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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/include/kernel/doorbell.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2018 */
/* [+] 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 */
#ifndef __KERNEL_DOORBELL_H
#define __KERNEL_DOORBELL_H
/** doorbell_broadcast
*
* Broadcast a doorbell exception to all threads on the same core.
*/
void doorbell_broadcast();
/** doorbell_clear
*
* Clears a pending doorbell from the executing thread, so that the
* exception is no longer asserted.
*/
void doorbell_clear();
/** Send a doorbell exception to the given pir
*
* @param i_pir - PIR to send doorbell exception to
*/
void doorbell_send(uint64_t i_pir);
/** Initiate a thread/core wakeup using a doorbell
*
* @param i_pir - PIR to send doorbell to wakeup
*/
void send_doorbell_wakeup(uint64_t i_pir);
/** Send an IPC message using a doorbell
*
* @param i_pir - PIR to send IPC message to
*/
void send_doorbell_ipc(uint64_t i_pir);
/** Send a doorbell and also restore the thread's timebase
*
* @param i_pir - PIR to send doorbell to wakeup
* @param i_tb - Timebase value to restore during wakeup
*/
void send_doorbell_restore_tb(uint64_t i_pir, uint64_t i_tb);
enum
{
_DOORBELL_MSG_TYPE = 0x0000000028000000, /// Comes from the ISA.
};
#endif
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