Extension('VK_KHR_display', 23, 'VK_USE_PLATFORM_DISPLAY_KHR'),
Extension('VK_EXT_direct_mode_display', 1, 'VK_USE_PLATFORM_DISPLAY_KHR'),
Extension('VK_EXT_acquire_xlib_display', 1, 'VK_USE_PLATFORM_XLIB_XRANDR_EXT'),
+ Extension('VK_EXT_calibrated_timestamps', 1, True),
Extension('VK_EXT_conditional_rendering', 1, True),
Extension('VK_EXT_conservative_rasterization', 1, 'device->rad_info.chip_class >= GFX9'),
Extension('VK_EXT_display_surface_counter', 1, 'VK_USE_PLATFORM_DISPLAY_KHR'),