Date: Fri, 11 Jul 2014 10:11:07 +0200
From: Jiri Olsa <jolsa@redhat.com>
To: Stephane Eranian <eranian@google.com>
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, mingo@elte.hu,
        ak@linux.intel.com, acme@redhat.com, namhyung@kernel.org
Subject: Re: [PATCH 1/4] perf: add ability to sample machine state on
 interrupt
Message-ID: <20140711081107.GB21557@krava.redhat.com>
References: <1404857759-25105-1-git-send-email-eranian@google.com>
 <1404857759-25105-2-git-send-email-eranian@google.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1404857759-25105-2-git-send-email-eranian@google.com>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org

On Wed, Jul 09, 2014 at 12:15:56AM +0200, Stephane Eranian wrote:
> Enable capture of interrupted machine state in each
> sample.
> 
> Registers to sample are passed per event in the
> sample_regs_intr bitmask.
> 
> To sample interrupt machine state, the 
> PERF_SAMPLE_INTR_REGS must be passed in
> sample_type.
> 
> The list of available registers is arch
> dependent and provided by asm/perf_regs.h
> 
> Registers are laid out as u64 in the order
> of the bit order of sample_intr_regs.
                      ^^^ sample_regs_intr

just crossed my ming we want to use 'kernel' here and call it 'sample_regs_kernel',
since we already have sample_regs_user. Also for events other than HW, the sample
does not happen in interrupt..  anyway:

Reviewed-by: Jiri Olsa <jolsa@kernel.org>

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