Messages in this thread | | | Date | Tue, 21 Jul 2015 11:14:46 -0500 | From | Bjorn Helgaas <> | Subject | Re: [PATCH v3 0/2] pci: xgene: Add multiple memory ranges support |
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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>
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