From bf3223d7ce681db8ca59dac49c6b44b672012e5d Mon Sep 17 00:00:00 2001 From: Ali Saidi Date: Mon, 6 Nov 2006 16:24:25 -0500 Subject: [PATCH] delete pcifake, tsunamifake. Combine BadAddr/IsaFake into one src/SConscript: remove pcifake and tsunami fake from sconscript src/dev/isa_fake.cc: src/dev/isa_fake.hh: combine badaddr and isa fake into one src/python/m5/objects/Pci.py: remove pcifake src/python/m5/objects/Tsunami.py: make badaddr derive from isafake --HG-- extra : convert_revision : 91470db60aa1de6b85827304e27bd3414cc9d8d1 --- src/SConscript | 2 - src/dev/isa_fake.cc | 137 +++++++++++-------------------- src/dev/isa_fake.hh | 32 +++----- src/python/m5/objects/Pci.py | 3 - src/python/m5/objects/Tsunami.py | 6 +- 5 files changed, 64 insertions(+), 116 deletions(-) diff --git a/src/SConscript b/src/SConscript index 28f39bc29..d938d533f 100644 --- a/src/SConscript +++ b/src/SConscript @@ -227,7 +227,6 @@ full_system_sources = Split(''' dev/ns_gige.cc dev/pciconfigall.cc dev/pcidev.cc - dev/pcifake.cc dev/pktfifo.cc dev/platform.cc dev/simconsole.cc @@ -235,7 +234,6 @@ full_system_sources = Split(''' dev/tsunami.cc dev/tsunami_cchip.cc dev/tsunami_io.cc - dev/tsunami_fake.cc dev/tsunami_pchip.cc dev/uart.cc diff --git a/src/dev/isa_fake.cc b/src/dev/isa_fake.cc index ccc9a1f7c..103fdd8ce 100644 --- a/src/dev/isa_fake.cc +++ b/src/dev/isa_fake.cc @@ -25,18 +25,13 @@ * (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 -#include -#include - #include "base/trace.hh" #include "dev/isa_fake.hh" #include "mem/packet.hh" @@ -49,74 +44,67 @@ using namespace std; IsaFake::IsaFake(Params *p) : BasicPioDevice(p) { - pioSize = p->pio_size; -} - -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"); - } - 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; -} + if (!params()->retBadAddr) + pioSize = p->pio_size; -BadAddr::BadAddr(Params *p) - : BasicPioDevice(p) -{ + memset(&retData, p->retData, sizeof(retData)); } void -BadAddr::init() +IsaFake::init() { // Only init this device if it's connected to anything. if (pioPort) PioDevice::init(); } + Tick -BadAddr::read(PacketPtr pkt) +IsaFake::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; + + 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(retData); + break; + case sizeof(uint32_t): + pkt->set((uint32_t)retData); + break; + case sizeof(uint16_t): + pkt->set((uint16_t)retData); + break; + case sizeof(uint8_t): + pkt->set((uint8_t)retData); + break; + default: + panic("invalid access size!\n"); + } + pkt->result = Packet::Success; + } return pioDelay; } Tick -BadAddr::write(PacketPtr pkt) +IsaFake::write(PacketPtr pkt) { - DPRINTF(Tsunami, "write to bad address va=%#x size=%d \n", - pkt->getAddr(), pkt->getSize()); - pkt->result = Packet::BadAddress; + 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()); + pkt->result = Packet::Success; + } return pioDelay; } @@ -125,6 +113,8 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(IsaFake) Param pio_addr; Param pio_latency; Param pio_size; + Param ret_bad_addr; + Param ret_data; SimObjectParam platform; SimObjectParam system; @@ -135,6 +125,8 @@ 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(ret_bad_addr, "Return pkt status BadAddr"), + INIT_PARAM(ret_data, "Data to return if not bad addr"), INIT_PARAM(platform, "platform"), INIT_PARAM(system, "system object") @@ -147,40 +139,11 @@ CREATE_SIM_OBJECT(IsaFake) p->pio_addr = pio_addr; p->pio_delay = pio_latency; p->pio_size = pio_size; + p->retBadAddr = ret_bad_addr; + p->retData = ret_data; p->platform = platform; p->system = system; return new IsaFake(p); } REGISTER_SIM_OBJECT("IsaFake", IsaFake) - -BEGIN_DECLARE_SIM_OBJECT_PARAMS(BadAddr) - - Param pio_addr; - Param pio_latency; - SimObjectParam platform; - SimObjectParam 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) diff --git a/src/dev/isa_fake.hh b/src/dev/isa_fake.hh index 6665f1a78..c4072e42c 100644 --- a/src/dev/isa_fake.hh +++ b/src/dev/isa_fake.hh @@ -25,8 +25,7 @@ * (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 @@ -42,10 +41,11 @@ #include "mem/packet.hh" /** - * IsaFake is a device that returns -1 on all reads and - * accepts all writes. It is meant to be placed at an address range + * IsaFake is a device that returns, BadAddr, 1 or 0 on all reads and + * rites. It is meant to be placed at an address range * so that an mcheck doesn't occur when an os probes a piece of hw - * that doesn't exist (e.g. UARTs1-3). + * that doesn't exist (e.g. UARTs1-3), or catch requests in the memory system + * that have no responders.. */ class IsaFake : public BasicPioDevice { @@ -53,9 +53,12 @@ class IsaFake : public BasicPioDevice struct Params : public BasicPioDevice::Params { Addr pio_size; + bool retBadAddr; + uint8_t retData; }; protected: const Params *params() const { return (const Params*)_params; } + uint64_t retData; public: /** @@ -77,23 +80,8 @@ class IsaFake : public BasicPioDevice * @param data the data to not write. */ virtual Tick write(PacketPtr pkt); -}; -/** - * BadAddr is a device that fills the packet's result field with "BadAddress". - * @todo: Consider consolidating with IsaFake and similar classes. - */ -class BadAddr : public BasicPioDevice -{ - public: - struct Params : public BasicPioDevice::Params - { - }; - - BadAddr(Params *p); - virtual void init(); - virtual Tick read(PacketPtr pkt); - virtual Tick write(PacketPtr pkt); + void init(); }; -#endif // __TSUNAMI_FAKE_HH__ +#endif // __ISA_FAKE_HH__ diff --git a/src/python/m5/objects/Pci.py b/src/python/m5/objects/Pci.py index 55bf23534..9d40adbfe 100644 --- a/src/python/m5/objects/Pci.py +++ b/src/python/m5/objects/Pci.py @@ -57,6 +57,3 @@ class PciDevice(DmaDevice): pio_latency = Param.Latency('1ns', "Programmed IO latency in simticks") configdata = Param.PciConfigData(Parent.any, "PCI Config data") config_latency = Param.Latency('20ns', "Config read or write latency") - -class PciFake(PciDevice): - type = 'PciFake' diff --git a/src/python/m5/objects/Tsunami.py b/src/python/m5/objects/Tsunami.py index 42bcab089..78ab65b31 100644 --- a/src/python/m5/objects/Tsunami.py +++ b/src/python/m5/objects/Tsunami.py @@ -14,9 +14,11 @@ class TsunamiCChip(BasicPioDevice): class IsaFake(BasicPioDevice): type = 'IsaFake' pio_size = Param.Addr(0x8, "Size of address range") + ret_data = Param.UInt8(0xFF, "Default data to return") + ret_bad_addr = Param.Bool(False, "Return pkt status bad address on access") -class BadAddr(BasicPioDevice): - type = 'BadAddr' +class BadAddr(IsaFake): + ret_bad_addr = Param.Bool(True, "Return pkt status bad address on access") class TsunamiIO(BasicPioDevice): type = 'TsunamiIO' -- 2.30.2