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powerpc: Move part of giveup_fpu,altivec,spe into c
Move the MSR modification into new c functions. Removing it from the low level functions will allow us to avoid costly MSR writes by batching them up. Move the check_if_tm_restore_required() check into these new functions. Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Michael Ellerman <[email protected]>
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