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

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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 <[email protected]>
Signed-off-by: Vineet Gupta <[email protected]>
This commit is contained in:
Alexey Brodkin 2018-01-18 21:07:21 +03:00 • committed by Vineet Gupta
commit a3142792f7
1 changed files with 1 additions and 1 deletions
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2
arch/arc/include/asm/entry-arcv2.h
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@ -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