Import 1.3.93

Documentation/Configure.help

@@ -3179,6 +3179,21 @@ CONFIG_ISDN_DRV_TELES
   different D-channel protocol, or non-standard irq/port/shmem
   settings.
 
+PCBIT-D support
+CONFIG_ISDN_DRV_PCBIT
+  This enables support for the PCBIT ISDN-cards. This card is
+  manufactured in Portugal by Octal. For running this card, 
+  additional firmware is necessary, which has to be downloaded into
+  the card using a utility which is distributed separately.  
+  See Documentation/isdn/README for more information.	
+
+Support for AP1000 multicomputer
+CONFIG_AP1000
+  This enables support for a sparc based parallel multi-computer
+  called an AP1000+. For details on our efforts to port Linux to this
+  machine see http://cap.anu.edu.au/cap/projects/linux or mail to
+  hackers@cafe.anu.edu.au
+
 # need an empty line after last entry, for sed script in Configure.
 
 #

Documentation/devices.tex

@@ -42,7 +42,7 @@ foo \kill}%
 %
 \title{{\bf Linux Allocated Devices}}
 \author{Maintained by H. Peter Anvin $<$hpa@zytor.com$>$}
-\date{Last revised: April 10, 1996}
+\date{Last revised: April 20, 1996}
 \maketitle
 %
 \noindent
@@ -74,6 +74,9 @@ that semantically altered versions are not distributed without
 permission of the author, assuming the author can be contacted without
 an unreasonable effort.
 
+In particular, please don't sent patches for this list to Linus, at
+least not without contacting me first.
+
 \section{Major numbers}
 
 \begin{devicelist}
@@ -160,7 +163,9 @@ an unreasonable effort.
 \major{45}{}{char }{isdn4linux ISDN BRI driver}
 \major{46}{}{char }{Comtrol Rocketport serial card}
 \major{47}{}{char }{Comtrol Rocketport serial card -- alternate devices}
-\major{48}{--59}{}{Unallocated}
+\major{48}{}{char }{SDL RISCom serial card}
+\major{49}{}{char }{SDL RISCom serial card -- alternate devices}
+\major{50}{--59}{}{Unallocated}
 \major{60}{--63}{}{Local/experimental use}
 \major{64}{--119}{}{Unallocated}
 \major{120}{--127}{}{Local/experimental use}
@@ -417,6 +422,9 @@ physical disks.
 	\minor{133}{/dev/exttrp}{External device trap}
 	\minor{134}{/dev/apm\_bios}{Advanced Power Management BIOS}
 	\minor{135}{/dev/rtc}{Real Time Clock}
+	\minor{136}{/dev/qcam0}{QuickCam on {\file lp0}}
+	\minor{137}{/dev/qcam1}{QuickCam on {\file lp1}}
+	\minor{138}{/dev/qcam2}{QuickCam on {\file lp2}}
 \end{devicelist}
 
 \noindent
@@ -557,10 +565,7 @@ number 3).
 	\minor{0}{/dev/ttyC0}{First Cyclades port}
 	\minordots
 	\minor{31}{/dev/ttyC31}{32nd Cyclades port}
-\end{devicelist}
-\noindent
-It would make more sense for these to start at 0...
-\begin{devicelist}
+\\
 \major{  }{}{block}{``Double'' compressed disk}
 	\minor{0}{/dev/double0}{First compressed disk}
 	\minordots
@@ -960,25 +965,28 @@ driver with this number should not cause ill effects to the system
 \major{43}{}{char }{isdn4linux virtual modem}
 	\minor{0}{/dev/ttyI0}{First virtual modem}
 	\minordots
-	\minor{15}{/dev/ttyI15}{16th virtual modem}
+	\minor{63}{/dev/ttyI63}{64th virtual modem}
 \end{devicelist}
 
 \begin{devicelist}
 \major{44}{}{char }{isdn4linux virtual modem -- alternate devices}
 	\minor{0}{/dev/cui0}{Callout device corresponding to {\file ttyI0}}
 	\minordots
-	\minor{15}{/dev/cui15}{Callout device corresponding to {\file ttyI15}}
+	\minor{63}{/dev/cui63}{Callout device corresponding to {\file ttyI63}}
 \end{devicelist}
 
 \begin{devicelist}
 \major{45}{}{char }{isdn4linux ISDN BRI driver}
 	\minor{0}{/dev/isdn0}{First virtual B channel raw data}
 	\minordots
-	\minor{15}{/dev/isdn15}{16th virtual B channel raw data}
-	\minor{16}{/dev/isdnctrl0}{First channel control/debug}
+	\minor{63}{/dev/isdn63}{64th virtual B channel raw data}
+	\minor{64}{/dev/isdnctrl0}{First channel control/debug}
+	\minordots
+	\minor{127}{/dev/isdnctrl63}{64th channel control/debug}
+	\minor{128}{/dev/ippp0}{First SyncPPP device}
 	\minordots
-	\minor{31}{/dev/isdnctrl15}{16th channel control/debug}
-	\minor{128}{/dev/isdninfo}{ISDN monitor interface}
+	\minor{191}{/dev/ippp63}{64th SyncPPP device}
+	\minor{255}{/dev/isdninfo}{ISDN monitor interface}
 \end{devicelist}
 
 \begin{devicelist}
@@ -996,7 +1004,21 @@ driver with this number should not cause ill effects to the system
 \end{devicelist}
 
 \begin{devicelist}
-\major{48}{--59}{}{Unallocated}
+\major{48}{}{char }{SDL RISCom serial card}
+	\minor{0}{/dev/ttyL0}{First RISCom port}
+	\minor{1}{/dev/ttyL1}{Second RISCom port}
+	\minordots
+\end{devicelist}
+
+\begin{devicelist}
+\major{49}{}{char }{SDL RISCom serial card -- alternate devices}
+	\minor{0}{/dev/cul0}{Callout device corresponding to {\file ttyL0}}
+	\minor{1}{/dev/cul1}{Callout device corresponding to {\file ttyL1}}
+	\minordots
+\end{devicelist}
+
+\begin{devicelist}
+\major{50}{--59}{}{Unallocated}
 \end{devicelist}
 
 \begin{devicelist}

Documentation/devices.txt

@@ -2,14 +2,14 @@
 
 	     Maintained by H. Peter Anvin <hpa@zytor.com>
 
-		     Last revised: April 10, 1996
+		     Last revised: April 20, 1996
 
 This list is the successor to Rick Miller's Linux Device List, which
 he stopped maintaining when he got busy with other things in 1993.  It
 is a registry of allocated major device numbers, as well as the
 recommended /dev directory nodes for these devices.
 
-The latest version of this list is included with the Linux kernel
+The lastest version of this list is included with the Linux kernel
 sources in LaTeX and ASCII form.  In case of discrepancy, the LaTeX
 version is authoritative.
 
@@ -31,6 +31,9 @@ that semantically altered versions are not distributed without
 permission of the author, assuming the author can be contacted without
 an unreasonable effort.
 
+In particular, please don't sent patches for this list to Linus, at
+least not without contacting me first.
+
   0 		Unnamed devices (e.g. non-device mounts)
 		  0 = reserved as null device number
 
@@ -243,6 +246,9 @@ an unreasonable effort.
 		133 = /dev/exttrp	External device trap
 		134 = /dev/apm_bios	Advanced Power Management BIOS
 		135 = /dev/rtc		Real Time Clock
+		136 = /dev/qcam0	QuickCam on lp0
+		137 = /dev/qcam1	QuickCam on lp1
+		138 = /dev/qcam2	QuickCam on lp2
 
  11 char	Raw keyboard device
 		  0 = /dev/kbd		Raw keyboard device
@@ -345,9 +351,6 @@ an unreasonable effort.
 		  0 = /dev/ttyC0	First Cyclades port
 		      ...
 		 31 = /dev/ttyC31	32nd Cyclades port
-		
-		It would make more sense for these to start at 0...
-
     block	"Double" compressed disk
 		  0 = /dev/double0	First compressed disk
 		      ...
@@ -658,21 +661,26 @@ an unreasonable effort.
  43 char	isdn4linux virtual modem
 		  0 = /dev/ttyI0	First virtual modem
 		      ...
-		 15 = /dev/ttyI15	16th virtual modem
+		 63 = /dev/ttyI63	64th virtual modem
 
  44 char	isdn4linux virtual modem - alternate devices
 		  0 = /dev/cui0		Callout device corresponding to ttyI0
 		      ...
-		 15 = /dev/cui15	Callout device corresponding to ttyI15
+		 63 = /dev/cui63	Callout device corresponding to ttyI63
 
  45 char	isdn4linux ISDN BRI driver
 		  0 = /dev/isdn0	First virtual B channel raw data
 		      ...
-		 15 = /dev/isdn15	16th virtual B channel raw data
-		 16 = /dev/isdnctrl0	First channel control/debug
+		 63 = /dev/isdn63	64th virtual B channel raw data
+		 64 = /dev/isdnctrl0	First channel control/debug
+		      ...
+		127 = /dev/isdnctrl63	64th channel control/debug
+
+		128 = /dev/ippp0	First SyncPPP device
 		      ...
-		 31 = /dev/isdnctrl15	16th channel control/debug
-		128 = /dev/isdninfo	ISDN monitor interface
+		191 = /dev/ippp63	64th SyncPPP device
+
+		255 = /dev/isdninfo	ISDN monitor interface
 
  46 char	Comtrol Rocketport serial card
 		  0 = /dev/ttyR0	First Rocketport port
@@ -684,7 +692,17 @@ an unreasonable effort.
 		  1 = /dev/cur1		Callout device corresponding to ttyR1
 		      ...
 
- 48-59		UNALLOCATED
+ 48 char	SDL RISCom serial card
+		  0 = /dev/ttyL0	First RISCom port
+		  1 = /dev/ttyL1	Second RISCom port
+		      ...
+
+ 49 char	SDL RISCom serial card - alternate devices
+		  0 = /dev/cul0		Callout device corresponding to ttyL0
+		  1 = /dev/cul1		Callout device corresponding to ttyL1
+		      ...
+
+ 50-59		UNALLOCATED
 
  60-63		LOCAL/EXPERIMENTAL USE
 		Allocated for local/experimental use.  For devices not

Documentation/isdn/CREDITS

@@ -5,7 +5,7 @@ I want to thank all who contributed to this project and especially to:
 Thomas Bogendörfer (tsbogend@bigbug.franken.de)
   Tester, lots of bugfixes and hints.
 
-Alan Cox ()
+Alan Cox (alan@cymru.net)
   For help getting into standard-kernel.
 
 Volker Götz (volker@oops.franken.de)
@@ -24,8 +24,11 @@ Michael Knigge (knick@cove.han.de)
 Andreas Kool (akool@Kool.f.EUnet.de)
   For contribution of the isdnlog/isdnrep-tool
 
-Pedro Roque Marques
-  For lot of new ideas and writing a new driver coming soon.
+Pedro Roque Marques (roque@di.fc.ul.pt)
+  For lot of new ideas and the pcbit driver.
+
+Eberhard Moenkeberg (emoenke@gwdg.de)
+  For testing and help to get into kernel.
 
 Jan den Ouden (denouden@groovin.xs4all.nl)
   For contribution of the teles-driver

Documentation/isdn/README

@@ -44,7 +44,7 @@ README for the ISDN-subsystem
   term to that one, which applies to your local ISDN-environment.
 
   When the link-level-module isdn.o is loaded, it supports up to 16
-  low-level-modules with up to 16 channels. (The number 16 is arbitrarily
+  low-level-modules with up to 64 channels. (The number 64 is arbitrarily
   chosen and can be configured at compile-time --ISDN_MAX in isdn.h).
   A low-level-driver can register itself through an interface (which is
   defined in isdnif.h) and gets assigned a slot.
@@ -65,7 +65,7 @@ README for the ISDN-subsystem
 
    In addition the following devices are made available:
 
-   32 tty-devices (16 cuix and 16 ttyIx) with integrated modem-emulator:
+   128 tty-devices (64 cuix and 64 ttyIx) with integrated modem-emulator:
    The functionality is almost the same as that of a serial device
    (the line-discs are handled by the kernel, which lets you run 
    SLIP, CSLIP and asynchronous PPP through the devices. We have tested 
@@ -473,6 +473,14 @@ README for the ISDN-subsystem
    In this case use ping with the option -i <sec> to increase the interval
    between echo-packets.
 
+   "isdnctrl cbdelay <InterfaceName> [seconds]"
+   Sets the delay (default 5 sec) between an incoming call and start of
+   dialing when callback is enabled.
+
+   "isdnctrl cbhup <InterfaceName> [on|off]"
+   This enables (default) or disables an active hangup (reject) when getting an
+   incoming call for an interface which is configured for callback.
+
    "isdnctrl encap <InterfaceName> <EncapType>"
    Selects the type of packet-encapsulation. The encapsulation can be changed
    only while an interface is down.
@@ -490,6 +498,8 @@ README for the ISDN-subsystem
             IP-address: fc:fc:i1:i2:i3:i4, where i1-4 are the IP-addr.-values.
    syncppp  Synchronous PPP
 
+   uihdlc   HDLC with UI-frame-header (for use with DOS ISPA, option -h1)
+
    Watching packets, using standard-tcpdump will fail for all encapsulations
    except ethernet because tcpdump does not know how to handle packets
    without MAC-header. A patch for tcpdump is included in the utility-package

Documentation/isdn/README.pcbit

+------------------------------------------------------------------------------
+ README file for the PCBIT-D Device Driver.
+------------------------------------------------------------------------------
+
+The PCBIT is a Euro ISDN adapter manufactured in Portugal by Octal and
+developed in cooperation with Portugal Telecom and Inesc.
+The driver interfaces with the standard kernel isdn facilities
+originaly developed by Fritz Elfert in the isdn4linux project.
+
+The common versions of the pcbit board require a firmware that is 
+distributed (and copyrighted) by the manufacturer. To load this
+firmware you need "pcbitctl" availiable on the standard isdn4k-utils
+package or in the pcbit package availiable in:
+
+ftp://ftp.di.fc.ul.pt/pub/systems/Linux/isdn
+
+Known Limitations:
+
+- The board reset proceeding is at the moment incorrect and will only
+allow you to load the firmware after a hard reset.
+
+- Only HDLC in B-channels is supported at the moment. There is now
+current support to X.25 in B or D channels nor LAPD in B
+channels. The main reason is that this two other protocol modes have,
+to my knowledge, very little use. If you want to see them implemented
+*do* send me a mail.
+
+- The driver often triggers errors in the board that i and the
+manufacturer believe to be caused by bugs in the firmware. The current
+version includes several proceedings for error recovery that should
+allow normal operation. Plans for the future include cooperation with
+the manufacturer in order to solve this problems.
+
+Information/hints/help can be obtained in the linux isdn
+mailing list (isdn4linux@hub-wue.franken.de) or directly from me.
+
+regards,
+  Pedro.
+		
+<roque@di.fc.ul.pt>

Documentation/isdn/README.syncppp

@@ -12,7 +12,8 @@ To compile isdn4linux with the sync PPP part, you have
 to answer the appropriate question when doing a "make config"
 Don't forget to load the slhc.o
 module before the isdn.o module, if VJ-compression support
-is not compiled into your kernel. 
+is not compiled into your kernel. (e.g if you have PPP or
+CSLIP in the kernel)
 
 Using isdn4linux with sync PPP:
 -------------------------------
@@ -35,18 +36,20 @@ devices .. and so on.
 I've implemented one additional option for the ipppd:
  'useifip' will get (if set to not 0.0.0.0) the IP address 
  for the negotiation from the attached network-interface. 
+(also: ipppd will try to negotiate pointopoint IP as remote IP)
 You must disable BSD-compression, this implementation can't
 handle compressed packets.
 
-Check the rc.isdn.syncppp file for an example setup script.
+Check the etc/rc.isdn.syncppp in the isdn4kernel-util package
+for an example setup script.
+
+To use the MPPP stuff, you must configure a slave device
+with isdn4linux. Now call the ipppd with the '+mp' option.
+To increase the number of links, you must use the
+'addlink' option of the isdnctrl tool.
 
 enjoy it,
     michael
      
 
-PS: I also implemented generic MP (RFC 1717). But in the 
-current isdn4linux link-level driver there is no 
-(or better say: another) way of doing channel bundling. So,
-don't call the ipppd with the `+mp` option to enable 
-MP negotiation.
 

Documentation/isdn/syncPPP.FAQ

+simple isdn4linux PPP FAQ .. to be continued .. not 'debugged' 
+
+Q: pppd,ipppd, syncPPP , asyncPPP .. what is that ?
+  what should I use?
+A: The pppd is for asynchronous PPP .. asynchron means
+here, the framing is character based. (e.g when
+using ttyI* or tty* devices)
+
+The ipppd handles PPP packets coming in HDLC
+frames (bit based protocol) ... The PPP driver
+in isdn4linux pushs all IP packets direct
+to the network layer and all PPP protocol
+frames to the /dev/ippp* device. 
+So, the ipppd is a simple externel network
+protocol handler.
+
+If you login into a remote machine using the
+/dev/ttyI* devices and then enable PPP on the
+remote terminal server -> use the 'old' pppd
+
+If your remote side immediately starts to send
+frames ... you probably connect to a 
+syncPPP machine .. use the network device part
+of isdn4linux with the 'syncppp' encapsulation
+and make sure, that the ipppd is running and 
+conneted to at least one /dev/ippp*. Check the 
+isdn4linux manual on how to configure a network device.
+
+Q: when I start the ipppd .. I only get the
+   error message "this systems lacks PPP support"
+A: check that at least the device 'ippp0' exists.
+   (you can check this e.g with the program 'ifconfig')
+   The ipppd NEEDS this device under THIS name .. 
+   If this device doesn't exists, use:
+	isdnctrl addif ippp0
+	isdnctrl encap ippp0 syncppp
+	... (see isdn4linux doc for more) ...
+A: Maybe you have compiled the ipppd with another
+   kernel source tree than the kernel you currently
+   run ... 
+
+Q: when I list the netdevices with ifconfig I see, that
+   my ISDN interface has a HWaddr and IRQ=0 and Base 
+   address = 0 
+A: The device is a fake ethernetdevice .. ignore IRQ and baseaddr
+   You need the HWaddr only for ethernet encapsulation.
+   
+
+
+

MAINTAINERS

@@ -248,6 +248,13 @@ M:	mj@k332.feld.cvut.cz
 L:	linux-kernel@vger.rutgers.edu
 S:	Maintained
 
+VFAT FILESYSTEM:
+P:	Gordon Chaffee
+M:	chaffee@plateau.cs.berkeley.edu
+L:	linux-kernel@vger.rutgers.edu
+W:	http://www-plateau.cs.berkeley.edu/people/chaffee
+S:	Maintained
+
 DIGIBOARD DRIVER:
 P:	Christoph Lameter
 M:	clameter@fuller.edu

Makefile

 VERSION = 1
 PATCHLEVEL = 3
-SUBLEVEL = 92
+SUBLEVEL = 93
 
 ARCH = i386
 
@@ -116,8 +116,7 @@ endif
 ARCHIVES	=kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o net/network.a
 FILESYSTEMS	=fs/filesystems.a
 DRIVERS		=drivers/block/block.a \
-		 drivers/char/char.a \
-		 drivers/net/net.a
+		 drivers/char/char.a
 LIBS		=$(TOPDIR)/lib/lib.a
 SUBDIRS		=kernel drivers mm fs net ipc lib
 
@@ -125,6 +124,8 @@ ifeq ($(CONFIG_ISDN),y)
 DRIVERS := $(DRIVERS) drivers/isdn/isdn.a
 endif
 
+DRIVERS := $(DRIVERS) drivers/net/net.a
+
 ifdef CONFIG_CD_NO_IDESCSI
 DRIVERS := $(DRIVERS) drivers/cdrom/cdrom.a
 endif

arch/i386/kernel/signal.c

@@ -61,7 +61,7 @@ static inline void restore_i387_hard(struct _fpstate *buf)
 	}
 #endif
 	current->used_math = 1;
-	current->flags &= PF_USEDFPU;
+	current->flags &= ~PF_USEDFPU;
 	memcpy_fromfs(&current->tss.i387.hard, buf, sizeof(*buf));
 }
 
@@ -133,7 +133,7 @@ static inline struct _fpstate * save_i387_hard(struct _fpstate * buf)
 	if (current->flags & PF_USEDFPU) {
 		__asm__ __volatile__("fnsave %0":"=m" (current->tss.i387.hard));
 		stts();
-		current->flags &= PF_USEDFPU;
+		current->flags &= ~PF_USEDFPU;
 	}
 #else
 	if (current == last_task_used_math) {

arch/sparc/Makefile

-# $Id: Makefile,v 1.6 1995/11/25 00:57:30 davem Exp $
+# $Id: Makefile,v 1.20 1996/04/16 08:02:50 davem Exp $
 # sparc/Makefile
 #
 # Makefile for the architecture dependent flags and dependencies on the
@@ -30,8 +30,11 @@ ARCHIVES := arch/sparc/kernel/kernel.o arch/sparc/mm/mm.o $(ARCHIVES)
 LIBS := $(TOPDIR)/lib/lib.a $(LIBS) $(TOPDIR)/arch/sparc/prom/promlib.a \
 	$(TOPDIR)/arch/sparc/lib/lib.a
 
-aoutimage: vmlinux
-	elftoaout -o aoutimage vmlinux
+ifdef CONFIG_AP1000
+SUBDIRS := $(SUBDIRS) arch/sparc/ap1000
+ARCHIVES := $(TOPDIR)/arch/sparc/ap1000/ap1000lib.o $(ARCHIVES) 
+DRIVERS := $(DRIVERS) drivers/ap1000/ap1000.a
+endif
 
 archclean:
 	rm -f $(TOPDIR)/arch/sparc/boot/boot

arch/sparc/boot/README

@@ -17,5 +17,5 @@ our data area either way because we can be dual purpose.
 More will come....
 
 Hopefully I can write this such that it will work on almost all SUN
-machines in existence.  We'll see ;(
+machines in existance.  We'll see ;(
 

arch/sparc/boot/empirical.h

-/* $Id: empirical.h,v 1.2 1995/11/25 00:57:42 davem Exp $
+/* $Id: empirical.h,v 1.1 1996/04/21 10:17:46 davem Exp $
  * empirical.h:  Nasty hacks....
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)

arch/sparc/boot/init_me.c

-/* $Id: init_me.c,v 1.2 1995/11/25 00:57:44 davem Exp $
+/* $Id: init_me.c,v 1.3 1996/04/21 10:30:09 davem Exp $
  * init_me.c:  Initialize empirical constants and gather some info from
  *             the boot prom.
  *
@@ -11,7 +11,7 @@
 
 #include "empirical.h"   /* Don't ask... */
 
-#define DEBUG_INIT_ME    /* Tell me what's goin on */
+#define DEBUG_INIT_ME    /* Tell me what's going on */
 
 unsigned int nwindows;   /* Set in bare.S */
 unsigned int nwindowsm1;

arch/sparc/config.in

-# $Id: config.in,v 1.8 1996/03/01 07:15:47 davem Exp $
+# $Id: config.in,v 1.9 1996/04/04 16:30:03 tridge Exp $
 # For a description of the syntax of this configuration file,
 # see the Configure script.
 #
@@ -7,16 +7,24 @@ mainmenu_name "Kernel configuration of Linux for SparcStations"
 mainmenu_option next_comment
 comment 'General setup'
 
-# Global things across all Sparc machines.
-define_bool CONFIG_SBUS y
-define_bool CONFIG_SUN_MOUSE y
-define_bool CONFIG_SERIAL y
-define_bool CONFIG_SUN_SERIAL y
-define_bool CONFIG_SUN_KEYBOARD y
-define_bool CONFIG_SUN_CONSOLE y
+bool 'Support for AP1000 multicomputer' CONFIG_AP1000
+
+if [ "$CONFIG_AP1000" = "n" ]; then
+	# Global things across all Sun machines.
+	define_bool CONFIG_SBUS y
+	define_bool CONFIG_SUN_MOUSE y
+	define_bool CONFIG_SERIAL y
+	define_bool CONFIG_SUN_SERIAL y
+	define_bool CONFIG_SUN_KEYBOARD y
+	define_bool CONFIG_SUN_CONSOLE y
+	define_bool CONFIG_SUN_AUXIO y
+	define_bool CONFIG_SUN_IO y
+fi
+
 define_bool CONFIG_NET_ALIAS n
 define_bool CONFIG_BINFMT_AOUT y
 
+
 bool 'Networking support' CONFIG_NET
 bool 'System V IPC' CONFIG_SYSVIPC
 tristate 'Kernel support for ELF binaries' CONFIG_BINFMT_ELF

arch/sparc/defconfig

@@ -5,21 +5,28 @@
 #
 # General setup
 #
+# CONFIG_AP1000 is not set
 CONFIG_SBUS=y
 CONFIG_SUN_MOUSE=y
+CONFIG_SERIAL=y
 CONFIG_SUN_SERIAL=y
 CONFIG_SUN_KEYBOARD=y
 CONFIG_SUN_CONSOLE=y
+CONFIG_SUN_AUXIO=y
+CONFIG_SUN_IO=y
 # CONFIG_NET_ALIAS is not set
 CONFIG_BINFMT_AOUT=y
 CONFIG_NET=y
 CONFIG_SYSVIPC=y
-# CONFIG_BINFMT_ELF is not set
+CONFIG_BINFMT_ELF=y
 
 #
 # Floppy, IDE, and other block devices
 #
 # CONFIG_BLK_DEV_FD is not set
+CONFIG_BLK_DEV_RAM=y
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_BLK_DEV_LOOP is not set
 
 #
 # Networking options
@@ -46,6 +53,7 @@ CONFIG_IP_NOSR=y
 # CONFIG_IPX is not set
 # CONFIG_ATALK is not set
 # CONFIG_AX25 is not set
+# CONFIG_BRIDGE is not set
 # CONFIG_NETLINK is not set
 
 #
@@ -58,7 +66,7 @@ CONFIG_SCSI=y
 #
 CONFIG_BLK_DEV_SD=y
 # CONFIG_CHR_DEV_ST is not set
-# CONFIG_BLK_DEV_SR is not set
+CONFIG_BLK_DEV_SR=y
 # CONFIG_CHR_DEV_SG is not set
 
 #
@@ -66,6 +74,7 @@ CONFIG_BLK_DEV_SD=y
 #
 # CONFIG_SCSI_MULTI_LUN is not set
 CONFIG_SCSI_CONSTANTS=y
+# CONFIG_SCSI_AUTO_BIOSP is not set
 
 #
 # SCSI low-level drivers
@@ -96,8 +105,10 @@ CONFIG_EXT2_FS=y
 CONFIG_PROC_FS=y
 CONFIG_NFS_FS=y
 CONFIG_ROOT_NFS=y
+CONFIG_RNFS_BOOTP=y
+CONFIG_RNFS_RARP=y
 # CONFIG_SMB_FS is not set
-# CONFIG_ISO9660_FS is not set
+CONFIG_ISO9660_FS=y
 # CONFIG_HPFS_FS is not set
 # CONFIG_SYSV_FS is not set
 

arch/sparc/kernel/Makefile

-# $Id: Makefile,v 1.22 1996/03/01 07:15:52 davem Exp $
+# $Id: Makefile,v 1.29 1996/04/04 16:30:17 tridge Exp $
 # Makefile for the linux kernel.
 #
 # Note! Dependencies are done automagically by 'make dep', which also
@@ -7,23 +7,56 @@
 #
 # Note 2! The CFLAGS definitions are now in the main makefile...
 
+ifdef SMP
+
+.S.s:
+	$(CPP) -D__ASSEMBLY__ $(AFLAGS) -ansi $< -o $*.s
+
+.S.o:
+	$(CC) -D__ASSEMBLY__ $(AFLAGS) -ansi -c $< -o $*.o
+
+
+else
+
 .S.s:
 	$(CPP) -D__ASSEMBLY__ -ansi $< -o $*.s
+
 .S.o:
 	$(CC) -D__ASSEMBLY__ -ansi -c $< -o $*.o
 
+
+endif
+
 all: kernel.o head.o
 
 O_TARGET := kernel.o
-O_OBJS   := entry.o wof.o wuf.o etrap.o rtrap.o switch.o traps.o irq.o  \
-	    process.o signal.o ioport.o setup.o idprom.o mp.o c_mp.o    \
+IRQ_OBJS := irq.o sun4m_irq.o sun4c_irq.o
+O_OBJS   := entry.o wof.o wuf.o etrap.o rtrap.o switch.o traps.o ${IRQ_OBJS} \
+	    process.o signal.o ioport.o setup.o idprom.o \
 	    sys_sparc.o sunos_asm.o sparc-stub.o systbls.o sys_sunos.o  \
-	    sunos_ioctl.o time.o windows.o cpu.o auxio.o devices.o ksyms.o \
-	    sclow.o
+	    sunos_ioctl.o time.o windows.o cpu.o devices.o ksyms.o \
+	    sclow.o solaris.o tadpole.o tick14.o
+
+ifdef SMP
+O_OBJS += trampoline.o smp.o rirq.o
+endif
+
+ifdef CONFIG_SUN_AUXIO
+O_OBJS += auxio.o
+endif
 
 all: kernel.o head.o
 
+ifdef SMP
+
+head.o: head.S
+	$(CC) -D__ASSEMBLY__ $(AFLAGS) -ansi -c $*.S -o $*.o
+
+else
+
 head.o: head.S
 	$(CC) -D__ASSEMBLY__ -ansi -c $*.S -o $*.o
 
+endif
+
 include $(TOPDIR)/Rules.make

arch/sparc/kernel/auxio.c

@@ -31,7 +31,7 @@ auxio_probe(void)
 	/* Map the register both read and write */
 	auxio_register = (unsigned char *) sparc_alloc_io(auxregs[0].phys_addr, 0,
 							  auxregs[0].reg_size,
-							  "auxiliaryIO",
+							  "auxilliaryIO",
 							  auxregs[0].which_io, 0x0);
 	/* Fix the address on sun4m and sun4c. */
 	if((((unsigned long) auxregs[0].phys_addr) & 3) == 3 ||

arch/sparc/kernel/c_mp.c

-/* $Id: c_mp.c,v 1.3 1995/11/25 00:57:50 davem Exp $
- * mp.c:  SMP cpu idling and dispatch on the Sparc.
- *
- * Copyright (C) 1995 David S. Miller
- */
-
-#include <linux/kernel.h>
-
-#include <asm/mp.h>
-#include <asm/mbus.h>
-
-struct sparc_percpu *percpu_table;
-
-void
-sparc_cpu_init(void)
-{
-	/* We now have our per-cpu mappings ok, and we should
-	 * be good to go.
-	 */
-
-	/* Do cache crap here. */
-
-	/* CPU initted, idle the puppy. */
-
-	return;
-}
-
-extern thiscpus_mid;
-
-void
-sparc_cpu_idle(void)
-{
-	int cpuid;
-
-/*	cpuid = get_cpuid(); */
-	cpuid = (thiscpus_mid&(~8));
-/*	printk("SMP: cpu%d has entered idle loop", cpuid); */
-
-	/* Say that we exist and set up. */
-	percpu_table[cpuid].cpuid = cpuid;
-	percpu_table[cpuid].cpu_is_alive = 0x1;
-	percpu_table[cpuid].cpu_is_idling = 0x1;
-
-	/* Let other cpus catch up. */
-	while(linux_smp_still_initting) ;
-	printk("cpu%d done spinning\n", get_cpuid());
-	for(;;) ;  /* Do something useful here... */
-
-	return;
-}	

arch/sparc/kernel/cpu.c

@@ -7,6 +7,7 @@
 #include <linux/kernel.h>
 
 #include <asm/oplib.h>
+#include <asm/page.h>
 #include <asm/head.h>
 #include <asm/psr.h>
 #include <asm/mbus.h>

arch/sparc/kernel/devices.c

@@ -5,6 +5,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/config.h>
 
 #include <asm/page.h>
 #include <asm/oplib.h>
@@ -15,7 +16,7 @@ struct prom_cpuinfo linux_cpus[NCPUS];
 int linux_num_cpus;
 
 extern void cpu_probe(void);
-extern void auxio_probe(void);
+extern void clock_stop_probe(void); /* tadpole.c */
 
 unsigned long
 device_scan(unsigned long mem_start)
@@ -25,13 +26,21 @@ device_scan(unsigned long mem_start)
 	int cpu_nds[NCPUS];  /* One node for each cpu */
 	int cpu_ctr = 0;
 
+#if CONFIG_AP1000
+        printk("Not scanning device list for CPUs\n");
+	linux_num_cpus = 1;
+	return;
+#endif
+
 	prom_getstring(prom_root_node, "device_type", node_str, sizeof(node_str));
+
 	if(strcmp(node_str, "cpu") == 0) {
 		cpu_nds[0] = prom_root_node;
 		cpu_ctr++;
 	} else {
 		int scan;
 		scan = prom_getchild(prom_root_node);
+		prom_printf("root child is %08lx\n", (unsigned long) scan);
 		nd = 0;
 		while((scan = prom_getsibling(scan)) != 0) {
 			prom_getstring(scan, "device_type", node_str, sizeof(node_str));
@@ -40,6 +49,9 @@ device_scan(unsigned long mem_start)
 				linux_cpus[cpu_ctr].prom_node = scan;
 				prom_getproperty(scan, "mid", (char *) &thismid, sizeof(thismid));
 				linux_cpus[cpu_ctr].mid = thismid;
+				prom_printf("Found CPU %d <node=%08lx,mid=%d>\n",
+					    cpu_ctr, (unsigned long) scan,
+					    thismid);
 				cpu_ctr++;
 			}
 		};
@@ -55,7 +67,13 @@ device_scan(unsigned long mem_start)
 	linux_num_cpus = cpu_ctr;
 
 	cpu_probe();
+#if CONFIG_SUN_AUXIO
+	{
+	  extern void auxio_probe(void);
 	  auxio_probe();
+	}
+#endif
+	clock_stop_probe();
 
 	return mem_start;
 }

arch/sparc/kernel/etrap.S

-/* $Id: etrap.S,v 1.16 1996/02/20 07:45:01 davem Exp $
+/* $Id: etrap.S,v 1.17 1996/03/07 06:26:43 davem Exp $
  * etrap.S: Sparc trap window preparation for entry into the
  *          Linux kernel.
  *
@@ -65,7 +65,7 @@ tsetup_7win_patch6:	and	%g2, 0x7f, %g2
 	 * T == Window entered when trap occurred
 	 * S == Window we will need to save if (1<<T) == %wim
 	 *
-	 * Before execution gets here, it must be guaranteed that
+	 * Before execution gets here, it must be guarenteed that
 	 * %l0 contains trap time %psr, %l1 and %l2 contain the
 	 * trap pc and npc, and %l3 contains the trap time %wim.
 	 */
@@ -181,7 +181,7 @@ tsetup_patch3:	and	%g2, 0xff, %g2			! patched on 7win Sparcs
 		 mov	%t_kstack, %sp			! and onto kernel stack
 
 trap_setup_user_spill:
-		/* A spill occurred from either kernel or user mode
+		/* A spill occured from either kernel or user mode
 		 * and there exist some user windows to deal with.
 		 * A mask of the currently valid user windows
 		 * is in %g1 upon entry to here.
@@ -200,7 +200,7 @@ tsetup_patch6:	and	%g2, 0xff, %g2		! patched on 7win Sparcs
 	wr	%g2, 0x0, %wim
 	WRITE_PAUSE
 
-	/* Call MMU-architecture dependent stack checking
+	/* Call MMU-architecture dependant stack checking
 	 * routine.
 	 */
 	.globl	C_LABEL(tsetup_mmu_patchme)

arch/sparc/kernel/idprom.c

@@ -21,7 +21,7 @@ static struct idp_struct idprom_buff;
 
 /* Here is the master table of Sun machines which use some implementation
  * of the Sparc CPU and have a meaningful IDPROM machtype value that we
- * know about.  See asm-sparc/machines.h for empirical constants.
+ * know about.  See asm-sparc/machines.h for imperical constants.
  */
 struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = {
 /* First, Sun4's */

arch/sparc/kernel/ioport.c

-/* $Id: ioport.c,v 1.14 1996/01/03 03:34:41 davem Exp $
+/* $Id: ioport.c,v 1.17 1996/03/23 02:39:13 davem Exp $
  * ioport.c:  Simple io mapping allocator.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
@@ -31,7 +31,7 @@ static long next_free_region = IOBASE_VADDR;
 static long dvma_next_free   = DVMA_VADDR;
 
 /*
- * sparc_alloc_dev:
+ * sparc_alloc_io:
  * Map and allocates an obio device.
  * Implements a simple linear allocator, you can force the function
  * to use your own mapping, but in practice this should not be used.
@@ -61,7 +61,7 @@ void *sparc_alloc_io (void *address, void *virtual, int len, char *name,
 		
 	len += offset;
 	if(((unsigned long) virtual + len) > (IOBASE_VADDR + IOBASE_LEN)) {
-		prom_printf("alloc_io: Mapping outside IOBASE area\n");
+		prom_printf("alloc_io: Mapping ouside IOBASE area\n");
 		prom_halt();
 	}
 	if(check_region ((vaddr | offset), len)) {
@@ -84,11 +84,11 @@ void *sparc_alloc_io (void *address, void *virtual, int len, char *name,
 	return (void *) (base_address | offset);
 }
 
-/* Does DVMA allocations with PAGE_SIZE granularity.  How this basically
+/* Does DVMA allocations with PAGE_SIZE granulatity.  How this basically
  * works is that the ESP chip can do DVMA transfers at ANY address with
- * certain size and boundary restrictions.  But other devices that are
+ * certain size and boundry restrictions.  But other devices that are
  * attached to it and would like to do DVMA have to set things up in
- * a special way, if the DVMA sees a device attached to it transfer data
+ * a special way, if the DVMA see's a device attached to it transfer data
  * at addresses above DVMA_VADDR it will grab them, this way it does not
  * now have to know the peculiarities of where to read the Lance data
  * from. (for example)

arch/sparc/kernel/probe.c

@@ -380,7 +380,7 @@ probe_clock(int fchild)
 	}
 }
 
-/* Probe and map in the Auxiliary I/O register */
+/* Probe and map in the Auxiliaary I/O register */
 void
 probe_auxio(void)
 {
@@ -402,7 +402,7 @@ probe_auxio(void)
 	prom_apply_obio_ranges(auxregs, 0x1);
 	/* Map the register both read and write */
 	sparc_alloc_io(auxregs[0].phys_addr, (void *) AUXIO_VADDR,
-		       auxregs[0].reg_size, "auxiliaryIO", auxregs[0].which_io, 0x0);
+		       auxregs[0].reg_size, "auxilliaryIO", auxregs[0].which_io, 0x0);
 }
 
 extern unsigned long probe_memory(void);

arch/sparc/kernel/process.c

-/*  $Id: process.c,v 1.42 1996/02/20 07:45:08 davem Exp $
+/*  $Id: process.c,v 1.49 1996/04/20 07:37:20 davem Exp $
  *  linux/arch/sparc/kernel/process.c
  *
  *  Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
@@ -8,6 +8,9 @@
  * This file handles the architecture-dependent parts of process handling..
  */
 
+#define __KERNEL_SYSCALLS__
+#include <stdarg.h>
+
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -29,11 +32,14 @@
 #include <asm/delay.h>
 #include <asm/processor.h>
 #include <asm/psr.h>
+#include <asm/system.h>
 
 extern void fpsave(unsigned long *, unsigned long *, void *, unsigned long *);
 
 int active_ds = USER_DS;
 
+#ifndef __SMP__
+
 /*
  * the idle loop on a Sparc... ;)
  */
@@ -47,8 +53,56 @@ asmlinkage int sys_idle(void)
 	for (;;) {
 		schedule();
 	}
+	return 0;
+}
+
+#else
+
+/*
+ * the idle loop on a SparcMultiPenguin...
+ */
+asmlinkage int sys_idle(void)
+{
+	if (current->pid != 0)
+		return -EPERM;
+
+	/* endless idle loop with no priority at all */
+	current->counter = -100;
+	schedule();
+	return 0;
+}
+
+/* This is being executed in task 0 'user space'. */
+int cpu_idle(void *unused)
+{
+	volatile int *spap = &smp_process_available;
+	volatile int cval;
+
+	current->priority = -50;
+	while(1) {
+                if(0==read_smp_counter(spap))
+                	continue;
+		while(*spap == -1)
+			;
+		cli();
+		/* Acquire exclusive access. */
+		while((cval = smp_swap(spap, -1)) == -1)
+			;
+                if (0==cval) {
+			/* ho hum, release it. */
+			smp_process_available = 0;
+			sti();
+                        continue;
+                }
+		/* Something interesting happened, whee... */
+		smp_swap(spap, (cval - 1));
+		sti();
+		idle();
+	}
 }
 
+#endif
+
 extern char saved_command_line[];
 
 void hard_reset_now(void)
@@ -94,12 +148,20 @@ void show_regs(struct pt_regs * regs)
 void exit_thread(void)
 {
 	flush_user_windows();
+#ifndef __SMP__
 	if(last_task_used_math == current) {
+#else
+	if(current->flags & PF_USEDFPU) {
+#endif
 		/* Keep process from leaving FPU in a bogon state. */
 		put_psr(get_psr() | PSR_EF);
 		fpsave(&current->tss.float_regs[0], &current->tss.fsr,
 		       &current->tss.fpqueue[0], &current->tss.fpqdepth);
+#ifndef __SMP__
 		last_task_used_math = NULL;
+#else
+		current->flags &= ~PF_USEDFPU;
+#endif
 	}
 	mmu_exit_hook();
 }
@@ -122,11 +184,20 @@ void flush_thread(void)
 	current->tss.sstk_info.cur_status = 0;
 	current->tss.sstk_info.the_stack = 0;
 
+#ifndef __SMP__
 	if(last_task_used_math == current) {
+#else
+	if(current->flags & PF_USEDFPU) {
+#endif
 		/* Clean the fpu. */
 		put_psr(get_psr() | PSR_EF);
 		fpsave(&current->tss.float_regs[0], &current->tss.fsr,
 		       &current->tss.fpqueue[0], &current->tss.fpqdepth);
+#ifndef __SMP__
+		last_task_used_math = NULL;
+#else
+		current->flags &= ~PF_USEDFPU;
+#endif
 	}
 
 	memset(&current->tss.reg_window[0], 0,
@@ -144,7 +215,7 @@ void flush_thread(void)
  * Parent -->  %o0 == childs  pid, %o1 == 0
  * Child  -->  %o0 == parents pid, %o1 == 1
  *
- * NOTE: We have a separate fork kpsr/kwim because
+ * NOTE: We have a seperate fork kpsr/kwim because
  *       the parent could change these values between
  *       sys_fork invocation and when we reach here
  *       if the parent should sleep while trying to
@@ -160,14 +231,25 @@ void copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 	struct reg_window *old_stack, *new_stack;
 	unsigned long stack_offset;
 
+#ifndef __SMP__
 	if(last_task_used_math == current) {
+#else
+	if(current->flags & PF_USEDFPU) {
+#endif
 		put_psr(get_psr() | PSR_EF);
 		fpsave(&p->tss.float_regs[0], &p->tss.fsr,
 		       &p->tss.fpqueue[0], &p->tss.fpqdepth);
+#ifdef __SMP__
+		current->flags &= ~PF_USEDFPU;
+#endif
 	}
 
 	/* Calculate offset to stack_frame & pt_regs */
-	stack_offset = ((PAGE_SIZE*2) - TRACEREG_SZ);
+	if(sparc_cpu_model == sun4c)
+		stack_offset = ((PAGE_SIZE*3) - TRACEREG_SZ);
+	else
+		stack_offset = ((PAGE_SIZE<<2) - TRACEREG_SZ);
+
 	if(regs->psr & PSR_PS)
 		stack_offset -= REGWIN_SZ;
 	childregs = ((struct pt_regs *) (p->kernel_stack_page + stack_offset));

arch/sparc/kernel/rirq.S

+/* rirq.S: Needed to return from an interrupt on SMP with no
+ *         locks held or released.
+ *
+ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#include <asm/cprefix.h>
+#include <asm/page.h>
+#include <asm/ptrace.h>
+#include <asm/psr.h>
+#include <asm/asi.h>
+#include <asm/smp.h>
+#include <asm/contregs.h>
+#include <asm/winmacro.h>
+#include <asm/asmmacro.h>
+
+#define t_psr     l0
+#define t_pc      l1
+#define t_npc     l2
+#define t_wim     l3
+#define twin_tmp1 l4
+#define twin_tmp2 l5
+#define twin_tmp3 l6
+
+	/* 7 WINDOW SPARC PATCH INSTRUCTIONS */
+	.globl	rirq_7win_patch1, rirq_7win_patch2, rirq_7win_patch3
+	.globl	rirq_7win_patch4, rirq_7win_patch5
+rirq_7win_patch1:	srl	%t_wim, 0x6, %twin_tmp2
+rirq_7win_patch2:	and	%twin_tmp2, 0x7f, %twin_tmp2
+rirq_7win_patch3:	srl	%g1, 7, %g2
+rirq_7win_patch4:	srl	%g2, 6, %g2
+rirq_7win_patch5:	and	%g1, 0x7f, %g1
+	/* END OF PATCH INSTRUCTIONS */
+
+	.globl	ret_irq_entry, rirq_patch1, rirq_patch2
+	.globl	rirq_patch3, rirq_patch4, rirq_patch5
+ret_irq_entry:
+	ld	[%sp + REGWIN_SZ + PT_PSR], %t_psr
+	andcc	%t_psr, PSR_PS, %g0
+	bne	ret_irq_kernel
+	 nop
+
+ret_irq_user:
+	wr	%t_psr, 0x0, %psr
+	WRITE_PAUSE
+
+	LOAD_CURRENT(twin_tmp2, twin_tmp1)
+	ld	[%twin_tmp2 + THREAD_W_SAVED], %twin_tmp1
+	orcc	%g0, %twin_tmp1, %g0
+	be	ret_irq_nobufwins
+	 nop
+
+	/* User has toasty windows, must grab klock. */
+	ENTER_SYSCALL
+
+	wr	%t_psr, PSR_ET, %psr
+	WRITE_PAUSE
+
+	mov	1, %o1
+	call	C_LABEL(try_to_clear_window_buffer)
+	 add	%sp, REGWIN_SZ, %o0
+
+	/* We have klock, so we must return just like a normal trap. */
+	b	ret_trap_entry
+	 nop
+
+ret_irq_nobufwins:
+	/* Load up the user's out registers so we can pull
+	 * a window from the stack, if necessary.
+	 */
+	LOAD_PT_INS(sp)
+
+	/* If there are already live user windows in the
+	 * set we can return from trap safely.
+	 */
+	ld	[%twin_tmp2 + THREAD_UMASK], %twin_tmp1
+	orcc	%g0, %twin_tmp1, %g0
+	bne	ret_irq_userwins_ok
+	 nop
+	
+		/* Calculate new %wim, we have to pull a register
+		 * window from the users stack.
+		 */
+ret_irq_pull_one_window:
+		rd	%wim, %t_wim
+		sll	%t_wim, 0x1, %twin_tmp1
+rirq_patch1:	srl	%t_wim, 0x7, %twin_tmp2
+		or	%twin_tmp2, %twin_tmp1, %twin_tmp2
+rirq_patch2:	and	%twin_tmp2, 0xff, %twin_tmp2
+
+		wr	%twin_tmp2, 0x0, %wim
+		WRITE_PAUSE
+
+				/* Here comes the architecture specific 
+				 * branch to the user stack checking routine
+				 * for return from traps.
+				 */
+				.globl	C_LABEL(rirq_mmu_patchme)
+C_LABEL(rirq_mmu_patchme):	b	C_LABEL(sun4c_reti_stackchk)
+				 andcc	%fp, 0x7, %g0	
+
+ret_irq_userwins_ok:
+	LOAD_PT_PRIV(sp, t_psr, t_pc, t_npc)
+	or	%t_pc, %t_npc, %g2
+	andcc	%g2, 0x3, %g0
+	bne	ret_irq_unaligned_pc
+	 nop
+
+	LOAD_PT_YREG(sp, g1)
+	LOAD_PT_GLOBALS(sp)
+
+	wr	%t_psr, 0x0, %psr
+	WRITE_PAUSE
+
+	jmp	%t_pc
+	rett	%t_npc
+	
+ret_irq_unaligned_pc:
+	add	%sp, REGWIN_SZ, %o0
+	ld	[%sp + REGWIN_SZ + PT_PC], %o1
+	ld	[%sp + REGWIN_SZ + PT_NPC], %o2
+	ld	[%sp + REGWIN_SZ + PT_PSR], %o3
+
+	wr	%t_wim, 0x0, %wim		! or else...
+	WRITE_PAUSE
+
+	/* User has unaligned crap, must grab klock. */
+	ENTER_SYSCALL
+
+	wr	%t_psr, PSR_ET, %psr
+	WRITE_PAUSE
+
+	call	C_LABEL(do_memaccess_unaligned)
+	 nop
+
+	/* We have klock, so we must return just like a normal trap. */
+	b	ret_trap_entry
+	 nop
+
+ret_irq_kernel:
+	wr	%t_psr, 0x0, %psr
+	WRITE_PAUSE
+
+		/* Will the rett land us in the invalid window? */
+		mov	2, %g1
+		sll	%g1, %t_psr, %g1
+rirq_patch3:	srl	%g1, 8, %g2
+		or	%g1, %g2, %g1
+		rd	%wim, %g2
+		andcc	%g2, %g1, %g0
+		be	1f		! Nope, just return from the trap
+		 nop
+
+		/* We have to grab a window before returning. */
+		sll	%g2, 0x1, %g1
+rirq_patch4:	srl	%g2, 7,  %g2
+		or	%g1, %g2, %g1
+rirq_patch5:	and	%g1, 0xff, %g1
+
+	wr	%g1, 0x0, %wim
+	WRITE_PAUSE
+
+	restore	%g0, %g0, %g0
+	LOAD_WINDOW(sp)
+	save	%g0, %g0, %g0
+
+	/* Reload the entire frame in case this is from a
+	 * kernel system call or whatever...
+	 */
+1:
+	LOAD_PT_ALL(sp, t_psr, t_pc, t_npc, g1)
+
+	wr	%t_psr, 0x0, %psr
+	WRITE_PAUSE
+
+	jmp	%t_pc
+	rett	%t_npc
+
+ret_irq_user_stack_is_bolixed:
+	wr	%t_wim, 0x0, %wim
+	WRITE_PAUSE
+
+	/* User has a toasty window, must grab klock. */
+	ENTER_SYSCALL
+
+	wr	%t_psr, PSR_ET, %psr
+	WRITE_PAUSE
+
+	call	C_LABEL(window_ret_fault)
+	 add	%sp, REGWIN_SZ, %o0
+
+	/* We have klock, so we must return just like a normal trap. */
+	b	ret_trap_entry
+	 nop
+
+	.globl	C_LABEL(sun4c_reti_stackchk)
+C_LABEL(sun4c_reti_stackchk):
+	be	1f
+	 and	%fp, 0xfff, %g1		! delay slot
+
+	b	ret_irq_user_stack_is_bolixed
+	 nop
+
+	/* See if we have to check the sanity of one page or two */
+1:
+	add	%g1, 0x38, %g1
+	sra	%fp, 29, %g2
+	add	%g2, 0x1, %g2
+	andncc	%g2, 0x1, %g0
+	be	1f
+	 andncc	%g1, 0xff8, %g0
+
+	/* %sp is in vma hole, yuck */
+	b	ret_irq_user_stack_is_bolixed
+	 nop
+
+1:
+	be	sun4c_reti_onepage	/* Only one page to check */
+	 lda	[%fp] ASI_PTE, %g2
+
+sun4c_reti_twopages:
+	add	%fp, 0x38, %g1
+	sra	%g1, 29, %g2
+	add	%g2, 0x1, %g2
+	andncc	%g2, 0x1, %g0
+	be	1f
+	 lda	[%g1] ASI_PTE, %g2
+
+	/* Second page is in vma hole */
+	b	ret_irq_user_stack_is_bolixed
+	 nop
+
+1:
+	srl	%g2, 29, %g2
+	andcc	%g2, 0x4, %g0
+	bne	sun4c_reti_onepage
+	 lda	[%fp] ASI_PTE, %g2
+
+	/* Second page has bad perms */
+	b	ret_irq_user_stack_is_bolixed
+	 nop
+
+sun4c_reti_onepage:
+	srl	%g2, 29, %g2
+	andcc	%g2, 0x4, %g0
+	bne	1f
+	 nop
+
+	/* A page had bad page permissions, losing... */
+	b	ret_irq_user_stack_is_bolixed
+	 nop
+
+	/* Whee, things are ok, load the window and continue. */
+1:
+	restore	%g0, %g0, %g0
+
+	LOAD_WINDOW(sp)
+
+	save	%g0, %g0, %g0
+	b	ret_irq_userwins_ok
+	 nop
+
+	.globl	C_LABEL(srmmu_reti_stackchk)
+C_LABEL(srmmu_reti_stackchk):
+	bne	ret_irq_user_stack_is_bolixed
+	 sethi	%hi(KERNBASE), %g1
+	cmp	%g1, %fp
+	bleu	ret_irq_user_stack_is_bolixed
+	 mov	AC_M_SFSR, %g1
+	lda	[%g1] ASI_M_MMUREGS, %g0
+
+	lda	[%g0] ASI_M_MMUREGS, %g1
+	or	%g1, 0x2, %g1
+	sta	%g1, [%g0] ASI_M_MMUREGS
+
+	restore	%g0, %g0, %g0
+
+	LOAD_WINDOW(sp)
+
+	save	%g0, %g0, %g0
+
+	andn	%g1, 0x2, %g1
+	sta	%g1, [%g0] ASI_M_MMUREGS
+
+	mov	AC_M_SFAR, %g2
+	lda	[%g2] ASI_M_MMUREGS, %g2
+
+	mov	AC_M_SFSR, %g1
+	lda	[%g1] ASI_M_MMUREGS, %g1
+	andcc	%g1, 0x2, %g0
+	bne	ret_irq_user_stack_is_bolixed
+	 nop
+
+	b	ret_irq_userwins_ok
+	 nop

arch/sparc/kernel/rtrap.S

-/* $Id: rtrap.S,v 1.21 1996/02/20 07:45:11 davem Exp $
+/* $Id: rtrap.S,v 1.27 1996/04/03 02:14:41 davem Exp $
  * rtrap.S: Return from Sparc trap low-level code.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
@@ -9,8 +9,10 @@
 #include <asm/ptrace.h>
 #include <asm/psr.h>
 #include <asm/asi.h>
+#include <asm/smp.h>
 #include <asm/contregs.h>
 #include <asm/winmacro.h>
+#include <asm/asmmacro.h>
 
 #define t_psr     l0
 #define t_pc      l1
@@ -90,19 +92,7 @@ ret_trap_continue:
 	wr	%t_psr, 0x0, %psr
 	WRITE_PAUSE
 
-	/* If not current fpu proc, disable fp-ops */
 	LOAD_CURRENT(twin_tmp2, twin_tmp1)
-	set	C_LABEL(last_task_used_math), %twin_tmp1
-	ld	[%twin_tmp1], %twin_tmp1
-	cmp	%twin_tmp2, %twin_tmp1
-	be	1f
-	 nop
-
-	set	PSR_EF, %twin_tmp1
-	andn	%t_psr, %twin_tmp1, %t_psr
-	st	%t_psr, [%sp + REGWIN_SZ + PT_PSR]
-
-1:
 	ld	[%twin_tmp2 + THREAD_W_SAVED], %twin_tmp1
 	orcc	%g0, %twin_tmp1, %g0
 	be	ret_trap_nobufwins
@@ -163,22 +153,14 @@ ret_trap_userwins_ok:
 	LOAD_PT_YREG(sp, g1)
 	LOAD_PT_GLOBALS(sp)
 
+	LEAVE_SYSCALL
+
 	wr	%t_psr, 0x0, %psr
 	WRITE_PAUSE
 
 	jmp	%t_pc
 	rett	%t_npc
 	
-	/* HyperSparc special nop patching, if we are on a hypersparc
-	 * we nop the top two instructions and the first nop coming
-	 * up to be:
-	 * rd	%iccr, %g0  <-- flush on-chip instruction cache
-	 * jmp	%t_pc
-	 * rett	%t_npc
-	 */
-	nop
-	nop
-
 ret_trap_unaligned_pc:
 	add	%sp, REGWIN_SZ, %o0
 	ld	[%sp + REGWIN_SZ + PT_PC], %o1
@@ -231,6 +213,8 @@ rtrap_patch5:	and	%g1, 0xff, %g1
 1:
 	LOAD_PT_ALL(sp, t_psr, t_pc, t_npc, g1)
 
+	LEAVE_SYSCALL
+
 	wr	%t_psr, 0x0, %psr
 	WRITE_PAUSE
 

arch/sparc/kernel/sclow.S

 /* sclow.S: Low level special syscall handling.
- *          Basically these are cases where we can completely
+ *          Basically these are cases where we can completly
  *          handle the system call without saving any state
  *          because we know that the process will not sleep.
  *

arch/sparc/kernel/setup.c

-/*  $Id: setup.c,v 1.54 1996/02/25 06:49:18 davem Exp $
+/*  $Id: setup.c,v 1.60 1996/04/04 16:30:28 tridge Exp $
  *  linux/arch/sparc/kernel/setup.c
  *
  *  Copyright (C) 1995  David S. Miller (davem@caip.rutgers.edu)
@@ -13,6 +13,7 @@
 #include <linux/ptrace.h>
 #include <linux/malloc.h>
 #include <linux/ldt.h>
+#include <linux/smp.h>
 #include <linux/user.h>
 #include <linux/a.out.h>
 #include <linux/tty.h>
@@ -47,7 +48,6 @@ struct screen_info screen_info = {
 	16                      /* orig-video-points */
 };
 
-char wp_works_ok = 0;
 unsigned int phys_bytes_of_ram, end_of_phys_memory;
 
 unsigned long bios32_init(unsigned long memory_start, unsigned long memory_end)
@@ -55,7 +55,7 @@ unsigned long bios32_init(unsigned long memory_start, unsigned long memory_end)
 	return memory_start;
 }
 
-/* Typing sync at the prom prompt calls the function pointed to by
+/* Typing sync at the prom promptcalls the function pointed to by
  * romvec->pv_synchook which I set to the following function.
  * This should sync all filesystems and return, for now it just
  * prints out pretty messages and returns.
@@ -63,7 +63,9 @@ unsigned long bios32_init(unsigned long memory_start, unsigned long memory_end)
 
 extern unsigned long trapbase;
 extern void breakpoint(void);
+#if CONFIG_SUN_CONSOLE
 extern void console_restore_palette(void);
+#endif
 asmlinkage void sys_sync(void);	/* it's really int */
 
 /* Pretty sick eh? */
@@ -78,10 +80,12 @@ void prom_sync_me(void)
 			     "nop\n\t"
 			     "nop\n\t" : : "r" (&trapbase));
 
+#if CONFIG_SUN_CONSOLE
         console_restore_palette ();
+#endif
 	prom_printf("PROM SYNC COMMAND...\n");
 	show_free_areas();
-	if(current != task[0]) {
+	if(current->pid != 0) {
 		sti();
 		sys_sync();
 		cli();
@@ -104,6 +108,29 @@ unsigned int boot_flags;
 #define BOOTME_SINGLE 0x2
 #define BOOTME_KGDB   0x4
 
+void kernel_enter_debugger(void)
+{
+	if (boot_flags & BOOTME_KGDB) {
+		printk("KGDB: Entered\n");
+		breakpoint();
+	}
+}
+
+int obp_system_intr(void)
+{
+	if (boot_flags & BOOTME_KGDB) {
+		printk("KGDB: system interrupted\n");
+		breakpoint();
+		return 1;
+	}
+	if (boot_flags & BOOTME_DEBUG) {
+		printk("OBP: system interrupted\n");
+		prom_halt();
+		return 1;
+	}
+	return 0;
+}
+
 /* This routine does no error checking, make sure your string is sane
  * before calling this!
  * XXX This is cheese, make generic and better.
@@ -138,11 +165,19 @@ boot_flags_init(char *commands)
 				printk("KGDB: Using serial line /dev/tty%c for "
 				       "session\n", commands[i+8]);
 				boot_flags |= BOOTME_KGDB;
+#if CONFIG_SUN_SERIAL
 				if(commands[i+8]=='a')
 					rs_kgdb_hook(0);
 				else if(commands[i+8]=='b')
 					rs_kgdb_hook(1);
-				else {
+				else
+#endif
+#if CONFIG_AP1000
+                                if(commands[i+8]=='c')
+				  printk("KGDB: ap1000+ debugging\n");
+				else
+#endif
+				{
 					printk("KGDB: whoops bogon tty line "
 					       "requested, disabling session\n");
 					boot_flags &= (~BOOTME_KGDB);
@@ -177,14 +212,21 @@ static struct pt_regs fake_swapper_regs = { 0, 0, 0, 0, { 0, } };
 void setup_arch(char **cmdline_p,
 	unsigned long * memory_start_p, unsigned long * memory_end_p)
 {
-	int total, i, panic_stuff[2];
+	int total, i, panic_stuff[2], packed;
 
+#if CONFIG_AP1000
+        register_console(prom_printf);
+	((char *)(&cputypval))[4] = 'm'; /* ugly :-( */
+#endif
+
+#if 0
 	/* Always reboot on panic, but give 5 seconds to hit L1-A
 	 * and look at debugging info if desired.
 	 */
 	panic_stuff[0] = 1;
 	panic_stuff[1] = 5;
 	panic_setup(0, panic_stuff);
+#endif
 
 	sparc_ttable = (struct tt_entry *) &start;
 
@@ -200,20 +242,25 @@ void setup_arch(char **cmdline_p,
 	if(!strcmp(&cputypval,"sun4e")) { sparc_cpu_model=sun4e; }
 	if(!strcmp(&cputypval,"sun4u")) { sparc_cpu_model=sun4u; }
 	printk("ARCH: ");
+	packed = 0;
 	switch(sparc_cpu_model)
 	  {
 	  case sun4c:
 		  printk("SUN4C\n");
 		  sun4c_probe_vac();
+		  packed = 0;
 		  break;
           case sun4m:
 		  printk("SUN4M\n");
+		  packed = 1;
 		  break;
 	  case sun4d:
 		  printk("SUN4D\n");
+		  packed = 1;
 		  break;
 	  case sun4e:
 		  printk("SUN4E\n");
+		  packed = 0;
 		  break;
 	  case sun4u:
 		  printk("SUN4U\n");
@@ -238,18 +285,18 @@ void setup_arch(char **cmdline_p,
 	load_mmu();
 	total = prom_probe_memory();
 	*memory_start_p = (((unsigned long) &end));
-#if 0
-	prom_printf("Physical Memory: %d bytes (in hex %08lx)\n", (int) total,
-		    (unsigned long) total);
-#endif
 
-	for(i=0; sp_banks[i].num_bytes != 0; i++) {
-#if 0
-		printk("Bank %d:  base 0x%x  bytes %d\n", i,
-			    (unsigned int) sp_banks[i].base_addr, 
-			    (int) sp_banks[i].num_bytes);
-#endif
-		end_of_phys_memory = sp_banks[i].base_addr + sp_banks[i].num_bytes;
+	if(!packed) {
+		for(i=0; sp_banks[i].num_bytes != 0; i++)
+			end_of_phys_memory = sp_banks[i].base_addr +
+				sp_banks[i].num_bytes;
+	} else {
+		unsigned int sum = 0;
+
+		for(i = 0; sp_banks[i].num_bytes != 0; i++)
+			sum += sp_banks[i].num_bytes;
+
+		end_of_phys_memory = sum;
 	}
 
 	prom_setsync(prom_sync_me);
@@ -266,6 +313,9 @@ void setup_arch(char **cmdline_p,
 
 	{
 		extern int serial_console;  /* in console.c, of course */
+#if !CONFIG_SUN_SERIAL
+		serial_console = 0;
+#else
 		int idev = prom_query_input_device();
 		int odev = prom_query_output_device();
 		if (idev == PROMDEV_IKBD && odev == PROMDEV_OSCREEN) {
@@ -279,6 +329,7 @@ void setup_arch(char **cmdline_p,
 			prom_printf("Inconsistent console\n");
 			prom_halt();
 		}
+#endif
 	}
 #if 1
 	/* XXX ROOT_DEV hack for kgdb - davem XXX */
@@ -301,6 +352,8 @@ asmlinkage int sys_ioperm(unsigned long from, unsigned long num, int on)
 extern char *sparc_cpu_type[];
 extern char *sparc_fpu_type[];
 
+extern char *smp_info(void);
+
 int get_cpuinfo(char *buffer)
 {
 	int cpuid=get_cpuid();
@@ -308,23 +361,46 @@ int get_cpuinfo(char *buffer)
 	return sprintf(buffer, "cpu\t\t: %s\n"
             "fpu\t\t: %s\n"
             "promlib\t\t: Version %d Revision %d\n"
-            "wp\t\t: %s\n"
             "type\t\t: %s\n"
             "Elf Support\t: %s\n"   /* I can't remember when I do --ralp */
+#ifndef __SMP__
             "BogoMips\t: %lu.%02lu\n"
-	    "%s",
+#else
+	    "Cpu0Bogo\t: %lu.%02lu\n"
+	    "Cpu1Bogo\t: %lu.%02lu\n"
+	    "Cpu2Bogo\t: %lu.%02lu\n"
+	    "Cpu3Bogo\t: %lu.%02lu\n"
+#endif
+	    "%s"
+#ifdef __SMP__
+	    "%s"
+#endif
+	    ,
             sparc_cpu_type[cpuid],
             sparc_fpu_type[cpuid],
+#if CONFIG_AP1000
+            0, 0,
+#else
             romvec->pv_romvers, prom_rev,
-            wp_works_ok ? "yes" : "no",
+#endif
             &cputypval,
 #if CONFIG_BINFMT_ELF
             "yes",
 #else
             "no",
 #endif
+#ifndef __SMP__
             loops_per_sec/500000, (loops_per_sec/5000) % 100,
+#else
+	    cpu_data[0].udelay_val/500000, (cpu_data[0].udelay_val/5000)%100,
+	    cpu_data[1].udelay_val/500000, (cpu_data[1].udelay_val/5000)%100,
+	    cpu_data[2].udelay_val/500000, (cpu_data[2].udelay_val/5000)%100,
+	    cpu_data[3].udelay_val/500000, (cpu_data[3].udelay_val/5000)%100,
+#endif
 	    mmu_info()
+#ifdef __SMP__
+	    , smp_info()
+#endif
             );
 
 }

arch/sparc/kernel/signal.c

-/*  $Id: signal.c,v 1.28 1995/12/29 21:47:18 davem Exp $
+/*  $Id: signal.c,v 1.31 1996/04/18 01:00:41 davem Exp $
  *  linux/arch/sparc/kernel/signal.c
  *
  *  Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
@@ -58,24 +58,25 @@ asmlinkage void do_sigpause(unsigned int set, struct pt_regs *regs)
 	_sigpause_common(set, regs);
 }
 
-asmlinkage void do_sigsuspend(unsigned int *sigmaskp, struct pt_regs *regs)
+asmlinkage void do_sigsuspend (struct pt_regs *regs)
 {
-	unsigned int set;
+	unsigned long mask;
+	unsigned long set;
 
-	/* Manual does not state what is supposed to happen if
-	 * the sigmask ptr is bogus.  It does state that EINTR
-	 * is the only valid return value and it indicates
-	 * successful signal delivery.  Must investigate.
-	 */
-	if(verify_area(VERIFY_READ, sigmaskp, sizeof(unsigned int))) {
+	set = regs->u_regs [UREG_I0];
+	mask = current->blocked;
+	current->blocked = set & _BLOCKABLE;
 	regs->pc = regs->npc;
 	regs->npc += 4;
-		regs->u_regs[UREG_I0] = EFAULT;
+	while (1) {
+		current->state = TASK_INTERRUPTIBLE;
+		schedule();
+		if (do_signal(mask,regs)){
 			regs->psr |= PSR_C;
+			regs->u_regs [UREG_I0] = EINTR;
 			return;
 		}
-	set = *sigmaskp;
-	_sigpause_common(set, regs);
+	}
 }
 
 asmlinkage void do_sigreturn(struct pt_regs *regs)
@@ -152,10 +153,12 @@ setup_frame(struct sigaction *sa, struct sigcontext_struct **fp,
 	   (((unsigned long) sframep) >= KERNBASE) ||
 	   ((sparc_cpu_model == sun4 || sparc_cpu_model == sun4c) &&
 	    ((unsigned long) sframep < 0xe0000000 && (unsigned long) sframep >= 0x20000000))) {
+#if 0 /* fills up the console logs... */
 		printk("%s [%d]: User has trashed signal stack\n",
 		       current->comm, current->pid);
 		printk("Sigstack ptr %p handler at pc<%08lx> for sig<%d>\n",
 		       sframep, pc, signr);
+#endif
 		/* Don't change signal code and address, so that
 		 * post mortem debuggers can have a look.
 		 */

arch/sparc/kernel/solaris.c

+/* solaris.c: Solaris binary emulation, whee...
+ *
+ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+
+#include <asm/errno.h>
+#include <asm/solerrno.h>
+
+unsigned long solaris_xlatb_rorl[] = {
+	0, SOL_EPERM, SOL_ENOENT, SOL_ESRCH, SOL_EINTR, SOL_EIO,
+	SOL_ENXIO, SOL_E2BIG, SOL_ENOEXEC, SOL_EBADF, SOL_ECHILD,
+	SOL_EAGAIN, SOL_ENOMEM, SOL_EACCES, SOL_EFAULT,
+	SOL_ENOTBLK, SOL_EBUSY, SOL_EEXIST, SOL_EXDEV, SOL_ENODEV,
+	SOL_ENOTDIR, SOL_EISDIR, SOL_EINVAL, SOL_ENFILE, SOL_EMFILE,
+	SOL_ENOTTY, SOL_ETXTBSY, SOL_EFBIG, SOL_ENOSPC, SOL_ESPIPE,
+	SOL_EROFS, SOL_EMLINK, SOL_EPIPE, SOL_EDOM, SOL_ERANGE,
+	SOL_EWOULDBLOCK, SOL_EINPROGRESS, SOL_EALREADY, SOL_ENOTSOCK,
+	SOL_EDESTADDRREQ, SOL_EMSGSIZE, SOL_EPROTOTYPE,	SOL_ENOPROTOOPT,
+	SOL_EPROTONOSUPPORT, SOL_ESOCKTNOSUPPORT, SOL_EOPNOTSUPP,
+	SOL_EPFNOSUPPORT, SOL_EAFNOSUPPORT, SOL_EADDRINUSE,
+	SOL_EADDRNOTAVAIL, SOL_ENETDOWN, SOL_ENETUNREACH, SOL_ENETRESET,
+	SOL_ECONNABORTED, SOL_ECONNRESET, SOL_ENOBUFS, SOL_EISCONN,
+	SOL_ENOTCONN, SOL_ESHUTDOWN, SOL_ETOOMANYREFS, SOL_ETIMEDOUT,
+	SOL_ECONNREFUSED, SOL_ELOOP, SOL_ENAMETOOLONG, SOL_EHOSTDOWN,
+	SOL_EHOSTUNREACH, SOL_ENOTEMPTY, SOL_EUSERS, SOL_EUSERS,
+	SOL_EDQUOT, SOL_ESTALE, SOL_EREMOTE, SOL_ENOSTR, SOL_ETIME,
+	SOL_ENOSR, SOL_ENOMSG, SOL_EBADMSG, SOL_EIDRM, SOL_EDEADLK,
+	SOL_ENOLCK, SOL_ENONET, SOL_EINVAL, SOL_ENOLINK, SOL_EADV,
+	SOL_ESRMNT, SOL_ECOMM, SOL_EPROTO, SOL_EMULTIHOP, SOL_EINVAL,
+	SOL_EREMCHG, SOL_ENOSYS
+};
+
+extern asmlinkage int sys_open(const char *,int,int);
+
+asmlinkage int solaris_open(const char *filename, int flags, int mode)
+{
+	int newflags = flags & 0xf;
+
+	flags &= ~0xf;
+	if(flags & 0x8050)
+		newflags |= FASYNC;
+	if(flags & 0x80)
+		newflags |= O_NONBLOCK;
+	if(flags & 0x100)
+		newflags |= O_CREAT;
+	if(flags & 0x200)
+		newflags |= O_TRUNC;
+	if(flags & 0x400)
+		newflags |= O_EXCL;
+	if(flags & 0x800)
+		newflags |= O_NOCTTY;
+	return sys_open(filename, newflags, mode);
+}
+
+

arch/sparc/kernel/sparc-stub.c

-/* $Id: sparc-stub.c,v 1.10 1996/02/15 09:12:09 davem Exp $
+/* $Id: sparc-stub.c,v 1.15 1996/04/04 12:41:35 davem Exp $
  * sparc-stub.c:  KGDB support for the Linux kernel.
  *
  * Modifications to run under Linux
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
  *
- * This file originally came from the gdb sources, and the
+ * This file origionally came from the gdb sources, and the
  * copyright notices have been retained below.
  */
 
@@ -106,7 +106,7 @@
 #include <asm/system.h>
 #include <asm/vac-ops.h>
 #include <asm/kgdb.h>
-
+#include <asm/pgtable.h>
 /*
  *
  * external low-level support routines
@@ -163,6 +163,10 @@ unsigned long get_sun4csegmap(unsigned long addr)
 	return entry;
 }
 
+static void flush_cache_all_nop(void)
+{
+}
+
 /* Place where we save old trap entries for restoration */
 struct tt_entry kgdb_savettable[256];
 typedef void (*trapfunc_t)(void);
@@ -363,8 +367,12 @@ void
 set_debug_traps(void)
 {
 	struct hard_trap_info *ht;
+	unsigned long flags;
 	unsigned char c;
 
+	save_flags(flags); cli();
+	flush_cache_all = flush_cache_all_nop;
+
 	/* Initialize our copy of the Linux Sparc trap table */
 	eh_init();
 
@@ -386,6 +394,7 @@ set_debug_traps(void)
 	putDebugChar('+'); /* ack it */
 
 	initialized = 1; /* connect! */
+	restore_flags(flags);
 }
 
 /* Convert the SPARC hardware trap type code to a unix signal number. */
@@ -430,7 +439,7 @@ hexToInt(char **ptr, int *intValue)
 }
 
 /*
- * This function does all command processing for interfacing to gdb.  It
+ * This function does all command procesing for interfacing to gdb.  It
  * returns 1 if you should skip the instruction at the trap address, 0
  * otherwise.
  */
@@ -636,18 +645,7 @@ handle_exception (unsigned long *registers)
  * breakpoint, and the icache probably has no way of knowing that a data ref to
  * some location may have changed something that is in the instruction cache.
  */
-			/* Only instruction cache flushing on the sun4c/sun4
-			 * for now.  We assume control flow during the kgdb
-			 * transaction has not left the context in which it
-			 * was entered.
-			 */
-			if((sparc_cpu_model==sun4 || sparc_cpu_model==sun4c) &&
-			   (sun4c_vacinfo.num_bytes && sun4c_vacinfo.on))
-				sun4c_flush_context();
-			/* XXX SRMMU and on-chip v8 instruction cache
-			 * XXX flushing goes here!
-			 */
-
+			flush_cache_all();
 			return;
 
 			/* kill the program */

arch/sparc/kernel/sun4c_irq.c

+/*  sun4c_irq.c
+ *  arch/sparc/kernel/sun4c_irq.c:
+ *
+ *  djhr: Hacked out of irq.c into a CPU dependant version.
+ *
+ *  Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ *  Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx)
+ *  Copyright (C) 1995 Pete A. Zaitcev (zaitcev@ipmce.su)
+ *  Copyright (C) 1996 Dave Redman (djhr@tadpole.co.uk)
+ */
+
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/linkage.h>
+#include <linux/kernel_stat.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/malloc.h>
+
+#include <asm/ptrace.h>
+#include <asm/processor.h>
+#include <asm/system.h>
+#include <asm/psr.h>
+#include <asm/vaddrs.h>
+#include <asm/timer.h>
+#include <asm/openprom.h>
+#include <asm/oplib.h>
+#include <asm/traps.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+/* Pointer to the interrupt enable byte
+ *
+ * Dave Redman (djhr@tadpole.co.uk)
+ * What you may not be aware of is that entry.S requires this variable.
+ *
+ *  --- linux_trap_nmi_sun4c --
+ *
+ * so don't go making it static, like I tried. sigh.
+ */
+unsigned char *interrupt_enable = 0;
+
+static void sun4c_disable_irq(unsigned int irq_nr)
+{
+	unsigned long flags;
+	unsigned char current_mask, new_mask;
+    
+	save_flags(flags); cli();
+	irq_nr &= NR_IRQS;
+	current_mask = *interrupt_enable;
+	switch(irq_nr) {
+	case 1:
+		new_mask = ((current_mask) & (~(SUN4C_INT_E1)));
+		break;
+	case 8:
+		new_mask = ((current_mask) & (~(SUN4C_INT_E8)));
+		break;
+	case 10:
+		new_mask = ((current_mask) & (~(SUN4C_INT_E10)));
+		break;
+	case 14:
+		new_mask = ((current_mask) & (~(SUN4C_INT_E14)));
+		break;
+	default:
+		restore_flags(flags);
+		return;
+	}
+	*interrupt_enable = new_mask;
+	restore_flags(flags);
+}
+
+static void sun4c_enable_irq(unsigned int irq_nr)
+{
+	unsigned long flags;
+	unsigned char current_mask, new_mask;
+    
+	save_flags(flags); cli();
+	irq_nr &= NR_IRQS;
+	current_mask = *interrupt_enable;
+	switch(irq_nr) {
+	case 1:
+		new_mask = ((current_mask) | SUN4C_INT_E1);
+		break;
+	case 8:
+		new_mask = ((current_mask) | SUN4C_INT_E8);
+		break;
+	case 10:
+		new_mask = ((current_mask) | SUN4C_INT_E10);
+		break;
+	case 14:
+		new_mask = ((current_mask) | SUN4C_INT_E14);
+		break;
+	default:
+		restore_flags(flags);
+		return;
+	}
+	*interrupt_enable = new_mask;
+	restore_flags(flags);
+}
+
+#define TIMER_IRQ  	10    /* Also at level 14, but we ignore that one. */
+#define PROFILE_IRQ	14    /* Level14 ticker.. used by OBP for polling */
+
+volatile struct sun4c_timer_info *sun4c_timers;
+
+static void sun4c_clear_clock_irq(void)
+{
+	volatile unsigned int clear_intr;
+	clear_intr = sun4c_timers->timer_limit10;
+}
+
+static void sun4c_clear_profile_irq(void )
+{
+	/* Errm.. not sure how to do this.. */
+}
+
+static void sun4c_load_profile_irq(unsigned int limit)
+{
+	/* Errm.. not sure how to do this.. */
+}
+
+static void sun4c_init_timers(void (*counter_fn)(int, void *, struct pt_regs *))
+{
+	int irq;
+
+	/* Map the Timer chip, this is implemented in hardware inside
+	 * the cache chip on the sun4c.
+	 */
+	sun4c_timers = sparc_alloc_io ((void *) SUN4C_TIMER_PHYSADDR, 0,
+				       sizeof(struct sun4c_timer_info),
+				       "timer", 0x0, 0x0);
+    
+	/* Have the level 10 timer tick at 100HZ.  We don't touch the
+	 * level 14 timer limit since we are letting the prom handle
+	 * them until we have a real console driver so L1-A works.
+	 */
+	sun4c_timers->timer_limit10 = (((1000000/HZ) + 1) << 10);
+
+	irq = request_irq(TIMER_IRQ,
+			  counter_fn,
+			  (SA_INTERRUPT | SA_STATIC_ALLOC),
+			  "timer", NULL);
+	if (irq) {
+		prom_printf("time_init: unable to attach IRQ%d\n",TIMER_IRQ);
+		prom_halt();
+	}
+    
+	claim_ticker14(NULL, PROFILE_IRQ, 0);
+}
+
+static void sun4c_nop(void)
+{
+}
+
+void sun4c_init_IRQ(void)
+{
+	struct linux_prom_registers int_regs[2];
+	int ie_node;
+    
+	ie_node = prom_searchsiblings (prom_getchild(prom_root_node),
+				       "interrupt-enable");
+	if(ie_node == 0)
+		panic("Cannot find /interrupt-enable node");
+
+	/* Depending on the "address" property is bad news... */
+	prom_getproperty(ie_node, "reg", (char *) int_regs, sizeof(int_regs));
+	interrupt_enable = (char *) sparc_alloc_io(int_regs[0].phys_addr, 0,
+						   int_regs[0].reg_size,
+						   "sun4c_interrupts",
+						   int_regs[0].which_io, 0x0);
+	enable_irq = sun4c_enable_irq;
+	disable_irq = sun4c_disable_irq;
+	clear_clock_irq = sun4c_clear_clock_irq;
+	clear_profile_irq = sun4c_clear_profile_irq;
+	load_profile_irq = sun4c_load_profile_irq;
+	init_timers = sun4c_init_timers;
+#ifdef __SMP__
+	set_cpu_int = sun4c_nop;
+	clear_cpu_int = sun4c_nop;
+	set_irq_udt = sun4c_nop;
+#endif
+	*interrupt_enable = (SUN4C_INT_ENABLE);
+	sti();
+}

arch/sparc/kernel/sun4m_irq.c

+/*  sun4m_irq.c
+ *  arch/sparc/kernel/sun4m_irq.c:
+ *
+ *  djhr: Hacked out of irq.c into a CPU dependant version.
+ *
+ *  Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ *  Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx)
+ *  Copyright (C) 1995 Pete A. Zaitcev (zaitcev@ipmce.su)
+ *  Copyright (C) 1996 Dave Redman (djhr@tadpole.co.uk)
+ */
+
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/linkage.h>
+#include <linux/kernel_stat.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/malloc.h>
+
+#include <asm/ptrace.h>
+#include <asm/processor.h>
+#include <asm/system.h>
+#include <asm/psr.h>
+#include <asm/vaddrs.h>
+#include <asm/timer.h>
+#include <asm/openprom.h>
+#include <asm/oplib.h>
+#include <asm/traps.h>
+#include <asm/smp.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+static unsigned long dummy;
+
+extern int linux_num_cpus;
+struct sun4m_intregs *sun4m_interrupts;
+unsigned long *irq_rcvreg = &dummy;
+
+/* These tables only apply for interrupts greater than 15..
+ * 
+ * any intr value below 0x10 is considered to be a soft-int
+ * this may be useful or it may not.. but thats how I've done it.
+ * and it won't clash with what OBP is telling us about devices.
+ *
+ * take an encoded intr value and lookup if its valid
+ * then get the mask bits that match from irq_mask
+ */
+static unsigned char irq_xlate[32] = {
+    /*  0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  a,  b,  c,  d,  e,  f */
+	0,  0,  0,  0,  1,  0,  2,  0,  3,  0,  4,  5,  6,  0,  0,  7,
+	0,  0,  8,  9,  0, 10,  0, 11,  0, 12,  0, 13,  0, 14,  0,  0
+};
+
+static unsigned long irq_mask[] = {
+	0,						  /* illegal index */
+	SUN4M_INT_SCSI,				  	  /*  1 irq 4 */
+	SUN4M_INT_ETHERNET,				  /*  2 irq 6 */
+	SUN4M_INT_VIDEO,				  /*  3 irq 8 */
+	SUN4M_INT_REALTIME,				  /*  4 irq 10 */
+	SUN4M_INT_FLOPPY,				  /*  5 irq 11 */
+	(SUN4M_INT_SERIAL | SUN4M_INT_KBDMS),	  	  /*  6 irq 12 */
+	SUN4M_INT_MODULE_ERR,			  	  /*  7 irq 15 */
+	SUN4M_INT_SBUS(1),				  /*  8 irq 2 */
+	SUN4M_INT_SBUS(2),				  /*  9 irq 3 */
+	SUN4M_INT_SBUS(3),				  /* 10 irq 5 */
+	SUN4M_INT_SBUS(4),				  /* 11 irq 7 */
+	SUN4M_INT_SBUS(5),				  /* 12 irq 9 */
+	SUN4M_INT_SBUS(6),				  /* 13 irq 11 */
+	SUN4M_INT_SBUS(7)				  /* 14 irq 13 */
+};
+
+inline unsigned long sun4m_get_irqmask(unsigned int irq)
+{
+	unsigned long mask;
+    
+	if (irq > 0x20) {
+		/* OBIO/SBUS interrupts */
+		irq &= 0x1f;
+		mask = irq_mask[irq_xlate[irq]];
+		if (!mask)
+			printk("sun4m_get_irqmask: IRQ%d has no valid mask!\n",irq);
+	} else {
+		/* Soft Interrupts will come here
+		 * Currently there is no way to trigger them but I'm sure something
+		 * could be cooked up.
+		 */
+		irq &= 0xf;
+		mask = SUN4M_SOFT_INT(irq);
+	}
+	return mask;
+}
+
+static void sun4m_disable_irq(unsigned int irq_nr)
+{
+	unsigned long mask, flags;
+	int cpu = smp_processor_id();
+
+	mask = sun4m_get_irqmask(irq_nr);
+	save_flags(flags); cli();
+	if (irq_nr > 15)
+		sun4m_interrupts->set = mask;
+	else
+		sun4m_interrupts->cpu_intregs[cpu].set = mask;
+	restore_flags(flags);    
+}
+
+static void sun4m_enable_irq(unsigned int irq_nr)
+{
+	unsigned long mask, flags;
+	int cpu = smp_processor_id();
+
+	/* Dreadful floppy hack. When we use 0x2b instead of
+         * 0x0b the system blows (it starts to whistle!).
+         * So we continue to use 0x0b. Fixme ASAP. --P3
+         */
+        if (irq_nr != 0x0b) {
+		mask = sun4m_get_irqmask(irq_nr);
+		save_flags(flags); cli();
+		if (irq_nr > 15)
+			sun4m_interrupts->clear = mask;
+		else
+			sun4m_interrupts->cpu_intregs[cpu].clear = mask;
+		restore_flags(flags);    
+	} else {
+		save_flags(flags); cli();
+		sun4m_interrupts->clear = SUN4M_INT_FLOPPY;
+		restore_flags(flags);
+	}
+}
+
+void sun4m_send_ipi(int cpu, int level)
+{
+	unsigned long mask;
+
+	mask = sun4m_get_irqmask(level);
+	sun4m_interrupts->cpu_intregs[cpu].set = mask;
+}
+
+void sun4m_clear_ipi(int cpu, int level)
+{
+	unsigned long mask;
+
+	mask = sun4m_get_irqmask(level);
+	sun4m_interrupts->cpu_intregs[cpu].clear = mask;
+}
+
+void sun4m_set_udt(int cpu)
+{
+	sun4m_interrupts->undirected_target = cpu;
+}
+
+#define OBIO_INTR	0x20
+#define TIMER_IRQ  	(OBIO_INTR | 10)
+#define PROFILE_IRQ	(OBIO_INTR | 14)
+
+struct sun4m_timer_regs *sun4m_timers;
+unsigned int lvl14_resolution = (((1000000/HZ) + 1) << 10);
+
+static void sun4m_clear_clock_irq(void)
+{
+	volatile unsigned int clear_intr;
+	clear_intr = sun4m_timers->l10_timer_limit;
+}
+
+static void sun4m_clear_profile_irq(void)
+{
+	volatile unsigned int clear;
+    
+	clear = sun4m_timers->cpu_timers[0].l14_timer_limit;
+}
+
+static void sun4m_load_profile_irq(unsigned int limit)
+{
+	sun4m_timers->cpu_timers[0].l14_timer_limit = limit;
+}
+
+static void sun4m_lvl14_handler(int irq, void *dev_id, struct pt_regs * regs)
+{
+	volatile unsigned int clear;
+    
+	printk("CPU[%d]: TOOK A LEVEL14!\n", smp_processor_id());
+	/* we do nothing with this at present
+	 * this is purely to prevent OBP getting its mucky paws
+	 * in linux.
+	 */
+	clear = sun4m_timers->cpu_timers[0].l14_timer_limit; /* clear interrupt */
+    
+	/* reload with value, this allows on the fly retuning of the level14
+	 * timer
+	 */
+	sun4m_timers->cpu_timers[0].l14_timer_limit = lvl14_resolution;
+}
+
+static void sun4m_init_timers(void (*counter_fn)(int, void *, struct pt_regs *))
+{
+	int reg_count, irq, cpu;
+	struct linux_prom_registers cnt_regs[PROMREG_MAX];
+	int obio_node, cnt_node;
+
+	cnt_node = 0;
+	if((obio_node =
+	    prom_searchsiblings (prom_getchild(prom_root_node), "obio")) == 0 ||
+	   (obio_node = prom_getchild (obio_node)) == 0 ||
+	   (cnt_node = prom_searchsiblings (obio_node, "counter")) == 0) {
+		prom_printf("Cannot find /obio/counter node\n");
+		prom_halt();
+	}
+	reg_count = prom_getproperty(cnt_node, "reg",
+				     (void *) cnt_regs, sizeof(cnt_regs));
+	reg_count = (reg_count/sizeof(struct linux_prom_registers));
+    
+	/* Apply the obio ranges to the timer registers. */
+	prom_apply_obio_ranges(cnt_regs, reg_count);
+    
+	cnt_regs[4].phys_addr = cnt_regs[reg_count-1].phys_addr;
+	cnt_regs[4].reg_size = cnt_regs[reg_count-1].reg_size;
+	cnt_regs[4].which_io = cnt_regs[reg_count-1].which_io;
+	for(obio_node = 1; obio_node < 4; obio_node++) {
+		cnt_regs[obio_node].phys_addr =
+			cnt_regs[obio_node-1].phys_addr + PAGE_SIZE;
+		cnt_regs[obio_node].reg_size = cnt_regs[obio_node-1].reg_size;
+		cnt_regs[obio_node].which_io = cnt_regs[obio_node-1].which_io;
+	}
+    
+	/* Map the per-cpu Counter registers. */
+	sun4m_timers = sparc_alloc_io(cnt_regs[0].phys_addr, 0,
+				      PAGE_SIZE*NCPUS, "counters_percpu",
+				      cnt_regs[0].which_io, 0x0);
+    
+	/* Map the system Counter register. */
+	sparc_alloc_io(cnt_regs[4].phys_addr, 0,
+		       cnt_regs[4].reg_size,
+		       "counters_system",
+		       cnt_regs[4].which_io, 0x0);
+    
+	sun4m_timers->l10_timer_limit =  (((1000000/HZ) + 1) << 10);
+
+	irq = request_irq(TIMER_IRQ,
+			  counter_fn,
+			  (SA_INTERRUPT | SA_STATIC_ALLOC),
+			  "timer", NULL);
+	if (irq) {
+		prom_printf("time_init: unable to attach IRQ%d\n",TIMER_IRQ);
+		prom_halt();
+	}
+    
+	/* Can't cope with multiple CPUS yet so no level14 tick events */
+#if 0
+	if (linux_num_cpus > 1)
+		claim_ticker14(NULL, PROFILE_IRQ, 0);
+	else
+		claim_ticker14(sun4m_lvl14_handler, PROFILE_IRQ, lvl14_resolution);
+#endif
+	if(linux_num_cpus > 1) {
+		for(cpu = 0; cpu < 4; cpu++)
+			sun4m_timers->cpu_timers[cpu].l14_timer_limit = 0;
+		sun4m_interrupts->set = SUN4M_INT_E14;
+	} else {
+		sun4m_timers->cpu_timers[0].l14_timer_limit = 0;
+	}
+}
+
+void sun4m_init_IRQ(void)
+{
+	int ie_node,i;
+	struct linux_prom_registers int_regs[PROMREG_MAX];
+	int num_regs;
+    
+	cli();
+	if((ie_node = prom_searchsiblings(prom_getchild(prom_root_node), "obio")) == 0 ||
+	   (ie_node = prom_getchild (ie_node)) == 0 ||
+	   (ie_node = prom_searchsiblings (ie_node, "interrupt")) == 0) {
+		prom_printf("Cannot find /obio/interrupt node\n");
+		prom_halt();
+	}
+	num_regs = prom_getproperty(ie_node, "reg", (char *) int_regs,
+				    sizeof(int_regs));
+	num_regs = (num_regs/sizeof(struct linux_prom_registers));
+    
+	/* Apply the obio ranges to these registers. */
+	prom_apply_obio_ranges(int_regs, num_regs);
+    
+	int_regs[4].phys_addr = int_regs[num_regs-1].phys_addr;
+	int_regs[4].reg_size = int_regs[num_regs-1].reg_size;
+	int_regs[4].which_io = int_regs[num_regs-1].which_io;
+	for(ie_node = 1; ie_node < 4; ie_node++) {
+		int_regs[ie_node].phys_addr = int_regs[ie_node-1].phys_addr + PAGE_SIZE;
+		int_regs[ie_node].reg_size = int_regs[ie_node-1].reg_size;
+		int_regs[ie_node].which_io = int_regs[ie_node-1].which_io;
+	}
+
+	/* Map the interrupt registers for all possible cpus. */
+	sun4m_interrupts = sparc_alloc_io(int_regs[0].phys_addr, 0,
+					  PAGE_SIZE*NCPUS, "interrupts_percpu",
+					  int_regs[0].which_io, 0x0);
+    
+	/* Map the system interrupt control registers. */
+	sparc_alloc_io(int_regs[4].phys_addr, 0,
+		       int_regs[4].reg_size, "interrupts_system",
+		       int_regs[4].which_io, 0x0);
+    
+	sun4m_interrupts->set = ~SUN4M_INT_MASKALL;
+	for (i=0; i<linux_num_cpus; i++)
+		sun4m_interrupts->cpu_intregs[i].clear = ~0x17fff;
+    
+	if (linux_num_cpus > 1) {
+		/* system wide interrupts go to cpu 0, this should always
+		 * be safe because it is guarenteed to be fitted or OBP doesn't
+		 * come up
+		 *
+		 * Not sure, but writing here on SLAVIO systems may puke
+		 * so I don't do it unless there is more than 1 cpu.
+		 */
+#if 0
+		printk("Warning:"
+		       "sun4m multiple CPU interrupt code requires work\n");
+#endif
+		irq_rcvreg = &sun4m_interrupts->undirected_target;
+		sun4m_interrupts->undirected_target = 0;
+	}
+	enable_irq = sun4m_enable_irq;
+	disable_irq = sun4m_disable_irq;
+	clear_clock_irq = sun4m_clear_clock_irq;
+	clear_profile_irq = sun4m_clear_profile_irq;
+	load_profile_irq = sun4m_load_profile_irq;
+	init_timers = sun4m_init_timers;
+#ifdef __SMP__
+	set_cpu_int = sun4m_send_ipi;
+	clear_cpu_int = sun4m_clear_ipi;
+	set_irq_udt = sun4m_set_udt;
+#endif
+	sti();
+}

arch/sparc/kernel/sunos_asm.S

-/* $Id: sunos_asm.S,v 1.10 1995/12/26 04:09:33 davem Exp $
+/* $Id: sunos_asm.S,v 1.12 1996/04/03 02:14:57 davem Exp $
  * sunos_asm.S: SunOS system calls which must have a low-level
  *              entry point to operate correctly.
  *
@@ -73,8 +73,8 @@ C_LABEL(sunos_execv):
 	call	C_LABEL(sparc_execve)
 	 add	%sp, REGWIN_SZ, %o0
 
-	st	%o0, [%sp + REGWIN_SZ + PT_I0]
-
 	b	C_LABEL(ret_sys_call)
 	 nop
 
+	 
+

arch/sparc/kernel/sunos_ioctl.c

-/* $Id: sunos_ioctl.c,v 1.17 1996/02/10 04:29:20 davem Exp $
+/* $Id: sunos_ioctl.c,v 1.18 1996/04/04 12:41:38 davem Exp $
  * sunos_ioctl.c: The Linux Operating system: SunOS ioctl compatibility.
  * 
  * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx)
@@ -15,6 +15,7 @@
 #include <linux/route.h>
 #include <linux/sockios.h>
 #include <linux/if.h>
+#include <linux/netdevice.h>
 #include <linux/if_arp.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
@@ -52,7 +53,7 @@ asmlinkage int sunos_ioctl (int fd, unsigned long cmd, unsigned long arg)
 		}
 	}
 
-	/* Binary compatibility is good American knowhow fuckin' up. */
+	/* Binary compatability is good American knowhow fuckin' up. */
 	if(cmd == TIOCNOTTY)
 		return sys_setsid();
 

arch/sparc/kernel/sys_bsd.c

-/* sys_bsd.c: {net, open}bsd specific system call handling.
- *
- * Copyright (C) 1995 David S. Miller (davem@caipfs.rutgers.edu)
- */
-#include <linux/kernel.h>
-
-#include <asm/ptrace.h>
-#include <asm/bsderrno.h>
-
-static int errno_trans[] = {
-	0,
-	BSD_EPERM, BSD_ENOENT, BSD_ESRCH, BSD_EINTR, BSD_EIO,
-	BSD_ENXIO, BSD_E2BIG, BSD_ENOEXEC, BSD_EBADF, BSD_ECHILD,
-	BSD_EAGAIN, BSD_ENOMEM, BSD_EACCES, BSD_EFAULT, BSD_ENOTBLK,
-	BSD_EBUSY, BSD_EEXIST, BSD_EXDEV, BSD_ENODEV, BSD_ENOTDIR,
-	BSD_EISDIR, BSD_EINVAL, BSD_ENFILE, BSD_EMFILE, BSD_ENOTTY,
-	BSD_ETXTBSY, BSD_EFBIG, BSD_ENOSPC, BSD_ESPIPE, BSD_EROFS,
-	BSD_EMLINK, BSD_EPIPE, BSD_EDOM, BSD_ERANGE, BSD_EWOULDBLOCK,
-	BSD_EINPROGRESS, BSD_EALREADY, BSD_ENOTSOCK, BSD_EDESTADDRREQ,
-	BSD_EMSGSIZE, BSD_EPROTOTYPE, BSD_ENOPROTOOPT, BSD_EPROTONOSUPPORT,
-	BSD_ESOCKTNOSUPPORT, BSD_EOPNOTSUPP, BSD_EPFNOSUPPORT, BSD_EAFNOSUPPORT,
-	BSD_EADDRINUSE,
-	BSD_EADDRNOTAVAIL, BSD_ENETDOWN, BSD_ENETUNREACH, BSD_ENETRESET,
-	BSD_ECONNABORTED, BSD_ECONNRESET, BSD_ENOBUFS, BSD_EISCONN,
-	BSD_ENOTCONN, BSD_ESHUTDOWN, BSD_ETOOMANYREFS, BSD_ETIMEDOUT,
-	BSD_ECONNREFUSED, BSD_ELOOP, BSD_ENAMETOOLONG, BSD_EHOSTDOWN,
-	BSD_EHOSTUNREACH, BSD_ENOTEMPTY, BSD_EPROCLIM, BSD_EUSERS,
-	BSD_EDQUOT, BSD_ESTALE, BSD_EREMOTE, BSD_ENOSTR, BSD_ETIME,
-	BSD_ENOSR, BSD_ENOMSG, BSD_EBADMSG, BSD_EIDRM, BSD_EDEADLK,
-	BSD_ENOLCK, BSD_ENONET, BSD_ERREMOTE, BSD_ENOLINK, BSD_EADV,
-	BSD_ESRMNT, BSD_ECOMM, BSD_EPROTO, BSD_EMULTIHOP, BSD_EDOTDOT,
-	BSD_EREMCHG, BSD_ENOSYS
-};
-
-asmlinkage int netbsd_nosys(void)
-{
-	struct pt_regs *regs;
-
-	regs = (struct pt_regs *) (current->saved_kernel_stack +
-				   sizeof(struct reg_window));
-	current->tss.sig_address = regs->pc;
-	current->tss.sig_desc = regs->u_regs[UREG_G1];
-	send_sig(SIGSYS, current, 1);
-	printk("Process makes ni_syscall number %d, register dump:\n",
-	       (int) regs->u_regs[UREG_G1]);
-	show_regs(regs);
-	return -BSD_ENOSYS;
-}

drivers/isdn/Config.in

@@ -10,3 +10,4 @@ if [ "$CONFIG_INET" != "n" ]; then
 fi
 dep_tristate 'Teles/NICCY1016PC/Creatix support' CONFIG_ISDN_DRV_TELES $CONFIG_ISDN
 dep_tristate 'ICN B1 and B2 support' CONFIG_ISDN_DRV_ICN $CONFIG_ISDN
+dep_tristate 'PCBIT-D support' CONFIG_ISDN_DRV_PCBIT $CONFIG_ISDN