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From: Sudeep.KarkadaNagesha@arm.com (Sudeep KarkadaNagesha)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/5] ARM: DT: remove redundant DT related code
Date: Tue, 23 Jul 2013 13:36:32 +0100	[thread overview]
Message-ID: <51EE78D0.50803@arm.com> (raw)
In-Reply-To: <51EE779A.8000205@monstr.eu>

On 23/07/13 13:31, Michal Simek wrote:
> On 07/23/2013 01:32 PM, Sudeep KarkadaNagesha wrote:
>> From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
>>
>> Hi,
>>
>> As part of my changes to remove duplicate code for parsing cpu nodes
>> in the device tree, I found few unnecessary code mostly around smp_init_cpus.
>> Most of the ARM Cortex A9 based platforms use SCU to get the number of cpus
>> while many others depend on the device tree.
>>
>> Even on DT based platforms using SCU, they can be made to depend on DT
>> to cpu count simplifying smp_init_cpus. In fact arm_dt_init_cpu_maps called
>> before smp_init_cpus, already does the device tree parsing, validating
>> nr_cpu_ids and setting the cpu_possible_mask appropriately. 
>>
>> However this series targets only the platforms using DT for cpu count
>> (i.e. not using SCU)
> 
> Just a note. Zynq is using SCU to get cpu count not DT.
> 
Correct, when I saw that vexpress and zynq were only 2 platforms
setting cpu_present_mask which is unnecessary, I added Zynq last minute
to this series.

Regards,
Sudeep

  reply	other threads:[~2013-07-23 12:36 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-23 11:32 [PATCH 0/5] ARM: DT: remove redundant DT related code Sudeep KarkadaNagesha
2013-07-23 11:32 ` [PATCH 1/5] ARM: keystone: remove redundant smp_init_cpus definition Sudeep KarkadaNagesha
2013-07-23 13:26   ` Santosh Shilimkar
2013-07-23 11:32 ` [PATCH 2/5] ARM: vexpress: remove redundant vexpress_dt_cpus_num to get cpu count Sudeep KarkadaNagesha
2013-08-09  9:25   ` Sudeep KarkadaNagesha
2013-07-23 11:32 ` [PATCH 3/5] ARM: mach-mvebu: remove redundant DT parsing and validation Sudeep KarkadaNagesha
2013-08-08 14:54   ` Sudeep KarkadaNagesha
2013-08-08 15:19     ` Gregory CLEMENT
2013-08-08 15:50       ` Jason Cooper
2013-08-09 13:11   ` Jason Cooper
2013-07-23 11:32 ` [PATCH 4/5] ARM: highbank: remove redundant smp_init_cpus definition Sudeep KarkadaNagesha
2013-07-23 15:03   ` Rob Herring
2013-07-23 15:34     ` Sudeep KarkadaNagesha
2013-07-23 11:32 ` [PATCH 5/5] ARM: zynq: remove unnecessary setting of cpu_present_mask Sudeep KarkadaNagesha
2013-07-23 12:31 ` [PATCH 0/5] ARM: DT: remove redundant DT related code Michal Simek
2013-07-23 12:36   ` Sudeep KarkadaNagesha [this message]
2013-07-23 19:45 ` Nicolas Pitre
2013-07-24 10:48   ` Sudeep KarkadaNagesha

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