/* * 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_CMD_H_ #define _DMUB_CMD_H_ #include #include #include #include #include #include "atomfirmware.h" /* Firmware versioning. */ #ifdef DMUB_EXPOSE_VERSION #define DMUB_FW_VERSION_GIT_HASH 0xf547f0b9d #define DMUB_FW_VERSION_MAJOR 0 #define DMUB_FW_VERSION_MINOR 0 #define DMUB_FW_VERSION_REVISION 34 #define DMUB_FW_VERSION_TEST 0 #define DMUB_FW_VERSION_VBIOS 0 #define DMUB_FW_VERSION_HOTFIX 0 #define DMUB_FW_VERSION_UCODE (((DMUB_FW_VERSION_MAJOR & 0xFF) << 24) | \ ((DMUB_FW_VERSION_MINOR & 0xFF) << 16) | \ ((DMUB_FW_VERSION_REVISION & 0xFF) << 8) | \ ((DMUB_FW_VERSION_TEST & 0x1) << 7) | \ ((DMUB_FW_VERSION_VBIOS & 0x1) << 6) | \ (DMUB_FW_VERSION_HOTFIX & 0x3F)) #endif //================================================================== /* Basic type definitions. */ #define SET_ABM_PIPE_GRADUALLY_DISABLE 0 #define SET_ABM_PIPE_IMMEDIATELY_DISABLE 255 #define SET_ABM_PIPE_NORMAL 1 /* Maximum number of streams on any ASIC. */ #define DMUB_MAX_STREAMS 6 /* Maximum number of planes on any ASIC. */ #define DMUB_MAX_PLANES 6 #ifndef PHYSICAL_ADDRESS_LOC #define PHYSICAL_ADDRESS_LOC union large_integer #endif #if defined(__cplusplus) extern "C" { #endif #ifndef dmub_memcpy #define dmub_memcpy(dest, source, bytes) memcpy((dest), (source), (bytes)) #endif #ifndef dmub_memset #define dmub_memset(dest, val, bytes) memset((dest), (val), (bytes)) #endif #ifndef dmub_udelay #define dmub_udelay(microseconds) udelay(microseconds) #endif union dmub_addr { struct { uint32_t low_part; uint32_t high_part; } u; uint64_t quad_part; }; union dmub_psr_debug_flags { struct { uint32_t visual_confirm : 1; uint32_t use_hw_lock_mgr : 1; uint32_t log_line_nums : 1; } bitfields; uint32_t u32All; }; #if defined(__cplusplus) } #endif //============================================================================== //================================================================= //============================================================================== //< DMUB_META>================================================================== //============================================================================== #pragma pack(push, 1) /* Magic value for identifying dmub_fw_meta_info */ #define DMUB_FW_META_MAGIC 0x444D5542 /* Offset from the end of the file to the dmub_fw_meta_info */ #define DMUB_FW_META_OFFSET 0x24 /** * struct dmub_fw_meta_info - metadata associated with fw binary * * NOTE: This should be considered a stable API. Fields should * not be repurposed or reordered. New fields should be * added instead to extend the structure. * * @magic_value: magic value identifying DMUB firmware meta info * @fw_region_size: size of the firmware state region * @trace_buffer_size: size of the tracebuffer region * @fw_version: the firmware version information * @dal_fw: 1 if the firmware is DAL */ struct dmub_fw_meta_info { uint32_t magic_value; uint32_t fw_region_size; uint32_t trace_buffer_size; uint32_t fw_version; uint8_t dal_fw; uint8_t reserved[3]; }; /* Ensure that the structure remains 64 bytes. */ union dmub_fw_meta { struct dmub_fw_meta_info info; uint8_t reserved[64]; }; #pragma pack(pop) //============================================================================== //< DMUB_STATUS>================================================================ //============================================================================== /** * DMCUB scratch registers can be used to determine firmware status. * Current scratch register usage is as follows: * * SCRATCH0: FW Boot Status register * SCRATCH15: FW Boot Options register */ /* Register bit definition for SCRATCH0 */ union dmub_fw_boot_status { struct { uint32_t dal_fw : 1; uint32_t mailbox_rdy : 1; uint32_t optimized_init_done : 1; uint32_t restore_required : 1; } bits; uint32_t all; }; enum dmub_fw_boot_status_bit { DMUB_FW_BOOT_STATUS_BIT_DAL_FIRMWARE = (1 << 0), DMUB_FW_BOOT_STATUS_BIT_MAILBOX_READY = (1 << 1), DMUB_FW_BOOT_STATUS_BIT_OPTIMIZED_INIT_DONE = (1 << 2), DMUB_FW_BOOT_STATUS_BIT_RESTORE_REQUIRED = (1 << 3), }; /* Register bit definition for SCRATCH15 */ union dmub_fw_boot_options { struct { uint32_t pemu_env : 1; uint32_t fpga_env : 1; uint32_t optimized_init : 1; uint32_t reserved : 29; } bits; uint32_t all; }; enum dmub_fw_boot_options_bit { DMUB_FW_BOOT_OPTION_BIT_PEMU_ENV = (1 << 0), DMUB_FW_BOOT_OPTION_BIT_FPGA_ENV = (1 << 1), DMUB_FW_BOOT_OPTION_BIT_OPTIMIZED_INIT_DONE = (1 << 2), }; //============================================================================== //================================================================ //============================================================================== //< DMUB_VBIOS>================================================================= //============================================================================== /* * Command IDs should be treated as stable ABI. * Do not reuse or modify IDs. */ enum dmub_cmd_vbios_type { DMUB_CMD__VBIOS_DIGX_ENCODER_CONTROL = 0, DMUB_CMD__VBIOS_DIG1_TRANSMITTER_CONTROL = 1, DMUB_CMD__VBIOS_SET_PIXEL_CLOCK = 2, DMUB_CMD__VBIOS_ENABLE_DISP_POWER_GATING = 3, DMUB_CMD__VBIOS_LVTMA_CONTROL = 15, }; //============================================================================== //================================================================= //============================================================================== //< DMUB_GPINT>================================================================= //============================================================================== /** * The shifts and masks below may alternatively be used to format and read * the command register bits. */ #define DMUB_GPINT_DATA_PARAM_MASK 0xFFFF #define DMUB_GPINT_DATA_PARAM_SHIFT 0 #define DMUB_GPINT_DATA_COMMAND_CODE_MASK 0xFFF #define DMUB_GPINT_DATA_COMMAND_CODE_SHIFT 16 #define DMUB_GPINT_DATA_STATUS_MASK 0xF #define DMUB_GPINT_DATA_STATUS_SHIFT 28 /** * Command responses. */ #define DMUB_GPINT__STOP_FW_RESPONSE 0xDEADDEAD /** * The register format for sending a command via the GPINT. */ union dmub_gpint_data_register { struct { uint32_t param : 16; uint32_t command_code : 12; uint32_t status : 4; } bits; uint32_t all; }; /* * Command IDs should be treated as stable ABI. * Do not reuse or modify IDs. */ enum dmub_gpint_command { DMUB_GPINT__INVALID_COMMAND = 0, DMUB_GPINT__GET_FW_VERSION = 1, DMUB_GPINT__STOP_FW = 2, DMUB_GPINT__GET_PSR_STATE = 7, /** * DESC: Notifies DMCUB of the currently active streams. * ARGS: Stream mask, 1 bit per active stream index. */ DMUB_GPINT__IDLE_OPT_NOTIFY_STREAM_MASK = 8, }; //============================================================================== //================================================================= //============================================================================== //< DMUB_CMD>=================================================================== //============================================================================== #define DMUB_RB_CMD_SIZE 64 #define DMUB_RB_MAX_ENTRY 128 #define DMUB_RB_SIZE (DMUB_RB_CMD_SIZE * DMUB_RB_MAX_ENTRY) #define REG_SET_MASK 0xFFFF /* * Command IDs should be treated as stable ABI. * Do not reuse or modify IDs. */ enum dmub_cmd_type { DMUB_CMD__NULL = 0, DMUB_CMD__REG_SEQ_READ_MODIFY_WRITE = 1, DMUB_CMD__REG_SEQ_FIELD_UPDATE_SEQ = 2, DMUB_CMD__REG_SEQ_BURST_WRITE = 3, DMUB_CMD__REG_REG_WAIT = 4, DMUB_CMD__PLAT_54186_WA = 5, DMUB_CMD__PSR = 64, DMUB_CMD__ABM = 66, DMUB_CMD__HW_LOCK = 69, DMUB_CMD__VBIOS = 128, }; enum dmub_out_cmd_type { DMUB_OUT_CMD__NULL = 0, }; #pragma pack(push, 1) struct dmub_cmd_header { unsigned int type : 8; unsigned int sub_type : 8; unsigned int reserved0 : 8; unsigned int payload_bytes : 6; /* up to 60 bytes */ unsigned int reserved1 : 2; }; /* * Read modify write * * 60 payload bytes can hold up to 5 sets of read modify writes, * each take 3 dwords. * * number of sequences = header.payload_bytes / sizeof(struct dmub_cmd_read_modify_write_sequence) * * modify_mask = 0xffff'ffff means all fields are going to be updated. in this case * command parser will skip the read and we can use modify_mask = 0xffff'ffff as reg write */ struct dmub_cmd_read_modify_write_sequence { uint32_t addr; uint32_t modify_mask; uint32_t modify_value; }; #define DMUB_READ_MODIFY_WRITE_SEQ__MAX 5 struct dmub_rb_cmd_read_modify_write { struct dmub_cmd_header header; // type = DMUB_CMD__REG_SEQ_READ_MODIFY_WRITE struct dmub_cmd_read_modify_write_sequence seq[DMUB_READ_MODIFY_WRITE_SEQ__MAX]; }; /* * Update a register with specified masks and values sequeunce * * 60 payload bytes can hold address + up to 7 sets of mask/value combo, each take 2 dword * * number of field update sequence = (header.payload_bytes - sizeof(addr)) / sizeof(struct read_modify_write_sequence) * * * USE CASE: * 1. auto-increment register where additional read would update pointer and produce wrong result * 2. toggle a bit without read in the middle */ struct dmub_cmd_reg_field_update_sequence { uint32_t modify_mask; // 0xffff'ffff to skip initial read uint32_t modify_value; }; #define DMUB_REG_FIELD_UPDATE_SEQ__MAX 7 struct dmub_rb_cmd_reg_field_update_sequence { struct dmub_cmd_header header; uint32_t addr; struct dmub_cmd_reg_field_update_sequence seq[DMUB_REG_FIELD_UPDATE_SEQ__MAX]; }; /* * Burst write * * support use case such as writing out LUTs. * * 60 payload bytes can hold up to 14 values to write to given address * * number of payload = header.payload_bytes / sizeof(struct read_modify_write_sequence) */ #define DMUB_BURST_WRITE_VALUES__MAX 14 struct dmub_rb_cmd_burst_write { struct dmub_cmd_header header; // type = DMUB_CMD__REG_SEQ_BURST_WRITE uint32_t addr; uint32_t write_values[DMUB_BURST_WRITE_VALUES__MAX]; }; struct dmub_rb_cmd_common { struct dmub_cmd_header header; uint8_t cmd_buffer[DMUB_RB_CMD_SIZE - sizeof(struct dmub_cmd_header)]; }; struct dmub_cmd_reg_wait_data { uint32_t addr; uint32_t mask; uint32_t condition_field_value; uint32_t time_out_us; }; struct dmub_rb_cmd_reg_wait { struct dmub_cmd_header header; struct dmub_cmd_reg_wait_data reg_wait; }; struct dmub_cmd_PLAT_54186_wa { uint32_t DCSURF_SURFACE_CONTROL; uint32_t DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH; uint32_t DCSURF_PRIMARY_SURFACE_ADDRESS; uint32_t DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH_C; uint32_t DCSURF_PRIMARY_SURFACE_ADDRESS_C; struct { uint8_t hubp_inst : 4; uint8_t tmz_surface : 1; uint8_t immediate :1; uint8_t vmid : 4; uint8_t grph_stereo : 1; uint32_t reserved : 21; } flip_params; uint32_t reserved[9]; }; struct dmub_rb_cmd_PLAT_54186_wa { struct dmub_cmd_header header; struct dmub_cmd_PLAT_54186_wa flip; }; struct dmub_cmd_digx_encoder_control_data { union dig_encoder_control_parameters_v1_5 dig; }; struct dmub_rb_cmd_digx_encoder_control { struct dmub_cmd_header header; struct dmub_cmd_digx_encoder_control_data encoder_control; }; struct dmub_cmd_set_pixel_clock_data { struct set_pixel_clock_parameter_v1_7 clk; }; struct dmub_rb_cmd_set_pixel_clock { struct dmub_cmd_header header; struct dmub_cmd_set_pixel_clock_data pixel_clock; }; struct dmub_cmd_enable_disp_power_gating_data { struct enable_disp_power_gating_parameters_v2_1 pwr; }; struct dmub_rb_cmd_enable_disp_power_gating { struct dmub_cmd_header header; struct dmub_cmd_enable_disp_power_gating_data power_gating; }; struct dmub_cmd_dig1_transmitter_control_data { struct dig_transmitter_control_parameters_v1_6 dig; }; struct dmub_rb_cmd_dig1_transmitter_control { struct dmub_cmd_header header; struct dmub_cmd_dig1_transmitter_control_data transmitter_control; }; struct dmub_rb_cmd_dpphy_init { struct dmub_cmd_header header; uint8_t reserved[60]; }; /* * Command IDs should be treated as stable ABI. * Do not reuse or modify IDs. */ enum dmub_cmd_psr_type { DMUB_CMD__PSR_SET_VERSION = 0, DMUB_CMD__PSR_COPY_SETTINGS = 1, DMUB_CMD__PSR_ENABLE = 2, DMUB_CMD__PSR_DISABLE = 3, DMUB_CMD__PSR_SET_LEVEL = 4, }; enum psr_version { PSR_VERSION_1 = 0, PSR_VERSION_UNSUPPORTED = 0xFFFFFFFF, }; struct dmub_cmd_psr_copy_settings_data { union dmub_psr_debug_flags debug; uint16_t psr_level; uint8_t dpp_inst; uint8_t mpcc_inst; uint8_t opp_inst; uint8_t otg_inst; uint8_t digfe_inst; uint8_t digbe_inst; uint8_t dpphy_inst; uint8_t aux_inst; uint8_t smu_optimizations_en; uint8_t frame_delay; uint8_t frame_cap_ind; uint8_t pad[3]; uint16_t init_sdp_deadline; uint16_t pad2; }; struct dmub_rb_cmd_psr_copy_settings { struct dmub_cmd_header header; struct dmub_cmd_psr_copy_settings_data psr_copy_settings_data; }; struct dmub_cmd_psr_set_level_data { uint16_t psr_level; uint8_t pad[2]; }; struct dmub_rb_cmd_psr_set_level { struct dmub_cmd_header header; struct dmub_cmd_psr_set_level_data psr_set_level_data; }; struct dmub_rb_cmd_psr_enable { struct dmub_cmd_header header; }; struct dmub_cmd_psr_set_version_data { enum psr_version version; // PSR version 1 or 2 }; struct dmub_rb_cmd_psr_set_version { struct dmub_cmd_header header; struct dmub_cmd_psr_set_version_data psr_set_version_data; }; union dmub_hw_lock_flags { struct { uint8_t lock_pipe : 1; uint8_t lock_cursor : 1; uint8_t lock_dig : 1; uint8_t triple_buffer_lock : 1; } bits; uint8_t u8All; }; struct dmub_hw_lock_inst_flags { uint8_t otg_inst; uint8_t opp_inst; uint8_t dig_inst; uint8_t pad; }; enum hw_lock_client { HW_LOCK_CLIENT_DRIVER = 0, HW_LOCK_CLIENT_FW, HW_LOCK_CLIENT_INVALID = 0xFFFFFFFF, }; struct dmub_cmd_lock_hw_data { enum hw_lock_client client; struct dmub_hw_lock_inst_flags inst_flags; union dmub_hw_lock_flags hw_locks; uint8_t lock; uint8_t should_release; uint8_t pad; }; struct dmub_rb_cmd_lock_hw { struct dmub_cmd_header header; struct dmub_cmd_lock_hw_data lock_hw_data; }; enum dmub_cmd_abm_type { DMUB_CMD__ABM_INIT_CONFIG = 0, DMUB_CMD__ABM_SET_PIPE = 1, DMUB_CMD__ABM_SET_BACKLIGHT = 2, DMUB_CMD__ABM_SET_LEVEL = 3, DMUB_CMD__ABM_SET_AMBIENT_LEVEL = 4, DMUB_CMD__ABM_SET_PWM_FRAC = 5, }; #define NUM_AMBI_LEVEL 5 #define NUM_AGGR_LEVEL 4 #define NUM_POWER_FN_SEGS 8 #define NUM_BL_CURVE_SEGS 16 /* * Parameters for ABM2.4 algorithm. * Padded explicitly to 32-bit boundary. */ struct abm_config_table { /* Parameters for crgb conversion */ uint16_t crgb_thresh[NUM_POWER_FN_SEGS]; // 0B uint16_t crgb_offset[NUM_POWER_FN_SEGS]; // 15B uint16_t crgb_slope[NUM_POWER_FN_SEGS]; // 31B /* Parameters for custom curve */ uint16_t backlight_thresholds[NUM_BL_CURVE_SEGS]; // 47B uint16_t backlight_offsets[NUM_BL_CURVE_SEGS]; // 79B uint16_t ambient_thresholds_lux[NUM_AMBI_LEVEL]; // 111B uint16_t min_abm_backlight; // 121B uint8_t min_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; // 123B uint8_t max_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; // 143B uint8_t bright_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; // 163B uint8_t dark_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; // 183B uint8_t hybrid_factor[NUM_AGGR_LEVEL]; // 203B uint8_t contrast_factor[NUM_AGGR_LEVEL]; // 207B uint8_t deviation_gain[NUM_AGGR_LEVEL]; // 211B uint8_t min_knee[NUM_AGGR_LEVEL]; // 215B uint8_t max_knee[NUM_AGGR_LEVEL]; // 219B uint8_t iir_curve[NUM_AMBI_LEVEL]; // 223B uint8_t pad3[3]; // 228B }; struct dmub_cmd_abm_set_pipe_data { uint8_t otg_inst; uint8_t panel_inst; uint8_t set_pipe_option; uint8_t ramping_boundary; // TODO: Remove this }; struct dmub_rb_cmd_abm_set_pipe { struct dmub_cmd_header header; struct dmub_cmd_abm_set_pipe_data abm_set_pipe_data; }; struct dmub_cmd_abm_set_backlight_data { uint32_t frame_ramp; uint32_t backlight_user_level; }; struct dmub_rb_cmd_abm_set_backlight { struct dmub_cmd_header header; struct dmub_cmd_abm_set_backlight_data abm_set_backlight_data; }; struct dmub_cmd_abm_set_level_data { uint32_t level; }; struct dmub_rb_cmd_abm_set_level { struct dmub_cmd_header header; struct dmub_cmd_abm_set_level_data abm_set_level_data; }; struct dmub_cmd_abm_set_ambient_level_data { uint32_t ambient_lux; }; struct dmub_rb_cmd_abm_set_ambient_level { struct dmub_cmd_header header; struct dmub_cmd_abm_set_ambient_level_data abm_set_ambient_level_data; }; struct dmub_cmd_abm_set_pwm_frac_data { uint32_t fractional_pwm; }; struct dmub_rb_cmd_abm_set_pwm_frac { struct dmub_cmd_header header; struct dmub_cmd_abm_set_pwm_frac_data abm_set_pwm_frac_data; }; struct dmub_cmd_abm_init_config_data { union dmub_addr src; uint16_t bytes; }; struct dmub_rb_cmd_abm_init_config { struct dmub_cmd_header header; struct dmub_cmd_abm_init_config_data abm_init_config_data; }; union dmub_rb_cmd { struct dmub_rb_cmd_lock_hw lock_hw; struct dmub_rb_cmd_read_modify_write read_modify_write; struct dmub_rb_cmd_reg_field_update_sequence reg_field_update_seq; struct dmub_rb_cmd_burst_write burst_write; struct dmub_rb_cmd_reg_wait reg_wait; struct dmub_rb_cmd_common cmd_common; struct dmub_rb_cmd_digx_encoder_control digx_encoder_control; struct dmub_rb_cmd_set_pixel_clock set_pixel_clock; struct dmub_rb_cmd_enable_disp_power_gating enable_disp_power_gating; struct dmub_rb_cmd_dpphy_init dpphy_init; struct dmub_rb_cmd_dig1_transmitter_control dig1_transmitter_control; struct dmub_rb_cmd_psr_set_version psr_set_version; struct dmub_rb_cmd_psr_copy_settings psr_copy_settings; struct dmub_rb_cmd_psr_enable psr_enable; struct dmub_rb_cmd_psr_set_level psr_set_level; struct dmub_rb_cmd_PLAT_54186_wa PLAT_54186_wa; struct dmub_rb_cmd_abm_set_pipe abm_set_pipe; struct dmub_rb_cmd_abm_set_backlight abm_set_backlight; struct dmub_rb_cmd_abm_set_level abm_set_level; struct dmub_rb_cmd_abm_set_ambient_level abm_set_ambient_level; struct dmub_rb_cmd_abm_set_pwm_frac abm_set_pwm_frac; struct dmub_rb_cmd_abm_init_config abm_init_config; }; #pragma pack(pop) //============================================================================== //=================================================================== //============================================================================== //< DMUB_RB>==================================================================== //============================================================================== #if defined(__cplusplus) extern "C" { #endif struct dmub_rb_init_params { void *ctx; void *base_address; uint32_t capacity; uint32_t read_ptr; uint32_t write_ptr; }; struct dmub_rb { void *base_address; uint32_t data_count; uint32_t rptr; uint32_t wrpt; uint32_t capacity; void *ctx; void *dmub; }; static inline bool dmub_rb_empty(struct dmub_rb *rb) { return (rb->wrpt == rb->rptr); } static inline bool dmub_rb_full(struct dmub_rb *rb) { uint32_t data_count; if (rb->wrpt >= rb->rptr) data_count = rb->wrpt - rb->rptr; else data_count = rb->capacity - (rb->rptr - rb->wrpt); return (data_count == (rb->capacity - DMUB_RB_CMD_SIZE)); } static inline bool dmub_rb_push_front(struct dmub_rb *rb, const union dmub_rb_cmd *cmd) { uint64_t volatile *dst = (uint64_t volatile *)(rb->base_address) + rb->wrpt / sizeof(uint64_t); const uint64_t *src = (const uint64_t *)cmd; int i; if (dmub_rb_full(rb)) return false; // copying data for (i = 0; i < DMUB_RB_CMD_SIZE / sizeof(uint64_t); i++) *dst++ = *src++; rb->wrpt += DMUB_RB_CMD_SIZE; if (rb->wrpt >= rb->capacity) rb->wrpt %= rb->capacity; return true; } static inline bool dmub_rb_front(struct dmub_rb *rb, union dmub_rb_cmd *cmd) { uint8_t *rd_ptr = (uint8_t *)rb->base_address + rb->rptr; if (dmub_rb_empty(rb)) return false; dmub_memcpy(cmd, rd_ptr, DMUB_RB_CMD_SIZE); return true; } static inline bool dmub_rb_pop_front(struct dmub_rb *rb) { if (dmub_rb_empty(rb)) return false; rb->rptr += DMUB_RB_CMD_SIZE; if (rb->rptr >= rb->capacity) rb->rptr %= rb->capacity; return true; } static inline void dmub_rb_flush_pending(const struct dmub_rb *rb) { uint32_t rptr = rb->rptr; uint32_t wptr = rb->wrpt; while (rptr != wptr) { uint64_t volatile *data = (uint64_t volatile *)rb->base_address + rptr / sizeof(uint64_t); int i; for (i = 0; i < DMUB_RB_CMD_SIZE / sizeof(uint64_t); i++) *data++; rptr += DMUB_RB_CMD_SIZE; if (rptr >= rb->capacity) rptr %= rb->capacity; } } static inline void dmub_rb_init(struct dmub_rb *rb, struct dmub_rb_init_params *init_params) { rb->base_address = init_params->base_address; rb->capacity = init_params->capacity; rb->rptr = init_params->read_ptr; rb->wrpt = init_params->write_ptr; } #if defined(__cplusplus) } #endif //============================================================================== //==================================================================== //============================================================================== #endif /* _DMUB_CMD_H_ */