diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-clps711x/entry-macro.S |
Linux-2.6.12-rc2v2.6.12-rc2
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!
Diffstat (limited to 'include/asm-arm/arch-clps711x/entry-macro.S')
-rw-r--r-- | include/asm-arm/arch-clps711x/entry-macro.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/include/asm-arm/arch-clps711x/entry-macro.S b/include/asm-arm/arch-clps711x/entry-macro.S new file mode 100644 index 000000000000..b31079a1d4a9 --- /dev/null +++ b/include/asm-arm/arch-clps711x/entry-macro.S | |||
@@ -0,0 +1,51 @@ | |||
1 | /* | ||
2 | * include/asm-arm/arch-CLPS711x/entry-macro.S | ||
3 | * | ||
4 | * Low-level IRQ helper macros for CLPS711X-based platforms | ||
5 | * | ||
6 | * This file is licensed under the terms of the GNU General Public | ||
7 | * License version 2. This program is licensed "as is" without any | ||
8 | * warranty of any kind, whether express or implied. | ||
9 | */ | ||
10 | #include <asm/hardware/clps7111.h> | ||
11 | |||
12 | .macro disable_fiq | ||
13 | .endm | ||
14 | |||
15 | #if (INTSR2 - INTSR1) != (INTMR2 - INTMR1) | ||
16 | #error INTSR stride != INTMR stride | ||
17 | #endif | ||
18 | |||
19 | .macro get_irqnr_and_base, irqnr, stat, base, mask | ||
20 | mov \base, #CLPS7111_BASE | ||
21 | ldr \stat, [\base, #INTSR1] | ||
22 | ldr \mask, [\base, #INTMR1] | ||
23 | mov \irqnr, #4 | ||
24 | mov \mask, \mask, lsl #16 | ||
25 | and \stat, \stat, \mask, lsr #16 | ||
26 | movs \stat, \stat, lsr #4 | ||
27 | bne 1001f | ||
28 | |||
29 | add \base, \base, #INTSR2 - INTSR1 | ||
30 | ldr \stat, [\base, #INTSR1] | ||
31 | ldr \mask, [\base, #INTMR1] | ||
32 | mov \irqnr, #16 | ||
33 | mov \mask, \mask, lsl #16 | ||
34 | and \stat, \stat, \mask, lsr #16 | ||
35 | |||
36 | 1001: tst \stat, #255 | ||
37 | addeq \irqnr, \irqnr, #8 | ||
38 | moveq \stat, \stat, lsr #8 | ||
39 | tst \stat, #15 | ||
40 | addeq \irqnr, \irqnr, #4 | ||
41 | moveq \stat, \stat, lsr #4 | ||
42 | tst \stat, #3 | ||
43 | addeq \irqnr, \irqnr, #2 | ||
44 | moveq \stat, \stat, lsr #2 | ||
45 | tst \stat, #1 | ||
46 | addeq \irqnr, \irqnr, #1 | ||
47 | moveq \stat, \stat, lsr #1 | ||
48 | tst \stat, #1 @ bit 0 should be set | ||
49 | .endm | ||
50 | |||
51 | |||