[PATCH v3 0/2] pci: xgene: Add multiple memory ranges support

Bjorn Helgaas
2015-07-21T16:14:46Z

On Thu, Jul 09, 2015 at 02:20:10PM -0700, Duc Dang wrote:
> 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 have huge BAR.
>
> v3 changes:
> 1. Explicitly mention in change log that: Each PCIe node in dts
> will have 1 32-bit non-prefetchable memory window and 1 64-bit
> prefetchable memory window.
>
> 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(-)

Applied to pci/host-xgene for v4.3, with changelogs as follows, thanks!

commit 80bb3eda7475eb38b688d2e915c191ce6ad20df1
Author: Duc Dang <dhdang@apm.com>
Date: Thu Jul 9 14:20:11 2015 -0700

arm64: dts: Add APM X-Gene PCIe 64-bit prefetchable window

Add a large window (up to 64GB) for X-Gene PCIe nodes to support devices
that require huge BARs.

Each X-Gene PCIe node will now have two memory windows: a 32-bit
non-prefetchable window and a 64-bit prefetchable window.

[bhelgaas: changelog]
Signed-off-by: Duc Dang <dhdang@apm.com>
Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

commit 8ef54f27f6f425fa8deedc237d99b9daf41d68d2
Author: Duc Dang <dhdang@apm.com>
Date: Thu Jul 9 14:20:12 2015 -0700

PCI: xgene: Add support for a 64-bit prefetchable memory window

X-Gene PCIe controller has registers to support multiple memory ranges.

Add support for a 64-bit prefetchable memory window.

[bhelgaas: changelog]
Signed-off-by: Duc Dang <dhdang@apm.com>
Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>