[PATCH 2/3] powerpc: Load Monitor Register Support
Segher Boessenkool
segher at kernel.crashing.org
Tue Apr 12 15:40:41 AEST 2016
Hi,
On Mon, Apr 11, 2016 at 01:57:44PM -0500, Jack Miller wrote:
> __init_FSCR:
> mfspr r3,SPRN_FSCR
> + andi. r3,r3,(~FSCR_LM)@L
> ori r3,r3,FSCR_TAR|FSCR_DSCR|FSCR_EBB
> mtspr SPRN_FSCR,r3
> blr
This clears the top 48 bits as well. Shouldn't matter currently; but
more robust (and easier to read, if you know the idiom) is
ori r3,r3,FSCR_LM|FSCR_TAR|FSCR_DSCR|FSCR_EBB
xori r3,r3,FSCR_LM
Segher
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