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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/ppe/pk/kernel/pk_core.c $ */
/* */
/* OpenPOWER sbe Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2016 */
/* [+] 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 pk_core.c
/// \brief Core routines for the PK kernel.
///
/// The entry points in this file are routines that are expected to be needed
/// at runtime by all PK applications. This file also serves as a place for
/// kernel global variables to be realized.
#define __PK_CORE_C__
#include "pk.h"
#if !PK_TIMER_SUPPORT
/// If there is no timer support, then any call of the timer interrupt handler
/// is considered a fatal error.
void
__pk_timer_handler()
{
PK_PANIC(PK_NO_TIMER_SUPPORT);
}
#endif /* PK_TIMER_SUPPORT */
/// Initialize an PkDeque sentinel node
///
/// \param deque The sentinel node of the deque
///
/// PK has no way of knowing whether the \a deque is currently in use, so
/// this API must only be called on unitialized or otherwise unused sentinel
/// nodes.
///
/// \retval 0 success
///
/// \retval -PK_INVALID_DEQUE_SENTINEL The \a deque pointer was null
int
pk_deque_sentinel_create(PkDeque* deque)
{
if (PK_ERROR_CHECK_API)
{
PK_ERROR_IF(deque == 0, PK_INVALID_DEQUE_SENTINEL);
}
deque->next = deque->previous = deque;
return 0;
}
/// Initialize an PkDeque element
///
/// \param element Typically the PkDeque object of a queable structure
///
/// PK has no way of knowing whether the \a element is currently in use, so
/// this API must only be called on unitialized or otherwise unused deque
/// elements.
///
/// \retval 0 success
///
/// \retval -PK_INVALID_DEQUE_ELEMENT The \a element pointer was null
int
pk_deque_element_create(PkDeque* element)
{
if (PK_ERROR_CHECK_API)
{
PK_ERROR_IF(element == 0, PK_INVALID_DEQUE_ELEMENT);
}
element->next = 0;
return 0;
}
#undef __PK_CORE_C__
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