diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2017-03-19 17:23:31 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2017-03-30 19:45:52 +0100 |
| commit | ea2d9a96b6abe57d72d39a7af24e0120f5df0a8c (patch) | |
| tree | 19908b045b74aa4dc50a6dba1f58061bc1feafbb /arch/arm/Kconfig | |
| parent | dd59f974bd5e04d000e38ceca1a19085d029794b (diff) | |
ARM: 8663/1: wire up HWCAP/HWCAP2 feature bits to the CPU modalias
Wire up the generic support for exposing CPU feature bits via the
modalias in /sys/device/system/cpu. This allows udev to automatically
load modules for things like crypto algorithms that are implemented
using optional instructions.
Since it is non-trivial to transparantly support both HWCAP and HWCAP2
capabilities in the cpu_feature() macro (which allows a module's hwcap
dependency and init routine to be declared using a single invocation of
module_cpu_feature_match()), support only HWCAP2 for now, which covers
the capabilities that are most likely to be useful in this manner.
Module dependencies on HWCAP will need to be declared explicitly via a
MODULE_DEVICE_TABLE(cpu, ...) declaration.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 0d4e71b42c77..64b43a84a1eb 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -27,6 +27,7 @@ config ARM select GENERIC_ALLOCATOR select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI) select GENERIC_CLOCKEVENTS_BROADCAST if SMP + select GENERIC_CPU_AUTOPROBE select GENERIC_EARLY_IOREMAP select GENERIC_IDLE_POLL_SETUP select GENERIC_IRQ_PROBE |