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/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#include <arch/asm.h>
ENTRY(__wait_for_spin_table_request)
/* Entry here is in EL2 with the magic address in x0. */
mov x28, x0
1:
ldr x27, [x28]
cmp x27, xzr
b.ne 2f
wfe
b 1b
2:
/* Entry into the kernel. */
mov x0, xzr
mov x1, xzr
mov x2, xzr
mov x3, xzr
br x27
ENDPROC(__wait_for_spin_table_request)
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