linux-kernel - Re: linux-next: manual merge of the arm-soc tree with the arm-perf tree

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Date:	Tue, 24 Mar 2015 14:59:02 +0000
From:	"Suzuki K. Poulose" <Suzuki.Poulose@....com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	Abhilash Kesavan <kesavan.abhilash@...il.com>,
	Olof Johansson <olof@...om.net>, Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	Will Deacon <Will.Deacon@....com>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: Re: linux-next: manual merge of the arm-soc tree with the arm-perf
 tree

On 23/03/15 21:16, Stephen Rothwell wrote:
> Hi all,
>
> On Mon, 23 Mar 2015 15:13:51 +0000 "Suzuki K. Poulose" <Suzuki.Poulose@....com> wrote:
>>
>> On 23/03/15 14:41, Abhilash Kesavan wrote:
>>>
>>> On Mon, Mar 23, 2015 at 6:03 AM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>>>>
>>>> Today's linux-next merge of the arm-soc tree got a conflict in
>>>> drivers/bus/Kconfig between commit c9966c98697a ("arm-cci: Split the
>>>> code for PMU vs driver support") from the arm-perf tree and commit
>>>> 13fbf3c8d0f7 ("drivers: bus: Sort Kconfig entries alphabetically") from
>>>> the arm-soc tree.
>>>>
>>>> I fixed it up (see below) and can carry the fix as necessary (no action
>>>> is required).
>>>
>>> Not sure if this has been reported elsewhere, but I am seeing core
>>> boot-up failures on the exynos5420 with next-20150323 due to this.
>>> Your conflict fix is missing the ARM_CCI symbol because of which the
>>> CCI does not get enabled.
>>>
>>> Suzuki, can you confirm ?
>>
>> Yes, you are right. We need the config ARM_CCI even now, which enables
>> the building of the arm-cci.c.
>>
>> Stephen,
>>
>> We need the following fix on the linux-next.
>
> Oops, sorry about that.  I have fixed up the merge resolution for today
> so that file starts like this:
>
> #
> # Bus Devices
> #
>
> menu "Bus devices"
>
> config ARM_CCI
> 	bool
>
> config ARM_CCI400_COMMON
> 	bool
> 	select ARM_CCI
>
> config ARM_CCI400_PMU
> 	bool "ARM CCI400 PMU support"
> 	default y
> 	depends on ARM || ARM64
> 	depends on HW_PERF_EVENTS
> 	select ARM_CCI400_COMMON
> 	help
> 	  Support for PMU events monitoring on the ARM CCI cache coherent
> 	  interconnect.
>
> 	  If unsure, say Y
>
> config ARM_CCI400_PORT_CTRL
> 	bool
> 	depends on ARM && OF && CPU_V7
> 	select ARM_CCI400_COMMON
> 	help
> 	  Low level power management driver for CCI400 cache coherent
> 	  interconnect for ARM platforms.

Looks good.

Thanks

Suzuki


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