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author | Thomas Hellstrom <thellstrom@vmware.com> | 2019-03-04 21:37:40 +0300 |
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committer | Thomas Hellstrom <thellstrom@vmware.com> | 2019-08-15 09:40:05 +0300 |
commit | a0a63940b0c9ebc6d3156bbfe0c2cf7560b580cd (patch) | |
tree | af18fb0b82892b0f63d8f5ebdb7b575a2b52ec79 /drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h | |
parent | 6ae8748bf70630c1598bfdeb7e874624a57fd898 (diff) | |
download | linux-a0a63940b0c9ebc6d3156bbfe0c2cf7560b580cd.tar.xz |
drm/vmwgfx: Assign eviction priorities to resources
TTM provides a means to assign eviction priorities to buffer object. This
means that all buffer objects with a lower priority will be evicted first
on memory pressure.
Use this to make sure surfaces and in particular non-dirty surfaces are
evicted first. Evicting in particular shaders, cotables and contexts imply
a significant performance hit on vmwgfx, so make sure these resources are
evicted last.
Some buffer objects are sub-allocated in user-space which means we can have
many resources attached to a single buffer object or resource. In that case
the buffer object is given the highest priority of the attached resources.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h')
-rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h index 7e19eba0b0b8..984e588c62ca 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h @@ -78,6 +78,8 @@ struct vmw_res_func { const char *type_name; struct ttm_placement *backup_placement; bool may_evict; + u32 prio; + u32 dirty_prio; int (*create) (struct vmw_resource *res); int (*destroy) (struct vmw_resource *res); |