On 07/01/2015 06:34 PM, Daniel Vetter wrote: > On Wed, Jul 01, 2015 at 05:01:52PM +0800, Mark Zhang wrote: >> On 07/01/2015 04:36 PM, Daniel Vetter wrote: >>> On Wed, Jul 01, 2015 at 04:21:55PM +0800, Mark Zhang wrote: >>>> This HACK adds a workqueue to refresh the display periodically. >>>> This is used just for testing. >>> >>> ->dirty is the drm hook you're looking for, it's meant to flush out any >>> frontbuffer rendering. Generic kms clients using the dumb buffers (e.g. >>> fedora boot splash) use this already. >>> >> >> Oh... I did a grep in drm source and are you talking about >> "drm_framebuffer_funcs->dirty"? Yeah, that should work for me.. but that >> requires userspace sending IOCTL to trigger, right? Honestly I'm lazy so >> I created this HACK so that I don't need userspace to test. > > Yeah userspace needs to send ioctl already after each drawing. Generic > userspace does that already since it's required by qxl, udl, soon i915 and > probably a few others too. fbdev emulation is more annyoing but there's > code to move around in these drivers (qxl seems best to me as a starting > point) too. >
Alright, this makes sense. I have no idea about qxl, what I have now is an ubuntu running on Tegra114. So I'm wondering what I suppose to do is installing qemu on the ubuntu? Mark > Imo without this you shouldn't merge one-shot, at least not enabled by > default. > -Daniel > -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
