Searched hist:ea2d9a96b6abe57d72d39a7af24e0120f5df0a8c (Results 1 – 2 of 2) sorted by relevance
| /linux/arch/arm/include/asm/ |
| H A D | cpufeature.h | ea2d9a96b6abe57d72d39a7af24e0120f5df0a8c Sun Mar 19 17:23:31 CET 2017 Ard Biesheuvel <ard.biesheuvel@linaro.org> 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>
|
| /linux/arch/arm/ |
| H A D | Kconfig | diff ea2d9a96b6abe57d72d39a7af24e0120f5df0a8c Sun Mar 19 17:23:31 CET 2017 Ard Biesheuvel <ard.biesheuvel@linaro.org> 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>
|