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powerpc/sstep: Cover new VSX instructions under CONFIG_VSX

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[ Upstream commit 1817de2f14 ]

Recently added Power10 prefixed VSX instruction are included
unconditionally in the kernel. If they are executed on a
machine without VSX support, it might create issues. Fix that.
Also fix one mnemonics spelling mistake in comment.

Fixes: 50b80a12e4 ("powerpc sstep: Add support for prefixed load/stores")
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201011050908.72173-3-ravi.bangoria@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ravi Bangoria 2020-10-11 10:39:05 +05:30 committed by Greg Kroah-Hartman
parent bf608cf329
commit 2ae4b562d7
1 changed files with 3 additions and 1 deletions
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4
arch/powerpc/lib/sstep.c
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@ -2757,6 +2757,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
case 41: /* plwa */
op->type = MKOP(LOAD, PREFIXED | SIGNEXT, 4);
break;
#ifdef CONFIG_VSX
case 42: /* plxsd */
op->reg = rd + 32;
op->type = MKOP(LOAD_VSX, PREFIXED, 8);
@ -2797,13 +2798,14 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
op->element_size = 16;
op->vsx_flags = VSX_CHECK_VEC;
break;
#endif /* CONFIG_VSX */
case 56: /* plq */
op->type = MKOP(LOAD, PREFIXED, 16);
break;
case 57: /* pld */
op->type = MKOP(LOAD, PREFIXED, 8);
break;
case 60: /* stq */
case 60: /* pstq */
op->type = MKOP(STORE, PREFIXED, 16);
break;
case 61: /* pstd */