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drm/vmwgfx: Add surface dirty-tracking callbacks

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Add the callbacks necessary to implement emulated coherent memory for
surfaces. Add a flag to the gb_surface_create ioctl to indicate that
surface memory should be coherent.
Also bump the drm minor version to signal the availability of coherent
surfaces.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com>
This commit is contained in:
Thomas Hellstrom
2019-03-19 13:27:50 +01:00
parent d58e3b087b
commit 4ba3976712
4 changed files with 629 additions and 7 deletions
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4
include/uapi/drm/vmwgfx_drm.h
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@@ -891,11 +891,13 @@ struct drm_vmw_shader_arg {
* surface.
* @drm_vmw_surface_flag_create_buffer: Create a backup buffer if none is
* given.
* @drm_vmw_surface_flag_coherent: Back surface with coherent memory.
*/
enum drm_vmw_surface_flags {
drm_vmw_surface_flag_shareable = (1 << 0),
drm_vmw_surface_flag_scanout = (1 << 1),
drm_vmw_surface_flag_create_buffer = (1 << 2)
drm_vmw_surface_flag_create_buffer = (1 << 2),
drm_vmw_surface_flag_coherent = (1 << 3),
};
/**