| Message ID | 20220617140207.444298-1-mranostay@ti.com |
|---|---|
| State | Accepted |
| Commit | 856216b70a41ff3f8c866b627546afa01567b389 |
| Headers | show |
| Series | [v2] arm64: dts: ti: k3-j721s2: fix overlapping GICD memory region | expand |
On 2022-06-17 15:02, Matt Ranostay wrote: > GICD region was overlapping with GICR causing the latter to not map > successfully, and in turn the gic-v3 driver would fail to initialize. > > This issue was hidden till commit 2b2cd74a06c3 ("irqchip/gic-v3: Claim iomem resources") > replaced of_iomap() calls with of_io_request_and_map() that internally > called request_mem_region(). > > Respective console output before this patchset: > > [ 0.000000] GICv3: /bus@100000/interrupt-controller@1800000: couldn't map region 0 > > Fixes: 2b2cd74a06c3 ("irqchip/gic-v3: Claim iomem resources") I think that should be b8545f9d3a54 ("arm64: dts: ti: Add initial support for J721S2 SoC") - the GIC change is the point at which Linux started *noticing* that the DT was wrong, but it's not what made the DT wrong. Thanks, Robin. > Cc: Marc Zyngier <maz@kernel.org> > Cc: Robin Murphy <robin.murphy@arm.com> > Cc: Nishanth Menon <nm@ti.com> > Signed-off-by: Matt Ranostay <mranostay@ti.com> > --- > arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > Changes from v1: > * Add missing Fixes: in commit messages > > diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi > index be7f39299894..19966f72c5b3 100644 > --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi > @@ -33,7 +33,7 @@ gic500: interrupt-controller@1800000 { > ranges; > #interrupt-cells = <3>; > interrupt-controller; > - reg = <0x00 0x01800000 0x00 0x200000>, /* GICD */ > + reg = <0x00 0x01800000 0x00 0x100000>, /* GICD */ > <0x00 0x01900000 0x00 0x100000>, /* GICR */ > <0x00 0x6f000000 0x00 0x2000>, /* GICC */ > <0x00 0x6f010000 0x00 0x1000>, /* GICH */
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi index be7f39299894..19966f72c5b3 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi @@ -33,7 +33,7 @@ gic500: interrupt-controller@1800000 { ranges; #interrupt-cells = <3>; interrupt-controller; - reg = <0x00 0x01800000 0x00 0x200000>, /* GICD */ + reg = <0x00 0x01800000 0x00 0x100000>, /* GICD */ <0x00 0x01900000 0x00 0x100000>, /* GICR */ <0x00 0x6f000000 0x00 0x2000>, /* GICC */ <0x00 0x6f010000 0x00 0x1000>, /* GICH */
GICD region was overlapping with GICR causing the latter to not map successfully, and in turn the gic-v3 driver would fail to initialize. This issue was hidden till commit 2b2cd74a06c3 ("irqchip/gic-v3: Claim iomem resources") replaced of_iomap() calls with of_io_request_and_map() that internally called request_mem_region(). Respective console output before this patchset: [ 0.000000] GICv3: /bus@100000/interrupt-controller@1800000: couldn't map region 0 Fixes: 2b2cd74a06c3 ("irqchip/gic-v3: Claim iomem resources") Cc: Marc Zyngier <maz@kernel.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Nishanth Menon <nm@ti.com> Signed-off-by: Matt Ranostay <mranostay@ti.com> --- arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Changes from v1: * Add missing Fixes: in commit messages