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| author | Mete Durlu <meted@linux.ibm.com> | 2024-07-04 14:10:07 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2024-07-10 19:50:45 +0200 |
| commit | 97999f8c62a43cf2af5d725b045b82f9b47d83ea (patch) | |
| tree | 15a00cd45462cf1b0052db30caa042679616a383 /arch/s390 | |
| parent | s390/diag: Diag204 add busy return errno (diff) | |
| download | linux-97999f8c62a43cf2af5d725b045b82f9b47d83ea.tar.xz linux-97999f8c62a43cf2af5d725b045b82f9b47d83ea.zip | |
s390/diag: Add busy-indication-facility requirements
To verify if busy indication facility is installed or not sclp bits has
to be checked. Add a function that checks sclp to improve readability.
Add busy-indication-request bit mask for diag204 subcodes.
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Tobias Huschle <huschle@linux.ibm.com>
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/diag.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h index 20b94220113b..6527d7e8e010 100644 --- a/arch/s390/include/asm/diag.h +++ b/arch/s390/include/asm/diag.h @@ -12,6 +12,7 @@ #include <linux/if_ether.h> #include <linux/percpu.h> #include <asm/asm-extable.h> +#include <asm/sclp.h> #include <asm/cio.h> enum diag_stat_enum { @@ -117,6 +118,7 @@ enum diag204_sc { }; #define DIAG204_SUBCODE_MASK 0xffff +#define DIAG204_BIF_BIT 0x80000000 /* The two available diag 204 data formats */ enum diag204_format { @@ -326,6 +328,11 @@ union diag318_info { }; }; +static inline bool diag204_has_bif(void) +{ + return sclp.has_diag204_bif; +} + int diag204(unsigned long subcode, unsigned long size, void *addr); int diag224(void *ptr); int diag26c(void *req, void *resp, enum diag26c_sc subcode); |