gem5  v22.0.0.1
•All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Modules Pages
events.hh
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
3  * All rights reserved.
4  *
5  * This software was developed by the University of Cambridge Computer
6  * Laboratory as part of the CTSRD Project, with support from the UK Higher
7  * Education Innovation Fund (HEIF).
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions are
11  * met: redistributions of source code must retain the above copyright
12  * notice, this list of conditions and the following disclaimer;
13  * redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution;
16  * neither the name of the copyright holders nor the names of its
17  * contributors may be used to endorse or promote products derived from
18  * this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #ifndef __KERN_FREEBSD_EVENTS_HH__
34 #define __KERN_FREEBSD_EVENTS_HH__
35 
36 #include "base/compiler.hh"
37 #include "kern/system_events.hh"
38 #include "sim/guest_abi.hh"
39 
40 namespace gem5
41 {
42 
43 GEM5_DEPRECATED_NAMESPACE(FreeBSD, free_bsd);
44 namespace free_bsd
45 {
46 
47 void onUDelay(ThreadContext *tc, uint64_t div, uint64_t mul, uint64_t time);
48 
54 template <typename ABI, typename Base>
55 class SkipUDelay : public Base
56 {
57  private:
62  uint64_t argDivToNs;
63 
67  uint64_t argMultToNs;
68 
69  public:
70  SkipUDelay(PCEventScope *s, const std::string &desc, Addr addr,
71  uint64_t mult, uint64_t div) :
72  Base(s, desc, addr), argDivToNs(div), argMultToNs(mult)
73  {}
74 
75  void
76  process(ThreadContext *tc) override
77  {
78  // Use Addr since it's handled specially and will act as a natively
79  // sized data type.
80  std::function<void(ThreadContext *, Addr)> call_udelay =
81  [this](ThreadContext *tc, Addr time) {
82  onUDelay(tc, argDivToNs, argMultToNs, time);
83  };
84  invokeSimcall<ABI>(tc, call_udelay);
85  Base::process(tc);
86  }
87 };
88 
89 } // namespace free_bsd
90 } // namespace gem5
91 
92 #endif
gem5::VegaISA::s
Bitfield< 1 > s
Definition: pagetable.hh:64
gem5::free_bsd::SkipUDelay
A class to skip udelay() and related calls in the kernel.
Definition: events.hh:55
gem5::free_bsd::SkipUDelay::argMultToNs
uint64_t argMultToNs
value to multiple arg by to create ns.
Definition: events.hh:67
gem5::free_bsd::SkipUDelay::argDivToNs
uint64_t argDivToNs
value to divide arg by to create ns.
Definition: events.hh:62
gem5::loader::FreeBSD
@ FreeBSD
Definition: object_file.hh:90
gem5::auxv::Base
@ Base
Definition: aux_vector.hh:74
gem5::ThreadContext
ThreadContext is the external interface to all thread state for anything outside of the CPU.
Definition: thread_context.hh:94
compiler.hh
gem5::Addr
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition: types.hh:147
gem5::GEM5_DEPRECATED_NAMESPACE
GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi)
gem5::free_bsd::onUDelay
void onUDelay(ThreadContext *tc, uint64_t div, uint64_t mul, uint64_t time)
Definition: events.cc:52
guest_abi.hh
system_events.hh
gem5::free_bsd::SkipUDelay::SkipUDelay
SkipUDelay(PCEventScope *s, const std::string &desc, Addr addr, uint64_t mult, uint64_t div)
Definition: events.hh:70
gem5::free_bsd::SkipUDelay::process
void process(ThreadContext *tc) override
Definition: events.hh:76
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: gpu_translation_state.hh:37
gem5::PCEventScope
Definition: pc_event.hh:67
gem5::X86ISA::addr
Bitfield< 3 > addr
Definition: types.hh:84
Generated on Wed Jul 13 2022 10:39:22 for gem5 by doxygen 1.8.17