diff options
author | Ali Saidi <saidi@eecs.umich.edu> | 2004-05-30 17:45:46 -0400 |
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committer | Ali Saidi <saidi@eecs.umich.edu> | 2004-05-30 17:45:46 -0400 |
commit | 9d0aa1399157bd90436409a7596377b4591a2d4a (patch) | |
tree | 1b2fb62a8ce54801572ca863cdf16d566633ef1f /dev/tsunami_pchip.hh | |
parent | ac27e69ef9e8d0791bd62f2f912f51f22529a32b (diff) | |
download | gem5-9d0aa1399157bd90436409a7596377b4591a2d4a.tar.xz |
Cleaned up and commented code. I think we are ready to merge with head.
dev/baddev.hh:
dev/pcidev.hh:
dev/tsunami.hh:
dev/tsunami_cchip.hh:
dev/tsunami_io.hh:
dev/tsunami_pchip.hh:
Added doxygen comments
dev/pciconfigall.hh:
Added doxygen comments. Made the hlist of devices private and provided
members to modify the data.
dev/pcidev.cc:
updated for change in pciconfigall
dev/tsunami_pchip.cc:
Deleted commented out code we don't need
kern/linux/linux_syscalls.cc:
Simplified the number -> name conversion.
kern/linux/linux_syscalls.hh:
Removed StandardNumber and replaced with Number.
kern/linux/linux_system.cc:
kern/linux/linux_system.hh:
LinuxSkipIdeDelay50msEvent was simply the same as the SkipFunc event,
so I removed it. Same with with LinuxSkipFuncEvent.
--HG--
extra : convert_revision : 1508c335f87d90373f5772f3a0407ea13e858d7e
Diffstat (limited to 'dev/tsunami_pchip.hh')
-rw-r--r-- | dev/tsunami_pchip.hh | 51 |
1 files changed, 49 insertions, 2 deletions
diff --git a/dev/tsunami_pchip.hh b/dev/tsunami_pchip.hh index 3ed66c54c..44f145a60 100644 --- a/dev/tsunami_pchip.hh +++ b/dev/tsunami_pchip.hh @@ -42,28 +42,75 @@ class TsunamiPChip : public FunctionalMemory { private: + /** The base address of this device */ Addr addr; + + /** The size of mappad from the above address */ static const Addr size = 0xfff; protected: + /** + * pointer to the tsunami object. + * This is our access to all the other tsunami + * devices. + */ Tsunami *tsunami; + /** Window Base addresses */ uint64_t wsba[4]; + + /** Window masks */ uint64_t wsm[4]; + + /** Translated Base Addresses */ uint64_t tba[4]; public: + /** + * Register the PChip with the mmu and init all wsba, wsm, and tba to 0 + * @param name the name of thes device + * @param t a pointer to the tsunami device + * @param a the address which we respond to + * @param mmu the mmu we are to register with + */ TsunamiPChip(const std::string &name, Tsunami *t, Addr a, MemoryController *mmu); - // @todo This hack does a quick and dirty translation of the PCI bus address to - // a valid DMA address. This is described in 10-10 of the Tsunami book, should be fixed + /** + * Translate a PCI bus address to a memory address for DMA. + * @todo Andrew says this needs to be fixed. What's wrong with it? + * @param busAddr PCI address to translate. + * @return memory system address + */ Addr translatePciToDma(Addr busAddr); + /** + * Process a read to the PChip. + * @param req Contains the address to read from. + * @param data A pointer to write the read data to. + * @return The fault condition of the access. + */ virtual Fault read(MemReqPtr &req, uint8_t *data); + + /** + * Process a write to the PChip. + * @param req Contains the address to write to. + * @param data The data to write. + * @return The fault condition of the access. + */ virtual Fault write(MemReqPtr &req, const uint8_t *data); + /** + * Serialize this object to the given output stream. + * @param os The stream to serialize to. + */ virtual void serialize(std::ostream &os); + + /** + * Reconstruct the state of this object from a checkpoint. + * @param cp The checkpoint use. + * @param section The section name of this object + */ virtual void unserialize(Checkpoint *cp, const std::string §ion); }; |