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Change-Id: I199168d2e28635331aa0a1902f5491569a878105 Original-Change-Id: I929f613a0574a982f414a79ca8cbc1580d36118e Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/30918 Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com> Reviewed-by: Gregory S. Still <stillgs@us.ibm.com> Reviewed-by: Thi N. Tran <thi@us.ibm.com> Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com> Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/36070 Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com> Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com> Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
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src/import/chips/p9/procedures/hwp/pm/p9_query_cache_access_state.C
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/* IBM_PROLOG_BEGIN_TAG */ | ||
/* This is an automatically generated prolog. */ | ||
/* */ | ||
/* $Source: src/import/chips/p9/procedures/hwp/pm/p9_query_cache_access_state.C $ */ | ||
/* */ | ||
/* OpenPOWER HostBoot Project */ | ||
/* */ | ||
/* Contributors Listed Below - COPYRIGHT 2016,2017 */ | ||
/* [+] International Business Machines Corp. */ | ||
/* */ | ||
/* */ | ||
/* Licensed under the Apache License, Version 2.0 (the "License"); */ | ||
/* you may not use this file except in compliance with the License. */ | ||
/* You may obtain a copy of the License at */ | ||
/* */ | ||
/* http://www.apache.org/licenses/LICENSE-2.0 */ | ||
/* */ | ||
/* Unless required by applicable law or agreed to in writing, software */ | ||
/* distributed under the License is distributed on an "AS IS" BASIS, */ | ||
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */ | ||
/* implied. See the License for the specific language governing */ | ||
/* permissions and limitations under the License. */ | ||
/* */ | ||
/* IBM_PROLOG_END_TAG */ | ||
/// | ||
/// @file p9_query_cache_access_state.C | ||
/// @brief Check the stop level for the EX caches and sets boolean scomable parameters | ||
/// | ||
// *HWP HWP Owner: Christina Graves <clgraves@us.ibm.com> | ||
// *HWP Backup HWP Owner: Greg Still <stillgs@us.ibm.com> | ||
// *HWP FW Owner: Sangeetha T S <sangeet2@in.ibm.com> | ||
// *HWP Team: PM | ||
// *HWP Level: 2 | ||
// *HWP Consumed by: FSP:HS:SBE | ||
/// | ||
/// | ||
/// | ||
/// @verbatim | ||
/// High-level procedure flow: | ||
/// - For the quad target, read the Stop State History register in the PPM | ||
/// and use the actual stop level to determine if the quad has power and is being | ||
/// clocked. | ||
/// @endverbatim | ||
/// | ||
//------------------------------------------------------------------------------ | ||
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// ---------------------------------------------------------------------- | ||
// Includes | ||
// ---------------------------------------------------------------------- | ||
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#include <p9_quad_scom_addresses.H> | ||
#include <p9_query_cache_access_state.H> | ||
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// ---------------------------------------------------------------------- | ||
// Constants | ||
// ---------------------------------------------------------------------- | ||
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const uint32_t eq_clk_l2_pos[] = {8, 9}; | ||
const uint32_t eq_clk_l3_pos[] = {6, 7}; | ||
const uint32_t SSH_REG_STOP_LEVEL = 8; | ||
const uint32_t SSH_REG_STOP_LEVEL_LEN = 4; | ||
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// ---------------------------------------------------------------------- | ||
// Procedure Function | ||
// ---------------------------------------------------------------------- | ||
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fapi2::ReturnCode | ||
p9_query_cache_access_state( | ||
const fapi2::Target<fapi2::TARGET_TYPE_EQ>& i_target, | ||
bool& o_l2_is_scomable, | ||
bool& o_l2_is_scannable, | ||
bool& o_l3_is_scomable, | ||
bool& o_l3_is_scannable) | ||
{ | ||
fapi2::buffer<uint64_t> l_qsshsrc; | ||
uint32_t l_quadStopLevel = 0; | ||
fapi2::buffer<uint64_t> l_data64; | ||
bool l_is_scomable = 1; | ||
uint8_t l_chpltNumber = 0; | ||
uint32_t l_exPos = 0; | ||
uint8_t l_execution_platform = 0; | ||
uint32_t l_stop_state_reg = 0; | ||
const fapi2::Target<fapi2::TARGET_TYPE_SYSTEM> FAPI_SYSTEM; | ||
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FAPI_INF("> p9_query_cache_access_state..."); | ||
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//Get the stop state from the SSHRC in the EQPPM | ||
//First figure out whether we should use the C_PPM_SSHFSP (if FSP platform) or C_PPM_SSHHYP (if HOST platform) | ||
FAPI_TRY(FAPI_ATTR_GET(fapi2::ATTR_EXECUTION_PLATFORM, FAPI_SYSTEM, l_execution_platform), | ||
"Error: Failed to get platform"); | ||
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if (l_execution_platform == 0x02) | ||
{ | ||
l_stop_state_reg = C_PPM_SSHFSP; | ||
} | ||
else | ||
{ | ||
l_stop_state_reg = C_PPM_SSHHYP; | ||
} | ||
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FAPI_TRY(fapi2::getScom(i_target, l_stop_state_reg, l_qsshsrc), "Error reading data from QPPM SSHSRC"); | ||
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//A unit is scommable if clocks are running | ||
//A unit is scannable if the unit is powered up | ||
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//Extract the core stop state | ||
l_qsshsrc.extractToRight<uint32_t>(l_quadStopLevel, SSH_REG_STOP_LEVEL, SSH_REG_STOP_LEVEL_LEN); | ||
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FAPI_DBG("EQ Stop State: EQ(%d)", l_quadStopLevel); | ||
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//Set all attribtes to 1, then clear them based on the stop state | ||
o_l2_is_scomable = 1; | ||
o_l2_is_scannable = 1; | ||
o_l3_is_scomable = 1; | ||
o_l3_is_scannable = 1; | ||
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// STOP8 - Half Quad Deep Sleep | ||
// VSU, ISU are powered off | ||
// IFU, LSU are powered off | ||
// PC, Core EPS are powered off | ||
// L20-EX0 is clocked off if both cores are >= 8 | ||
// L20-EX1 is clocked off if both cores are >= 8 | ||
if (l_quadStopLevel >= 8) | ||
{ | ||
o_l2_is_scomable = 0; | ||
} | ||
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// STOP9 - Fast Winkle (lab use only) | ||
// Both cores and cache are clocked off | ||
if (l_quadStopLevel >= 9) | ||
{ | ||
o_l3_is_scomable = 0; | ||
} | ||
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// STOP11 - Deep Winkle | ||
// Both cores and cache are powered off | ||
if (l_quadStopLevel >= 11) | ||
{ | ||
o_l2_is_scannable = 0; | ||
o_l3_is_scannable = 0; | ||
} | ||
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//Read clock status to confirm stop state history is accurate | ||
//If we trust the stop state history, this could be removed to save on code size | ||
//Compare Hardware status vs stop state status. If there is a mismatch the HW value overrides the stop state | ||
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FAPI_TRY(fapi2::getScom(i_target, EQ_CLOCK_STAT_SL, l_data64), "Error reading data from EQ_CLOCK_STAT_SL"); | ||
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FAPI_TRY(FAPI_ATTR_GET(fapi2::ATTR_CHIP_UNIT_POS, i_target, l_chpltNumber), | ||
"Error: Failed to get the position of the EX:0x%08X", i_target); | ||
l_exPos = l_chpltNumber % 2; | ||
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l_is_scomable = !l_data64.getBit(eq_clk_l2_pos[l_exPos]); | ||
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if (o_l2_is_scomable != l_is_scomable) | ||
{ | ||
FAPI_INF("Clock status didn't match stop state, overriding is_scomable status"); | ||
o_l2_is_scomable = l_is_scomable; | ||
} | ||
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l_is_scomable = !l_data64.getBit(eq_clk_l3_pos[l_exPos]); | ||
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if (o_l3_is_scomable != l_is_scomable) | ||
{ | ||
FAPI_INF("Clock status didn't match stop state, overriding is_scomable status"); | ||
o_l3_is_scomable = l_is_scomable; | ||
} | ||
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fapi_try_exit: | ||
FAPI_INF("< p9_query_cache_access_state..."); | ||
return fapi2::current_err; | ||
} |
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src/import/chips/p9/procedures/hwp/pm/p9_query_cache_access_state.H
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/* IBM_PROLOG_BEGIN_TAG */ | ||
/* This is an automatically generated prolog. */ | ||
/* */ | ||
/* $Source: src/import/chips/p9/procedures/hwp/pm/p9_query_cache_access_state.H $ */ | ||
/* */ | ||
/* OpenPOWER HostBoot Project */ | ||
/* */ | ||
/* Contributors Listed Below - COPYRIGHT 2016,2017 */ | ||
/* [+] International Business Machines Corp. */ | ||
/* */ | ||
/* */ | ||
/* Licensed under the Apache License, Version 2.0 (the "License"); */ | ||
/* you may not use this file except in compliance with the License. */ | ||
/* You may obtain a copy of the License at */ | ||
/* */ | ||
/* http://www.apache.org/licenses/LICENSE-2.0 */ | ||
/* */ | ||
/* Unless required by applicable law or agreed to in writing, software */ | ||
/* distributed under the License is distributed on an "AS IS" BASIS, */ | ||
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */ | ||
/* implied. See the License for the specific language governing */ | ||
/* permissions and limitations under the License. */ | ||
/* */ | ||
/* IBM_PROLOG_END_TAG */ | ||
/// @file p9_query_cache_access_state.H | ||
/// @brief Check the stop level for the EX caches and sets boolean scomable parameters | ||
/// | ||
// *HWP HWP Owner: Christina Graves <clgraves@us.ibm.com> | ||
// *HWP Backup HWP Owner: Greg Still <stillgs@us.ibm.com> | ||
// *HWP FW Owner: Sangeetha T S <sangeet2@in.ibm.com> | ||
// *HWP Team: PM | ||
// *HWP Level: 2 | ||
// *HWP Consumed by: FSP:HS:SBE | ||
/// | ||
///----------------------------------------------------------------------------- | ||
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#ifndef _p9_query_cache_access_state_H_ | ||
#define _p9_query_cache_access_state_H_ | ||
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//------------------------------------------------------------------------------ | ||
// Includes | ||
//------------------------------------------------------------------------------ | ||
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#include <fapi2.H> | ||
#include <p9_pm.H> | ||
#include <p9_quad_scom_addresses.H> | ||
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//------------------------------------------------------------------------------ | ||
// Constant definitions | ||
//------------------------------------------------------------------------------ | ||
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// function pointer typedef definition for HWP call support | ||
typedef fapi2::ReturnCode (*p9_query_cache_access_state_FP_t) ( | ||
const fapi2::Target<fapi2::TARGET_TYPE_EQ>&, | ||
bool&, | ||
bool&, | ||
bool&, | ||
bool&); | ||
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extern "C" | ||
{ | ||
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//------------------------------------------------------------------------------ | ||
// Function prototype | ||
//------------------------------------------------------------------------------ | ||
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/// @brief Check the stop level for the EX caches and sets boolean scomable parameters | ||
/// | ||
/// @param[in] i_target EX target | ||
/// | ||
/// @param[out] o_l2_is_scomable L2 cache has clocks running and is scomable | ||
/// @param[out[ o_l2_is_scannable L2 cache is powered up and has valid latch state | ||
/// @param[out] o_l3_is_scomable L3 cache has clocks running and is scomable | ||
/// @param[out[ o_l2_is_scannable L3 cache is powered up and has valid latch state | ||
/// | ||
/// @return FAPI2_RC_SUCCESS if success, else error code. | ||
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fapi2::ReturnCode | ||
p9_query_cache_access_state( | ||
const fapi2::Target<fapi2::TARGET_TYPE_EQ>& i_target, | ||
bool& o_l2_is_scomable, | ||
bool& o_l2_is_scannable, | ||
bool& o_l3_is_scomable, | ||
bool& o_l3_is_scannable); | ||
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} // extern "C" | ||
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#endif // _p9_query_cache_access_state_H_ |
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src/import/chips/p9/procedures/hwp/pm/p9_query_cache_access_state.mk
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# IBM_PROLOG_BEGIN_TAG | ||
# This is an automatically generated prolog. | ||
# | ||
# $Source: src/import/chips/p9/procedures/hwp/pm/p9_query_cache_access_state.mk $ | ||
# | ||
# OpenPOWER HostBoot Project | ||
# | ||
# Contributors Listed Below - COPYRIGHT 2016,2017 | ||
# [+] International Business Machines Corp. | ||
# | ||
# | ||
# Licensed under the Apache License, Version 2.0 (the "License"); | ||
# you may not use this file except in compliance with the License. | ||
# You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or | ||
# implied. See the License for the specific language governing | ||
# permissions and limitations under the License. | ||
# | ||
# IBM_PROLOG_END_TAG | ||
PROCEDURE=p9_query_cache_access_state | ||
$(call BUILD_PROCEDURE) |