sam-t2/sam/cpus/vonk/ss/lib/cpu/src/SS_Types.h

/*
* ========== Copyright Header Begin ==========================================
*
* OpenSPARC T2 Processor File: SS_Types.h
* Copyright (c) 2006 Sun Microsystems, Inc.  All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES.
*
* The above named program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License version 2 as published by the Free Software Foundation.
*
* The above named program is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ========== Copyright Header End ============================================
*/
#ifndef __SS_Types_h__
#define __SS_Types_h__

#include "BL_Types.h"

// ptr_ofs() is used in the decode functions to get the offset from the
// strand pointer to a particular member, e.g. irf[rd] etc. Keep the
// result type an int32_t as the result is stored in a int16_t variable

#define ptr_ofs(type,member)    int32_t((char*)&((type*)0)->member - (char*)0)

// For faster indexing into an array of pointers ... the CC compiler ain't that
// smart and produces unnecesary shift right (index) and shift left (index * size)

#define ptr_sft(s)              ((s) - ((sizeof(void*) == 4) ? 2 : 3))
#define ptr_msk(m)              ((m) << ((sizeof(void*) == 4) ? 2 : 3))

// Some very often used data types

typedef  int64_t SS_Vaddr;      // VA's are signed, see VA hole implementation in N1, N2, etc.
typedef uint64_t SS_Paddr;
typedef uint16_t SS_Context;
typedef uint32_t SS_OpcWord;

const SS_Vaddr SS_VADDR_MIN = (SS_Vaddr(1) << 63);
const SS_Vaddr SS_VADDR_MAX = ~SS_VADDR_MIN;

class SS_Strand;
class SS_Instr;
class SS_Tte;

#include "SS_Trap.h"

extern "C" typedef SS_Vaddr (*SS_Decode)(  SS_Vaddr, SS_Vaddr, SS_Strand*, SS_Instr*, SS_OpcWord );
extern "C" typedef SS_Vaddr (*SS_Execute)( SS_Vaddr, SS_Vaddr, SS_Strand*, SS_Instr* );
extern "C" typedef SS_Vaddr (*SS_Memop)(   SS_Vaddr, SS_Vaddr, SS_Strand*, SS_Instr*, SS_Vaddr, SS_Tte* );

// Irf Ras error detection function for source regs
extern "C" typedef SS_Vaddr (*SS_RasIrfSrc)( SS_Vaddr, SS_Vaddr, SS_Strand*, SS_Instr*, int);
// Irf Ras error injection function for dest regs
extern "C" typedef SS_Vaddr (*SS_RasIrfDst)( SS_Vaddr, SS_Vaddr, SS_Strand*, SS_Instr*, int);

// Single precision Frf Ras error detection function for source regs
extern "C" typedef SS_Vaddr (*SS_RasFrfSrc)( SS_Vaddr, SS_Vaddr, SS_Strand*, SS_Instr*, int);
// Single precision Frf Ras error injection function for dest regs
extern "C" typedef SS_Vaddr (*SS_RasFrfDst)( SS_Vaddr, SS_Vaddr, SS_Strand*, SS_Instr*, int);

// Double precision Frf Ras error detection function for source regs
extern "C" typedef SS_Vaddr (*SS_RasDrfSrc)( SS_Vaddr, SS_Vaddr, SS_Strand*, SS_Instr*, int);
// Double  precision Frf Ras error injection function for dest regs
extern "C" typedef SS_Vaddr (*SS_RasDrfDst)( SS_Vaddr, SS_Vaddr, SS_Strand*, SS_Instr*, int);


inline void *ss_malloc(size_t size)
{
  void* ptr = malloc(size);
  //if (ptr == 0)
  //{
    //perror("malloc");
    //exit(-1);
  //}
  return ptr;
}

inline void* ss_memalign(size_t alignment, size_t size)
{
  void* ptr = memalign(alignment,size);
  //if (ptr == 0)
  //{
    //perror("memalign");
    //exit(-1);
  //}
  return ptr;
}

// Unless SS_PRAY_MODE is #defined, these macros provide a degree of
// type safely if downcasting from a SS_Node* (or SS_Strand*).  They
// are especially useful in ASI st64/ld64 routines.
#ifdef SS_PRAY_MODE
#define SS_NODE_CAST(T,P)       (T)(P)
#define SS_STRAND_CAST(T,P)     (T)(P)
#else /* SS_PRAY_MODE */
#define SS_NODE_CAST(T,P)       dynamic_cast<T>(P)
#define SS_STRAND_CAST(T,P)     (T)((*(uint64_t*)(P))!=0?0:(P))
#endif /* SS_PRAY_MODE */

#endif