redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

ARCv2: Don't pretend we may set L-bit in STATUS32 with kflag instruction 

As per PRM "kflag" instruction doesn't change state of
L-flag ("Zero-Overhead loop disabled") in STATUS32 register
so let's not act as if we can affect this bit.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
hifive-unleashed-5.1
Alexey Brodkin 2018-01-18 21:07:21 +03:00 committed by Vineet Gupta
parent 8bbfbc2df6
commit a3142792f7
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arc/include/asm/entry-arcv2.h
View File

@ -184,7 +184,7 @@
.macro FAKE_RET_FROM_EXCPN
lr r9, [status32]
bic r9, r9, (STATUS_U_MASK|STATUS_DE_MASK|STATUS_AE_MASK)
or r9, r9, (STATUS_L_MASK|STATUS_IE_MASK)
or r9, r9, STATUS_IE_MASK
kflag r9
.endm