From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Frederic Barrat <fbarrat@linux.vnet.ibm.com>,
aneesh.kumar@linux.vnet.ibm.com, bsingharora@gmail.com,
linuxppc-dev@lists.ozlabs.org
Subject: Re: powerpc/mm: Add missing global TLBI if cxl is active
Date: Thu, 6 Apr 2017 23:23:31 +1000 (AEST) [thread overview]
Message-ID: <3vzNh35lLSz9s8N@ozlabs.org> (raw)
In-Reply-To: <20170329171942.14267-1-fbarrat@linux.vnet.ibm.com>
On Wed, 2017-03-29 at 17:19:42 UTC, Frederic Barrat wrote:
> Commit 4c6d9acce1f4 ("powerpc/mm: Add hooks for cxl") converted local
> TLBIs to global if the cxl driver is active. It is necessary because
> the CAPP snoops invalidations to forward them to the PSL on the cxl
> adapter.
> However one path was apparently forgotten. native_flush_hash_range()
> still sends local TLBIs, as found out the hard way recently.
>
> This patch fixes it by following the same logic as previously: if the
> cxl driver is active, the local TLBIs are 'upgraded' to global.
>
> Fixes: 4c6d9acce1f4 ("powerpc/mm: Add hooks for cxl")
> Cc: stable@vger.kernel.org
> Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/88b1bf7268f56887ca88eb09c6fb0f
cheers
prev parent reply other threads:[~2017-04-06 13:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-29 17:19 [PATCH] powerpc/mm: Add missing global TLBI if cxl is active Frederic Barrat
2017-04-04 9:23 ` Aneesh Kumar K.V
2017-04-06 13:23 ` Michael Ellerman [this message]
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