[PATCH v3] arm64: v8.4: Support for new floating point multiplication instructions

[Catalin Marinas]

On Fri, Jan 05, 2018 at 04:22:24PM +0800, gengdongjiu wrote:
> On 2018/1/5 15:57, Greg KH wrote:
> > On Fri, Jan 05, 2018 at 09:22:54AM +0800, gengdongjiu wrote:
> >> Hi will/catalin
> >>
> >> On 2017/12/13 18:09, Suzuki K Poulose wrote:
> >>> On 13/12/17 10:13, Dongjiu Geng wrote:
> >>>> ARM v8.4 extensions add new neon instructions for performing a
> >>>> multiplication of each FP16 element of one vector with the corresponding
> >>>> FP16 element of a second vector, and to add or subtract this without an
> >>>> intermediate rounding to the corresponding FP32 element in a third vector.
> >>>>
> >>>> This patch detects this feature and let the userspace know about it via a
> >>>> HWCAP bit and MRS emulation.
> >>>>
> >>>> Cc: Dave Martin <Dave.Martin at arm.com>
> >>>> Cc: Suzuki K Poulose <suzuki.poulose at arm.com>
> >>>> Signed-off-by: Dongjiu Geng <gengdongjiu at huawei.com>
> >>>> Reviewed-by: Dave Martin <Dave.Martin at arm.com>
> >>>
> >>> Looks good to me.
> >>>
> >>> Reviewed-by: Suzuki K Poulose <suzuki.poulose at arm.com>
> >>
> >>  sorry to disturb you. Reminder, hope this patch can be applied to Linux 4.15-rc7.
> > 
> > New features should not be going into 4.15-rc, that should be a 4.16-rc1
> > thing, right?
> 
> It is also great if it can be applied to 4.16-rc1. Thanks a lot!

I will queue it for 4.16-rc1.

-- 
Catalin