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ACPI CPU

include/acpi/cpu.h

struct `acpi_power_reg`

Member Type	Member Name
`uint8_t`	`descriptor`
`uint16_t`	`length`
`uint8_t`	`space_id`
`uint8_t`	`bit_width`
`uint8_t`	`bit_offset`
`uint8_t`	`access_size`
`uint64_t`	`addr`

struct `acpi_cpu_context`

Member Type	Member Name
`bool`	`valid`
`uint8_t`	`type`
`uint32_t`	`addr`
`uint8_t`	`entry_method`
`uint8_t`	`index`
`uint32_t`	`latency`
`uint8_t`	`bm_status_skip`
`char`	`desc[ACPI_CONTEXT_DESCRIPTOR_LENGTH]`

struct `acpi_lpi_state`

Member Type	Member Name
`uint32_t`	`min_residency`
`uint32_t`	`wake_latency`
`uint32_t`	`flags`
`uint32_t`	`resolution_counter_frequency`
`uint32_t`	`enable_parent_state`
`uint64_t`	`addr`
`uint8_t`	`index`
`uint8_t`	`entry_method`
`char`	`desc[ACPI_CONTEXT_DESCRIPTOR_LENGTH]`

struct `acpi_cpu_power`

Member Type	Member Name
`size_t`	`count`
`union { struct acpi_cpu_context states[ACPI_CPU_MAX_POWER]; struct acpi_lpi_state lpi_states[ACPI_CPU_MAX_POWER]; }`	`None`
`size_t`	`timer_broadcast_on_state`

struct `acpi_psd_pkg`

Member Type	Member Name
`uint64_t`	`num_entries`
`uint64_t`	`revision`
`uint64_t`	`domain`
`uint64_t`	`coord_type`
`uint64_t`	`num_cpus`

struct `acpi_pct_reg`

Member Type	Member Name
`uint8_t`	`desc`
`uint16_t`	`len`
`uint8_t`	`space_id`
`uint8_t`	`bit_width`
`uint8_t`	`bit_offset`
`uint8_t`	`reserved0`
`uint64_t`	`addr`

struct `acpi_cpu_px`

Member Type	Member Name
`uint64_t`	`frequency`
`uint64_t`	`power`
`uint64_t`	`transition_latency_us`
`uint64_t`	`bus_master_latency_us`
`uint64_t`	`control`
`uint64_t`	`status`

struct `acpi_cpu_perf`

Member Type	Member Name
`uint32_t`	`state`
`uint32_t`	`platform_limit`
`struct acpi_pct_reg`	`control_reg`
`struct acpi_pct_reg`	`status_reg`
`uint32_t`	`state_count`
`struct acpi_cpu_px`	`*states`
`struct acpi_psd_pkg`	`domain_info`
`uint32_t`	`type`

struct `acpi_tsd_pkg`

Member Type	Member Name
`uint64_t`	`num_entries`
`uint64_t`	`revision`
`uint64_t`	`domain`
`uint64_t`	`coord_type`
`uint64_t`	`num_cpus`

struct `acpi_ptc_reg`

Member Type	Member Name
`uint8_t`	`desc`
`uint16_t`	`len`
`uint8_t`	`space_id`
`uint8_t`	`bit_width`
`uint8_t`	`bit_offset`
`uint8_t`	`reserved0`
`uint64_t`	`addr`

struct `acpi_cpu_tx_tss`

Member Type	Member Name
`uint64_t`	`freq_pct`
`uint64_t`	`power`
`uint64_t`	`transition_latency_us`
`uint64_t`	`control`
`uint64_t`	`status`

struct `acpi_cpu_tx`

Member Type	Member Name
`uint16_t`	`power`
`uint16_t`	`performance`

struct `acpi_cpu_throttling`

Member Type	Member Name
`uint32_t`	`state`
`uint32_t`	`platform_limit`
`struct acpi_pct_reg`	`control_reg`
`struct acpi_pct_reg`	`status_reg`
`uint32_t`	`state_count`
`struct acpi_cpu_tx_tss`	`*states_tss`
`struct acpi_tsd_pkg`	`domain_info`
`int32_t`	`(get_throttling)(struct acpi_cpu )`
`int32_t`	`(set_throttling)(struct acpi_cpu , int32_t)`
`uint32_t`	`addr`
`uint8_t`	`duty_offset`
`uint8_t`	`duty_width`
`uint8_t`	`tsd_valid_flag`
`uint32_t`	`shared_type`
`struct acpi_cpu_tx`	`states[ACPI_CPU_MAX_THROTTLING]`

struct `acpi_cpu_lx`

Member Type	Member Name
`int32_t`	`px`
`int32_t`	`tx`

struct `acpi_cpu_limit`

Member Type	Member Name
`struct acpi_cpu_lx`	`state`
`struct acpi_cpu_lx`	`thermal`
`struct acpi_cpu_lx`	`user`

struct `acpi_cpu_flags`

Member Type	Member Name
`uint8_t`	`power`
`uint8_t`	`perf`
`uint8_t`	`throttling`
`uint8_t`	`limit`
`uint8_t`	`has_cst`
`uint8_t`	`has_lpi`
`uint8_t`	`setup`

struct `acpi_cpu`

Member Type	Member Name
`cpu_id_t`	`id`
`int32_t`	`perf_throttle_limit`
`int32_t`	`throttle_platform_limit`
`struct acpi_cpu_flags`	`flags`
`struct acpi_cpu_power`	`power`
`struct acpi_cpu_perf`	`*performance`
`struct acpi_cpu_throttling`	`throttling`
`struct acpi_cpu_limit`	`limit`

Defines

ACPI_CPU_BUSY_METRIC: 10
ACPI_CPU_MAX_POWER: 8
ACPI_CPU_MAX_C2_LATENCY: 100
ACPI_CPU_MAX_C3_LATENCY: 1000
ACPI_CPU_MAX_THROTTLING: 16
ACPI_CPU_MAX_THROTTLE: 100 /* 10% */
ACPI_CPU_MAX_DUTY_WIDTH: 4
ACPI_PDC_REVISION_ID: 0x1
ACPI_PSD_REV0_REVISION: 0
ACPI_PSD_REV0_ENTRIES: 5
ACPI_TSD_REV0_REVISION: 0
ACPI_TSD_REV0_ENTRIES: 5
ACPI_CONTEXT_DESCRIPTOR_LENGTH: 32