// HWP entry point, comments in header
fapi::ReturnCode proc_reset_i2cm_bus_fence(const fapi::Target & i_target)
{
fapi::ReturnCode rc;
uint32_t rc_ecmd = 0;
ecmdDataBufferBase cfam_data(32);
// mark HWP entry
FAPI_INF("proc_reset_i2cm_bus_fence: Start");
do
{
// read FSI GP4
rc = fapiGetCfamRegister(i_target, CFAM_FSI_GP4_0x00002813, cfam_data);
if (!rc.ok())
{
FAPI_ERR("proc_reset_i2cm_bus_fence: Error from fapiGetCfamRegister (CFAM_FSI_GP4_0x00002813)");
break;
}
// clear fence bit
rc_ecmd |= cfam_data.clearBit(CFAM_FSI_GP4_I2CM_BUS_FENCE_BIT);
if (rc_ecmd)
{
FAPI_ERR("proc_reset_i2cm_bus_fence: Error 0x%x forming FSI GP4 register write data buffer",
rc_ecmd);
rc.setEcmdError(rc_ecmd);
break;
}
// write back modified data
rc = fapiPutCfamRegister(i_target, CFAM_FSI_GP4_0x00002813, cfam_data);
if (!rc.ok())
{
FAPI_ERR("proc_reset_i2cm_bus_fence: Error from fapiGetCfamRegister (CFAM_FSI_GP4_0x00002813)");
break;
}
} while(0);
// mark HWP exit
FAPI_INF("proc_reset_i2cm_bus_fence: End");
return rc;
}
// HWP entry point, comments in header
fapi::ReturnCode proc_chiplet_scominit(const fapi::Target & i_target)
{
fapi::ReturnCode rc;
uint32_t rc_ecmd = 0;
fapi::TargetType target_type;
std::vector<fapi::Target> initfile_targets;
std::vector<fapi::Target> ex_targets;
std::vector<fapi::Target> mcs_targets;
uint8_t nx_enabled;
uint8_t mcs_pos;
uint8_t ex_pos;
uint8_t num_ex_targets;
uint8_t master_mcs_pos = 0xFF;
fapi::Target master_mcs;
uint8_t enable_xbus_resonant_clocking = 0x0;
uint8_t i2c_slave_address = 0x0;
uint8_t dual_capp_present = 0x0;
ecmdDataBufferBase data(64);
ecmdDataBufferBase cfam_data(32);
ecmdDataBufferBase mask(64);
bool is_master = false;
// mark HWP entry
FAPI_INF("proc_chiplet_scominit: Start");
do
{
rc = proc_check_master_sbe_seeprom(i_target, is_master);
if (!rc.ok())
{
FAPI_ERR("proc_cen_ref_clk_enable: Error from proc_check_master_sbe_seeprom");
break;
}
// obtain target type to determine which initfile(s) to execute
target_type = i_target.getType();
// chip level target
if (target_type == fapi::TARGET_TYPE_PROC_CHIP)
{
// execute FBC SCOM initfile
initfile_targets.push_back(i_target);
FAPI_INF("proc_chiplet_scominit: Executing %s on %s",
PROC_CHIPLET_SCOMINIT_FBC_IF, i_target.toEcmdString());
FAPI_EXEC_HWP(
rc,
fapiHwpExecInitFile,
initfile_targets,
PROC_CHIPLET_SCOMINIT_FBC_IF);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiHwpExecInitfile executing %s on %s",
PROC_CHIPLET_SCOMINIT_FBC_IF,
i_target.toEcmdString());
break;
}
// execute PSI SCOM initfile
FAPI_INF("proc_chiplet_scominit: Executing %s on %s",
PROC_CHIPLET_SCOMINIT_PSI_IF, i_target.toEcmdString());
FAPI_EXEC_HWP(
rc,
fapiHwpExecInitFile,
initfile_targets,
PROC_CHIPLET_SCOMINIT_PSI_IF);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiHwpExecInitfile executing %s on %s",
PROC_CHIPLET_SCOMINIT_PSI_IF,
i_target.toEcmdString());
break;
}
// execute TP bridge SCOM initfile
FAPI_INF("proc_chiplet_scominit: Executing %s on %s",
PROC_CHIPLET_SCOMINIT_TPBRIDGE_IF, i_target.toEcmdString());
FAPI_EXEC_HWP(
rc,
fapiHwpExecInitFile,
initfile_targets,
PROC_CHIPLET_SCOMINIT_TPBRIDGE_IF);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiHwpExecInitfile executing %s on %s",
PROC_CHIPLET_SCOMINIT_TPBRIDGE_IF,
i_target.toEcmdString());
break;
}
// query NX partial good attribute
rc = FAPI_ATTR_GET(ATTR_PROC_NX_ENABLE,
&i_target,
nx_enabled);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error querying ATTR_PROC_NX_ENABLE");
break;
}
// apply NX/AS SCOM initfiles only if partial good attribute is set
if (nx_enabled == fapi::ENUM_ATTR_PROC_NX_ENABLE_ENABLE)
{
// execute NX SCOM initfile
FAPI_INF("proc_chiplet_scominit: Executing %s on %s",
PROC_CHIPLET_SCOMINIT_NX_IF, i_target.toEcmdString());
FAPI_EXEC_HWP(
rc,
fapiHwpExecInitFile,
initfile_targets,
PROC_CHIPLET_SCOMINIT_NX_IF);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiHwpExecInitfile executing %s on %s",
PROC_CHIPLET_SCOMINIT_NX_IF,
i_target.toEcmdString());
break;
}
// execute CXA SCOM initfile
FAPI_INF("proc_chiplet_scominit: Executing %s on %s",
PROC_CHIPLET_SCOMINIT_CXA_IF, i_target.toEcmdString());
FAPI_EXEC_HWP(
rc,
fapiHwpExecInitFile,
initfile_targets,
PROC_CHIPLET_SCOMINIT_CXA_IF);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiHwpExecInitfile executing %s on %s",
PROC_CHIPLET_SCOMINIT_CXA_IF,
i_target.toEcmdString());
break;
}
// configure CXA APC master LCO settings
rc = fapiGetChildChiplets(i_target,
fapi::TARGET_TYPE_EX_CHIPLET,
ex_targets,
fapi::TARGET_STATE_FUNCTIONAL);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiGetChildChiplets (EX) on %s",
i_target.toEcmdString());
break;
}
// form valid LCO target list
for (std::vector<fapi::Target>::iterator i = ex_targets.begin();
i != ex_targets.end();
i++)
{
// determine EX chiplet number
rc = FAPI_ATTR_GET(ATTR_CHIP_UNIT_POS, &(*i), ex_pos);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from FAPI_ATTR_GET (ATTR_CHIP_UNIT_POS) on %s",
i->toEcmdString());
break;
}
rc_ecmd |= data.setBit(ex_pos-((ex_pos < 8)?(1):(3)));
}
if (!rc.ok())
{
break;
}
num_ex_targets = ex_targets.size();
rc_ecmd |= data.insertFromRight(
num_ex_targets,
CAPP_APC_MASTER_LCO_TARGET_MIN_START_BIT,
(CAPP_APC_MASTER_LCO_TARGET_MIN_END_BIT-
CAPP_APC_MASTER_LCO_TARGET_MIN_START_BIT+1));
if (rc_ecmd)
{
FAPI_ERR("proc_chiplet_scominit: Error 0x%x setting APC Master LCO Target register data buffer",
rc_ecmd);
rc.setEcmdError(rc_ecmd);
break;
}
rc = fapiPutScom(i_target,
CAPP_APC_MASTER_LCO_TARGET_0x02013021,
data);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: fapiPutScom error (CAPP_APC_MASTER_LCO_TARGET_0x02013021) on %s",
i_target.toEcmdString());
break;
}
// get dual CAPP presence attribute
FAPI_DBG("proc_chiplet_scominit: Querying dual CAPP feature attribute");
rc = FAPI_ATTR_GET(ATTR_CHIP_EC_FEATURE_DUAL_CAPP_PRESENT,
&i_target,
dual_capp_present);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error querying ATTR_CHIP_EC_FEATURE_DUAL_CAPP_PRESENT");
break;
}
if (dual_capp_present != 0)
{
rc = fapiPutScom(i_target,
CAPP1_APC_MASTER_LCO_TARGET_0x020131A1,
data);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: fapiPutScom error (CAPP1_APC_MASTER_LCO_TARGET_0x020131A1) on %s",
i_target.toEcmdString());
break;
}
}
// execute AS SCOM initfile
FAPI_INF("proc_chiplet_scominit: Executing %s on %s",
PROC_CHIPLET_SCOMINIT_AS_IF, i_target.toEcmdString());
FAPI_EXEC_HWP(
rc,
fapiHwpExecInitFile,
initfile_targets,
PROC_CHIPLET_SCOMINIT_AS_IF);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiHwpExecInitfile executing %s on %s",
PROC_CHIPLET_SCOMINIT_AS_IF,
i_target.toEcmdString());
break;
}
}
else
{
FAPI_DBG("proc_chiplet_scominit: Skipping execution of %s/%s/%s (partial good)",
PROC_CHIPLET_SCOMINIT_NX_IF, PROC_CHIPLET_SCOMINIT_CXA_IF, PROC_CHIPLET_SCOMINIT_AS_IF);
}
// conditionally enable I2C Slave
rc = FAPI_ATTR_GET(ATTR_I2C_SLAVE_ADDRESS,
&i_target,
i2c_slave_address);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error querying ATTR_I2C_SLAVE_ADDRESS on %s",
i_target.toEcmdString());
break;
}
rc = fapiGetScom(i_target,
I2C_SLAVE_CONFIG_REG_0x000D0000,
data);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: fapiGetScom error (I2C_SLAVE_CONFIG_REG_0x000D0000) on %s",
i_target.toEcmdString());
break;
}
if (i2c_slave_address)
{
FAPI_DBG("proc_chiplet_scominit: I2C Slave enabled (%s) address = %d",
i_target.toEcmdString(),i2c_slave_address);
//set I2C address
rc_ecmd |= data.insert(i2c_slave_address,0,7);
// disable error state. when this is enabled and there
// is an error from I2CS it locks up the I2CS and no
// more operations are allowed unless cleared
// through FSI. Not good for a FSPless system.
rc_ecmd |= data.clearBit(23);
// enable I2C interface
rc_ecmd |= data.setBit(21);
}
else
{
FAPI_DBG("proc_chiplet_scominit: I2C Slave disabled (%s)",
i_target.toEcmdString());
// disable I2C interface when attribute = 0x0
rc_ecmd |= data.clearBit(21);
}
if (rc_ecmd)
{
FAPI_ERR("proc_chiplet_scominit: Error 0x%x setting I2C Slave register data buffer",
rc_ecmd);
rc.setEcmdError(rc_ecmd);
break;
}
rc = fapiPutScom(i_target,
I2C_SLAVE_CONFIG_REG_0x000D0000,
data);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: fapiPutScom error (I2C_SLAVE_CONFIG_REG_0x000D0000) on %s",
i_target.toEcmdString());
break;
}
// conditionally enable resonant clocking for XBUS
rc = FAPI_ATTR_GET(ATTR_CHIP_EC_FEATURE_XBUS_RESONANT_CLK_VALID,
&i_target,
enable_xbus_resonant_clocking);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error querying ATTR_CHIP_EC_FEATURE_XBUS_RESONANT_CLK_VALID on %s",
i_target.toEcmdString());
break;
}
if (enable_xbus_resonant_clocking)
{
FAPI_DBG("proc_chiplet_scominit: Enabling XBUS resonant clocking");
rc = fapiGetScom(i_target,
MBOX_FSIGP6_0x00050015,
data);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: fapiGetScom error (MBOX_FSIGP6_0x00050015) on %s",
i_target.toEcmdString());
break;
}
rc_ecmd |= data.insertFromRight(
XBUS_RESONANT_CLOCK_CONFIG,
MBOX_FSIGP6_XBUS_RESONANT_CLOCK_CONFIG_START_BIT,
(MBOX_FSIGP6_XBUS_RESONANT_CLOCK_CONFIG_END_BIT-
MBOX_FSIGP6_XBUS_RESONANT_CLOCK_CONFIG_START_BIT+1));
if (rc_ecmd)
{
FAPI_ERR("proc_chiplet_scominit: Error 0x%x setting FSI GP6 register data buffer",
rc_ecmd);
rc.setEcmdError(rc_ecmd);
break;
}
if (is_master)
{
rc = fapiPutScom(i_target,
MBOX_FSIGP6_0x00050015,
data);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: fapiPutScom error (MBOX_FSIGP6_0x00050015) on %s",
i_target.toEcmdString());
break;
}
}
else
{
cfam_data.insert(data, 0, 32, 0);
rc = fapiPutCfamRegister(i_target, CFAM_FSI_GP6_0x00002815, cfam_data);
if (rc)
{
FAPI_ERR("proc_cen_ref_clk_enable: fapiPutCfamRegister error (CFAM_FSI_GP8_0x00001017)");
break;
}
}
}
// execute A/X/PCI/DMI FIR init SCOM initfile
FAPI_INF("proc_chiplet_scominit: Executing %s on %s",
PROC_CHIPLET_SCOMINIT_A_X_PCI_DMI_IF, i_target.toEcmdString());
FAPI_EXEC_HWP(
rc,
fapiHwpExecInitFile,
initfile_targets,
PROC_CHIPLET_SCOMINIT_A_X_PCI_DMI_IF);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiHwpExecInitfile executing %s on %s",
PROC_CHIPLET_SCOMINIT_A_X_PCI_DMI_IF,
i_target.toEcmdString());
break;
}
// execute NV scominit file
uint8_t exist_NV = 0x00;
rc = FAPI_ATTR_GET(ATTR_CHIP_EC_FEATURE_NV_PRESENT, &i_target, exist_NV);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error getting attribute value ATTR_CHIP_EC_FEATURE_NV_PRESENT");
break;
}
if (exist_NV)
{
FAPI_INF("proc_chiplet_scominit: Executing %s on %s",
PROC_CHIPLET_SCOMINIT_NPU_IF, i_target.toEcmdString());
FAPI_EXEC_HWP(
rc,
fapiHwpExecInitFile,
initfile_targets,
PROC_CHIPLET_SCOMINIT_NPU_IF);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiHwpExecInitfile executing %s on %s",
PROC_CHIPLET_SCOMINIT_NPU_IF,
i_target.toEcmdString());
break;
}
// cleanup FIR bit (NPU FIR bit 27) caused by NDL/NTL parity error
rc_ecmd = data.flushTo1();
rc_ecmd = data.clearBit(NPU_FIR_NTL_DL2TL_PARITY_ERR_BIT);
if (rc_ecmd)
{
FAPI_ERR("proc_chiplet_scominit: Error 0x%Xforming NPU FIR cleanup data buffer",
rc_ecmd);
rc.setEcmdError(rc_ecmd);
break;
}
rc = fapiPutScom(i_target, NPU_FIR_AND_0x08013D81, data);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: fapiPutScom error (NPU_FIR_AND_0x08013D81) on %s",
i_target.toEcmdString());
break;
}
rc = fapiPutScom(i_target, NPU_FIR_MASK_AND_0x08013D84, data);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: fapiPutScom error (NPU_FIR_MASK_AND_0x08013D84) on %s",
i_target.toEcmdString());
break;
}
}
else
{
FAPI_INF("proc_chiplet_scominit: NV link logic not present, scom initfile processing skipped");
}
// determine set of functional MCS chiplets
rc = fapiGetChildChiplets(i_target,
fapi::TARGET_TYPE_MCS_CHIPLET,
mcs_targets,
fapi::TARGET_STATE_FUNCTIONAL);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiGetChildChiplets (MCS) on %s",
i_target.toEcmdString());
break;
}
// apply MCS SCOM initfile only for functional chiplets
for (std::vector<fapi::Target>::iterator i = mcs_targets.begin();
(i != mcs_targets.end()) && rc.ok();
i++)
{
// execute MCS SCOM initfile
initfile_targets.clear();
initfile_targets.push_back(*i);
initfile_targets.push_back(i_target);
FAPI_INF("proc_chiplet_scominit: Executing %s on %s",
PROC_CHIPLET_SCOMINIT_MCS_IF, i->toEcmdString());
FAPI_EXEC_HWP(
rc,
fapiHwpExecInitFile,
initfile_targets,
PROC_CHIPLET_SCOMINIT_MCS_IF);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from fapiHwpExecInitfile executing %s on %s",
PROC_CHIPLET_SCOMINIT_MCS_IF,
i->toEcmdString());
break;
}
// determine MCS position
rc = FAPI_ATTR_GET(ATTR_CHIP_UNIT_POS, &(*i), mcs_pos);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: Error from FAPI_ATTR_GET (ATTR_CHIP_UNIT_POS) on %s",
i->toEcmdString());
break;
}
if (mcs_pos < master_mcs_pos)
{
fapi::Target cen_target_unused;
rc = fapiGetOtherSideOfMemChannel(*i,
cen_target_unused,
fapi::TARGET_STATE_FUNCTIONAL);
// use return code only to indicate presence of connected Centaur,
// do not propogate/emit error if not connected
if (rc.ok())
{
FAPI_DBG("Updating master_mcs_pos to %d", mcs_pos);
FAPI_DBG(" Target: %s", cen_target_unused.toEcmdString());
master_mcs = *i;
master_mcs_pos = mcs_pos;
}
else
{
rc = fapi::FAPI_RC_SUCCESS;
}
}
}
if (!rc.ok())
{
break;
}
if (master_mcs.getType() == fapi::TARGET_TYPE_MCS_CHIPLET)
{
// set MCMODE0Q_ENABLE_CENTAUR_SYNC on first target only
// (this bit is required to be set on at most one MCS/chip)
rc_ecmd |= data.flushTo0();
rc_ecmd |= data.setBit(MCSMODE0_EN_CENTAUR_SYNC_BIT);
rc_ecmd |= mask.setBit(MCSMODE0_EN_CENTAUR_SYNC_BIT);
// check buffer manipulation return codes
if (rc_ecmd)
{
FAPI_ERR("proc_chiplet_scominit: Error 0x%X setting up MCSMODE0 data buffer",
rc_ecmd);
rc.setEcmdError(rc_ecmd);
break;
}
// write register with updated content
rc = fapiPutScomUnderMask(master_mcs,
MCS_MCSMODE0_0x02011807,
data,
mask);
if (!rc.ok())
{
FAPI_ERR("proc_chiplet_scominit: fapiPutScomUnderMask error (MCS_MCSMODE0_0x02011807) on %s",
master_mcs.toEcmdString());
break;
}
}
}
// unsupported target type
else
{
FAPI_ERR("proc_chiplet_scominit: Unsupported target type");
const fapi::Target & TARGET = i_target;
FAPI_SET_HWP_ERROR(rc, RC_PROC_CHIPLET_SCOMINIT_INVALID_TARGET);
break;
}
} while(0);
// mark HWP exit
FAPI_INF("proc_chiplet_scominit: End");
return rc;
}
