gem5/dev/pcidev.hh

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/*
* Copyright (c) 2004 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* @file
* Interface for devices using PCI configuration
*/
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
#ifndef __DEV_PCIDEV_HH__
#define __DEV_PCIDEV_HH__
#include "dev/io_device.hh"
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
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#include "dev/pcireg.h"
#include "dev/platform.hh"
class PciConfigAll;
class MemoryController;
/**
* This class encapulates the first 64 bytes of a singles PCI
* devices config space that in configured by the configuration file.
*/
class PciConfigData : public SimObject
{
public:
/**
* Constructor to initialize the devices config space to 0.
*/
PciConfigData(const std::string &name)
: SimObject(name)
{
memset(config.data, 0, sizeof(config.data));
memset(BARAddrs, 0, sizeof(BARAddrs));
memset(BARSize, 0, sizeof(BARSize));
}
/** The first 64 bytes */
PCIConfig config;
/** The size of the BARs */
uint32_t BARSize[6];
/** The addresses of the BARs */
Addr BARAddrs[6];
};
/**
* PCI device, base implemnation is only config space.
* Each device is connected to a PCIConfigSpace device
* which returns -1 for everything but the pcidevs that
* register with it. This object registers with the PCIConfig space
* object.
*/
class PciDev : public DmaDevice
{
protected:
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
struct Params;
Params *_params;
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
public:
struct Params
{
std::string name;
Platform *plat;
MemoryController *mmu;
/**
* A pointer to the configspace all object that calls us when
* a read comes to this particular device/function.
*/
PciConfigAll *configSpace;
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
/**
* A pointer to the object that contains the first 64 bytes of
* config space
*/
PciConfigData *configData;
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
/** The bus number we are on */
uint32_t busNum;
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
/** The device number we have */
uint32_t deviceNum;
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
/** The function number */
uint32_t functionNum;
};
const Params *params() const { return _params; }
protected:
/** The current config space. Unlike the PciConfigData this is
* updated during simulation while continues to refelect what was
* in the config file.
*/
PCIConfig config;
/** The size of the BARs */
uint32_t BARSize[6];
/** The current address mapping of the BARs */
Addr BARAddrs[6];
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
protected:
Platform *plat;
PciConfigData *configData;
public:
Addr pciToDma(Addr pciAddr) const
{ return plat->pciToDma(pciAddr); }
void
intrPost()
{ plat->postPciInt(configData->config.hdr.pci0.interruptLine); }
void
intrClear()
{ plat->clearPciInt(configData->config.hdr.pci0.interruptLine); }
uint8_t
interruptLine()
{ return configData->config.hdr.pci0.interruptLine; }
public:
/**
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
* Constructor for PCI Dev. This function copies data from the
* config file object PCIConfigData and registers the device with
* a PciConfigAll object.
*/
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
PciDev(Params *params);
virtual Fault read(MemReqPtr &req, uint8_t *data) {
return No_Fault;
}
virtual Fault write(MemReqPtr &req, const uint8_t *data) {
return No_Fault;
}
/**
* Write to the PCI config space data that is stored locally. This may be
* overridden by the device but at some point it will eventually call this
* for normal operations that it does not need to override.
* @param offset the offset into config space
* @param size the size of the write
* @param data the data to write
*/
virtual void WriteConfig(int offset, int size, uint32_t data);
/**
* Read from the PCI config space data that is stored locally. This may be
* overridden by the device but at some point it will eventually call this
* for normal operations that it does not need to override.
* @param offset the offset into config space
* @param size the size of the read
* @param data pointer to the location where the read value should be stored
*/
virtual void ReadConfig(int offset, int size, 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);
};
Use parameter structs for initialization so it's easier to add new devices. Abstract the Platform more so that it is unnecessary to know know platform specifics for interrupting or translating PCI DMA addresses. dev/ide_ctrl.cc: convert to parameter struct for initialization use the interrupt functions in the PciDev base class convert from tsunami to using platform We don't need an interrupt controller here. dev/ide_ctrl.hh: don't use Tsunami, use Platform make the IdeDisk a friend so that it can access my plaform convert to parameter struct for construction dev/ide_disk.cc: don't use tsunami references, but platform references dev/ns_gige.cc: Convert to parameter struct for initialzation. Use code in base class for interrupts so we don't need to know anything about the platform. Don't need an IntrControl *. dev/ns_gige.hh: We don't need a Tsunami * anymore convert to a parameter struct for construction dev/pcidev.cc: deal with new parameter struct dev/pcidev.hh: - Move all of the configuration parameters into a param struct that we can pass into the constructor. - Add a Platform * for accessing new generic interrupt post/clear and dma address translation fuctions - Create functions for posting/clearing interrupts and translating dma addresses dev/platform.cc: have default functions that panic on pci calls dev/platform.hh: don't make the pci stuff pure virtual, but rather provide default implementations that panic. Also, add dma address translation. dev/tsunami.cc: this-> isn't necessary here. add pci address translation dev/tsunami.hh: implement the pciToDma address translation --HG-- extra : convert_revision : 7db27a2fa1f1bd84704921ec7ca0280b5653c43e
2004-11-13 21:45:22 +01:00
#endif // __DEV_PCIDEV_HH__