#ifndef __STD_COMMON_H__
#define __STD_COMMON_H__

//-----------------------------------------------------------------------------
// *! (C) Copyright International Business Machines Corp. 2014
// *! All Rights Reserved -- Property of IBM
// *! *** IBM Confidential ***
//-----------------------------------------------------------------------------

/// \file cme_common.h
/// \brief Common header for standard PPE's
///

#ifndef __ASSEMBLER__
#include <stdint.h>
#endif

//#include "cmehw_interrupts.h"
#include "pk.h"
#include "std_irq_config.h"

#ifdef __ASSEMBLER__
/// This macro contains standard PPE code for determining what IRQ caused the
/// external exception handler to be invoked by the PPE

/// Check for interrupts pending in the interrupt status register while the IRQ
/// is computed.  The IRQ is expected to be stored in r4. If no IRQ is
/// pending then load the phantom irq # (EXTERNAL_IRQS).
/// 
/// r1, r2, r3, and r13 must not be modified.  All other registers may be used.
///
    .macro hwmacro_get_ext_irq
        
        _lvdg       d5, STD_LCL_EISTR    #load the 64bit interrupt status into d5
        cntlzw      r4, r5
        cmpwible    r4, 31, call_external_irq_handler   #branch if irq is lt or eq to 31
        
        ## No IRQ pending in r5.  Try r6.
        ## Note: irq # will be 64 (phantom irq) if no bits were set in either register
        
        cntlzw  r4, r6
        addi    r4, r4, 32

    .endm

/// Redirect the .hwmacro_irq_cfg_bitmaps macro to call our standard PPE implementation
/// This is called from the ppe42_exceptions.S file.
    .macro .hwmacro_irq_cfg_bitmaps
        .std_irq_cfg_bitmaps
    .endm

#endif /* __ASSEMBLER__ */

#endif  /* __STD_COMMON_H__ */