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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 16:14:20 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 16:14:20 -0700 |
commit | 32087d4eeca14b82660dab288b1d659963b954bd (patch) | |
tree | 8c131ca9bf08f88d3b02e1937b795a42f8951d79 /arch/s390/include/asm/timex.h | |
parent | b1c907f3b2675ecb01e340948fc62d6535ff5ac3 (diff) | |
parent | 07ea815b22b9f70ec8de6ddf8db63a1dd1585caf (diff) |
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (54 commits)
[S390] Remove error checking from copy_oldmem_page()
[S390] qdio: prevent dsci access without adapter interrupts
[S390] irqstats: split IPI interrupt accounting
[S390] add missing __tlb_flush_global() for !CONFIG_SMP
[S390] sparse: fix sparse symbol shadow warning
[S390] sparse: fix sparse NULL pointer warnings
[S390] sparse: fix sparse warnings with __user pointers
[S390] sparse: fix sparse warnings in math-emu
[S390] sparse: fix sparse warnings about missing prototypes
[S390] sparse: fix sparse ANSI-C warnings
[S390] sparse: fix sparse static warnings
[S390] sparse: fix access past end of array warnings
[S390] dasd: prevent path verification before resume
[S390] qdio: remove multicast polling
[S390] qdio: reset outbound SBAL error states
[S390] qdio: EQBS retry after CCQ 96
[S390] qdio: add timestamp for last queue scan time
[S390] Introduce get_clock_fast()
[S390] kvm: Handle diagnose 0x10 (release pages)
[S390] take mmap_sem when walking guest page table
...
Diffstat (limited to 'arch/s390/include/asm/timex.h')
-rw-r--r-- | arch/s390/include/asm/timex.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index 88829a40af6..d610bef9c5e 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -86,6 +86,17 @@ static inline void get_clock_ext(char *clk) asm volatile("stcke %0" : "=Q" (*clk) : : "cc"); } +static inline unsigned long long get_clock_fast(void) +{ + unsigned long long clk; + + if (test_facility(25)) + asm volatile(".insn s,0xb27c0000,%0" : "=Q" (clk) : : "cc"); + else + clk = get_clock(); + return clk; +} + static inline unsigned long long get_clock_xt(void) { unsigned char clk[16]; |