gem5/dev/alpha_access.h
Nathan Binkert 318e0c93ed add support for simple character input via the system console
dev/alpha_access.h:
    -  use our standard types instead of this extra typedef
    -  advance the ALPHA_ACCESS version since the interface
    has changed.  *this means you need a new console binary*
    -  shuffle a couple things around to pack the data structure
    a bit better
    -  add a placeholder for character input
dev/alpha_console.cc:
    Clean up the read code path a bit and add support for character
    input via the console

    Clean up the write path and use a switch instead of a bunch of
    if statements

--HG--
extra : convert_revision : a1a5bc8fed9ec9c4c46548fdf79604661668b81a
2003-12-22 17:51:14 -05:00

81 lines
2.8 KiB
C++

/*
* Copyright (c) 2003 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) /* CH++*/
#ifndef CONSOLE
#include <ostream>
#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__