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| /*
| * arch/arm/mach-iop32x/include/mach/entry-macro.S
| *
| * Low-level IRQ helper macros for IOP32x-based platforms
| *
| * This file is licensed under the terms of the GNU General Public
| * License version 2. This program is licensed "as is" without any
| * warranty of any kind, whether express or implied.
| */
| .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, c8, c0, 0 @ Read IINTSRC
| cmp \irqstat, #0
| clzne \irqnr, \irqstat
| rsbne \irqnr, \irqnr, #32
| .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
|
|
