linux-kernel - [PATCH v5 0/5] powerpc8xx: Further optimisation of TLB handling

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Message-Id: <cover.1429287688.git.christophe.leroy@c-s.fr>
Date:	Fri, 17 Apr 2015 18:32:50 +0200 (CEST)
From:	christophe.leroy@....fr (root)
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>, scottwood@...escale.com
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	Joakim Tjernlund <joakim.tjernlund@...nsmode.se>
Subject: [PATCH v5 0/5] powerpc8xx: Further optimisation of TLB handling

This patchset provides a further optimisation of TLB handling in the 8xx.
Changes are:
- Not saving registers like CR when not needed
- Adding support to any TASK_SIZE

Only the last patch of the set is changed compared to v4

Christophe Leroy (5):
  powerpc/8xx: macro for handling CPU15 errata
  powerpc/8xx: Handle CR out of exception PROLOG/EPILOG
  powerpc/8xx: dont save CR in SCRATCH registers
  powerpc/8xx: Use SPRG2 instead of DAR for saving r3
  powerpc/8xx: Add support for TASK_SIZE greater than 0x80000000

 arch/powerpc/kernel/head_8xx.S | 79 +++++++++++++++++++++++++++---------------
 1 file changed, 51 insertions(+), 28 deletions(-)

-- 
2.1.0

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