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powerpc/8xx: Reduce DTLB miss handler by one insn
authorChristophe Leroy <christophe.leroy@c-s.fr>
Wed, 12 Jul 2017 10:08:57 +0000 (12:08 +0200)
committerMichael Ellerman <mpe@ellerman.id.au>
Tue, 15 Aug 2017 12:55:55 +0000 (22:55 +1000)
commit2ef973a9afc62077a13f7ac447d8a10fd79f3273
treebf236f2f92f2ff21d3bd7a08641c5d6fef8988f1tree | snapshot (tar.gz zip)
parent346bcc4d33798612b1861bfcebe3fc8b4199ad74commit | diff
powerpc/8xx: Reduce DTLB miss handler by one insn

This reduces the DTLB miss handler hot path (user address path)
by one instruction by preserving r10.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/head_8xx.S diff | blob | blame | history