KMS cursor BO semantics

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Hi.

I have a question about the semantics of the DRM_IOCTL_MODE_CURSOR iotcl:

Some hardware (vmware's virtual in particular) may not be able to pick up the changes from a bo directly, since the cursor data is sent though the command stream. Hence we need a notification when the cursor image has changed.

Could we *require* that a cursor image change needs to be followed by an ioctl call with the flag
DRM_MODE_CURSOR_BO?

Thanks,
Thomas

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