[PATCH 3.16 091/254] MIPS: CPS: Fix r1 .set mt assembler warning

Ben Hutchings
2018-02-28T16:47:07Z

From: James Hogan <jhogan@kernel.org>

commit 17278a91e04f858155d54bee5528ba4fbcec6f87 upstream.

MIPS CPS has a build warning on kernels configured for MIPS32R1 or
MIPS64R1, due to the use of .set mt without a prior .set mips{32,64}r2:

arch/mips/kernel/cps-vec.S Assembler messages:
arch/mips/kernel/cps-vec.S:238: Warning: the `mt' extension requires MIPS32 revision 2 or greater

Add .set MIPS_ISA_LEVEL_RAW before .set mt to silence the warning.

Fixes: 245a7868d2f2 ("MIPS: smp-cps: rework core/VPE initialisation")
Signed-off-by: James Hogan <jhogan@kernel.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <james.hogan@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17699/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/mips/kernel/cps-vec.S | 2 ++
1 file changed, 2 insertions(+)

--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -229,6 +229,7 @@ LEAF(mips_cps_core_init)
has_mt t0, 3f

.set push
+ .set MIPS_ISA_LEVEL_RAW
.set mt

/* Only allow 1 TC per VPE to execute... */
@@ -347,6 +348,7 @@ LEAF(mips_cps_boot_vpes)
nop

.set push
+ .set MIPS_ISA_LEVEL_RAW
.set mt

1: /* Enter VPE configuration state */