diff options
Diffstat (limited to 'sound/pci/hda/hda_intel.c')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index b33602e64d17..97d33a48ff17 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -40,6 +40,7 @@ #ifdef CONFIG_X86 /* for snoop control */ +#include <linux/dma-map-ops.h> #include <asm/set_memory.h> #include <asm/cpufeature.h> #endif @@ -306,7 +307,7 @@ enum { /* quirks for ATI HDMI with snoop off */ #define AZX_DCAPS_PRESET_ATI_HDMI_NS \ - (AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF) + (AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_AMD_ALLOC_FIX) /* quirks for AMD SB */ #define AZX_DCAPS_PRESET_AMD_SB \ @@ -1702,6 +1703,13 @@ static void azx_check_snoop_available(struct azx *chip) if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF) snoop = false; +#ifdef CONFIG_X86 + /* check the presence of DMA ops (i.e. IOMMU), disable snoop conditionally */ + if ((chip->driver_caps & AZX_DCAPS_AMD_ALLOC_FIX) && + !get_dma_ops(chip->card->dev)) + snoop = false; +#endif + chip->snoop = snoop; if (!snoop) { dev_info(chip->card->dev, "Force to non-snoop mode\n"); |