Commit 34a31f0a authored Dec 13, 2016 by Dave Jiang Committed by Vinod Koul Jan 02, 2017

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>

parent 1594c18f

drivers/dma/ioat/init.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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)

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