On Fri, Oct 02, 2015 at 03:47:40PM -0500, Jeremy Linton wrote: > Define the bit positions in the PTE and PMD for the > contiguous bit. > > Signed-off-by: Jeremy Linton <jeremy.linton@xxxxxxx> > --- > arch/arm64/include/asm/pgtable-hwdef.h | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h > index 24154b0..361352d 100644 > --- a/arch/arm64/include/asm/pgtable-hwdef.h > +++ b/arch/arm64/include/asm/pgtable-hwdef.h > @@ -55,6 +55,13 @@ > #define SECTION_MASK (~(SECTION_SIZE-1)) > > /* > + * Contiguous page definitions. > + */ > +#define CONT_RANGE (_AC(1, UL) << CONT_SHIFT) > +#define CONT_RANGE_MASK ((CONT_RANGE-1) << PAGE_SHIFT) > +#define CONT_RANGE_OFFSET(addr) (((addr)>>PAGE_SHIFT)&(CONT_RANGE-1)) This still looks confusing to me: CONT_RANGE refers to the number of contiguous ptes while CONT_RANGE_MASK refers to actual addresses. I'd rather have CONT_PTES (since we only use this for ptes currently) and CONT_MASK used instead of CONT_RANGE_MASK. This is for consistency with SECTION_MASK which we already use. -- Catalin -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
