diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 10:32:01 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 10:32:01 -0700 |
commit | 9daeaa370526df1c19eba4780247bb7155541e38 (patch) | |
tree | 5ae2601c26e280e81d753c1fe65453a3b8b1d2a0 /arch/sparc/include/asm/timer_32.h | |
parent | cb62ab71fe2b16e8203a0f0a2ef4eda23d761338 (diff) | |
parent | 1edc17832d8f49a0263d364c453ea35da0e4e2a6 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller:
1) Kill off support for sun4c and Cypress sun4m chips.
And as a result we were able to also kill off that ugly btfixup thing
that required multi-stage links of the final vmlinux image in the
Kbuild system. This should make the kbuild maintainers really happy.
Thanks a lot to Sam Ravnborg for his tireless efforts to get this
going.
2) Convert sparc64 to nobootmem. I suspect now with sparc32 being a lot
cleaner, it should be able to fall in line and modernize in this area
too.
3) Make sparc32 use generic clockevents, from Tkhai Kirill.
[ I fixed up the BPF rules, and tried to clean up the build rules too.
But I don't have - or want - a sparc cross-build environment, so the
BPF rule bug and the related build cleanup was all done with just a
bare "make -n" pseudo-test. - Linus ]
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (110 commits)
sparc32: use flushi when run-time patching in per_cpu_patch
sparc32: fix cpuid_patch run-time patching
sparc32: drop unused inline functions in srmmu.c
sparc32: drop unused functions in pgtsrmmu.h
sparc32,leon: move leon mmu functions to leon_mm.c
sparc32,leon: remove duplicate definitions in leon.h
sparc32,leon: remove duplicate UART register definitions
sparc32,leon: move leon ASI definitions to asi.h
sparc32: move trap table to a separate file
sparc64: renamed ttable.S to ttable_64.S
sparc32: Remove asm/sysen.h header.
sparc32: Delete asm/smpprim.h
sparc32: Remove unused empty_bad_page{,_table} declarations.
sparc32: Kill boot_cpu_id4
sparc32: Move GET_PROCESSOR*_ID() out of asm/asmmacro.h
sparc32: Remove completely unused code from asm/cache.h
sparc32: Add ucmpdi2.o to obj-y instead of lib-y.
sparc32: add ucmpdi2
sparc: introduce arch/sparc/Kbuild
sparc: remove obsolete documentation
...
Diffstat (limited to 'arch/sparc/include/asm/timer_32.h')
-rw-r--r-- | arch/sparc/include/asm/timer_32.h | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/arch/sparc/include/asm/timer_32.h b/arch/sparc/include/asm/timer_32.h index 1a91e11dd10..72f40a546de 100644 --- a/arch/sparc/include/asm/timer_32.h +++ b/arch/sparc/include/asm/timer_32.h @@ -8,14 +8,37 @@ #ifndef _SPARC_TIMER_H #define _SPARC_TIMER_H +#include <linux/clocksource.h> +#include <linux/irqreturn.h> + +#include <asm-generic/percpu.h> + #include <asm/cpu_type.h> /* For SUN4M_NCPUS */ -#include <asm/btfixup.h> + +#define SBUS_CLOCK_RATE 2000000 /* 2MHz */ +#define TIMER_VALUE_SHIFT 9 +#define TIMER_VALUE_MASK 0x3fffff +#define TIMER_LIMIT_BIT (1 << 31) /* Bit 31 in Counter-Timer register */ + +/* The counter timer register has the value offset by 9 bits. + * From sun4m manual: + * When a counter reaches the value in the corresponding limit register, + * the Limit bit is set and the counter is set to 500 nS (i.e. 0x00000200). + * + * To compensate for this add one to the value. + */ +static inline unsigned int timer_value(unsigned int value) +{ + return (value + 1) << TIMER_VALUE_SHIFT; +} extern __volatile__ unsigned int *master_l10_counter; -/* FIXME: Make do_[gs]ettimeofday btfixup calls */ -struct timespec; -BTFIXUPDEF_CALL(int, bus_do_settimeofday, struct timespec *tv) -#define bus_do_settimeofday(tv) BTFIXUP_CALL(bus_do_settimeofday)(tv) +extern irqreturn_t notrace timer_interrupt(int dummy, void *dev_id); + +#ifdef CONFIG_SMP +DECLARE_PER_CPU(struct clock_event_device, sparc32_clockevent); +extern void register_percpu_ce(int cpu); +#endif #endif /* !(_SPARC_TIMER_H) */ |