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s390: report new CPU capabilities

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Add hardware capability bits and features tags to /proc/cpuinfo
for 4 new CPU features:
  "Vector-Enhancements Facility 2" (tag "vxe2", hwcap 2^15)
  "Vector-Packed-Decimal-Enhancement Facility" (tag "vxp", hwcap 2^16)
  "Enhanced-Sort Facility" (tag "sort", hwcap 2^17)
  "Deflate-Conversion Facility" (tag "dflt", hwcap 2^18)

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky 2019-02-05 16:15:01 +01:00
parent 769f020b6c
commit a8fd61688d
3 changed files with 14 additions and 1 deletions
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8
arch/s390/kernel/setup.c
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@ -919,7 +919,15 @@ static int __init setup_hwcaps(void)
elf_hwcap |= HWCAP_S390_VXRS_EXT;
if (test_facility(135))
elf_hwcap |= HWCAP_S390_VXRS_BCD;
if (test_facility(148))
elf_hwcap |= HWCAP_S390_VXRS_EXT2;
if (test_facility(152))
elf_hwcap |= HWCAP_S390_VXRS_PDE;
}
if (test_facility(150))
elf_hwcap |= HWCAP_S390_SORT;
if (test_facility(151))
elf_hwcap |= HWCAP_S390_DFLT;
/*
* Guarded storage support HWCAP_S390_GS is bit 12.