW_TOTAL];
};
/*
* struct dmub_srv_hw_params - params for dmub hardware initialization
* @ fb : framebuffer info for each region
* @ fb_base : base of the framebuffer aperture
* @ fb_offset : offset of the framebuffer aperture
* @ psp_version : psp version to pass for DMCU init
* @ load_inst_const : true if DMUB should load inst const fw
*/
struct dmub_srv_hw_params {
struct dmub_fb *fb[DMUB_WINDOW_TOTAL];
uint64_t fb_base;
uint64_t fb_offset;
uint32_t psp_version;
bool load_inst_const;
bool skip_panel_power_sequence;
bool disable_z10;
bool power_optimization;
bool dpia_supported;
bool disable_dpia;
bool usb4_cm_version;
bool fw_in_system_memory;
bool dpia_hpd_int_enable_supported;
bool disable_clock_gate;
bool disallow_dispclk_dppclk_ds;
bool ips_sequential_ono;
enum dmub_memory_access_type mem_access_type;
enum dmub_ips_disable_type disable_ips;
bool disallow_phy_access;
bool disable_sldo_opt;
bool enable_non_transparent_setconfig;
bool lower_hbr3_phy_ssc;
};
/**
* struct dmub_srv_debug - Debug info for dmub_srv
* @ timeout_occured : Indicates a timeout occured on any message from driver to dmub
* @ timeout_cmd : first cmd sent from driver that timed out - subsequent timeouts are not stored
*/
struct dmub_timeout_info {
bool timeout_occured;
union dmub_rb_cmd timeout_cmd;
unsigned long long timestamp;
};
/**
* struct dmub_diagnostic_data - Diagnostic data retrieved from DMCUB for
* debugging purposes , including logging , crash analysis , etc .
*/
struct dmub_diagnostic_data {
uint32_t dmcub_version;
uint32_t scratch[17 ];
uint32_t pc[DMUB_PC_SNAPSHOT_COUNT];
uint32_t undefined_address_fault_addr;
uint32_t inst_fetch_fault_addr;
uint32_t data_write_fault_addr;
uint32_t inbox1_rptr;
uint32_t inbox1_wptr;
uint32_t inbox1_size;
uint32_t inbox0_rptr;
uint32_t inbox0_wptr;
uint32_t inbox0_size;
uint32_t outbox1_rptr;
uint32_t outbox1_wptr;
uint32_t outbox1_size;
uint32_t gpint_datain0;
struct dmub_timeout_info timeout_info;
uint8_t is_dmcub_enabled : 1 ;
uint8_t is_dmcub_soft_reset : 1 ;
uint8_t is_dmcub_secure_reset : 1 ;
uint8_t is_traceport_en : 1 ;
uint8_t is_cw0_enabled : 1 ;
uint8_t is_cw6_enabled : 1 ;
uint8_t is_pwait : 1 ;
};
struct dmub_srv_inbox {
/* generic status */
uint64_t num_submitted;
uint64_t num_reported;
union {
/* frame buffer mailbox status */
struct dmub_rb rb;
/* register mailbox status */
struct {
bool is_pending;
bool is_multi_pending;
};
};
};
/**
* struct dmub_srv_base_funcs - Driver specific base callbacks
*/
struct dmub_srv_base_funcs {
/**
* @ reg_read :
*
* Hook for reading a register .
*
* Return : The 32 - bit register value from the given address .
*/
uint32_t (*reg_read)(void *ctx, uint32_t address);
/**
* @ reg_write :
*
* Hook for writing a value to the register specified by address .
*/
void (*reg_write)(void *ctx, uint32_t address, uint32_t value);
};
/**
* struct dmub_srv_hw_funcs - hardware sequencer funcs for dmub
*/
struct dmub_srv_hw_funcs {
/* private: internal use only */
void (*init)(struct dmub_srv *dmub);
void (*reset)(struct dmub_srv *dmub);
void (*reset_release)(struct dmub_srv *dmub);
void (*backdoor_load)(struct dmub_srv *dmub,
const struct dmub_window *cw0,
const struct dmub_window *cw1);
void (*backdoor_load_zfb_mode)(struct dmub_srv *dmub,
const struct dmub_window *cw0,
const struct dmub_window *cw1);
void (*setup_windows)(struct dmub_srv *dmub,
const struct dmub_window *cw2,
const struct dmub_window *cw3,
const struct dmub_window *cw4,
const struct dmub_window *cw5,
const struct dmub_window *cw6,
const struct dmub_window *region6);
void (*setup_mailbox)(struct dmub_srv *dmub,
const struct dmub_region *inbox1);
uint32_t (*get_inbox1_wptr)(struct dmub_srv *dmub);
uint32_t (*get_inbox1_rptr)(struct dmub_srv *dmub);
void (*set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset);
void (*setup_out_mailbox)(struct dmub_srv *dmub,
const struct dmub_region *outbox1);
uint32_t (*get_outbox1_wptr)(struct dmub_srv *dmub);
void (*set_outbox1_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset);
void (*setup_outbox0)(struct dmub_srv *dmub,
const struct dmub_region *outbox0);
uint32_t (*get_outbox0_wptr)(struct dmub_srv *dmub);
void (*set_outbox0_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset);
uint32_t (*emul_get_inbox1_rptr)(struct dmub_srv *dmub);
uint32_t (*emul_get_inbox1_wptr)(struct dmub_srv *dmub);
void (*emul_set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset);
bool (*is_supported)(struct dmub_srv *dmub);
bool (*is_psrsu_supported)(struct dmub_srv *dmub);
bool (*is_hw_init)(struct dmub_srv *dmub);
bool (*is_hw_powered_up)(struct dmub_srv *dmub);
void (*enable_dmub_boot_options)(struct dmub_srv *dmub,
const struct dmub_srv_hw_params *params);
void (*skip_dmub_panel_power_sequence)(struct dmub_srv *dmub, bool skip);
union dmub_fw_boot_status (*get_fw_status)(struct dmub_srv *dmub);
union dmub_fw_boot_options (*get_fw_boot_option)(struct dmub_srv *dmub);
void (*set_gpint)(struct dmub_srv *dmub,
union dmub_gpint_data_register reg);
bool (*is_gpint_acked)(struct dmub_srv *dmub,
union dmub_gpint_data_register reg);
uint32_t (*get_gpint_response)(struct dmub_srv *dmub);
uint32_t (*get_gpint_dataout)(struct dmub_srv *dmub);
void (*configure_dmub_in_system_memory)(struct dmub_srv *dmub);
void (*clear_inbox0_ack_register)(struct dmub_srv *dmub);
uint32_t (*read_inbox0_ack_register)(struct dmub_srv *dmub);
void (*send_inbox0_cmd)(struct dmub_srv *dmub, union dmub_inbox0_data_register data);
uint32_t (*get_current_time)(struct dmub_srv *dmub);
void (*get_diagnostic_data)(struct dmub_srv *dmub);
bool (*should_detect)(struct dmub_srv *dmub);
void (*init_reg_offsets)(struct dmub_srv *dmub, struct dc_context *ctx);
void (*subvp_save_surf_addr)(struct dmub_srv *dmub, const struct dc_plane_address *addr, uint8_t subvp_index);
void (*send_reg_inbox0_cmd_msg)(struct dmub_srv *dmub,
union dmub_rb_cmd *cmd);
uint32_t (*read_reg_inbox0_rsp_int_status)(struct dmub_srv *dmub);
void (*read_reg_inbox0_cmd_rsp)(struct dmub_srv *dmub,
union dmub_rb_cmd *cmd);
void (*write_reg_inbox0_rsp_int_ack)(struct dmub_srv *dmub);
void (*clear_reg_inbox0_rsp_int_ack)(struct dmub_srv *dmub);
void (*enable_reg_inbox0_rsp_int)(struct dmub_srv *dmub, bool enable);
uint32_t (*read_reg_outbox0_rdy_int_status)(struct dmub_srv *dmub);
void (*write_reg_outbox0_rdy_int_ack)(struct dmub_srv *dmub);
void (*read_reg_outbox0_msg)(struct dmub_srv *dmub, uint32_t *msg);
void (*write_reg_outbox0_rsp)(struct dmub_srv *dmub, uint32_t *rsp);
uint32_t (*read_reg_outbox0_rsp_int_status)(struct dmub_srv *dmub);
void (*enable_reg_outbox0_rdy_int)(struct dmub_srv *dmub, bool enable);
};
/**
* struct dmub_srv_create_params - params for dmub service creation
* @ base_funcs : driver supplied base routines
* @ hw_funcs : optional overrides for hw funcs
* @ user_ctx : context data for callback funcs
* @ asic : driver supplied asic
* @ fw_version : the current firmware version , if any
* @ is_virtual : false for hw support only
*/
struct dmub_srv_create_params {
struct dmub_srv_base_funcs funcs;
struct dmub_srv_hw_funcs *hw_funcs;
void *user_ctx;
enum dmub_asic asic;
uint32_t fw_version;
bool is_virtual;
enum dmub_inbox_cmd_interface_type inbox_type;
};
/**
* struct dmub_srv - software state for dmcub
* @ asic : dmub asic identifier
* @ user_ctx : user provided context for the dmub_srv
* @ fw_version : the current firmware version , if any
* @ is_virtual : false if hardware support only
* @ shared_state : dmub shared state between firmware and driver
* @ fw_state : dmub firmware state pointer
*/
struct dmub_srv {
enum dmub_asic asic;
void *user_ctx;
uint32_t fw_version;
bool is_virtual;
struct dmub_fb scratch_mem_fb;
struct dmub_fb ib_mem_gart;
volatile struct dmub_shared_state_feature_block *shared_state;
volatile const struct dmub_fw_state *fw_state;
/* private: internal use only */
const struct dmub_srv_common_regs *regs;
const struct dmub_srv_dcn31_regs *regs_dcn31;
struct dmub_srv_dcn32_regs *regs_dcn32;
struct dmub_srv_dcn35_regs *regs_dcn35;
const struct dmub_srv_dcn401_regs *regs_dcn401;
struct dmub_srv_base_funcs funcs;
struct dmub_srv_hw_funcs hw_funcs;
struct dmub_srv_inbox inbox1;
uint32_t inbox1_last_wptr;
struct dmub_srv_inbox reg_inbox0;
/**
* outbox1_rb is accessed without locks ( dal & dc )
* and to be used only in dmub_srv_stat_get_notification ( )
*/
struct dmub_rb outbox1_rb;
struct dmub_rb outbox0_rb;
bool sw_init;
bool hw_init;
uint64_t fb_base;
uint64_t fb_offset;
uint32_t psp_version;
/* Feature capabilities reported by fw */
struct dmub_fw_meta_info meta_info;
struct dmub_feature_caps feature_caps;
struct dmub_visual_confirm_color visual_confirm_color;
enum dmub_inbox_cmd_interface_type inbox_type;
enum dmub_srv_power_state_type power_state;
struct dmub_diagnostic_data debug;
struct dmub_fb lsdma_rb_fb;
};
/**
* struct dmub_notification - dmub notification data
* @ type : dmub notification type
* @ link_index : link index to identify aux connection
* @ result : USB4 status returned from dmub
* @ pending_notification : Indicates there are other pending notifications
* @ aux_reply : aux reply
* @ hpd_status : hpd status
* @ bw_alloc_reply : BW Allocation reply from CM / DPIA
*/
struct dmub_notification {
enum dmub_notification_type type;
uint8_t link_index;
uint8_t result;
bool pending_notification;
union {
struct aux_reply_data aux_reply;
enum dp_hpd_status hpd_status;
enum set_config_status sc_status;
struct dmub_rb_cmd_hpd_sense_notify_data hpd_sense_notify;
struct dmub_cmd_fused_request fused_request;
};
};
/**
* DMUB firmware version helper macro - useful for checking if the version
* of a firmware to know if feature or functionality is supported or present .
*/
#define DMUB_FW_VERSION(major, minor, revision) \
((((major) & 0 xFF) << 24 ) | (((minor) & 0 xFF) << 16 ) | (((revision) & 0 xFF) << 8 ))
/**
* dmub_srv_create ( ) - creates the DMUB service .
* @ dmub : the dmub service
* @ params : creation parameters for the service
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_create(struct dmub_srv *dmub,
const struct dmub_srv_create_params *params);
/**
* dmub_srv_destroy ( ) - destroys the DMUB service .
* @ dmub : the dmub service
*/
void dmub_srv_destroy(struct dmub_srv *dmub);
/**
* dmub_srv_calc_region_info ( ) - retreives region info from the dmub service
* @ dmub : the dmub service
* @ params : parameters used to calculate region locations
* @ info_out : the output region info from dmub
*
* Calculates the base and top address for all relevant dmub regions
* using the parameters given ( if any ) .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status
dmub_srv_calc_region_info(struct dmub_srv *dmub,
const struct dmub_srv_region_params *params,
struct dmub_srv_region_info *out);
/**
* dmub_srv_calc_region_info ( ) - retreives fb info from the dmub service
* @ dmub : the dmub service
* @ params : parameters used to calculate fb locations
* @ info_out : the output fb info from dmub
*
* Calculates the base and top address for all relevant dmub regions
* using the parameters given ( if any ) .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_calc_mem_info(struct dmub_srv *dmub,
const struct dmub_srv_memory_params *params,
struct dmub_srv_fb_info *out);
/**
* dmub_srv_has_hw_support ( ) - returns hw support state for dmcub
* @ dmub : the dmub service
* @ is_supported : hw support state
*
* Queries the hardware for DMCUB support and returns the result .
*
* Can be called before dmub_srv_hw_init ( ) .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_has_hw_support(struct dmub_srv *dmub,
bool *is_supported);
/**
* dmub_srv_is_hw_init ( ) - returns hardware init state
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_is_hw_init(struct dmub_srv *dmub, bool *is_hw_init);
/**
* dmub_srv_hw_init ( ) - initializes the underlying DMUB hardware
* @ dmub : the dmub service
* @ params : params for hardware initialization
*
* Resets the DMUB hardware and performs backdoor loading of the
* required cache regions based on the input framebuffer regions .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_NO_CTX - dmcub context not initialized
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub,
const struct dmub_srv_hw_params *params);
/**
* dmub_srv_hw_reset ( ) - puts the DMUB hardware in reset state if initialized
* @ dmub : the dmub service
*
* Before destroying the DMUB service or releasing the backing framebuffer
* memory we ' ll need to put the DMCUB into reset first .
*
* A subsequent call to dmub_srv_hw_init ( ) will re - enable the DMCUB .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub);
/**
* dmub_srv_fb_cmd_queue ( ) - queues a command to the DMUB
* @ dmub : the dmub service
* @ cmd : the command to queue
*
* Queues a command to the DMUB service but does not begin execution
* immediately .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_QUEUE_FULL - no remaining room in queue
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_fb_cmd_queue(struct dmub_srv *dmub,
const union dmub_rb_cmd *cmd);
/**
* dmub_srv_fb_cmd_execute ( ) - Executes a queued sequence to the dmub
* @ dmub : the dmub service
*
* Begins execution of queued commands on the dmub .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_fb_cmd_execute(struct dmub_srv *dmub);
/**
* dmub_srv_wait_for_hw_pwr_up ( ) - Waits for firmware hardware power up is completed
* @ dmub : the dmub service
* @ timeout_us : the maximum number of microseconds to wait
*
* Waits until firmware hardware is powered up . The maximum
* wait time is given in microseconds to prevent spinning forever .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_TIMEOUT - timed out
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_wait_for_hw_pwr_up(struct dmub_srv *dmub,
uint32_t timeout_us);
bool dmub_srv_is_hw_pwr_up(struct dmub_srv *dmub);
/**
* dmub_srv_wait_for_auto_load ( ) - Waits for firmware auto load to complete
* @ dmub : the dmub service
* @ timeout_us : the maximum number of microseconds to wait
*
* Waits until firmware has been autoloaded by the DMCUB . The maximum
* wait time is given in microseconds to prevent spinning forever .
*
* On ASICs without firmware autoload support this function will return
* immediately .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_TIMEOUT - wait for phy init timed out
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_wait_for_auto_load(struct dmub_srv *dmub,
uint32_t timeout_us);
/**
* dmub_srv_wait_for_phy_init ( ) - Waits for DMUB PHY init to complete
* @ dmub : the dmub service
* @ timeout_us : the maximum number of microseconds to wait
*
* Waits until the PHY has been initialized by the DMUB . The maximum
* wait time is given in microseconds to prevent spinning forever .
*
* On ASICs without PHY init support this function will return
* immediately .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_TIMEOUT - wait for phy init timed out
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_wait_for_phy_init(struct dmub_srv *dmub,
uint32_t timeout_us);
/**
* dmub_srv_wait_for_pending ( ) - Re - entrant wait for messages currently pending
* @ dmub : the dmub service
* @ timeout_us : the maximum number of microseconds to wait
*
* Waits until the commands queued prior to this call are complete .
* If interfaces remain busy due to additional work being submitted
* concurrently , this function will not continue to wait .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_TIMEOUT - wait for buffer to flush timed out
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_wait_for_pending(struct dmub_srv *dmub,
uint32_t timeout_us);
/**
* dmub_srv_wait_for_idle ( ) - Waits for the DMUB to be idle
* @ dmub : the dmub service
* @ timeout_us : the maximum number of microseconds to wait
*
* Waits until the DMUB buffer is empty and all commands have
* finished processing . The maximum wait time is given in
* microseconds to prevent spinning forever .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_TIMEOUT - wait for buffer to flush timed out
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_wait_for_idle(struct dmub_srv *dmub,
uint32_t timeout_us);
/**
* dmub_srv_send_gpint_command ( ) - Sends a GPINT based command .
* @ dmub : the dmub service
* @ command_code : the command code to send
* @ param : the command parameter to send
* @ timeout_us : the maximum number of microseconds to wait
*
* Sends a command via the general purpose interrupt ( GPINT ) .
* Waits for the number of microseconds specified by timeout_us
* for the command ACK before returning .
*
* Can be called after software initialization .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_TIMEOUT - wait for ACK timed out
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status
dmub_srv_send_gpint_command(struct dmub_srv *dmub,
enum dmub_gpint_command command_code,
uint16_t param, uint32_t timeout_us);
/**
* dmub_srv_get_gpint_response ( ) - Queries the GPINT response .
* @ dmub : the dmub service
* @ response : the response for the last GPINT
*
* Returns the response code for the last GPINT interrupt .
*
* Can be called after software initialization .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_get_gpint_response(struct dmub_srv *dmub,
uint32_t *response);
/**
* dmub_srv_get_gpint_dataout ( ) - Queries the GPINT DATAOUT .
* @ dmub : the dmub service
* @ dataout : the data for the GPINT DATAOUT
*
* Returns the response code for the last GPINT DATAOUT interrupt .
*
* Can be called after software initialization .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_get_gpint_dataout(struct dmub_srv *dmub,
uint32_t *dataout);
/**
* dmub_flush_buffer_mem ( ) - Read back entire frame buffer region .
* This ensures that the write from x86 has been flushed and will not
* hang the DMCUB .
* @ fb : frame buffer to flush
*
* Can be called after software initialization .
*/
void dmub_flush_buffer_mem(const struct dmub_fb *fb);
/**
* dmub_srv_get_fw_boot_status ( ) - Returns the DMUB boot status bits .
*
* @ dmub : the dmub service
* @ status : out pointer for firmware status
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error , unsupported
*/
enum dmub_status dmub_srv_get_fw_boot_status(struct dmub_srv *dmub,
union dmub_fw_boot_status *status);
enum dmub_status dmub_srv_get_fw_boot_option(struct dmub_srv *dmub,
union dmub_fw_boot_options *option);
enum dmub_status dmub_srv_set_skip_panel_power_sequence(struct dmub_srv *dmub,
bool skip);
bool dmub_srv_get_outbox0_msg(struct dmub_srv *dmub, struct dmcub_trace_buf_entry *entry);
bool dmub_srv_get_diagnostic_data(struct dmub_srv *dmub);
bool dmub_srv_should_detect(struct dmub_srv *dmub);
/**
* dmub_srv_send_inbox0_cmd ( ) - Send command to DMUB using INBOX0
* @ dmub : the dmub service
* @ data : the data to be sent in the INBOX0 command
*
* Send command by writing directly to INBOX0 WPTR
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - hw_init false or hw function does not exist
*/
enum dmub_status dmub_srv_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data);
/**
* dmub_srv_wait_for_inbox0_ack ( ) - wait for DMUB to ACK INBOX0 command
* @ dmub : the dmub service
* @ timeout_us : the maximum number of microseconds to wait
*
* Wait for DMUB to ACK the INBOX0 message
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - hw_init false or hw function does not exist
* DMUB_STATUS_TIMEOUT - wait for ack timed out
*/
enum dmub_status dmub_srv_wait_for_inbox0_ack(struct dmub_srv *dmub, uint32_t timeout_us);
/**
* dmub_srv_wait_for_inbox0_ack ( ) - clear ACK register for INBOX0
* @ dmub : the dmub service
*
* Clear ACK register for INBOX0
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - hw_init false or hw function does not exist
*/
enum dmub_status dmub_srv_clear_inbox0_ack(struct dmub_srv *dmub);
/**
* dmub_srv_subvp_save_surf_addr ( ) - Save primary and meta address for subvp on each flip
* @ dmub : The dmub service
* @ addr : The surface address to be programmed on the current flip
* @ subvp_index : Index of subvp pipe , indicates which subvp pipe the address should be saved for
*
* Function to save the surface flip addr into scratch registers . This is to fix a race condition
* between FW and driver reading / writing to the surface address at the same time . This is
* required because there is no EARLIEST_IN_USE_META .
*
* Return :
* void
*/
void dmub_srv_subvp_save_surf_addr(struct dmub_srv *dmub, const struct dc_plane_address *addr, uint8_t subvp_index);
/**
* dmub_srv_set_power_state ( ) - Track DC power state in dmub_srv
* @ dmub : The dmub service
* @ power_state : DC power state setting
*
* Store DC power state in dmub_srv . If dmub_srv is in D3 , then don ' t send messages to DMUB
*
* Return :
* void
*/
void dmub_srv_set_power_state(struct dmub_srv *dmub, enum dmub_srv_power_state_type dmub_srv_power_state);
/**
* dmub_srv_reg_cmd_execute ( ) - Executes provided command to the dmub
* @ dmub : the dmub service
* @ cmd : the command packet to be executed
*
* Executes a single command for the dmub .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_reg_cmd_execute(struct dmub_srv *dmub, union dmub_rb_cmd *cmd);
/**
* dmub_srv_cmd_get_response ( ) - Copies return data for command into buffer
* @ dmub : the dmub service
* @ cmd_rsp : response buffer
*
* Copies return data for command into buffer
*/
void dmub_srv_cmd_get_response(struct dmub_srv *dmub,
union dmub_rb_cmd *cmd_rsp);
/**
* dmub_srv_sync_inboxes ( ) - Sync inbox state
* @ dmub : the dmub service
*
* Sync inbox state
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_sync_inboxes(struct dmub_srv *dmub);
/**
* dmub_srv_wait_for_inbox_free ( ) - Waits for space in the DMUB inbox to free up
* @ dmub : the dmub service
* @ timeout_us : the maximum number of microseconds to wait
* @ num_free_required : number of free entries required
*
* Waits until the DMUB buffer is freed to the specified number .
* The maximum wait time is given in microseconds to prevent spinning
* forever .
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_TIMEOUT - wait for buffer to flush timed out
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_wait_for_inbox_free(struct dmub_srv *dmub,
uint32_t timeout_us,
uint32_t num_free_required);
/**
* dmub_srv_update_inbox_status ( ) - Updates pending status for inbox & reg inbox0
* @ dmub : the dmub service
*
* Return :
* DMUB_STATUS_OK - success
* DMUB_STATUS_TIMEOUT - wait for buffer to flush timed out
* DMUB_STATUS_HW_FAILURE - issue with HW programming
* DMUB_STATUS_INVALID - unspecified error
*/
enum dmub_status dmub_srv_update_inbox_status(struct dmub_srv *dmub);
#endif /* _DMUB_SRV_H_ */
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