summaryrefslogtreecommitdiff
path: root/arch/arm/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/Kconfig')
-rw-r--r--arch/arm/Kconfig10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5da96f5df48f..e6e08d8a45fc 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1293,9 +1293,15 @@ config KASAN_SHADOW_OFFSET
config NR_CPUS
int "Maximum number of CPUs (2-32)"
- range 2 32
+ range 2 16 if DEBUG_KMAP_LOCAL
+ range 2 32 if !DEBUG_KMAP_LOCAL
depends on SMP
default "4"
+ help
+ The maximum number of CPUs that the kernel can support.
+ Up to 32 CPUs can be supported, or up to 16 if kmap_local()
+ debugging is enabled, which uses half of the per-CPU fixmap
+ slots as guard regions.
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs"
@@ -1321,7 +1327,7 @@ config ARM_PSCI
# selected platforms.
config ARCH_NR_GPIO
int
- default 2048 if ARCH_SOCFPGA
+ default 2048 if ARCH_INTEL_SOCFPGA
default 1024 if ARCH_BRCMSTB || ARCH_RENESAS || ARCH_TEGRA || \
ARCH_ZYNQ || ARCH_ASPEED
default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \