X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-x86_64%2Fhardirq.h;h=95d5e090ed89eb48d80a6c8b679db973c059d701;hb=refs%2Fheads%2Fvserver;hp=9ce1a78084e866cec5700f23ede694bfaae5fb99;hpb=c7b5ebbddf7bcd3651947760f423e3783bbe6573;p=linux-2.6.git diff --git a/include/asm-x86_64/hardirq.h b/include/asm-x86_64/hardirq.h index 9ce1a7808..95d5e090e 100644 --- a/include/asm-x86_64/hardirq.h +++ b/include/asm-x86_64/hardirq.h @@ -1,61 +1,23 @@ #ifndef __ASM_HARDIRQ_H #define __ASM_HARDIRQ_H -#include #include #include #include +#include + +/* We can have at most NR_VECTORS irqs routed to a cpu at a time */ +#define MAX_HARDIRQS_PER_CPU NR_VECTORS #define __ARCH_IRQ_STAT 1 -/* Generate a lvalue for a pda member. Should fix softirq.c instead to use - special access macros. This would generate better code. */ -#define __IRQ_STAT(cpu,member) (read_pda(me)->member) - -#include /* Standard mappings for irq_cpustat_t above */ - -/* - * We put the hardirq and softirq counter into the preemption - * counter. The bitmask has the following meaning: - * - * - bits 0-7 are the preemption count (max preemption depth: 256) - * - bits 8-15 are the softirq count (max # of softirqs: 256) - * - bits 16-23 are the hardirq count (max # of hardirqs: 256) - * - * - ( bit 26 is the PREEMPT_ACTIVE flag. ) - * - * PREEMPT_MASK: 0x000000ff - * HARDIRQ_MASK: 0x0000ff00 - * SOFTIRQ_MASK: 0x00ff0000 - */ - -#define PREEMPT_BITS 8 -#define SOFTIRQ_BITS 8 -#define HARDIRQ_BITS 8 - -#define PREEMPT_SHIFT 0 -#define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS) -#define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS) - -/* - * 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 nmi_enter() (irq_enter()) -#define nmi_exit() (preempt_count() -= HARDIRQ_OFFSET) - -#define irq_enter() (preempt_count() += HARDIRQ_OFFSET) -#define irq_exit() \ -do { \ - preempt_count() -= IRQ_EXIT_OFFSET; \ - if (!in_interrupt() && softirq_pending(smp_processor_id())) \ - do_softirq(); \ - preempt_enable_no_resched(); \ -} while (0) +#define local_softirq_pending() read_pda(__softirq_pending) + +#define __ARCH_SET_SOFTIRQ_PENDING 1 + +#define set_softirq_pending(x) write_pda(__softirq_pending, (x)) +#define or_softirq_pending(x) or_pda(__softirq_pending, (x)) + +extern void ack_bad_irq(unsigned int irq); #endif /* __ASM_HARDIRQ_H */