From d10ac3734d07bee675384d22d06883b3c57b1524 Mon Sep 17 00:00:00 2001 From: Becky Bruce Date: Wed, 30 Jun 2010 10:23:31 +0000 Subject: [PATCH] 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 Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/mm/fsl_booke_mmu.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c index cdc7526e9c93..4b66a1ece6d8 100644 --- a/arch/powerpc/mm/fsl_booke_mmu.c +++ b/arch/powerpc/mm/fsl_booke_mmu.c @@ -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)