/*
- * Copyright (c) 2003 The Regents of The University of Michigan
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-/* @file
- * Tsunami PChip
+/** @file
+ * Tsunami PCI interface CSRs
*/
#ifndef __TSUNAMI_PCHIP_HH__
#define __TSUNAMI_PCHIP_HH__
-#include "mem/functional_mem/functional_memory.hh"
#include "dev/tsunami.hh"
+#include "base/range.hh"
+#include "dev/io_device.hh"
-/*
- * Tsunami PChip
+class MemoryController;
+
+/**
+ * A very simple implementation of the Tsunami PCI interface chips.
*/
-class TsunamiPChip : public FunctionalMemory
+class TsunamiPChip : public PioDevice
{
private:
/** The base address of this device */
*/
Tsunami *tsunami;
+ /** Pchip control register */
+ uint64_t pctl;
+
/** Window Base addresses */
uint64_t wsba[4];
* @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
+ * @param hier object to store parameters universal the device hierarchy
+ * @param bus The bus that this device is attached to
*/
TsunamiPChip(const std::string &name, Tsunami *t, Addr a,
- MemoryController *mmu);
+ MemoryController *mmu, HierParams *hier, Bus *pio_bus,
+ Tick pio_latency);
/**
* Translate a PCI bus address to a memory address for DMA.
* @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);
+ virtual Fault * read(MemReqPtr &req, uint8_t *data);
/**
* Process a write to the PChip.
* @param data The data to write.
* @return The fault condition of the access.
*/
- virtual Fault write(MemReqPtr &req, const uint8_t *data);
+ virtual Fault * write(MemReqPtr &req, const uint8_t *data);
/**
* Serialize this object to the given output stream.
* @param section The section name of this object
*/
virtual void unserialize(Checkpoint *cp, const std::string §ion);
+
+ /**
+ * Return how long this access will take.
+ * @param req the memory request to calcuate
+ * @return Tick when the request is done
+ */
+ Tick cacheAccess(MemReqPtr &req);
};
#endif // __TSUNAMI_PCHIP_HH__