Commit aff614c6 authored Dec 10, 2018 by Boris Glimcher Committed by Bjorn Helgaas Dec 12, 2018

switchtec: Set DMA coherent mask



Switchtec hardware supports 64-bit DMA, so set the correct DMA mask.  This
allows the CMA to allocate larger buffers for memory windows.

Signed-off-by: Boris Glimcher <Boris.Glimcher@emc.com>
Signed-off-by: Wesley Sheng <wesley.sheng@microchip.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>

parent 52618040

drivers/pci/switch/switchtec.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1237,6 +1237,10 @@ static int switchtec_init_pci(struct switchtec_dev *stdev,
		if (rc)
		return rc;

		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
		if (rc)
		return rc;

		pci_set_master(pdev);

		stdev->mmio = pcim_iomap_table(pdev)[0];

Admin message