Revert "ARM64: Dynamically allocate cpumasks and increase supported CPUs to 512"

This reverts commit 0499a78369adacec1af29340b71ff8dd375b4697.

Enabling CPUMASK_OFFSTACK on arm64 triggers a warning in the
dev_pm_opp_set_config() function followed by a failure to set the
regulators and cpufreq-dt probing error. There is no apparent reason why
this happens, so revert this commit until further investigation.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/c1f2902d-cefc-4122-9b86-d1d32911f590@samsung.com

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 6daceefcedfc40171628fa1fee0871c4b1ae2d2e..24dfd87fab9332237cb9f2262676a3e2cdd54c27 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -120,7 +120,6 @@ config ARM64
        select CLONE_BACKWARDS
        select COMMON_CLK
        select CPU_PM if (SUSPEND || CPU_IDLE)
-       select CPUMASK_OFFSTACK if NR_CPUS > 256
        select CRC32
        select DCACHE_WORD_ACCESS
        select DYNAMIC_FTRACE if FUNCTION_TRACER
@@ -1431,7 +1430,7 @@ config SCHED_SMT
 config NR_CPUS
        int "Maximum number of CPUs (2-4096)"
        range 2 4096
-       default "512"
+       default "256"
 
 config HOTPLUG_CPU
        bool "Support for hot-pluggable CPUs"