From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
paulus@samba.org, mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH for-4.8 02/10] powerpc/mm: Convert early cpu/mmu feature check to use the new helpers
Date: Wed, 13 Jul 2016 19:36:06 +0530 [thread overview]
Message-ID: <87k2gpy6nl.fsf@skywalker.in.ibm.com> (raw)
In-Reply-To: <1468411747.20552.81.camel@kernel.crashing.org>
Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:
> On Wed, 2016-07-13 at 15:08 +0530, Aneesh Kumar K.V wrote:
>> This switch most of the early feature check to use the non static key
>> variant of the function. In later patches we will be switching
>> cpu_has_feature and mmu_has_feature to use static keys and we can use
>> them only after static key/jump label is initialized. Any check for
>> feature before jump label init should be done using this new helper.
>
> I'm not sure about that. This is converting way way way way more
> functions than is needed. Especially if Michael applies my series
> there will be very little code run before the patching, really only the
> MMU initialization....
Michael is also running into boot issues with the early init rewrite
patch series on G5. That is why I didn't rebase my patches on top of
that changes.
-aneesh
next prev parent reply other threads:[~2016-07-13 14:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-13 9:38 [PATCH for-4.8_set3 00/10] Use jump label for cpu/mmu_has_feature Aneesh Kumar K.V
2016-07-13 9:38 ` [PATCH for-4.8 01/10] powerpc/mm: Add __cpu/__mmu_has_feature Aneesh Kumar K.V
2016-07-13 9:38 ` [PATCH for-4.8 02/10] powerpc/mm: Convert early cpu/mmu feature check to use the new helpers Aneesh Kumar K.V
2016-07-13 12:09 ` Benjamin Herrenschmidt
2016-07-13 13:58 ` Aneesh Kumar K.V
2016-07-13 14:06 ` Aneesh Kumar K.V [this message]
2016-07-13 14:45 ` Benjamin Herrenschmidt
2016-07-13 9:38 ` [PATCH for-4.8 03/10] powerpc/mm/radix: Add radix_set_pte to use in early init Aneesh Kumar K.V
2016-07-13 9:38 ` [PATCH for-4.8 04/10] jump_label: make it possible for the archs to invoke jump_label_init() much earlier Aneesh Kumar K.V
2016-07-13 9:38 ` [PATCH for-4.8 05/10] powerpc: Call jump_label_init early Aneesh Kumar K.V
2016-07-13 9:38 ` [PATCH for-4.8 06/10] powerpc: kill mfvtb() Aneesh Kumar K.V
2016-07-13 9:38 ` [PATCH for-4.8 07/10] powerpc: move the cpu_has_feature to a separate file Aneesh Kumar K.V
2016-07-13 9:38 ` [PATCH for-4.8 08/10] powerpc: use the jump label for cpu_has_feature Aneesh Kumar K.V
2016-07-13 9:38 ` [PATCH for-4.8 09/10] powerpc: use jump label for mmu_has_feature Aneesh Kumar K.V
2016-07-13 9:38 ` [PATCH for-4.8 10/10] powerpc/mm: Catch the usage of cpu/mmu_has_feature before jump label init Aneesh Kumar K.V
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