diff options
| author | Thomas Hellstrom <thellstrom@vmware.com> | 2019-03-04 19:37:40 +0100 |
|---|---|---|
| committer | Thomas Hellstrom <thellstrom@vmware.com> | 2019-08-15 08:40:05 +0200 |
| commit | a0a63940b0c9ebc6d3156bbfe0c2cf7560b580cd (patch) | |
| tree | af18fb0b82892b0f63d8f5ebdb7b575a2b52ec79 /drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | |
| parent | 6ae8748bf70630c1598bfdeb7e874624a57fd898 (diff) | |
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_bo.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c index 0f04e58e9a5d..0d9a1d454cd4 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c @@ -509,6 +509,8 @@ int vmw_bo_init(struct vmw_private *dev_priv, acc_size = vmw_bo_acc_size(dev_priv, size, user); memset(vmw_bo, 0, sizeof(*vmw_bo)); + BUILD_BUG_ON(TTM_MAX_BO_PRIORITY <= 3); + vmw_bo->base.priority = 3; INIT_LIST_HEAD(&vmw_bo->res_list); |