Re: [PATCH] ARM TLB: add v7wbi_{possible, always}_flags to {possible, always}_tlb_flags

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On Mon, 2008-08-11 at 23:08 +0100, Russell King - ARM Linux wrote:
> On Mon, Aug 11, 2008 at 02:03:10PM -0600, Paul Walmsley wrote:
> > Commit 2ccdd1e77da52ad494e9af46bf272d816830cb28 doesn't add 
> > v7wbi_possible_flags and v7wbi_always_flags to possible_tlb_flags and 
> > always_tlb_flags.  This causes the L2 cache flush in clean_pmd_entry() 
> > (intended for Feroceon only) to execute on ARMv7, and the CPU hangs.
> 
> And this most definitely is required.  One wonders how any ARMv7
> platform could boot without this.  Please submit to the patch
> system, I don't think any further acks are required.

It is a bug indeed but not visible until commit 99c6dc11
(Feroceon-specific TLB flushing which is undefined on ARMv7).

-- 
Catalin

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