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Diffstat (limited to 'src/occ/amec/amec_oversub.c')
| -rwxr-xr-x | src/occ/amec/amec_oversub.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/src/occ/amec/amec_oversub.c b/src/occ/amec/amec_oversub.c new file mode 100755 index 0000000..2b967b7 --- /dev/null +++ b/src/occ/amec/amec_oversub.c @@ -0,0 +1,272 @@ +/****************************************************************************** +// @file amec_oversub.c +// @brief Over-subscription +*/ +/****************************************************************************** + * + * @page ChangeLogs Change Logs + * @section _amec_oversub_c amec_oversub.c + * @verbatim + * + * Flag Def/Fea Userid Date Description + * ------- ---------- -------- ---------- ---------------------------------- + * @at010 859992 alvinwan 11/07/2012 Added oversubscription feature + * @th028 867841 thallet 01/22/2013 Trace in oversubscription causes panic + * @fk001 879727 fmkassem 04/16/2013 PCAP support. + * @at020 908666 alvinwan 12/16/2013 Oversubscription Error Handling + * @at023 910877 alvinwan 01/09/2014 Excessive fan increase requests error for mfg + * @gm026 916029 milesg 02/17/2014 revert back to auto2 mode without reading GPIO's + * @gm041 928150 milesg 06/02/2014 add callout for mfg oversubscription elog + * + * @endverbatim + * + *///*************************************************************************/ + +//************************************************************************* +// Includes +//************************************************************************* +#include "ssx.h" + +#include <occ_common.h> +#include <trac.h> +#include <amec_sys.h> +#include <proc_pstate.h> +#include <dcom.h> +#include <occ_sys_config.h> +#include <amec_service_codes.h> +//************************************************************************* +// Externs +//************************************************************************* + +//************************************************************************* +// Macros +//************************************************************************* + +//************************************************************************* +// Defines/Enums +//************************************************************************* +#define OVERSUB_REASON_DELAY_4MS 16 // 4ms (unit is 250us) +#define OVERSUB_REASON_COUNT_TIMEOUT 2 +#define OVERSUB_REASON_DETERMINED 1 + +//************************************************************************* +// Structures +//************************************************************************* + +//************************************************************************* +// Globals +//************************************************************************* + +//************************************************************************* +// Function Prototypes +//************************************************************************* + +//************************************************************************* +// Functions +//************************************************************************* + + + + +// Function Specification +// +// Name: amec_oversub_pmax_clip +// +// Description: Set Pmax_Clip in PMC to lowest Pstate +// +// +// Flow: FN= +// +// Task Flags: +// +// End Function Specification +void amec_oversub_pmax_clip(Pstate i_pstate) +{ + pmc_rail_bounds_register_t prbr; + + // Set Pmax_Clip in PMC to lowest Pstate + prbr.value = in32(PMC_RAIL_BOUNDS_REGISTER); + prbr.fields.pmax_rail = i_pstate; //@fk001c + out32(PMC_RAIL_BOUNDS_REGISTER, prbr.value); +} + + +//************************************************************************* +// Functions +//************************************************************************* +// Function Specification +// +// Name: amec_oversub_isr +// +// Description: Oversubscription ISR +// +// Flow: FN= +// +// Task Flags: +// +// Note: This function is only ever called from Critical interrupt context +// +// End Function Specification + +void amec_oversub_isr(void) +{ + static uint32_t l_isr_count = 0; + static uint8_t l_polarity = SSX_IRQ_POLARITY_ACTIVE_LOW; // Default is low + uint8_t l_cur_polarity = l_polarity; + + l_isr_count++; + + // SSX_IRQ_POLARITY_ACTIVE_LOW means over-subscription is active + if(l_polarity == SSX_IRQ_POLARITY_ACTIVE_LOW) + { + // If RTL doesn't control it, do it here + if(g_amec->oversub_status.oversubLatchAmec == 0) + { + // Set PMC Pmax_clip to Pmin and throttle all Cores via OCI write to PMC + amec_oversub_pmax_clip(gpst_pmin(&G_global_pstate_table)); //@fk001c + // TODO: Throttle all Centaurs via PORE-GPE by setting 'Emergency Throttle' + + g_amec->oversub_status.oversubReasonLatchCount = OVERSUB_REASON_DELAY_4MS; + } + + // Set oversubPinLive and oversubActiveTime + g_amec->oversub_status.oversubPinLive = 1; + g_amec->oversub_status.oversubActiveTime = ssx_timebase_get(); + + // Setup the IRQ + ssx_irq_setup(PGP_IRQ_EXTERNAL_TRAP, + SSX_IRQ_POLARITY_ACTIVE_HIGH, + SSX_IRQ_TRIGGER_LEVEL_SENSITIVE); + l_polarity = SSX_IRQ_POLARITY_ACTIVE_HIGH; + + } + else // over-subscription is inactive + { + // Clear oversubPinLive + g_amec->oversub_status.oversubPinLive = 0; + + // Set oversubInActiveTime + g_amec->oversub_status.oversubInactiveTime = ssx_timebase_get(); + + // Setup the IRQ + ssx_irq_setup(PGP_IRQ_EXTERNAL_TRAP, + SSX_IRQ_POLARITY_ACTIVE_LOW, + SSX_IRQ_TRIGGER_LEVEL_SENSITIVE); + + l_polarity = SSX_IRQ_POLARITY_ACTIVE_LOW; + } + + // Trace Oversub Event, Polarity and ISR count + TRAC_INFO("Oversub IRQ - Polarity (low active):%d, oversubPinLive: %d, count: %d)", l_cur_polarity, g_amec->oversub_status.oversubPinLive, l_isr_count); + +} + +// Function Specification +// +// Name: amec_oversub_check +// +// Description: Oversubscription check called in +// amec_slv_common_tasks_pre() +// +// +// Flow: FN= +// +// Task Flags: +// +// End Function Specification +void amec_oversub_check(void) +{ + //uint8_t l_cme_pin = G_sysConfigData.apss_gpio_map.cme_throttle_n; //gm026 + uint8_t l_cme_pin_value = 1; // low active, so set default to high + static BOOLEAN l_prev_ovs_state = FALSE; // oversub happened // @at020a + + // Get CME Pin state + // No longer reading gpio from APSS in GA1 due to instability in APSS composite mode -- gm026 + //apss_gpio_get(l_cme_pin, &l_cme_pin_value); // @at020a + + // Check CME Pin? OR CME Oversub Mnfg Active + if( (l_cme_pin_value == 0) || + (g_amec->oversub_status.cmeThrottlePinMnfg == 1) ) + { + g_amec->oversub_status.cmeThrottlePinLive = 1; + g_amec->oversub_status.cmeThrottleLatchAmec = 1; + } + else + { + // Do not clear cmeThrottleLatchAmec. + // That will only be done via the PowerCa command from TMGT. + g_amec->oversub_status.cmeThrottlePinLive = 0; + } + + // @at020a - start + // oversubscription condition happened? + if ( AMEC_INTF_GET_OVERSUBSCRIPTION() == TRUE ) + { + if ( l_prev_ovs_state != TRUE) + { + l_prev_ovs_state = TRUE; + + TRAC_ERR("Oversubscription condition happened"); + /* @ + * @errortype + * @moduleid AMEC_SLAVE_CHECK_PERFORMANCE + * @reasoncode OVERSUB_ALERT + * @userdata1 Previous OVS State + * @userdata4 ERC_AMEC_SLAVE_OVS_STATE + * @devdesc Oversubscription condition happened + */ + errlHndl_t l_errl = createErrl(AMEC_SLAVE_CHECK_PERFORMANCE,//modId + OVERSUB_ALERT, //reasoncode + ERC_AMEC_SLAVE_OVS_STATE, //Extended reason code + ERRL_SEV_INFORMATIONAL, //Severity + NULL, //Trace Buf + DEFAULT_TRACE_SIZE, //Trace Size + l_prev_ovs_state, //userdata1 + 0); //userdata2 + + // set the mfg action flag (allows callout to be added to info error) + setErrlActions(l_errl, ERRL_ACTIONS_MANUFACTURING_ERROR); + + // add the oversubscription symbolic callout -- gm041 + addCalloutToErrl(l_errl, + ERRL_CALLOUT_TYPE_COMPONENT_ID, + ERRL_COMPONENT_ID_OVERSUBSCRIPTION, + ERRL_CALLOUT_PRIORITY_HIGH); + + // Commit Error + commitErrl(&l_errl); + } + } + else + { + l_prev_ovs_state = FALSE; + } + // @at020a - end + + + + // TODO: Set any more oversub based on APSS GPIO Pins (i.e. Orlena 12V OC pins) + + // Figure out the over-subscription reason + if(g_amec->oversub_status.oversubReasonLatchCount > 1) + { + // Try to figure out why we throttled based on APSS GPIO pins + if( g_amec->oversub_status.oversubReasonLatchCount == OVERSUB_REASON_COUNT_TIMEOUT) + { + g_amec->oversub_status.oversubReason = INDETERMINATE; + g_amec->oversub_status.oversubReasonLatchCount = OVERSUB_REASON_DETERMINED; + + TRAC_INFO("Oversub (oversubReason: %d)", g_amec->oversub_status.oversubReason ); + } + else + { + // If we can figure out why oversub happened, set oversubReason to valide enum value + // then set oversubReasonLatchCount = 1 + + // If we can't figure it out, decrease oversubReasonLatchCount and we will try again in 250us + g_amec->oversub_status.oversubReasonLatchCount--; // The unit of oversubReasonLatchCount is 250us + + } + } + +} |
