I need to prepare radeon driver for setting mode and detect disabling display. I have to disable PM and eventually enable it again after mode setting is done (only for single head configuration). My problem is I do not know when modesetting starts and as result can not disable PM reliably.
I tried to analyze: int drm_crtc_helper_set_config(struct drm_mode_set *set); It's quite simple if we consider mode-switching only. First prepare is called (for encoder and crtc), then after setting mode, commit is called (for encoder and crtc). That would just mean introducing my PM stuff in prepare and commit. But then I've to consider disabling display (xrandr X --off). This operation calls DRM_MODE_DPMS_OFF for crtc. So in result in radeon's case atombios_crtc_dpms is called from: 1) drm on disabling display 2) drm on lack of activity 3) radeon on crtc's prepare That makes my detection (almost?) impossible. Do you see any way of doing that? -- Rafał ------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
