gem5/src/arch/sparc/miscregs.hh
Andreas Sandberg a3d3eb0ff7 sparc: Fixup bit ordering in the PSTATE bit union
The order of the MSB and LSB bit of the mm field in the PSTATE union
is wrong. Any access to this field will currently be ignored and reads
will always return zero. This patch fixes the ordering so it is <MSB,
LSB> instead of <LSB, MSB>.
2014-08-26 10:13:23 -04:00

163 lines
4.5 KiB
C++

/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
* Ali Saidi
*/
#ifndef __ARCH_SPARC_MISCREGS_HH__
#define __ARCH_SPARC_MISCREGS_HH__
#include "base/bitunion.hh"
#include "base/types.hh"
namespace SparcISA
{
enum MiscRegIndex
{
/** Ancillary State Registers */
// MISCREG_Y,
// MISCREG_CCR,
MISCREG_ASI,
MISCREG_TICK,
MISCREG_FPRS,
MISCREG_PCR,
MISCREG_PIC,
MISCREG_GSR,
MISCREG_SOFTINT_SET,
MISCREG_SOFTINT_CLR,
MISCREG_SOFTINT, /* 10 */
MISCREG_TICK_CMPR,
MISCREG_STICK,
MISCREG_STICK_CMPR,
/** Privilged Registers */
MISCREG_TPC,
MISCREG_TNPC,
MISCREG_TSTATE,
MISCREG_TT,
MISCREG_PRIVTICK,
MISCREG_TBA,
MISCREG_PSTATE, /* 20 */
MISCREG_TL,
MISCREG_PIL,
MISCREG_CWP,
// MISCREG_CANSAVE,
// MISCREG_CANRESTORE,
// MISCREG_CLEANWIN,
// MISCREG_OTHERWIN,
// MISCREG_WSTATE,
MISCREG_GL,
/** Hyper privileged registers */
MISCREG_HPSTATE, /* 30 */
MISCREG_HTSTATE,
MISCREG_HINTP,
MISCREG_HTBA,
MISCREG_HVER,
MISCREG_STRAND_STS_REG,
MISCREG_HSTICK_CMPR,
/** Floating Point Status Register */
MISCREG_FSR,
/** MMU Internal Registers */
MISCREG_MMU_P_CONTEXT,
MISCREG_MMU_S_CONTEXT, /* 40 */
MISCREG_MMU_PART_ID,
MISCREG_MMU_LSU_CTRL,
/** Scratchpad regiscers **/
MISCREG_SCRATCHPAD_R0, /* 60 */
MISCREG_SCRATCHPAD_R1,
MISCREG_SCRATCHPAD_R2,
MISCREG_SCRATCHPAD_R3,
MISCREG_SCRATCHPAD_R4,
MISCREG_SCRATCHPAD_R5,
MISCREG_SCRATCHPAD_R6,
MISCREG_SCRATCHPAD_R7,
/* CPU Queue Registers */
MISCREG_QUEUE_CPU_MONDO_HEAD,
MISCREG_QUEUE_CPU_MONDO_TAIL,
MISCREG_QUEUE_DEV_MONDO_HEAD, /* 70 */
MISCREG_QUEUE_DEV_MONDO_TAIL,
MISCREG_QUEUE_RES_ERROR_HEAD,
MISCREG_QUEUE_RES_ERROR_TAIL,
MISCREG_QUEUE_NRES_ERROR_HEAD,
MISCREG_QUEUE_NRES_ERROR_TAIL,
/* All the data for the TLB packed up in one register. */
MISCREG_TLB_DATA,
MISCREG_NUMMISCREGS
};
BitUnion64(HPSTATE)
Bitfield<0> tlz;
Bitfield<2> hpriv;
Bitfield<5> red;
Bitfield<10> ibe;
Bitfield<11> id; // this impl. dependent (id) field m
EndBitUnion(HPSTATE)
BitUnion16(PSTATE)
Bitfield<1> ie;
Bitfield<2> priv;
Bitfield<3> am;
Bitfield<4> pef;
Bitfield<7, 6> mm;
Bitfield<8> tle;
Bitfield<9> cle;
Bitfield<10> pid0;
Bitfield<11> pid1;
EndBitUnion(PSTATE)
struct STS
{
const static int st_idle = 0x00;
const static int st_wait = 0x01;
const static int st_halt = 0x02;
const static int st_run = 0x05;
const static int st_spec_run = 0x07;
const static int st_spec_rdy = 0x13;
const static int st_ready = 0x19;
const static int active = 0x01;
const static int speculative = 0x04;
const static int shft_id = 8;
const static int shft_fsm0 = 31;
const static int shft_fsm1 = 26;
const static int shft_fsm2 = 21;
const static int shft_fsm3 = 16;
};
const int NumMiscRegs = MISCREG_NUMMISCREGS;
}
#endif