| 1 |
786 |
skrzyp |
//==========================================================================
|
| 2 |
|
|
//
|
| 3 |
|
|
// caches.c
|
| 4 |
|
|
//
|
| 5 |
|
|
// RedBoot cache control functions
|
| 6 |
|
|
//
|
| 7 |
|
|
//==========================================================================
|
| 8 |
|
|
// ####ECOSGPLCOPYRIGHTBEGIN####
|
| 9 |
|
|
// -------------------------------------------
|
| 10 |
|
|
// This file is part of eCos, the Embedded Configurable Operating System.
|
| 11 |
|
|
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
|
| 12 |
|
|
//
|
| 13 |
|
|
// eCos is free software; you can redistribute it and/or modify it under
|
| 14 |
|
|
// the terms of the GNU General Public License as published by the Free
|
| 15 |
|
|
// Software Foundation; either version 2 or (at your option) any later
|
| 16 |
|
|
// version.
|
| 17 |
|
|
//
|
| 18 |
|
|
// eCos is distributed in the hope that it will be useful, but WITHOUT
|
| 19 |
|
|
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
| 20 |
|
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
| 21 |
|
|
// for more details.
|
| 22 |
|
|
//
|
| 23 |
|
|
// You should have received a copy of the GNU General Public License
|
| 24 |
|
|
// along with eCos; if not, write to the Free Software Foundation, Inc.,
|
| 25 |
|
|
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
| 26 |
|
|
//
|
| 27 |
|
|
// As a special exception, if other files instantiate templates or use
|
| 28 |
|
|
// macros or inline functions from this file, or you compile this file
|
| 29 |
|
|
// and link it with other works to produce a work based on this file,
|
| 30 |
|
|
// this file does not by itself cause the resulting work to be covered by
|
| 31 |
|
|
// the GNU General Public License. However the source code for this file
|
| 32 |
|
|
// must still be made available in accordance with section (3) of the GNU
|
| 33 |
|
|
// General Public License v2.
|
| 34 |
|
|
//
|
| 35 |
|
|
// This exception does not invalidate any other reasons why a work based
|
| 36 |
|
|
// on this file might be covered by the GNU General Public License.
|
| 37 |
|
|
// -------------------------------------------
|
| 38 |
|
|
// ####ECOSGPLCOPYRIGHTEND####
|
| 39 |
|
|
//==========================================================================
|
| 40 |
|
|
//#####DESCRIPTIONBEGIN####
|
| 41 |
|
|
//
|
| 42 |
|
|
// Author(s): gthomas
|
| 43 |
|
|
// Contributors: gthomas
|
| 44 |
|
|
// Date: 2002-08-06
|
| 45 |
|
|
// Purpose:
|
| 46 |
|
|
// Description:
|
| 47 |
|
|
//
|
| 48 |
|
|
// This code is part of RedBoot (tm).
|
| 49 |
|
|
//
|
| 50 |
|
|
//####DESCRIPTIONEND####
|
| 51 |
|
|
//
|
| 52 |
|
|
//==========================================================================
|
| 53 |
|
|
|
| 54 |
|
|
#include <redboot.h>
|
| 55 |
|
|
#include <cyg/hal/hal_arch.h>
|
| 56 |
|
|
#include <cyg/hal/hal_intr.h>
|
| 57 |
|
|
#include <cyg/hal/hal_cache.h>
|
| 58 |
|
|
|
| 59 |
|
|
RedBoot_cmd("cache",
|
| 60 |
|
|
"Manage machine caches",
|
| 61 |
|
|
"[ON | OFF]",
|
| 62 |
|
|
do_caches
|
| 63 |
|
|
);
|
| 64 |
|
|
|
| 65 |
|
|
void
|
| 66 |
|
|
do_caches(int argc, char *argv[])
|
| 67 |
|
|
{
|
| 68 |
|
|
unsigned long oldints;
|
| 69 |
|
|
int dcache_on=0, icache_on=0;
|
| 70 |
|
|
|
| 71 |
|
|
if (argc == 2) {
|
| 72 |
|
|
if (strcasecmp(argv[1], "on") == 0) {
|
| 73 |
|
|
HAL_DISABLE_INTERRUPTS(oldints);
|
| 74 |
|
|
HAL_ICACHE_ENABLE();
|
| 75 |
|
|
HAL_DCACHE_ENABLE();
|
| 76 |
|
|
HAL_RESTORE_INTERRUPTS(oldints);
|
| 77 |
|
|
} else if (strcasecmp(argv[1], "off") == 0) {
|
| 78 |
|
|
HAL_DISABLE_INTERRUPTS(oldints);
|
| 79 |
|
|
HAL_DCACHE_SYNC();
|
| 80 |
|
|
HAL_ICACHE_DISABLE();
|
| 81 |
|
|
HAL_DCACHE_DISABLE();
|
| 82 |
|
|
HAL_DCACHE_SYNC();
|
| 83 |
|
|
HAL_ICACHE_INVALIDATE_ALL();
|
| 84 |
|
|
HAL_DCACHE_INVALIDATE_ALL();
|
| 85 |
|
|
HAL_RESTORE_INTERRUPTS(oldints);
|
| 86 |
|
|
} else {
|
| 87 |
|
|
diag_printf("Invalid cache mode: %s\n", argv[1]);
|
| 88 |
|
|
}
|
| 89 |
|
|
} else {
|
| 90 |
|
|
#ifdef HAL_DCACHE_IS_ENABLED
|
| 91 |
|
|
HAL_DCACHE_IS_ENABLED(dcache_on);
|
| 92 |
|
|
#endif
|
| 93 |
|
|
#ifdef HAL_ICACHE_IS_ENABLED
|
| 94 |
|
|
HAL_ICACHE_IS_ENABLED(icache_on);
|
| 95 |
|
|
#endif
|
| 96 |
|
|
diag_printf("Data cache: %s, Instruction cache: %s\n",
|
| 97 |
|
|
dcache_on?"On":"Off", icache_on?"On":"Off");
|
| 98 |
|
|
}
|
| 99 |
|
|
}
|
