Enabling 8 cores on 5420

Enabling 8 cores on 5420

[Daniel Lezcano]

Hi all,

I am trying an upstream kernel + some patches to enable ethernet on 
arndale octa.

Unfortunately, only 4 cores boot up. The other ones fail to boot.

[12.179453] CPU6: failed to come online
[13.189479] CPU7: failed to come online
[14.199479] CPU4: failed to come online
[15.209743] CPU5: failed to come online

What should I do to enable those 8 cores ? Is there a patchset somewhere 
to do so ?

Thanks

   -- Daniel


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Re: Enabling 8 cores on 5420

[Andreas Färber]

Hi,

Am 30.05.2014 11:25, schrieb Daniel Lezcano:
> 
> I am trying an upstream kernel + some patches to enable ethernet on
> arndale octa.
> 
> Unfortunately, only 4 cores boot up. The other ones fail to boot.
> 
> [12.179453] CPU6: failed to come online
> [13.189479] CPU7: failed to come online
> [14.199479] CPU4: failed to come online
> [15.209743] CPU5: failed to come online
> 
> What should I do to enable those 8 cores ? Is there a patchset somewhere
> to do so ?

Yes, this is the reply I received just yesterday from Tushar Behera:
> Can you check after applying following two patches for Arndale-Octa
> ([1],[2])? In other words, a patch similar to [2] might be required
> for this board too if it is booting under secure mode.
> 
> [1] http://www.spinics.net/lists/linux-samsung-soc/msg31776.html
> 
> [PATCH v2 Resend 1/2] ARM: EXYNOS: Update secondary boot addr for secure mode
> 
> [2] http://www.spinics.net/lists/linux-samsung-soc/msg31777.html
> 
> [PATCH v2 Resend 2/2] ARM: dts: Add secure firmware support for Arndale-octa

The first one I tested successfully on the 5410 already.

HTH,
Andreas

-- 
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg

Re: Enabling 8 cores on 5420

[Daniel Lezcano]

On 05/30/2014 03:33 PM, Andreas Färber wrote:
> Hi,
>
> Am 30.05.2014 11:25, schrieb Daniel Lezcano:
>>
>> I am trying an upstream kernel + some patches to enable ethernet on
>> arndale octa.
>>
>> Unfortunately, only 4 cores boot up. The other ones fail to boot.
>>
>> [12.179453] CPU6: failed to come online
>> [13.189479] CPU7: failed to come online
>> [14.199479] CPU4: failed to come online
>> [15.209743] CPU5: failed to come online
>>
>> What should I do to enable those 8 cores ? Is there a patchset somewhere
>> to do so ?
>
> Yes, this is the reply I received just yesterday from Tushar Behera:
>> Can you check after applying following two patches for Arndale-Octa
>> ([1],[2])? In other words, a patch similar to [2] might be required
>> for this board too if it is booting under secure mode.
>>
>> [1] http://www.spinics.net/lists/linux-samsung-soc/msg31776.html
>>
>> [PATCH v2 Resend 1/2] ARM: EXYNOS: Update secondary boot addr for secure mode
>>
>> [2] http://www.spinics.net/lists/linux-samsung-soc/msg31777.html
>>
>> [PATCH v2 Resend 2/2] ARM: dts: Add secure firmware support for Arndale-octa
>
> The first one I tested successfully on the 5410 already.

Hi Andreas,

thx for the pointers. I tested the patches but unfortunately they don't 
enable the cpus.


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Re: Enabling 8 cores on 5420

[Andreas Färber]

Am 30.05.2014 16:56, schrieb Daniel Lezcano:
> On 05/30/2014 03:33 PM, Andreas Färber wrote:
>> Am 30.05.2014 11:25, schrieb Daniel Lezcano:
>>>
>>> I am trying an upstream kernel + some patches to enable ethernet on
>>> arndale octa.
>>>
>>> Unfortunately, only 4 cores boot up. The other ones fail to boot.
>>>
>>> [12.179453] CPU6: failed to come online
>>> [13.189479] CPU7: failed to come online
>>> [14.199479] CPU4: failed to come online
>>> [15.209743] CPU5: failed to come online
>>>
>>> What should I do to enable those 8 cores ? Is there a patchset somewhere
>>> to do so ?
>>
>> Yes, this is the reply I received just yesterday from Tushar Behera:
>>> Can you check after applying following two patches for Arndale-Octa
>>> ([1],[2])? In other words, a patch similar to [2] might be required
>>> for this board too if it is booting under secure mode.
>>>
>>> [1] http://www.spinics.net/lists/linux-samsung-soc/msg31776.html
>>>
>>> [PATCH v2 Resend 1/2] ARM: EXYNOS: Update secondary boot addr for
>>> secure mode
>>>
>>> [2] http://www.spinics.net/lists/linux-samsung-soc/msg31777.html
>>>
>>> [PATCH v2 Resend 2/2] ARM: dts: Add secure firmware support for
>>> Arndale-octa
>>
>> The first one I tested successfully on the 5410 already.
> 
> Hi Andreas,
> 
> thx for the pointers. I tested the patches but unfortunately they don't
> enable the cpus.

Oh sorry, I just read "failed to come online" but didn't notice it's
about 4-7 only. All eight are available as nodes under /cpus on for-next
[1], so no clue on my part. The Samsung guys will know better.

Cheers,
Andreas

[1]
http://git.kernel.org/cgit/linux/kernel/git/kgene/linux-samsung.git/tree/arch/arm/boot/dts/exynos5420.dtsi?h=for-next

-- 
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg

Re: Enabling 8 cores on 5420

[Andreas Färber]

Am 30.05.2014 11:25, schrieb Daniel Lezcano:
> 
> Hi all,
> 
> I am trying an upstream kernel + some patches to enable ethernet on
> arndale octa.
> 
> Unfortunately, only 4 cores boot up. The other ones fail to boot.
> 
> [12.179453] CPU6: failed to come online
> [13.189479] CPU7: failed to come online
> [14.199479] CPU4: failed to come online
> [15.209743] CPU5: failed to come online
> 
> What should I do to enable those 8 cores ? Is there a patchset somewhere
> to do so ?

Ping? Confirmed still present on Arndale Octa with kgene's for-next +
patch to get 2-4 up.

Andreas

-- 
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg

Re: Enabling 8 cores on 5420

[Alim Akhtar]

Hi
PTAL https://patchwork.kernel.org/patch/4315711/
I hope your tree already includes
http://www.gossamer-threads.com/lists/linux/kernel/1940123

Regards,
Alim

On Mon, Jun 23, 2014 at 2:32 AM, Andreas Färber <afaerber@suse.de> wrote:
> Am 30.05.2014 11:25, schrieb Daniel Lezcano:
>>
>> Hi all,
>>
>> I am trying an upstream kernel + some patches to enable ethernet on
>> arndale octa.
>>
>> Unfortunately, only 4 cores boot up. The other ones fail to boot.
>>
>> [12.179453] CPU6: failed to come online
>> [13.189479] CPU7: failed to come online
>> [14.199479] CPU4: failed to come online
>> [15.209743] CPU5: failed to come online
>>
>> What should I do to enable those 8 cores ? Is there a patchset somewhere
>> to do so ?
>
> Ping? Confirmed still present on Arndale Octa with kgene's for-next +
> patch to get 2-4 up.
>
> Andreas
>
> --
> SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
> GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html



-- 
Regards,
Alim

Re: Enabling 8 cores on 5420

[Daniel Lezcano]

On 06/22/2014 11:30 PM, Alim Akhtar wrote:
> Hi
> PTAL https://patchwork.kernel.org/patch/4315711/
> I hope your tree already includes
> http://www.gossamer-threads.com/lists/linux/kernel/1940123


Hi Alim,

I applied the patches above and set the configuration option for 
EXYNOS_MCPM but I have:

[    7.769420] CPU1: failed to boot: -19
[    7.778360] CPU2: failed to boot: -19
[    7.806411] CPU4: failed to boot: -19
[    7.811294] CPU3: failed to boot: -19
[    7.815333] CPU7: failed to boot: -19
[    7.826401] CPU6: failed to boot: -19
[    7.829711] CPU5: failed to boot: -19

Is there something I missed ?

Thanks !

   -- Daniel

> On Mon, Jun 23, 2014 at 2:32 AM, Andreas Färber <afaerber@suse.de> wrote:
>> Am 30.05.2014 11:25, schrieb Daniel Lezcano:
>>>
>>> Hi all,
>>>
>>> I am trying an upstream kernel + some patches to enable ethernet on
>>> arndale octa.
>>>
>>> Unfortunately, only 4 cores boot up. The other ones fail to boot.
>>>
>>> [12.179453] CPU6: failed to come online
>>> [13.189479] CPU7: failed to come online
>>> [14.199479] CPU4: failed to come online
>>> [15.209743] CPU5: failed to come online
>>>
>>> What should I do to enable those 8 cores ? Is there a patchset somewhere
>>> to do so ?
>>
>> Ping? Confirmed still present on Arndale Octa with kgene's for-next +
>> patch to get 2-4 up.
>>
>> Andreas
>>
>> --
>> SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
>> GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>
>


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