2005-04-17 06:20:36 +08:00
|
|
|
/*
|
2008-08-05 23:14:15 +08:00
|
|
|
* arch/arm/mach-iop33x/include/mach/entry-macro.S
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
2006-09-19 06:10:26 +08:00
|
|
|
* Low-level IRQ helper macros for IOP33x-based platforms
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
2006-09-19 06:26:25 +08:00
|
|
|
* This file is licensed under the terms of the GNU General Public
|
2005-04-17 06:20:36 +08:00
|
|
|
* License version 2. This program is licensed "as is" without any
|
|
|
|
* warranty of any kind, whether express or implied.
|
|
|
|
*/
|
2008-08-05 23:14:15 +08:00
|
|
|
#include <mach/iop33x.h>
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-02-17 05:16:32 +08:00
|
|
|
.macro disable_fiq
|
|
|
|
.endm
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-02-17 05:16:32 +08:00
|
|
|
.macro get_irqnr_preamble, base, tmp
|
|
|
|
mrc p15, 0, \tmp, c15, c1, 0
|
|
|
|
orr \tmp, \tmp, #(1 << 6)
|
|
|
|
mcr p15, 0, \tmp, c15, c1, 0 @ Enable cp6 access
|
|
|
|
mrc p15, 0, \tmp, c15, c1, 0
|
|
|
|
mov \tmp, \tmp
|
|
|
|
sub pc, pc, #4 @ cp_wait
|
|
|
|
.endm
|
|
|
|
|
|
|
|
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
|
|
|
|
mrc p6, 0, \irqstat, c14, c0, 0 @ Read IINTVEC
|
|
|
|
cmp \irqstat, #0
|
|
|
|
mrceq p6, 0, \irqstat, c14, c0, 0 @ erratum 63 workaround
|
|
|
|
adds \irqnr, \irqstat, #1
|
|
|
|
movne \irqnr, \irqstat, lsr #2
|
|
|
|
.endm
|
|
|
|
|
|
|
|
.macro arch_ret_to_user, tmp1, tmp2
|
|
|
|
mrc p15, 0, \tmp1, c15, c1, 0
|
|
|
|
ands \tmp2, \tmp1, #(1 << 6)
|
|
|
|
bicne \tmp1, \tmp1, #(1 << 6)
|
|
|
|
mcrne p15, 0, \tmp1, c15, c1, 0 @ Disable cp6 access
|
|
|
|
.endm
|