mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-03 23:58:05 +00:00
Code Issues Releases Wiki Activity

s390: Make diag224 public

Browse source 
Diag204's cpu structures only contain the cpu type by means of an
index in the diag224 name table. Hence, to be able to use diag204 in
any meaningful way, we also need a usable diag224 interface.

Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Janosch Frank 2016-02-12 12:52:49 +01:00 committed by Christian Borntraeger
parent e435dc3139
commit 022bd2d11c
3 changed files with 16 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
arch/s390/hypfs/hypfs_diag.c
View file

@ -360,20 +360,6 @@ static void *diag204_store(void)
/* Diagnose 224 functions */
static int diag224(void *ptr)
{
int rc = -EOPNOTSUPP;
diag_stat_inc(DIAG_STAT_X224);
asm volatile(
" diag %1,%2,0x224\n"
"0: lhi %0,0x0\n"
"1:\n"
EX_TABLE(0b,1b)
: "+d" (rc) :"d" (0), "d" (ptr) : "memory");
return rc;
}
static int diag224_get_name_table(void)
{
/* memory must be below 2GB */

1
arch/s390/include/asm/diag.h
View file

@ -205,4 +205,5 @@ struct diag204_x_phys_cpu {
} __packed;
int diag204(unsigned long subcode, unsigned long size, void *addr);
int diag224(void *ptr);
#endif /* _ASM_S390_DIAG_H */

15
arch/s390/kernel/diag.c
View file

@ -218,3 +218,18 @@ int diag210(struct diag210 *addr)
return ccode;
}
EXPORT_SYMBOL(diag210);
int diag224(void *ptr)
{
int rc = -EOPNOTSUPP;
diag_stat_inc(DIAG_STAT_X224);
asm volatile(
" diag %1,%2,0x224\n"
"0: lhi %0,0x0\n"
"1:\n"
EX_TABLE(0b,1b)
: "+d" (rc) :"d" (0), "d" (ptr) : "memory");
return rc;
}
EXPORT_SYMBOL(diag224);