RE: [PATCH 0/4] powerpc/booke: Modifications to fsl booke cpu setup code
From: Sethi Varun-B16395 <hidden>
Date: 2012-07-27 12:57:55
Hi Kumar, Can you please review this patch set. Regards Varun
-----Original Message----- From: Sethi Varun-B16395 Sent: Monday, July 09, 2012 6:23 PM To: agraf@suse.de; galak@kernel.crashing.org; benh@kernel.crashing.org; linuxppc-dev@lists.ozlabs.org; kvm-ppc@vger.kernel.org Cc: Sethi Varun-B16395 Subject: [PATCH 0/4] powerpc/booke: Modifications to fsl booke cpu setup code =20 Modifications are aimed specifically at the e500mc/e5500 cpu setup code. Following modifications are introduced by this patchset: 1. Move the E.HV check to the cpu setup code. Based on this check we manipulte the CPU_FTR_EMB_HV flag (added as a part of e500mc KVM support) in the cpu_spec structure. We determine the presence of this feature based on the MMUCFG[LPIDSIZE] check and decide if we can setup the E.HV mode ivors. 2. Merge the 32 bit cpu setup code for e500mc/e5500 and define the "cpu_restore" routine (for e5500/e6500) only for the 64 bit case. The cpu_restore routine is used in the 64 bit case for setting up the secondary cores. 3. For the 64 bit case separate out e5500 cpu_setup and cpu_restore functions. The cpu_setup function (for the primary core) is passed the cpu_spec pointer, which is not there in case of the cpu_restore function. Also, in our case we will have to manipulate the CPU_FTR_EMB_HV flag on the the primary core. 4. Added CPU_FTR_EMB_HV check for e5500. =20 Varun Sethi (4): Separate out E.HV check and ivor setup code. Merge the PPC 32 e5500 setup code with e500mc setup and don't define a restore routine for PPC 32. Separate out restore_e5500/setup_e5500 routines and check for E.HV mode before setting ivor setting code. Add CPU_FTR_EMB_HV check for e5500. =20 arch/powerpc/kernel/cpu_setup_fsl_booke.S | 74 +++++++++++++++++++++++++---- arch/powerpc/kernel/cputable.c | 4 ++ arch/powerpc/kernel/exceptions-64e.S | 18 +------ arch/powerpc/kernel/head_fsl_booke.S | 18 ++----- 4 files changed, 75 insertions(+), 39 deletions(-) =20 -- 1.7.4.1