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| author |   Jason J. Herne <jjherne@linux.vnet.ibm.com> | 2017-02-21 09:00:54 -0500 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2017-04-26 14:15:39 +0200 |
| commit | b112a2df28e6b5238ae4e68821ddd706a476d28c (patch) | |
| tree | 9770df53c393a40311fa6fe28ec8076714c6d1ab /arch/s390 | |
| parent | Linux 4.11-rc3 (diff) | |
| download | linux-dev-b112a2df28e6b5238ae4e68821ddd706a476d28c.tar.xz linux-dev-b112a2df28e6b5238ae4e68821ddd706a476d28c.zip | |
s390/cpacf: query instructions use unique parameters for compatibility with KMA
The new KMA instruction requires unique parameters. Update __cpacf_query to
generate a compatible assembler instruction.
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Acked-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/cpacf.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h index e2dfbf280d12..175a5d773306 100644 --- a/arch/s390/include/asm/cpacf.h +++ b/arch/s390/include/asm/cpacf.h @@ -149,8 +149,8 @@ static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) asm volatile( " spm 0\n" /* pckmo doesn't change the cc */ - /* Parameter registers are ignored, but may not be 0 */ - "0: .insn rrf,%[opc] << 16,2,2,2,0\n" + /* Parameter regs are ignored, but must be nonzero and unique */ + "0: .insn rrf,%[opc] << 16,2,4,6,0\n" " brc 1,0b\n" /* handle partial completion */ : "=m" (*mask) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) |