Radeon Page-Flipping Patches Come About

[darkbasic]

Not only in openarena, but in the whole desktop...

[darkbasic]

I recompiled xf86-video-ati without patches but I still see corruption in openarena. Is it possible it's kernel patches-related (I'm using latest drm-radeon-testing + latest fplip kernel patches)? Xorg.0.log does not show pageflipping anymore...

[monraaf]

Yes the corruption is gone now and I get pageflips. Both initial and after xrandr now give me pitch 6912 (/4 1728), I guess that's correct after all, 6912 being 256 byte aligned. But a new problem turned up After a while the gears stalled and won't turn anymore.

(II) RADEON(0): radeon_dri2_schedule_flip:592 fevent[0x9d226e8]
(WW) RADEON(0): flip queue failed: Device or resource busy
(WW) RADEON(0): Page flip failed: Device or resource busy
(II) RADEON(0): radeon_dri2_schedule_flip:592 fevent[0x9b87b70]

I guess it's waiting for an interrupt that's never coming or something after last radeon_dri2_schedule_flip.

[evil_core]

I got r500, d-r-t, ddx and mesa from master, and fullscreen apps hungs when running fullscreen gl apps at first frame(probably) when pageflipping is enabled.

[   281.062] (WW) RADEON(0): flip queue failed: Device or resource busy
[   281.062] (WW) RADEON(0): Page flip failed: Device or resource busy

http://carme.pld-linux.org/~evil/radeon/xorg_pageflip.log

[evil_core]

-- PROBLEM RESOLVED ---

I got r500, d-r-t, ddx and mesa from master, and fullscreen apps hungs when running fullscreen gl apps at first frame(probably) when pageflipping is enabled.

[   281.062] (WW) RADEON(0): flip queue failed: Device or resource busy
[   281.062] (WW) RADEON(0): Page flip failed: Device or resource busy

http://carme.pld-linux.org/~evil/rad...g_pageflip.log

--- PROBLEM RESOLVED ---

Anyway disabling VSync, helps.
Tested by running vblank_mode=0 quake3

[Decatf]

Same problem here with full screen apps. I compiled the patches against drm-radeon-testing and xf86-video-ati against commit 040140b5d7cbeaf5d83687bc87e4a236ff9f0cbd.

It freezes and shows the Device or resource busy message. I am testing with the OpenArena benchmark.
openarena +exec anholt 2>&1 | egrep -e '[0-9]+ frames'

It crashes vblank_mode=0 too.

[evil_core]

agd5f told me some hours ago, that vblank_mode=0 disables pageflip also, so its not a solution

[Paulie889]

Here with RV530 GL apps also hangs when fullscreen with pageflipping enabled, however it is not triggered instantly, after restart it works for some time before it starts hanging again.

[agd5f]

New patches up:

http://people.freedesktop.org/~agd5f/pflip/

[monraaf]

Okay that's a lot better now. I tested with and Evergreen and rs780. A couple of observations:

• No more stalls or "Device or resource busy" messages.
• There is an issue with compiz, when you alt-tab to another window, there's a lot of flickering and not all screen content is correctly updated.
• There's is another pitch issue. On my rs780 when I enable color tiling, regardless of whether I have enabled or disabled page-flipping (through "EnablePageFlip" xorg.conf option) when I enable color tiling the screen has a kind of staircase effect. This happens at 1680x1050, at 1280x1024 there's no such issue. Also this does not happen with ddx without pageflip patches.
• Openarena benchmark gives 30fps on my Evergreen with page-flipping, without page-flipping (through xorg.conf option) I get 60fps.