mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 14:21:47 +00:00
a285edcf18
Realview doesn't include mach/platform.h in mach/hardware.h, so make versatile behave in the same way. Also, move the definition of __io_address() into mach/hardware.h, just like Realview. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
46 lines
1.1 KiB
ArmAsm
46 lines
1.1 KiB
ArmAsm
/*
|
|
* arch/arm/mach-versatile/include/mach/entry-macro.S
|
|
*
|
|
* Low-level IRQ helper macros for Versatile 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 <mach/hardware.h>
|
|
#include <mach/platform.h>
|
|
#include <asm/hardware/vic.h>
|
|
|
|
.macro disable_fiq
|
|
.endm
|
|
|
|
.macro get_irqnr_preamble, base, tmp
|
|
ldr \base, =IO_ADDRESS(VERSATILE_VIC_BASE)
|
|
.endm
|
|
|
|
.macro arch_ret_to_user, tmp1, tmp2
|
|
.endm
|
|
|
|
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
|
|
ldr \irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status
|
|
mov \irqnr, #0
|
|
teq \irqstat, #0
|
|
beq 1003f
|
|
|
|
1001: tst \irqstat, #15
|
|
bne 1002f
|
|
add \irqnr, \irqnr, #4
|
|
movs \irqstat, \irqstat, lsr #4
|
|
bne 1001b
|
|
1002: tst \irqstat, #1
|
|
bne 1003f
|
|
add \irqnr, \irqnr, #1
|
|
movs \irqstat, \irqstat, lsr #1
|
|
bne 1002b
|
|
1003: /* EQ will be set if no irqs pending */
|
|
|
|
@ clz \irqnr, \irqstat
|
|
@1003: /* EQ will be set if we reach MAXIRQNUM */
|
|
.endm
|
|
|