Re: debug_dma_assert_idle - snd_hda_intel - cpu touching an active dma mapped cacheline

From: poma
Date: Thu May 01 2014 - 01:07:56 EST



$ 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


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