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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/perv/p9_proc_gettracearray.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 */
//------------------------------------------------------------------------------
/// @file p9_proc_gettracearray.H
///
/// @brief Collect contents of specified trace array via SCOM.
///
/// Collects contents of specified trace array via SCOM. Optionally
/// manages chiplet domain trace engine state (start/stop/reset) around
/// trace array data collection. Trace array data can be collected only
/// when its controlling chiplet trace engine is stopped.
///
/// Trace array entries will be packed into data buffer from
/// oldest->youngest entry.
///
/// Calling code is expected to pass the proper target type based on the
/// desired trace resource; a convenience function is provided to find out
/// the expected target type for a given trace resource.
//------------------------------------------------------------------------------
// *HWP HW Owner : Joachim Fenkes <fenkes@de.ibm.com>
// *HWP HW Backup Owner : Joe McGill <jmcgill@us.ibm.com>
// *HWP FW Owner : Thi Tran <thi@us.ibm.com>
// *HWP Team : Perv
// *HWP Level : 2
// *HWP Consumed by : FSP
//------------------------------------------------------------------------------
#ifndef _PROC_GETTRACEARRAY_H_
#define _PROC_GETTRACEARRAY_H_
//------------------------------------------------------------------------------
// Includes
//------------------------------------------------------------------------------
#include <fapi2.H>
#include "p9_tracearray_defs.H"
static const fapi2::TargetType PROC_GETTRACEARRAY_TARGET_TYPES =
fapi2::TARGET_TYPE_PROC_CHIP |
fapi2::TARGET_TYPE_OBUS |
fapi2::TARGET_TYPE_MCBIST |
fapi2::TARGET_TYPE_EX |
fapi2::TARGET_TYPE_CORE;
// structure to represent HWP arguments
struct proc_gettracearray_args
{
p9_tracearray_bus_id trace_bus; ///< The trace bus whose associated trace array should be dumped
bool stop_pre_dump; ///< Stop the trace array before starting the dump
bool ignore_mux_setting; ///< Do not fail if the primary trace mux is set to a different bus
bool collect_dump; ///< Do dump the trace array; useful if you just want to start/stop
bool reset_post_dump; ///< Reset the debug logic after dumping
bool restart_post_dump; ///< Start the trace array after dumping
};
// function pointer typedef definition for HWP call support
typedef fapi2::ReturnCode
(*p9_proc_gettracearray_FP_t)(const fapi2::Target<PROC_GETTRACEARRAY_TARGET_TYPES>&,
const proc_gettracearray_args&,
fapi2::variable_buffer& o_ta_data);
extern "C"
{
/**
* @brief Return the target type needed to access a given trace array
* @param ta_id The trace array / trace bus ID requested.
* @return The type of target to hand to proc_gettracearray to clearly identify the array instance.
*/
static inline fapi2::TargetType proc_gettracearray_target_type(p9_tracearray_bus_id i_trace_bus)
{
if (i_trace_bus <= _PROC_TB_LAST_PROC_TARGET)
{
return fapi2::TARGET_TYPE_PROC_CHIP;
}
else if (i_trace_bus <= _PROC_TB_LAST_OBUS_TARGET)
{
return fapi2::TARGET_TYPE_OBUS;
}
else if (i_trace_bus <= _PROC_TB_LAST_MC_TARGET)
{
return fapi2::TARGET_TYPE_MCBIST;
}
else if (i_trace_bus <= _PROC_TB_LAST_EX_TARGET)
{
return fapi2::TARGET_TYPE_EX;
}
else
{
return fapi2::TARGET_TYPE_CORE;
}
}
//------------------------------------------------------------------------------
// Function prototype
//------------------------------------------------------------------------------
/**
* @brief Retrieve trace array data from selected trace array via SCOM,
* optionally performing trace stop (prior to dump) and/or
* trace restart (after dump)
*
* @param i_target Chip or chiplet target. The necessary target type can be
* queried through proc_gettracearray_target_type().
* @param i_args Argument structure with additional parameters
* @param o_ta_data Trace array data. Will contain all trace entries read
* from the array concatenated, starting with the oldest trace
* entry and ending with the newest.
* @return FAPI2_RC_SUCCESS
* if trace array dump sequence completes successfully,
* RC_PROC_GETTRACEARRAY_INVALID_BUS
* if an invalid trace bus ID has been requested
* RC_PROC_GETTRACEARRAY_INVALID_TARGET
* if the supplied target type does not match the requested trace bus
* RC_PROC_GETTRACEARRAY_CORE_NOT_DUMPABLE
* if a core trace array has been requested but the chip's core
* is not dumpable via SCOM -> use fastarray instead
* RC_PROC_GETTRACEARRAY_TRACE_RUNNING
* if trace array is running when dump collection is attempted,
* RC_PROC_GETTRACEARRAY_TRACE_MUX_INCORRECT
* if the primary trace mux is not set up to trace the requested bus,
* else FAPI getscom/putscom return code for failing operation
*/
fapi2::ReturnCode p9_proc_gettracearray(const fapi2::Target<PROC_GETTRACEARRAY_TARGET_TYPES>& i_target,
const proc_gettracearray_args& i_args,
fapi2::variable_buffer& o_ta_data);
} // extern "C"
#endif // _PROC_GETTRACEARRAY_H_
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