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: /lib/modules/5.11.0-1022-aws/build/arch/ia64/include/asm/ [ drwxr-xr-x ]
name : delay.h /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_IA64_DELAY_H #define _ASM_IA64_DELAY_H /* * Delay routines using a pre-computed "cycles/usec" value. * * Copyright (C) 1998, 1999 Hewlett-Packard Co * David Mosberger-Tang <davidm@hpl.hp.com> * Copyright (C) 1999 VA Linux Systems * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> * Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com> * Copyright (C) 1999 Don Dugger <don.dugger@intel.com> */ #include <linux/kernel.h> #include <linux/sched.h> #include <linux/compiler.h> #include <asm/intrinsics.h> #include <asm/processor.h> static __inline__ void ia64_set_itm (unsigned long val) { ia64_setreg(_IA64_REG_CR_ITM, val); ia64_srlz_d(); } static __inline__ unsigned long ia64_get_itm (void) { unsigned long result; result = ia64_getreg(_IA64_REG_CR_ITM); ia64_srlz_d(); return result; } static __inline__ void ia64_set_itv (unsigned long val) { ia64_setreg(_IA64_REG_CR_ITV, val); ia64_srlz_d(); } static __inline__ unsigned long ia64_get_itv (void) { return ia64_getreg(_IA64_REG_CR_ITV); } static __inline__ void ia64_set_itc (unsigned long val) { ia64_setreg(_IA64_REG_AR_ITC, val); ia64_srlz_d(); } static __inline__ unsigned long ia64_get_itc (void) { unsigned long result; result = ia64_getreg(_IA64_REG_AR_ITC); ia64_barrier(); #ifdef CONFIG_ITANIUM while (unlikely((__s32) result == -1)) { result = ia64_getreg(_IA64_REG_AR_ITC); ia64_barrier(); } #endif return result; } extern void ia64_delay_loop (unsigned long loops); static __inline__ void __delay (unsigned long loops) { if (unlikely(loops < 1)) return; ia64_delay_loop (loops - 1); } extern void udelay (unsigned long usecs); #endif /* _ASM_IA64_DELAY_H */