On Fri, Jan 23, 2015 at 05:32:38PM -0500, Murali Karicheri wrote: > If there is a DT node available for the root bridge's parent device, > use the dma configuration from that device node. For example, keystone > PCI devices would require dma_pfn_offset to be set correctly in the > device structure of the pci device in order to have the correct dma mask. > The DT node will have dma-ranges defined for this. Also support using > the DT property dma-coherent to allow coherent DMA operation by the > PCI device. > > This patch use the new helper function of_pci_dma_configure() to update > the device dma configuration. > > Cc: Joerg Roedel <j...@8bytes.org> > Cc: Grant Likely <grant.lik...@linaro.org> > Cc: Rob Herring <robh...@kernel.org> > Cc: Bjorn Helgaas <bhelg...@google.com> > Cc: Will Deacon <will.dea...@arm.com> > Cc: Russell King <li...@arm.linux.org.uk> > Cc: Arnd Bergmann <a...@arndb.de> > Cc: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com> > > Signed-off-by: Murali Karicheri <m-kariche...@ti.com>
I assume this series will be merged via some non-PCI tree, so: Acked-by: Bjorn Helgaas <bhelg...@google.com> > --- > drivers/pci/probe.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c > index 23212f8..d7dcd6c 100644 > --- a/drivers/pci/probe.c > +++ b/drivers/pci/probe.c > @@ -6,6 +6,7 @@ > #include <linux/delay.h> > #include <linux/init.h> > #include <linux/pci.h> > +#include <linux/of_pci.h> > #include <linux/pci_hotplug.h> > #include <linux/slab.h> > #include <linux/module.h> > @@ -1520,6 +1521,7 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus > *bus) > dev->dev.dma_mask = &dev->dma_mask; > dev->dev.dma_parms = &dev->dma_parms; > dev->dev.coherent_dma_mask = 0xffffffffull; > + of_pci_dma_configure(dev); > > pci_set_dma_max_seg_size(dev, 65536); > pci_set_dma_seg_boundary(dev, 0xffffffff); > -- > 1.7.9.5 > _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
