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Diffstat (limited to 'sys/boot/ia64/common/icache.c')
-rw-r--r-- | sys/boot/ia64/common/icache.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sys/boot/ia64/common/icache.c b/sys/boot/ia64/common/icache.c new file mode 100644 index 0000000..77a35d7 --- /dev/null +++ b/sys/boot/ia64/common/icache.c @@ -0,0 +1,51 @@ +/*- + * Copyright (c) 2011 Marcel Moolenaar + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <stand.h> +#include <machine/ia64_cpu.h> + +#include "libia64.h" + +void +ia64_sync_icache(vm_offset_t va, size_t sz) +{ + uintptr_t pa; + size_t cnt, max; + + while (sz > 0) { + max = sz; + pa = (uintptr_t)ia64_va2pa(va, &max); + for (cnt = 0; cnt < max; cnt += 32) + ia64_fc_i(pa + cnt); + ia64_sync_i(); + va += max; + sz -= max; + } + ia64_srlz_i(); +} |