Commit e2f39c9f authored by Heiko Carstens's avatar Heiko Carstens Committed by Alexander Gordeev
Browse files

s390/cpufeature: allow for facility bits 



Allow for facility bits to be used in cpu features.

Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Reviewed-by: default avatarClaudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: default avatarSteffen Eiden <seiden@linux.ibm.com>
Link: https://lore.kernel.org/r/20220713125644.16121-3-seiden@linux.ibm.com


Signed-off-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
parent 0a5f9b38

arch/s390/kernel/cpufeature.c

+3 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 


enum {

	TYPE_HWCAP,

	TYPE_FACILITY,

};



struct s390_cpu_feature {
@@ -34,6 +35,8 @@ int cpu_have_feature(unsigned int num) 
	switch (feature->type) {

	case TYPE_HWCAP:

		return !!(elf_hwcap & BIT(feature->num));

	case TYPE_FACILITY:

		return test_facility(feature->num);

	default:

		WARN_ON_ONCE(1);

		return 0;