From: armando.visconti@st.com (Armando Visconti)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6
Date: Mon, 3 Dec 2012 17:44:11 +0100 [thread overview]
Message-ID: <50BCD6DB.2030200@st.com> (raw)
In-Reply-To: <1354187042-28568-1-git-send-email-armando.visconti@st.com>
On 11/29/2012 12:04 PM, Armando VISCONTI wrote:
> This patch keeps disabled the strict alignment CP15 bit for
> all armv6 and armv7 processor without the mmu. This behaviour
> is now same as in the mmu case.
>
> Signed-off-by: Armando Visconti<armando.visconti@st.com>
> ---
> arch/arm/kernel/head-nommu.S | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
> index 278cfc1..2c228a0 100644
> --- a/arch/arm/kernel/head-nommu.S
> +++ b/arch/arm/kernel/head-nommu.S
> @@ -68,7 +68,7 @@ __after_proc_init:
> * CP15 system control register value returned in r0 from
> * the CPU init function.
> */
> -#ifdef CONFIG_ALIGNMENT_TRAP
> +#if defined(CONFIG_ALIGNMENT_TRAP)&& __LINUX_ARM_ARCH__< 6
> orr r0, r0, #CR_A
> #else
> bic r0, r0, #CR_A
Any feedback on this simple patch?
Thx,
Armando
WARNING: multiple messages have this Message-ID (diff)
From: Armando Visconti <armando.visconti@st.com>
To: "linux@arm.linux.org.uk" <linux@arm.linux.org.uk>
Cc: "hsweeten@visionengravers.com" <hsweeten@visionengravers.com>,
"swarren@nvidia.com" <swarren@nvidia.com>,
"nico@linaro.org" <nico@linaro.org>,
"kgene.kim@samsung.com" <kgene.kim@samsung.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
spear-devel <spear-devel@list.st.com>
Subject: Re: [PATCH] nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6
Date: Mon, 3 Dec 2012 17:44:11 +0100 [thread overview]
Message-ID: <50BCD6DB.2030200@st.com> (raw)
In-Reply-To: <1354187042-28568-1-git-send-email-armando.visconti@st.com>
On 11/29/2012 12:04 PM, Armando VISCONTI wrote:
> This patch keeps disabled the strict alignment CP15 bit for
> all armv6 and armv7 processor without the mmu. This behaviour
> is now same as in the mmu case.
>
> Signed-off-by: Armando Visconti<armando.visconti@st.com>
> ---
> arch/arm/kernel/head-nommu.S | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
> index 278cfc1..2c228a0 100644
> --- a/arch/arm/kernel/head-nommu.S
> +++ b/arch/arm/kernel/head-nommu.S
> @@ -68,7 +68,7 @@ __after_proc_init:
> * CP15 system control register value returned in r0 from
> * the CPU init function.
> */
> -#ifdef CONFIG_ALIGNMENT_TRAP
> +#if defined(CONFIG_ALIGNMENT_TRAP)&& __LINUX_ARM_ARCH__< 6
> orr r0, r0, #CR_A
> #else
> bic r0, r0, #CR_A
Any feedback on this simple patch?
Thx,
Armando
next prev parent reply other threads:[~2012-12-03 16:44 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-29 11:04 [PATCH] nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6 Armando Visconti
2012-11-29 11:04 ` Armando Visconti
2012-12-03 16:44 ` Armando Visconti [this message]
2012-12-03 16:44 ` Armando Visconti
2012-12-03 16:51 ` Nicolas Pitre
2012-12-03 16:51 ` Nicolas Pitre
2012-12-03 16:54 ` Will Deacon
2012-12-03 16:54 ` Will Deacon
2012-12-03 17:25 ` Russell King - ARM Linux
2012-12-03 17:25 ` Russell King - ARM Linux
2012-12-03 17:46 ` Will Deacon
2012-12-03 17:46 ` Will Deacon
2012-12-04 9:36 ` Armando Visconti
2012-12-04 9:36 ` Armando Visconti
2012-12-05 19:51 ` Uwe Kleine-König
2012-12-05 19:51 ` Uwe Kleine-König
2012-12-06 10:47 ` Will Deacon
2012-12-06 10:47 ` Will Deacon
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