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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-08-20 17:28:44 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-10-14 14:32:06 +0200 |
| commit | 1ec2772e0c3ca3159035c03165355e355efc326b (patch) | |
| tree | 469be3ba9032d367e4a796d6a31b25ccaab0d06a /arch/s390/kernel/early.c | |
| parent | s390/bitops: implement cache friendly test_and_set_bit_lock (diff) | |
| download | linux-dev-1ec2772e0c3ca3159035c03165355e355efc326b.tar.xz linux-dev-1ec2772e0c3ca3159035c03165355e355efc326b.zip | |
s390/diag: add a statistic for diagnose calls
Introduce /sys/debug/kernel/diag_stat with a statistic how many diagnose
calls have been done by each CPU in the system.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/early.c')
| -rw-r--r-- | arch/s390/kernel/early.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 549a73a4b543..311a2d6d48e4 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -17,6 +17,7 @@ #include <linux/pfn.h> #include <linux/uaccess.h> #include <linux/kernel.h> +#include <asm/diag.h> #include <asm/ebcdic.h> #include <asm/ipl.h> #include <asm/lowcore.h> @@ -286,6 +287,7 @@ static __init void detect_diag9c(void) int rc; cpu_address = stap(); + diag_stat_inc(DIAG_STAT_X09C); asm volatile( " diag %2,0,0x9c\n" "0: la %0,0\n" @@ -300,6 +302,7 @@ static __init void detect_diag44(void) { int rc; + diag_stat_inc(DIAG_STAT_X044); asm volatile( " diag 0,0,0x44\n" "0: la %0,0\n" |