* (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: Miguel Serrano
- * Ali Saidi
+ * 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"
IsaFake::IsaFake(Params *p)
: BasicPioDevice(p)
{
- pioSize = p->pio_size;
+ if (!params()->retBadAddr)
+ pioSize = p->pio_size;
+
+ retData8 = params()->retData8;
+ retData16 = params()->retData16;
+ retData32 = params()->retData32;
+ retData64 = params()->retData64;
}
Tick
IsaFake::read(PacketPtr pkt)
{
assert(pkt->result == Packet::Unknown);
- 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(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");
+
+ if (params()->warnAccess != "")
+ warn("Device %s accessed by read to address %#x size=%d\n",
+ name(), pkt->getAddr(), pkt->getSize());
+ if (params()->retBadAddr) {
+ 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 = Packet::Success;
return pioDelay;
}
Tick
IsaFake::write(PacketPtr pkt)
{
- DPRINTF(Tsunami, "write - va=%#x size=%d \n", pkt->getAddr(), pkt->getSize());
- pkt->result = Packet::Success;
- return pioDelay;
-}
-
-BadAddr::BadAddr(Params *p)
- : BasicPioDevice(p)
-{
-}
-
-void
-BadAddr::init()
-{
- // Only init this device if it's connected to anything.
- if (pioPort)
- PioDevice::init();
-}
-
-Tick
-BadAddr::read(PacketPtr pkt)
-{
- assert(pkt->result == Packet::Unknown);
- DPRINTF(Tsunami, "read to bad address va=%#x size=%d\n",
- pkt->getAddr(), pkt->getSize());
- pkt->result = Packet::BadAddress;
- return pioDelay;
-}
-
-Tick
-BadAddr::write(PacketPtr pkt)
-{
- DPRINTF(Tsunami, "write to bad address va=%#x size=%d \n",
- pkt->getAddr(), pkt->getSize());
- pkt->result = Packet::BadAddress;
+ if (params()->warnAccess != "") {
+ 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()->retBadAddr) {
+ 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()->updateData) {
+ 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;
}
Param<Addr> pio_addr;
Param<Tick> pio_latency;
Param<Addr> pio_size;
+ Param<bool> ret_bad_addr;
+ Param<bool> update_data;
+ Param<std::string> warn_access;
+ Param<uint8_t> ret_data8;
+ Param<uint16_t> ret_data16;
+ Param<uint32_t> ret_data32;
+ Param<uint64_t> ret_data64;
SimObjectParam<Platform *> platform;
SimObjectParam<System *> system;
INIT_PARAM(pio_addr, "Device Address"),
INIT_PARAM(pio_latency, "Programmed IO latency"),
INIT_PARAM(pio_size, "Size of address range"),
+ INIT_PARAM(ret_bad_addr, "Return pkt status BadAddr"),
+ INIT_PARAM(update_data, "Update returned data"),
+ INIT_PARAM(warn_access, "Warn if this device is touched"),
+ INIT_PARAM(ret_data8, "Data to return if not bad addr"),
+ INIT_PARAM(ret_data16, "Data to return if not bad addr"),
+ INIT_PARAM(ret_data32, "Data to return if not bad addr"),
+ INIT_PARAM(ret_data64, "Data to return if not bad addr"),
INIT_PARAM(platform, "platform"),
INIT_PARAM(system, "system object")
p->pio_addr = pio_addr;
p->pio_delay = pio_latency;
p->pio_size = pio_size;
+ p->retBadAddr = ret_bad_addr;
+ p->updateData = update_data;
+ p->warnAccess = warn_access;
+ p->retData8= ret_data8;
+ p->retData16 = ret_data16;
+ p->retData32 = ret_data32;
+ p->retData64 = ret_data64;
p->platform = platform;
p->system = system;
return new IsaFake(p);
}
REGISTER_SIM_OBJECT("IsaFake", IsaFake)
-
-BEGIN_DECLARE_SIM_OBJECT_PARAMS(BadAddr)
-
- Param<Addr> pio_addr;
- Param<Tick> pio_latency;
- SimObjectParam<Platform *> platform;
- SimObjectParam<System *> system;
-
-END_DECLARE_SIM_OBJECT_PARAMS(BadAddr)
-
-BEGIN_INIT_SIM_OBJECT_PARAMS(BadAddr)
-
- INIT_PARAM(pio_addr, "Device Address"),
- INIT_PARAM(pio_latency, "Programmed IO latency"),
- INIT_PARAM(platform, "platform"),
- INIT_PARAM(system, "system object")
-
-END_INIT_SIM_OBJECT_PARAMS(BadAddr)
-
-CREATE_SIM_OBJECT(BadAddr)
-{
- BadAddr::Params *p = new BadAddr::Params;
- p->name = getInstanceName();
- p->pio_addr = pio_addr;
- p->pio_delay = pio_latency;
- p->platform = platform;
- p->system = system;
- return new BadAddr(p);
-}
-
-REGISTER_SIM_OBJECT("BadAddr", BadAddr)