acpi.c File Reference

#include <console/console.h>
#include <acpi/acpi.h>
#include <acpi/acpigen.h>
#include <arch/cpu.h>
#include <cpu/x86/msr.h>
#include <cpu/intel/speedstep.h>
#include <cpu/intel/turbo.h>
#include <device/device.h>
#include <stdint.h>
#include "model_206ax.h"
#include "chip.h"

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Functions
static int	get_logical_cores_per_package (void)
static void	generate_C_state_entries (void)
static void	generate_T_state_entries (int core, int cores_per_package)
static int	calculate_power (int tdp, int p1_ratio, int ratio)
static void	generate_P_state_entries (int core, int cores_per_package)
void	generate_cpu_entries (const struct device *device)

Variables
static const acpi_cstate_t	cstate_map []
static acpi_tstate_t	tss_table_fine []
static acpi_tstate_t	tss_table_coarse []
struct chip_operations	cpu_intel_model_206ax_ops

Function Documentation

calculate_power()

static int calculate_power ( int  tdp, int  p1_ratio, int  ratio  )

static

Definition at line 180 of file acpi.c.

References m, and power.

Referenced by generate_P_state_entries().

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generate_C_state_entries()

static void generate_C_state_entries ( void  )

static

Definition at line 98 of file acpi.c.

References cpu_intel_model_206ax_config::acpi_c1, cpu_intel_model_206ax_config::acpi_c2, cpu_intel_model_206ax_config::acpi_c3, acpigen_write_CST_package(), ARRAY_SIZE, device::chip_info, count, cstate_map, acpi_cstate::ctype, dev_find_lapic(), NULL, and SPEEDSTEP_APIC_MAGIC.

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generate_cpu_entries()

void generate_cpu_entries

(

const struct device *

device

)

Definition at line 307 of file acpi.c.

generate_P_state_entries()

static void generate_P_state_entries ( int  core, int  cores_per_package  )

static

Definition at line 201 of file acpi.c.

References acpigen_pop_len(), acpigen_write_empty_PCT(), acpigen_write_name(), acpigen_write_package(), acpigen_write_PPC_NVS(), acpigen_write_PSD_package(), acpigen_write_PSS_package(), calculate_power(), cpu_config_tdp_levels(), get_turbo_state(), msr_struct::hi, HW_ALL, msr_struct::lo, MISC_PWR_MGMT_EIST_HW_DIS, MSR_CONFIG_TDP_NOMINAL, MSR_MISC_PWR_MGMT, MSR_PKG_POWER_SKU, MSR_PKG_POWER_SKU_UNIT, MSR_PLATFORM_INFO, MSR_TURBO_RATIO_LIMIT, power, PSS_LATENCY_BUSMASTER, PSS_LATENCY_TRANSITION, PSS_MAX_ENTRIES, PSS_RATIO_STEP, rdmsr(), SANDYBRIDGE_BCLK, SW_ANY, and TURBO_ENABLED.

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generate_T_state_entries()

static void generate_T_state_entries ( int  core, int  cores_per_package  )

static

Definition at line 157 of file acpi.c.

References acpigen_write_empty_PTC(), acpigen_write_TPC(), acpigen_write_TSD_package(), acpigen_write_TSS_package(), ARRAY_SIZE, cpuid_eax(), SW_ALL, tss_table_coarse, and tss_table_fine.

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get_logical_cores_per_package()

static int get_logical_cores_per_package ( void  )

static

Definition at line 92 of file acpi.c.

References msr_struct::lo, MSR_CORE_THREAD_COUNT, and rdmsr().

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Variable Documentation

cpu_intel_model_206ax_ops

struct chip_operations cpu_intel_model_206ax_ops

Initial value:

= {
 
}

Definition at line 307 of file acpi.c.

cstate_map

const acpi_cstate_t cstate_map[]

static

Definition at line 22 of file acpi.c.

Referenced by generate_C_state_entries().

tss_table_coarse

acpi_tstate_t tss_table_coarse[]

static

Initial value:

= {
        { 100, 1000, 0, 0x00, 0 },
        { 88, 875, 0, 0x1f, 0 },
        { 75, 750, 0, 0x1e, 0 },
        { 63, 625, 0, 0x1d, 0 },
        { 50, 500, 0, 0x1c, 0 },
        { 38, 375, 0, 0x1b, 0 },
        { 25, 250, 0, 0x1a, 0 },
        { 13, 125, 0, 0x19, 0 },
}

Definition at line 146 of file acpi.c.

Referenced by generate_T_state_entries().

tss_table_fine

acpi_tstate_t tss_table_fine[]

static

Initial value:

= {
        { 100, 1000, 0, 0x00, 0 },
        { 94, 940, 0, 0x1f, 0 },
        { 88, 880, 0, 0x1e, 0 },
        { 82, 820, 0, 0x1d, 0 },
        { 75, 760, 0, 0x1c, 0 },
        { 69, 700, 0, 0x1b, 0 },
        { 63, 640, 0, 0x1a, 0 },
        { 57, 580, 0, 0x19, 0 },
        { 50, 520, 0, 0x18, 0 },
        { 44, 460, 0, 0x17, 0 },
        { 38, 400, 0, 0x16, 0 },
        { 32, 340, 0, 0x15, 0 },
        { 25, 280, 0, 0x14, 0 },
        { 19, 220, 0, 0x13, 0 },
        { 13, 160, 0, 0x12, 0 },
}

Definition at line 128 of file acpi.c.

Referenced by generate_T_state_entries().