diff options
Diffstat (limited to 'src/soc/intel/broadwell/pch/me_status.c')
| -rw-r--r-- | src/soc/intel/broadwell/pch/me_status.c | 325 |
1 files changed, 325 insertions, 0 deletions
diff --git a/src/soc/intel/broadwell/pch/me_status.c b/src/soc/intel/broadwell/pch/me_status.c new file mode 100644 index 0000000000..fa44c7c79d --- /dev/null +++ b/src/soc/intel/broadwell/pch/me_status.c @@ -0,0 +1,325 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <device/pci_ops.h> +#include <console/console.h> +#include <device/pci.h> +#include <string.h> +#include <soc/pci_devs.h> +#include <soc/me.h> +#include <delay.h> + +#define ARRAY_TO_ELEMENT(__array__, __index__, __default__) \ + (((__index__) < ARRAY_SIZE((__array__))) ? \ + (__array__)[(__index__)] : \ + (__default__)) + +static inline void me_read_dword_ptr(void *ptr, int offset) +{ + u32 dword = pci_read_config32(PCH_DEV_ME, offset); + memcpy(ptr, &dword, sizeof(dword)); +} + +/* HFS1[3:0] Current Working State Values */ +static const char *me_cws_values[] = { + [ME_HFS_CWS_RESET] = "Reset", + [ME_HFS_CWS_INIT] = "Initializing", + [ME_HFS_CWS_REC] = "Recovery", + [3] = "Unknown (3)", + [4] = "Unknown (4)", + [ME_HFS_CWS_NORMAL] = "Normal", + [ME_HFS_CWS_WAIT] = "Platform Disable Wait", + [ME_HFS_CWS_TRANS] = "OP State Transition", + [ME_HFS_CWS_INVALID] = "Invalid CPU Plugged In", + [9] = "Unknown (9)", + [10] = "Unknown (10)", + [11] = "Unknown (11)", + [12] = "Unknown (12)", + [13] = "Unknown (13)", + [14] = "Unknown (14)", + [15] = "Unknown (15)", +}; + +/* HFS1[8:6] Current Operation State Values */ +static const char *me_opstate_values[] = { + [ME_HFS_STATE_PREBOOT] = "Preboot", + [ME_HFS_STATE_M0_UMA] = "M0 with UMA", + [ME_HFS_STATE_M3] = "M3 without UMA", + [ME_HFS_STATE_M0] = "M0 without UMA", + [ME_HFS_STATE_BRINGUP] = "Bring up", + [ME_HFS_STATE_ERROR] = "M0 without UMA but with error" +}; + +/* HFS[19:16] Current Operation Mode Values */ +static const char *me_opmode_values[] = { + [ME_HFS_MODE_NORMAL] = "Normal", + [ME_HFS_MODE_DEBUG] = "Debug", + [ME_HFS_MODE_DIS] = "Soft Temporary Disable", + [ME_HFS_MODE_OVER_JMPR] = "Security Override via Jumper", + [ME_HFS_MODE_OVER_MEI] = "Security Override via MEI Message" +}; + +/* HFS[15:12] Error Code Values */ +static const char *me_error_values[] = { + [ME_HFS_ERROR_NONE] = "No Error", + [ME_HFS_ERROR_UNCAT] = "Uncategorized Failure", + [ME_HFS_ERROR_IMAGE] = "Image Failure", + [ME_HFS_ERROR_DEBUG] = "Debug Failure" +}; + +/* HFS2[31:28] ME Progress Code */ +static const char *me_progress_values[] = { + [ME_HFS2_PHASE_ROM] = "ROM Phase", + [ME_HFS2_PHASE_BUP] = "BUP Phase", + [ME_HFS2_PHASE_UKERNEL] = "uKernel Phase", + [ME_HFS2_PHASE_POLICY] = "Policy Module", + [ME_HFS2_PHASE_MODULE_LOAD] = "Module Loading", + [ME_HFS2_PHASE_UNKNOWN] = "Unknown", + [ME_HFS2_PHASE_HOST_COMM] = "Host Communication" +}; + +/* HFS2[27:24] Power Management Event */ +static const char *me_pmevent_values[] = { + [ME_HFS2_PMEVENT_CLEAN_MOFF_MX_WAKE] = + "Clean Moff->Mx wake", + [ME_HFS2_PMEVENT_MOFF_MX_WAKE_ERROR] = + "Moff->Mx wake after an error", + [ME_HFS2_PMEVENT_CLEAN_GLOBAL_RESET] = + "Clean global reset", + [ME_HFS2_PMEVENT_CLEAN_GLOBAL_RESET_ERROR] = + "Global reset after an error", + [ME_HFS2_PMEVENT_CLEAN_ME_RESET] = + "Clean Intel ME reset", + [ME_HFS2_PMEVENT_ME_RESET_EXCEPTION] = + "Intel ME reset due to exception", + [ME_HFS2_PMEVENT_PSEUDO_ME_RESET] = + "Pseudo-global reset", + [ME_HFS2_PMEVENT_S0MO_SXM3] = + "S0/M0->Sx/M3", + [ME_HFS2_PMEVENT_SXM3_S0M0] = + "Sx/M3->S0/M0", + [ME_HFS2_PMEVENT_NON_PWR_CYCLE_RESET] = + "Non-power cycle reset", + [ME_HFS2_PMEVENT_PWR_CYCLE_RESET_M3] = + "Power cycle reset through M3", + [ME_HFS2_PMEVENT_PWR_CYCLE_RESET_MOFF] = + "Power cycle reset through Moff", + [ME_HFS2_PMEVENT_SXMX_SXMOFF] = + "Sx/Mx->Sx/Moff" +}; + +/* Progress Code 0 states */ +static const char *me_progress_rom_values[] = { + [ME_HFS2_STATE_ROM_BEGIN] = "BEGIN", + [ME_HFS2_STATE_ROM_DISABLE] = "DISABLE" +}; + +/* Progress Code 1 states */ +static const char *me_progress_bup_values[] = { + [ME_HFS2_STATE_BUP_INIT] = + "Initialization starts", + [ME_HFS2_STATE_BUP_DIS_HOST_WAKE] = + "Disable the host wake event", + [ME_HFS2_STATE_BUP_FLOW_DET] = + "Flow determination start process", + [ME_HFS2_STATE_BUP_VSCC_ERR] = + "Error reading/matching the VSCC table in the descriptor", + [ME_HFS2_STATE_BUP_CHECK_STRAP] = + "Check to see if straps say ME DISABLED", + [ME_HFS2_STATE_BUP_PWR_OK_TIMEOUT] = + "Timeout waiting for PWROK", + [ME_HFS2_STATE_BUP_MANUF_OVRD_STRAP] = + "Possibly handle BUP manufacturing override strap", + [ME_HFS2_STATE_BUP_M3] = + "Bringup in M3", + [ME_HFS2_STATE_BUP_M0] = + "Bringup in M0", + [ME_HFS2_STATE_BUP_FLOW_DET_ERR] = + "Flow detection error", + [ME_HFS2_STATE_BUP_M3_CLK_ERR] = + "M3 clock switching error", + [ME_HFS2_STATE_BUP_CPU_RESET_DID_TIMEOUT_MEM_MISSING] = + "Host error - CPU reset timeout, DID timeout, memory missing", + [ME_HFS2_STATE_BUP_M3_KERN_LOAD] = + "M3 kernel load", + [ME_HFS2_STATE_BUP_T32_MISSING] = + "T34 missing - cannot program ICC", + [ME_HFS2_STATE_BUP_WAIT_DID] = + "Waiting for DID BIOS message", + [ME_HFS2_STATE_BUP_WAIT_DID_FAIL] = + "Waiting for DID BIOS message failure", + [ME_HFS2_STATE_BUP_DID_NO_FAIL] = + "DID reported no error", + [ME_HFS2_STATE_BUP_ENABLE_UMA] = + "Enabling UMA", + [ME_HFS2_STATE_BUP_ENABLE_UMA_ERR] = + "Enabling UMA error", + [ME_HFS2_STATE_BUP_SEND_DID_ACK] = + "Sending DID Ack to BIOS", + [ME_HFS2_STATE_BUP_SEND_DID_ACK_ERR] = + "Sending DID Ack to BIOS error", + [ME_HFS2_STATE_BUP_M0_CLK] = + "Switching clocks in M0", + [ME_HFS2_STATE_BUP_M0_CLK_ERR] = + "Switching clocks in M0 error", + [ME_HFS2_STATE_BUP_TEMP_DIS] = + "ME in temp disable", + [ME_HFS2_STATE_BUP_M0_KERN_LOAD] = + "M0 kernel load", +}; + +/* Progress Code 3 states */ +static const char *me_progress_policy_values[] = { + [ME_HFS2_STATE_POLICY_ENTRY] = "Entry into Policy Module", + [ME_HFS2_STATE_POLICY_RCVD_S3] = "Received S3 entry", + [ME_HFS2_STATE_POLICY_RCVD_S4] = "Received S4 entry", + [ME_HFS2_STATE_POLICY_RCVD_S5] = "Received S5 entry", + [ME_HFS2_STATE_POLICY_RCVD_UPD] = "Received UPD entry", + [ME_HFS2_STATE_POLICY_RCVD_PCR] = "Received PCR entry", + [ME_HFS2_STATE_POLICY_RCVD_NPCR] = "Received NPCR entry", + [ME_HFS2_STATE_POLICY_RCVD_HOST_WAKE] = "Received host wake", + [ME_HFS2_STATE_POLICY_RCVD_AC_DC] = "Received AC<>DC switch", + [ME_HFS2_STATE_POLICY_RCVD_DID] = "Received DRAM Init Done", + [ME_HFS2_STATE_POLICY_VSCC_NOT_FOUND] = + "VSCC Data not found for flash device", + [ME_HFS2_STATE_POLICY_VSCC_INVALID] = + "VSCC Table is not valid", + [ME_HFS2_STATE_POLICY_FPB_ERR] = + "Flash Partition Boundary is outside address space", + [ME_HFS2_STATE_POLICY_DESCRIPTOR_ERR] = + "ME cannot access the chipset descriptor region", + [ME_HFS2_STATE_POLICY_VSCC_NO_MATCH] = + "Required VSCC values for flash parts do not match", +}; + +void intel_me_status(void) +{ + if (CONFIG_DEFAULT_CONSOLE_LOGLEVEL < BIOS_DEBUG) + return; + + struct me_hfs _hfs, *hfs = &_hfs; + struct me_hfs2 _hfs2, *hfs2 = &_hfs2; + + me_read_dword_ptr(hfs, PCI_ME_HFS); + me_read_dword_ptr(hfs2, PCI_ME_HFS2); + + /* Check Current States */ + printk(BIOS_DEBUG, "ME: FW Partition Table : %s\n", + hfs->fpt_bad ? "BAD" : "OK"); + printk(BIOS_DEBUG, "ME: Bringup Loader Failure : %s\n", + hfs->ft_bup_ld_flr ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Firmware Init Complete : %s\n", + hfs->fw_init_complete ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Manufacturing Mode : %s\n", + hfs->mfg_mode ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Boot Options Present : %s\n", + hfs->boot_options_present ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Update In Progress : %s\n", + hfs->update_in_progress ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Current Working State : %s\n", + ARRAY_TO_ELEMENT(me_cws_values, + hfs->working_state, + "Unknown (OOB)")); + printk(BIOS_DEBUG, "ME: Current Operation State : %s\n", + ARRAY_TO_ELEMENT(me_opstate_values, + hfs->operation_state, + "Unknown (OOB)")); + printk(BIOS_DEBUG, "ME: Current Operation Mode : %s\n", + ARRAY_TO_ELEMENT(me_opmode_values, + hfs->operation_mode, + "Unknown (OOB)")); + printk(BIOS_DEBUG, "ME: Error Code : %s\n", + ARRAY_TO_ELEMENT(me_error_values, + hfs->error_code, + "Unknown (OOB)")); + printk(BIOS_DEBUG, "ME: Progress Phase : %s\n", + ARRAY_TO_ELEMENT(me_progress_values, + hfs2->progress_code, + "Unknown (OOB)")); + printk(BIOS_DEBUG, "ME: Power Management Event : %s\n", + ARRAY_TO_ELEMENT(me_pmevent_values, + hfs2->current_pmevent, + "Unknown (OOB)")); + + printk(BIOS_DEBUG, "ME: Progress Phase State : "); + switch (hfs2->progress_code) { + case ME_HFS2_PHASE_ROM: /* ROM Phase */ + printk(BIOS_DEBUG, "%s", + ARRAY_TO_ELEMENT(me_progress_rom_values, + hfs2->current_state, + "Unknown (OOB)")); + break; + + case ME_HFS2_PHASE_UKERNEL: /* uKernel Phase */ + printk(BIOS_DEBUG, "0x%02x", hfs2->current_state); + break; + + case ME_HFS2_PHASE_BUP: /* Bringup Phase */ + if (ARRAY_TO_ELEMENT(me_progress_bup_values, + hfs2->current_state, NULL)) + printk(BIOS_DEBUG, "%s", + ARRAY_TO_ELEMENT(me_progress_bup_values, + hfs2->current_state, + NULL)); + else + printk(BIOS_DEBUG, "0x%02x", hfs2->current_state); + break; + + case ME_HFS2_PHASE_POLICY: /* Policy Module Phase */ + if (ARRAY_TO_ELEMENT(me_progress_policy_values, + hfs2->current_state, NULL)) + printk(BIOS_DEBUG, "%s", + ARRAY_TO_ELEMENT(me_progress_policy_values, + hfs2->current_state, + NULL)); + else + printk(BIOS_DEBUG, "0x%02x", hfs2->current_state); + break; + + case ME_HFS2_PHASE_HOST_COMM: /* Host Communication Phase */ + if (!hfs2->current_state) + printk(BIOS_DEBUG, "Host communication established"); + else + printk(BIOS_DEBUG, "0x%02x", hfs2->current_state); + break; + + default: + printk(BIOS_DEBUG, "Unknown phase: 0x%02x state: 0x%02x", + hfs2->progress_code, hfs2->current_state); + } + printk(BIOS_DEBUG, "\n"); +} + +void intel_me_hsio_version(uint16_t *version, uint16_t *checksum) +{ + int count; + u32 hsiover; + struct me_hfs hfs; + + /* Query for HSIO version, overloads H_GS and HFS */ + pci_write_config32(PCH_DEV_ME, PCI_ME_H_GS, + ME_HSIO_MESSAGE | ME_HSIO_CMD_GETHSIOVER); + + /* Must wait for ME acknowledgement */ + for (count = ME_RETRY; count > 0; --count) { + me_read_dword_ptr(&hfs, PCI_ME_HFS); + if (hfs.bios_msg_ack) + break; + udelay(ME_DELAY); + } + if (!count) { + printk(BIOS_ERR, "ERROR: ME failed to respond\n"); + return; + } + + /* HSIO version should be in HFS_5 */ + hsiover = pci_read_config32(PCH_DEV_ME, PCI_ME_HFS5); + *version = hsiover >> 16; + *checksum = hsiover & 0xffff; + + printk(BIOS_DEBUG, "ME: HSIO Version : %d (CRC 0x%04x)\n", + *version, *checksum); + + /* Reset registers to normal behavior */ + pci_write_config32(PCH_DEV_ME, PCI_ME_H_GS, + ME_HSIO_MESSAGE | ME_HSIO_CMD_GETHSIOVER); +} |