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/* $Id$ */
/* @file
* PCI Configspace implementation
*/
#include <deque>
#include <string>
#include <vector>
#include "base/trace.hh"
#include "cpu/exec_context.hh"
#include "dev/scsi_ctrl.hh"
#include "dev/pciconfigall.hh"
#include "dev/pcidev.hh"
#include "dev/tsunamireg.h"
#include "dev/tsunami.hh"
#include "mem/functional_mem/memory_control.hh"
#include "sim/builder.hh"
#include "sim/system.hh"
using namespace std;
PCIConfigAll::PCIConfigAll(const string &name, Tsunami *t,
Addr addr, Addr mask, MemoryController *mmu)
: MmapDevice(name, addr, mask, mmu), tsunami(t)
{
//Put back pointer in tsunami
tsunami->pciconfig = this;
// Make all the pointers to devices null
for(int x=0; x < MAX_PCI_DEV; x++)
for(int y=0; y < MAX_PCI_FUNC; y++)
devices[x][y] = NULL;
}
Fault
PCIConfigAll::read(MemReqPtr &req, uint8_t *data)
{
DPRINTF(PCIConfigAll, "read va=%#x size=%d\n",
req->vaddr, req->size);
Addr daddr = (req->paddr & addr_mask);
int device = (daddr >> 11) & 0x1F;
int func = (daddr >> 8) & 0x7;
int reg = daddr & 0xFF;
if (devices[device][func] == NULL) {
switch (req->size) {
// case sizeof(uint64_t):
// *(uint64_t*)data = 0xFFFFFFFFFFFFFFFF;
// return No_Fault;
case sizeof(uint32_t):
*(uint32_t*)data = 0xFFFFFFFF;
return No_Fault;
case sizeof(uint16_t):
*(uint16_t*)data = 0xFFFF;
return No_Fault;
case sizeof(uint8_t):
*(uint8_t*)data = 0xFF;
return No_Fault;
default:
panic("invalid access size(?) for PCI configspace!\n");
}
} else {
switch (req->size) {
case sizeof(uint32_t):
case sizeof(uint16_t):
case sizeof(uint8_t):
devices[device][func]->ReadConfig(reg, req->size, data);
return No_Fault;
default:
panic("invalid access size(?) for PCI configspace!\n");
}
}
DPRINTFN("Tsunami PCI Configspace ERROR: read daddr=%#x size=%d\n", daddr, req->size);
return No_Fault;
}
Fault
PCIConfigAll::write(MemReqPtr &req, const uint8_t *data)
{
Addr daddr = (req->paddr & addr_mask);
int device = (daddr >> 11) & 0x1F;
int func = (daddr >> 8) & 0x7;
int reg = daddr & 0xFF;
union {
uint8_t byte_value;
uint16_t half_value;
uint32_t word_value;
};
if (devices[device][func] == NULL)
panic("Attempting to write to config space on non-existant device\n");
else {
switch (req->size) {
case sizeof(uint8_t):
byte_value = *(uint8_t*)data;
break;
case sizeof(uint16_t):
half_value = *(uint16_t*)data;
break;
case sizeof(uint32_t):
word_value = *(uint32_t*)data;
break;
default:
panic("invalid access size(?) for PCI configspace!\n");
}
}
DPRINTF(PCIConfigAll, "write - va=%#x size=%d data=%#x\n",
req->vaddr, req->size, word_value);
devices[device][func]->WriteConfig(reg, req->size, word_value);
return No_Fault;
}
void
PCIConfigAll::serialize(std::ostream &os)
{
// code should be written
}
void
PCIConfigAll::unserialize(Checkpoint *cp, const std::string §ion)
{
//code should be written
}
BEGIN_DECLARE_SIM_OBJECT_PARAMS(PCIConfigAll)
SimObjectParam<Tsunami *> tsunami;
SimObjectParam<MemoryController *> mmu;
Param<Addr> addr;
Param<Addr> mask;
END_DECLARE_SIM_OBJECT_PARAMS(PCIConfigAll)
BEGIN_INIT_SIM_OBJECT_PARAMS(PCIConfigAll)
INIT_PARAM(tsunami, "Tsunami"),
INIT_PARAM(mmu, "Memory Controller"),
INIT_PARAM(addr, "Device Address"),
INIT_PARAM(mask, "Address Mask")
END_INIT_SIM_OBJECT_PARAMS(PCIConfigAll)
CREATE_SIM_OBJECT(PCIConfigAll)
{
return new PCIConfigAll(getInstanceName(), tsunami, addr, mask, mmu);
}
REGISTER_SIM_OBJECT("PCIConfigAll", PCIConfigAll)
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