Jesse Barnes dc1336ff4f drm/i915: set vblank enabled flag correctly across IRQ install/uninstall ... In the absence of kernel mode setting, many drivers disable IRQs across VT switch. The core DRM vblank code is missing a check for this case however; even after IRQ disable, the vblank code will still have the vblank_enabled flag set, so unless we track the fact that they're disabled at IRQ uninstall time, when we VT switch back in we won't actually re-enable them, which means any apps waiting on vblank before the switch will hang. This patch does that and also adds a sanity check to the wait condition to look for the irq_enabled flag in general, as well as adding a wakeup to the IRQ uninstall path. Fixes fdo bug #18879 with compiz hangs at VT switch. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@linux.ie>		2009-01-11 08:59:52 +10:00
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drm	drm/i915: set vblank enabled flag correctly across IRQ install/uninstall	2009-01-11 08:59:52 +10:00
Makefile	drm: reorganise drm tree to be more future proof.	2008-07-14 10:45:01 +10:00