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/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2001 - 2013 Tensilica Inc. */
#ifndef _XTENSA_TIMEX_H #define _XTENSA_TIMEX_H
#include <asm/processor.h>
#if XCHAL_NUM_TIMERS > 0 && \ XTENSA_INT_LEVEL(XCHAL_TIMER0_INTERRUPT) <= XCHAL_EXCM_LEVEL # define LINUX_TIMER 0 # define LINUX_TIMER_INT XCHAL_TIMER0_INTERRUPT #elif XCHAL_NUM_TIMERS > 1 && \ XTENSA_INT_LEVEL(XCHAL_TIMER1_INTERRUPT) <= XCHAL_EXCM_LEVEL # define LINUX_TIMER 1 # define LINUX_TIMER_INT XCHAL_TIMER1_INTERRUPT #elif XCHAL_NUM_TIMERS > 2 && \ XTENSA_INT_LEVEL(XCHAL_TIMER2_INTERRUPT) <= XCHAL_EXCM_LEVEL # define LINUX_TIMER 2 # define LINUX_TIMER_INT XCHAL_TIMER2_INTERRUPT #else # error "Bad timer number for Linux configurations!" #endif
extern unsigned long ccount_freq;
typedef unsigned long long cycles_t;
#define get_cycles() (0)
void local_timer_setup(unsigned cpu);
/* * Register access. */
static inline unsigned long get_ccount (void) { return xtensa_get_sr(ccount); }
static inline void set_ccount (unsigned long ccount) { xtensa_set_sr(ccount, ccount); }
static inline unsigned long get_linux_timer (void) { return xtensa_get_sr(SREG_CCOMPARE + LINUX_TIMER); }
static inline void set_linux_timer (unsigned long ccompare) { xtensa_set_sr(ccompare, SREG_CCOMPARE + LINUX_TIMER); }
#endif /* _XTENSA_TIMEX_H */
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