android_kernel_xiaomi_sm8350/include/asm-arm/arch-iop32x/entry-macro.S
Lennert Buytenhek 7412b10f79 [ARM] 3829/1: iop3xx: optimise irq entry macros
Squeeze three instructions out of the iop32x irq demuxer, and nine
out of the iop33x irq demuxer by using the hardware vector generator.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:49 +01:00

25 lines
641 B
ArmAsm

/*
* include/asm-arm/arch-iop32x/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.
*/
#include <asm/arch/irqs.h>
.macro disable_fiq
.endm
/*
* Note: only deal with normal interrupts, not FIQ
*/
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
ldr \base, =IOP3XX_REG_ADDR(0x07D8)
ldr \irqstat, [\base] @ Read IINTSRC
cmp \irqstat, #0
clzne \irqnr, \irqstat
rsbne \irqnr, \irqnr, #31
.endm