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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>
This commit is contained in:
Jason J. Herne 2017-02-21 09:00:54 -05:00 committed by Christian Borntraeger
parent 97da3854c5
commit b112a2df28
1 changed files with 2 additions and 2 deletions
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4
arch/s390/include/asm/cpacf.h
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@ -149,8 +149,8 @@ static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask)
asm volatile( asm volatile(
" spm 0\n" /* pckmo doesn't change the cc */ " spm 0\n" /* pckmo doesn't change the cc */
/* Parameter registers are ignored, but may not be 0 */ /* Parameter regs are ignored, but must be nonzero and unique */
"0: .insn rrf,%[opc] << 16,2,2,2,0\n" "0: .insn rrf,%[opc] << 16,2,4,6,0\n"
" brc 1,0b\n" /* handle partial completion */ " brc 1,0b\n" /* handle partial completion */
: "=m" (*mask) : "=m" (*mask)
: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode)