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.
>
next prev parent 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
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=561FDD83.1030902@samsung.com \
--to=m.smarduch@samsung.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=marc.zyngier@arm.com \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox