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

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Message-ID: <f573abd1-669e-b376-b9da-db62f796887d@intel.com>
Date:   Wed, 26 Apr 2023 23:36:33 +0200
From:   Andrzej Hajda <andrzej.hajda@...el.com>
To:     "Cavitt, Jonathan" <jonathan.cavitt@...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



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.

Regards
Andrzej

>