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Date: Thu, 01 May 2014 07:07:42 +0200
From: poma <pomidorabelisima@gmail.com>
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To: Takashi Iwai <tiwai@suse.de>
CC: Linux Kernel list <linux-kernel@vger.kernel.org>,
        Clemens Ladisch <clemens@ladisch.de>,
        Mailing-List fedora-kernel <kernel@lists.fedoraproject.org>,
        Dan Williams <dan.j.williams@intel.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Sander Eikelenboom <linux@eikelenboom.it>,
        Dave Jones <davej@redhat.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        Francois Romieu <romieu@fr.zoreil.com>,
        Eric Dumazet <eric.dumazet@gmail.com>, Wei Liu <wei.liu2@citrix.com>,
        Andrew Morton <akpm@linux-foundation.org>
Subject: Re: debug_dma_assert_idle - snd_hda_intel - cpu touching an active
 dma mapped cacheline
References: <534F01D1.9000206@gmail.com> <534F858B.4060208@ladisch.de> <53500CDB.8050802@gmail.com> <53570F1F.1000709@gmail.com> <53575099.1030501@gmail.com>
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$ file *
linux-3.15.0-0.rc3.git1.10.fc21.i686: directory
linux-3.15.0-0.rc3.git2.1.fc21.i686:  directory
linux-3.15.0-0.rc3.git3.1.fc21.i686:  directory
$
$ grep -R AZX_DCAPS_CORBRP_SELF_CLEAR 
linux-3.15.0-0.rc3.git3.1.fc21.i686/sound/pci/hda/hda_intel.c:	 AZX_DCAPS_CORBRP_SELF_CLEAR)
linux-3.15.0-0.rc3.git3.1.fc21.i686/sound/pci/hda/hda_controller.c:	if (!(chip->driver_caps & AZX_DCAPS_CORBRP_SELF_CLEAR)) {
linux-3.15.0-0.rc3.git3.1.fc21.i686/sound/pci/hda/hda_priv.h:#define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28)	/* CORBRP clears itself after reset */
$ 
$ uname -r
3.15.0-0.rc3.git3.1.fc21.i686  PASSED

Referent commit
ALSA: hda - Suppress CORBRP clear on Nvidia controller chips
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/sound/pci/hda?id=6ba736d

Eye Of The Tiger, Takashi!


poma