xref: /gem5/src/dev/alpha/access.h

/*
 * Copyright (c) 2002-2005 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.
 */

#ifndef __ALPHA_ACCESS_H__
#define __ALPHA_ACCESS_H__

/** @file
 * System Console Memory Mapped Register Definition
 */

#define ALPHA_ACCESS_VERSION (1301)

#ifndef CONSOLE
#include <iosfwd>
#include <string>
class Checkpoint;
#endif

// This structure hacked up from simos
struct AlphaAccess
{
    uint32_t	last_offset;		// 00: must be first field
    uint32_t	version;		// 04:
    uint32_t	numCPUs;		// 08:
    uint32_t	intrClockFrequency;	// 0C: Hz
    uint64_t	cpuClock;		// 10: MHz
    uint64_t	mem_size;		// 18:

    // Loaded kernel
    uint64_t	kernStart;		// 20:
    uint64_t	kernEnd;		// 28:
    uint64_t	entryPoint;		// 30:

    // console disk stuff
    uint64_t	diskUnit;		// 38:
    uint64_t	diskCount;		// 40:
    uint64_t	diskPAddr;		// 48:
    uint64_t	diskBlock;		// 50:
    uint64_t	diskOperation;		// 58:

    // console simple output stuff
    uint64_t	outputChar;		// 60: Placeholder for output
    uint64_t	inputChar;		// 68: Placeholder for input

    // MP boot
    uint64_t	bootStrapImpure;	// 70:
    uint32_t	bootStrapCPU;		// 78:
    uint32_t	align2;			// 7C: Dummy placeholder for alignment

#ifndef CONSOLE
    void serialize(std::ostream &os);
    void unserialize(Checkpoint *cp, const std::string &section);
#endif
};

#endif // __ALPHA_ACCESS_H__