| /* IBM_PROLOG_BEGIN_TAG */ |
| /* This is an automatically generated prolog. */ |
| /* */ |
| /* $Source: src/import/chips/p9/procedures/utils/stopreg/p9_stop_api.H $ */ |
| /* */ |
| /* OpenPOWER HostBoot Project */ |
| /* */ |
| /* Contributors Listed Below - COPYRIGHT 2015,2017 */ |
| /* [+] 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 */ |
| #ifndef __P9_STOP_IMAGE_API_ |
| #define __P9_STOP_IMAGE_API_ |
| |
| #include <stdint.h> |
| |
| #ifdef __SKIBOOT__ |
| #include <skiboot.h> |
| #endif |
| |
| /// |
| /// @file p9_stop_api.H |
| /// @brief describes STOP API which create/manipulate STOP image. |
| /// |
| // *HWP HW Owner : Greg Still <stillgs@us.ibm.com> |
| // *HWP FW Owner : Prem Shanker Jha <premjha2@in.ibm.com> |
| // *HWP Team : PM |
| // *HWP Level : 2 |
| // *HWP Consumed by : HB:HYP |
| |
| #ifdef __cplusplus |
| namespace stopImageSection |
| { |
| #endif |
| |
| /** |
| * @brief all SPRs and MSR for which register restore is to be supported. |
| * @note STOP API design has built in support to accomodate 8 register of |
| * scope core and thread each. |
| */ |
| typedef enum |
| { |
| P9_STOP_SPR_DAWR = 180, // thread register |
| P9_STOP_SPR_HSPRG0 = 304, // thread register |
| P9_STOP_SPR_HRMOR = 313, // core register |
| P9_STOP_SPR_LPCR = 318, // thread register |
| P9_STOP_SPR_HMEER = 337, // core register |
| P9_STOP_SPR_LDBAR = 850, // thread register |
| P9_STOP_SPR_PSSCR = 855, // thread register |
| P9_STOP_SPR_PMCR = 884, // core register |
| P9_STOP_SPR_HID = 1008, // core register |
| P9_STOP_SPR_MSR = 2000, // thread register |
| } CpuReg_t; |
| |
| /** |
| * @brief lists all the bad error codes. |
| */ |
| typedef enum |
| { |
| STOP_SAVE_SUCCESS = 0, |
| STOP_SAVE_ARG_INVALID_IMG = 1, |
| STOP_SAVE_ARG_INVALID_REG = 2, |
| STOP_SAVE_ARG_INVALID_THREAD = 3, |
| STOP_SAVE_ARG_INVALID_MODE = 4, |
| STOP_SAVE_ARG_INVALID_CORE = 5, |
| STOP_SAVE_SPR_ENTRY_NOT_FOUND = 6, |
| STOP_SAVE_SPR_ENTRY_UPDATE_FAILED = 7, |
| STOP_SAVE_SCOM_INVALID_OPERATION = 8, |
| STOP_SAVE_SCOM_INVALID_SECTION = 9, |
| STOP_SAVE_SCOM_INVALID_ADDRESS = 10, |
| STOP_SAVE_SCOM_INVALID_CHIPLET = 11, |
| STOP_SAVE_SCOM_ENTRY_UPDATE_FAILED = 12, |
| STOP_SAVE_INVALID_FUSED_CORE_STATUS = 13, |
| STOP_SAVE_FAIL = 14, // for internal failure within firmware. |
| } StopReturnCode_t; |
| |
| /** |
| * @brief summarizes all operations supported on scom entries of STOP image. |
| */ |
| typedef enum |
| { |
| P9_STOP_SCOM_OP_MIN = 0, |
| P9_STOP_SCOM_APPEND = 1, |
| P9_STOP_SCOM_REPLACE = 2, |
| P9_STOP_SCOM_OR = 3, |
| P9_STOP_SCOM_AND = 4, |
| P9_STOP_SCOM_NOOP = 5, |
| P9_STOP_SCOM_RESET = 6, |
| P9_STOP_SCOM_OR_APPEND = 7, |
| P9_STOP_SCOM_AND_APPEND = 8, |
| P9_STOP_SCOM_OP_MAX = 9 |
| } ScomOperation_t; |
| |
| /** |
| * @brief All subsections that contain scom entries in a STOP image. |
| */ |
| typedef enum |
| { |
| P9_STOP_SECTION_MIN = 0, |
| P9_STOP_SECTION_CORE_SCOM = 1, |
| P9_STOP_SECTION_EQ_SCOM = 2, |
| P9_STOP_SECTION_L2 = 3, |
| P9_STOP_SECTION_L3 = 4, |
| P9_STOP_SECTION_MAX = 5 |
| } ScomSection_t; |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| /** |
| * @brief Updates STOP image entry associated with CPU register. |
| * @param[in] i_pImage start address of homer image associated with processor. |
| * @param[in] i_regId id of SPR for which STOP image needs to be updated. |
| * @param[in] i_regData data to be restored in SPR register. |
| * @param[in] i_pir value of processor identification register (PIR) |
| * @return STOP_SAVE_SUCCESS SUCCESS if image is updated successfully, error |
| * code otherwise. |
| */ |
| |
| StopReturnCode_t p9_stop_save_cpureg( void* const i_pImage, |
| const CpuReg_t i_regId, |
| const uint64_t i_regData, |
| const uint64_t i_pir ); |
| |
| /** |
| * @brief Updates scom image entry associated with given core or cache in |
| * STOP section of homer image. |
| * @param[in] i_pImage start address of homer image of P9 chip. |
| * @param[in] i_scomAddress fully qualified address of SCOM register. |
| * @param[in] i_scomData data associated with SCOM register. |
| * @param[in] i_operation operation to be done on SCOM image entry. |
| * @param[in] i_section area to which given SCOM entry belongs. |
| * @return STOP_SAVE_SUCCESS if image is updated successfully, error code |
| * otherwise. |
| * @note API is intended to update SCOM image entry associated with given |
| * core or given part of a cache section. API doesn't validate if |
| * a given SCOM address really belongs to given section. |
| */ |
| StopReturnCode_t p9_stop_save_scom( void* const i_pImage, |
| const uint32_t i_scomAddress, |
| const uint64_t i_scomData, |
| const ScomOperation_t i_operation, |
| const ScomSection_t i_section ); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| }; // namespace stopImageSection ends |
| #endif //__cplusplus |
| |
| #endif //__P9_STOP_IMAGE_API_ |
