From: Benjamin Herrenschmidt <benh@au1.ibm.com>
To: Christophe Lombard <clombard@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org, fbarrat@linux.vnet.ibm.com,
vaibhav@linux.vnet.ibm.com, andrew.donnellan@au1.ibm.com
Subject: Re: [PATCH] cxl: Add support for ASB_Notify on POWER9
Date: Fri, 24 Nov 2017 07:41:08 +1100 [thread overview]
Message-ID: <1511469668.2466.48.camel@au1.ibm.com> (raw)
In-Reply-To: <1511435132-24020-1-git-send-email-clombard@linux.vnet.ibm.com>
On Thu, 2017-11-23 at 12:05 +0100, Christophe Lombard wrote:
> The POWER9 core supports a new feature: ASB_Notify which requires the
> support of the Special Purpose Register: TIDR.
>
> The ASB_Notify command, generated by the AFU, will attempt to
> wake-up the host thread identified by the particular LPID:PID:TID.
>
> This patch assign a unique TIDR (thread id) for the current thread which
> will be used in the process element entry.
Is that keyd off some device-tree property or similar ? There is no
guarantee that the TIDR and ASB_Notify still exist on future chips...
Ben.
next prev parent reply other threads:[~2017-11-23 20:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-23 11:05 [PATCH] cxl: Add support for ASB_Notify on POWER9 Christophe Lombard
2017-11-23 14:16 ` Vaibhav Jain
2017-11-23 16:15 ` christophe lombard
2017-11-23 20:41 ` Benjamin Herrenschmidt [this message]
2017-11-24 10:14 ` christophe lombard
2017-11-24 13:02 ` Benjamin Herrenschmidt
2017-11-24 16:37 ` christophe lombard
2017-11-24 19:54 ` Benjamin Herrenschmidt
2017-11-27 4:03 ` Michael Ellerman
2017-11-27 10:17 ` christophe lombard
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=1511469668.2466.48.camel@au1.ibm.com \
--to=benh@au1.ibm.com \
--cc=andrew.donnellan@au1.ibm.com \
--cc=clombard@linux.vnet.ibm.com \
--cc=fbarrat@linux.vnet.ibm.com \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=vaibhav@linux.vnet.ibm.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;
as well as URLs for NNTP newsgroup(s).