diff options
Diffstat (limited to 'arch/x86/include/asm/me_common.h')
| -rw-r--r-- | arch/x86/include/asm/me_common.h | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/arch/x86/include/asm/me_common.h b/arch/x86/include/asm/me_common.h new file mode 100644 index 0000000..49d8862 --- /dev/null +++ b/arch/x86/include/asm/me_common.h @@ -0,0 +1,372 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * From Coreboot src/southbridge/intel/bd82x6x/me.h + * + * Coreboot copies lots of code around. Here we are trying to keep the common + * code in a separate file to reduce code duplication and hopefully make it + * easier to add new platform. + * + * Copyright (C) 2016 Google, Inc + */ + +#ifndef __ASM_ME_COMMON_H +#define __ASM_ME_COMMON_H + +#include <linux/compiler.h> +#include <linux/types.h> +#include <pci.h> + +#define MCHBAR_PEI_VERSION 0x5034 + +#define ME_RETRY 100000 /* 1 second */ +#define ME_DELAY 10 /* 10 us */ + +/* + * Management Engine PCI registers + */ + +#define PCI_CPU_MEBASE_L 0x70 /* Set by MRC */ +#define PCI_CPU_MEBASE_H 0x74 /* Set by MRC */ + +#define PCI_ME_HFS 0x40 +#define ME_HFS_CWS_RESET 0 +#define ME_HFS_CWS_INIT 1 +#define ME_HFS_CWS_REC 2 +#define ME_HFS_CWS_NORMAL 5 +#define ME_HFS_CWS_WAIT 6 +#define ME_HFS_CWS_TRANS 7 +#define ME_HFS_CWS_INVALID 8 +#define ME_HFS_STATE_PREBOOT 0 +#define ME_HFS_STATE_M0_UMA 1 +#define ME_HFS_STATE_M3 4 +#define ME_HFS_STATE_M0 5 +#define ME_HFS_STATE_BRINGUP 6 +#define ME_HFS_STATE_ERROR 7 +#define ME_HFS_ERROR_NONE 0 +#define ME_HFS_ERROR_UNCAT 1 +#define ME_HFS_ERROR_IMAGE 3 +#define ME_HFS_ERROR_DEBUG 4 +#define ME_HFS_MODE_NORMAL 0 +#define ME_HFS_MODE_DEBUG 2 +#define ME_HFS_MODE_DIS 3 +#define ME_HFS_MODE_OVER_JMPR 4 +#define ME_HFS_MODE_OVER_MEI 5 +#define ME_HFS_BIOS_DRAM_ACK 1 +#define ME_HFS_ACK_NO_DID 0 +#define ME_HFS_ACK_RESET 1 +#define ME_HFS_ACK_PWR_CYCLE 2 +#define ME_HFS_ACK_S3 3 +#define ME_HFS_ACK_S4 4 +#define ME_HFS_ACK_S5 5 +#define ME_HFS_ACK_GBL_RESET 6 +#define ME_HFS_ACK_CONTINUE 7 + +struct me_hfs { + u32 working_state:4; + u32 mfg_mode:1; + u32 fpt_bad:1; + u32 operation_state:3; + u32 fw_init_complete:1; + u32 ft_bup_ld_flr:1; + u32 update_in_progress:1; + u32 error_code:4; + u32 operation_mode:4; + u32 reserved:4; + u32 boot_options_present:1; + u32 ack_data:3; + u32 bios_msg_ack:4; +} __packed; + +#define PCI_ME_UMA 0x44 + +struct me_uma { + u32 size:6; + u32 reserved_1:10; + u32 valid:1; + u32 reserved_0:14; + u32 set_to_one:1; +} __packed; + +#define PCI_ME_H_GS 0x4c +#define ME_INIT_DONE 1 +#define ME_INIT_STATUS_SUCCESS 0 +#define ME_INIT_STATUS_NOMEM 1 +#define ME_INIT_STATUS_ERROR 2 + +struct me_did { + u32 uma_base:16; + u32 reserved:7; + u32 rapid_start:1; /* Broadwell only */ + u32 status:4; + u32 init_done:4; +} __packed; + +#define PCI_ME_GMES 0x48 +#define ME_GMES_PHASE_ROM 0 +#define ME_GMES_PHASE_BUP 1 +#define ME_GMES_PHASE_UKERNEL 2 +#define ME_GMES_PHASE_POLICY 3 +#define ME_GMES_PHASE_MODULE 4 +#define ME_GMES_PHASE_UNKNOWN 5 +#define ME_GMES_PHASE_HOST 6 + +struct me_gmes { + u32 bist_in_prog:1; + u32 icc_prog_sts:2; + u32 invoke_mebx:1; + u32 cpu_replaced_sts:1; + u32 mbp_rdy:1; + u32 mfs_failure:1; + u32 warm_rst_req_for_df:1; + u32 cpu_replaced_valid:1; + u32 reserved_1:2; + u32 fw_upd_ipu:1; + u32 reserved_2:4; + u32 current_state:8; + u32 current_pmevent:4; + u32 progress_code:4; +} __packed; + +#define PCI_ME_HERES 0xbc +#define PCI_ME_EXT_SHA1 0x00 +#define PCI_ME_EXT_SHA256 0x02 +#define PCI_ME_HER(x) (0xc0+(4*(x))) + +struct me_heres { + u32 extend_reg_algorithm:4; + u32 reserved:26; + u32 extend_feature_present:1; + u32 extend_reg_valid:1; +} __packed; + +/* + * Management Engine MEI registers + */ + +#define MEI_H_CB_WW 0x00 +#define MEI_H_CSR 0x04 +#define MEI_ME_CB_RW 0x08 +#define MEI_ME_CSR_HA 0x0c + +struct mei_csr { + u32 interrupt_enable:1; + u32 interrupt_status:1; + u32 interrupt_generate:1; + u32 ready:1; + u32 reset:1; + u32 reserved:3; + u32 buffer_read_ptr:8; + u32 buffer_write_ptr:8; + u32 buffer_depth:8; +} __packed; + +#define MEI_ADDRESS_CORE 0x01 +#define MEI_ADDRESS_AMT 0x02 +#define MEI_ADDRESS_RESERVED 0x03 +#define MEI_ADDRESS_WDT 0x04 +#define MEI_ADDRESS_MKHI 0x07 +#define MEI_ADDRESS_ICC 0x08 +#define MEI_ADDRESS_THERMAL 0x09 + +#define MEI_HOST_ADDRESS 0 + +struct mei_header { + u32 client_address:8; + u32 host_address:8; + u32 length:9; + u32 reserved:6; + u32 is_complete:1; +} __packed; + +#define MKHI_GROUP_ID_CBM 0x00 +#define MKHI_GROUP_ID_FWCAPS 0x03 +#define MKHI_GROUP_ID_MDES 0x08 +#define MKHI_GROUP_ID_GEN 0xff + +#define MKHI_GET_FW_VERSION 0x02 +#define MKHI_END_OF_POST 0x0c +#define MKHI_FEATURE_OVERRIDE 0x14 + +/* Ivybridge only: */ +#define MKHI_GLOBAL_RESET 0x0b +#define MKHI_FWCAPS_GET_RULE 0x02 +#define MKHI_MDES_ENABLE 0x09 + +/* Broadwell only: */ +#define MKHI_GLOBAL_RESET 0x0b +#define MKHI_FWCAPS_GET_RULE 0x02 +#define MKHI_GROUP_ID_HMRFPO 0x05 +#define MKHI_HMRFPO_LOCK 0x02 +#define MKHI_HMRFPO_LOCK_NOACK 0x05 +#define MKHI_MDES_ENABLE 0x09 +#define MKHI_END_OF_POST_NOACK 0x1a + +struct mkhi_header { + u32 group_id:8; + u32 command:7; + u32 is_response:1; + u32 reserved:8; + u32 result:8; +} __packed; + +struct me_fw_version { + u16 code_minor; + u16 code_major; + u16 code_build_number; + u16 code_hot_fix; + u16 recovery_minor; + u16 recovery_major; + u16 recovery_build_number; + u16 recovery_hot_fix; +} __packed; + + +#define HECI_EOP_STATUS_SUCCESS 0x0 +#define HECI_EOP_PERFORM_GLOBAL_RESET 0x1 + +#define CBM_RR_GLOBAL_RESET 0x01 + +#define GLOBAL_RESET_BIOS_MRC 0x01 +#define GLOBAL_RESET_BIOS_POST 0x02 +#define GLOBAL_RESET_MEBX 0x03 + +struct me_global_reset { + u8 request_origin; + u8 reset_type; +} __packed; + +enum me_bios_path { + ME_NORMAL_BIOS_PATH, + ME_S3WAKE_BIOS_PATH, + ME_ERROR_BIOS_PATH, + ME_RECOVERY_BIOS_PATH, + ME_DISABLE_BIOS_PATH, + ME_FIRMWARE_UPDATE_BIOS_PATH, +}; + +struct __packed mefwcaps_sku { + u32 full_net:1; + u32 std_net:1; + u32 manageability:1; + u32 small_business:1; + u32 l3manageability:1; + u32 intel_at:1; + u32 intel_cls:1; + u32 reserved:3; + u32 intel_mpc:1; + u32 icc_over_clocking:1; + u32 pavp:1; + u32 reserved_1:4; + u32 ipv6:1; + u32 kvm:1; + u32 och:1; + u32 vlan:1; + u32 tls:1; + u32 reserved_4:1; + u32 wlan:1; + u32 reserved_5:8; +}; + +struct __packed tdt_state_flag { + u16 lock_state:1; + u16 authenticate_module:1; + u16 s3authentication:1; + u16 flash_wear_out:1; + u16 flash_variable_security:1; + u16 wwan3gpresent:1; /* ivybridge only */ + u16 wwan3goob:1; /* ivybridge only */ + u16 reserved:9; +}; + +struct __packed tdt_state_info { + u8 state; + u8 last_theft_trigger; + struct tdt_state_flag flags; +}; + +struct __packed mbp_rom_bist_data { + u16 device_id; + u16 fuse_test_flags; + u32 umchid[4]; +}; + +struct __packed mbp_platform_key { + u32 key[8]; +}; + +struct __packed mbp_header { + u32 mbp_size:8; + u32 num_entries:8; + u32 rsvd:16; +}; + +struct __packed mbp_item_header { + u32 app_id:8; + u32 item_id:8; + u32 length:8; + u32 rsvd:8; +}; + +struct __packed me_fwcaps { + u32 id; + u8 length; + struct mefwcaps_sku caps_sku; + u8 reserved[3]; +}; + +/** + * intel_me_status() - Check Intel Management Engine status + * + * @me_dev: Management engine PCI device + */ +void intel_me_status(struct udevice *me_dev); + +/** + * intel_early_me_init() - Early Intel Management Engine init + * + * @me_dev: Management engine PCI device + * @return 0 if OK, -ve on error + */ +int intel_early_me_init(struct udevice *me_dev); + +/** + * intel_early_me_uma_size() - Get UMA size from the Intel Management Engine + * + * @me_dev: Management engine PCI device + * @return UMA size if OK, -EINVAL on error + */ +int intel_early_me_uma_size(struct udevice *me_dev); + +/** + * intel_early_me_init_done() - Complete Intel Management Engine init + * + * @dev: Northbridge device + * @me_dev: Management engine PCI device + * @status: Status result (ME_INIT_...) + * @return 0 to continue to boot, -EINVAL on unknown result data, -ETIMEDOUT + * if ME did not respond + */ +int intel_early_me_init_done(struct udevice *dev, struct udevice *me_dev, + uint status); + +int intel_me_hsio_version(struct udevice *dev, uint16_t *version, + uint16_t *checksum); + +static inline void pci_read_dword_ptr(struct udevice *me_dev, void *ptr, + int offset) +{ + u32 dword; + + dm_pci_read_config32(me_dev, offset, &dword); + memcpy(ptr, &dword, sizeof(dword)); +} + +static inline void pci_write_dword_ptr(struct udevice *me_dev, void *ptr, + int offset) +{ + u32 dword = 0; + + memcpy(&dword, ptr, sizeof(dword)); + dm_pci_write_config32(me_dev, offset, dword); +} +#endif |