public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Andi Kleen <ak@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: kan.liang@intel.com, mingo@redhat.com,
	linux-kernel@vger.kernel.org, acme@kernel.org, jolsa@redhat.com,
	tglx@linutronix.de, eranian@google.com
Subject: Re: [PATCH V5] perf: Add PERF_SAMPLE_PHYS_ADDR
Date: Tue, 22 Aug 2017 10:31:04 -0700	[thread overview]
Message-ID: <20170822173104.GY28715@tassilo.jf.intel.com> (raw)
In-Reply-To: <20170822170736.GI32112@worktop.programming.kicks-ass.net>

> Is this in any way x86 specific? AFAICT this should work in generic code
> as long as data->addr is provided.

It won't work on architectures that split the address space for user/kernel
(if TASK_SIZE is meaningless). But perhaps some generic config for that would
work.

-Andi

      parent reply	other threads:[~2017-08-22 17:31 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-17 18:17 [PATCH V5] perf: Add PERF_SAMPLE_PHYS_ADDR kan.liang
2017-08-22 16:56 ` Peter Zijlstra
2017-08-22 17:58   ` Liang, Kan
2017-08-22 18:21     ` Peter Zijlstra
2017-08-22 17:07 ` Peter Zijlstra
2017-08-22 17:15   ` Liang, Kan
2017-08-22 17:31   ` Andi Kleen [this message]

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=20170822173104.GY28715@tassilo.jf.intel.com \
    --to=ak@linux.intel.com \
    --cc=acme@kernel.org \
    --cc=eranian@google.com \
    --cc=jolsa@redhat.com \
    --cc=kan.liang@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=peterz@infradead.org \
    --cc=tglx@linutronix.de \
    /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