From: Dmitry Osipenko <dmitry.osipenko@collabora.com>
To: Steven Price <steven.price@arm.com>,
David Airlie <airlied@linux.ie>,
Gerd Hoffmann <kraxel@redhat.com>,
Gurchetan Singh <gurchetansingh@chromium.org>,
Chia-I Wu <olvaffe@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
Daniel Almeida <daniel.almeida@collabora.com>,
Gert Wollny <gert.wollny@collabora.com>,
Tomeu Vizoso <tomeu.vizoso@collabora.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
Rob Herring <robh@kernel.org>,
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Gustavo Padovan <gustavo.padovan@collabora.com>,
Daniel Stone <daniel@fooishbar.org>,
virtualization@lists.linux-foundation.org,
Dmitry Osipenko <digetx@gmail.com>
Subject: Re: [PATCH v2 6/8] drm/shmem-helper: Add generic memory shrinker
Date: Thu, 17 Mar 2022 02:03:27 +0300 [thread overview]
Message-ID: <3fe18a5f-081c-c5aa-7366-0a44035e5082@collabora.com> (raw)
In-Reply-To: <d9b39fc0-f8dd-9569-833d-7fe12a0dc859@arm.com>
On 3/16/22 18:04, Steven Price wrote:
> On 14/03/2022 22:42, Dmitry Osipenko wrote:
>> Introduce a common DRM SHMEM shrinker. It allows to reduce code
>> duplication among DRM drivers, it also handles complicated lockings
>> for the drivers. This is initial version of the shrinker that covers
>> basic needs of GPU drivers.
>>
>> This patch is based on a couple ideas borrowed from Rob's Clark MSM
>> shrinker and Thomas' Zimmermann variant of SHMEM shrinker.
>>
>> GPU drivers that want to use generic DRM memory shrinker must support
>> generic GEM reservations.
>>
>> Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
>> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
> This looks fine to me, but one nitpick: you should update the comment in
> struct drm_gem_shmem_object:
>
>> /**
>> * @madv: State for madvise
>> *
>> * 0 is active/inuse.
>> * A negative value is the object is purged.
>> * Positive values are driver specific and not used by the helpers.
>> */
>> int madv;
> This is adding a helper which cares about the positive values.
Good catch, I'll update the comment in v3.
next prev parent reply other threads:[~2022-03-16 23:03 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-14 22:42 [PATCH v2 0/8] Add memory shrinker to VirtIO-GPU DRM driver Dmitry Osipenko
2022-03-14 22:42 ` [PATCH v2 1/8] drm/virtio: Correct drm_gem_shmem_get_sg_table() error handling Dmitry Osipenko
2022-03-15 13:05 ` Dmitry Osipenko
2022-03-14 22:42 ` [PATCH v2 2/8] drm/virtio: Check whether transferred 2D BO is shmem Dmitry Osipenko
2022-03-14 22:42 ` [PATCH v2 3/8] drm/virtio: Unlock GEM reservations in error code path Dmitry Osipenko
2022-03-14 22:42 ` [PATCH v2 4/8] drm/virtio: Improve DMA API usage for shmem BOs Dmitry Osipenko
2022-03-16 12:41 ` Robin Murphy
2022-03-16 13:52 ` Dmitry Osipenko
2022-03-17 1:09 ` Dmitry Osipenko
2022-03-14 22:42 ` [PATCH v2 5/8] drm/shmem-helper: Correct doc-comment of drm_gem_shmem_get_sg_table() Dmitry Osipenko
2022-03-14 22:42 ` [PATCH v2 6/8] drm/shmem-helper: Add generic memory shrinker Dmitry Osipenko
2022-03-16 15:04 ` Steven Price
2022-03-16 23:03 ` Dmitry Osipenko [this message]
2022-03-16 20:00 ` Rob Clark
2022-03-17 0:13 ` Dmitry Osipenko
2022-03-17 16:13 ` Rob Clark
2022-03-17 17:43 ` Dmitry Osipenko
2022-03-17 17:32 ` Daniel Vetter
2022-03-17 17:45 ` Dmitry Osipenko
2022-03-14 22:42 ` [PATCH v2 7/8] drm/virtio: Support memory shrinking Dmitry Osipenko
2022-03-15 12:43 ` Emil Velikov
2022-03-16 14:23 ` Dmitry Osipenko
2022-03-14 22:42 ` [PATCH v2 8/8] drm/panfrost: Switch to generic memory shrinker Dmitry Osipenko
2022-03-14 23:26 ` Alyssa Rosenzweig
2022-03-14 23:32 ` Dmitry Osipenko
2022-03-16 15:04 ` Steven Price
2022-03-16 23:04 ` Dmitry Osipenko
2022-03-18 14:41 ` Dmitry Osipenko
2022-03-18 14:47 ` Steven Price
2022-03-18 17:09 ` Dmitry Osipenko
2022-03-15 12:47 ` [PATCH v2 0/8] Add memory shrinker to VirtIO-GPU DRM driver Emil Velikov
2022-03-15 13:10 ` Dmitry Osipenko
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