source: grub-pc/trunk/fuentes/grub-core/kern/ia64/cache.c @ 22

Last change on this file since 22 was 22, checked in by mabarracus, 4 years ago

updated version and apply net.ifnames=0 into debian/rules

File size: 1.2 KB
Line 
1/* init.c - initialize an ia64-based EFI system */
2/*
3 *  GRUB  --  GRand Unified Bootloader
4 *  Copyright (C) 2008  Free Software Foundation, Inc.
5 *
6 *  GRUB is free software: you can redistribute it and/or modify
7 *  it under the terms of the GNU General Public License as published by
8 *  the Free Software Foundation, either version 3 of the License, or
9 *  (at your option) any later version.
10 *
11 *  GRUB is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *  GNU General Public License for more details.
15 *
16 *  You should have received a copy of the GNU General Public License
17 *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <grub/types.h>
21#include <grub/cache.h>
22
23void
24grub_arch_sync_caches (void *address, grub_size_t len)
25{
26  /* Cache line length is at least 32.  */
27  len += (grub_uint64_t)address & 0x1f;
28  grub_uint64_t a = (grub_uint64_t)address & ~0x1f;
29
30  /* Flush data.  */
31  for (len = (len + 31) & ~0x1f; len > 0; len -= 0x20, a += 0x20)
32    asm volatile ("fc.i %0" : : "r" (a));
33  /* Sync and serialize.  Maybe extra.  */
34  asm volatile (";; sync.i;; srlz.i;;");
35}
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