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author | Gabe Black <gblack@eecs.umich.edu> | 2008-10-11 01:37:04 -0700 |
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committer | Gabe Black <gblack@eecs.umich.edu> | 2008-10-11 01:37:04 -0700 |
commit | 119e127d7128edfb729101b92ca160c1f01391ca (patch) | |
tree | 98eb5337e41132e51f3578bb4a709833b7a96876 /src/dev/x86/intdev.hh | |
parent | 8c532d629732e93fa23a38328b653eb4c2314936 (diff) | |
download | gem5-119e127d7128edfb729101b92ca160c1f01391ca.tar.xz |
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.
Diffstat (limited to 'src/dev/x86/intdev.hh')
-rw-r--r-- | src/dev/x86/intdev.hh | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/dev/x86/intdev.hh b/src/dev/x86/intdev.hh new file mode 100644 index 000000000..7a369f8fa --- /dev/null +++ b/src/dev/x86/intdev.hh @@ -0,0 +1,80 @@ +/* + * 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 + */ + +#ifndef __DEV_X86_INTDEV_HH__ +#define __DEV_X86_INTDEV_HH__ + +#include <assert.h> + +#include "sim/sim_object.hh" +#include "params/X86IntPin.hh" + +namespace X86ISA { + +class IntDev +{ + public: + virtual ~IntDev() + {} + virtual void + signalInterrupt(int line) = 0; +}; + +class IntPin : public SimObject +{ + protected: + IntDev * device; + int line; + + public: + typedef X86IntPinParams Params; + + const Params * + params() const + { + return dynamic_cast<const Params *>(_params); + } + + IntPin(Params *p) : SimObject(p), + device(dynamic_cast<IntDev *>(p->device)), line(p->line) + { + assert(device); + } + + void + signalInterrupt() + { + device->signalInterrupt(line); + } +}; + +}; // namespace X86ISA + +#endif //__DEV_X86_INTDEV_HH__ |