coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
Typedefs | Functions | Variables
smihandler.c File Reference
#include <arch/hlt.h>
#include <arch/io.h>
#include <device/mmio.h>
#include <device/pci_ops.h>
#include <console/console.h>
#include <cpu/x86/cache.h>
#include <cpu/x86/smm.h>
#include <cpu/intel/em64t100_save_state.h>
#include <device/pci_def.h>
#include <elog.h>
#include <soc/nvs.h>
#include <soc/pci_devs.h>
#include <soc/pm.h>
#include <spi-generic.h>
#include <stdint.h>
#include <soc/gpio.h>
#include <smmstore.h>
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Typedefs

typedef void(* smi_handler_t) (void)
 

Functions

int southbridge_io_trap_handler (int smif)
 
void southbridge_smi_set_eos (void)
 
static void busmaster_disable_on_bus (int bus)
 
static void tristate_gpios (uint32_t val)
 
static void southbridge_smi_sleep (void)
 
static em64t100_smm_state_save_area_t * smi_apmc_find_state_save (uint8_t cmd)
 
static void southbridge_smi_gsmi (void)
 
static void southbridge_smi_store (void)
 
static void southbridge_smi_apmc (void)
 
static void southbridge_smi_pm1 (void)
 
static void southbridge_smi_gpe0 (void)
 
static void southbridge_smi_tco (void)
 
static void southbridge_smi_periodic (void)
 
void southbridge_smi_handler (void)
 

Variables

static const smi_handler_t southbridge_smi [32]
 

Typedef Documentation

◆ smi_handler_t

typedef void(* smi_handler_t) (void)

Definition at line 329 of file smihandler.c.

Function Documentation

◆ busmaster_disable_on_bus()

static void busmaster_disable_on_bus ( int  bus)
static

Definition at line 44 of file smihandler.c.

References PCI_COMMAND, PCI_COMMAND_MASTER, PCI_DEV, PCI_HEADER_TYPE, PCI_HEADER_TYPE_BRIDGE, PCI_HEADER_TYPE_CARDBUS, PCI_PRIMARY_BUS, pci_read_config16(), pci_read_config32(), pci_read_config8(), PCI_VENDOR_ID, pci_write_config16(), and val.

Referenced by southbridge_smi_sleep().

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◆ smi_apmc_find_state_save()

static em64t100_smm_state_save_area_t* smi_apmc_find_state_save ( uint8_t  cmd)
static

Definition at line 189 of file smihandler.c.

References APM_CNT, NULL, and smm_get_save_state().

Referenced by southbridge_smi_gsmi(), and southbridge_smi_store().

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◆ southbridge_io_trap_handler()

int southbridge_io_trap_handler ( int  smif)

Definition at line 21 of file smihandler.c.

References BIOS_DEBUG, gnvs, printk, and global_nvs::smif.

◆ southbridge_smi_apmc()

static void southbridge_smi_apmc ( void  )
static

Definition at line 259 of file smihandler.c.

References APM_CNT_ACPI_DISABLE, APM_CNT_ACPI_ENABLE, APM_CNT_ELOG_GSMI, APM_CNT_SMMSTORE, apm_get_apmc(), CONFIG, disable_pm1_control(), enable_pm1_control(), mainboard_smi_apmc(), SCI_EN, southbridge_smi_gsmi(), and southbridge_smi_store().

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◆ southbridge_smi_gpe0()

static void southbridge_smi_gpe0 ( void  )
static

Definition at line 297 of file smihandler.c.

References clear_gpe_status().

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◆ southbridge_smi_gsmi()

static void southbridge_smi_gsmi ( void  )
static

Definition at line 220 of file smihandler.c.

References APM_CNT_ELOG_GSMI, gsmi_exec(), and smi_apmc_find_state_save().

Referenced by southbridge_smi_apmc().

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◆ southbridge_smi_handler()

void southbridge_smi_handler ( void  )

Definition at line 366 of file smihandler.c.

References ARRAY_SIZE, BIOS_DEBUG, clear_alt_status(), clear_smi_status(), mainboard_smi_gpi(), NULL, printk, and southbridge_smi.

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◆ southbridge_smi_periodic()

static void southbridge_smi_periodic ( void  )
static

Definition at line 316 of file smihandler.c.

References BIOS_DEBUG, get_pmbase(), inl(), PERIODIC_EN, printk, and SMI_EN.

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◆ southbridge_smi_pm1()

static void southbridge_smi_pm1 ( void  )
static

Definition at line 284 of file smihandler.c.

References clear_pm1_status(), disable_pm1_control(), elog_gsmi_add_event(), ELOG_TYPE_POWER_BUTTON, enable_pm1_control(), PWRBTN_STS, SLP_EN, SLP_TYP_S5, and SLP_TYP_SHIFT.

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◆ southbridge_smi_set_eos()

void southbridge_smi_set_eos ( void  )

Definition at line 39 of file smihandler.c.

References enable_smi(), and EOS.

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◆ southbridge_smi_sleep()

static void southbridge_smi_sleep ( void  )
static

Definition at line 101 of file smihandler.c.

References ACPI_S0, ACPI_S1, ACPI_S3, ACPI_S4, ACPI_S5, BIOS_DEBUG, BIOS_SPEW, busmaster_disable_on_bus(), clear_gpe_status(), disable_all_gpe(), disable_pm1_control(), disable_smi(), elog_gsmi_add_event_byte(), ELOG_TYPE_ACPI_ENTER, enable_pm1_control(), get_pmbase(), hlt(), inl(), mainboard_smi_sleep(), PAD_CONTROL_REG0_TRISTATE, PM1_CNT, pmbase, printk, read32(), SCI_EN, SLP_EN, SLP_SMI_EN, SLP_TYP, tristate_gpios(), wbinvd(), and write32().

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◆ southbridge_smi_store()

static void southbridge_smi_store ( void  )
static

Definition at line 240 of file smihandler.c.

References APM_CNT_SMMSTORE, smi_apmc_find_state_save(), and smmstore_exec().

Referenced by southbridge_smi_apmc().

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◆ southbridge_smi_tco()

static void southbridge_smi_tco ( void  )
static

Definition at line 302 of file smihandler.c.

References BIOS_DEBUG, clear_tco_status(), printk, and TCO_TIMEOUT.

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◆ tristate_gpios()

static void tristate_gpios ( uint32_t  val)
static

Definition at line 78 of file smihandler.c.

References CFIO_139_MMIO_OFFSET, CFIO_140_MMIO_OFFSET, COMMUNITY_GPNORTH_BASE, COMMUNITY_GPSOUTHEAST_BASE, COMMUNITY_GPSOUTHWEST_BASE, HV_DDI2_DDC_SCL_MMIO_OFFSET, HV_DDI2_DDC_SDA_MMIO_OFFSET, MMC1_D4_SD_WE_MMIO_OFFSET, MMC1_D5_MMIO_OFFSET, MMC1_D6_MMIO_OFFSET, MMC1_D7_MMIO_OFFSET, MMC1_RCLK_OFFSET, SDMMC1_CMD_MMIO_OFFSET, SDMMC1_D0_MMIO_OFFSET, SDMMC1_D1_MMIO_OFFSET, SDMMC1_D2_MMIO_OFFSET, SDMMC1_D3_MMIO_OFFSET, val, and write32().

Referenced by southbridge_smi_sleep().

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Variable Documentation

◆ southbridge_smi

const smi_handler_t southbridge_smi[32]
static

Definition at line 331 of file smihandler.c.