From: Varun Sethi <Varun.Sethi@freescale.com>
To: <agraf@suse.de>, <galak@kernel.crashing.org>,
<benh@kernel.crashing.org>, <linuxppc-dev@lists.ozlabs.org>,
<kvm-ppc@vger.kernel.org>
Cc: Varun Sethi <Varun.Sethi@freescale.com>
Subject: [PATCH 0/4] powerpc/booke: Modifications to fsl booke cpu setup code
Date: Mon, 9 Jul 2012 18:22:37 +0530 [thread overview]
Message-ID: <1341838357-16887-1-git-send-email-Varun.Sethi@freescale.com> (raw)
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.
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.
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(-)
--
1.7.4.1
next reply other threads:[~2012-07-09 12:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-09 12:52 Varun Sethi [this message]
2012-07-27 12:57 ` [PATCH 0/4] powerpc/booke: Modifications to fsl booke cpu setup code Sethi Varun-B16395
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