Am Donnerstag, den 20.12.2012, 10:36 +0800 schrieb Mark Zhang: > OK, you add a mutex in a tegra_dc structure. But I think there is no > parallel scenario while we operate on a dc. AFAIK, the functions which > you add mutex protection are called by drm sequentially(except for > function "tegra_crtc_load_lut" I'm not very clear about that). > > So could you give us an example? > You are right, I looked this up again. I thought cursor actions are async to other modeset actions, but in fact they are also protected by the mode_config.mutex. So really no need to have another mutex in our dc code. Sorry for the noise. Lucas -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html