mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

arm64: amd-seattle: Fix PCI bus range due to SMMU limitation 

Since PCIe is using SMMUv1 which only supports 15-bit stream ID,
only 7-bit PCI bus id is used to specify stream ID. Therefore,
we only limit the PCI bus range to 0x7f.

Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Suravee Suthikulpanit 2014-11-30 21:46:40 -06:00 committed by Arnd Bergmann
parent 6bc474de36
commit 70bcc9ba15
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
View File

@ -147,7 +147,7 @@
#size-cells = <2>;
#interrupt-cells = <1>;
device_type = "pci";
bus-range = <0 0xff>;
bus-range = <0 0x7f>;
msi-parent = <&v2m0>;
reg = <0 0xf0000000 0 0x10000000>;