From: Kirill Tkhai <tkhai@yandex.ru>
To: sparclinux@vger.kernel.org
Subject: Re: [PATCH 0/3] Fully support 47-bit physical addresses.
Date: Fri, 27 Sep 2013 23:58:30 +0000 [thread overview]
Message-ID: <66621380326310@web19j.yandex.ru> (raw)
In-Reply-To: <20130926.165242.1048533011152185981.davem@redhat.com>
27.09.2013, 23:21, "Kirill Tkhai" <tkhai@yandex.ru>:
> 27.09.2013, 00:52, "David Miller" <davem@redhat.com>:
>
>> šOk, this patch set builds on top of the variable PAGE_OFFSET
>> špatches.
>>
>> šFirst we move to 8MB huge pages. šThe chips don't really have
>> š8MB page support, but we fabricate such a thing using 4MB
>> šPTEs.
>>
>> šNext we move to 64-bit pmd_t and pgd_t entries, which is the
>> šmost trivial of the changes here.
>>
>> šFinally, we encode huge PMDs using the plain PTE encoding of
>> šhuge pages. ššAll of the ugly huge PMD --> PTE translation
>> šcode disappears, and the TLB miss path is smaller and faster.
>>
>> šI just got this stuff fully working so caveat emptor :-)
>>
>> šSigned-off-by: David S. Miller <davem@davemloft.net>
>
> Hi, David,
>
> I've tryed the series on UltraSparc II with Spitfire MMU. Boot is ok,
> and some LTP tests are passed (short tests of mm).
This may confuse. Not "some are passed, some are not",
but "I executed a subset and it is ok" ;)
next prev parent reply other threads:[~2013-09-27 23:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-26 20:52 [PATCH 0/3] Fully support 47-bit physical addresses David Miller
2013-09-27 19:21 ` Kirill Tkhai
2013-09-27 23:58 ` Kirill Tkhai [this message]
2013-09-28 4:07 ` Gurudas Pai
2013-09-28 19:34 ` David Miller
2013-09-28 21:18 ` Gurudas Pai
2013-09-30 14:22 ` Bob Picco
2013-09-30 15:47 ` David Miller
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