//==========================================================================
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//==========================================================================
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//
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//
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// caches.c
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// caches.c
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//
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//
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// RedBoot cache control functions
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// RedBoot cache control functions
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//
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//
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//==========================================================================
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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// Copyright (C) 2002 Gary Thomas
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// Copyright (C) 2002 Gary Thomas
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//
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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// for more details.
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//
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//
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// You should have received a copy of the GNU General Public License along
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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//
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// As a special exception, if other files instantiate templates or use macros
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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// in accordance with section (3) of the GNU General Public License.
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//
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//
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// This exception does not invalidate any other reasons why a work based on
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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// this file might be covered by the GNU General Public License.
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//
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//#####DESCRIPTIONBEGIN####
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//
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//
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// Author(s): gthomas
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// Author(s): gthomas
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// Contributors: gthomas
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// Contributors: gthomas
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// Date: 2002-08-06
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// Date: 2002-08-06
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// Purpose:
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// Purpose:
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// Description:
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// Description:
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//
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//
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// This code is part of RedBoot (tm).
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// This code is part of RedBoot (tm).
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//
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//
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//####DESCRIPTIONEND####
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//####DESCRIPTIONEND####
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//
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//
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//==========================================================================
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//==========================================================================
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#include <redboot.h>
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#include <redboot.h>
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#include <cyg/hal/hal_arch.h>
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#include <cyg/hal/hal_arch.h>
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#include <cyg/hal/hal_intr.h>
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#include <cyg/hal/hal_intr.h>
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#include <cyg/hal/hal_cache.h>
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#include <cyg/hal/hal_cache.h>
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RedBoot_cmd("cache",
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RedBoot_cmd("cache",
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"Manage machine caches",
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"Manage machine caches",
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"[ON | OFF]",
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"[ON | OFF]",
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do_caches
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do_caches
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);
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);
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void
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void
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do_caches(int argc, char *argv[])
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do_caches(int argc, char *argv[])
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{
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{
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unsigned long oldints;
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unsigned long oldints;
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int dcache_on=0, icache_on=0;
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int dcache_on=0, icache_on=0;
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|
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if (argc == 2) {
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if (argc == 2) {
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if (strcasecmp(argv[1], "on") == 0) {
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if (strcasecmp(argv[1], "on") == 0) {
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_ICACHE_ENABLE();
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HAL_ICACHE_ENABLE();
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HAL_DCACHE_ENABLE();
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HAL_DCACHE_ENABLE();
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HAL_RESTORE_INTERRUPTS(oldints);
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HAL_RESTORE_INTERRUPTS(oldints);
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} else if (strcasecmp(argv[1], "off") == 0) {
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} else if (strcasecmp(argv[1], "off") == 0) {
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DCACHE_SYNC();
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HAL_DCACHE_SYNC();
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HAL_ICACHE_DISABLE();
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HAL_ICACHE_DISABLE();
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HAL_DCACHE_DISABLE();
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HAL_DCACHE_DISABLE();
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HAL_DCACHE_SYNC();
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HAL_DCACHE_SYNC();
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HAL_ICACHE_INVALIDATE_ALL();
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HAL_ICACHE_INVALIDATE_ALL();
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HAL_DCACHE_INVALIDATE_ALL();
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HAL_DCACHE_INVALIDATE_ALL();
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HAL_RESTORE_INTERRUPTS(oldints);
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HAL_RESTORE_INTERRUPTS(oldints);
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} else {
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} else {
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diag_printf("Invalid cache mode: %s\n", argv[1]);
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diag_printf("Invalid cache mode: %s\n", argv[1]);
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}
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}
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} else {
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} else {
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#ifdef HAL_DCACHE_IS_ENABLED
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#ifdef HAL_DCACHE_IS_ENABLED
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HAL_DCACHE_IS_ENABLED(dcache_on);
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HAL_DCACHE_IS_ENABLED(dcache_on);
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#endif
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#endif
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#ifdef HAL_ICACHE_IS_ENABLED
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#ifdef HAL_ICACHE_IS_ENABLED
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HAL_ICACHE_IS_ENABLED(icache_on);
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HAL_ICACHE_IS_ENABLED(icache_on);
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#endif
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#endif
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diag_printf("Data cache: %s, Instruction cache: %s\n",
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diag_printf("Data cache: %s, Instruction cache: %s\n",
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dcache_on?"On":"Off", icache_on?"On":"Off");
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dcache_on?"On":"Off", icache_on?"On":"Off");
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}
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}
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}
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}
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