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#ifndef __PPE_COMMON_H__
#define __PPE_COMMON_H__
//-----------------------------------------------------------------------------
// *! (C) Copyright International Business Machines Corp. 2014
// *! All Rights Reserved -- Property of IBM
// *! *** IBM Confidential ***
//-----------------------------------------------------------------------------
/// \file ppe_common.h
/// \brief Common header for PPE
///
/// This header is maintained as part of the PK port for PPE, but needs to be
/// physically present in the PMX area to allow dropping PMX code as a whole
/// to other teams.
// -*- WARNING: This file is maintained as part of PK. Do not edit in -*-
// -*- the PMX area as your edits will be lost. -*-
#ifndef __ASSEMBLER__
#include <stdint.h>
#endif
/// This constant is used to define the size of the table of interrupt handler
/// structures as well as a limit for error checking.
/// NOTE: This can be specific to each PPE type (SBE, PPE, GPE)
#define EXTERNAL_IRQS 64
#ifdef __ASSEMBLER__
/// This macro contains PPE specific code for determining what IRQ caused the
/// external exception handler to be invoked by the PPE
/// Load noncritical status 0 and the handler array base address. Check
/// for interrupts pending in status register 0 while the IRQ is
/// computed. The IRQ is expected to be stored in r3.
.macro hwmacro_get_ext_irq
#_lwzi %r4, %r4, OCB_ONISR0
cntlzw %r3, %r4
cmpwible %r3, 31, external_irq_found #branch if irq is lt or eq to 31
## No IRQ pending in interrupt set 0. Try set 1.
#_lwzi %r4, %r4, OCB_ONISR1
cntlzw %r3, %r4
addi %r3, %r3, 32
.endm
/// Redirect the .hwmacro_irq_cfg_bitmaps macro to call our ppe specific implementation
/// This is called from the ppe42_exceptions.S file.
/// NOTE: The standalone version of PPE doesn't support external interrupts so this
/// does nothing.
.macro .hwmacro_irq_cfg_bitmaps
.endm
#endif /* __ASSEMBLER__ */
#endif /* __PPE_COMMON_H__ */
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