[PATCH v2 0/2] pci: xgene: Add multiple memory ranges support
From: Duc Dang <hidden>
Date: 2015-06-30 18:23:24
Also in:
linux-devicetree, linux-pci, lkml
From: Duc Dang <hidden>
Date: 2015-06-30 18:23:24
Also in:
linux-devicetree, linux-pci, lkml
This patch set adds 1 large (up to 64GB) memory window for each PCIe controller nodes in X-Gene device tree and fix PCIe controller driver to handle multiple memory ranges correctly. These changes are required to support PCIe devices that has huge BAR. v2 changes: 1. Separate device-tree changes and driver changes into different patches 2. Explicitly define new large window as 64-bit prefetchable in dts 3. Use IORESOURCE_PREFETCH flag to determine which PCIe controller register to be used to configure the memory ranges. arch/arm64/boot/dts/apm/apm-storm.dtsi | 23 ++++++++++++++--------- drivers/pci/host/pci-xgene.c | 12 ++++++++++-- 2 files changed, 24 insertions(+), 11 deletions(-) -- 1.9.1