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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/hwpf/plat/fapiPlatUtil.C $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* COPYRIGHT International Business Machines Corp. 2011,2013 */
/* */
/* p1 */
/* */
/* Object Code Only (OCO) source materials */
/* Licensed Internal Code Source Materials */
/* IBM HostBoot Licensed Internal Code */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* Origin: 30 */
/* */
/* IBM_PROLOG_END_TAG */
/**
* @file fapiPlatUtil.C
*
* @brief Implements the fapiUtil.H utility functions.
*
* Note that platform code must provide the implementation.
*/
#include <assert.h>
#include <fapi.H>
#include <trace/interface.H>
#include <sys/time.h>
#include <errl/errlmanager.H>
#include <fapiPlatHwpInvoker.H>
#include <vfs/vfs.H>
#include <initservice/initsvcbreakpoint.H>
//******************************************************************************
// Trace descriptors
//******************************************************************************
trace_desc_t* g_fapiTd;
trace_desc_t* g_fapiImpTd;
trace_desc_t* g_fapiScanTd;
//******************************************************************************
// Global TracInit objects. Construction will initialize the trace buffer
//******************************************************************************
TRAC_INIT(&g_fapiTd, FAPI_TRACE_NAME, 2*KILOBYTE);
TRAC_INIT(&g_fapiImpTd, FAPI_IMP_TRACE_NAME, 2*KILOBYTE);
TRAC_INIT(&g_fapiScanTd, FAPI_SCAN_TRACE_NAME, 4*KILOBYTE);
extern "C"
{
//******************************************************************************
// fapiAssert
//******************************************************************************
void fapiAssert(bool i_expression)
{
assert(i_expression);
}
//******************************************************************************
// fapiDelay
//
// At the present time, VBU runs hostboot without a Simics
// front end. If a HW procedure wants to delay, we just make the
// syscall nanosleep(). In the syscall, the kernel will continue to consume
// clock cycles as it looks for a runnable task. When the sleep time expires,
// the calling task will resume running.
//
// In the future there could be a Simics front end to hostboot VBU. Then
// a possible implementation will be to use the Simics magic instruction
// to trigger a Simics hap. The Simics hap handler can call the simdispatcher
// client/server API to tell the Awan to advance some number of cycles.
//
// Monte 4 Aug 2011
//******************************************************************************
fapi::ReturnCode fapiDelay(uint64_t i_nanoSeconds, uint64_t i_simCycles)
{
FAPI_DBG( INFO_MRK "delay %lld nanosec", i_nanoSeconds );
nanosleep( 0, i_nanoSeconds );
return fapi::FAPI_RC_SUCCESS;
}
//******************************************************************************
// fapiLogError
//******************************************************************************
void fapiLogError(fapi::ReturnCode & io_rc)
{
errlHndl_t l_pError = NULL;
bool l_unitTestError = false;
FAPI_ERR("fapiLogError: logging error");
if (fapi::RC_TEST_ERROR_A == static_cast<uint32_t>(io_rc))
{
l_unitTestError = true;
}
// Convert the return code to an error log.
// This will set the return code to FAPI_RC_SUCCESS and clear any PLAT Data,
// HWP FFDC data, and Error Target associated with it.
l_pError = fapiRcToErrl(io_rc);
// Commit the error log. This will delete the error log and set the handle
// to NULL.
if (l_unitTestError)
{
errlCommit(l_pError, CXXTEST_COMP_ID);
}
else
{
errlCommit(l_pError, HWPF_COMP_ID);
}
}
//****************************************************************************
// platform-level implementation
bool platIsScanTraceEnabled()
{
// TODO: Get the answer from g_fapiScanTd conditional trace buffer. Camvan
// has not pushed the code yet.
return 1;
}
//****************************************************************************
// platform-level implementation
void platSetScanTrace(bool i_enable)
{
// TODO: enable or disable scan trace via the SCAN trace buffer. Camvan
// has not pushed the code yet.
return;
}
//******************************************************************************
// fapiLoadInitFile
//******************************************************************************
fapi::ReturnCode fapiLoadInitFile(const fapi::Target & i_Target,
const char * i_file, const char *& o_addr, size_t & o_size)
{
fapi::ReturnCode l_rc = fapi::FAPI_RC_SUCCESS;
errlHndl_t l_pError = NULL;
o_size = 0;
o_addr = NULL;
FAPI_INF("fapiLoadInitFile: %s", i_file);
l_pError = VFS::module_load(i_file);
if(l_pError)
{
// Add the error log pointer as data to the ReturnCode
FAPI_ERR("fapiLoadInitFile: module_load failed");
l_rc.setPlatError(reinterpret_cast<void *> (l_pError));
}
else
{
l_pError = VFS::module_address(i_file, o_addr, o_size);
if(l_pError)
{
// Add the error log pointer as data to the ReturnCode
FAPI_ERR("fapiLoadInitFile: module_address failed");
l_rc.setPlatError(reinterpret_cast<void *> (l_pError));
}
else
{
FAPI_DBG("fapiLoadInitFile: data module addr = %p, size = %ld",
o_addr, o_size);
FAPI_DBG("fapiLoadInitFile: *addr = 0x%llX",
*(reinterpret_cast<const uint64_t*>(o_addr)));
}
}
return l_rc;
}
//******************************************************************************
// fapiUnloadInitFile
//******************************************************************************
fapi::ReturnCode fapiUnloadInitFile(const char * i_file, const char *& io_addr,
size_t & io_size)
{
fapi::ReturnCode l_rc = fapi::FAPI_RC_SUCCESS;
errlHndl_t l_pError = NULL;
FAPI_INF("fapiUnloadInitFile: %s", i_file);
l_pError = VFS::module_unload(i_file);
if(l_pError)
{
// Add the error log pointer as data to the ReturnCode
FAPI_ERR("fapiUnloadInitFile: module_unload failed %s", i_file);
l_rc.setPlatError(reinterpret_cast<void *> (l_pError));
}
else
{
io_addr = NULL;
io_size = 0;
}
return l_rc;
}
//******************************************************************************
// fapiBreakPoint
//******************************************************************************
void fapiBreakPoint( uint32_t i_info)
{
INITSERVICE::iStepBreakPoint( i_info );
}
//******************************************************************************
// fapiSpecialWakeup
//******************************************************************************
fapi::ReturnCode fapiSpecialWakeup(const fapi::Target & i_target,
const bool i_enable)
{
// On Hostboot, processor cores cannot sleep so return success to the
// fapiSpecialWakeup enable/disable calls
return fapi::FAPI_RC_SUCCESS;
}
}
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