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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm26/hardirq.h
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-arm26/hardirq.h')
-rw-r--r--include/asm-arm26/hardirq.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-arm26/hardirq.h b/include/asm-arm26/hardirq.h
new file mode 100644
index 000000000000..791ee1da9bfa
--- /dev/null
+++ b/include/asm-arm26/hardirq.h
@@ -0,0 +1,41 @@
1#ifndef __ASM_HARDIRQ_H
2#define __ASM_HARDIRQ_H
3
4#include <linux/config.h>
5#include <linux/cache.h>
6#include <linux/threads.h>
7
8typedef struct {
9 unsigned int __softirq_pending;
10} ____cacheline_aligned irq_cpustat_t;
11
12#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
13
14#define HARDIRQ_BITS 8
15
16/*
17 * The hardirq mask has to be large enough to have space
18 * for potentially all IRQ sources in the system nesting
19 * on a single CPU:
20 */
21#if (1 << HARDIRQ_BITS) < NR_IRQS
22# error HARDIRQ_BITS is too low!
23#endif
24
25#define irq_enter() (preempt_count() += HARDIRQ_OFFSET)
26
27#ifndef CONFIG_SMP
28
29extern asmlinkage void __do_softirq(void);
30
31#define irq_exit() \
32 do { \
33 preempt_count() -= IRQ_EXIT_OFFSET; \
34 if (!in_interrupt() && local_softirq_pending()) \
35 __do_softirq(); \
36 preempt_enable_no_resched(); \
37 } while (0)
38#endif
39
40
41#endif /* __ASM_HARDIRQ_H */