aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm64/Kconfig
diff options
context:
space:
mode:
authorLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2017-06-14 17:37:12 +0100
committerWill Deacon <will.deacon@arm.com>2017-06-15 11:41:21 +0100
commitc6bb8f89fa6df7a8d62bad2f66063b4b7433ea59 (patch)
tree2e1abef68c9f64a889dd2461124c08ff91544dad /arch/arm64/Kconfig
parentarm64/dma-mapping: Remove extraneous null-pointer checks (diff)
downloadlinux-dev-c6bb8f89fa6df7a8d62bad2f66063b4b7433ea59.tar.xz
linux-dev-c6bb8f89fa6df7a8d62bad2f66063b4b7433ea59.zip
ARM64/irqchip: Update ACPI_IORT symbol selection logic
ACPI IORT is an ACPI addendum to describe the connection topology of devices with IOMMUs and interrupt controllers on ARM64 ACPI systems. Currently the ACPI IORT Kbuild symbol is selected whenever the Kbuild symbol ARM_GIC_V3_ITS is enabled, which in turn is selected by ARM64 Kbuild defaults. This makes the logic behind ACPI_IORT selection a bit twisted and not easy to follow. On ARM64 systems enabling ACPI the kbuild symbol ACPI_IORT should always be selected in that it is a kernel layer provided to the ARM64 arch code to parse and enable ACPI firmware bindings. Make the ACPI_IORT selection explicit in ARM64 Kbuild and remove the selection from ARM_GIC_V3_ITS entry, making the ACPI_IORT selection logic clearer to follow. Acked-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Hanjun Guo <hanjun.guo@linaro.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
-rw-r--r--arch/arm64/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index e7fcdc9a616d..79c0dec93030 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -3,6 +3,7 @@ config ARM64
select ACPI_CCA_REQUIRED if ACPI
select ACPI_GENERIC_GSI if ACPI
select ACPI_GTDT if ACPI
+ select ACPI_IORT if ACPI
select ACPI_REDUCED_HARDWARE_ONLY if ACPI
select ACPI_MCFG if ACPI
select ACPI_SPCR_TABLE if ACPI