Andriy Gapon 85f95fffd7 hook userland threads suspend + resume into acpi suspend code ... Also, split power_suspend into power_suspend and power_suspend_early. power_suspend_early is called before the userland is frozen. power_suspend is called after the userland is frozen. Currently only VT switching is hooked to power_suspend_early. This is needed because switching away from X server requires its cooperation, so obviously X server must not be frozen when that happens. Freezing userland during ACPI suspend is useful because not all drivers correctly handle suspension concurrent with other activity. This is especially applicable to drivers ported from other operating systems that suspend all software activity between placing drivers and hardware into suspended state. In particular drm2/radeon (radeonkms) depends on the described procedure. The driver does not have any internal synchronization between suspension activities and processing of userland requests. Many thanks to kib for the code that allows to freeze and thaw all userland threads. Note that ideally we also need to park / inhibit (non-special) kernel threads as well to ensure that they do not call into drivers. MFC after: 17 days		2015-01-27 17:33:18 +00:00
..
apm
blank
daemon	Fix sos@'s name.	2015-01-07 21:44:57 +00:00
dragon
fade
fire
green
logo
rain
snake
star
warp
scgfbrndr.c
schistory.c
scmouse.c
scterm-teken.c
scterm.c
scvesactl.c
scvgarndr.c
scvidctl.c
scvtb.c
syscons.c	hook userland threads suspend + resume into acpi suspend code	2015-01-27 17:33:18 +00:00
syscons.h
sysmouse.c	Use a common tunable to choose between vt(4)/sc(4)	2014-06-27 17:50:33 +00:00