linux - linux

	Commit message (Collapse)	Author	Age	Files	Lines
*	PCI: tegra: Use the DMA-API to get the MSI address	Vidya Sagar	2019-04-16	1	-9/+28
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	Since the upstream MSI memory writes are generated by downstream devices, it is logically correct to have MSI target memory coming from the DMA pool reserved for PCIe than from the general memory pool reserved for CPU access to avoid PCIe DMA addresses coinciding with MSI target address thereby raising unwanted MSI interrupts. Enforce this behaviour by retrieving the MSI address through the DMA API. Limit the MSI target address to 32-bits to make it work for PCIe endpoints that support only 32-bit MSI target address; endpoints that support 64-bit MSI target address work with 32-bit MSI target address too. Signed-off-by: Vidya Sagar <vidyas@nvidia.com> [lorenzo.pieralisi@arm.com: updated commit log] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com>
*	PCI: Collect all native drivers under drivers/pci/controller/	Shawn Lin	2018-06-08	1	-0/+2531
	Native PCI drivers for root complex devices were originally all in drivers/pci/host/. Some of these devices can also be operated in endpoint mode. Drivers for endpoint mode didn't seem to fit in the "host" directory, so we put both the root complex and endpoint drivers in per-device directories, e.g., drivers/pci/dwc/, drivers/pci/cadence/, etc. These per-device directories contain trivial Kconfig and Makefiles and clutter drivers/pci/. Make a new drivers/pci/controllers/ directory and collect all the device-specific drivers there. No functional change intended. Link: https://lkml.kernel.org/r/1520304202-232891-1-git-send-email-shawn.lin@rock-chips.com Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>