From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- arch/mips/include/asm/time.h | 77 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 arch/mips/include/asm/time.h (limited to 'arch/mips/include/asm/time.h') diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h new file mode 100644 index 000000000..b85ec64ee --- /dev/null +++ b/arch/mips/include/asm/time.h @@ -0,0 +1,77 @@ +/* + * Copyright (C) 2001, 2002, MontaVista Software Inc. + * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net + * Copyright (c) 2003 Maciej W. Rozycki + * + * include/asm-mips/time.h + * header file for the new style time.c file and time services. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ +#ifndef _ASM_TIME_H +#define _ASM_TIME_H + +#include +#include +#include +#include + +extern spinlock_t rtc_lock; + +/* + * board specific routines required by time_init(). + */ +extern void plat_time_init(void); + +/* + * mips_hpt_frequency - must be set if you intend to use an R4k-compatible + * counter as a timer interrupt source. + */ +extern unsigned int mips_hpt_frequency; + +/* + * The performance counter IRQ on MIPS is a close relative to the timer IRQ + * so it lives here. + */ +extern int (*perf_irq)(void); +extern int __weak get_c0_perfcount_int(void); + +/* + * Initialize the calling CPU's compare interrupt as clockevent device + */ +extern unsigned int get_c0_compare_int(void); +extern int r4k_clockevent_init(void); + +static inline int mips_clockevent_init(void) +{ +#ifdef CONFIG_CEVT_R4K + return r4k_clockevent_init(); +#else + return -ENXIO; +#endif +} + +/* + * Initialize the count register as a clocksource + */ +extern int init_r4k_clocksource(void); + +static inline int init_mips_clocksource(void) +{ +#ifdef CONFIG_CSRC_R4K + return init_r4k_clocksource(); +#else + return 0; +#endif +} + +static inline void clockevent_set_clock(struct clock_event_device *cd, + unsigned int clock) +{ + clockevents_calc_mult_shift(cd, clock, 4); +} + +#endif /* _ASM_TIME_H */ -- cgit v1.2.3