From: Jason J. Herne Date: Tue, 21 Feb 2017 14:00:54 +0000 (-0500) Subject: s390/cpacf: query instructions use unique parameters for compatibility with KMA X-Git-Tag: v4.12-rc1~139^2^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b112a2df28e6b5238ae4e68821ddd706a476d28c;p=platform%2Fkernel%2Flinux-exynos.git 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 Acked-by: Harald Freudenberger Signed-off-by: Christian Borntraeger --- diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h index e2dfbf2..175a5d7 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)