From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Ellerman <patch-notifications@ellerman.id.au>
Subject: Re: [kernel, v11, 02/10] powerpc/powernv/iommu: Add real mode version of iommu_table_ops::exchange()
Date: Mon,  1 May 2017 12:58:51 +1000 (AEST)
Message-ID: <3wGTdl4qlgz9sNC@ozlabs.org>
References: <20170322042156.11756-3-aik@ozlabs.ru>
Cc: kvm@vger.kernel.org, Alexey Kardashevskiy <aik@ozlabs.ru>,
        kvm-ppc@vger.kernel.org,
        Alex Williamson <alex.williamson@redhat.com>,
        Paul Mackerras <paulus@samba.org>,
        David Gibson <david@gibson.dropbear.id.au>
To: Alexey Kardashevskiy <aik@ozlabs.ru>, linuxppc-dev@lists.ozlabs.org
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On Wed, 2017-03-22 at 04:21:48 UTC, Alexey Kardashevskiy wrote:
> In real mode, TCE tables are invalidated using special
> cache-inhibited store instructions which are not available in
> virtual mode
> 
> This defines and implements exchange_rm() callback. This does not
> define set_rm/clear_rm/flush_rm callbacks as there is no user for those -
> exchange/exchange_rm are only to be used by KVM for VFIO.
> 
> The exchange_rm callback is defined for IODA1/IODA2 powernv platforms.
> 
> This replaces list_for_each_entry_rcu with its lockless version as
> from now on pnv_pci_ioda2_tce_invalidate() can be called in
> the real mode too.
> 
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/a540aa56ba3d29084f28710c8b93cc

cheers