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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-02-05 16:15:01 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-04-25 15:34:10 +0200 |
| commit | a8fd61688dfad6fdce95fa64cacd8a66595697b8 (patch) | |
| tree | 1d6f9b50f50ec4905e5dfa0f36f8c5485335fe49 /arch/s390/kernel | |
| parent | s390/crypto: use TRNG for seeding/reseeding (diff) | |
| download | linux-a8fd61688dfad6fdce95fa64cacd8a66595697b8.tar.xz linux-a8fd61688dfad6fdce95fa64cacd8a66595697b8.zip | |
s390: report new CPU capabilities
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>
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/processor.c | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/setup.c | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index 6fe2e1875058..5de13307b703 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -109,7 +109,8 @@ static void show_cpu_summary(struct seq_file *m, void *v) { static const char *hwcap_str[] = { "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp", - "edat", "etf3eh", "highgprs", "te", "vx", "vxd", "vxe", "gs" + "edat", "etf3eh", "highgprs", "te", "vx", "vxd", "vxe", "gs", + "vxe2", "vxp", "sort", "dflt" }; static const char * const int_hwcap_str[] = { "sie" diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 70197a68e6fa..12d136e567c4 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -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. |