diff options
| author | Rob Herring <robh@kernel.org> | 2019-08-05 08:33:58 -0600 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2019-08-08 15:57:36 -0600 |
| commit | 013b6510131568ce4e01856d5360bfdfe9c3632f (patch) | |
| tree | 7c6b481c2a64a7dc2178c82622b0736bf0325084 /drivers/gpu/drm/panfrost/panfrost_device.h | |
| parent | 17acb9f35ed736c177f85b8ee711f278e7aff421 (diff) | |
| download | linux-013b6510131568ce4e01856d5360bfdfe9c3632f.tar.bz2 | |
drm/panfrost: Add madvise and shrinker support
Add support for madvise and a shrinker similar to other drivers. This
allows userspace to mark BOs which can be freed when there is memory
pressure.
Unlike other implementations, we don't depend on struct_mutex. The
driver maintains a list of BOs which can be freed when the shrinker
is called. Access to the list is serialized with the shrinker_lock.
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190805143358.21245-2-robh@kernel.org
Diffstat (limited to 'drivers/gpu/drm/panfrost/panfrost_device.h')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_device.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h index ea5948ff3647..038b32c62484 100644 --- a/drivers/gpu/drm/panfrost/panfrost_device.h +++ b/drivers/gpu/drm/panfrost/panfrost_device.h @@ -85,6 +85,10 @@ struct panfrost_device { struct mutex sched_lock; struct mutex reset_lock; + struct mutex shrinker_lock; + struct list_head shrinker_list; + struct shrinker shrinker; + struct { struct devfreq *devfreq; struct thermal_cooling_device *cooling; |