diff options
| author |   Dave Jiang <dave.jiang@intel.com> | 2016-12-13 11:15:27 -0700 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2017-01-02 08:12:59 +0530 |
| commit | 34a31f0af84158955a9747fb5c6712da5bbb5331 (patch) | |
| tree | 43f719d89f81a27575c8877086f8085747e6c25e /drivers/dma | |
| parent | dmaengine: ioatdma: Add Skylake PCI Dev ID (diff) | |
| download | linux-dev-34a31f0af84158955a9747fb5c6712da5bbb5331.tar.xz linux-dev-34a31f0af84158955a9747fb5c6712da5bbb5331.zip | |
dmaengine: ioatdma: workaround SKX ioatdma version
The Skylake ioatdma is technically CBDMA 3.2+ and contains the same hardware
bits with some additional 3.3 features, but it's not really 3.3 where the
driver is concerned.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ioat/init.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c index 51b2b643ba71..ace5cb2cb12f 100644 --- a/drivers/dma/ioat/init.c +++ b/drivers/dma/ioat/init.c @@ -1364,6 +1364,8 @@ static int ioat_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) device->version = readb(device->reg_base + IOAT_VER_OFFSET); if (device->version >= IOAT_VER_3_0) { + if (is_skx_ioat(pdev)) + device->version = IOAT_VER_3_2; err = ioat3_dma_probe(device, ioat_dca_enabled); if (device->version >= IOAT_VER_3_3) |