LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Arend van Spriel <arend@broadcom.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Arnd Bergmann <arnd@arndb.de>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	brcm80211-dev-list <brcm80211-dev-list@broadcom.com>,
	linux-wireless <linux-wireless@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Will Deacon <Will.Deacon@arm.com>,
	"Hante Meuleman" <meuleman@broadcom.com>,
	"hauke@hauke-m.de" <hauke@hauke-m.de>,
	David Miller <davem@davemloft.net>,
	Marek Szyprowski <m.szyprowski@samsung.com>
Subject: Re: using DMA-API on ARM
Date: Tue, 9 Dec 2014 11:19:40 +0100	[thread overview]
Message-ID: <5486CCBC.3@broadcom.com> (raw)
In-Reply-To: <5485D97D.1040404@broadcom.com>

On 12/08/14 18:01, Arend van Spriel wrote:
> On 12/08/14 17:03, Catalin Marinas wrote:
>> On Mon, Dec 08, 2014 at 03:01:32PM +0000, Arnd Bergmann wrote:
>>> [ 0.000000] PL310 OF: cache setting yield illegal associativity
>>> [ 0.000000] PL310 OF: -1069781724 calculated, only 8 and 16 legal
>>> [ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
>>> [ 0.000000] L2C-310 full line of zeros enabled for Cortex-A9
>>> [ 0.000000] L2C-310 dynamic clock gating enabled, standby mode enabled
>>> [ 0.000000] L2C-310 cache controller enabled, 16 ways, 256 kB
>>> [ 0.000000] L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x4e130001
>>
>> If the above value is correct, they should make sure bit 22 is set in
>> AUX_CTRL.
>
> Hante applied the patch and it now says:
>
> [ 0.000000] PL310 OF: cache setting yield illegal associativity
> [ 0.000000] PL310 OF: -1069781724 calculated, only 8 and 16 legal
> [ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
> [ 0.000000] L2C-310 full line of zeros enabled for Cortex-A9
> [ 0.000000] L2C-310 dynamic clock gating enabled, standby mode enabled
> [ 0.000000] L2C-310 cache controller enabled, 16 ways, 256 kB
> [ 0.000000] L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x4e530001
>
> He started running a test overnight. So will see if it hits the failure
> with this L2 cache configuration.

The issue did not trigger overnight so it seems setting bit 22 <Shared 
Attribute _Override_ Enable> solves the issue over here. Now the 
question is how to move forward with this. As I understood from Catalin 
this patch was not included as it was not considered responsibility of 
the linux kernel.

Regards,
Arend

  reply	other threads:[~2014-12-09 10:19 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-05  9:22 Arend van Spriel
2014-12-05  9:45 ` Russell King - ARM Linux
2014-12-05 12:24   ` Will Deacon
2014-12-05 12:56     ` Hante Meuleman
2014-12-05 13:23       ` Russell King - ARM Linux
2014-12-05 14:20         ` Hante Meuleman
2014-12-05 14:47           ` Arend van Spriel
2014-12-08 13:47           ` Hante Meuleman
2014-12-08 15:01             ` Arnd Bergmann
2014-12-08 15:17               ` Russell King - ARM Linux
2014-12-08 15:22                 ` Arnd Bergmann
2014-12-08 16:03               ` Catalin Marinas
2014-12-08 17:01                 ` Arend van Spriel
2014-12-09 10:19                   ` Arend van Spriel [this message]
2014-12-09 10:29                     ` Russell King - ARM Linux
2014-12-09 11:07                       ` Arend van Spriel
2014-12-09 11:54                       ` Catalin Marinas
2015-01-20 15:22                       ` Fabio Estevam
2014-12-08 16:22               ` Arend van Spriel
2014-12-08 16:38                 ` Arnd Bergmann
2014-12-08 16:47                   ` Russell King - ARM Linux
2014-12-08 16:50                   ` Catalin Marinas
2014-12-08 16:54                     ` Russell King - ARM Linux
2014-12-05 15:06         ` Russell King - ARM Linux
2014-12-05 18:28           ` Catalin Marinas
2014-12-05 19:22             ` Arend van Spriel
2014-12-05 19:25               ` Russell King - ARM Linux
2014-12-05 12:43   ` Arend van Spriel
2014-12-05 12:59     ` Russell King - ARM Linux
2014-12-05  9:52 ` Arnd Bergmann
2014-12-05 11:11   ` Russell King - ARM Linux
2014-12-05 11:49     ` Hante Meuleman
2014-12-05 17:38     ` Catalin Marinas
2014-12-05 18:24       ` Russell King - ARM Linux
2014-12-05 18:31         ` Catalin Marinas
2014-12-05 18:39 ` Catalin Marinas
2014-12-05 18:53   ` Catalin Marinas
2014-12-05 19:50     ` Arend van Spriel
2014-12-08 12:55     ` Johannes Stezenbach
2014-12-08 15:55       ` Catalin Marinas
2014-12-08 16:50         ` Johannes Stezenbach

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=5486CCBC.3@broadcom.com \
    --to=arend@broadcom.com \
    --cc=Will.Deacon@arm.com \
    --cc=arnd@arndb.de \
    --cc=brcm80211-dev-list@broadcom.com \
    --cc=catalin.marinas@arm.com \
    --cc=davem@davemloft.net \
    --cc=hauke@hauke-m.de \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=linux@arm.linux.org.uk \
    --cc=m.szyprowski@samsung.com \
    --cc=meuleman@broadcom.com \
    --subject='Re: using DMA-API on ARM' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).