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| author | Christophe Leroy | 2016-08-05 13:28:05 +0200 |
|---|---|---|
| committer | Michael Ellerman | 2017-06-02 11:20:43 +0200 |
| commit | 362957c27ed0d9ff485d3266ed22d944cbfea6cc (patch) | |
| tree | b8122105e2234b9c6dc446fe4c8c6b8e35f371a4 /arch/powerpc/kernel | |
| parent | powerpc/mm: The 8xx doesn't call do_page_fault() for breakpoints (diff) | |
| download | kernel-qcow2-linux-362957c27ed0d9ff485d3266ed22d944cbfea6cc.tar.gz kernel-qcow2-linux-362957c27ed0d9ff485d3266ed22d944cbfea6cc.tar.xz kernel-qcow2-linux-362957c27ed0d9ff485d3266ed22d944cbfea6cc.zip | |
powerpc/40x: Clear MSR_DR in one insn instead of two
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/misc_32.S | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 84db14e435f5..3f7a9a2d2435 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -244,8 +244,7 @@ _GLOBAL(_nmask_and_or_msr) */ _GLOBAL(real_readb) mfmsr r7 - ori r0,r7,MSR_DR - xori r0,r0,MSR_DR + rlwinm r0,r7,0,~MSR_DR sync mtmsr r0 sync @@ -262,8 +261,7 @@ _GLOBAL(real_readb) */ _GLOBAL(real_writeb) mfmsr r7 - ori r0,r7,MSR_DR - xori r0,r0,MSR_DR + rlwinm r0,r7,0,~MSR_DR sync mtmsr r0 sync |