2009-03-04 22:25:22     Can I invalidate or write through data cache in user space?

2009-03-04 22:25:22     Can I invalidate or write through data cache in user space?

david wang (CHINA)

Message: 70393   

Hi, all

  I know there is blackfin_dcache_invalidate_range function in kernel space,  but if in use space, how to do?

  Thanks!

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2009-03-04 22:39:52     Re: Can I invalidate or write through data cache in user space?

Mike Frysinger (UNITED STATES)

Message: 70394   

the PRM documents access permissions for instructions

that said, cache management is really the business of the kernel, not userspace