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| author | Benjamin Herrenschmidt | 2014-11-24 04:17:08 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt | 2014-11-24 04:17:34 +0100 |
| commit | db79afa1e57925ba96ab18514c0ebe42a28e393e (patch) | |
| tree | a7b50376d628bf6021f941ae094e545c48d778c1 /sound/pci/hda/hda_intel.c | |
| parent | gpu/radeon: Set flag to indicate broken 64-bit MSI (diff) | |
| download | kernel-qcow2-linux-db79afa1e57925ba96ab18514c0ebe42a28e393e.tar.gz kernel-qcow2-linux-db79afa1e57925ba96ab18514c0ebe42a28e393e.tar.xz kernel-qcow2-linux-db79afa1e57925ba96ab18514c0ebe42a28e393e.zip | |
sound/radeon: Move 64-bit MSI quirk from arch to driver
A number of radeon cards have a HW limitation causing them to be
unable to generate the full 64-bit of address bits for MSIs. This
breaks MSIs on some platforms such as POWER machines.
We used to have a powerpc specific quirk to address that on a
single card, but this doesn't scale very well, this is better
put under control of the drivers who know precisely what a given
HW revision can do.
We now have a generic quirk in the PCI code. We should set it
appropriately for all radeon's from the audio driver.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
CC: <stable@vger.kernel.org>
Diffstat (limited to 'sound/pci/hda/hda_intel.c')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index bd298ba5d4df..48b6c5a3884f 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -298,7 +298,8 @@ enum { /* quirks for ATI/AMD HDMI */ #define AZX_DCAPS_PRESET_ATI_HDMI \ - (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB) + (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\ + AZX_DCAPS_NO_MSI64) /* quirks for Nvidia */ #define AZX_DCAPS_PRESET_NVIDIA \ @@ -1510,9 +1511,14 @@ static int azx_first_init(struct azx *chip) return -ENXIO; } - if (chip->msi) + if (chip->msi) { + if (chip->driver_caps & AZX_DCAPS_NO_MSI64) { + dev_dbg(card->dev, "Disabling 64bit MSI\n"); + pci->no_64bit_msi = true; + } if (pci_enable_msi(pci) < 0) chip->msi = 0; + } if (azx_acquire_irq(chip, 0) < 0) return -EBUSY; |