On Don, 2002-09-26 at 10:24, Eric Anholt wrote: > On Thu, 2002-09-26 at 00:58, Eric Anholt wrote: > > CVSROOT: /cvsroot/dri > > Module name: xc > > Repository: xc/xc/lib/GL/mesa/src/drv/r200/ > > Changes by: anholt@usw-pr-cvs1. 02/09/26 00:58:14 > > > > Log message: > > R200 sync-to-vblank support (set LIBGL_THROTTLE_REFRESH=1) > > Okay, that concludes things for tonight. It's building and running > nicely on my end but I've got some more patches here, so yell if I broke > something. > > I've got the mga patches, but I'm missing one versioning check, I'm not > sure about what to do with the radeon stuff in drm_dma.h,
Mea culpa, moved back to radeon_irq.c. > and I'm tired. They sync to vsync rather than vblank, though vblank > should be possible with some work. It survived vtswitch on BSD > without any extra reg-saving code in the 2d, but I would like to make > sure the reg-saving is correct before committing that. Maybe the mga 2D driver simply doesn't mess with the IRQ control register(s). Something else I've been thinking about is that relying on the swi_emitted and swi_received counters being in sync is pretty fragile. It might be better to use a scratch register instead. Moreover, nicod on IRC reports that IRQs stop working for him in the middle of glxgears running. So I thought let's make really really sure they are enabled in the DRM instead of doing it in the 2D driver and praying. The result is http://penguinppc.org/~daenzer/DRI/radeon-swi-scratch.diff but unfortunately, it doesn't seem to really help with the second issue. Can anyone think of a way how the IRQs can get disabled in the chip with this? Could writing to GEN_INT_CNTL too often actually hurt? Works fine here though... At least, with this patch it keeps running at about the same speed as with usleeps when the IRQs go nuts. -- Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
