Re: [RFC][PATCH 4/6] arm, mm: Convert arm to generic tlb

[Russell King]

On Thu, May 17, 2012 at 10:30:23AM +0100, Catalin Marinas wrote:
> Another minor thing is that on newer ARM processors (Cortex-A15) we
> need the TLB shootdown even on UP systems, so tlb_fast_mode should
> always return 0. Something like below (untested):

No Catalin, we need this for virtually all ARMv7 CPUs whether they're UP
or SMP, not just for A15, because of the speculative prefetch which can
re-load TLB entries from the page tables at _any_ time.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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