From 024b246ed24492d6c2ee14c34d742b137fce1b94 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 15 Aug 2008 09:19:40 -0700 Subject: alpha: move include/asm-alpha to arch/alpha/include/asm Sam Ravnborg did the build-test that the direct header file move works, I'm just committing it. This is a pure move: mkdir arch/alpha/include git mv include/asm-alpha arch/alpha/include/asm with no other changes. Requested-and-tested-by: Sam Ravnborg Cc: Richard Henderson Cc: Ivan Kokshaysky Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/hardirq.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 arch/alpha/include/asm/hardirq.h (limited to 'arch/alpha/include/asm/hardirq.h') diff --git a/arch/alpha/include/asm/hardirq.h b/arch/alpha/include/asm/hardirq.h new file mode 100644 index 000000000000..d953e234daa8 --- /dev/null +++ b/arch/alpha/include/asm/hardirq.h @@ -0,0 +1,30 @@ +#ifndef _ALPHA_HARDIRQ_H +#define _ALPHA_HARDIRQ_H + +#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 */ + +void ack_bad_irq(unsigned int irq); + +#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