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[S390] Add hwcap flag for the etf3 enhancement facility

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The Extended Translation Facility 3 (ETF3) added instructions which
allow conversions between different unicode character maps (UTF-8,
UTF-32 ...).  These instructions got enhanced with a later version of
the ETF3 allowing malformed multibyte chars to be recognized and
reported correctly.  The attached patch reserves bit 8 in the elf
hwcaps vector for the enhanced version of ETF3. The bit corresponds to
the stfle bits 22 and 30 and will only be set if both of the stfle
bits are set.

Signed-off-by: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Andreas Krebbel 2009-03-26 15:24:56 +01:00 • committed by Martin Schwidefsky
parent 7e9b580e5f
commit 488253ce49
2 changed files with 13 additions and 6 deletions
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6
arch/s390/kernel/processor.c
View file

@ -31,9 +31,9 @@ void __cpuinit print_cpu_info(void)
static int show_cpuinfo(struct seq_file *m, void *v)
{
static const char *hwcap_str[8] = {
static const char *hwcap_str[9] = {
"esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp",
"edat"
"edat", "etf3eh"
};
struct _lowcore *lc;
unsigned long n = (unsigned long) v - 1;
@ -48,7 +48,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
num_online_cpus(), loops_per_jiffy/(500000/HZ),
(loops_per_jiffy/(5000/HZ))%100);
seq_puts(m, "features\t: ");
for (i = 0; i < 8; i++)
for (i = 0; i < 9; i++)
if (hwcap_str[i] && (elf_hwcap & (1UL << i)))
seq_printf(m, "%s ", hwcap_str[i]);
seq_puts(m, "\n");