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The dma.h, hw_irq.h, serial.h and timex.h files originally described PC-style i8237, i8259A, i8250, i8253 and i8255 chips as well as the VGA style text mode graphics. Modern architectures live happily without these specific interfaces, but a few definitions from these headers keep getting used in common code. The new generic headers are what most architectures use anyway nowadays, just implementing the minimal definitions. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
23 lines
469 B
C
23 lines
469 B
C
#ifndef __ASM_GENERIC_TIMEX_H
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#define __ASM_GENERIC_TIMEX_H
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/*
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* If you have a cycle counter, return the value here.
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*/
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typedef unsigned long cycles_t;
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#ifndef get_cycles
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static inline cycles_t get_cycles(void)
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{
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return 0;
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}
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#endif
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/*
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* Architectures are encouraged to implement read_current_timer
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* and define this in order to avoid the expensive delay loop
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* calibration during boot.
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*/
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#undef ARCH_HAS_READ_CURRENT_TIMER
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#endif /* __ASM_GENERIC_TIMEX_H */
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