linux-kernel - Re: [PATCH 2/5] perf: generic intel uncore support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 03 Apr 2012 16:28:28 +0800
From:	"Yan, Zheng" <zheng.z.yan@...el.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
CC:	mingo@...e.hu, andi@...stfloor.org, eranian@...gle.com,
	linux-kernel@...r.kernel.org, ming.m.lin@...el.com
Subject: Re: [PATCH 2/5] perf: generic intel uncore support

On 04/03/2012 06:11 AM, Peter Zijlstra wrote:
> On Sun, 2012-04-01 at 11:11 +0800, Yan, Zheng wrote:
>>
>> Because using per-cpu allocation is inconvenience for PCI uncore device.
> 
> What are those, where does one read about them and why?
> 
PCI uncore device support was added by patch 4. If using per-cpu pointer,
we have to setup the per-cpu pointer after the PCI driver's probe function
recognizes the uncore device. It means we have to first add the PCI uncore
device to a list, then call a function on all cpus to scan the list, find
the right uncore device and setup the per-cpu pointer.

Regards
Yan, Zheng
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/