diff options
Diffstat (limited to '9/platforms/android-18/arch-mips/usr/include/linux/hardirq.h')
-rw-r--r-- | 9/platforms/android-18/arch-mips/usr/include/linux/hardirq.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/9/platforms/android-18/arch-mips/usr/include/linux/hardirq.h b/9/platforms/android-18/arch-mips/usr/include/linux/hardirq.h new file mode 100644 index 0000000..c0566b0 --- /dev/null +++ b/9/platforms/android-18/arch-mips/usr/include/linux/hardirq.h @@ -0,0 +1,73 @@ +/**************************************************************************** + **************************************************************************** + *** + *** This header was automatically generated from a Linux kernel header + *** of the same name, to make information necessary for userspace to + *** call into the kernel available to libc. It contains only constants, + *** structures, and macros generated from the original header, and thus, + *** contains no copyrightable information. + *** + **************************************************************************** + ****************************************************************************/ +#ifndef LINUX_HARDIRQ_H +#define LINUX_HARDIRQ_H + +#include <linux/preempt.h> +#include <linux/smp_lock.h> +#include <linux/lockdep.h> +#include <asm/hardirq.h> +#include <asm/system.h> + +#define PREEMPT_BITS 8 +#define SOFTIRQ_BITS 8 + +#ifndef HARDIRQ_BITS +#define HARDIRQ_BITS 12 + +#if 1 << HARDIRQ_BITS < NR_IRQS +#error HARDIRQ_BITS is too low! +#endif +#endif + +#define PREEMPT_SHIFT 0 +#define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS) +#define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS) + +#define __IRQ_MASK(x) ((1UL << (x))-1) + +#define PREEMPT_MASK (__IRQ_MASK(PREEMPT_BITS) << PREEMPT_SHIFT) +#define SOFTIRQ_MASK (__IRQ_MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT) +#define HARDIRQ_MASK (__IRQ_MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT) + +#define PREEMPT_OFFSET (1UL << PREEMPT_SHIFT) +#define SOFTIRQ_OFFSET (1UL << SOFTIRQ_SHIFT) +#define HARDIRQ_OFFSET (1UL << HARDIRQ_SHIFT) + +#if PREEMPT_ACTIVE < 1 << HARDIRQ_SHIFT + HARDIRQ_BITS +#error PREEMPT_ACTIVE is too low! +#endif + +#define hardirq_count() (preempt_count() & HARDIRQ_MASK) +#define softirq_count() (preempt_count() & SOFTIRQ_MASK) +#define irq_count() (preempt_count() & (HARDIRQ_MASK | SOFTIRQ_MASK)) + +#define in_irq() (hardirq_count()) +#define in_softirq() (softirq_count()) +#define in_interrupt() (irq_count()) + +#define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != 0) + +#define preemptible() 0 +#define IRQ_EXIT_OFFSET HARDIRQ_OFFSET + +#define synchronize_irq(irq) barrier() + +struct task_struct; + +#define irq_enter() do { account_system_vtime(current); add_preempt_count(HARDIRQ_OFFSET); trace_hardirq_enter(); } while (0) +#define __irq_exit() do { trace_hardirq_exit(); account_system_vtime(current); sub_preempt_count(HARDIRQ_OFFSET); } while (0) + +#define nmi_enter() do { lockdep_off(); irq_enter(); } while (0) +#define nmi_exit() do { __irq_exit(); lockdep_on(); } while (0) + +#endif |