1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef LINUX_HARDIRQ_H 20 #define LINUX_HARDIRQ_H 21 #include <linux/preempt.h> 22 #include <linux/smp_lock.h> 23 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24 #include <linux/lockdep.h> 25 #include <asm/hardirq.h> 26 #include <asm/system.h> 27 #define PREEMPT_BITS 8 28 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29 #define SOFTIRQ_BITS 8 30 #ifndef HARDIRQ_BITS 31 #define HARDIRQ_BITS 12 32 #if 1 << HARDIRQ_BITS < NR_IRQS 33 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 34 #error HARDIRQ_BITS is too low! 35 #endif 36 #endif 37 #define PREEMPT_SHIFT 0 38 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 39 #define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS) 40 #define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS) 41 #define __IRQ_MASK(x) ((1UL << (x))-1) 42 #define PREEMPT_MASK (__IRQ_MASK(PREEMPT_BITS) << PREEMPT_SHIFT) 43 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 44 #define SOFTIRQ_MASK (__IRQ_MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT) 45 #define HARDIRQ_MASK (__IRQ_MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT) 46 #define PREEMPT_OFFSET (1UL << PREEMPT_SHIFT) 47 #define SOFTIRQ_OFFSET (1UL << SOFTIRQ_SHIFT) 48 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 49 #define HARDIRQ_OFFSET (1UL << HARDIRQ_SHIFT) 50 #if PREEMPT_ACTIVE < 1 << HARDIRQ_SHIFT + HARDIRQ_BITS 51 #error PREEMPT_ACTIVE is too low! 52 #endif 53 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 54 #define hardirq_count() (preempt_count() & HARDIRQ_MASK) 55 #define softirq_count() (preempt_count() & SOFTIRQ_MASK) 56 #define irq_count() (preempt_count() & (HARDIRQ_MASK | SOFTIRQ_MASK)) 57 #define in_irq() (hardirq_count()) 58 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 59 #define in_softirq() (softirq_count()) 60 #define in_interrupt() (irq_count()) 61 #define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != 0) 62 #define preemptible() 0 63 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 64 #define IRQ_EXIT_OFFSET HARDIRQ_OFFSET 65 #define synchronize_irq(irq) barrier() 66 struct task_struct; 67 #define irq_enter() do { account_system_vtime(current); add_preempt_count(HARDIRQ_OFFSET); trace_hardirq_enter(); } while (0) 68 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 69 #define __irq_exit() do { trace_hardirq_exit(); account_system_vtime(current); sub_preempt_count(HARDIRQ_OFFSET); } while (0) 70 #define nmi_enter() do { lockdep_off(); irq_enter(); } while (0) 71 #define nmi_exit() do { __irq_exit(); lockdep_on(); } while (0) 72 #endif 73 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 74
