arch, base, cpu, dev, mem, sim: Remove #if 0-ed out code.

This code will be preserved through version control, but otherwise
creates clutter and will rot in place since it's never compiled.

Change-Id: Id265f6deac445116843956ea5cf1210d8127274e
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18608
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>

5 files changed, 0 insertions, 174 deletions

diff --git a/src/dev/alpha/tsunami_pchip.cc b/src/dev/alpha/tsunami_pchip.cc
index d8f9fd1d3..bf172209a 100644
--- a/src/dev/alpha/tsunami_pchip.cc
+++ b/src/dev/alpha/tsunami_pchip.cc
@@ -264,23 +264,6 @@ TsunamiPChip::dmaAddr(const PciBusAddr &dev, Addr busAddr) const
     Addr pteAddr;
     Addr dmaAddr;
 
-#if 0
-    DPRINTF(IdeDisk, "Translation for bus address: %#x\n", busAddr);
-    for (int i = 0; i < 4; i++) {
-        DPRINTF(IdeDisk, "(%d) base:%#x mask:%#x\n",
-                i, wsba[i], wsm[i]);
-
-        windowBase = wsba[i];
-        windowMask = ~wsm[i] & (ULL(0xfff) << 20);
-
-        if ((busAddr & windowMask) == (windowBase & windowMask)) {
-            DPRINTF(IdeDisk, "Would have matched %d (wb:%#x wm:%#x --> ba&wm:%#x wb&wm:%#x)\n",
-                    i, windowBase, windowMask, (busAddr & windowMask),
-                    (windowBase & windowMask));
-        }
-    }
-#endif
-
     for (int i = 0; i < 4; i++) {
 
         windowBase = wsba[i];
diff --git a/src/dev/net/ns_gige.cc b/src/dev/net/ns_gige.cc
index 29e886717..e180e7c8e 100644
--- a/src/dev/net/ns_gige.cc
+++ b/src/dev/net/ns_gige.cc
@@ -485,41 +485,6 @@ NSGigE::write(PacketPtr pkt)
                                        CFGR_PCI64_DET);
             }
 
-// all these #if 0's are because i don't THINK the kernel needs to
-// have these implemented. if there is a problem relating to one of
-// these, you may need to add functionality in.
-
-// grouped together and #if 0'ed to avoid empty if body and make clang happy
-#if 0
-            if (reg & CFGR_TBI_EN) ;
-            if (reg & CFGR_MODE_1000) ;
-
-            if (reg & CFGR_PINT_DUPSTS ||
-                reg & CFGR_PINT_LNKSTS ||
-                reg & CFGR_PINT_SPDSTS)
-                ;
-
-            if (reg & CFGR_TMRTEST) ;
-            if (reg & CFGR_MRM_DIS) ;
-            if (reg & CFGR_MWI_DIS) ;
-
-            if (reg & CFGR_DATA64_EN) ;
-            if (reg & CFGR_M64ADDR) ;
-            if (reg & CFGR_PHY_RST) ;
-            if (reg & CFGR_PHY_DIS) ;
-
-            if (reg & CFGR_REQALG) ;
-            if (reg & CFGR_SB) ;
-            if (reg & CFGR_POW) ;
-            if (reg & CFGR_EXD) ;
-            if (reg & CFGR_PESEL) ;
-            if (reg & CFGR_BROM_DIS) ;
-            if (reg & CFGR_EXT_125) ;
-            if (reg & CFGR_BEM) ;
-
-            if (reg & CFGR_T64ADDR) ;
-            // panic("CFGR_T64ADDR is read only register!\n");
-#endif
             if (reg & CFGR_AUTO_1000)
                 panic("CFGR_AUTO_1000 not implemented!\n");
 
@@ -553,13 +518,6 @@ NSGigE::write(PacketPtr pkt)
             eepromClk = reg & MEAR_EECLK;
 
             // since phy is completely faked, MEAR_MD* don't matter
-
-// grouped together and #if 0'ed to avoid empty if body and make clang happy
-#if 0
-            if (reg & MEAR_MDIO) ;
-            if (reg & MEAR_MDDIR) ;
-            if (reg & MEAR_MDC) ;
-#endif
             break;
 
           case PTSCR:
@@ -603,26 +561,6 @@ NSGigE::write(PacketPtr pkt)
 
           case TX_CFG:
             regs.txcfg = reg;
-#if 0
-            if (reg & TX_CFG_CSI) ;
-            if (reg & TX_CFG_HBI) ;
-            if (reg & TX_CFG_MLB) ;
-            if (reg & TX_CFG_ATP) ;
-            if (reg & TX_CFG_ECRETRY) {
-                /*
-                 * this could easily be implemented, but considering
-                 * the network is just a fake pipe, wouldn't make
-                 * sense to do this
-                 */
-            }
-
-            if (reg & TX_CFG_BRST_DIS) ;
-#endif
-
-#if 0
-            /* we handle our own DMA, ignore the kernel's exhortations */
-            if (reg & TX_CFG_MXDMA) ;
-#endif
 
             // also, we currently don't care about fill/drain
             // thresholds though this may change in the future with
@@ -651,22 +589,6 @@ NSGigE::write(PacketPtr pkt)
 
           case RX_CFG:
             regs.rxcfg = reg;
-#if 0
-            if (reg & RX_CFG_AEP) ;
-            if (reg & RX_CFG_ARP) ;
-            if (reg & RX_CFG_STRIPCRC) ;
-            if (reg & RX_CFG_RX_RD) ;
-            if (reg & RX_CFG_ALP) ;
-            if (reg & RX_CFG_AIRL) ;
-
-            /* we handle our own DMA, ignore what kernel says about it */
-            if (reg & RX_CFG_MXDMA) ;
-
-            //also, we currently don't care about fill/drain thresholds
-            //though this may change in the future with more realistic
-            //networks or a driver which changes it according to feedback
-            if (reg & (RX_CFG_DRTH | RX_CFG_DRTH0)) ;
-#endif
             break;
 
           case PQCR:
@@ -695,10 +617,6 @@ NSGigE::write(PacketPtr pkt)
             acceptArp = (reg & RFCR_AARP) ? true : false;
             multicastHashEnable = (reg & RFCR_MHEN) ? true : false;
 
-#if 0
-            if (reg & RFCR_APAT)
-                panic("RFCR_APAT not implemented!\n");
-#endif
             if (reg & RFCR_UHEN)
                 panic("Unicast hash filtering not used by drivers!\n");
 
@@ -780,10 +698,6 @@ NSGigE::write(PacketPtr pkt)
                 regs.tbisr |= (TBISR_MR_AN_COMPLETE | TBISR_MR_LINK_STATUS);
             }
 
-#if 0
-            if (reg & TBICR_MR_RESTART_AN) ;
-#endif
-
             break;
 
           case TBISR:
@@ -795,11 +709,6 @@ NSGigE::write(PacketPtr pkt)
             regs.tanar |= reg & ~(TANAR_RF1 | TANAR_RF2 | TANAR_UNUSED);
 
             // Pause capability unimplemented
-#if 0
-            if (reg & TANAR_PS2) ;
-            if (reg & TANAR_PS1) ;
-#endif
-
             break;
 
           case TANLPAR:
@@ -1309,26 +1218,6 @@ NSGigE::rxKick()
             cmdsts &= 0xffff0000;
             cmdsts += rxPacket->length;   //i.e. set CMDSTS_SIZE
 
-#if 0
-            /*
-             * all the driver uses these are for its own stats keeping
-             * which we don't care about, aren't necessary for
-             * functionality and doing this would just slow us down.
-             * if they end up using this in a later version for
-             * functional purposes, just undef
-             */
-            if (rxFilterEnable) {
-                cmdsts &= ~CMDSTS_DEST_MASK;
-                const EthAddr &dst = rxFifoFront()->dst();
-                if (dst->unicast())
-                    cmdsts |= CMDSTS_DEST_SELF;
-                if (dst->multicast())
-                    cmdsts |= CMDSTS_DEST_MULTI;
-                if (dst->broadcast())
-                    cmdsts |= CMDSTS_DEST_MASK;
-            }
-#endif
-
             IpPtr ip(rxPacket);
             if (extstsEnable && ip) {
                 extsts |= EXTSTS_IPPKT;
diff --git a/src/dev/net/ns_gige.hh b/src/dev/net/ns_gige.hh
index 5745c3040..7f0752a89 100644
--- a/src/dev/net/ns_gige.hh
+++ b/src/dev/net/ns_gige.hh
@@ -170,10 +170,6 @@ class NSGigE : public EtherDevBase
 
     /** pci settings */
     bool ioEnable;
-#if 0
-    bool memEnable;
-    bool bmEnable;
-#endif
 
     /*** BASIC STRUCTURES FOR TX/RX ***/
     /* Data FIFOs */
diff --git a/src/dev/net/sinic.cc b/src/dev/net/sinic.cc
index 8d73d1542..c6260078c 100644
--- a/src/dev/net/sinic.cc
+++ b/src/dev/net/sinic.cc
@@ -1170,40 +1170,6 @@ Device::rxFilter(const EthPacketPtr &packet)
 
     panic("receive filter not implemented\n");
     bool drop = true;
-
-#if 0
-    string type;
-
-    EthHdr *eth = packet->eth();
-    if (eth->unicast()) {
-        // If we're accepting all unicast addresses
-        if (acceptUnicast)
-            drop = false;
-
-        // If we make a perfect match
-        if (acceptPerfect && params->eaddr == eth.dst())
-            drop = false;
-
-        if (acceptArp && eth->type() == ETH_TYPE_ARP)
-            drop = false;
-
-    } else if (eth->broadcast()) {
-        // if we're accepting broadcasts
-        if (acceptBroadcast)
-            drop = false;
-
-    } else if (eth->multicast()) {
-        // if we're accepting all multicasts
-        if (acceptMulticast)
-            drop = false;
-
-    }
-
-    if (drop) {
-        DPRINTF(Ethernet, "rxFilter drop\n");
-        DDUMP(EthernetData, packet->data, packet->length);
-    }
-#endif
     return drop;
 }
 
diff --git a/src/dev/storage/simple_disk.cc b/src/dev/storage/simple_disk.cc
index bc52e7ec5..26141c48c 100644
--- a/src/dev/storage/simple_disk.cc
+++ b/src/dev/storage/simple_disk.cc
@@ -83,14 +83,6 @@ void
 SimpleDisk::write(Addr addr, baddr_t block, int count)
 {
     panic("unimplemented!\n");
-
-#if 0
-    uint8_t *data = physmem->dma_addr(addr, count);
-    if (!data)
-        panic("dma out of range! write addr=%#x count=%d\n", addr, count);
-
-    image->write(data, block, count);
-#endif
 }
 
 SimpleDisk *