linux-kernel - Re: [PATCH v1 07/11] intel_th: Add Global Trace Hub driver

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Message-ID: <CAB7JpEF5coQuR6kb-zHsScNPGQ1QHg6pOss+tivk+r5UHXd1jA@mail.gmail.com>
Date:	Sun, 22 Mar 2015 22:35:50 +0200
From:	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:	Joe Perches <joe@...ches.com>
Cc:	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Mathieu Poirier <mathieu.poirier@...aro.org>,
	pebolle@...cali.nl, peter.lachner@...el.com,
	norbert.schulz@...el.com, keven.boell@...el.com,
	yann.fouassier@...el.com, laurent.fert@...el.com
Subject: Re: [PATCH v1 07/11] intel_th: Add Global Trace Hub driver

On 20 March 2015 at 19:59, Joe Perches <joe@...ches.com> wrote:
> On Fri, 2015-03-20 at 19:29 +0200, Alexander Shishkin wrote:
>> Global Trace Hub (GTH) is the central component of Intel TH architecture;
>> it carries out switching between the trace sources and trace outputs, can
>> enable/disable tracing, perform STP encoding, internal buffering, control
>> backpressure from outputs to sources and so on.
>
> trivia:

Thank you for reviewing!

>> +     signed char             master[TH_CONFIGURABLE_MASTERS + 1];
>
> why signed?

I'm using -1 to mean "disabled" (0 being a valid port number).

Regards,
--
Alex
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