Hi John,
Thank you for testing :)) More below.
On Mon, 21 Feb 2005, John Clemens wrote:
So I've been lurking for a while following the r300 work and decided to give it a go on my fanless 9600se (RV350 AP).
How much memory do you have ? What kind of CPU and motherboard ?
- glxinfo states r300 DRI is enabled. (AGP4x, NO-TCL)
- glxgears gives me about 250fps with drm debug=1, ~625fps without debug
on.
- tuxracer runs ok at 640x480 fullscreen
- ice textures look psychadelicly blue
- at 1280x1024, (and somewhat at 800x600 windowed), i get these
errors:
[drm:radeon_cp_dispatch_swap] *ERROR* Engine timed out before swap buffer blit
Any pointers on what causes that? This is with Xorg cvs, Mesa cvs, r300 cvs, as of 4 hours ago. I'm guessing the X server or mesa isn't filling the buffer up fast enough at higher resolutions...but I'm new to devlopment so i don't know which buffer that would be..
The swap buffer blit is just a copy - for example a copy from back buffer to front buffer. Since the engine timed out before swap buffer blit it means that the commands before it were at fault. Which is puzzling as you point out that everything works in 640x480.
I wonder whether the lockup detection logic is at fault - we simply wait a fixed amount of time for the engine to become idle.
Perhaps it would be better to actually monitor the CP engine progress, for example by looking for changes in current ring pointer (i.e. wait and check whether the value changed). If the ring pointer does not change declare a lockup.
What does everyone think ?
thank you
Vladimir Dergachev
thanks, john.c
-- John Clemens http://www.deater.net/john john at deater.net "I Hate Quotes" -- Samuel L. Clemens
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