* 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.
+ *
+ * Authors: Ali Saidi
*/
/** @file
* Isa Fake Device implementation
*/
-#include <deque>
-#include <string>
-#include <vector>
-
#include "base/trace.hh"
#include "dev/isa_fake.hh"
#include "mem/packet.hh"
-#include "sim/builder.hh"
+#include "mem/packet_access.hh"
#include "sim/system.hh"
using namespace std;
IsaFake::IsaFake(Params *p)
: BasicPioDevice(p)
{
- pioSize = p->pio_size;
+ if (!p->ret_bad_addr)
+ pioSize = p->pio_size;
+
+ retData8 = p->ret_data8;
+ retData16 = p->ret_data16;
+ retData32 = p->ret_data32;
+ retData64 = p->ret_data64;
}
Tick
-IsaFake::read(Packet *pkt)
+IsaFake::read(PacketPtr pkt)
{
- assert(pkt->result == Unknown);
- assert(pkt->addr >= pioAddr && pkt->addr < pioAddr + pioSize);
-
- pkt->time += pioDelay;
-
- DPRINTF(Tsunami, "read va=%#x size=%d\n", pkt->addr, pkt->size);
-
- switch (pkt->size) {
- pkt->set(0xFFFFFFFFFFFFFFFFULL);
- break;
- case sizeof(uint32_t):
- pkt->set((uint32_t)0xFFFFFFFF);
- break;
- case sizeof(uint16_t):
- pkt->set((uint16_t)0xFFFF);
- break;
- case sizeof(uint8_t):
- pkt->set((uint8_t)0xFF);
- break;
- default:
- panic("invalid access size(?) for PCI configspace!\n");
+ assert(pkt->result == Packet::Unknown);
+
+ if (params()->warn_access != "")
+ warn("Device %s accessed by read to address %#x size=%d\n",
+ name(), pkt->getAddr(), pkt->getSize());
+ if (params()->ret_bad_addr) {
+ DPRINTF(Tsunami, "read to bad address va=%#x size=%d\n",
+ pkt->getAddr(), pkt->getSize());
+ pkt->result = Packet::BadAddress;
+ } else {
+ assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
+ DPRINTF(Tsunami, "read va=%#x size=%d\n",
+ pkt->getAddr(), pkt->getSize());
+ switch (pkt->getSize()) {
+ case sizeof(uint64_t):
+ pkt->set(retData64);
+ break;
+ case sizeof(uint32_t):
+ pkt->set(retData32);
+ break;
+ case sizeof(uint16_t):
+ pkt->set(retData16);
+ break;
+ case sizeof(uint8_t):
+ pkt->set(retData8);
+ break;
+ default:
+ panic("invalid access size!\n");
+ }
+ pkt->result = Packet::Success;
}
- pkt->result = Success;
return pioDelay;
}
Tick
-IsaFake::write(Packet *pkt)
+IsaFake::write(PacketPtr pkt)
{
- pkt->time += pioDelay;
- DPRINTF(Tsunami, "write - va=%#x size=%d \n", pkt->addr, pkt->size);
- pkt->result = Success;
+ if (params()->warn_access != "") {
+ uint64_t data;
+ switch (pkt->getSize()) {
+ case sizeof(uint64_t):
+ data = pkt->get<uint64_t>();
+ break;
+ case sizeof(uint32_t):
+ data = pkt->get<uint32_t>();
+ break;
+ case sizeof(uint16_t):
+ data = pkt->get<uint16_t>();
+ break;
+ case sizeof(uint8_t):
+ data = pkt->get<uint8_t>();
+ break;
+ default:
+ panic("invalid access size!\n");
+ }
+ warn("Device %s accessed by write to address %#x size=%d data=%#x\n",
+ name(), pkt->getAddr(), pkt->getSize(), data);
+ }
+ if (params()->ret_bad_addr) {
+ DPRINTF(Tsunami, "write to bad address va=%#x size=%d \n",
+ pkt->getAddr(), pkt->getSize());
+ pkt->result = Packet::BadAddress;
+ } else {
+ DPRINTF(Tsunami, "write - va=%#x size=%d \n",
+ pkt->getAddr(), pkt->getSize());
+
+ if (params()->update_data) {
+ switch (pkt->getSize()) {
+ case sizeof(uint64_t):
+ retData64 = pkt->get<uint64_t>();
+ break;
+ case sizeof(uint32_t):
+ retData32 = pkt->get<uint32_t>();
+ break;
+ case sizeof(uint16_t):
+ retData16 = pkt->get<uint16_t>();
+ break;
+ case sizeof(uint8_t):
+ retData8 = pkt->get<uint8_t>();
+ break;
+ default:
+ panic("invalid access size!\n");
+ }
+ }
+ pkt->result = Packet::Success;
+ }
return pioDelay;
}
-BEGIN_DECLARE_SIM_OBJECT_PARAMS(IsaFake)
-
- Param<Addr> pio_addr;
- Param<Tick> pio_latency;
- Param<Addr> pio_size;
- SimObjectParam<Platform *> platform;
- SimObjectParam<System *> system;
-
-END_DECLARE_SIM_OBJECT_PARAMS(IsaFake)
-
-BEGIN_INIT_SIM_OBJECT_PARAMS(IsaFake)
-
- INIT_PARAM(pio_addr, "Device Address"),
- INIT_PARAM(pio_latency, "Programmed IO latency"),
- INIT_PARAM(pio_size, "Size of address range"),
- INIT_PARAM(platform, "platform"),
- INIT_PARAM(system, "system object")
-
-END_INIT_SIM_OBJECT_PARAMS(IsaFake)
-
-CREATE_SIM_OBJECT(IsaFake)
+IsaFake *
+IsaFakeParams::create()
{
- IsaFake::Params *p = new IsaFake::Params;
- p->name = getInstanceName();
- p->pio_addr = pio_addr;
- p->pio_delay = pio_latency;
- p->pio_size = pio_size;
- p->platform = platform;
- p->system = system;
- return new IsaFake(p);
+ return new IsaFake(this);
}
-
-REGISTER_SIM_OBJECT("IsaFake", IsaFake)