diff options
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 33e538f76909..f461737e4e6c 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2685,6 +2685,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, struct azx *chip; int i, err; unsigned short gcap; + unsigned int dma_bits = 64; static struct snd_device_ops ops = { .dev_free = azx_dev_free, }; @@ -2780,9 +2781,14 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, gcap = azx_readw(chip, GCAP); snd_printdd(SFX "chipset global capabilities = 0x%x\n", gcap); + /* AMD devices support 40 or 48bit DMA, take the safe one */ + if (chip->pci->vendor == PCI_VENDOR_ID_AMD) + dma_bits = 40; + /* disable SB600 64bit support for safety */ if (chip->pci->vendor == PCI_VENDOR_ID_ATI) { struct pci_dev *p_smbus; + dma_bits = 40; p_smbus = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS, NULL); @@ -2812,9 +2818,11 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, } /* 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)); - else { + if (!(gcap & ICH6_GCAP_64OK)) + dma_bits = 32; + if (!pci_set_dma_mask(pci, DMA_BIT_MASK(dma_bits))) { + pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(dma_bits)); + } else { pci_set_dma_mask(pci, DMA_BIT_MASK(32)); pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)); } |