From mboxrd@z Thu Jan  1 00:00:00 1970
From: Vinod Koul <vinod.koul@intel.com>
Subject: Re: [PATCH 2/3] ALSA - hda: Add support for link audio
 time reporting
Date: Fri, 15 Jul 2016 11:20:25 +0530
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To: Takashi Iwai <tiwai@suse.de>
Cc: alsa-devel@alsa-project.org, patches.audio@intel.com, Hardik T Shah <hardik.t.shah@intel.com>, Guneshwor Singh <guneshwor.o.singh@intel.com>, liam.r.girdwood@linux.intel.com, broonie@kernel.org, kbuild-all@01.org
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On Fri, Jul 15, 2016 at 07:39:17AM +0200, Takashi Iwai wrote:
> > 
> > So dependency is around convert_art_to_tsc() which is x86 API.
> 
> How is defined in the spec?  I wonder it because HD-audio spec itself
> is usually CPU-neutral.

You are right. HDA spec is not x86 specfic. HDA counter report the value
of ART counter for a time snapshot.

The problem is we do not get TSC value from HDA controller :(

So we need to use asm code for conversion..

Thanks
-- 
~Vinod