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42 lines
1.1 KiB
ArmAsm
42 lines
1.1 KiB
ArmAsm
/* cache.S - Flush the processor cache for a specific region. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2005,2007,2009 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/symbol.h>
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.file "cache.S"
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.text
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/*
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* void grub_arch_sync_caches (void *address, grub_size_t len)
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*/
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FUNCTION(grub_arch_sync_caches)
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brz,pn %o1, 2f
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add %o0, %o1, %o1
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add %o1, 7, %o1
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andn %o1, 7, %o1
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andn %o0, 7, %o0
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sub %o1, %o0, %o1
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1: subcc %o1, 8, %o1
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bne,pt %icc, 1b
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flush %o0 + %o1
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2: retl
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nop
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