mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
1.4 KiB
62 lines
1.4 KiB
/* |
|
* 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 */
|
|
|