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(parent: 67d4160) | patch
powerpc/64s/exception: shuffle windup code around
authorNicholas Piggin <npiggin@gmail.com>
Fri, 28 Jun 2019 05:33:26 +0000 (15:33 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Tue, 2 Jul 2019 11:39:48 +0000 (21:39 +1000)
commitb113c083414ed91c116483ebe74fb20c8b1ddcd3
treed37ec3d7c4c6dfe5e6b17f6ad2f80ce771993c12tree | snapshot
parent67d4160a61a0dd63eef10392e4154433a0a64ac3commit | diff
powerpc/64s/exception: shuffle windup code around

Restore all SPRs and CR up-front, these are longer latency
instructions. Move register restore around to maximise pairs of
adjacent loads (e.g., restore r0 next to r1).

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/exceptions-64s.S diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)