linux-kernel - Re: [PATCH v20 00/10] Add generic DRM-shmem memory shrinker (part 1)

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Message-ID: <0e0686da-ae96-4a7a-81b2-b9ece1fa4837@suse.de>
Date: Tue, 25 Mar 2025 15:17:57 +0100
From: Thomas Zimmermann <tzimmermann@...e.de>
To: Dmitry Osipenko <dmitry.osipenko@...labora.com>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>,
 Christian König <christian.koenig@....com>,
 Gerd Hoffmann <kraxel@...hat.com>, Qiang Yu <yuq825@...il.com>,
 Steven Price <steven.price@....com>,
 Boris Brezillon <boris.brezillon@...labora.com>,
 Frank Binns <frank.binns@...tec.com>, Matt Coster <matt.coster@...tec.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
 kernel@...labora.com
Subject: Re: [PATCH v20 00/10] Add generic DRM-shmem memory shrinker (part 1)

I've looked through this before, so

Acked-by: Thomas Zimmermann <tzimmermann@...e.d>

for the series.

Am 22.03.25 um 22:25 schrieb Dmitry Osipenko:
> Hi,
>
> This a continuation of a year-old series that adds generic DRM-shmem
> shrinker [1]. The old series became too big with too many patches, more
> reasonable to split it up into multiple smaller patchsets. Here is
> the firtst part that makes preparatory DRM changes.
>
> [1] https://lore.kernel.org/dri-devel/20240105184624.508603-1-dmitry.osipenko@collabora.com/
>
> Changelog:
>
> v20:- Rebased on recent drm-misc. Added r-bs that were given to v19.
>
> Dmitry Osipenko (10):
>    drm/gem: Change locked/unlocked postfix of drm_gem_v/unmap() function
>      names
>    drm/gem: Add _locked postfix to functions that have unlocked
>      counterpart
>    drm/gem: Document locking rule of vmap and evict callbacks
>    drm/shmem-helper: Make all exported symbols GPL
>    drm/shmem-helper: Refactor locked/unlocked functions
>    drm/shmem-helper: Remove obsoleted is_iomem test
>    drm/shmem-helper: Add and use pages_pin_count
>    drm/shmem-helper: Use refcount_t for pages_use_count
>    drm/shmem-helper: Switch drm_gem_shmem_vmap/vunmap to use pin/unpin
>    drm/shmem-helper: Use refcount_t for vmap_use_count
>
>   drivers/gpu/drm/drm_client.c                  |  10 +-
>   drivers/gpu/drm/drm_gem.c                     |  26 ++--
>   drivers/gpu/drm/drm_gem_framebuffer_helper.c  |   6 +-
>   drivers/gpu/drm/drm_gem_shmem_helper.c        | 145 +++++++++---------
>   drivers/gpu/drm/drm_internal.h                |   4 +-
>   drivers/gpu/drm/drm_prime.c                   |   4 +-
>   drivers/gpu/drm/imagination/pvr_gem.c         |   4 +-
>   drivers/gpu/drm/lima/lima_gem.c               |   4 +-
>   drivers/gpu/drm/lima/lima_sched.c             |   4 +-
>   drivers/gpu/drm/panfrost/panfrost_drv.c       |   2 +-
>   drivers/gpu/drm/panfrost/panfrost_dump.c      |   4 +-
>   .../gpu/drm/panfrost/panfrost_gem_shrinker.c  |   2 +-
>   drivers/gpu/drm/panfrost/panfrost_mmu.c       |   2 +-
>   drivers/gpu/drm/panfrost/panfrost_perfcnt.c   |   6 +-
>   drivers/gpu/drm/panthor/panthor_gem.h         |   4 +-
>   drivers/gpu/drm/panthor/panthor_sched.c       |   4 +-
>   drivers/gpu/drm/tests/drm_gem_shmem_test.c    |  28 ++--
>   include/drm/drm_gem.h                         |  15 +-
>   include/drm/drm_gem_shmem_helper.h            |  45 ++++--
>   19 files changed, 167 insertions(+), 152 deletions(-)
>

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)