diff options
Diffstat (limited to 'src/dev/arm/generic_timer.hh')
| -rw-r--r-- | src/dev/arm/generic_timer.hh | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/dev/arm/generic_timer.hh b/src/dev/arm/generic_timer.hh index 7e6bd2af3..d8f7f54e2 100644 --- a/src/dev/arm/generic_timer.hh +++ b/src/dev/arm/generic_timer.hh @@ -54,6 +54,7 @@ class Checkpoint; class GenericTimerParams; +class GenericTimerMemParams; /// Global system counter. It is shared by the architected timers. /// @todo: implement memory-mapped controls @@ -273,4 +274,61 @@ class GenericTimerISA : public ArmISA::BaseISADevice unsigned cpu; }; +class GenericTimerMem : public PioDevice +{ + public: + GenericTimerMem(GenericTimerMemParams *p); + + void serialize(std::ostream &os) M5_ATTR_OVERRIDE; + void unserialize(Checkpoint *cp, const std::string &sec) M5_ATTR_OVERRIDE; + + public: // PioDevice + AddrRangeList getAddrRanges() const M5_ATTR_OVERRIDE { return addrRanges; } + Tick read(PacketPtr pkt) M5_ATTR_OVERRIDE; + Tick write(PacketPtr pkt) M5_ATTR_OVERRIDE; + + protected: + uint64_t ctrlRead(Addr addr, size_t size) const; + void ctrlWrite(Addr addr, size_t size, uint64_t value); + + uint64_t timerRead(Addr addr, size_t size) const; + void timerWrite(Addr addr, size_t size, uint64_t value); + + protected: // Registers + static const Addr CTRL_CNTFRQ = 0x000; + static const Addr CTRL_CNTNSAR = 0x004; + static const Addr CTRL_CNTTIDR = 0x008; + static const Addr CTRL_CNTACR_BASE = 0x040; + static const Addr CTRL_CNTVOFF_LO_BASE = 0x080; + static const Addr CTRL_CNTVOFF_HI_BASE = 0x084; + + static const Addr TIMER_CNTPCT_LO = 0x000; + static const Addr TIMER_CNTPCT_HI = 0x004; + static const Addr TIMER_CNTVCT_LO = 0x008; + static const Addr TIMER_CNTVCT_HI = 0x00C; + static const Addr TIMER_CNTFRQ = 0x010; + static const Addr TIMER_CNTEL0ACR = 0x014; + static const Addr TIMER_CNTVOFF_LO = 0x018; + static const Addr TIMER_CNTVOFF_HI = 0x01C; + static const Addr TIMER_CNTP_CVAL_LO = 0x020; + static const Addr TIMER_CNTP_CVAL_HI = 0x024; + static const Addr TIMER_CNTP_TVAL = 0x028; + static const Addr TIMER_CNTP_CTL = 0x02C; + static const Addr TIMER_CNTV_CVAL_LO = 0x030; + static const Addr TIMER_CNTV_CVAL_HI = 0x034; + static const Addr TIMER_CNTV_TVAL = 0x038; + static const Addr TIMER_CNTV_CTL = 0x03C; + + protected: // Params + const AddrRange ctrlRange; + const AddrRange timerRange; + const AddrRangeList addrRanges; + + protected: + /// System counter. + SystemCounter systemCounter; + ArchTimer physTimer; + ArchTimer virtTimer; +}; + #endif // __DEV_ARM_GENERIC_TIMER_HH__ |