Joel Hestness
62e05ed78a
x86: Add checkpointing capability to devices
...
Add checkpointing capability to the Intel 8254 timer, CMOS, I8042,
PS2 Keyboard and Mouse, I82094AA, I8237, I8254, I8259, and speaker
devices
2011-02-06 22:14:18 -08:00
Steve Reinhardt
6f1187943c
Replace curTick global variable with accessor functions.
...
This step makes it easy to replace the accessor functions
(which still access a global variable) with ones that access
per-thread curTick values.
2011-01-07 21:50:29 -08:00
Steve Reinhardt
3f9f4bf3d6
devices: undo cset 017baf09599f that added timer drain functions.
...
It's not the right fix for the checkpoint deadlock problem
Brad was having, and creates another bug where the system can
deadlock on restore. Brad can't reproduce the original bug
right now, so we'll wait until it arises again and then try
to fix it the right way then.
2010-09-16 20:24:05 -07:00
Brad Beckmann
283be34a99
devices: Fixed periodic interrupts to work with draining
...
Added drain functions to the RTC and 8254 timer so that periodic interrupts
stop when the system is draining. This patch is needed to checkpoint in
timing mode. Otherwise under certain situations, the event queue will never
be completely empty.
2010-08-20 11:46:13 -07:00
Nathan Binkert
e99828b06a
tick: rename Clock namespace to SimClock
2010-04-15 16:24:12 -07:00
Gabe Black
8b2ac20753
X86: Keep track of what the initial count value was in the LAPIC timer.
2009-04-19 03:56:57 -07:00
Gabe Black
a2599e4fc1
X86: Set up a mechanism for the I8254 timer to cause interrupts.
2008-10-11 15:15:34 -07:00
Gabe Black
a6600fdd88
Devices: Make the Intel8254Timer device only use pointers to its counters.
2008-10-11 01:49:39 -07:00
Nathan Binkert
e06321091d
eventq: convert all usage of events to use the new API.
...
For now, there is still a single global event queue, but this is
necessary for making the steps towards a parallelized m5.
2008-10-09 04:58:24 -07:00
Gabe Black
da7f512067
Timer: Fill out the periodic modes a little.
2008-06-12 00:56:07 -04:00
Gabe Black
4f9a0402f6
Dev: Seperate the 8254 timer from tsunami and use it in that and the PC.
2008-06-12 00:54:48 -04:00
