Re: [PATCH] arm64: uaccess: Optimize copy_to/from_user with LSUI extension

Catalin Marinas <[email protected]>
Newsgroups gmane.linux.kernel,gmane.linux.ports.arm.kernel
Message-ID <[email protected]> 
On Wed, Aug 05, 2026 at 11:52:51AM +0800, Qinxin Xia wrote:
> Add support for the ARMv9.6/LSUI (Load/Store Unprivileged Immediate)
> extension to optimize copy_from_user operations. The implementation
> uses the alternative mechanism to select between the standard unprivileged
> load-pair sequence and the new ldtp/sttp instruction at runtime based on
> hardware capability.

That's all good but do you have any numbers to back the change up?

-- 
Catalin
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