mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 14:21:47 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
52 lines
1.2 KiB
ArmAsm
52 lines
1.2 KiB
ArmAsm
/*
|
|
* include/asm-arm/arch-CLPS711x/entry-macro.S
|
|
*
|
|
* Low-level IRQ helper macros for CLPS711X-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/hardware/clps7111.h>
|
|
|
|
.macro disable_fiq
|
|
.endm
|
|
|
|
#if (INTSR2 - INTSR1) != (INTMR2 - INTMR1)
|
|
#error INTSR stride != INTMR stride
|
|
#endif
|
|
|
|
.macro get_irqnr_and_base, irqnr, stat, base, mask
|
|
mov \base, #CLPS7111_BASE
|
|
ldr \stat, [\base, #INTSR1]
|
|
ldr \mask, [\base, #INTMR1]
|
|
mov \irqnr, #4
|
|
mov \mask, \mask, lsl #16
|
|
and \stat, \stat, \mask, lsr #16
|
|
movs \stat, \stat, lsr #4
|
|
bne 1001f
|
|
|
|
add \base, \base, #INTSR2 - INTSR1
|
|
ldr \stat, [\base, #INTSR1]
|
|
ldr \mask, [\base, #INTMR1]
|
|
mov \irqnr, #16
|
|
mov \mask, \mask, lsl #16
|
|
and \stat, \stat, \mask, lsr #16
|
|
|
|
1001: tst \stat, #255
|
|
addeq \irqnr, \irqnr, #8
|
|
moveq \stat, \stat, lsr #8
|
|
tst \stat, #15
|
|
addeq \irqnr, \irqnr, #4
|
|
moveq \stat, \stat, lsr #4
|
|
tst \stat, #3
|
|
addeq \irqnr, \irqnr, #2
|
|
moveq \stat, \stat, lsr #2
|
|
tst \stat, #1
|
|
addeq \irqnr, \irqnr, #1
|
|
moveq \stat, \stat, lsr #1
|
|
tst \stat, #1 @ bit 0 should be set
|
|
.endm
|
|
|
|
|