diff options
| author |   Sandipan Das <sandipan@linux.ibm.com> | 2019-02-22 12:23:32 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-02-26 00:05:20 +1100 |
| commit | 6324320de609766f79b85b681a53061885bc679d (patch) | |
| tree | ab6108ff562de78a7227ede07ae4e2f2c11cc206 | |
| parent | powerpc sstep: Add support for modsw, moduw instructions (diff) | |
| download | linux-dev-6324320de609766f79b85b681a53061885bc679d.tar.xz linux-dev-6324320de609766f79b85b681a53061885bc679d.zip | |
powerpc sstep: Add support for modsd, modud instructions
This adds emulation support for the following integer instructions:
* Modulo Signed Doubleword (modsd)
* Modulo Unsigned Doubleword (modud)
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/lib/sstep.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index 9c65fb1da298..3d33fb509ef4 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -1704,7 +1704,13 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, (int) regs->gpr[rb]; goto arith_done; - +#ifdef __powerpc64__ + case 265: /* modud */ + if (!cpu_has_feature(CPU_FTR_ARCH_300)) + return -1; + op->val = regs->gpr[ra] % regs->gpr[rb]; + goto compute_done; +#endif case 266: /* add */ op->val = regs->gpr[ra] + regs->gpr[rb]; goto arith_done; @@ -1756,7 +1762,14 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, } return -1; - +#ifdef __powerpc64__ + case 777: /* modsd */ + if (!cpu_has_feature(CPU_FTR_ARCH_300)) + return -1; + op->val = (long int) regs->gpr[ra] % + (long int) regs->gpr[rb]; + goto compute_done; +#endif case 779: /* modsw */ if (!cpu_has_feature(CPU_FTR_ARCH_300)) return -1; |