[RFC][PATCH v3] powerpc: e300c2/c3/c4 TLB errata workaround

Kumar Gala galak at kernel.crashing.org
Sat Mar 14 09:06:46 EST 2009


On Mar 13, 2009, at 4:26 PM, Benjamin Herrenschmidt wrote:

>> +BEGIN_FTR_SECTION
>> +	b      TlbWo    /* Code for TLB-errata workaround doesn't fit  
>> here */
>> +END_FTR_SECTION_IFSET(CPU_FTR_NEED_DTLB_SW_LRU)
>> +RFTlbWo:
>
> Can you use nicer label names ? :-)
>
> Also, that's a lot of code for such a hot path...
>
> Cheers,
> Ben.

The code needs reworking.  However, we are doing SW LRU, not sure how  
we reduce this in the hot path.

- k



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