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Date: Wed, 4 Feb 2015 15:49:08 +0100 (CET) From: Christophe Leroy <christophe.leroy@....fr> 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 v4 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 Patchset: 01 - powerpc/8xx: macro for handling CPU15 errata 02 - powerpc/8xx: Handle CR out of exception PROLOG/EPILOG 03 - powerpc/8xx: dont save CR in SCRATCH registers 04 - powerpc/8xx: Use SPRG2 instead of DAR for saving r3 05 - powerpc/8xx: Add support for TASK_SIZE greater than 0x80000000 All changes have been successfully tested on MPC885 Signed-off-by: Christophe Leroy <christophe.leroy@....fr> Tested-by: Christophe Leroy <christophe.leroy@....fr> --- v3: 01-06 no change ; 07-11 changed v4: 01-06 removed (already in scootwood.git next) ; 07-11 renamed 01-05 and respined against scootwood.git next arch/powerpc/kernel/head_8xx.S | 79 +++++++++++++++++++++++++++--------------- 1 file changed, 51 insertions(+), 28 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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