forked from Imagelibrary/rtems
c173f0581a
The LEON3_IrqCtrl_Adev object is only defined if LEON3_IRQAMP_BASE is not defined. The LEON3_Timer_Adev object is only defined if LEON3_GPTIMER_BASE is not defined. Close #4850.
152 lines
4.1 KiB
C
152 lines
4.1 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup RTEMSBSPsSPARCLEON3
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*
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* @brief This header file provides interfaces used by the interrupt support
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* implementation.
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*/
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/*
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* Copyright (C) 2021 embedded brains GmbH & Co. KG
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LIBBSP_SPARC_LEON3_BSP_IRQIMPL_H
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#define LIBBSP_SPARC_LEON3_BSP_IRQIMPL_H
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#include <rtems.h>
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#include <grlib/irqamp-regs.h>
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#include <grlib/io.h>
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#include <bspopts.h>
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struct ambapp_dev;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @addtogroup RTEMSBSPsSPARCLEON3
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*
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* @{
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*/
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/**
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* @brief This object provides the index of the boot processor.
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*
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* This object should be read-only after initialization.
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*/
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extern uint32_t LEON3_Cpu_Index;
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/**
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* @brief This lock serializes the interrupt controller access.
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*/
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extern rtems_interrupt_lock LEON3_IrqCtrl_Lock;
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/**
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* @brief Acquires the interrupt controller lock.
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*
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* @param[out] _lock_context is the lock context.
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*/
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#define LEON3_IRQCTRL_ACQUIRE( _lock_context ) \
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rtems_interrupt_lock_acquire( &LEON3_IrqCtrl_Lock, _lock_context )
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/**
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* @brief Releases the interrupt controller lock.
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*
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* @param[in, out] _lock_context is the lock context.
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*/
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#define LEON3_IRQCTRL_RELEASE( _lock_context ) \
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rtems_interrupt_lock_release( &LEON3_IrqCtrl_Lock, _lock_context )
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/**
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* @brief This pointer provides the IRQ(A)MP register block address.
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*/
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#if defined(LEON3_IRQAMP_BASE)
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#define LEON3_IrqCtrl_Regs ((irqamp *) LEON3_IRQAMP_BASE)
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#else
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extern irqamp *LEON3_IrqCtrl_Regs;
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/**
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* @brief This pointer provides the IRQ(A)MP device information block.
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*/
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extern struct ambapp_dev *LEON3_IrqCtrl_Adev;
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#endif
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/**
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* @brief This object provides the interrupt number used to multiplex extended
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* interrupts or is zero if no extended interrupts are available.
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*
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* This object should be read-only after initialization.
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*/
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#if defined(LEON3_IRQAMP_EXTENDED_INTERRUPT)
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#define LEON3_IrqCtrl_EIrq LEON3_IRQAMP_EXTENDED_INTERRUPT
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#else
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extern uint32_t LEON3_IrqCtrl_EIrq;
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#endif
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/**
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* @brief Initializes the interrupt controller for the boot processor.
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*
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* @param[in, out] regs is the IRQ(A)MP register block address.
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*/
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void leon3_ext_irq_init( irqamp *regs );
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/**
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* @brief Acknowledges and maps extended interrupts if this feature is
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* available and the interrupt for extended interrupts is present.
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*
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* @param irq is the standard interrupt number.
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*/
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static inline uint32_t bsp_irq_fixup( uint32_t irq )
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{
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uint32_t eirq;
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uint32_t cpu_self;
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if ( irq != LEON3_IrqCtrl_EIrq ) {
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return irq;
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}
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cpu_self = _LEON3_Get_current_processor();
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eirq = grlib_load_32( &LEON3_IrqCtrl_Regs->pextack[ cpu_self ] );
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eirq = IRQAMP_PEXTACK_EID_4_0_GET( eirq );
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if ( eirq < 16 ) {
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return irq;
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}
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return eirq;
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}
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* LIBBSP_SPARC_LEON3_BSP_IRQIMPL_H */
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