drm/vmwgfx: Assign eviction priorities to resources

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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>

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This commit is contained in:

Thomas Hellstrom 2019-03-04 19:37:40 +01:00

parent 6ae8748bf7

commit a0a63940b0

8 changed files with 140 additions and 20 deletions

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2

drivers/gpu/drm/vmwgfx/vmwgfx_bo.c

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4

drivers/gpu/drm/vmwgfx/vmwgfx_context.c

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13

drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c

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drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

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drivers/gpu/drm/vmwgfx/vmwgfx_resource.c

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drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h

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drivers/gpu/drm/vmwgfx/vmwgfx_shader.c

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drivers/gpu/drm/vmwgfx/vmwgfx_surface.c

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