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Wed, 12 May 2021 13:40:56 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C74C031B; Wed, 12 May 2021 06:40:49 -0700 (PDT) Received: from arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0202F3F718; Wed, 12 May 2021 06:40:48 -0700 (PDT) Date: Wed, 12 May 2021 14:40:00 +0100 From: Dave Martin To: Mark Brown Cc: Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2 1/3] arm64/sve: Split _sve_flush macro into separate Z and predicate flushes Message-ID: <20210512133957.GD4187@arm.com> References: <20210511160446.42871-1-broonie@kernel.org> <20210511160446.42871-2-broonie@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210511160446.42871-2-broonie@kernel.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210512_064053_659862_82011707 X-CRM114-Status: GOOD ( 16.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, May 11, 2021 at 05:04:44PM +0100, Mark Brown wrote: > Trivial refactoring to support further work, no change to generated code. > > Signed-off-by: Mark Brown Reviewed-by: Dave Martin > --- > arch/arm64/include/asm/fpsimdmacros.h | 4 +++- > arch/arm64/kernel/entry-fpsimd.S | 3 ++- > 2 files changed, 5 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/include/asm/fpsimdmacros.h b/arch/arm64/include/asm/fpsimdmacros.h > index a2563992d2dc..059204477ce6 100644 > --- a/arch/arm64/include/asm/fpsimdmacros.h > +++ b/arch/arm64/include/asm/fpsimdmacros.h > @@ -213,8 +213,10 @@ > mov v\nz\().16b, v\nz\().16b > .endm > > -.macro sve_flush > +.macro sve_flush_z > _for n, 0, 31, _sve_flush_z \n > +.endm > +.macro sve_flush_p_ffr > _for n, 0, 15, _sve_pfalse \n > _sve_wrffr 0 > .endm > diff --git a/arch/arm64/kernel/entry-fpsimd.S b/arch/arm64/kernel/entry-fpsimd.S > index 3ecec60d3295..7921d58427c2 100644 > --- a/arch/arm64/kernel/entry-fpsimd.S > +++ b/arch/arm64/kernel/entry-fpsimd.S > @@ -72,7 +72,8 @@ SYM_FUNC_END(sve_load_from_fpsimd_state) > > /* Zero all SVE registers but the first 128-bits of each vector */ > SYM_FUNC_START(sve_flush_live) > - sve_flush > + sve_flush_z > + sve_flush_p_ffr > ret > SYM_FUNC_END(sve_flush_live) > > -- > 2.20.1 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel