1 //==========================================================================
5 // RedBoot cache control functions
7 //==========================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
12 // Copyright (C) 2002 Gary Thomas
14 // eCos is free software; you can redistribute it and/or modify it under
15 // the terms of the GNU General Public License as published by the Free
16 // Software Foundation; either version 2 or (at your option) any later version.
18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
23 // You should have received a copy of the GNU General Public License along
24 // with eCos; if not, write to the Free Software Foundation, Inc.,
25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
27 // As a special exception, if other files instantiate templates or use macros
28 // or inline functions from this file, or you compile this file and link it
29 // with other works to produce a work based on this file, this file does not
30 // by itself cause the resulting work to be covered by the GNU General Public
31 // License. However the source code for this file must still be made available
32 // in accordance with section (3) of the GNU General Public License.
34 // This exception does not invalidate any other reasons why a work based on
35 // this file might be covered by the GNU General Public License.
37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
38 // at http://sources.redhat.com/ecos/ecos-license/
39 // -------------------------------------------
40 //####ECOSGPLCOPYRIGHTEND####
41 //==========================================================================
42 //#####DESCRIPTIONBEGIN####
45 // Contributors: gthomas
50 // This code is part of RedBoot (tm).
52 //####DESCRIPTIONEND####
54 //==========================================================================
57 #include <cyg/hal/hal_arch.h>
58 #include <cyg/hal/hal_intr.h>
59 #include <cyg/hal/hal_cache.h>
62 "Manage machine caches",
68 do_caches(int argc, char *argv[])
70 unsigned long oldints;
71 int dcache_on=0, icache_on=0;
74 if (strcasecmp(argv[1], "on") == 0) {
75 HAL_DISABLE_INTERRUPTS(oldints);
78 HAL_RESTORE_INTERRUPTS(oldints);
79 } else if (strcasecmp(argv[1], "off") == 0) {
80 HAL_DISABLE_INTERRUPTS(oldints);
85 HAL_ICACHE_INVALIDATE_ALL();
86 HAL_DCACHE_INVALIDATE_ALL();
87 HAL_RESTORE_INTERRUPTS(oldints);
89 diag_printf("Invalid cache mode: %s\n", argv[1]);
92 #ifdef HAL_DCACHE_IS_ENABLED
93 HAL_DCACHE_IS_ENABLED(dcache_on);
95 #ifdef HAL_ICACHE_IS_ENABLED
96 HAL_ICACHE_IS_ENABLED(icache_on);
98 diag_printf("Data cache: %s, Instruction cache: %s\n",
99 dcache_on?"On":"Off", icache_on?"On":"Off");