[PATCH v4 0/8] arm64/sve: First steps towards optimizing syscalls

Will Deacon will at kernel.org
Mon Sep 21 14:17:37 EDT 2020


On Fri, 28 Aug 2020 19:11:47 +0100, Mark Brown wrote:
> This is a first attempt to optimize the syscall path when the user
> application uses SVE. The patch series was originally written by Julien
> Grall but has been left for a long time, I've updated it to current
> kernels and tried to address the pending review feedback that I found
> (which was mostly documentation issues). I may have missed some things
> there, apologies if I did, and one thing I've not yet done is produced a
> diagram of the states the relevant TIF_ flags can have - I need to work
> out a sensible format for that.
> 
> [...]

Applied 1-6 to arm64 (for-next/fpsimd), thanks!

[1/8] arm64/fpsimd: Update documentation of do_sve_acc
      https://git.kernel.org/arm64/c/f186a84d8abe
[2/8] arm64/signal: Update the comment in preserve_sve_context
      https://git.kernel.org/arm64/c/68a4c52e55e0
[3/8] arm64/fpsimdmacros: Allow the macro "for" to be used in more cases
      https://git.kernel.org/arm64/c/6d40f05fad0b
[4/8] arm64/fpsimdmacros: Introduce a macro to update ZCR_EL1.LEN
      https://git.kernel.org/arm64/c/315cf047d230
[5/8] arm64/sve: Implement a helper to flush SVE registers
      https://git.kernel.org/arm64/c/1e530f1352a2
[6/8] arm64/sve: Implement a helper to load SVE registers from FPSIMD state
      https://git.kernel.org/arm64/c/9c4b4c701e53

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev



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