From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org,
David Gibson <david@gibson.dropbear.id.au>,
Paul Mackerras <paulus@samba.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH kernel] powerpc/powernv/ioda2: Fix calculation for memory allocated for TCE table
Date: Thu, 23 Jul 2015 19:45:44 +1000 [thread overview]
Message-ID: <55B0B7C8.8030804@ozlabs.ru> (raw)
In-Reply-To: <1437459841.30722.9.camel@ellerman.id.au>
On 07/21/2015 04:24 PM, Michael Ellerman wrote:
> On Mon, 2015-07-20 at 20:45 +1000, Alexey Kardashevskiy wrote:
>> The existing code stores the amount of memory allocated for a TCE table.
>> At the moment it uses @offset which is a virtual offset in the TCE table
>> which is only correct for a one level tables and it does not include
>> memory allocated for intermediate levels. When multilevel TCE table is
>> requested, WARN_ON in tce_iommu_create_table() prints a warning.
>>
>> This adds an additional counter to pnv_pci_ioda2_table_do_alloc_pages()
>> to count actually allocated memory.
>>
>> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
>> ---
>>
>> I was sure I sent it already but could not find it anywhere so reposting.
>> Sorry if it is a duplicate.
>
> Stable?
No, this is for DDW patchset I recently posted and which did not get to any
release yet.
--
Alexey
next prev parent reply other threads:[~2015-07-23 9:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-20 10:45 [PATCH kernel] powerpc/powernv/ioda2: Fix calculation for memory allocated for TCE table Alexey Kardashevskiy
2015-07-21 5:11 ` David Gibson
2015-07-21 6:24 ` Michael Ellerman
2015-07-23 9:45 ` Alexey Kardashevskiy [this message]
2015-07-31 4:13 ` [kernel] " Michael Ellerman
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