diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2016-12-13 11:15:27 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-06 18:59:46 -0700 |
| commit | c2804b21f2e7f46f76500aa58850127b31054c84 (patch) | |
| tree | 5be330111812f5b7c0cc15e356f3278dcde7abd5 | |
| parent | 2987ce159fb9b0894d9bf000b8317e07cfed3fa8 (diff) | |
dmaengine: ioatdma: workaround SKX ioatdma version
[ Upstream commit 34a31f0af84158955a9747fb5c6712da5bbb5331 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 b45b0363f7f6..0dea6d55f0ff 100644 --- a/drivers/dma/ioat/init.c +++ b/drivers/dma/ioat/init.c @@ -1357,6 +1357,8 @@ 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) |