linux-kernel - Re: [PATCH] m68k: Unroll raw

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAMuHMdX3U8ck2sUTK9qm7=tORbzjad-OaMiqFp1vY1W-zQgYqA@mail.gmail.com>
Date:   Mon, 3 Dec 2018 13:29:19 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Finn Thain <fthain@...egraphics.com.au>
Cc:     linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] m68k: Unroll raw_outsb() loop

On Sat, Oct 13, 2018 at 3:10 AM Finn Thain <fthain@...egraphics.com.au> wrote:
> Unroll the raw_outsb() loop using the optimized assembler code from
> raw_outsw(). That code is copied and pasted, with movew changed to moveb.
>
> This improves the performance of sequential write transfers using mac_esp
> in PIO mode by 5% or 10%. (The DMA controller on the 840av/660av models is
> still unsupported so PIO transfers are used.)
>
> Tested-by: Stan Johnson <userm57@...oo.com>
> Signed-off-by: Finn Thain <fthain@...egraphics.com.au>

Reviewed-by: Geert Uytterhoeven <geert@...ux-m68k.org>
I.e., applied and queued for v4.21.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds