diff options
| author |   Boris Glimcher <Boris.Glimcher@emc.com> | 2018-12-10 17:12:21 +0800 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2018-12-12 16:31:54 -0600 |
| commit | aff614c6339c1ee2a74ea0afc491d6e30d0bad61 (patch) | |
| tree | c6925ee9e576627f085c3af80723f2373a3e635e /drivers/pci/switch | |
| parent | switchtec: Remove immediate status check after submitting MRPC command (diff) | |
| download | linux-dev-aff614c6339c1ee2a74ea0afc491d6e30d0bad61.tar.xz linux-dev-aff614c6339c1ee2a74ea0afc491d6e30d0bad61.zip | |
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>
Diffstat (limited to 'drivers/pci/switch')
| -rw-r--r-- | drivers/pci/switch/switchtec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index d2bca2dd9889..480107ecb2ab 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -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]; |