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authorAli Saidi <saidi@eecs.umich.edu>2004-05-30 17:45:46 -0400
committerAli Saidi <saidi@eecs.umich.edu>2004-05-30 17:45:46 -0400
commit9d0aa1399157bd90436409a7596377b4591a2d4a (patch)
tree1b2fb62a8ce54801572ca863cdf16d566633ef1f /dev/tsunami_pchip.hh
parentac27e69ef9e8d0791bd62f2f912f51f22529a32b (diff)
downloadgem5-9d0aa1399157bd90436409a7596377b4591a2d4a.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.hh51
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 &section);
};