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powerpc/fsl-booke: Fix comments in mmu code that mention BATS 

There are no BATS on BookE - we have the TLBCAM instead.  Also correct
the page size information to included extended sizes.  We don't actually allow
a 4G page size to be used, so comment on that as well.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Becky Bruce 2010-06-30 10:23:31 +00:00 committed by Benjamin Herrenschmidt
parent 6901c6cca1
commit d10ac3734d
1 changed files with 4 additions and 3 deletions
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7
arch/powerpc/mm/fsl_booke_mmu.c
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@ -104,9 +104,10 @@ unsigned long p_mapped_by_tlbcam(phys_addr_t pa)
}
/*
* Set up one of the I/D BAT (block address translation) register pairs.
* The parameters are not checked; in particular size must be a power
* of 4 between 4k and 256M.
* Set up a variable-size TLB entry (tlbcam). The parameters are not checked;
* in particular size must be a power of 4 between 4k and 256M (or 1G, for cpus
* that support extended page sizes). Note that while some cpus support a
* page size of 4G, we don't allow its use here.
*/
static void settlbcam(int index, unsigned long virt, phys_addr_t phys,
unsigned long size, unsigned long flags, unsigned int pid)