From 119e127d7128edfb729101b92ca160c1f01391ca Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Sat, 11 Oct 2008 01:37:04 -0700
Subject: X86: Create the IntDev and IntPin system.

The IntDev class is a base for anything that supports IntPins. IntPins allow
devices to generically trigger interrupts on a particular pin of an IntDev
device without having to know what the device is or what pin they're attached
to.
---
 src/dev/x86/X86IntPin.py | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 src/dev/x86/X86IntPin.py

(limited to 'src/dev/x86/X86IntPin.py')

diff --git a/src/dev/x86/X86IntPin.py b/src/dev/x86/X86IntPin.py
new file mode 100644
index 000000000..372b4ab66
--- /dev/null
+++ b/src/dev/x86/X86IntPin.py
@@ -0,0 +1,37 @@
+# Copyright (c) 2008 The Regents of The University of Michigan
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Authors: Gabe Black
+
+from m5.params import *
+from m5.SimObject import SimObject
+
+class X86IntPin(SimObject):
+    type = 'X86IntPin'
+    cxx_class = 'X86ISA::IntPin'
+
+    line = Param.Int("Interrupt line for this pin")
+    device = Param.SimObject("Device which handles interrupts")
-- 
cgit v1.2.3


From 6a3f255a84d93f3e621319fd81f355416e385c8c Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Sat, 31 Jan 2009 23:33:54 -0800
Subject: X86: Rework interrupt pins to allow one to many connections.

---
 src/dev/x86/X86IntPin.py | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

(limited to 'src/dev/x86/X86IntPin.py')

diff --git a/src/dev/x86/X86IntPin.py b/src/dev/x86/X86IntPin.py
index 372b4ab66..35e274624 100644
--- a/src/dev/x86/X86IntPin.py
+++ b/src/dev/x86/X86IntPin.py
@@ -29,9 +29,23 @@
 from m5.params import *
 from m5.SimObject import SimObject
 
-class X86IntPin(SimObject):
-    type = 'X86IntPin'
-    cxx_class = 'X86ISA::IntPin'
+# A generic pin to drive an interrupt signal generated by a device.
+class X86IntSourcePin(SimObject):
+    type = 'X86IntSourcePin'
+    cxx_class = 'X86ISA::IntSourcePin'
 
-    line = Param.Int("Interrupt line for this pin")
-    device = Param.SimObject("Device which handles interrupts")
+# A generic pin to receive an interrupt signal generated by another device.
+class X86IntSinkPin(SimObject):
+    type = 'X86IntSinkPin'
+    cxx_class = 'X86ISA::IntSinkPin'
+
+    device = Param.SimObject("Device this pin belongs to")
+    number = Param.Int("The pin number on the device")
+
+# An interrupt line which is driven by a source pin and drives a sink pin.
+class X86IntLine(SimObject):
+    type = 'X86IntLine'
+    cxx_class = 'X86ISA::IntLine'
+
+    source = Param.X86IntSourcePin("Pin driving this line")
+    sink = Param.X86IntSinkPin("Pin driven by this line")
-- 
cgit v1.2.3