From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-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! --- include/asm-alpha/hardirq.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 include/asm-alpha/hardirq.h (limited to 'include/asm-alpha/hardirq.h') diff --git a/include/asm-alpha/hardirq.h b/include/asm-alpha/hardirq.h new file mode 100644 index 000000000000..c0593f9b21e1 --- /dev/null +++ b/include/asm-alpha/hardirq.h @@ -0,0 +1,29 @@ +#ifndef _ALPHA_HARDIRQ_H +#define _ALPHA_HARDIRQ_H + +#include +#include +#include + + +/* entry.S is sensitive to the offsets of these fields */ +typedef struct { + unsigned long __softirq_pending; +} ____cacheline_aligned irq_cpustat_t; + +#include /* Standard mappings for irq_cpustat_t above */ + +#define HARDIRQ_BITS 12 + +/* + * The hardirq mask has to be large enough to have + * space for potentially nestable IRQ sources in the system + * to nest on a single CPU. On Alpha, interrupts are masked at the CPU + * by IPL as well as at the system level. We only have 8 IPLs (UNIX PALcode) + * so we really only have 8 nestable IRQs, but allow some overhead + */ +#if (1 << HARDIRQ_BITS) < 16 +#error HARDIRQ_BITS is too low! +#endif + +#endif /* _ALPHA_HARDIRQ_H */ -- cgit v1.2.3