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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/trace/tracedaemon.H $ */
/* */
/* 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 otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* Origin: 30 */
/* */
/* IBM_PROLOG_END_TAG */
#ifndef __TRACE_DAEMON_H
#define __TRACE_DAEMON_H
#include <sys/msg.h>
#include <targeting/common/target.H>
namespace TRACE
{
/** @class TraceDaemon
* @brief Encapsulates the daemon functionality of trace.
*
* The main-line trace paths can send messages to this code to request
* actions, such as buffer offload (by mailbox or signalling a scratch
* register), to be done or (TODO) the FSP can send messages to it.
*/
class TraceDaemon
{
public:
/** Default Constructor
*
* Initializes class and starts daemon thread.
*/
TraceDaemon();
/** Default Destructor
*
* Shuts down daemon thread and releases mailbox queue.
*/
~TraceDaemon();
/** Message types supported by the trace daemon. */
enum SUPPORTED_MSG_TYPES
{
UPDATE_SCRATCH_REG, //< Update cont-trace scratch reg.
SEND_TRACE_BUFFER, //< Send buffer to FSP.
DAEMON_SHUTDOWN, //< Shutdown daemon thread.
};
// Make trace class a friend so it can get the message queue.
friend class Trace;
protected:
/** Message Queue */
msg_q_t iv_msgQ;
private:
/** Target for master processor */
TARGETING::Target* iv_pMaster;
/** SCOM address of scratch register. */
static const uint32_t MB_SCRATCH_REGISTER_0 = 0x00050038;
/** @brief Function to start daemon thread (using task_create).
* @param[in] Pointer to self.
*/
static void* start(void*);
/** @brief Main daemon loop. */
void run();
/** @brief Update a scratch register with the desired value.
* @param[in] i_value - Value to write to scratch register.
*/
void updateScratchReg(uint64_t i_value);
};
};
#endif
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