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36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/* init.c - initialize an ia64-based EFI system */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2008 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/types.h>
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#include <grub/cache.h>
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void
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grub_arch_sync_caches (void *address, grub_size_t len)
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{
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/* Cache line length is at least 32. */
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len += (grub_uint64_t)address & 0x1f;
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grub_uint64_t a = (grub_uint64_t)address & ~0x1f;
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/* Flush data. */
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for (len = (len + 31) & ~0x1f; len > 0; len -= 0x20, a += 0x20)
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asm volatile ("fc.i %0" : : "r" (a));
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/* Sync and serialize. Maybe extra. */
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asm volatile (";; sync.i;; srlz.i;;");
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}
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