linux/arch/alpha/include/asm/rtc.h

#ifndef _ALPHA_RTC_H
#define _ALPHA_RTC_H

#if defined(CONFIG_ALPHA_GENERIC)
# define get_rtc_time		alpha_mv.rtc_get_time
# define set_rtc_time		alpha_mv.rtc_set_time
#else
# if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP)
#  define get_rtc_time		marvel_get_rtc_time
#  define set_rtc_time		marvel_set_rtc_time
# endif
#endif

#include <asm-generic/rtc.h>

#endif
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-16 22:20:36 +00:00			`#ifndef _ALPHA_RTC_H`
			`#define _ALPHA_RTC_H`

alpha: fix RTC on marvel Unlike other alphas, marvel doesn't have real PC-style CMOS clock hardware - RTC accesses are emulated via PAL calls. Unfortunately, for unknown reason these calls work only on CPU #0. So current implementation for arbitrary CPU makes CMOS_READ/WRITE to be executed on CPU #0 via IPI. However, for obvious reason this doesn't work with standard get/set_rtc_time() functions, where a bunch of CMOS accesses is done with disabled interrupts. Solved by making the IPI calls for entire get/set_rtc_time() functions, not for individual CMOS accesses. Which is also a lot more effective performance-wise. The patch is largely based on the code from Jay Estabrook. My changes: - tweak asm-generic/rtc.h by adding a couple of #defines to avoid a massive code duplication in arch/alpha/include/asm/rtc.h; - sys_marvel.c: fix get/set_rtc_time() return values (Jay's FIXMEs). NOTE: this fixes only LIB_RTC drivers. Legacy (CONFIG_RTC) driver wont't work on marvel. Actually I think that we should just disable CONFIG_RTC on alpha (maybe in 2.6.30?), like most other arches - AFAIK, all modern distributions use LIB_RTC anyway. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2009-01-15 21:51:19 +00:00			`#if defined(CONFIG_ALPHA_GENERIC)`
			`# define get_rtc_time alpha_mv.rtc_get_time`
			`# define set_rtc_time alpha_mv.rtc_set_time`
			`#else`
			`# if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP)`
			`# define get_rtc_time marvel_get_rtc_time`
			`# define set_rtc_time marvel_set_rtc_time`
			`# endif`
			`#endif`
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-16 22:20:36 +00:00
			`#include <asm-generic/rtc.h>`

			`#endif`