From 396087eaead95fcb29eb36f1e59517aeb58c545e Mon Sep 17 00:00:00 2001 From: Jaroslav Kysela <perex@perex.cz> Date: Wed, 9 Dec 2009 10:44:47 +0100 Subject: [PATCH] ALSA: hda - Terradici HDA controllers does not support 64-bit mode Confirmed from vendor and tests in RedHat bugzilla #536782 . Signed-off-by: Jaroslav Kysela <perex@perex.cz> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/pci/hda/hda_intel.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index d822bfc6cad6..efcc4f7c57f2 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2450,6 +2450,11 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, } } + /* disable 64bit DMA address for Teradici */ + /* it does not work with device 6549:1200 subsys e4a2:040b */ + if (chip->driver_type == AZX_DRIVER_TERA) + gcap &= ~ICH6_GCAP_64OK; + /* allow 64bit DMA address if supported by H/W */ if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64))) pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64)); -- GitLab