History log of /gem5/src/dev/x86/i8254.cc
Revision Date Author Comments
# 14290:fa11f961ae4e 06-Sep-2019 Gabe Black <gabeblack@google.com>

dev, x86: Convert x86 devices to the generic int pins.

Change-Id: I4551ad00cf205c31555c90b53e87bc206a8d8729
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20701
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>


# 13229:b45254f2733a 12-Oct-2018 Gabe Black <gabeblack@google.com>

x86: Use little endian packet accessors.

We know data is little endian, so we can use those accessors
explicitly.

Change-Id: I09aa7f1e525ad1346e932ce4a772b64bf59dc350
Reviewed-on: https://gem5-review.googlesource.com/c/13456
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>


# 11793:ef606668d247 09-Nov-2016 Brandon Potter <brandon.potter@amd.com>

style: [patch 1/22] use /r/3648/ to reorganize includes


# 10905:a6ca6831e775 07-Jul-2015 Andreas Sandberg <andreas.sandberg@arm.com>

sim: Refactor the serialization base class

Objects that are can be serialized are supposed to inherit from the
Serializable class. This class is meant to provide a unified API for
such objects. However, so far it has mainly been used by SimObjects
due to some fundamental design limitations. This changeset redesigns
to the serialization interface to make it more generic and hide the
underlying checkpoint storage. Specifically:

* Add a set of APIs to serialize into a subsection of the current
object. Previously, objects that needed this functionality would
use ad-hoc solutions using nameOut() and section name
generation. In the new world, an object that implements the
interface has the methods serializeSection() and
unserializeSection() that serialize into a named /subsection/ of
the current object. Calling serialize() serializes an object into
the current section.

* Move the name() method from Serializable to SimObject as it is no
longer needed for serialization. The fully qualified section name
is generated by the main serialization code on the fly as objects
serialize sub-objects.

* Add a scoped ScopedCheckpointSection helper class. Some objects
need to serialize data structures, that are not deriving from
Serializable, into subsections. Previously, this was done using
nameOut() and manual section name generation. To simplify this,
this changeset introduces a ScopedCheckpointSection() helper
class. When this class is instantiated, it adds a new /subsection/
and subsequent serialization calls during the lifetime of this
helper class happen inside this section (or a subsection in case
of nested sections).

* The serialize() call is now const which prevents accidental state
manipulation during serialization. Objects that rely on modifying
state can use the serializeOld() call instead. The default
implementation simply calls serialize(). Note: The old-style calls
need to be explicitly called using the
serializeOld()/serializeSectionOld() style APIs. These are used by
default when serializing SimObjects.

* Both the input and output checkpoints now use their own named
types. This hides underlying checkpoint implementation from
objects that need checkpointing and makes it easier to change the
underlying checkpoint storage code.


# 10642:9d3b6e7dd205 06-Jan-2015 cdirik<cdirik@micron.com>

dev: prevent intel 8254 timer counter events firing before startup

This change includes edits to Intel8254Timer to prevent counter events firing
before startup to comply with SimObject initialization call sequence.

Committed by: Nilay Vaish <nilay@cs.wisc.edu>


# 8232:b28d06a175be 15-Apr-2011 Nathan Binkert <nate@binkert.org>

trace: reimplement the DTRACE function so it doesn't use a vector
At the same time, rename the trace flags to debug flags since they
have broader usage than simply tracing. This means that
--trace-flags is now --debug-flags and --trace-help is now --debug-help


# 7903:7fcfb515d7bf 07-Feb-2011 Joel Hestness <hestness@cs.utexas.edu>

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


# 5898:541097c69e22 25-Feb-2009 Gabe Black <gblack@eecs.umich.edu>

X86: Add makeAtomicResponse to the read/write functions of x86 devices.


# 5827:ac2c268bf4f1 01-Feb-2009 Gabe Black <gblack@eecs.umich.edu>

X86: Rework interrupt pins to allow one to many connections.


# 5642:102cf92b8ea9 11-Oct-2008 Gabe Black <gblack@eecs.umich.edu>

X86: Set up a mechanism for the I8254 timer to cause interrupts.


# 5636:27a9526eea1f 11-Oct-2008 Gabe Black <gblack@eecs.umich.edu>

X86: Change I8254 and PCSpeaker devices from subdevices to SimObjects and eliminate subdevices.