* Re: [PATCH 1/2] ARM: default PHYS_OFFSET if !MMU
@ 2013-11-13 11:46 ` Jonathan Austin
0 siblings, 0 replies; 13+ messages in thread
From: Jonathan Austin @ 2013-11-13 11:46 UTC (permalink / raw)
To: Ming Lei
Cc: Russell King, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Rusty Russell,
stable@vger.kernel.org
Hi Ming,
On 13/11/13 11:15, Ming Lei wrote:
> From: Jonathan Austin <jonathan.austin@arm.com>
>
> Set CONFIG_PAGE_OFFSET as PHYS_OFFSET when !MMU so that
> we can keep CONFIG_PAGE_OFFSET same with PAGE_OFFSET.
>
I'm not so sure about this commit message - I don't think
it makes sense...Should it not be more like:
------->8-------
Subject: ARM: set PAGE_OFFSET = PHYS_OFFSET if !MMU
With !MMU we still set PAGE_OFFSET to 0xC0000000, which
makes little sense and causes a regression on !MMU after
f6537f2f0eba4eba ("scripts/kallsyms: filter symbols not
kernel address space")
This patch sets PAGE_OFFSET to PHYS_OFFSET in the !MMU
case, fixing the regression (Tested on Cortex-R7/Vexpress)
--------8<---------
Russell: Will you pick this patch up from the list or does
it need to go in through the patch system?
Jonny
> This patch and patch 2/2 fix regression on !MMU by
> f6537f2f0eba4eba("scripts/kallsyms: filter symbols not
> in kernel address space")
>
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
> Signed-off-by: Ming Lei <tom.leiming@gmail.com>
> ---
> arch/arm/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 799ef94..db708c4 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -1560,6 +1560,7 @@ endchoice
>
> config PAGE_OFFSET
> hex
> + default PHYS_OFFSET if !MMU
> default 0x40000000 if VMSPLIT_1G
> default 0x80000000 if VMSPLIT_2G
> default 0xC0000000
>
^ permalink raw reply [flat|nested] 13+ messages in thread* [PATCH 1/2] ARM: default PHYS_OFFSET if !MMU
2013-11-13 11:46 ` Jonathan Austin
(?)
@ 2013-11-13 13:39 ` Uwe Kleine-König
-1 siblings, 0 replies; 13+ messages in thread
From: Uwe Kleine-König @ 2013-11-13 13:39 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Nov 13, 2013 at 11:46:49AM +0000, Jonathan Austin wrote:
> Hi Ming,
>
> On 13/11/13 11:15, Ming Lei wrote:
> > From: Jonathan Austin <jonathan.austin@arm.com>
> >
> > Set CONFIG_PAGE_OFFSET as PHYS_OFFSET when !MMU so that
> > we can keep CONFIG_PAGE_OFFSET same with PAGE_OFFSET.
> >
>
> I'm not so sure about this commit message - I don't think
> it makes sense...Should it not be more like:
>
> ------->8-------
> Subject: ARM: set PAGE_OFFSET = PHYS_OFFSET if !MMU
>
> With !MMU we still set PAGE_OFFSET to 0xC0000000, which
> makes little sense and causes a regression on !MMU after
> f6537f2f0eba4eba ("scripts/kallsyms: filter symbols not
> kernel address space")
>
> This patch sets PAGE_OFFSET to PHYS_OFFSET in the !MMU
> case, fixing the regression (Tested on Cortex-R7/Vexpress)
> --------8<---------
I like this commit log better, too.
As CONFIG_PAGE_OFFSET is only used in scripts/kallsyms.c and
scripts/link-vmlinux.sh for !MMU.
Booting on efm32 with this patch works just fine, so if you want add my
Tested-by. But I'm unsure how valuable it is as I don't see a breakage
without it.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-K?nig |
Industrial Linux Solutions | http://www.pengutronix.de/ |
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH 1/2] ARM: default PHYS_OFFSET if !MMU
@ 2013-11-13 13:39 ` Uwe Kleine-König
0 siblings, 0 replies; 13+ messages in thread
From: Uwe Kleine-König @ 2013-11-13 13:39 UTC (permalink / raw)
To: Jonathan Austin
Cc: Ming Lei, stable@vger.kernel.org, Rusty Russell, Russell King,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
On Wed, Nov 13, 2013 at 11:46:49AM +0000, Jonathan Austin wrote:
> Hi Ming,
>
> On 13/11/13 11:15, Ming Lei wrote:
> > From: Jonathan Austin <jonathan.austin@arm.com>
> >
> > Set CONFIG_PAGE_OFFSET as PHYS_OFFSET when !MMU so that
> > we can keep CONFIG_PAGE_OFFSET same with PAGE_OFFSET.
> >
>
> I'm not so sure about this commit message - I don't think
> it makes sense...Should it not be more like:
>
> ------->8-------
> Subject: ARM: set PAGE_OFFSET = PHYS_OFFSET if !MMU
>
> With !MMU we still set PAGE_OFFSET to 0xC0000000, which
> makes little sense and causes a regression on !MMU after
> f6537f2f0eba4eba ("scripts/kallsyms: filter symbols not
> kernel address space")
>
> This patch sets PAGE_OFFSET to PHYS_OFFSET in the !MMU
> case, fixing the regression (Tested on Cortex-R7/Vexpress)
> --------8<---------
I like this commit log better, too.
As CONFIG_PAGE_OFFSET is only used in scripts/kallsyms.c and
scripts/link-vmlinux.sh for !MMU.
Booting on efm32 with this patch works just fine, so if you want add my
Tested-by. But I'm unsure how valuable it is as I don't see a breakage
without it.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-K�nig |
Industrial Linux Solutions | http://www.pengutronix.de/ |
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH 1/2] ARM: default PHYS_OFFSET if !MMU
@ 2013-11-13 13:39 ` Uwe Kleine-König
0 siblings, 0 replies; 13+ messages in thread
From: Uwe Kleine-König @ 2013-11-13 13:39 UTC (permalink / raw)
To: Jonathan Austin
Cc: Ming Lei, stable@vger.kernel.org, Rusty Russell, Russell King,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
On Wed, Nov 13, 2013 at 11:46:49AM +0000, Jonathan Austin wrote:
> Hi Ming,
>
> On 13/11/13 11:15, Ming Lei wrote:
> > From: Jonathan Austin <jonathan.austin@arm.com>
> >
> > Set CONFIG_PAGE_OFFSET as PHYS_OFFSET when !MMU so that
> > we can keep CONFIG_PAGE_OFFSET same with PAGE_OFFSET.
> >
>
> I'm not so sure about this commit message - I don't think
> it makes sense...Should it not be more like:
>
> ------->8-------
> Subject: ARM: set PAGE_OFFSET = PHYS_OFFSET if !MMU
>
> With !MMU we still set PAGE_OFFSET to 0xC0000000, which
> makes little sense and causes a regression on !MMU after
> f6537f2f0eba4eba ("scripts/kallsyms: filter symbols not
> kernel address space")
>
> This patch sets PAGE_OFFSET to PHYS_OFFSET in the !MMU
> case, fixing the regression (Tested on Cortex-R7/Vexpress)
> --------8<---------
I like this commit log better, too.
As CONFIG_PAGE_OFFSET is only used in scripts/kallsyms.c and
scripts/link-vmlinux.sh for !MMU.
Booting on efm32 with this patch works just fine, so if you want add my
Tested-by. But I'm unsure how valuable it is as I don't see a breakage
without it.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 1/2] ARM: default PHYS_OFFSET if !MMU
2013-11-13 11:46 ` Jonathan Austin
@ 2013-12-04 16:39 ` Jonathan Austin
-1 siblings, 0 replies; 13+ messages in thread
From: Jonathan Austin @ 2013-12-04 16:39 UTC (permalink / raw)
To: linux-arm-kernel
Hi all,
On 13/11/13 11:46, Jonathan Austin wrote:
> Hi Ming,
>
> On 13/11/13 11:15, Ming Lei wrote:
>> From: Jonathan Austin <jonathan.austin@arm.com>
>>
>> Set CONFIG_PAGE_OFFSET as PHYS_OFFSET when !MMU so that
>> we can keep CONFIG_PAGE_OFFSET same with PAGE_OFFSET.
>>
>
> I'm not so sure about this commit message - I don't think
> it makes sense...Should it not be more like:
>
> ------->8-------
> Subject: ARM: set PAGE_OFFSET = PHYS_OFFSET if !MMU
>
> With !MMU we still set PAGE_OFFSET to 0xC0000000, which
> makes little sense and causes a regression on !MMU after
> f6537f2f0eba4eba ("scripts/kallsyms: filter symbols not
> kernel address space")
>
> This patch sets PAGE_OFFSET to PHYS_OFFSET in the !MMU
> case, fixing the regression (Tested on Cortex-R7/Vexpress)
> --------8<---------
>
> Russell: Will you pick this patch up from the list or does
> it need to go in through the patch system?
What's the status of this patch? Shall I put it in the patch system with
the commit message above? Or is it going via someone else?
Jonny
>
> Jonny
>
>> This patch and patch 2/2 fix regression on !MMU by
>> f6537f2f0eba4eba("scripts/kallsyms: filter symbols not
>> in kernel address space")
>>
>> Cc: <stable@vger.kernel.org>
>> Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
>> Signed-off-by: Ming Lei <tom.leiming@gmail.com>
>> ---
>> arch/arm/Kconfig | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index 799ef94..db708c4 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -1560,6 +1560,7 @@ endchoice
>>
>> config PAGE_OFFSET
>> hex
>> + default PHYS_OFFSET if !MMU
>> default 0x40000000 if VMSPLIT_1G
>> default 0x80000000 if VMSPLIT_2G
>> default 0xC0000000
>>
>
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH 1/2] ARM: default PHYS_OFFSET if !MMU
@ 2013-12-04 16:39 ` Jonathan Austin
0 siblings, 0 replies; 13+ messages in thread
From: Jonathan Austin @ 2013-12-04 16:39 UTC (permalink / raw)
To: Jonathan Austin
Cc: Ming Lei, stable@vger.kernel.org, Rusty Russell, Russell King,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Hi all,
On 13/11/13 11:46, Jonathan Austin wrote:
> Hi Ming,
>
> On 13/11/13 11:15, Ming Lei wrote:
>> From: Jonathan Austin <jonathan.austin@arm.com>
>>
>> Set CONFIG_PAGE_OFFSET as PHYS_OFFSET when !MMU so that
>> we can keep CONFIG_PAGE_OFFSET same with PAGE_OFFSET.
>>
>
> I'm not so sure about this commit message - I don't think
> it makes sense...Should it not be more like:
>
> ------->8-------
> Subject: ARM: set PAGE_OFFSET = PHYS_OFFSET if !MMU
>
> With !MMU we still set PAGE_OFFSET to 0xC0000000, which
> makes little sense and causes a regression on !MMU after
> f6537f2f0eba4eba ("scripts/kallsyms: filter symbols not
> kernel address space")
>
> This patch sets PAGE_OFFSET to PHYS_OFFSET in the !MMU
> case, fixing the regression (Tested on Cortex-R7/Vexpress)
> --------8<---------
>
> Russell: Will you pick this patch up from the list or does
> it need to go in through the patch system?
What's the status of this patch? Shall I put it in the patch system with
the commit message above? Or is it going via someone else?
Jonny
>
> Jonny
>
>> This patch and patch 2/2 fix regression on !MMU by
>> f6537f2f0eba4eba("scripts/kallsyms: filter symbols not
>> in kernel address space")
>>
>> Cc: <stable@vger.kernel.org>
>> Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
>> Signed-off-by: Ming Lei <tom.leiming@gmail.com>
>> ---
>> arch/arm/Kconfig | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index 799ef94..db708c4 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -1560,6 +1560,7 @@ endchoice
>>
>> config PAGE_OFFSET
>> hex
>> + default PHYS_OFFSET if !MMU
>> default 0x40000000 if VMSPLIT_1G
>> default 0x80000000 if VMSPLIT_2G
>> default 0xC0000000
>>
>
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
^ permalink raw reply [flat|nested] 13+ messages in thread