clock_domain.hh (9827:f47274776aa0) | clock_domain.hh (10000:99bd071911cf) |
---|---|
1/* 2 * Copyright (c) 2013 ARM Limited | 1/* 2 * Copyright (c) 2013 ARM Limited |
3 * Copyright (c) 2013 Cornell University |
|
3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated --- 20 unchanged lines hidden (view full) --- 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Vasileios Spiliopoulos 38 * Akash Bagdia | 4 * All rights reserved 5 * 6 * The license below extends only to copyright in the software and shall 7 * not be construed as granting a license to any other intellectual 8 * property including but not limited to intellectual property relating 9 * to a hardware implementation of the functionality of the software 10 * licensed hereunder. You may use the software subject to the license 11 * terms below provided that you ensure that this notice is replicated --- 20 unchanged lines hidden (view full) --- 32 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 33 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 34 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 35 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 36 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 37 * 38 * Authors: Vasileios Spiliopoulos 39 * Akash Bagdia |
40 * Christopher Torng |
|
39 */ 40 41/** 42 * @file 43 * ClockDomain declarations. 44 */ 45 46#ifndef __SIM_CLOCK_DOMAIN_HH__ 47#define __SIM_CLOCK_DOMAIN_HH__ 48 | 41 */ 42 43/** 44 * @file 45 * ClockDomain declarations. 46 */ 47 48#ifndef __SIM_CLOCK_DOMAIN_HH__ 49#define __SIM_CLOCK_DOMAIN_HH__ 50 |
51#include <algorithm> 52 |
|
49#include "base/statistics.hh" 50#include "params/ClockDomain.hh" 51#include "params/DerivedClockDomain.hh" 52#include "params/SrcClockDomain.hh" 53#include "sim/sim_object.hh" 54 55/** 56 * Forward declaration 57 */ 58class DerivedClockDomain; 59class VoltageDomain; | 53#include "base/statistics.hh" 54#include "params/ClockDomain.hh" 55#include "params/DerivedClockDomain.hh" 56#include "params/SrcClockDomain.hh" 57#include "sim/sim_object.hh" 58 59/** 60 * Forward declaration 61 */ 62class DerivedClockDomain; 63class VoltageDomain; |
64class ClockedObject; |
|
60 61/** 62 * The ClockDomain provides clock to group of clocked objects bundled 63 * under the same clock domain. The clock domains, in turn, are 64 * grouped into voltage domains. The clock domains provide support for 65 * a hierarchial structure with source and derived domains. 66 */ 67class ClockDomain : public SimObject --- 13 unchanged lines hidden (view full) --- 81 VoltageDomain *_voltageDomain; 82 83 /** 84 * Pointers to potential derived clock domains so we can propagate 85 * changes. 86 */ 87 std::vector<DerivedClockDomain*> children; 88 | 65 66/** 67 * The ClockDomain provides clock to group of clocked objects bundled 68 * under the same clock domain. The clock domains, in turn, are 69 * grouped into voltage domains. The clock domains provide support for 70 * a hierarchial structure with source and derived domains. 71 */ 72class ClockDomain : public SimObject --- 13 unchanged lines hidden (view full) --- 86 VoltageDomain *_voltageDomain; 87 88 /** 89 * Pointers to potential derived clock domains so we can propagate 90 * changes. 91 */ 92 std::vector<DerivedClockDomain*> children; 93 |
94 /** 95 * Pointers to members of this clock domain, so that when the clock 96 * period changes, we can update each member's tick. 97 */ 98 std::vector<ClockedObject*> members; 99 |
|
89 public: 90 91 typedef ClockDomainParams Params; 92 ClockDomain(const Params *p, VoltageDomain *voltage_domain) : 93 SimObject(p), 94 _clockPeriod(0), 95 _voltageDomain(voltage_domain) {} 96 97 /** 98 * Get the clock period. 99 * 100 * @return Clock period in ticks 101 */ 102 inline Tick clockPeriod() const { return _clockPeriod; } 103 104 /** | 100 public: 101 102 typedef ClockDomainParams Params; 103 ClockDomain(const Params *p, VoltageDomain *voltage_domain) : 104 SimObject(p), 105 _clockPeriod(0), 106 _voltageDomain(voltage_domain) {} 107 108 /** 109 * Get the clock period. 110 * 111 * @return Clock period in ticks 112 */ 113 inline Tick clockPeriod() const { return _clockPeriod; } 114 115 /** |
116 * Register a ClockedObject to this ClockDomain. 117 * 118 * @param ClockedObject to add as a member 119 */ 120 void registerWithClockDomain(ClockedObject *c) 121 { 122 assert(c != NULL); 123 assert(std::find(members.begin(), members.end(), c) == members.end()); 124 members.push_back(c); 125 } 126 127 /** |
|
105 * Get the voltage domain. 106 * 107 * @return Voltage domain this clock domain belongs to 108 */ 109 inline VoltageDomain *voltageDomain() const { return _voltageDomain; } 110 111 112 /** --- 27 unchanged lines hidden (view full) --- 140 SrcClockDomain(const Params *p); 141 142 /** 143 * Set new clock value 144 * @param clock The new clock period in ticks 145 */ 146 void clockPeriod(Tick clock_period); 147 | 128 * Get the voltage domain. 129 * 130 * @return Voltage domain this clock domain belongs to 131 */ 132 inline VoltageDomain *voltageDomain() const { return _voltageDomain; } 133 134 135 /** --- 27 unchanged lines hidden (view full) --- 163 SrcClockDomain(const Params *p); 164 165 /** 166 * Set new clock value 167 * @param clock The new clock period in ticks 168 */ 169 void clockPeriod(Tick clock_period); 170 |
171 // Explicitly import the otherwise hidden clockPeriod 172 using ClockDomain::clockPeriod; |
|
148}; 149 150/** 151 * The derived clock domains provides the notion of a clock domain 152 * that is connected to a parent clock domain that can either be a 153 * source clock domain or a derived clock domain. It maintains the 154 * clock divider and provides methods for getting the clock. 155 */ --- 30 unchanged lines hidden --- | 173}; 174 175/** 176 * The derived clock domains provides the notion of a clock domain 177 * that is connected to a parent clock domain that can either be a 178 * source clock domain or a derived clock domain. It maintains the 179 * clock divider and provides methods for getting the clock. 180 */ --- 30 unchanged lines hidden --- |