cpu.c File Reference

#include <console/console.h>
#include <cpu/cpu.h>
#include <cpu/x86/cr.h>
#include <cpu/x86/lapic.h>
#include <cpu/x86/mp.h>
#include <cpu/x86/msr.h>
#include <cpu/x86/mtrr.h>
#include <cpu/x86/smm.h>
#include <cpu/intel/smm_reloc.h>
#include <cpu/intel/em64t100_save_state.h>
#include <cpu/intel/turbo.h>
#include <cpu/intel/common/common.h>
#include <device/device.h>
#include <device/pci.h>
#include <intelblocks/cpulib.h>
#include <lib.h>
#include <soc/msr.h>
#include <soc/cpu.h>
#include <soc/iomap.h>
#include <soc/smm.h>
#include <soc/soc_util.h>
#include <types.h>

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Functions
bool	cpu_soc_is_in_untrusted_mode (void)
static void	dnv_configure_mca (void)
static void	configure_thermal_core (void)
static void	denverton_core_init (struct device *cpu)
static void	relocation_handler (int cpu, uintptr_t curr_smbase, uintptr_t staggered_smbase)
static void	get_smm_info (uintptr_t *perm_smbase, size_t *perm_smsize, size_t *smm_save_state_size)
static unsigned int	detect_num_cpus_via_cpuid (void)
static unsigned int	detect_num_cpus_via_mch (void)
int	get_cpu_count (void)
static void	set_max_turbo_freq (void)
static void	pre_mp_init (void)
static void	post_mp_init (void)
void	mp_init_cpus (struct bus *cpu_bus)

Variables
static struct smm_relocation_attrs	relo_attrs
static struct device_operations	cpu_dev_ops
static const struct cpu_device_id	cpu_table []
static const struct cpu_driver driver	__cpu_driver
static const struct mp_ops	mp_ops

Function Documentation

configure_thermal_core()

static void configure_thermal_core ( void  )

static

Definition at line 66 of file cpu.c.

References msr_struct::hi, IA32_MISC_ENABLE, IA32_PACKAGE_THERM_INTERRUPT, IA32_THERM_INTERRUPT, msr_struct::lo, rdmsr(), THERMAL_MONITOR_ENABLE_BIT, and wrmsr().

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cpu_soc_is_in_untrusted_mode()

bool cpu_soc_is_in_untrusted_mode

(

void

)

Definition at line 26 of file cpu.c.

References ENABLE_IA_UNTRUSTED, msr_struct::lo, MSR_POWER_MISC, and rdmsr().

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denverton_core_init()

static void denverton_core_init ( struct device *  cpu )

static

Definition at line 81 of file cpu.c.

detect_num_cpus_via_cpuid()

static unsigned int detect_num_cpus_via_cpuid ( void  )

static

Definition at line 174 of file cpu.c.

References cpuid_ext(), cpuid_result::ebx, and cpuid_result::ecx.

Referenced by get_cpu_count().

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detect_num_cpus_via_mch()

static unsigned int detect_num_cpus_via_mch ( void  )

static

Definition at line 191 of file cpu.c.

References BIOS_DEBUG, DEFAULT_MCHBAR, MCH_BAR_CORE_DISABLE_MASK, MCH_BAR_CORE_EXISTS_MASK, MMIO32, popcnt(), and printk.

Referenced by get_cpu_count().

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dnv_configure_mca()

static void dnv_configure_mca ( void  )

static

Definition at line 36 of file cpu.c.

References cpuid, CR4_MCE, cpuid_result::edx, msr_struct::hi, IA32_MCG_CAP, IA32_MCG_CAP_CTL_P_MASK, IA32_MCG_CTL, msr_struct::lo, mca_configure(), rdmsr(), read_cr4(), write_cr4(), and wrmsr().

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get_cpu_count()

int get_cpu_count

(

void

)

Definition at line 209 of file cpu.c.

References BIOS_DEBUG, detect_num_cpus_via_cpuid(), detect_num_cpus_via_mch(), and printk.

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get_smm_info()

static void get_smm_info ( uintptr_t *  perm_smbase, size_t *  perm_smsize, size_t *  smm_save_state_size  )

static

Definition at line 149 of file cpu.c.

References MTRR_PHYS_MASK_VALID, MTRR_TYPE_WRBACK, relo_attrs, smm_relocation_attrs::smbase, smm_region(), smm_subregion(), SMM_SUBREGION_HANDLER, smm_relocation_attrs::smrr_base, and smm_relocation_attrs::smrr_mask.

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mp_init_cpus()

void mp_init_cpus

(

struct bus *

cpu_bus

)

Definition at line 288 of file cpu.c.

References mp_init_with_smm().

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post_mp_init()

static void post_mp_init ( void  )

static

Definition at line 260 of file cpu.c.

pre_mp_init()

static void pre_mp_init ( void  )

static

Definition at line 254 of file cpu.c.

References x86_mtrr_check(), and x86_setup_mtrrs_with_detect().

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relocation_handler()

static void relocation_handler ( int  cpu, uintptr_t  curr_smbase, uintptr_t  staggered_smbase  )

static

Definition at line 131 of file cpu.c.

References msr_struct::hi, IA32_SMRR_PHYS_BASE, IA32_SMRR_PHYS_MASK, msr_struct::lo, relo_attrs, SMM_EM64T100_SAVE_STATE_OFFSET, smm_relocation_attrs::smrr_base, smm_relocation_attrs::smrr_mask, void(), and wrmsr().

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set_max_turbo_freq()

static void set_max_turbo_freq ( void  )

static

Definition at line 220 of file cpu.c.

References BIOS_DEBUG, CPU_BCLK, cpu_config_tdp_levels(), get_turbo_state(), msr_struct::hi, IA32_PERF_CTL, msr_struct::lo, MSR_CONFIG_TDP_NOMINAL, MSR_PLATFORM_INFO, MSR_TURBO_RATIO_LIMIT, printk, rdmsr(), TURBO_ENABLED, and wrmsr().

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Variable Documentation

__cpu_driver

const struct cpu_driver driver __cpu_driver

static

Initial value:

= {
        .ops = &cpu_dev_ops,
        .id_table = cpu_table,
}

Definition at line 81 of file cpu.c.

cpu_dev_ops

struct device_operations cpu_dev_ops

static

Initial value:

= {
        .init = denverton_core_init,
}

Definition at line 81 of file cpu.c.

cpu_table

const struct cpu_device_id cpu_table[]

static

Initial value:

= {
        {X86_VENDOR_INTEL,
         CPUID_DENVERTON_A0_A1},                
        {X86_VENDOR_INTEL, CPUID_DENVERTON_B0}, 
        {0, 0},
}

Definition at line 81 of file cpu.c.

mp_ops

const struct mp_ops mp_ops

static

Initial value:

= {
        .pre_mp_init = pre_mp_init,
        .get_cpu_count = get_cpu_count,
        .get_smm_info = get_smm_info,
        .pre_mp_smm_init = smm_southbridge_clear_state,
        .relocation_handler = relocation_handler,
        .post_mp_init = post_mp_init,
}

Definition at line 260 of file cpu.c.

relo_attrs

struct smm_relocation_attrs relo_attrs

static

Definition at line 26 of file cpu.c.

Referenced by get_smm_info(), and relocation_handler().