/*=================================================================
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/*=================================================================
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//
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//
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// cache.c
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// cache.c
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//
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//
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// HAL Cache timing test
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// HAL Cache timing test
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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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//
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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): dsm
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// Author(s): dsm
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// Contributors: dsm, nickg
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// Contributors: dsm, nickg
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// Date: 1998-06-18
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// Date: 1998-06-18
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//####DESCRIPTIONEND####
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//####DESCRIPTIONEND####
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*/
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*/
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#include <pkgconf/hal.h>
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#include <pkgconf/hal.h>
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#include <cyg/infra/testcase.h>
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#include <cyg/infra/testcase.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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#include <cyg/hal/hal_intr.h>
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#include <cyg/hal/hal_intr.h>
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#include <cyg/infra/diag.h>
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#include <cyg/infra/diag.h>
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#if defined(HAL_DCACHE_SIZE) && HAL_DCACHE_SIZE != 0
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#if defined(HAL_DCACHE_SIZE) && HAL_DCACHE_SIZE != 0
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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// If the HAL does not supply this, we supply our own version
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// If the HAL does not supply this, we supply our own version
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#ifndef HAL_DCACHE_PURGE_ALL
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#ifndef HAL_DCACHE_PURGE_ALL
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#ifdef HAL_DCACHE_SYNC
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#ifdef HAL_DCACHE_SYNC
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# define HAL_DCACHE_PURGE_ALL() HAL_DCACHE_SYNC()
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# define HAL_DCACHE_PURGE_ALL() HAL_DCACHE_SYNC()
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#else
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#else
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static cyg_uint8 dca[HAL_DCACHE_SIZE + HAL_DCACHE_LINE_SIZE*2];
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static cyg_uint8 dca[HAL_DCACHE_SIZE + HAL_DCACHE_LINE_SIZE*2];
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#define HAL_DCACHE_PURGE_ALL() \
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#define HAL_DCACHE_PURGE_ALL() \
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CYG_MACRO_START \
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CYG_MACRO_START \
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volatile cyg_uint8 *addr = &dca[HAL_DCACHE_LINE_SIZE]; \
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volatile cyg_uint8 *addr = &dca[HAL_DCACHE_LINE_SIZE]; \
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volatile cyg_uint8 tmp = 0; \
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volatile cyg_uint8 tmp = 0; \
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int i; \
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int i; \
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for( i = 0; i < HAL_DCACHE_SIZE; i += HAL_DCACHE_LINE_SIZE ) \
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for( i = 0; i < HAL_DCACHE_SIZE; i += HAL_DCACHE_LINE_SIZE ) \
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{ \
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{ \
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tmp = addr[i]; \
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tmp = addr[i]; \
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} \
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} \
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CYG_MACRO_END
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CYG_MACRO_END
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#endif // HAL_DCACHE_SYNC
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#endif // HAL_DCACHE_SYNC
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#endif // HAL_DCACHE_PURGE_ALL
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#endif // HAL_DCACHE_PURGE_ALL
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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#ifndef MAX_STRIDE
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#ifndef MAX_STRIDE
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#define MAX_STRIDE 64
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#define MAX_STRIDE 64
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#endif
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#endif
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volatile char m[(HAL_DCACHE_SIZE/HAL_DCACHE_LINE_SIZE)*MAX_STRIDE];
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volatile char m[(HAL_DCACHE_SIZE/HAL_DCACHE_LINE_SIZE)*MAX_STRIDE];
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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static void time0(register cyg_uint32 stride)
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static void time0(register cyg_uint32 stride)
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{
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{
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register cyg_uint32 j,k;
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register cyg_uint32 j,k;
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register char c;
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register char c;
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diag_printf("stride=%d\n", stride);
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diag_printf("stride=%d\n", stride);
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k = 0;
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k = 0;
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if ( cyg_test_is_simulator )
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if ( cyg_test_is_simulator )
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k = 3960;
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k = 3960;
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for(; k<4000;k++) {
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for(; k<4000;k++) {
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for(j=0; j<(HAL_DCACHE_SIZE/HAL_DCACHE_LINE_SIZE); j++) {
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for(j=0; j<(HAL_DCACHE_SIZE/HAL_DCACHE_LINE_SIZE); j++) {
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c=m[stride*j];
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c=m[stride*j];
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}
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}
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}
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}
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}
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}
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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void time1(void)
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void time1(void)
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{
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{
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cyg_uint32 i;
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cyg_uint32 i;
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for(i=1; i<=MAX_STRIDE; i+=i) {
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for(i=1; i<=MAX_STRIDE; i+=i) {
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time0(i);
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time0(i);
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}
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}
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}
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}
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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// This test could be improved by counting number of passes possible
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// This test could be improved by counting number of passes possible
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// in a given number of ticks.
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// in a given number of ticks.
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static void entry0( void )
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static void entry0( void )
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{
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{
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register CYG_INTERRUPT_STATE oldints;
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register CYG_INTERRUPT_STATE oldints;
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#ifdef HAL_CACHE_UNIFIED
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#ifdef HAL_CACHE_UNIFIED
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DCACHE_PURGE_ALL(); // rely on above definition
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HAL_DCACHE_PURGE_ALL(); // rely on above definition
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HAL_UCACHE_INVALIDATE_ALL();
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HAL_UCACHE_INVALIDATE_ALL();
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HAL_UCACHE_DISABLE();
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HAL_UCACHE_DISABLE();
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HAL_RESTORE_INTERRUPTS(oldints);
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HAL_RESTORE_INTERRUPTS(oldints);
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CYG_TEST_INFO("Cache off");
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CYG_TEST_INFO("Cache off");
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time1();
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time1();
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DCACHE_PURGE_ALL(); // rely on above definition
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HAL_DCACHE_PURGE_ALL(); // rely on above definition
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HAL_UCACHE_INVALIDATE_ALL();
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HAL_UCACHE_INVALIDATE_ALL();
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HAL_UCACHE_ENABLE();
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HAL_UCACHE_ENABLE();
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HAL_RESTORE_INTERRUPTS(oldints);
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HAL_RESTORE_INTERRUPTS(oldints);
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CYG_TEST_INFO("Cache on");
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CYG_TEST_INFO("Cache on");
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time1();
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time1();
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#else // HAL_CACHE_UNIFIED
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#else // HAL_CACHE_UNIFIED
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DCACHE_PURGE_ALL();
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HAL_DCACHE_PURGE_ALL();
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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_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_RESTORE_INTERRUPTS(oldints);
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HAL_RESTORE_INTERRUPTS(oldints);
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CYG_TEST_INFO("Dcache off Icache off");
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CYG_TEST_INFO("Dcache off Icache off");
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time1();
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time1();
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DCACHE_PURGE_ALL();
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HAL_DCACHE_PURGE_ALL();
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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_ICACHE_DISABLE();
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HAL_ICACHE_DISABLE();
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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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CYG_TEST_INFO("Dcache on Icache off");
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CYG_TEST_INFO("Dcache on Icache off");
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time1();
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time1();
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DCACHE_PURGE_ALL();
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HAL_DCACHE_PURGE_ALL();
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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_ICACHE_ENABLE();
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HAL_ICACHE_ENABLE();
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HAL_DCACHE_DISABLE();
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HAL_DCACHE_DISABLE();
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HAL_RESTORE_INTERRUPTS(oldints);
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HAL_RESTORE_INTERRUPTS(oldints);
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CYG_TEST_INFO("Dcache off Icache on");
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CYG_TEST_INFO("Dcache off Icache on");
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time1();
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time1();
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DCACHE_PURGE_ALL();
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HAL_DCACHE_PURGE_ALL();
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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_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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CYG_TEST_INFO("Dcache on Icache on");
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CYG_TEST_INFO("Dcache on Icache on");
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time1();
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time1();
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DISABLE_INTERRUPTS(oldints);
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HAL_DCACHE_PURGE_ALL();
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HAL_DCACHE_PURGE_ALL();
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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_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_RESTORE_INTERRUPTS(oldints);
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HAL_RESTORE_INTERRUPTS(oldints);
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CYG_TEST_INFO("Dcache off Icache off");
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CYG_TEST_INFO("Dcache off Icache off");
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time1();
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time1();
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#endif // HAL_CACHE_UNIFIED
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#endif // HAL_CACHE_UNIFIED
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CYG_TEST_PASS_FINISH("End of test");
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CYG_TEST_PASS_FINISH("End of test");
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}
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}
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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void cache_main( void )
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void cache_main( void )
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{
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{
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CYG_TEST_INIT();
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CYG_TEST_INIT();
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entry0();
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entry0();
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}
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}
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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externC void
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externC void
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cyg_start( void )
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cyg_start( void )
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{
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{
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cache_main();
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cache_main();
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}
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}
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#else // HAL_DCACHE_SIZE
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#else // HAL_DCACHE_SIZE
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#define N_A_MSG "No cache"
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#define N_A_MSG "No cache"
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#endif // HAL_DCACHE_SIZE
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#endif // HAL_DCACHE_SIZE
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#ifdef N_A_MSG
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#ifdef N_A_MSG
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externC void
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externC void
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cyg_start( void )
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cyg_start( void )
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{
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{
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CYG_TEST_INIT();
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CYG_TEST_INIT();
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CYG_TEST_NA( N_A_MSG );
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CYG_TEST_NA( N_A_MSG );
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}
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}
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#endif // N_A_MSG
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#endif // N_A_MSG
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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/* EOF cache.c */
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/* EOF cache.c */
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