linux-kernel - RE: [PATCH v7 0/2] drm/i915: Hugepage manager and test for MTL

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Message-ID: <CH0PR11MB5444347394474788750B2FD5E5659@CH0PR11MB5444.namprd11.prod.outlook.com>
Date:   Wed, 26 Apr 2023 21:39:39 +0000
From:   "Cavitt, Jonathan" <jonathan.cavitt@...el.com>
To:     "Hajda, Andrzej" <andrzej.hajda@...el.com>,
        "intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Auld, Matthew" <matthew.auld@...el.com>
Subject: RE: [PATCH v7 0/2] drm/i915: Hugepage manager and test for MTL

-----Original Message-----
From: Hajda, Andrzej <andrzej.hajda@...el.com> 
Sent: Wednesday, April 26, 2023 2:37 PM
To: Cavitt, Jonathan <jonathan.cavitt@...el.com>; intel-gfx@...ts.freedesktop.org; linux-kernel@...r.kernel.org; Auld, Matthew <matthew.auld@...el.com>
Subject: Re: [PATCH v7 0/2] drm/i915: Hugepage manager and test for MTL
>
>On 26.04.2023 17:31, Cavitt, Jonathan wrote:
>> -----Original Message-----
>> From: Hajda, Andrzej <andrzej.hajda@...el.com>
>> Sent: Wednesday, April 26, 2023 8:14 AM
>> To: intel-gfx@...ts.freedesktop.org; linux-kernel@...r.kernel.org; Cavitt, Jonathan <jonathan.cavitt@...el.com>; Hajda, Andrzej <andrzej.hajda@...el.com>; Auld, Matthew <matthew.auld@...el.com>
>> Subject: [PATCH v7 0/2] drm/i915: Hugepage manager and test for MTL
>>> This patchset patches sent by Jonathan and Andi, with
>>> addressed CI failures:
>>> 1. Fixed checking alignment of 64K pages on both Pre-Gen12 and Gen12.
>>> 2. Fixed start alignment of 2M pages.
>>>
>>> Regards
>>> Andrzej
>>>
>>> Jonathan Cavitt (2):
>>>   drm/i915: Migrate platform-dependent mock hugepage selftests to live
>>>   drm/i915: Use correct huge page manager for MTL
>>>
>>> .../gpu/drm/i915/gem/selftests/huge_pages.c   | 88 +++++++++++++++----
>>> drivers/gpu/drm/i915/gt/gen8_ppgtt.c          |  3 +-
>>> 2 files changed, 71 insertions(+), 20 deletions(-)
>>>
>>> Cc: intel-gfx@...ts.freedesktop.org
>>> Cc: linux-kernel@...r.kernel.org
>>> Cc: Jonathan Cavitt <jonathan.cavitt@...el.com>
>>> Cc: Andrzej Hajda <andrzej.hajda@...el.com>
>>> Cc: Matthew Auld <matthew.auld@...el.com>
>>> -- 
>>> 2.39.2
>>>
>>> ---
>>> Jonathan Cavitt (2):
>>>       drm/i915: Migrate platform-dependent mock hugepage selftests to live
>>>       drm/i915: Use correct huge page manager for MTL
>>>
>>> drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 105 ++++++++++++++++++------
>>> drivers/gpu/drm/i915/gt/gen8_ppgtt.c            |   3 +-
>>> 2 files changed, 82 insertions(+), 26 deletions(-)
>>> ---
>>> base-commit: 4d0066a1c0763d50b6fb017e27d12b081ce21b57
>>> change-id: 20230425-hugepage-migrate-1869aaf31a6d
>>>
>>> Best regards,
>>> -- 
>>> Andrzej Hajda <andrzej.hajda@...el.com>
>>
>> Just reviewed the changes proper.  It's been a while, so I don't remember everything
>> about the prior version, but I think I recognized what was changed:
>>
>> - I wasn't aware a 21 bit alignment was required for 2M page sizes.  I'm glad you caught that.
>> - The extra debugging/error information will be helpful in the case of a failure.
>> - Grabbing the per-context VM instead of the ppgtt vm sounds good to me.
>>
>> Everything here looks amenable.
>> Acked-by: Jonathan Cavitt <jonathan.cavitt@...el.com>
>> Though, given I'm also one of the signed-off-bys, I don't know if me acking it is exactly above-board.
>> -Jonathan Cavitt
>
>Thanks for looking at it. CI spotted another issue: 2M pages are 
>preferred over old-64K, if former are available.
>Fixed version sent.
>Regarding tags, I've kept your authorship, s-o-b, and added my 
>Co-developed, if it is OK to you I will keep it this way.
>If you prefer otherwise let me know.

That is entirely acceptable!  Thank you for your time.
-Jonathan Cavitt

>
>Regards
>Andrzej
>
>>
>
>