https://bugs.freedesktop.org/show_bug.cgi?id=38800 --- Comment #34 from Mario Kleiner <mario.kleiner@xxxxxxxxxxxxxxxx> 2011-07-07 12:06:40 PDT --- On Jul 7, 2011, at 5:18 PM, Alex Deucher wrote: > 2011/7/7 Michel Dänzer <michel@xxxxxxxxxxx>: >> On Don, 2011-07-07 at 11:00 -0400, Alex Deucher wrote: >>> On Thu, Jul 7, 2011 at 10:45 AM, Mario Kleiner >>> <mario.kleiner@xxxxxxxxxxxxxxxx> wrote: >>>> Jerome, can you please forward this to the bugzilla discussion? My >>>> web-access to bugzilla is dead at the moment [Internet problems]: >>>> >>>> Need to run to a meeting for two hours or so, will be right back >>>> after the >>>> break ;-) >>>> >>>> What about this? It seems to address our issues: >>>> >>>> We could use the 'vline' irq's if Alex thinks they are reliable and >>>> supported on all asic's. If we program vline irq's to trigger >>>> immediately >>>> after end of vblank, e.g., scanline 1, we could do deferred >>>> pageflip >>>> programming there, and wait for flip completion/timestamping/etc. >>> >>> The only tricky thing with vlines is that the ddx uses them for tear >>> free rendering so a command stream may change the vline at any time. >>> However, we could adjust the CS checker to override the vline from >>> userspace with whatever the kernel happened to need. >> >> What about the vsync interrupts? Are those still available as of >> AVIVO? > > Here's a list of the available display int srcs on r6xx+: > VBLANK > VLINE > SNAPSHOT > FORCE_COUNT > FORCE_VSYNC > TRIG_A > TRIG_B > V_UPDATE > GRPH_PFLIP > > 7xx+ adds: > VSYNC_NOM > SET_V_TOTAL_MIN > > V_UPDATE looks like the most useful. It generates an interrupt when > the double buffered display regs switch (falling edge). > That sounds good. V_UPDATE irq would mark the end of the portion of vblank that we care about, so we could return a finished pageflip event earlier and don't need to mess with the vline and ddx. Btw. i've added Simon, and forwarded the last e-mails, we "lost" him. Webinterface works again for me, should we move back to bugzilla? -mario -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
