cse.c File Reference

#include <assert.h>
#include <commonlib/helpers.h>
#include <console/console.h>
#include <device/mmio.h>
#include <delay.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <intelblocks/cse.h>
#include <intelblocks/pmclib.h>
#include <option.h>
#include <security/vboot/misc.h>
#include <security/vboot/vboot_common.h>
#include <soc/intel/common/reset.h>
#include <soc/iomap.h>
#include <soc/pci_devs.h>
#include <soc/me.h>
#include <string.h>
#include <timer.h>
#include <types.h>

Include dependency graph for cse.c:

Go to the source code of this file.

Macros
#define	__SIMPLE_DEVICE__
#define	MAX_HECI_MESSAGE_RETRY_COUNT   5
#define	HECI_DELAY_READY_MS   (15 * 1000)
#define	HECI_DELAY_US   100
#define	HECI_SEND_TIMEOUT_MS   (5 * 1000)
#define	HECI_READ_TIMEOUT_MS   (5 * 1000)
#define	HECI_CIP_TIMEOUT_US   1000
#define	CSE_DELAY_BOOT_TO_RO_MS   (5 * 1000)
#define	SLOT_SIZE   sizeof(uint32_t)
#define	MMIO_CSE_CB_WW   0x00
#define	MMIO_HOST_CSR   0x04
#define	MMIO_CSE_CB_RW   0x08
#define	MMIO_CSE_CSR   0x0c
#define	MMIO_CSE_DEVIDLE   0x800
#define	CSE_DEV_IDLE   (1 << 2)
#define	CSE_DEV_CIP   (1 << 0)
#define	CSR_IE   (1 << 0)
#define	CSR_IS   (1 << 1)
#define	CSR_IG   (1 << 2)
#define	CSR_READY   (1 << 3)
#define	CSR_RESET   (1 << 4)
#define	CSR_RP_START   8
#define	CSR_RP   (((1 << 8) - 1) << CSR_RP_START)
#define	CSR_WP_START   16
#define	CSR_WP   (((1 << 8) - 1) << CSR_WP_START)
#define	CSR_CBD_START   24
#define	CSR_CBD   (((1 << 8) - 1) << CSR_CBD_START)
#define	MEI_HDR_IS_COMPLETE   (1 << 31)
#define	MEI_HDR_LENGTH_START   16
#define	MEI_HDR_LENGTH_SIZE   9
#define	MEI_HDR_LENGTH
#define	MEI_HDR_HOST_ADDR_START   8
#define	MEI_HDR_HOST_ADDR   (((1 << 8) - 1) << MEI_HDR_HOST_ADDR_START)
#define	MEI_HDR_CSE_ADDR_START   0
#define	MEI_HDR_CSE_ADDR   (((1 << 8) - 1) << MEI_HDR_CSE_ADDR_START)

Functions
static uintptr_t	get_cse_bar (pci_devfn_t dev)
void	heci_init (uintptr_t tempbar)
static uint32_t	read_bar (pci_devfn_t dev, uint32_t offset)
static void	write_bar (pci_devfn_t dev, uint32_t offset, uint32_t val)
static uint32_t	read_cse_csr (void)
static uint32_t	read_host_csr (void)
static void	write_host_csr (uint32_t data)
static size_t	filled_slots (uint32_t data)
static size_t	cse_filled_slots (void)
static size_t	host_empty_slots (void)
static void	clear_int (void)
static uint32_t	read_slot (void)
static void	write_slot (uint32_t val)
static int	wait_write_slots (size_t cnt)
static int	wait_read_slots (size_t cnt)
static size_t	bytes_to_slots (size_t bytes)
static int	cse_ready (void)
static bool	cse_check_hfs1_com (int mode)
bool	cse_is_hfs1_cws_normal (void)
bool	cse_is_hfs1_com_normal (void)
bool	cse_is_hfs1_com_secover_mei_msg (void)
bool	cse_is_hfs1_com_soft_temp_disable (void)
bool	cse_is_hfs1_spi_protected (void)
bool	cse_is_hfs3_fw_sku_lite (void)
void	cse_set_host_ready (void)
uint8_t	cse_wait_sec_override_mode (void)
uint8_t	cse_wait_com_soft_temp_disable (void)
static int	wait_heci_ready (void)
static void	host_gen_interrupt (void)
static size_t	hdr_get_length (uint32_t hdr)
static int	send_one_message (uint32_t hdr, const void *buff)
static enum cse_tx_rx_status	heci_send (const void *msg, size_t len, uint8_t host_addr, uint8_t client_addr)
static enum cse_tx_rx_status	recv_one_message (uint32_t *hdr, void *buff, size_t maxlen, size_t *recv_len)
static enum cse_tx_rx_status	heci_receive (void *buff, size_t *maxlen)
enum cse_tx_rx_status	heci_send_receive (const void *snd_msg, size_t snd_sz, void *rcv_msg, size_t *rcv_sz, uint8_t cse_addr)
int	heci_reset (void)
bool	is_cse_devfn_visible (unsigned int devfn)
bool	is_cse_enabled (void)
uint32_t	me_read_config32 (int offset)
static bool	cse_is_global_reset_allowed (void)
static int	cse_request_reset (enum rst_req_type rst_type)
int	cse_request_global_reset (void)
static bool	cse_is_hmrfpo_enable_allowed (void)
int	cse_hmrfpo_enable (void)
int	cse_hmrfpo_get_status (void)
void	print_me_fw_version (void *unused)
enum cb_err	get_me_fw_version (struct me_fw_ver_resp *resp)
void	cse_trigger_vboot_recovery (enum csme_failure_reason reason)
static bool	disable_cse_idle (pci_devfn_t dev)
static void	enable_cse_idle (pci_devfn_t dev)
enum cse_device_state	get_cse_device_state (unsigned int devfn)
static enum cse_device_state	ensure_cse_active (pci_devfn_t dev)
static void	ensure_cse_idle (pci_devfn_t dev)
bool	set_cse_device_state (unsigned int devfn, enum cse_device_state requested_state)
void	cse_set_to_d0i3 (void)
void	heci_set_to_d0i3 (void)
void	cse_control_global_reset_lock (void)

Macro Definition Documentation

__SIMPLE_DEVICE__

#define __SIMPLE_DEVICE__

Definition at line 3 of file cse.c.

CSE_DELAY_BOOT_TO_RO_MS

#define CSE_DELAY_BOOT_TO_RO_MS   (5 * 1000)

Definition at line 39 of file cse.c.

CSE_DEV_CIP

#define CSE_DEV_CIP   (1 << 0)

Definition at line 49 of file cse.c.

CSE_DEV_IDLE

#define CSE_DEV_IDLE   (1 << 2)

Definition at line 48 of file cse.c.

CSR_CBD

#define CSR_CBD   (((1 << 8) - 1) << CSR_CBD_START)

Definition at line 61 of file cse.c.

CSR_CBD_START

#define CSR_CBD_START   24

Definition at line 60 of file cse.c.

CSR_IE

#define CSR_IE   (1 << 0)

Definition at line 51 of file cse.c.

CSR_IG

#define CSR_IG   (1 << 2)

Definition at line 53 of file cse.c.

CSR_IS

#define CSR_IS   (1 << 1)

Definition at line 52 of file cse.c.

CSR_READY

#define CSR_READY   (1 << 3)

Definition at line 54 of file cse.c.

CSR_RESET

#define CSR_RESET   (1 << 4)

Definition at line 55 of file cse.c.

CSR_RP

#define CSR_RP   (((1 << 8) - 1) << CSR_RP_START)

Definition at line 57 of file cse.c.

CSR_RP_START

#define CSR_RP_START   8

Definition at line 56 of file cse.c.

CSR_WP

#define CSR_WP   (((1 << 8) - 1) << CSR_WP_START)

Definition at line 59 of file cse.c.

CSR_WP_START

#define CSR_WP_START   16

Definition at line 58 of file cse.c.

HECI_CIP_TIMEOUT_US

#define HECI_CIP_TIMEOUT_US   1000

Definition at line 37 of file cse.c.

HECI_DELAY_READY_MS

#define HECI_DELAY_READY_MS   (15 * 1000)

Definition at line 29 of file cse.c.

HECI_DELAY_US

#define HECI_DELAY_US   100

Definition at line 31 of file cse.c.

HECI_READ_TIMEOUT_MS

#define HECI_READ_TIMEOUT_MS   (5 * 1000)

Definition at line 35 of file cse.c.

HECI_SEND_TIMEOUT_MS

#define HECI_SEND_TIMEOUT_MS   (5 * 1000)

Definition at line 33 of file cse.c.

MAX_HECI_MESSAGE_RETRY_COUNT

#define MAX_HECI_MESSAGE_RETRY_COUNT   5

Definition at line 26 of file cse.c.

MEI_HDR_CSE_ADDR

#define MEI_HDR_CSE_ADDR   (((1 << 8) - 1) << MEI_HDR_CSE_ADDR_START)

Definition at line 71 of file cse.c.

MEI_HDR_CSE_ADDR_START

#define MEI_HDR_CSE_ADDR_START   0

Definition at line 70 of file cse.c.

MEI_HDR_HOST_ADDR

#define MEI_HDR_HOST_ADDR   (((1 << 8) - 1) << MEI_HDR_HOST_ADDR_START)

Definition at line 69 of file cse.c.

MEI_HDR_HOST_ADDR_START

#define MEI_HDR_HOST_ADDR_START   8

Definition at line 68 of file cse.c.

MEI_HDR_IS_COMPLETE

#define MEI_HDR_IS_COMPLETE   (1 << 31)

Definition at line 63 of file cse.c.

MEI_HDR_LENGTH

#define MEI_HDR_LENGTH

Value:

                                        (((1 << MEI_HDR_LENGTH_SIZE) - 1) \
                                        << MEI_HDR_LENGTH_START)

Definition at line 66 of file cse.c.

MEI_HDR_LENGTH_SIZE

#define MEI_HDR_LENGTH_SIZE   9

Definition at line 65 of file cse.c.

MEI_HDR_LENGTH_START

#define MEI_HDR_LENGTH_START   16

Definition at line 64 of file cse.c.

MMIO_CSE_CB_RW

#define MMIO_CSE_CB_RW   0x08

Definition at line 45 of file cse.c.

MMIO_CSE_CB_WW

#define MMIO_CSE_CB_WW   0x00

Definition at line 43 of file cse.c.

MMIO_CSE_CSR

#define MMIO_CSE_CSR   0x0c

Definition at line 46 of file cse.c.

MMIO_CSE_DEVIDLE

#define MMIO_CSE_DEVIDLE   0x800

Definition at line 47 of file cse.c.

MMIO_HOST_CSR

#define MMIO_HOST_CSR   0x04

Definition at line 44 of file cse.c.

SLOT_SIZE

#define SLOT_SIZE   sizeof(uint32_t)

Definition at line 41 of file cse.c.

Function Documentation

bytes_to_slots()

static size_t bytes_to_slots ( size_t  bytes )

static

Definition at line 222 of file cse.c.

References ALIGN_UP, and SLOT_SIZE.

Referenced by heci_receive().

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clear_int()

static void clear_int ( void  )

static

Definition at line 173 of file cse.c.

References CSR_IS, read_host_csr(), and write_host_csr().

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cse_check_hfs1_com()

static bool cse_check_hfs1_com ( int  mode )

static

Definition at line 234 of file cse.c.

References me_hfsts1::data, me_hfsts1::fields, me_read_config32(), me_hfsts1::operation_mode, and PCI_ME_HFSTS1.

Referenced by cse_is_hfs1_com_normal(), cse_is_hfs1_com_secover_mei_msg(), and cse_is_hfs1_com_soft_temp_disable().

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cse_control_global_reset_lock()

void cse_control_global_reset_lock

(

void

)

Definition at line 1023 of file cse.c.

References CONFIG, cse_is_hfs1_spi_protected(), pmc_global_reset_disable_and_lock(), and pmc_global_reset_enable().

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cse_filled_slots()

static size_t cse_filled_slots ( void  )

static

Definition at line 160 of file cse.c.

References filled_slots(), and read_cse_csr().

Referenced by wait_read_slots().

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cse_hmrfpo_enable()

int cse_hmrfpo_enable

(

void

)

Definition at line 748 of file cse.c.

References __packed, BIOS_DEBUG, BIOS_ERR, cse_is_hfs1_com_secover_mei_msg(), cse_is_hmrfpo_enable_allowed(), HECI_MKHI_ADDR, heci_send_receive(), MKHI_GROUP_ID_HMRFPO, MKHI_HMRFPO_ENABLE, and printk.

Referenced by cse_prep_for_component_update(), and cse_prep_for_rw_update().

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cse_hmrfpo_get_status()

int cse_hmrfpo_get_status

(

void

)

Definition at line 812 of file cse.c.

References __packed, BIOS_ERR, BIOS_INFO, cse_is_hfs1_cws_normal(), HECI_MKHI_ADDR, heci_send_receive(), MKHI_GROUP_ID_HMRFPO, MKHI_HMRFPO_GET_STATUS, and printk.

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cse_is_global_reset_allowed()

static bool cse_is_global_reset_allowed ( void  )

static

Definition at line 650 of file cse.c.

References cse_is_hfs1_com_normal(), cse_is_hfs1_com_secover_mei_msg(), cse_is_hfs1_com_soft_temp_disable(), cse_is_hfs1_cws_normal(), and cse_is_hfs3_fw_sku_lite().

Referenced by cse_request_reset().

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cse_is_hfs1_com_normal()

bool cse_is_hfs1_com_normal

(

void

)

Definition at line 250 of file cse.c.

References cse_check_hfs1_com(), and ME_HFS1_COM_NORMAL.

Referenced by cse_is_bp_cmd_info_possible(), cse_is_global_reset_allowed(), cse_is_hmrfpo_enable_allowed(), and platform_fsp_silicon_init_params_cb().

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cse_is_hfs1_com_secover_mei_msg()

bool cse_is_hfs1_com_secover_mei_msg

(

void

)

Definition at line 255 of file cse.c.

References cse_check_hfs1_com(), and ME_HFS1_COM_SECOVER_MEI_MSG.

Referenced by cse_hmrfpo_enable(), cse_is_bp_cmd_info_possible(), cse_is_global_reset_allowed(), and cse_wait_sec_override_mode().

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cse_is_hfs1_com_soft_temp_disable()

bool cse_is_hfs1_com_soft_temp_disable

(

void

)

Definition at line 260 of file cse.c.

References cse_check_hfs1_com(), and ME_HFS1_COM_SOFT_TEMP_DISABLE.

Referenced by cse_data_clear_request(), cse_is_bp_cmd_info_possible(), cse_is_global_reset_allowed(), cse_is_hmrfpo_enable_allowed(), and cse_wait_com_soft_temp_disable().

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cse_is_hfs1_cws_normal()

bool cse_is_hfs1_cws_normal

(

void

)

Definition at line 241 of file cse.c.

References me_hfsts1::data, me_hfsts1::fields, ME_HFS1_CWS_NORMAL, me_read_config32(), PCI_ME_HFSTS1, and me_hfsts1::working_state.

Referenced by cse_data_clear_request(), cse_hmrfpo_get_status(), cse_is_bp_cmd_info_possible(), cse_is_global_reset_allowed(), and cse_is_hmrfpo_enable_allowed().

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cse_is_hfs1_spi_protected()

bool cse_is_hfs1_spi_protected

(

void

)

Definition at line 274 of file cse.c.

References me_hfsts1::data, me_hfsts1::fields, me_read_config32(), me_hfsts1::mfg_mode, and PCI_ME_HFSTS1.

Referenced by cse_control_global_reset_lock().

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cse_is_hfs3_fw_sku_lite()

bool cse_is_hfs3_fw_sku_lite

(

void

)

Definition at line 281 of file cse.c.

References me_hfsts3::data, me_hfsts3::fields, me_hfsts3::fw_sku, ME_HFS3_FW_SKU_LITE, me_read_config32(), and PCI_ME_HFSTS3.

Referenced by cse_is_global_reset_allowed(), cse_is_hmrfpo_enable_allowed(), and platform_fsp_silicon_init_params_cb().

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cse_is_hmrfpo_enable_allowed()

static bool cse_is_hmrfpo_enable_allowed ( void  )

static

Definition at line 727 of file cse.c.

References cse_is_hfs1_com_normal(), cse_is_hfs1_com_soft_temp_disable(), cse_is_hfs1_cws_normal(), and cse_is_hfs3_fw_sku_lite().

Referenced by cse_hmrfpo_enable().

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cse_ready()

static int cse_ready ( void  )

static

Definition at line 227 of file cse.c.

References CSR_READY, and read_cse_csr().

Referenced by heci_receive(), and wait_heci_ready().

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cse_request_global_reset()

int cse_request_global_reset

(

void

)

Definition at line 722 of file cse.c.

References cse_request_reset(), and GLOBAL_RESET.

Referenced by do_global_reset(), and send_global_reset().

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cse_request_reset()

static int cse_request_reset ( enum rst_req_type  rst_type )

static

Definition at line 676 of file cse.c.

References __packed, BIOS_DEBUG, BIOS_ERR, BIOS_HOST_ADDR, cse_is_global_reset_allowed(), CSE_RESET_ONLY, GLOBAL_RESET, GR_ORIGIN_BIOS_POST, HECI_MKHI_ADDR, heci_reset(), heci_send(), heci_send_receive(), is_cse_enabled(), memset(), MKHI_CBM_GLOBAL_RESET_REQ, MKHI_GROUP_ID_CBM, and printk.

Referenced by cse_request_global_reset().

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cse_set_host_ready()

void cse_set_host_ready

(

void

)

Definition at line 289 of file cse.c.

References CSR_IG, CSR_READY, CSR_RESET, read_host_csr(), and write_host_csr().

Referenced by heci_reset().

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cse_set_to_d0i3()

void cse_set_to_d0i3

(

void

)

Definition at line 1003 of file cse.c.

References DEV_IDLE, is_cse_devfn_visible(), PCH_DEVFN_CSE, and set_cse_device_state().

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cse_trigger_vboot_recovery()

void cse_trigger_vboot_recovery

(

enum csme_failure_reason

reason

)

Definition at line 918 of file cse.c.

References BIOS_DEBUG, CONFIG, die(), me_read_config32(), NULL, PCI_ME_HFSTS1, PCI_ME_HFSTS2, PCI_ME_HFSTS3, printk, vboot_get_context(), vboot_reboot(), and vboot_save_data().

Referenced by cse_sub_part_fw_component_update(), and handle_cse_eop_result().

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cse_wait_com_soft_temp_disable()

uint8_t cse_wait_com_soft_temp_disable

(

void

)

Definition at line 319 of file cse.c.

References BIOS_ERR, BIOS_SPEW, CSE_DELAY_BOOT_TO_RO_MS, cse_is_hfs1_com_soft_temp_disable(), HECI_DELAY_US, printk, stopwatch_duration_msecs(), stopwatch_expired(), stopwatch_init_msecs_expire(), and udelay().

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cse_wait_sec_override_mode()

uint8_t cse_wait_sec_override_mode

(

void

)

Definition at line 299 of file cse.c.

References BIOS_DEBUG, BIOS_ERR, cse_is_hfs1_com_secover_mei_msg(), HECI_DELAY_READY_MS, HECI_DELAY_US, printk, stopwatch_duration_msecs(), stopwatch_expired(), stopwatch_init_msecs_expire(), and udelay().

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disable_cse_idle()

static bool disable_cse_idle ( pci_devfn_t  dev )

static

Definition at line 936 of file cse.c.

References CSE_DEV_CIP, CSE_DEV_IDLE, HECI_CIP_TIMEOUT_US, HECI_DELAY_US, MMIO_CSE_DEVIDLE, read_bar(), stopwatch_expired(), stopwatch_init_usecs_expire(), udelay(), and write_bar().

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enable_cse_idle()

static void enable_cse_idle ( pci_devfn_t  dev )

static

Definition at line 954 of file cse.c.

References CSE_DEV_IDLE, MMIO_CSE_DEVIDLE, read_bar(), and write_bar().

Referenced by ensure_cse_idle().

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ensure_cse_active()

static enum cse_device_state ensure_cse_active ( pci_devfn_t  dev )

static

Definition at line 954 of file cse.c.

Referenced by set_cse_device_state().

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ensure_cse_idle()

static void ensure_cse_idle ( pci_devfn_t  dev )

static

Definition at line 980 of file cse.c.

References enable_cse_idle(), pci_and_config32(), PCI_COMMAND, PCI_COMMAND_MASTER, and PCI_COMMAND_MEMORY.

Referenced by set_cse_device_state().

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filled_slots()

static size_t filled_slots ( uint32_t  data )

static

Definition at line 152 of file cse.c.

References CSR_RP_START, and CSR_WP_START.

Referenced by cse_filled_slots(), and host_empty_slots().

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get_cse_bar()

static uintptr_t get_cse_bar ( pci_devfn_t  dev )

static

Definition at line 74 of file cse.c.

References assert, PCI_BASE_ADDRESS_0, PCI_BASE_ADDRESS_MEM_ATTR_MASK, and pci_read_config32().

Referenced by heci_init(), read_bar(), and write_bar().

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get_cse_device_state()

enum cse_device_state get_cse_device_state

(

unsigned int

devfn

)

Definition at line 954 of file cse.c.

Referenced by set_cse_device_state().

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get_me_fw_version()

enum cb_err get_me_fw_version

(

struct me_fw_ver_resp *

resp

)

Definition at line 855 of file cse.c.

References BIOS_DEBUG, me_version::build, CB_SUCCESS, me_fw_ver_resp::code, CONFIG, me_version::hotfix, me_version::major, me_version::minor, and printk.

hdr_get_length()

static size_t hdr_get_length ( uint32_t  hdr )

static

Definition at line 357 of file cse.c.

References MEI_HDR_LENGTH, and MEI_HDR_LENGTH_START.

Referenced by heci_receive().

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heci_init()

void heci_init

(

uintptr_t

tempbar

)

Definition at line 92 of file cse.c.

References get_cse_bar(), HECI1_BASE_ADDRESS, heci_reset(), is_cse_enabled(), PCH_DEV_CSE, PCI_BASE_ADDRESS_0, PCI_BASE_ADDRESS_1, PCI_COMMAND, PCI_COMMAND_MASTER, PCI_COMMAND_MEMORY, pci_or_config16(), pci_read_config16(), pci_write_config16(), and pci_write_config32().

Referenced by mainboard_romstage_entry().

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heci_receive()

static enum cse_tx_rx_status heci_receive ( void *  buff, size_t *  maxlen  )

static

Definition at line 363 of file cse.c.

References ALIGN_DOWN, bytes_to_slots(), cse_ready(), hdr_get_length(), host_gen_interrupt(), memcpy(), SLOT_SIZE, wait_write_slots(), and write_slot().

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heci_reset()

int heci_reset

(

void

)

Definition at line 599 of file cse.c.

References BIOS_CRIT, cse_set_host_ready(), CSR_IG, CSR_RESET, post_code, printk, read_host_csr(), wait_heci_ready(), and write_host_csr().

Referenced by cse_request_reset(), and heci_init().

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heci_send()

static enum cse_tx_rx_status heci_send ( const void *  msg, size_t  len, uint8_t  host_addr, uint8_t  client_addr  )

static

Definition at line 363 of file cse.c.

Referenced by cse_request_reset().

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heci_send_receive()

enum cse_tx_rx_status heci_send_receive	(	const void *	snd_msg,
		size_t	snd_sz,
		void *	rcv_msg,
		size_t *	rcv_sz,
		uint8_t	cse_addr
	)

Definition at line 363 of file cse.c.

Referenced by cse_data_clear_request(), cse_get_boot_performance_data(), cse_get_bp_info(), cse_hmrfpo_enable(), cse_hmrfpo_get_status(), cse_request_reset(), cse_set_next_boot_partition(), and load_cached_fpf().

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heci_set_to_d0i3()

void heci_set_to_d0i3

(

void

)

Definition at line 1012 of file cse.c.

References DEV_IDLE, is_cse_devfn_visible(), PCH_DEV_SLOT_CSE, PCI_DEVFN, and set_cse_device_state().

Referenced by heci_finalize().

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host_empty_slots()

static size_t host_empty_slots ( void  )

static

Definition at line 165 of file cse.c.

References CSR_CBD, CSR_CBD_START, filled_slots(), and read_host_csr().

Referenced by wait_write_slots().

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host_gen_interrupt()

static void host_gen_interrupt ( void  )

static

Definition at line 349 of file cse.c.

References CSR_IG, read_host_csr(), and write_host_csr().

Referenced by heci_receive().

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is_cse_devfn_visible()

bool is_cse_devfn_visible

(

unsigned int

devfn

)

Definition at line 622 of file cse.c.

References BIOS_WARNING, is_devfn_enabled(), PCI_DEV, PCI_FUNC, pci_read_config16(), PCI_SLOT, PCI_VENDOR_ID, and printk.

Referenced by cse_set_to_d0i3(), heci_set_to_d0i3(), and is_cse_enabled().

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is_cse_enabled()

bool is_cse_enabled

(

void

)

Definition at line 640 of file cse.c.

References is_cse_devfn_visible(), and PCH_DEVFN_CSE.

Referenced by cse_get_telemetry_data(), cse_request_reset(), do_send_end_of_post(), dump_cse_state(), dump_me_status(), heci_init(), intel_me_status(), and send_global_reset().

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me_read_config32()

uint32_t me_read_config32

(

int

offset

)

Definition at line 645 of file cse.c.

References offset, PCH_DEV_CSE, and pci_read_config32().

Referenced by cse_check_hfs1_com(), cse_is_hfs1_cws_normal(), cse_is_hfs1_spi_protected(), cse_is_hfs3_fw_sku_lite(), cse_trigger_vboot_recovery(), dump_me_status(), dump_status(), intel_me_status(), and send_global_reset().

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print_me_fw_version()

void print_me_fw_version

(

void *

unused

)

Definition at line 855 of file cse.c.

read_bar()

static uint32_t read_bar ( pci_devfn_t  dev, uint32_t  offset  )

static

Definition at line 127 of file cse.c.

References get_cse_bar(), offset, and read32p().

Referenced by disable_cse_idle(), enable_cse_idle(), read_cse_csr(), read_host_csr(), and read_slot().

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read_cse_csr()

static uint32_t read_cse_csr ( void  )

static

Definition at line 137 of file cse.c.

References MMIO_CSE_CSR, PCH_DEV_CSE, and read_bar().

Referenced by cse_filled_slots(), and cse_ready().

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read_host_csr()

static uint32_t read_host_csr ( void  )

static

Definition at line 142 of file cse.c.

References MMIO_HOST_CSR, PCH_DEV_CSE, and read_bar().

Referenced by clear_int(), cse_set_host_ready(), heci_reset(), host_empty_slots(), and host_gen_interrupt().

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read_slot()

static uint32_t read_slot ( void  )

static

Definition at line 181 of file cse.c.

References MMIO_CSE_CB_RW, PCH_DEV_CSE, and read_bar().

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recv_one_message()

static enum cse_tx_rx_status recv_one_message ( uint32_t *  hdr, void *  buff, size_t  maxlen, size_t *  recv_len  )

static

Definition at line 363 of file cse.c.

send_one_message()

static int send_one_message ( uint32_t  hdr, const void *  buff  )

static

Definition at line 363 of file cse.c.

set_cse_device_state()

bool set_cse_device_state	(	unsigned int	devfn,
		enum cse_device_state	requested_state
	)

Definition at line 987 of file cse.c.

References DEV_ACTIVE, ensure_cse_active(), ensure_cse_idle(), get_cse_device_state(), PCI_DEV, PCI_FUNC, and PCI_SLOT.

Referenced by cse_set_to_d0i3(), do_send_end_of_post(), and heci_set_to_d0i3().

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wait_heci_ready()

static int wait_heci_ready ( void  )

static

Definition at line 335 of file cse.c.

References cse_ready(), HECI_DELAY_READY_MS, HECI_DELAY_US, stopwatch_expired(), stopwatch_init_msecs_expire(), and udelay().

Referenced by heci_reset().

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wait_read_slots()

static int wait_read_slots ( size_t  cnt )

static

Definition at line 206 of file cse.c.

References BIOS_ERR, cse_filled_slots(), HECI_DELAY_US, HECI_READ_TIMEOUT_MS, printk, stopwatch_expired(), stopwatch_init_msecs_expire(), and udelay().

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wait_write_slots()

static int wait_write_slots ( size_t  cnt )

static

Definition at line 191 of file cse.c.

References BIOS_ERR, HECI_DELAY_US, HECI_SEND_TIMEOUT_MS, host_empty_slots(), printk, stopwatch_expired(), stopwatch_init_msecs_expire(), and udelay().

Referenced by heci_receive().

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write_bar()

static void write_bar ( pci_devfn_t  dev, uint32_t  offset, uint32_t  val  )

static

Definition at line 132 of file cse.c.

References get_cse_bar(), offset, val, and write32p().

Referenced by disable_cse_idle(), enable_cse_idle(), write_host_csr(), and write_slot().

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write_host_csr()

static void write_host_csr ( uint32_t  data )

static

Definition at line 147 of file cse.c.

References MMIO_HOST_CSR, PCH_DEV_CSE, and write_bar().

Referenced by clear_int(), cse_set_host_ready(), heci_reset(), and host_gen_interrupt().

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write_slot()

static void write_slot ( uint32_t  val )

static

Definition at line 186 of file cse.c.

References MMIO_CSE_CB_WW, PCH_DEV_CSE, val, and write_bar().

Referenced by heci_receive().

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