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authorVineet Gupta <vgupta@kernel.org>2020-06-18 12:31:48 -0700
committerVineet Gupta <vgupta@kernel.org>2023-08-18 10:30:47 -0700
commit656f18ad8d5bc878cf05210e2fea8f13270ffcc5 (patch)
tree2bbfbad05f8027dadf8d7f5519e67b855c898762 /arch/arc
parentdfb12071dda4e28aea82d06bf9c01c403f6d0f30 (diff)
ARC: entry: replace 8 byte ADD.ne with 4 byte ADD2.ne
ARCv2 current ------------ 000007e0 <EV_Trap>: 7e0: 2482 3c01 sub sp,sp,112 7e4: 1c28 3006 std r0r1,[sp,40] 7e8: 1c30 3086 std r2r3,[sp,48] 7ec: 1c38 3106 std r4r5,[sp,56] 7f0: 1c40 3186 std r6r7,[sp,64] 7f4: 1c48 3206 std r8r9,[sp,72] 7f8: 1c50 3286 std r10r11,[sp,80] 7fc: 1c58 37c0 st blink,[sp,88] 800: 1c0c 36c0 st fp,[sp,12] 804: 1c18 3680 st gp,[sp,24] 808: 1c10 3780 st r30,[sp,16] 80c: 1c14 3300 st r12,[sp,20] 810: 226a 1340 lr r10,[aux_user_sp] 814: 22ca 1702 mov.ne r10,sp 818: 22c0 1f82 0000 0070 add.ne r10,r10,0x70 ^^^^^^^^^ With fix -------- 000007b4 <EV_Trap>: 7b4: 2482 3c01 sub sp,sp,112 7b8: 1c28 3006 std r0r1,[sp,40] 7bc: 1c30 3086 std r2r3,[sp,48] 7c0: 1c38 3106 std r4r5,[sp,56] 7c4: 1c40 3186 std r6r7,[sp,64] 7c8: 1c48 3206 std r8r9,[sp,72] 7cc: 1c50 3286 std r10r11,[sp,80] 7d0: 1c58 37c0 st blink,[sp,88] 7d4: 1c0c 36c0 st fp,[sp,12] 7d8: 1c18 3680 st gp,[sp,24] 7dc: 1c10 3780 st r30,[sp,16] 7e0: 1c14 3300 st r12,[sp,20] 7e4: 226a 1340 lr r10,[aux_user_sp] 7e8: 22ca 1702 mov.ne r10,sp 7ec: 22d5 1722 add2.ne r10,r10,0x1c Signed-off-by: Vineet Gupta <vgupta@kernel.org>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/include/asm/entry-arcv2.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h
index f7c9b3915d10..a030eae93d35 100644
--- a/arch/arc/include/asm/entry-arcv2.h
+++ b/arch/arc/include/asm/entry-arcv2.h
@@ -167,7 +167,7 @@
; ISA requires ADD.nz to have same dest and src reg operands
mov.nz r10, sp
- add.nz r10, r10, SZ_PT_REGS ; K mode SP
+ add2.nz r10, r10, SZ_PT_REGS/4 ; K mode SP
st r10, [sp, PT_sp] ; SP (pt_regs->sp)