diff options
| author | Andy Lutomirski <luto@mit.edu> | 2011-07-13 09:24:13 -0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-07-13 11:23:12 -0700 |
| commit | 433bd805e5fd2c731b3a9025b034f066272d336e (patch) | |
| tree | 3c319294f98d048146ba1b082241aee197c7d0cf /include | |
| parent | 7f79ad15f33cf4968cafb0e3d2beba427de01d3a (diff) | |
clocksource: Replace vread with generic arch data
The vread field was bloating struct clocksource everywhere except
x86_64, and I want to change the way this works on x86_64, so let's
split it out into per-arch data.
Cc: x86@kernel.org
Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: linux-ia64@vger.kernel.org
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/3ae5ec76a168eaaae63f08a2a1060b91aa0b7759.1310563276.git.luto@mit.edu
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/clocksource.h | 4 | ||||
| -rw-r--r-- | include/linux/clocksource.h | 10 |
2 files changed, 12 insertions, 2 deletions
diff --git a/include/asm-generic/clocksource.h b/include/asm-generic/clocksource.h new file mode 100644 index 00000000000..0a462d3fb05 --- /dev/null +++ b/include/asm-generic/clocksource.h @@ -0,0 +1,4 @@ +/* + * Architectures should override this file to add private userspace + * clock magic if needed. + */ diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index d4646b48dc4..0fb83c22447 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -22,6 +22,8 @@ typedef u64 cycle_t; struct clocksource; +#include <asm/clocksource.h> + /** * struct cyclecounter - hardware abstraction for a free running counter * Provides completely state-free accessors to the underlying hardware. @@ -153,7 +155,7 @@ extern u64 timecounter_cyc2time(struct timecounter *tc, * @shift: cycle to nanosecond divisor (power of two) * @max_idle_ns: max idle time permitted by the clocksource (nsecs) * @flags: flags describing special properties - * @vread: vsyscall based read + * @archdata: arch-specific data * @suspend: suspend function for the clocksource, if necessary * @resume: resume function for the clocksource, if necessary */ @@ -175,10 +177,14 @@ struct clocksource { #else #define CLKSRC_FSYS_MMIO_SET(mmio, addr) do { } while (0) #endif + +#ifdef __ARCH_HAS_CLOCKSOURCE_DATA + struct arch_clocksource_data archdata; +#endif + const char *name; struct list_head list; int rating; - cycle_t (*vread)(void); int (*enable)(struct clocksource *cs); void (*disable)(struct clocksource *cs); unsigned long flags; |