drm/vmwgfx: Detect old user-space drivers and set up legacy emulation v2
GB aware mesa userspace drivers are detected by the fact that they are calling the vmw getparam ioctl querying DRM_VMW_PARAM_HW_CAPS to detect whether the device is Guest-backed object capable. For other drivers, lie about hardware version and send the 3D capabilities in a format they expect. v2: Use DRM_VMW_PARAM_MAX_MOB_MEMORY to detect gb awareness, Make sure we don't ovwerwrite bounce buffer or write past user-space buffer indicated size. Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com> Reviewed-by: NJakob Bornecrantz <jakob@vmware.com>
Showing
想要评论请 注册 或 登录