ARM: Add VExpress_E support with PCIe to gem5

configs/common/FSConfig.py

@@ -210,8 +210,8 @@ def makeArmSystem(mem_mode, machine_type, mdesc = None, bare_metal=False):
         self.realview = RealViewPBX()
     elif machine_type == "RealView_EB":
         self.realview = RealViewEB()
-    elif machine_type == "VersatileExpress":
-        self.realview = VExpress()
+    elif machine_type == "VExpress_ELT":
+        self.realview = VExpress_ELT()
     else:
         print "Unknown Machine Type"
         sys.exit(1)
@@ -221,8 +221,12 @@ def makeArmSystem(mem_mode, machine_type, mdesc = None, bare_metal=False):
         use_cf = True
         self.cf0 = CowIdeDisk(driveID='master')
         self.cf0.childImage(mdesc.disk())
+        # default to an IDE controller rather than a CF one
+        # assuming we've got one
+        try:
+            self.realview.ide.disks = [self.cf0]
+        except:
             self.realview.cf_ctrl.disks = [self.cf0]
-
     if bare_metal:
         # EOT character on UART will end the simulation
         self.realview.uart.end_on_eot = True
@@ -261,7 +265,6 @@ def makeArmSystem(mem_mode, machine_type, mdesc = None, bare_metal=False):
     self.physmem.port = self.membus.port
     self.realview.attachOnChipIO(self.membus)
     self.realview.attachIO(self.iobus)
-
     self.intrctrl = IntrControl()
     self.terminal = Terminal()
     self.vncserver = VncServer()

src/arch/arm/ArmSystem.py

@@ -42,7 +42,8 @@ from System import System
 class ArmMachineType(Enum):
     map = {'RealView_EB' : 827,
            'RealView_PBX' : 1901,
-           'VersatileExpress' : 2272}
+           'VExpress_ELT' : 2272,
+           'VExpress_CA9' : 2272}
 
 class ArmSystem(System):
     type = 'ArmSystem'

src/dev/arm/RealView.py

@@ -43,6 +43,8 @@
 from m5.params import *
 from m5.proxy import *
 from Device import BasicPioDevice, PioDevice, IsaFake, BadAddr, DmaDevice
+from Pci import PciConfigAll
+from Ethernet import NSGigE, IGbE_e1000, IGbE_igb
 from Ide import *
 from Platform import Platform
 from Terminal import Terminal
@@ -132,6 +134,7 @@ class Pl111(AmbaDmaDevice):
 class RealView(Platform):
     type = 'RealView'
     system = Param.System(Parent.any, "system")
+    pci_cfg_base = Param.Addr(0, "Base address of PCI Configuraiton Space")
 
 # Reference for memory map and interrupt number
 # RealView Platform Baseboard Explore for Cortex-A9 User Guide(ARM DUI 0440A)
@@ -147,7 +150,7 @@ class RealViewPBX(RealView):
     kmi0   = Pl050(pio_addr=0x10006000, int_num=52)
     kmi1   = Pl050(pio_addr=0x10007000, int_num=53, is_mouse=True)
     a9scu  = A9SCU(pio_addr=0x1f000000)
-    cf_ctrl = IdeController(disks=[], pci_func=0, pci_dev=0, pci_bus=0,
+    cf_ctrl = IdeController(disks=[], pci_func=0, pci_dev=7, pci_bus=2,
                             io_shift = 1, ctrl_offset = 2, Command = 0x1,
                             BAR0 = 0x18000000, BAR0Size = '16B',
                             BAR1 = 0x18000100, BAR1Size = '1B',
@@ -279,7 +282,8 @@ class RealViewEB(RealView):
        self.flash_fake.pio    = bus.port
        self.smcreg_fake.pio   = bus.port
 
-class VExpress(RealView):
+class VExpress_ELT(RealView):
+    pci_cfg_base = 0xD0000000
     elba_uart = Pl011(pio_addr=0xE0009000, int_num=42)
     uart = Pl011(pio_addr=0xFF009000, int_num=121)
     realview_io = RealViewCtrl(proc_id0=0x0C000222, pio_addr=0xFF000000)
@@ -295,12 +299,19 @@ class VExpress(RealView):
     elba_kmi0   = Pl050(pio_addr=0xE0006000, int_num=52)
     elba_kmi1   = Pl050(pio_addr=0xE0007000, int_num=53)
     a9scu  = A9SCU(pio_addr=0xE0200000)
-    cf_ctrl = IdeController(disks=[], pci_func=0, pci_dev=0, pci_bus=0,
+    cf_ctrl = IdeController(disks=[], pci_func=0, pci_dev=0, pci_bus=2,
                             io_shift = 2, ctrl_offset = 2, Command = 0x1,
                             BAR0 = 0xFF01A000, BAR0Size = '256B',
                             BAR1 = 0xFF01A100, BAR1Size = '4096B',
                             BAR0LegacyIO = True, BAR1LegacyIO = True)
 
+    pciconfig = PciConfigAll()
+    ethernet = IGbE_e1000(pci_bus=0, pci_dev=0, pci_func=0,
+                          InterruptLine=1, InterruptPin=1)
+
+    ide = IdeController(disks = [], pci_bus=0, pci_dev=1, pci_func=0,
+                        InterruptLine=2, InterruptPin=2)
+
     l2x0_fake      = IsaFake(pio_addr=0xE0202000, pio_size=0xfff)
     dmac_fake      = AmbaFake(pio_addr=0xE0020000)
     uart1_fake     = AmbaFake(pio_addr=0xE000A000)
@@ -341,6 +352,11 @@ class VExpress(RealView):
        self.elba_kmi0.pio       = bus.port
        self.elba_kmi1.pio       = bus.port
        self.cf_ctrl.pio         = bus.port
+       self.ide.pio             = bus.port
+       self.ethernet.pio        = bus.port
+       self.pciconfig.pio       = bus.default
+       bus.use_default_range    = True
+
        self.l2x0_fake.pio       = bus.port
        self.dmac_fake.pio       = bus.port
        self.uart1_fake.pio      = bus.port

src/dev/arm/gic.cc

@@ -46,6 +46,7 @@
 #include "debug/GIC.hh"
 #include "debug/IPI.hh"
 #include "dev/arm/gic.hh"
+#include "dev/arm/realview.hh"
 #include "dev/terminal.hh"
 #include "mem/packet.hh"
 #include "mem/packet_access.hh"
@@ -98,6 +99,10 @@ Gic::Gic(const Params *p)
         }
     }
 
+    RealView *rv = dynamic_cast<RealView*>(p->platform);
+    assert(rv);
+    rv->setGic(this);
+
 }
 
 Tick

src/dev/arm/realview.cc

@@ -50,6 +50,7 @@
 
 #include "config/the_isa.hh"
 #include "cpu/intr_control.hh"
+#include "dev/arm/gic.hh"
 #include "dev/arm/realview.hh"
 #include "dev/terminal.hh"
 #include "sim/system.hh"
@@ -88,27 +89,28 @@ RealView::clearConsoleInt()
 void
 RealView::postPciInt(int line)
 {
-    panic("Need implementation\n");
+    gic->sendInt(line);
 }
 
 void
 RealView::clearPciInt(int line)
 {
-    panic("Need implementation\n");
+    gic->clearInt(line);
 }
 
 Addr
 RealView::pciToDma(Addr pciAddr) const
 {
-    panic("Need implementation\n");
-    M5_DUMMY_RETURN
+    return pciAddr;
 }
 
 
 Addr
 RealView::calcPciConfigAddr(int bus, int dev, int func)
 {
+    if (bus != 0)
         return ULL(-1);
+    return params()->pci_cfg_base | ((func & 7) << 16) | ((dev & 0x1f) << 19);
 }
 
 Addr
@@ -120,8 +122,7 @@ RealView::calcPciIOAddr(Addr addr)
 Addr
 RealView::calcPciMemAddr(Addr addr)
 {
-    panic("Need implementation\n");
-    M5_DUMMY_RETURN
+    return addr;
 }
 
 RealView *

src/dev/arm/realview.hh

@@ -61,8 +61,15 @@ class RealView : public Platform
     /** Pointer to the system */
     System *system;
 
+    Gic *gic;
+
   public:
     typedef RealViewParams Params;
+    const Params *
+    params() const {
+        return dynamic_cast<const Params *>(_params);
+    }
+
     /**
      * Constructor for the Tsunami Class.
      * @param name name of the object
@@ -71,6 +78,9 @@ class RealView : public Platform
      */
     RealView(const Params *p);
 
+    /** Give platform a pointer to interrupt controller */
+    void setGic(Gic *_gic) { gic = _gic; }
+
     /**
      * Return the interrupting frequency to AlphaAccess
      * @return frequency of RTC interrupts

src/dev/pcidev.cc

@@ -143,7 +143,7 @@ PciDev::PciDev(const Params *p)
         }
     }
 
-    plat->registerPciDevice(0, p->pci_dev, p->pci_func,
+    plat->registerPciDevice(p->pci_bus, p->pci_dev, p->pci_func,
             letoh(config.interruptLine));
 }