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| 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_gem.h | |
| parent | 17acb9f35ed736c177f85b8ee711f278e7aff421 (diff) | |
| download | linux-013b6510131568ce4e01856d5360bfdfe9c3632f.tar.gz | |
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_gem.h')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gem.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.h b/drivers/gpu/drm/panfrost/panfrost_gem.h index 6dbcaba020fc..5f51f881ea3f 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.h +++ b/drivers/gpu/drm/panfrost/panfrost_gem.h @@ -27,4 +27,7 @@ panfrost_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sgt); +void panfrost_gem_shrinker_init(struct drm_device *dev); +void panfrost_gem_shrinker_cleanup(struct drm_device *dev); + #endif /* __PANFROST_GEM_H__ */ |