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// IBM_PROLOG_BEGIN_TAG
// This is an automatically generated prolog.
//
// $Source: src/usr/trace/tracedaemon.C $
//
// IBM CONFIDENTIAL
//
// COPYRIGHT International Business Machines Corp. 2012
//
// 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 other-
// wise divested of its trade secrets, irrespective of what has
// been deposited with the U.S. Copyright Office.
//
// Origin: 30
//
// IBM_PROLOG_END
#include "tracedaemon.H"
#include <sys/task.h>
#include <targeting/common/commontargeting.H>
#include <vfs/vfs.H>
#include <devicefw/driverif.H>
#include <errl/errlentry.H>
#include <errl/errlmanager.H>
namespace TRACE
{
TraceDaemon::TraceDaemon() :
iv_pMaster(TARGETING::MASTER_PROCESSOR_CHIP_TARGET_SENTINEL)
{
iv_msgQ = msg_q_create();
task_create(TraceDaemon::start, this);
}
TraceDaemon::~TraceDaemon()
{
// Send message to shutdown daemon thread.
msg_t* l_msg = msg_allocate();
l_msg->type = DAEMON_SHUTDOWN;
msg_sendrecv(iv_msgQ, l_msg);
msg_free(l_msg);
// Release message queue.
msg_q_destroy(iv_msgQ);
}
void TraceDaemon::start(void* i_self)
{
reinterpret_cast<TraceDaemon *>(i_self)->run();
};
void TraceDaemon::run()
{
msg_t* l_msg = NULL;
// Main daemon loop.
while(1)
{
// Get message from client.
l_msg = msg_wait(iv_msgQ);
// Switch based on message type.
switch(l_msg->type)
{
case UPDATE_SCRATCH_REG:
updateScratchReg(l_msg->data[0]);
break;
case SEND_TRACE_BUFFER: // TODO.
// Delete buffer for now.
free(l_msg->extra_data);
break;
case DAEMON_SHUTDOWN:
// Respond to message and exit.
msg_respond(iv_msgQ, l_msg);
task_end();
break;
};
if (msg_is_async(l_msg))
{
// Delete async messages.
msg_free(l_msg);
}
else
{
// Respond to sync messages.
msg_respond(iv_msgQ, l_msg);
}
}
}
void TraceDaemon::updateScratchReg(uint64_t i_value)
{
// Find master processor target.
if (iv_pMaster == TARGETING::MASTER_PROCESSOR_CHIP_TARGET_SENTINEL)
{
if (VFS::module_is_loaded("libtargeting.so") &&
TARGETING::targetService().isInitialized())
{
TARGETING::targetService().masterProcChipTargetHandle(iv_pMaster);
}
}
// Write scratch register to requested value.
size_t l_size = sizeof(uint64_t);
errlHndl_t l_errl = deviceWrite(iv_pMaster, &i_value, l_size,
DEVICE_SCOM_ADDRESS(MB_SCRATCH_REGISTER_0));
if (l_errl)
{
errlCommit(l_errl, HBTRACE_COMP_ID);
}
}
};
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