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powerpc/sstep: Cover new VSX instructions under CONFIG_VSX
author
Ravi Bangoria
<ravi.bangoria@linux.ibm.com>
Sun, 11 Oct 2020 05:09:05 +0000
(10:39 +0530)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Wed, 30 Dec 2020 10:53:47 +0000
(11:53 +0100)
[ Upstream commit
1817de2f141c718f1a0ae59927ec003e9b144349
]
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:
50b80a12e4cc
("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>
arch/powerpc/lib/sstep.c
patch
|
blob
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history
diff --git
a/arch/powerpc/lib/sstep.c
b/arch/powerpc/lib/sstep.c
index
bf2cd3d
..
b18bce1
100644
(file)
--- a/
arch/powerpc/lib/sstep.c
+++ b/
arch/powerpc/lib/sstep.c
@@
-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: /*
p
stq */
op->type = MKOP(STORE, PREFIXED, 16);
break;
case 61: /* pstd */