diff options
Diffstat (limited to 'src/occ/homer.c')
| -rwxr-xr-x | src/occ/homer.c | 172 |
1 files changed, 145 insertions, 27 deletions
diff --git a/src/occ/homer.c b/src/occ/homer.c index d7b2a3b..67ada05 100755 --- a/src/occ/homer.c +++ b/src/occ/homer.c @@ -5,10 +5,10 @@ /* */ /* OpenPOWER OnChipController Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2011,2014 */ -/* [+] Google Inc. */ +/* Contributors Listed Below - COPYRIGHT 2011,2015 */ /* [+] 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 */ @@ -26,6 +26,9 @@ // Description: HOMER specific functions. #include "ssx.h" +#include <errl.h> +#include <occ_service_codes.h> +#include <occ_common.h> #include <homer.h> /* @@ -49,26 +52,22 @@ */ homer_rc_t homer_hd_map_read_unmap(const homer_read_var_t i_id, - uint32_t *o_host_data, - int *o_ssx_rc) + void * const o_host_data, + int * const o_ssx_rc) { - // Locals Ppc405MmuMap l_mmuMapHomer = 0; homer_rc_t l_rc = HOMER_SUCCESS; occHostConfigDataArea_t *l_hdcfg_data = 0x00000000; - *o_ssx_rc = SSX_OK; - // Validate the parms and id - if (!o_host_data) + // Validate the pointers + if (!o_host_data || !o_ssx_rc || ((uint32_t)o_host_data % 4)) { l_rc = HOMER_BAD_PARM; } - else if (HOMER_LAST_VAR <= i_id) - { - l_rc = HOMER_UNKNOWN_ID; - } else { + *o_ssx_rc = SSX_OK; + /* * Map to mainstore at HOMER host data offset. The first parameter is * the effective address where the data can be accessed once mapped, the @@ -88,31 +87,79 @@ homer_rc_t homer_hd_map_read_unmap(const homer_read_var_t i_id, } else { - // Check version, if ok return data requested. We need to support + // Check version, if ok handle ID requested. We need to support // current version as well as older ones - if (HOMER_HD_VERSION_SUPPORT < l_hdcfg_data->version) + if ((HOMER_VERSION_MIN > l_hdcfg_data->version) + || + (HOMER_VERSION_MAX < l_hdcfg_data->version)) { l_rc = HOMER_UNSUPPORTED_HD_VERSION; } else { - switch (i_id) + // Version guaranteed to be within supported range + + // HOMER Version 1 support + if (HOMER_VERSION_1 == l_hdcfg_data->version) + { + switch (i_id) + { + case HOMER_VERSION: + *(uint32_t *)o_host_data = l_hdcfg_data->version; + break; + case HOMER_NEST_FREQ: + *(uint32_t *)o_host_data = l_hdcfg_data->nestFrequency; + break; + default: + l_rc = HOMER_UNKNOWN_ID; + break; + } + } + else if (HOMER_VERSION_2 == l_hdcfg_data->version) { - case HOMER_VERSION: - *o_host_data = l_hdcfg_data->version; - break; - case HOMER_NEST_FREQ: - *o_host_data = l_hdcfg_data->nestFrequency; - break; - case HOMER_INT_TYPE: - *o_host_data = l_hdcfg_data->occInterruptType; - break; - default: - // Nothing to do, range checked above - break; + switch (i_id) + { + case HOMER_VERSION: + *(uint32_t *)o_host_data = l_hdcfg_data->version; + break; + case HOMER_NEST_FREQ: + *(uint32_t *)o_host_data = l_hdcfg_data->nestFrequency; + break; + case HOMER_INT_TYPE: + *(uint32_t *)o_host_data = l_hdcfg_data->occInterruptType; + break; + default: + l_rc = HOMER_UNKNOWN_ID; + break; + } + } + else if (HOMER_VERSION_3 == l_hdcfg_data->version) + { + switch (i_id) + { + case HOMER_VERSION: + *(uint32_t *)o_host_data = l_hdcfg_data->version; + break; + case HOMER_NEST_FREQ: + *(uint32_t *)o_host_data = l_hdcfg_data->nestFrequency; + break; + case HOMER_INT_TYPE: + *(uint32_t *)o_host_data = l_hdcfg_data->occInterruptType; + break; + case HOMER_FIR_MASTER: + *(uint32_t *)o_host_data = l_hdcfg_data->firMaster; + break; + case HOMER_FIR_PARMS: + memcpy(o_host_data, &(l_hdcfg_data->firParms[0]), HOMER_FIR_PARM_SIZE); + break; + default: + l_rc = HOMER_UNKNOWN_ID; + break; + } } } + // Unmap the HOMER before returning to caller *o_ssx_rc = ppc405_mmu_unmap(&l_mmuMapHomer); if ((SSX_OK != *o_ssx_rc) && (HOMER_SUCCESS == l_rc)) { @@ -125,4 +172,75 @@ homer_rc_t homer_hd_map_read_unmap(const homer_read_var_t i_id, } // End of homer_hd_map_read_unmap + +/* + * Function Specification + * + * Name: homer_log_access_error + * + * Description: Utility function to log an error that occurred while accessing + * the HOMER. + * + * End Function Specification + */ +void homer_log_access_error(const homer_rc_t i_homer_rc, + const int i_ssx_rc, + const uint32_t i_usr_data2) +{ + // Catch and log the homer error + if (HOMER_SUCCESS != i_homer_rc) + { + // We could potentially have both an internal error dealing with the + // homer and an SSX error, for example we could find an unsupported + // version number in the homer and then have an ssx error trying to + // unmap the homer address space. This check catches all those cases. + if (SSX_OK != i_ssx_rc) + { + /* @ + * @errortype + * @moduleid MAIN_MID + * @reasoncode SSX_GENERIC_FAILURE + * @userdata1 HOMER and SSX return codes + * @userdata2 Host interrupt type used + * @userdata4 ERC_HOMER_MAIN_SSX_ERROR + * @devdesc An SSX error occurred mapping the HOMER host data + * into the OCC address space. User word 1 contains + * both the internal and SSX return codes returned + * by the method used to access the HOMER data. + */ + errlHndl_t l_err = createErrl(MAIN_MID, //modId + SSX_GENERIC_FAILURE, //reasoncode + ERC_HOMER_MAIN_SSX_ERROR, //Extended reason code + ERRL_SEV_PREDICTIVE, //Severity + NULL, //Trace Buf + DEFAULT_TRACE_SIZE, //Trace Size + (i_homer_rc << 16) | (0xFFFF & (uint32_t)i_ssx_rc), //userdata1 + i_usr_data2); //userdata2 + commitErrl(&l_err); + } + else + { + /* @ + * @errortype + * @moduleid MAIN_MID + * @reasoncode INTERNAL_FAILURE + * @userdata1 HOMER return code + * @userdata2 Default host interrupt type used. + * @userdata4 ERC_HOMER_MAIN_ACCESS_ERROR + * @devdesc Error accessing initialization data + */ + errlHndl_t l_err = createErrl(MAIN_MID, //modId + INTERNAL_FAILURE, //reasoncode + ERC_HOMER_MAIN_ACCESS_ERROR,//Extended reason code + ERRL_SEV_INFORMATIONAL, //Severity + NULL, //Trace Buf + DEFAULT_TRACE_SIZE, //Trace Size + i_homer_rc, //userdata1 + i_usr_data2); //userdata2 + commitErrl(&l_err); + } + } +} +// End of homer_log_access_error + // End of homer.c |
