diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-15 09:19:40 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-15 09:19:40 -0700 |
commit | 024b246ed24492d6c2ee14c34d742b137fce1b94 (patch) | |
tree | 428444950025503218c96b03c86f749403626dec /arch/alpha/include/asm/timex.h | |
parent | 9419fc1c957d600093baaea247fef23cca3b4e93 (diff) |
alpha: move include/asm-alpha to arch/alpha/include/asm
Sam Ravnborg did the build-test that the direct header file move works,
I'm just committing it.
This is a pure move:
mkdir arch/alpha/include
git mv include/asm-alpha arch/alpha/include/asm
with no other changes.
Requested-and-tested-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/alpha/include/asm/timex.h')
-rw-r--r-- | arch/alpha/include/asm/timex.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/timex.h b/arch/alpha/include/asm/timex.h new file mode 100644 index 00000000000..afa0c45e3e9 --- /dev/null +++ b/arch/alpha/include/asm/timex.h @@ -0,0 +1,31 @@ +/* + * linux/include/asm-alpha/timex.h + * + * ALPHA architecture timex specifications + */ +#ifndef _ASMALPHA_TIMEX_H +#define _ASMALPHA_TIMEX_H + +/* With only one or two oddballs, we use the RTC as the ticker, selecting + the 32.768kHz reference clock, which nicely divides down to our HZ. */ +#define CLOCK_TICK_RATE 32768 + +/* + * Standard way to access the cycle counter. + * Currently only used on SMP for scheduling. + * + * Only the low 32 bits are available as a continuously counting entity. + * But this only means we'll force a reschedule every 8 seconds or so, + * which isn't an evil thing. + */ + +typedef unsigned int cycles_t; + +static inline cycles_t get_cycles (void) +{ + cycles_t ret; + __asm__ __volatile__ ("rpcc %0" : "=r"(ret)); + return ret; +} + +#endif |