linux_dsm_epyc7002/drivers/pci/controller
Zachary Zhang 91a2968e24 PCI: aardvark: Size bridges before resources allocation
The PCIE I/O and MEM resource allocation mechanism is that root bus
goes through the following steps:

1. Check PCI bridges' range and computes I/O and Mem base/limits.

2. Sort all subordinate devices I/O and MEM resource requirements and
   allocate the resources and writes/updates subordinate devices'
   requirements to PCI bridges I/O and Mem MEM/limits registers.

Currently, PCI Aardvark driver only handles the second step and lacks
the first step, so there is an I/O and MEM resource allocation failure
when using a PCI switch. This commit fixes that by sizing bridges
before doing the resource allocation.

Fixes: 8c39d71036 ("PCI: aardvark: Add Aardvark PCI host controller
driver")
Signed-off-by: Zachary Zhang <zhangzg@marvell.com>
[Thomas: edit commit log.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: <stable@vger.kernel.org>
2018-07-06 13:08:04 +01:00
..
dwc
Kconfig
Makefile
pci-aardvark.c PCI: aardvark: Size bridges before resources allocation 2018-07-06 13:08:04 +01:00
pci-ftpci100.c
pci-host-common.c
pci-host-generic.c
pci-hyperv.c
pci-mvebu.c
pci-rcar-gen2.c
pci-tegra.c
pci-thunder-ecam.c
pci-thunder-pem.c
pci-v3-semi.c
pci-versatile.c
pci-xgene-msi.c
pci-xgene.c
pcie-altera-msi.c
pcie-altera.c
pcie-cadence-ep.c
pcie-cadence-host.c
pcie-cadence.c
pcie-cadence.h
pcie-iproc-bcma.c
pcie-iproc-msi.c
pcie-iproc-platform.c
pcie-iproc.c
pcie-iproc.h
pcie-mediatek.c
pcie-mobiveil.c
pcie-rcar.c
pcie-rockchip-ep.c
pcie-rockchip-host.c
pcie-rockchip.c
pcie-rockchip.h
pcie-tango.c
pcie-xilinx-nwl.c
pcie-xilinx.c
vmd.c