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From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Christophe Leroy <christophe.leroy@c-s.fr>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Segher Boessenkool <segher@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] powerpc: slightly improve cache helpers
Date: Mon,  8 Jul 2019 11:19:30 +1000 (AEST)	[thread overview]
Message-ID: <45hnfp6SlLz9sP0@ozlabs.org> (raw)
In-Reply-To: <c6ff2faba7fbb56a7f5b5f08cd3453f89fc0aaf4.1557480165.git.christophe.leroy@c-s.fr>

On Fri, 2019-05-10 at 09:24:48 UTC, Christophe Leroy wrote:
> Cache instructions (dcbz, dcbi, dcbf and dcbst) take two registers
> that are summed to obtain the target address. Using 'Z' constraint
> and '%y0' argument gives GCC the opportunity to use both registers
> instead of only one with the second being forced to 0.
> 
> Suggested-by: Segher Boessenkool <segher@kernel.crashing.org>
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/6c5875843b87c3adea2beade9d1b8b3d4523900a

cheers

  reply	other threads:[~2019-07-08  1:28 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-10  9:24 [PATCH v2] powerpc: slightly improve cache helpers Christophe Leroy
2019-07-08  1:19 ` Michael Ellerman [this message]
2019-07-08 19:14   ` Nathan Chancellor
2019-07-09  5:04     ` Christophe Leroy
2019-07-09  6:49       ` Nathan Chancellor
2019-07-19  3:24         ` Nathan Chancellor
2019-07-19 15:23           ` Segher Boessenkool
2019-07-19 16:04             ` Nathan Chancellor
2019-07-21  7:58               ` Nathan Chancellor
2019-07-21 18:01                 ` Segher Boessenkool
2019-07-22  2:41                   ` Nathan Chancellor
2019-07-22  6:19                     ` Segher Boessenkool
2019-07-22 17:21                       ` Nick Desaulniers
2019-07-22 17:58                         ` Segher Boessenkool
2019-07-25 21:30                           ` Nick Desaulniers
2019-07-29 20:28                             ` Nick Desaulniers
2019-07-22 10:15                   ` Michael Ellerman
2019-07-22 15:18                     ` Segher Boessenkool
2019-07-22 23:21                       ` Michael Ellerman
2019-07-25 13:22                         ` Segher Boessenkool
2019-07-22  0:53                 ` [PATCH] powerpc: Test broken dcbz kbuild test robot
2019-07-09 13:35       ` [PATCH v2] powerpc: slightly improve cache helpers Segher Boessenkool

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