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_JIFFIES_H 20 #define _LINUX_JIFFIES_H 21 #include <linux/calc64.h> 22 #include <linux/kernel.h> 23 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24 #include <linux/types.h> 25 #include <linux/time.h> 26 #include <linux/timex.h> 27 #include <asm/param.h> 28 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29 #if HZ >= (12 && HZ < 24) 30 #define SHIFT_HZ 4 31 #elif HZ >= 24 && HZ < 48 32 #define SHIFT_HZ 5 33 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 34 #elif HZ >= 48 && HZ < 96 35 #define SHIFT_HZ 6 36 #elif HZ >= 96 && HZ < 192 37 #define SHIFT_HZ 7 38 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 39 #elif HZ >= 192 && HZ < 384 40 #define SHIFT_HZ 8 41 #elif HZ >= 384 && HZ < 768 42 #define SHIFT_HZ 9 43 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 44 #elif HZ >= 768 && HZ < 1536 45 #define SHIFT_HZ 10 46 #else 47 #error You lose. 48 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 49 #endif 50 #define LATCH ((CLOCK_TICK_RATE + HZ/2) / HZ) 51 #define LATCH_HPET ((HPET_TICK_RATE + HZ/2) / HZ) 52 #define SH_DIV(NOM,DEN,LSH) ( (((NOM) / (DEN)) << (LSH)) + ((((NOM) % (DEN)) << (LSH)) + (DEN) / 2) / (DEN)) 53 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 54 #define ACTHZ (SH_DIV (CLOCK_TICK_RATE, LATCH, 8)) 55 #define ACTHZ_HPET (SH_DIV (HPET_TICK_RATE, LATCH_HPET, 8)) 56 #define TICK_NSEC (SH_DIV (1000000UL * 1000, ACTHZ, 8)) 57 #define TICK_NSEC_HPET (SH_DIV(1000000UL * 1000, ACTHZ_HPET, 8)) 58 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 59 #define TICK_USEC ((1000000UL + USER_HZ/2) / USER_HZ) 60 #define TICK_USEC_TO_NSEC(TUSEC) (SH_DIV (TUSEC * USER_HZ * 1000, ACTHZ, 8)) 61 #define __jiffy_data __attribute__((section(".data"))) 62 #if BITS_PER_LONG < 64 63 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 64 #else 65 #endif 66 #define time_after(a,b) (typecheck(unsigned long, a) && typecheck(unsigned long, b) && ((long)(b) - (long)(a) < 0)) 67 #define time_before(a,b) time_after(b,a) 68 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 69 #define time_after_eq(a,b) (typecheck(unsigned long, a) && typecheck(unsigned long, b) && ((long)(a) - (long)(b) >= 0)) 70 #define time_before_eq(a,b) time_after_eq(b,a) 71 #define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ)) 72 #define MAX_JIFFY_OFFSET ((~0UL >> 1)-1) 73 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 74 #define SEC_JIFFIE_SC (31 - SHIFT_HZ) 75 #if !((NSEC_PER_SEC << 2) / TICK_NSEC << SEC_JIFFIE_SC - 2 & 0x80000000) 76 #undef SEC_JIFFIE_SC 77 #define SEC_JIFFIE_SC (32 - SHIFT_HZ) 78 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 79 #endif 80 #define NSEC_JIFFIE_SC (SEC_JIFFIE_SC + 29) 81 #define USEC_JIFFIE_SC (SEC_JIFFIE_SC + 19) 82 #define SEC_CONVERSION ((unsigned long)((((u64)NSEC_PER_SEC << SEC_JIFFIE_SC) + TICK_NSEC -1) / (u64)TICK_NSEC)) 83 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 84 #define NSEC_CONVERSION ((unsigned long)((((u64)1 << NSEC_JIFFIE_SC) + TICK_NSEC -1) / (u64)TICK_NSEC)) 85 #define USEC_CONVERSION ((unsigned long)((((u64)NSEC_PER_USEC << USEC_JIFFIE_SC) + TICK_NSEC -1) / (u64)TICK_NSEC)) 86 #define USEC_ROUND (u64)(((u64)1 << USEC_JIFFIE_SC) - 1) 87 #if BITS_PER_LONG < 64 88 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 89 #define MAX_SEC_IN_JIFFIES (long)((u64)((u64)MAX_JIFFY_OFFSET * TICK_NSEC) / NSEC_PER_SEC) 90 #else 91 #define MAX_SEC_IN_JIFFIES (SH_DIV((MAX_JIFFY_OFFSET >> SEC_JIFFIE_SC) * TICK_NSEC, NSEC_PER_SEC, 1) - 1) 92 #endif 93 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 94 #if HZ <= (MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)) 95 #elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC) 96 #else 97 #endif 98 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 99 #if HZ <= (USEC_PER_SEC && !(USEC_PER_SEC % HZ)) 100 #elif HZ > USEC_PER_SEC && !(HZ % USEC_PER_SEC) 101 #else 102 #endif 103 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 104 #if HZ <= (MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)) 105 #elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC) 106 #else 107 #endif 108 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 109 #if HZ <= (USEC_PER_SEC && !(USEC_PER_SEC % HZ)) 110 #elif HZ > USEC_PER_SEC && !(HZ % USEC_PER_SEC) 111 #else 112 #endif 113 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 114 #if TICK_NSEC % NSEC_PER_SEC / USER_HZ == 0 115 #else 116 #endif 117 #if HZ % USER_HZ == 0 118 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 119 #else 120 #endif 121 #if TICK_NSEC % NSEC_PER_SEC / USER_HZ == 0 122 #else 123 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 124 #endif 125 #if NSEC_PER_SEC % USER_HZ == 0 126 #elif (USER_HZ % 512) == 0 127 #else 128 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 129 #endif 130 #endif 131