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From: Mario Smarduch <m.smarduch@samsung.com>
To: Marc Zyngier <marc.zyngier@arm.com>,
	"kvmarm@lists.cs.columbia.edu" <kvmarm@lists.cs.columbia.edu>
Subject: Re: its_alloc_tables() - with all BASER marked none
Date: Thu, 15 Oct 2015 10:08:19 -0700	[thread overview]
Message-ID: <561FDD83.1030902@samsung.com> (raw)
In-Reply-To: <561F5ACA.30105@arm.com>



On 10/15/2015 12:50 AM, Marc Zyngier wrote:
> On 15/10/15 02:30, Mario Smarduch wrote:
>> If its_init()/its_probe()/its_alloc_tables() finds all GITS_BASER type none, it
>> continues with ITS initialization.
>>
>> Is there a reason to continue?
> 
> Of course. There is nothing that *mandates* the ITS to request memory
> from the operating system. The HW could perfectly come with its own
> memory and not need anything at all.
> 
>> Started to look through this code recently - little confused here.
> 
> Only the beginning! ;-)

Well at this time the beginning of console freeze close to  "ITS: using cache
flushing for cmd queue". Poked around CBASER and noticed Inner cache bits are
updated but not sticky so it got me wondering.

Appears like I need to look elsewhere, like maybe my environment.

Thanks for clarifying.

- Mario

> 
> 	M.
> 

  reply	other threads:[~2015-10-15 17:06 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-15  1:30 its_alloc_tables() - with all BASER marked none Mario Smarduch
2015-10-15  7:50 ` Marc Zyngier
2015-10-15 17:08   ` Mario Smarduch [this message]
2015-10-15 17:10     ` Marc Zyngier
2015-10-15 17:12       ` Mario Smarduch

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