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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 00:20:36 +0200
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 00:20:36 +0200
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm26/hardirq.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
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 @@
+#ifndef __ASM_HARDIRQ_H
+#define __ASM_HARDIRQ_H
+
+#include <linux/config.h>
+#include <linux/cache.h>
+#include <linux/threads.h>
+
+typedef struct {
+ unsigned int __softirq_pending;
+} ____cacheline_aligned irq_cpustat_t;
+
+#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+
+#define HARDIRQ_BITS 8
+
+/*
+ * The hardirq mask has to be large enough to have space
+ * for potentially all IRQ sources in the system nesting
+ * on a single CPU:
+ */
+#if (1 << HARDIRQ_BITS) < NR_IRQS
+# error HARDIRQ_BITS is too low!
+#endif
+
+#define irq_enter() (preempt_count() += HARDIRQ_OFFSET)
+
+#ifndef CONFIG_SMP
+
+extern asmlinkage void __do_softirq(void);
+
+#define irq_exit() \
+ do { \
+ preempt_count() -= IRQ_EXIT_OFFSET; \
+ if (!in_interrupt() && local_softirq_pending()) \
+ __do_softirq(); \
+ preempt_enable_no_resched(); \
+ } while (0)
+#endif
+
+
+#endif /* __ASM_HARDIRQ_H */