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authorPaul Mackerras <paulus@samba.org>2009-06-17 21:51:13 +1000
committerIngo Molnar <mingo@elte.hu>2009-06-18 11:11:45 +0200
commit448d64f8f4c147db466c549550767cc515a4d34c (patch)
tree9c33191273219d8e4d77e3ea78304691e4fb4b56 /arch/m68knommu/lib
parent105988c015943e77092a6568bc5fb7e386df6ccd (diff)
perf_counter: powerpc: Use unsigned long for register and constraint values
This changes the powerpc perf_counter back-end to use unsigned long types for hardware register values and for the value/mask pairs used in checking whether a given set of events fit within the hardware constraints. This is in preparation for adding support for the PMU on some 32-bit powerpc processors. On 32-bit processors the hardware registers are only 32 bits wide, and the PMU structure is generally simpler, so 32 bits should be ample for expressing the hardware constraints. On 64-bit processors, unsigned long is 64 bits wide, so using unsigned long vs. u64 (unsigned long long) makes no actual difference. This makes some other very minor changes: adjusting whitespace to line things up in initialized structures, and simplifying some code in hw_perf_disable(). Signed-off-by: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: linuxppc-dev@ozlabs.org Cc: benh@kernel.crashing.org LKML-Reference: <19000.55473.26174.331511@cargo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/m68knommu/lib')
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