On 03/18/13 11:34, Will Deacon wrote: > On Mon, Mar 18, 2013 at 06:28:57PM +0000, Stephen Boyd wrote: >> From: Stepan Moskovchenko <[email protected]> >> >> Some early versions of the Krait CPU design incorrectly indicate >> that they only support the UDIV and SDIV instructions in Thumb >> mode when they actually support them in ARM and Thumb mode. It >> seems that these CPUs follow the DDI0406B ARM ARM which has two >> possible values for the divide instructions field, instead of the >> DDI0406C document which has three possible values. >> >> Work around this problem by checking the MIDR against Krait CPUs >> with this faulty ISAR0 register and force the hwcaps to indicate >> support in both modes. >> >> Cc: Will Deacon <[email protected]> >> Signed-off-by: Stepan Moskovchenko <[email protected]> >> [sboyd: Rewrote commit text to reflect real reasoning now that >> we autodetect udiv/sdiv] >> Signed-off-by: Stephen Boyd <[email protected]> >> --- >> arch/arm/mm/proc-v7.S | 15 +++++++++++++++ >> 1 file changed, 15 insertions(+) > Acked-by: Will Deacon <[email protected]> >
Thanks. Put all three in the patch tracker. -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
