Merge branch 'upstream'

Documentation/connector/connector.txt

@@ -131,3 +131,47 @@ Netlink itself is not reliable protocol, that means that messages can
 be lost due to memory pressure or process' receiving queue overflowed,
 so caller is warned must be prepared. That is why struct cn_msg [main
 connector's message header] contains u32 seq and u32 ack fields.
+
+/*****************************************/
+Userspace usage.
+/*****************************************/
+2.6.14 has a new netlink socket implementation, which by default does not
+allow to send data to netlink groups other than 1.
+So, if to use netlink socket (for example using connector) 
+with different group number userspace application must subscribe to 
+that group. It can be achieved by following pseudocode:
+
+s = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
+
+l_local.nl_family = AF_NETLINK;
+l_local.nl_groups = 12345;
+l_local.nl_pid = 0;
+
+if (bind(s, (struct sockaddr *)&l_local, sizeof(struct sockaddr_nl)) == -1) {
+	perror("bind");
+	close(s);
+	return -1;
+}
+
+{
+	int on = l_local.nl_groups;
+	setsockopt(s, 270, 1, &on, sizeof(on));
+}
+
+Where 270 above is SOL_NETLINK, and 1 is a NETLINK_ADD_MEMBERSHIP socket
+option. To drop multicast subscription one should call above socket option
+with NETLINK_DROP_MEMBERSHIP parameter which is defined as 0.
+
+2.6.14 netlink code only allows to select a group which is less or equal to
+the maximum group number, which is used at netlink_kernel_create() time.
+In case of connector it is CN_NETLINK_USERS + 0xf, so if you want to use
+group number 12345, you must increment CN_NETLINK_USERS to that number.
+Additional 0xf numbers are allocated to be used by non-in-kernel users.
+
+Due to this limitation, group 0xffffffff does not work now, so one can
+not use add/remove connector's group notifications, but as far as I know, 
+only cn_test.c test module used it.
+
+Some work in netlink area is still being done, so things can be changed in
+2.6.15 timeframe, if it will happen, documentation will be updated for that
+kernel.

Documentation/dell_rbu.txt

@@ -35,6 +35,7 @@ The driver load creates the following directories under the /sys file system.
 /sys/class/firmware/dell_rbu/data
 /sys/devices/platform/dell_rbu/image_type
 /sys/devices/platform/dell_rbu/data
+/sys/devices/platform/dell_rbu/packet_size
 
 The driver supports two types of update mechanism; monolithic and packetized.
 These update mechanism depends upon the BIOS currently running on the system.
@@ -47,8 +48,26 @@ By default the driver uses monolithic memory for the update type. This can be
 changed to packets during the driver load time by specifying the load
 parameter image_type=packet.  This can also be changed later as below
 echo packet > /sys/devices/platform/dell_rbu/image_type
-Also echoing either mono ,packet or init in to image_type will free up the
+
-memory allocated by the driver.
+In packet update mode the packet size has to be given before any packets can
+be downloaded. It is done as below
+echo XXXX > /sys/devices/platform/dell_rbu/packet_size
+In the packet update mechanism, the user neesd to create a new file having
+packets of data arranged back to back. It can be done as follows
+The user creates packets header, gets the chunk of the BIOS image and
+placs it next to the packetheader; now, the packetheader + BIOS image chunk
+added to geather should match the specified packet_size. This makes one
+packet, the user needs to create more such packets out of the entire BIOS
+image file and then arrange all these packets back to back in to one single
+file.
+This file is then copied to /sys/class/firmware/dell_rbu/data.
+Once this file gets to the driver, the driver extracts packet_size data from
+the file and spreads it accross the physical memory in contiguous packet_sized
+space.
+This method makes sure that all the packets get to the driver in a single operation.
+
+In monolithic update the user simply get the BIOS image (.hdr file) and copies
+to the data file as is without any change to the BIOS image itself.
 
 Do the steps below to download the BIOS image.
 1) echo 1 > /sys/class/firmware/dell_rbu/loading
@@ -58,7 +77,10 @@ Do the steps below to download the BIOS image.
 The /sys/class/firmware/dell_rbu/ entries will remain till the following is
 done.
 echo -1 > /sys/class/firmware/dell_rbu/loading.
-Until this step is completed the drivr cannot be unloaded.
+Until this step is completed the driver cannot be unloaded.
+Also echoing either mono ,packet or init in to image_type will free up the
+memory allocated by the driver.
+
 If an user by accident executes steps 1 and 3 above without executing step 2;
 it will make the /sys/class/firmware/dell_rbu/ entries to disappear.
 The entries can be recreated by doing the following
@@ -66,15 +88,11 @@ echo init > /sys/devices/platform/dell_rbu/image_type
 NOTE: echoing init in image_type does not change it original value.
 
 Also the driver provides /sys/devices/platform/dell_rbu/data readonly file to
-read back the image downloaded. This is useful in case of packet update
+read back the image downloaded.
-mechanism where the above steps 1,2,3 will repeated for every packet.
-By reading the /sys/devices/platform/dell_rbu/data file all packet data
-downloaded can be verified in a single file.
-The packets are arranged in this file one after the other in a FIFO order.
 
 NOTE:
-This driver requires a patch for firmware_class.c which has the addition
+This driver requires a patch for firmware_class.c which has the modified
-of request_firmware_nowait_nohotplug function to wortk
+request_firmware_nowait function.
 Also after updating the BIOS image an user mdoe application neeeds to execute
 code which message the BIOS update request to the BIOS. So on the next reboot
 the BIOS knows about the new image downloaded and it updates it self.

Documentation/keys-request-key.txt

@@ -0,0 +1,161 @@
+			      ===================
+			      KEY REQUEST SERVICE
+			      ===================
+
+The key request service is part of the key retention service (refer to
+Documentation/keys.txt). This document explains more fully how that the
+requesting algorithm works.
+
+The process starts by either the kernel requesting a service by calling
+request_key():
+
+	struct key *request_key(const struct key_type *type,
+				const char *description,
+				const char *callout_string);
+
+Or by userspace invoking the request_key system call:
+
+	key_serial_t request_key(const char *type,
+				 const char *description,
+				 const char *callout_info,
+				 key_serial_t dest_keyring);
+
+The main difference between the two access points is that the in-kernel
+interface does not need to link the key to a keyring to prevent it from being
+immediately destroyed. The kernel interface returns a pointer directly to the
+key, and it's up to the caller to destroy the key.
+
+The userspace interface links the key to a keyring associated with the process
+to prevent the key from going away, and returns the serial number of the key to
+the caller.
+
+
+===========
+THE PROCESS
+===========
+
+A request proceeds in the following manner:
+
+ (1) Process A calls request_key() [the userspace syscall calls the kernel
+     interface].
+
+ (2) request_key() searches the process's subscribed keyrings to see if there's
+     a suitable key there. If there is, it returns the key. If there isn't, and
+     callout_info is not set, an error is returned. Otherwise the process
+     proceeds to the next step.
+
+ (3) request_key() sees that A doesn't have the desired key yet, so it creates
+     two things:
+
+     (a) An uninstantiated key U of requested type and description.
+
+     (b) An authorisation key V that refers to key U and notes that process A
+     	 is the context in which key U should be instantiated and secured, and
+     	 from which associated key requests may be satisfied.
+
+ (4) request_key() then forks and executes /sbin/request-key with a new session
+     keyring that contains a link to auth key V.
+
+ (5) /sbin/request-key execs an appropriate program to perform the actual
+     instantiation.
+
+ (6) The program may want to access another key from A's context (say a
+     Kerberos TGT key). It just requests the appropriate key, and the keyring
+     search notes that the session keyring has auth key V in its bottom level.
+
+     This will permit it to then search the keyrings of process A with the
+     UID, GID, groups and security info of process A as if it was process A,
+     and come up with key W.
+
+ (7) The program then does what it must to get the data with which to
+     instantiate key U, using key W as a reference (perhaps it contacts a
+     Kerberos server using the TGT) and then instantiates key U.
+
+ (8) Upon instantiating key U, auth key V is automatically revoked so that it
+     may not be used again.
+
+ (9) The program then exits 0 and request_key() deletes key V and returns key
+     U to the caller.
+
+This also extends further. If key W (step 5 above) didn't exist, key W would be
+created uninstantiated, another auth key (X) would be created [as per step 3]
+and another copy of /sbin/request-key spawned [as per step 4]; but the context
+specified by auth key X will still be process A, as it was in auth key V.
+
+This is because process A's keyrings can't simply be attached to
+/sbin/request-key at the appropriate places because (a) execve will discard two
+of them, and (b) it requires the same UID/GID/Groups all the way through.
+
+
+======================
+NEGATIVE INSTANTIATION
+======================
+
+Rather than instantiating a key, it is possible for the possessor of an
+authorisation key to negatively instantiate a key that's under construction.
+This is a short duration placeholder that causes any attempt at re-requesting
+the key whilst it exists to fail with error ENOKEY.
+
+This is provided to prevent excessive repeated spawning of /sbin/request-key
+processes for a key that will never be obtainable.
+
+Should the /sbin/request-key process exit anything other than 0 or die on a
+signal, the key under construction will be automatically negatively
+instantiated for a short amount of time.
+
+
+====================
+THE SEARCH ALGORITHM
+====================
+
+A search of any particular keyring proceeds in the following fashion:
+
+ (1) When the key management code searches for a key (keyring_search_aux) it
+     firstly calls key_permission(SEARCH) on the keyring it's starting with,
+     if this denies permission, it doesn't search further.
+
+ (2) It considers all the non-keyring keys within that keyring and, if any key
+     matches the criteria specified, calls key_permission(SEARCH) on it to see
+     if the key is allowed to be found. If it is, that key is returned; if
+     not, the search continues, and the error code is retained if of higher
+     priority than the one currently set.
+
+ (3) It then considers all the keyring-type keys in the keyring it's currently
+     searching. It calls key_permission(SEARCH) on each keyring, and if this
+     grants permission, it recurses, executing steps (2) and (3) on that
+     keyring.
+
+The process stops immediately a valid key is found with permission granted to
+use it. Any error from a previous match attempt is discarded and the key is
+returned.
+
+When search_process_keyrings() is invoked, it performs the following searches
+until one succeeds:
+
+ (1) If extant, the process's thread keyring is searched.
+
+ (2) If extant, the process's process keyring is searched.
+
+ (3) The process's session keyring is searched.
+
+ (4) If the process has a request_key() authorisation key in its session
+     keyring then:
+
+     (a) If extant, the calling process's thread keyring is searched.
+
+     (b) If extant, the calling process's process keyring is searched.
+
+     (c) The calling process's session keyring is searched.
+
+The moment one succeeds, all pending errors are discarded and the found key is
+returned.
+
+Only if all these fail does the whole thing fail with the highest priority
+error. Note that several errors may have come from LSM.
+
+The error priority is:
+
+	EKEYREVOKED > EKEYEXPIRED > ENOKEY
+
+EACCES/EPERM are only returned on a direct search of a specific keyring where
+the basal keyring does not grant Search permission.

Documentation/keys.txt

@@ -361,6 +361,8 @@ The main syscalls are:
      /sbin/request-key will be invoked in an attempt to obtain a key. The
      callout_info string will be passed as an argument to the program.
 
+     See also Documentation/keys-request-key.txt.
+
 
 The keyctl syscall functions are:
 
@@ -533,8 +535,8 @@ The keyctl syscall functions are:
 
  (*) Read the payload data from a key:
 
-	key_serial_t keyctl(KEYCTL_READ, key_serial_t keyring, char *buffer,
+	long keyctl(KEYCTL_READ, key_serial_t keyring, char *buffer,
-			    size_t buflen);
+		    size_t buflen);
 
      This function attempts to read the payload data from the specified key
      into the buffer. The process must have read permission on the key to
@@ -555,9 +557,9 @@ The keyctl syscall functions are:
 
  (*) Instantiate a partially constructed key.
 
-	key_serial_t keyctl(KEYCTL_INSTANTIATE, key_serial_t key,
+	long keyctl(KEYCTL_INSTANTIATE, key_serial_t key,
-			    const void *payload, size_t plen,
+		    const void *payload, size_t plen,
-			    key_serial_t keyring);
+		    key_serial_t keyring);
 
      If the kernel calls back to userspace to complete the instantiation of a
      key, userspace should use this call to supply data for the key before the
@@ -576,8 +578,8 @@ The keyctl syscall functions are:
 
  (*) Negatively instantiate a partially constructed key.
 
-	key_serial_t keyctl(KEYCTL_NEGATE, key_serial_t key,
+	long keyctl(KEYCTL_NEGATE, key_serial_t key,
-			    unsigned timeout, key_serial_t keyring);
+		    unsigned timeout, key_serial_t keyring);
 
      If the kernel calls back to userspace to complete the instantiation of a
      key, userspace should use this call mark the key as negative before the
@@ -688,6 +690,8 @@ payload contents" for more information.
     If successful, the key will have been attached to the default keyring for
     implicitly obtained request-key keys, as set by KEYCTL_SET_REQKEY_KEYRING.
 
+    See also Documentation/keys-request-key.txt.
+
 
 (*) When it is no longer required, the key should be released using:
 

MAINTAINERS

@@ -1618,6 +1618,13 @@ M:	vandrove@vc.cvut.cz
 L:	linux-fbdev-devel@lists.sourceforge.net
 S:	Maintained
 
+MEGARAID SCSI DRIVERS
+P:     Neela Syam Kolli
+M:     Neela.Kolli@engenio.com
+S:     linux-scsi@vger.kernel.org
+W:     http://megaraid.lsilogic.com
+S:     Maintained
+
 MEMORY TECHNOLOGY DEVICES
 P:	David Woodhouse
 M:	dwmw2@infradead.org

Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 14
-EXTRAVERSION =-rc3
+EXTRAVERSION =-rc4
 NAME=Affluent Albatross
 
 # *DOCUMENTATION*
@@ -660,8 +660,10 @@ quiet_cmd_sysmap = SYSMAP
 # Link of vmlinux
 # If CONFIG_KALLSYMS is set .version is already updated
 # Generate System.map and verify that the content is consistent
-
+# Use + in front of the vmlinux_version rule to silent warning with make -j2
+# First command is ':' to allow us to use + in front of the rule
 define rule_vmlinux__
+	:
 	$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))
 
 	$(call cmd,vmlinux__)

arch/arm/Makefile

@@ -53,7 +53,7 @@ tune-$(CONFIG_CPU_ARM926T)	:=-mtune=arm9tdmi
 tune-$(CONFIG_CPU_SA110)	:=-mtune=strongarm110
 tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100
 tune-$(CONFIG_CPU_XSCALE)	:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
-tune-$(CONFIG_CPU_V6)		:=-mtune=strongarm
+tune-$(CONFIG_CPU_V6)		:=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
 
 # Need -Uarm for gcc < 3.x
 CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)

arch/arm/common/scoop.c

@@ -26,6 +26,8 @@ struct scoop_pcmcia_dev *scoop_devs;
 struct  scoop_dev {
 	void  *base;
 	spinlock_t scoop_lock;
+	unsigned short suspend_clr;
+	unsigned short suspend_set;
 	u32 scoop_gpwr;
 };
 
@@ -90,14 +92,24 @@ EXPORT_SYMBOL(reset_scoop);
 EXPORT_SYMBOL(read_scoop_reg);
 EXPORT_SYMBOL(write_scoop_reg);
 
+static void check_scoop_reg(struct scoop_dev *sdev)
+{
+	unsigned short mcr;
+
+	mcr = SCOOP_REG(sdev->base, SCOOP_MCR);
+	if ((mcr & 0x100) == 0)
+		SCOOP_REG(sdev->base, SCOOP_MCR) = 0x0101;
+}
+
 #ifdef CONFIG_PM
 static int scoop_suspend(struct device *dev, pm_message_t state, uint32_t level)
 {
 	if (level == SUSPEND_POWER_DOWN) {
 		struct scoop_dev *sdev = dev_get_drvdata(dev);
 
-		sdev->scoop_gpwr = SCOOP_REG(sdev->base,SCOOP_GPWR);
+		check_scoop_reg(sdev);
-		SCOOP_REG(sdev->base,SCOOP_GPWR) = 0;
+  		sdev->scoop_gpwr = SCOOP_REG(sdev->base, SCOOP_GPWR);
+		SCOOP_REG(sdev->base, SCOOP_GPWR) = (sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set;
 	}
 	return 0;
 }
@@ -107,6 +119,7 @@ static int scoop_resume(struct device *dev, uint32_t level)
 	if (level == RESUME_POWER_ON) {
 		struct scoop_dev *sdev = dev_get_drvdata(dev);
 
+		check_scoop_reg(sdev);
 		SCOOP_REG(sdev->base,SCOOP_GPWR) = sdev->scoop_gpwr;
 	}
 	return 0;
@@ -151,6 +164,9 @@ int __init scoop_probe(struct device *dev)
 	SCOOP_REG(devptr->base, SCOOP_GPCR) = inf->io_dir & 0xffff;
 	SCOOP_REG(devptr->base, SCOOP_GPWR) = inf->io_out & 0xffff;
 
+	devptr->suspend_clr = inf->suspend_clr;
+	devptr->suspend_set = inf->suspend_set;
+
 	return 0;
 }
 

arch/arm/configs/collie_defconfig

@@ -0,0 +1,888 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.14-rc3
+# Sun Oct  9 16:55:14 2005
+#
+CONFIG_ARM=y
+CONFIG_MMU=y
+CONFIG_UID16=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+
+#
+# Code maturity level options
+#
+CONFIG_EXPERIMENTAL=y
+# CONFIG_CLEAN_COMPILE is not set
+CONFIG_BROKEN=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+# CONFIG_POSIX_MQUEUE is not set
+CONFIG_BSD_PROCESS_ACCT=y
+# CONFIG_BSD_PROCESS_ACCT_V3 is not set
+CONFIG_SYSCTL=y
+# CONFIG_AUDIT is not set
+CONFIG_HOTPLUG=y
+CONFIG_KOBJECT_UEVENT=y
+# CONFIG_IKCONFIG is not set
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_EMBEDDED=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_EPOLL=y
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SHMEM=y
+CONFIG_CC_ALIGN_FUNCTIONS=0
+CONFIG_CC_ALIGN_LABELS=0
+CONFIG_CC_ALIGN_LOOPS=0
+CONFIG_CC_ALIGN_JUMPS=0
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+
+#
+# Loadable module support
+#
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_OBSOLETE_MODPARM=y
+CONFIG_MODVERSIONS=y
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_KMOD=y
+
+#
+# System Type
+#
+# CONFIG_ARCH_CLPS7500 is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_CO285 is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_CAMELOT is not set
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_IOP3XX is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_L7200 is not set
+# CONFIG_ARCH_PXA is not set
+# CONFIG_ARCH_RPC is not set
+CONFIG_ARCH_SA1100=y
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_OMAP is not set
+# CONFIG_ARCH_VERSATILE is not set
+# CONFIG_ARCH_IMX is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_AAEC2000 is not set
+
+#
+# SA11x0 Implementations
+#
+# CONFIG_SA1100_ASSABET is not set
+# CONFIG_SA1100_CERF is not set
+CONFIG_SA1100_COLLIE=y
+# CONFIG_SA1100_H3100 is not set
+# CONFIG_SA1100_H3600 is not set
+# CONFIG_SA1100_H3800 is not set
+# CONFIG_SA1100_BADGE4 is not set
+# CONFIG_SA1100_JORNADA720 is not set
+# CONFIG_SA1100_HACKKIT is not set
+# CONFIG_SA1100_LART is not set
+# CONFIG_SA1100_PLEB is not set
+# CONFIG_SA1100_SHANNON is not set
+# CONFIG_SA1100_SIMPAD is not set
+# CONFIG_SA1100_SSP is not set
+
+#
+# Processor Type
+#
+CONFIG_CPU_32=y
+CONFIG_CPU_SA1100=y
+CONFIG_CPU_32v4=y
+CONFIG_CPU_ABRT_EV4=y
+CONFIG_CPU_CACHE_V4WB=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_TLB_V4WB=y
+
+#
+# Processor Features
+#
+CONFIG_SHARP_LOCOMO=y
+CONFIG_SHARP_PARAM=y
+CONFIG_SHARP_SCOOP=y
+
+#
+# Bus support
+#
+CONFIG_ISA=y
+CONFIG_ISA_DMA_API=y
+
+#
+# PCCARD (PCMCIA/CardBus) support
+#
+# CONFIG_PCCARD is not set
+
+#
+# Kernel Features
+#
+# CONFIG_SMP is not set
+CONFIG_PREEMPT=y
+# CONFIG_NO_IDLE_HZ is not set
+CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
+CONFIG_SELECT_MEMORY_MODEL=y
+# CONFIG_FLATMEM_MANUAL is not set
+CONFIG_DISCONTIGMEM_MANUAL=y
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_DISCONTIGMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+CONFIG_NEED_MULTIPLE_NODES=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_LEDS is not set
+CONFIG_ALIGNMENT_TRAP=y
+
+#
+# Boot options
+#
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_CMDLINE="console=ttyS0,115200n8 console=tty1 noinitrd root=/dev/mtdblock2 rootfstype=jffs2   debug"
+# CONFIG_XIP_KERNEL is not set
+
+#
+# CPU Frequency scaling
+#
+# CONFIG_CPU_FREQ is not set
+
+#
+# Floating point emulation
+#
+
+#
+# At least one emulation must be selected
+#
+CONFIG_FPE_NWFPE=y
+# CONFIG_FPE_NWFPE_XP is not set
+# CONFIG_FPE_FASTFPE is not set
+
+#
+# Userspace binary formats
+#
+CONFIG_BINFMT_ELF=y
+CONFIG_BINFMT_AOUT=m
+CONFIG_BINFMT_MISC=m
+# CONFIG_ARTHUR is not set
+
+#
+# Power management options
+#
+CONFIG_PM=y
+CONFIG_APM=y
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+CONFIG_SYN_COOKIES=y
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_BIC=y
+# CONFIG_IPV6 is not set
+# CONFIG_NETFILTER is not set
+
+#
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
+#
+# SCTP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_SCTP is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_NET_DIVERT is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+# CONFIG_NET_CLS_ROUTE is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_IEEE80211 is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+CONFIG_FW_LOADER=m
+# CONFIG_DEBUG_DRIVER is not set
+
+#
+# Memory Technology Devices (MTD)
+#
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_CMDLINE_PARTS is not set
+# CONFIG_MTD_AFS_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+CONFIG_MTD_OBSOLETE_CHIPS=y
+# CONFIG_MTD_AMDSTD is not set
+CONFIG_MTD_SHARP=y
+# CONFIG_MTD_JEDEC is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLKMTD is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+
+#
+# NAND Flash Device Drivers
+#
+# CONFIG_MTD_NAND is not set
+
+#
+# Parallel port support
+#
+# CONFIG_PARPORT is not set
+
+#
+# Plug and Play support
+#
+# CONFIG_PNP is not set
+
+#
+# Block devices
+#
+# CONFIG_BLK_DEV_XD is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=y
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=1024
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_CDROM_PKTCDVD is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+CONFIG_ATA_OVER_ETH=m
+
+#
+# ATA/ATAPI/MFM/RLL support
+#
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+
+#
+# Multi-device support (RAID and LVM)
+#
+# CONFIG_MD is not set
+
+#
+# Fusion MPT device support
+#
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+# CONFIG_IEEE1394 is not set
+
+#
+# I2O device support
+#
+
+#
+# Network device support
+#
+# CONFIG_NETDEVICES is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+
+#
+# ISDN subsystem
+#
+# CONFIG_ISDN is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+
+#
+# Userland interfaces
+#
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_JOYDEV is not set
+CONFIG_INPUT_TSDEV=y
+CONFIG_INPUT_TSDEV_SCREEN_X=240
+CONFIG_INPUT_TSDEV_SCREEN_Y=320
+CONFIG_INPUT_EVDEV=y
+CONFIG_INPUT_EVBUG=y
+
+#
+# Input Device Drivers
+#
+CONFIG_INPUT_KEYBOARD=y
+# CONFIG_KEYBOARD_ATKBD is not set
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+CONFIG_KEYBOARD_LOCOMO=y
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+CONFIG_SERIO=y
+# CONFIG_SERIO_SERPORT is not set
+# CONFIG_SERIO_LIBPS2 is not set
+# CONFIG_SERIO_RAW is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_SA1100=y
+CONFIG_SERIAL_SA1100_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+
+#
+# IPMI
+#
+# CONFIG_IPMI_HANDLER is not set
+
+#
+# Watchdog Cards
+#
+# CONFIG_WATCHDOG is not set
+# CONFIG_NVRAM is not set
+# CONFIG_RTC is not set
+# CONFIG_DTLK is not set
+# CONFIG_R3964 is not set
+
+#
+# Ftape, the floppy tape device driver
+#
+# CONFIG_RAW_DRIVER is not set
+
+#
+# TPM devices
+#
+
+#
+# I2C support
+#
+CONFIG_I2C=m
+# CONFIG_I2C_CHARDEV is not set
+
+#
+# I2C Algorithms
+#
+CONFIG_I2C_ALGOBIT=m
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+# CONFIG_I2C_ELEKTOR is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_PCA_ISA is not set
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_RTC8564 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
+
+#
+# Hardware Monitoring support
+#
+CONFIG_HWMON=y
+# CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_ADM1021 is not set
+# CONFIG_SENSORS_ADM1025 is not set
+# CONFIG_SENSORS_ADM1026 is not set
+# CONFIG_SENSORS_ADM1031 is not set
+# CONFIG_SENSORS_ADM9240 is not set
+# CONFIG_SENSORS_ASB100 is not set
+# CONFIG_SENSORS_ATXP1 is not set
+# CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_FSCHER is not set
+# CONFIG_SENSORS_FSCPOS is not set
+# CONFIG_SENSORS_GL518SM is not set
+# CONFIG_SENSORS_GL520SM is not set
+# CONFIG_SENSORS_IT87 is not set
+# CONFIG_SENSORS_LM63 is not set
+# CONFIG_SENSORS_LM75 is not set
+# CONFIG_SENSORS_LM77 is not set
+# CONFIG_SENSORS_LM78 is not set
+# CONFIG_SENSORS_LM80 is not set
+# CONFIG_SENSORS_LM83 is not set
+# CONFIG_SENSORS_LM85 is not set
+# CONFIG_SENSORS_LM87 is not set
+# CONFIG_SENSORS_LM90 is not set
+# CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_MAX1619 is not set
+# CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_W83781D is not set
+# CONFIG_SENSORS_W83792D is not set
+# CONFIG_SENSORS_W83L785TS is not set
+# CONFIG_SENSORS_W83627HF is not set
+# CONFIG_SENSORS_W83627EHF is not set
+# CONFIG_HWMON_DEBUG_CHIP is not set
+
+#
+# Misc devices
+#
+
+#
+# Multimedia Capabilities Port drivers
+#
+# CONFIG_MCP_SA11X0 is not set
+
+#
+# Multimedia devices
+#
+CONFIG_VIDEO_DEV=m
+
+#
+# Video For Linux
+#
+
+#
+# Video Adapters
+#
+# CONFIG_VIDEO_PMS is not set
+# CONFIG_VIDEO_CPIA is not set
+# CONFIG_VIDEO_SAA5246A is not set
+# CONFIG_VIDEO_SAA5249 is not set
+# CONFIG_TUNER_3036 is not set
+# CONFIG_VIDEO_OVCAMCHIP is not set
+
+#
+# Radio Adapters
+#
+# CONFIG_RADIO_CADET is not set
+# CONFIG_RADIO_RTRACK is not set
+# CONFIG_RADIO_RTRACK2 is not set
+# CONFIG_RADIO_AZTECH is not set
+# CONFIG_RADIO_GEMTEK is not set
+# CONFIG_RADIO_MAESTRO is not set
+# CONFIG_RADIO_SF16FMI is not set
+# CONFIG_RADIO_SF16FMR2 is not set
+# CONFIG_RADIO_TERRATEC is not set
+# CONFIG_RADIO_TRUST is not set
+# CONFIG_RADIO_TYPHOON is not set
+# CONFIG_RADIO_ZOLTRIX is not set
+
+#
+# Digital Video Broadcasting Devices
+#
+# CONFIG_DVB is not set
+
+#
+# Graphics support
+#
+CONFIG_FB=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_SOFT_CURSOR=y
+# CONFIG_FB_MACMODES is not set
+CONFIG_FB_MODE_HELPERS=y
+# CONFIG_FB_TILEBLITTING is not set
+CONFIG_FB_SA1100=y
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_VIRTUAL is not set
+
+#
+# Console display driver support
+#
+# CONFIG_VGA_CONSOLE is not set
+# CONFIG_MDA_CONSOLE is not set
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FONTS=y
+CONFIG_FONT_8x8=y
+# CONFIG_FONT_8x16 is not set
+# CONFIG_FONT_6x11 is not set
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_SUN8x16 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_10x18 is not set
+
+#
+# Logo configuration
+#
+# CONFIG_LOGO is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+
+#
+# USB support
+#
+CONFIG_USB_ARCH_HAS_HCD=y
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB is not set
+
+#
+# USB Gadget Support
+#
+CONFIG_USB_GADGET=y
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+# CONFIG_USB_GADGET_NET2280 is not set
+# CONFIG_USB_GADGET_PXA2XX is not set
+# CONFIG_USB_GADGET_GOKU is not set
+# CONFIG_USB_GADGET_LH7A40X is not set
+# CONFIG_USB_GADGET_OMAP is not set
+# CONFIG_USB_GADGET_DUMMY_HCD is not set
+# CONFIG_USB_GADGET_DUALSPEED is not set
+
+#
+# MMC/SD Card support
+#
+# CONFIG_MMC is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+# CONFIG_EXT2_FS_XIP is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_JBD is not set
+CONFIG_FS_MBCACHE=y
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+CONFIG_FS_POSIX_ACL=y
+# CONFIG_XFS_FS is not set
+# CONFIG_MINIX_FS is not set
+CONFIG_ROMFS_FS=y
+CONFIG_INOTIFY=y
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_HUGETLBFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+# CONFIG_RELAYFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_JFFS_FS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=0
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+CONFIG_CRAMFS=y
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Network File Systems
+#
+# CONFIG_NFS_FS is not set
+# CONFIG_NFSD is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+
+#
+# Native Language Support
+#
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="cp437"
+CONFIG_NLS_CODEPAGE_437=m
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+# CONFIG_NLS_CODEPAGE_850 is not set
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_ASCII is not set
+CONFIG_NLS_ISO8859_1=m
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+CONFIG_NLS_UTF8=m
+
+#
+# Profiling support
+#
+# CONFIG_PROFILING is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_DEBUG_KERNEL=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_DETECT_SOFTLOCKUP=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_DEBUG_SLAB is not set
+CONFIG_DEBUG_PREEMPT=y
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_KOBJECT is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_DEBUG_INFO is not set
+# CONFIG_DEBUG_FS is not set
+CONFIG_FRAME_POINTER=y
+# CONFIG_DEBUG_USER is not set
+# CONFIG_DEBUG_WAITQ is not set
+CONFIG_DEBUG_ERRORS=y
+# CONFIG_DEBUG_LL is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+
+#
+# Cryptographic options
+#
+# CONFIG_CRYPTO is not set
+
+#
+# Hardware crypto devices
+#
+
+#
+# Library routines
+#
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+CONFIG_CRC32=y
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y

arch/arm/kernel/armksyms.c

@@ -45,8 +45,8 @@ extern void fp_enter(void);
 
 #define EXPORT_SYMBOL_ALIAS(sym,orig)		\
  EXPORT_CRC_ALIAS(sym)				\
- const struct kernel_symbol __ksymtab_##sym	\
+ static const struct kernel_symbol __ksymtab_##sym	\
-  __attribute__((section("__ksymtab"))) =	\
+  __attribute_used__ __attribute__((section("__ksymtab"))) =	\
     { (unsigned long)&orig, #sym };
 
 /*

arch/arm/kernel/entry-common.S

@@ -106,15 +106,10 @@ ENTRY(ret_from_fork)
 	.endm
 
 .Larm700bug:
-	ldr	r0, [sp, #S_PSR]		@ Get calling cpsr
-	sub	lr, lr, #4
-	str	lr, [r8]
-	msr	spsr_cxsf, r0
 	ldmia	sp, {r0 - lr}^			@ Get calling r0 - lr
 	mov	r0, r0
-	ldr	lr, [sp, #S_PC]			@ Get PC
 	add	sp, sp, #S_FRAME_SIZE
-	movs	pc, lr
+	subs	pc, lr, #4
 #else
 	.macro	arm710_bug_check, instr, temp
 	.endm

arch/arm/kernel/vmlinux.lds.S

@@ -89,13 +89,6 @@ SECTIONS
 		*(.got)			/* Global offset table		*/
 	}
 
-	. = ALIGN(16);
-	__ex_table : {			/* Exception table		*/
-		__start___ex_table = .;
-			*(__ex_table)
-		__stop___ex_table = .;
-	}
-
 	RODATA
 
 	_etext = .;			/* End of text and rodata section */
@@ -137,6 +130,14 @@ SECTIONS
 		. = ALIGN(32);
 		*(.data.cacheline_aligned)
 
+		/*
+		 * The exception fixup table (might need resorting at runtime)
+		 */
+		. = ALIGN(32);
+		__start___ex_table = .;
+		*(__ex_table)
+		__stop___ex_table = .;
+
 		/*
 		 * and the usual data section
 		 */

arch/arm/mach-l7200/core.c

@@ -7,11 +7,17 @@
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/device.h>
 
+#include <asm/types.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
 #include <asm/hardware.h>
 #include <asm/page.h>
 
+#include <asm/mach/arch.h>
 #include <asm/mach/map.h>
+#include <asm/mach/irq.h>
 
 /*
  * IRQ base register
@@ -47,6 +53,12 @@ static void l7200_unmask_irq(unsigned int irq)
 {
 	IRQ_ENABLE = 1 << irq;
 }
+
+static struct irqchip l7200_irq_chip = {
+	.ack		= l7200_mask_irq,
+	.mask		= l7200_mask_irq,
+	.unmask		= l7200_unmask_irq
+};
  
 static void __init l7200_init_irq(void)
 {
@@ -56,11 +68,9 @@ static void __init l7200_init_irq(void)
 	FIQ_ENABLECLEAR = 0xffffffff;	/* clear all fast interrupt enables */
 
 	for (irq = 0; irq < NR_IRQS; irq++) {
-		irq_desc[irq].valid	= 1;
+		set_irq_chip(irq, &l7200_irq_chip);
-		irq_desc[irq].probe_ok	= 1;
+		set_irq_flags(irq, IRQF_VALID);
-		irq_desc[irq].mask_ack	= l7200_mask_irq;
+		set_irq_handler(irq, do_level_IRQ);
-		irq_desc[irq].mask	= l7200_mask_irq;
-		irq_desc[irq].unmask	= l7200_unmask_irq;
 	}
 
 	init_FIQ();

arch/arm/mach-pxa/corgi.c

@@ -36,6 +36,7 @@
 #include <asm/arch/mmc.h>
 #include <asm/arch/udc.h>
 #include <asm/arch/corgi.h>
+#include <asm/arch/sharpsl.h>
 
 #include <asm/mach/sharpsl_param.h>
 #include <asm/hardware/scoop.h>

arch/arm/mach-pxa/corgi_lcd.c

@@ -467,6 +467,7 @@ void corgi_put_hsync(void)
 {
 	if (get_hsync_time)
 		symbol_put(w100fb_get_hsynclen);
+	get_hsync_time = NULL;
 }
 
 void corgi_wait_hsync(void)
@@ -476,20 +477,37 @@ void corgi_wait_hsync(void)
 #endif
 
 #ifdef CONFIG_PXA_SHARP_Cxx00
+static struct device *spitz_pxafb_dev;
+
+static int is_pxafb_device(struct device * dev, void * data)
+{
+	struct platform_device *pdev = container_of(dev, struct platform_device, dev);
+
+	return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
+}
+
 unsigned long spitz_get_hsync_len(void)
 {
+	if (!spitz_pxafb_dev) {
+		spitz_pxafb_dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device);
+		if (!spitz_pxafb_dev)
+			return 0;
+	}
 	if (!get_hsync_time)
 		get_hsync_time = symbol_get(pxafb_get_hsync_time);
 	if (!get_hsync_time)
 		return 0;
 
-	return pxafb_get_hsync_time(&pxafb_device.dev);
+	return pxafb_get_hsync_time(spitz_pxafb_dev);
 }
 
 void spitz_put_hsync(void)
 {
+	put_device(spitz_pxafb_dev);
 	if (get_hsync_time)
 		symbol_put(pxafb_get_hsync_time);
+	spitz_pxafb_dev = NULL;
+	get_hsync_time = NULL;
 }
 
 void spitz_wait_hsync(void)

arch/arm/mach-pxa/generic.c

@@ -208,6 +208,11 @@ static struct platform_device pxafb_device = {
 	.resource	= pxafb_resources,
 };
 
+void __init set_pxa_fb_parent(struct device *parent_dev)
+{
+	pxafb_device.dev.parent = parent_dev;
+}
+
 static struct platform_device ffuart_device = {
 	.name		= "pxa2xx-uart",
 	.id		= 0,

arch/arm/mach-pxa/spitz.c

@@ -36,7 +36,6 @@
 #include <asm/arch/irq.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/udc.h>
-#include <asm/arch/ohci.h>
 #include <asm/arch/pxafb.h>
 #include <asm/arch/akita.h>
 #include <asm/arch/spitz.h>
@@ -304,7 +303,6 @@ static struct platform_device *devices[] __initdata = {
 	&spitzkbd_device,
 	&spitzts_device,
 	&spitzbl_device,
-	&spitzbattery_device,
 };
 
 static void __init common_init(void)
@@ -328,7 +326,7 @@ static void __init common_init(void)
 
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 	pxa_set_mci_info(&spitz_mci_platform_data);
-	pxafb_device.dev.parent = &spitzssp_device.dev;
+	set_pxa_fb_parent(&spitzssp_device.dev);
 	set_pxa_fb_info(&spitz_pxafb_info);
 }
 

arch/arm/mach-s3c2410/Kconfig

@@ -12,6 +12,7 @@ config MACH_ANUBIS
 config ARCH_BAST
 	bool "Simtec Electronics BAST (EB2410ITX)"
 	select CPU_S3C2410
+	select ISA
 	help
 	  Say Y here if you are using the Simtec Electronics EB2410ITX
 	  development board (also known as BAST)

arch/arm/mach-s3c2410/mach-anubis.c

@@ -125,7 +125,7 @@ static int external_map[]   = { 2 };
 static int chip0_map[]      = { 0 };
 static int chip1_map[]      = { 1 };
 
-struct mtd_partition anubis_default_nand_part[] = {
+static struct mtd_partition anubis_default_nand_part[] = {
 	[0] = {
 		.name	= "Boot Agent",
 		.size	= SZ_16K,

arch/arm/mach-s3c2410/mach-bast.c

@@ -230,7 +230,7 @@ static int chip0_map[] = { 1 };
 static int chip1_map[] = { 2 };
 static int chip2_map[] = { 3 };
 
-struct mtd_partition bast_default_nand_part[] = {
+static struct mtd_partition bast_default_nand_part[] = {
 	[0] = {
 		.name	= "Boot Agent",
 		.size	= SZ_16K,
@@ -340,7 +340,7 @@ static struct resource bast_dm9k_resource[] = {
  * better IO routines can be written and tested
 */
 
-struct dm9000_plat_data bast_dm9k_platdata = {
+static struct dm9000_plat_data bast_dm9k_platdata = {
 	.flags		= DM9000_PLATF_16BITONLY
 };
 

arch/arm/mach-s3c2410/mach-vr1000.c

@@ -288,7 +288,7 @@ static struct resource vr1000_dm9k1_resource[] = {
  * better IO routines can be written and tested
 */
 
-struct dm9000_plat_data vr1000_dm9k_platdata = {
+static struct dm9000_plat_data vr1000_dm9k_platdata = {
 	.flags		= DM9000_PLATF_16BITONLY,
 };
 

arch/arm/mach-s3c2410/s3c2410.c

@@ -125,9 +125,6 @@ static struct platform_device *uart_devices[] __initdata = {
 	&s3c_uart2
 };
 
-/* store our uart devices for the serial driver console */
-struct platform_device *s3c2410_uart_devices[3];
-
 static int s3c2410_uart_count = 0;
 
 /* uart registration process */

arch/arm/mach-s3c2410/s3c2440.c

@@ -151,7 +151,7 @@ void __init s3c2440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 
 #ifdef CONFIG_PM
 
-struct sleep_save s3c2440_sleep[] = {
+static struct sleep_save s3c2440_sleep[] = {
 	SAVE_ITEM(S3C2440_DSC0),
 	SAVE_ITEM(S3C2440_DSC1),
 	SAVE_ITEM(S3C2440_GPJDAT),
@@ -260,7 +260,7 @@ void __init s3c2440_init_clocks(int xtal)
  * as a driver which may support both 2410 and 2440 may try and use it.
 */
 
-int __init s3c2440_core_init(void)
+static int __init s3c2440_core_init(void)
 {
 	return sysdev_class_register(&s3c2440_sysclass);
 }

arch/arm/mach-s3c2410/time.c

@@ -38,6 +38,7 @@
 #include <asm/hardware/clock.h>
 
 #include "clock.h"
+#include "cpu.h"
 
 static unsigned long timer_startval;
 static unsigned long timer_usec_ticks;

arch/arm/mach-sa1100/collie.c

@@ -111,11 +111,11 @@ static struct mtd_partition collie_partitions[] = {
 
 static void collie_set_vpp(int vpp)
 {
-	write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(SCOOP_GPCR) | COLLIE_SCP_VPEN);
+	write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN);
 	if (vpp)
-		write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(SCOOP_GPWR) | COLLIE_SCP_VPEN);
+		write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN);
 	else
-		write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
+		write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
 }
 
 static struct flash_platform_data collie_flash_data = {

arch/arm/mm/alignment.c

@@ -111,7 +111,7 @@ proc_alignment_read(char *page, char **start, off_t off, int count, int *eof,
 }
 
 static int proc_alignment_write(struct file *file, const char __user *buffer,
-			       unsigned long count, void *data)
+				unsigned long count, void *data)
 {
 	char mode;
 
@@ -119,7 +119,7 @@ static int proc_alignment_write(struct file *file, const char __user *buffer,
 		if (get_user(mode, buffer))
 			return -EFAULT;
 		if (mode >= '0' && mode <= '5')
-			   ai_usermode = mode - '0';
+			ai_usermode = mode - '0';
 	}
 	return count;
 }
@@ -262,7 +262,7 @@ union offset_union {
 			goto fault;				\
 	} while (0)
 
-#define put32_unaligned_check(val,addr)	 \
+#define put32_unaligned_check(val,addr) \
 	__put32_unaligned_check("strb", val, addr)
 
 #define put32t_unaligned_check(val,addr) \
@@ -306,19 +306,19 @@ do_alignment_ldrhstrh(unsigned long addr, unsigned long instr, struct pt_regs *r
 	return TYPE_LDST;
 
  user:
- 	if (LDST_L_BIT(instr)) {
+	if (LDST_L_BIT(instr)) {
- 		unsigned long val;
+		unsigned long val;
- 		get16t_unaligned_check(val, addr);
+		get16t_unaligned_check(val, addr);
 
- 		/* signed half-word? */
+		/* signed half-word? */
- 		if (instr & 0x40)
+		if (instr & 0x40)
- 			val = (signed long)((signed short) val);
+			val = (signed long)((signed short) val);
 
- 		regs->uregs[rd] = val;
+		regs->uregs[rd] = val;
- 	} else
+	} else
- 		put16t_unaligned_check(regs->uregs[rd], addr);
+		put16t_unaligned_check(regs->uregs[rd], addr);
 
- 	return TYPE_LDST;
+	return TYPE_LDST;
 
  fault:
 	return TYPE_FAULT;
@@ -330,6 +330,9 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
 {
 	unsigned int rd = RD_BITS(instr);
 
+	if (((rd & 1) == 1) || (rd == 14))
+		goto bad;
+
 	ai_dword += 1;
 
 	if (user_mode(regs))
@@ -339,11 +342,11 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
 		unsigned long val;
 		get32_unaligned_check(val, addr);
 		regs->uregs[rd] = val;
-		get32_unaligned_check(val, addr+4);
+		get32_unaligned_check(val, addr + 4);
-		regs->uregs[rd+1] = val;
+		regs->uregs[rd + 1] = val;
 	} else {
 		put32_unaligned_check(regs->uregs[rd], addr);
-		put32_unaligned_check(regs->uregs[rd+1], addr+4);
+		put32_unaligned_check(regs->uregs[rd + 1], addr + 4);
 	}
 
 	return TYPE_LDST;
@@ -353,15 +356,16 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
 		unsigned long val;
 		get32t_unaligned_check(val, addr);
 		regs->uregs[rd] = val;
-		get32t_unaligned_check(val, addr+4);
+		get32t_unaligned_check(val, addr + 4);
-		regs->uregs[rd+1] = val;
+		regs->uregs[rd + 1] = val;
 	} else {
 		put32t_unaligned_check(regs->uregs[rd], addr);
-		put32t_unaligned_check(regs->uregs[rd+1], addr+4);
+		put32t_unaligned_check(regs->uregs[rd + 1], addr + 4);
 	}
 
 	return TYPE_LDST;
-
+ bad:
+	return TYPE_ERROR;
  fault:
 	return TYPE_FAULT;
 }
@@ -439,7 +443,7 @@ do_alignment_ldmstm(unsigned long addr, unsigned long instr, struct pt_regs *reg
 	if (LDST_P_EQ_U(instr))	/* U = P */
 		eaddr += 4;
 
-	/* 
+	/*
 	 * For alignment faults on the ARM922T/ARM920T the MMU  makes
 	 * the FSR (and hence addr) equal to the updated base address
 	 * of the multiple access rather than the restored value.
@@ -566,7 +570,7 @@ thumb2arm(u16 tinstr)
 	/* 6.5.1 Format 3: */
 	case 0x4800 >> 11:				/* 7.1.28 LDR(3) */
 		/* NOTE: This case is not technically possible. We're
-		 * 	 loading 32-bit memory data via PC relative
+		 *	 loading 32-bit memory data via PC relative
 		 *	 addressing mode. So we can and should eliminate
 		 *	 this case. But I'll leave it here for now.
 		 */
@@ -638,7 +642,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 
 	if (fault) {
 		type = TYPE_FAULT;
- 		goto bad_or_fault;
+		goto bad_or_fault;
 	}
 
 	if (user_mode(regs))
@@ -663,6 +667,8 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 		else if ((instr & 0x001000f0) == 0x000000d0 || /* LDRD */
 			 (instr & 0x001000f0) == 0x000000f0)   /* STRD */
 			handler = do_alignment_ldrdstrd;
+		else if ((instr & 0x01f00ff0) == 0x01000090) /* SWP */
+			goto swp;
 		else
 			goto bad;
 		break;
@@ -733,6 +739,9 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	do_bad_area(current, current->mm, addr, fsr, regs);
 	return 0;
 
+ swp:
+	printk(KERN_ERR "Alignment trap: not handling swp instruction\n");
+
  bad:
 	/*
 	 * Oops, we didn't handle the instruction.

arch/arm/nwfpe/fpa11.c

@@ -31,11 +31,6 @@
 #include <linux/string.h>
 #include <asm/system.h>
 
-/* forward declarations */
-unsigned int EmulateCPDO(const unsigned int);
-unsigned int EmulateCPDT(const unsigned int);
-unsigned int EmulateCPRT(const unsigned int);
-
 /* Reset the FPA11 chip.  Called to initialize and reset the emulator. */
 static void resetFPA11(void)
 {

arch/arm/nwfpe/fpa11.h

@@ -95,4 +95,24 @@ extern int8 SetRoundingMode(const unsigned int);
 extern int8 SetRoundingPrecision(const unsigned int);
 extern void nwfpe_init_fpa(union fp_state *fp);
 
+extern unsigned int EmulateAll(unsigned int opcode);
+
+extern unsigned int EmulateCPDT(const unsigned int opcode);
+extern unsigned int EmulateCPDO(const unsigned int opcode);
+extern unsigned int EmulateCPRT(const unsigned int opcode);
+
+/* fpa11_cpdt.c */
+extern unsigned int PerformLDF(const unsigned int opcode);
+extern unsigned int PerformSTF(const unsigned int opcode);
+extern unsigned int PerformLFM(const unsigned int opcode);
+extern unsigned int PerformSFM(const unsigned int opcode);
+
+/* single_cpdo.c */
+
+extern unsigned int SingleCPDO(struct roundingData *roundData,
+			       const unsigned int opcode, FPREG * rFd);
+/* double_cpdo.c */
+extern unsigned int DoubleCPDO(struct roundingData *roundData,
+			       const unsigned int opcode, FPREG * rFd);
+
 #endif

arch/arm/nwfpe/fpa11_cprt.c

@@ -26,12 +26,11 @@
 #include "fpa11.inl"
 #include "fpmodule.h"
 #include "fpmodule.inl"
+#include "softfloat.h"
 
 #ifdef CONFIG_FPE_NWFPE_XP
 extern flag floatx80_is_nan(floatx80);
 #endif
-extern flag float64_is_nan(float64);
-extern flag float32_is_nan(float32);
 
 unsigned int PerformFLT(const unsigned int opcode);
 unsigned int PerformFIX(const unsigned int opcode);

arch/arm/nwfpe/fpopcode.h

@@ -476,4 +476,10 @@ static inline unsigned int getDestinationSize(const unsigned int opcode)
 	return (nRc);
 }
 
+extern unsigned int checkCondition(const unsigned int opcode,
+				   const unsigned int ccodes);
+
+extern const float64 float64Constant[];
+extern const float32 float32Constant[];
+
 #endif

arch/arm/nwfpe/softfloat.h

@@ -265,4 +265,7 @@ static inline flag float64_lt_nocheck(float64 a, float64 b)
 	return (a != b) && (aSign ^ (a < b));
 }
 
+extern flag float32_is_nan( float32 a );
+extern flag float64_is_nan( float64 a );
+
 #endif

arch/arm/tools/mach-types

@@ -2,11 +2,17 @@
 #
 # This file is linux/arch/arm/tools/mach-types
 #
+# Up to date versions of this file can be obtained from:
+#
+#   http://www.arm.linux.org.uk/developer/machines/?action=download
+#
 # Please do not send patches to this file; it is automatically generated!
 # To add an entry into this database, please see Documentation/arm/README,
-# or contact rmk@arm.linux.org.uk
+# or visit:
 #
-# Last update: Thu Jun 23 20:19:33 2005
+#   http://www.arm.linux.org.uk/developer/machines/?action=new
+#
+# Last update: Mon Oct 10 09:46:25 2005
 #
 # machine_is_xxx	CONFIG_xxxx		MACH_TYPE_xxx		number
 #
@@ -421,7 +427,7 @@ mt02			MACH_MT02		MT02			410
 mport3s			MACH_MPORT3S		MPORT3S			411
 ra_alpha		MACH_RA_ALPHA		RA_ALPHA		412
 xcep			MACH_XCEP		XCEP			413
-arcom_mercury		MACH_ARCOM_MERCURY	ARCOM_MERCURY		414
+arcom_vulcan		MACH_ARCOM_VULCAN	ARCOM_VULCAN		414
 stargate		MACH_STARGATE		STARGATE		415
 armadilloj		MACH_ARMADILLOJ		ARMADILLOJ		416
 elroy_jack		MACH_ELROY_JACK		ELROY_JACK		417
@@ -454,7 +460,7 @@ esl_sarva		MACH_ESL_SARVA		ESL_SARVA		443
 xm250			MACH_XM250		XM250			444
 t6tc1xb			MACH_T6TC1XB		T6TC1XB			445
 ess710			MACH_ESS710		ESS710			446
-mx3ads			MACH_MX3ADS		MX3ADS			447
+mx31ads			MACH_MX3ADS		MX3ADS			447
 himalaya		MACH_HIMALAYA		HIMALAYA		448
 bolfenk			MACH_BOLFENK		BOLFENK			449
 at91rm9200kr		MACH_AT91RM9200KR	AT91RM9200KR		450
@@ -787,3 +793,79 @@ ez_ixp42x		MACH_EZ_IXP42X		EZ_IXP42X		778
 tapwave_zodiac		MACH_TAPWAVE_ZODIAC	TAPWAVE_ZODIAC		779
 universalmeter		MACH_UNIVERSALMETER	UNIVERSALMETER		780
 hicoarm9		MACH_HICOARM9		HICOARM9		781
+pnx4008			MACH_PNX4008		PNX4008			782
+kws6000			MACH_KWS6000		KWS6000			783
+portux920t		MACH_PORTUX920T		PORTUX920T		784
+ez_x5			MACH_EZ_X5		EZ_X5			785
+omap_rudolph		MACH_OMAP_RUDOLPH	OMAP_RUDOLPH		786
+cpuat91			MACH_CPUAT91		CPUAT91			787
+rea9200			MACH_REA9200		REA9200			788
+acts_pune_sa1110	MACH_ACTS_PUNE_SA1110	ACTS_PUNE_SA1110	789
+ixp425			MACH_IXP425		IXP425			790
+argonplusodyssey	MACH_ODYSSEY		ODYSSEY			791
+perch			MACH_PERCH		PERCH			792
+eis05r1			MACH_EIS05R1		EIS05R1			793
+pepperpad		MACH_PEPPERPAD		PEPPERPAD		794
+sb3010			MACH_SB3010		SB3010			795
+rm9200			MACH_RM9200		RM9200			796
+dma03			MACH_DMA03		DMA03			797
+road_s101		MACH_ROAD_S101		ROAD_S101		798
+iq_nextgen_a		MACH_IQ_NEXTGEN_A	IQ_NEXTGEN_A		799
+iq_nextgen_b		MACH_IQ_NEXTGEN_B	IQ_NEXTGEN_B		800
+iq_nextgen_c		MACH_IQ_NEXTGEN_C	IQ_NEXTGEN_C		801
+iq_nextgen_d		MACH_IQ_NEXTGEN_D	IQ_NEXTGEN_D		802
+iq_nextgen_e		MACH_IQ_NEXTGEN_E	IQ_NEXTGEN_E		803
+mallow_at91		MACH_MALLOW_AT91	MALLOW_AT91		804
+cybertracker		MACH_CYBERTRACKER	CYBERTRACKER		805
+gesbc931x		MACH_GESBC931X		GESBC931X		806
+centipad		MACH_CENTIPAD		CENTIPAD		807
+armsoc			MACH_ARMSOC		ARMSOC			808
+se4200			MACH_SE4200		SE4200			809
+ems197a			MACH_EMS197A		EMS197A			810
+micro9			MACH_MICRO9		MICRO9			811
+micro9l			MACH_MICRO9L		MICRO9L			812
+uc5471dsp		MACH_UC5471DSP		UC5471DSP		813
+sj5471eng		MACH_SJ5471ENG		SJ5471ENG		814
+none			MACH_CMPXA26X		CMPXA26X		815
+nc			MACH_NC			NC			816
+omap_palmte		MACH_OMAP_PALMTE	OMAP_PALMTE		817
+ajax52x			MACH_AJAX52X		AJAX52X			818
+siriustar		MACH_SIRIUSTAR		SIRIUSTAR		819
+iodata_hdlg		MACH_IODATA_HDLG	IODATA_HDLG		820
+at91rm9200utl		MACH_AT91RM9200UTL	AT91RM9200UTL		821
+biosafe			MACH_BIOSAFE		BIOSAFE			822
+mp1000			MACH_MP1000		MP1000			823
+parsy			MACH_PARSY		PARSY			824
+ccxp270			MACH_CCXP		CCXP			825
+omap_gsample		MACH_OMAP_GSAMPLE	OMAP_GSAMPLE		826
+realview_eb		MACH_REALVIEW_EB	REALVIEW_EB		827
+samoa			MACH_SAMOA		SAMOA			828
+t3xscale		MACH_T3XSCALE		T3XSCALE		829
+i878			MACH_I878		I878			830
+borzoi			MACH_BORZOI		BORZOI			831
+gecko			MACH_GECKO		GECKO			832
+ds101			MACH_DS101		DS101			833
+omap_palmtt2		MACH_OMAP_PALMTT2	OMAP_PALMTT2		834
+xscale_palmld		MACH_XSCALE_PALMLD	XSCALE_PALMLD		835
+cc9c			MACH_CC9C		CC9C			836
+sbc1670			MACH_SBC1670		SBC1670			837
+ixdp28x5		MACH_IXDP28X5		IXDP28X5		838
+omap_palmtt		MACH_OMAP_PALMTT	OMAP_PALMTT		839
+ml696k			MACH_ML696K		ML696K			840
+arcom_zeus		MACH_ARCOM_ZEUS		ARCOM_ZEUS		841
+osiris			MACH_OSIRIS		OSIRIS			842
+maestro			MACH_MAESTRO		MAESTRO			843
+tunge2			MACH_TUNGE2		TUNGE2			844
+ixbbm			MACH_IXBBM		IXBBM			845
+mx27			MACH_MX27		MX27			846
+ax8004			MACH_AX8004		AX8004			847
+at91sam9261ek		MACH_AT91SAM9261EK	AT91SAM9261EK		848
+loft			MACH_LOFT		LOFT			849
+magpie			MACH_MAGPIE		MAGPIE			850
+mx21			MACH_MX21		MX21			851
+mb87m3400		MACH_MB87M3400		MB87M3400		852
+mguard_delta		MACH_MGUARD_DELTA	MGUARD_DELTA		853
+davinci_dvdp		MACH_DAVINCI_DVDP	DAVINCI_DVDP		854
+htcuniversal		MACH_HTCUNIVERSAL	HTCUNIVERSAL		855
+tpad			MACH_TPAD		TPAD			856
+roverp3			MACH_ROVERP3		ROVERP3			857

arch/cris/arch-v32/drivers/pci/dma.c

@@ -24,7 +24,7 @@ struct dma_coherent_mem {
 };
 
 void *dma_alloc_coherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, unsigned int __nocast gfp)
+			   dma_addr_t *dma_handle, gfp_t gfp)
 {
 	void *ret;
 	struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;

arch/cris/arch-v32/kernel/smp.c

@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/cpumask.h>
 #include <linux/interrupt.h>
+#include <linux/module.h>
 
 #define IPI_SCHEDULE 1
 #define IPI_CALL 2
@@ -28,6 +29,7 @@ spinlock_t cris_atomic_locks[] = { [0 ... LOCK_COUNT - 1] = SPIN_LOCK_UNLOCKED};
 /* CPU masks */
 cpumask_t cpu_online_map = CPU_MASK_NONE;
 cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
+EXPORT_SYMBOL(phys_cpu_present_map);
 
 /* Variables used during SMP boot */
 volatile int cpu_now_booting = 0;

arch/i386/kernel/cpu/amd.c

@@ -29,7 +29,7 @@ static void __init init_amd(struct cpuinfo_x86 *c)
 	int r;
 
 #ifdef CONFIG_SMP
-	unsigned long value;
+	unsigned long long value;
 
 	/* Disable TLB flush filter by setting HWCR.FFDIS on K8
 	 * bit 6 of msr C001_0015

arch/i386/kernel/pci-dma.c

@@ -23,7 +23,7 @@ struct dma_coherent_mem {
 };
 
 void *dma_alloc_coherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, unsigned int __nocast gfp)
+			   dma_addr_t *dma_handle, gfp_t gfp)
 {
 	void *ret;
 	struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;

arch/i386/kernel/signal.c

@@ -338,7 +338,11 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
 		esp = (unsigned long) ka->sa.sa_restorer;
 	}
 
-	return (void __user *)((esp - frame_size) & -8ul);
+	esp -= frame_size;
+	/* Align the stack pointer according to the i386 ABI,
+	 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
+	esp = ((esp + 4) & -16ul) - 4;
+	return (void __user *) esp;
 }
 
 /* These symbols are defined with the addresses in the vsyscall page.

arch/m32r/kernel/entry.S

@@ -681,6 +681,15 @@ ENTRY(debug_trap)
 	bl	do_debug_trap
 	bra	error_code
 
+ENTRY(ill_trap)
+	/* void ill_trap(void) */
+	SWITCH_TO_KERNEL_STACK
+	SAVE_ALL
+	ldi	r1, #0				; error_code ; FIXME
+	mv	r0, sp				; pt_regs
+	bl	do_ill_trap
+	bra	error_code
+
 
 /* Cache flushing handler */
 ENTRY(cache_flushing_handler)

arch/m32r/kernel/smp.c

@@ -275,12 +275,14 @@ static void flush_tlb_all_ipi(void *info)
  *==========================================================================*/
 void smp_flush_tlb_mm(struct mm_struct *mm)
 {
-	int cpu_id = smp_processor_id();
+	int cpu_id;
 	cpumask_t cpu_mask;
-	unsigned long *mmc = &mm->context[cpu_id];
+	unsigned long *mmc;
 	unsigned long flags;
 
 	preempt_disable();
+	cpu_id = smp_processor_id();
+	mmc = &mm->context[cpu_id];
 	cpu_mask = mm->cpu_vm_mask;
 	cpu_clear(cpu_id, cpu_mask);
 
@@ -343,12 +345,14 @@ void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
 {
 	struct mm_struct *mm = vma->vm_mm;
-	int cpu_id = smp_processor_id();
+	int cpu_id;
 	cpumask_t cpu_mask;
-	unsigned long *mmc = &mm->context[cpu_id];
+	unsigned long *mmc;
 	unsigned long flags;
 
 	preempt_disable();
+	cpu_id = smp_processor_id();
+	mmc = &mm->context[cpu_id];
 	cpu_mask = mm->cpu_vm_mask;
 	cpu_clear(cpu_id, cpu_mask);
 

arch/m32r/kernel/traps.c

@@ -5,8 +5,6 @@
  *                            Hitoshi Yamamoto
  */
 
-/* $Id$ */
-
 /*
  * 'traps.c' handles hardware traps and faults after we have saved some
  * state in 'entry.S'.
@@ -35,6 +33,7 @@ asmlinkage void ei_handler(void);
 asmlinkage void rie_handler(void);
 asmlinkage void debug_trap(void);
 asmlinkage void cache_flushing_handler(void);
+asmlinkage void ill_trap(void);
 
 #ifdef CONFIG_SMP
 extern void smp_reschedule_interrupt(void);
@@ -77,22 +76,22 @@ void	set_eit_vector_entries(void)
 	eit_vector[5] = BRA_INSN(default_eit_handler, 5);
 	eit_vector[8] = BRA_INSN(rie_handler, 8);
 	eit_vector[12] = BRA_INSN(alignment_check, 12);
-	eit_vector[16] = 0xff000000UL;
+	eit_vector[16] = BRA_INSN(ill_trap, 16);
 	eit_vector[17] = BRA_INSN(debug_trap, 17);
 	eit_vector[18] = BRA_INSN(system_call, 18);
-	eit_vector[19] = 0xff000000UL;
+	eit_vector[19] = BRA_INSN(ill_trap, 19);
-	eit_vector[20] = 0xff000000UL;
+	eit_vector[20] = BRA_INSN(ill_trap, 20);
-	eit_vector[21] = 0xff000000UL;
+	eit_vector[21] = BRA_INSN(ill_trap, 21);
-	eit_vector[22] = 0xff000000UL;
+	eit_vector[22] = BRA_INSN(ill_trap, 22);
-	eit_vector[23] = 0xff000000UL;
+	eit_vector[23] = BRA_INSN(ill_trap, 23);
-	eit_vector[24] = 0xff000000UL;
+	eit_vector[24] = BRA_INSN(ill_trap, 24);
-	eit_vector[25] = 0xff000000UL;
+	eit_vector[25] = BRA_INSN(ill_trap, 25);
-	eit_vector[26] = 0xff000000UL;
+	eit_vector[26] = BRA_INSN(ill_trap, 26);
-	eit_vector[27] = 0xff000000UL;
+	eit_vector[27] = BRA_INSN(ill_trap, 27);
 	eit_vector[28] = BRA_INSN(cache_flushing_handler, 28);
-	eit_vector[29] = 0xff000000UL;
+	eit_vector[29] = BRA_INSN(ill_trap, 29);
-	eit_vector[30] = 0xff000000UL;
+	eit_vector[30] = BRA_INSN(ill_trap, 30);
-	eit_vector[31] = 0xff000000UL;
+	eit_vector[31] = BRA_INSN(ill_trap, 31);
 	eit_vector[32] = BRA_INSN(ei_handler, 32);
 	eit_vector[64] = BRA_INSN(pie_handler, 64);
 #ifdef CONFIG_MMU
@@ -286,7 +285,8 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
 
 DO_ERROR( 1, SIGTRAP, "debug trap", debug_trap)
 DO_ERROR_INFO(0x20, SIGILL,  "reserved instruction ", rie_handler, ILL_ILLOPC, regs->bpc)
-DO_ERROR_INFO(0x100, SIGILL,  "privilege instruction", pie_handler, ILL_PRVOPC, regs->bpc)
+DO_ERROR_INFO(0x100, SIGILL,  "privileged instruction", pie_handler, ILL_PRVOPC, regs->bpc)
+DO_ERROR_INFO(-1, SIGILL,  "illegal trap", ill_trap, ILL_ILLTRP, regs->bpc)
 
 extern int handle_unaligned_access(unsigned long, struct pt_regs *);
 
@@ -329,4 +329,3 @@ asmlinkage void do_alignment_check(struct pt_regs *regs, long error_code)
 		set_fs(oldfs);
 	}
 }
-

arch/mips/pci/fixup-tb0226.c

@@ -1,7 +1,7 @@
 /*
  *  fixup-tb0226.c, The TANBAC TB0226 specific PCI fixups.
  *
- *  Copyright (C) 2002-2004  Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
+ *  Copyright (C) 2002-2005  Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -20,6 +20,7 @@
 #include <linux/init.h>
 #include <linux/pci.h>
 
+#include <asm/vr41xx/giu.h>
 #include <asm/vr41xx/tb0226.h>
 
 int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
@@ -29,42 +30,42 @@ int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 	switch (slot) {
 	case 12:
 		vr41xx_set_irq_trigger(GD82559_1_PIN,
-				       TRIGGER_LEVEL,
+				       IRQ_TRIGGER_LEVEL,
-				       SIGNAL_THROUGH);
+				       IRQ_SIGNAL_THROUGH);
-		vr41xx_set_irq_level(GD82559_1_PIN, LEVEL_LOW);
+		vr41xx_set_irq_level(GD82559_1_PIN, IRQ_LEVEL_LOW);
 		irq = GD82559_1_IRQ;
 		break;
 	case 13:
 		vr41xx_set_irq_trigger(GD82559_2_PIN,
-				       TRIGGER_LEVEL,
+				       IRQ_TRIGGER_LEVEL,
-				       SIGNAL_THROUGH);
+				       IRQ_SIGNAL_THROUGH);
-		vr41xx_set_irq_level(GD82559_2_PIN, LEVEL_LOW);
+		vr41xx_set_irq_level(GD82559_2_PIN, IRQ_LEVEL_LOW);
 		irq = GD82559_2_IRQ;
 		break;
 	case 14:
 		switch (pin) {
 		case 1:
 			vr41xx_set_irq_trigger(UPD720100_INTA_PIN,
-					       TRIGGER_LEVEL,
+					       IRQ_TRIGGER_LEVEL,
-					       SIGNAL_THROUGH);
+					       IRQ_SIGNAL_THROUGH);
 			vr41xx_set_irq_level(UPD720100_INTA_PIN,
-					     LEVEL_LOW);
+					     IRQ_LEVEL_LOW);
 			irq = UPD720100_INTA_IRQ;
 			break;
 		case 2:
 			vr41xx_set_irq_trigger(UPD720100_INTB_PIN,
-					       TRIGGER_LEVEL,
+					       IRQ_TRIGGER_LEVEL,
-					       SIGNAL_THROUGH);
+					       IRQ_SIGNAL_THROUGH);
 			vr41xx_set_irq_level(UPD720100_INTB_PIN,
-					     LEVEL_LOW);
+					     IRQ_LEVEL_LOW);
 			irq = UPD720100_INTB_IRQ;
 			break;
 		case 3:
 			vr41xx_set_irq_trigger(UPD720100_INTC_PIN,
-					       TRIGGER_LEVEL,
+					       IRQ_TRIGGER_LEVEL,
-					       SIGNAL_THROUGH);
+					       IRQ_SIGNAL_THROUGH);
 			vr41xx_set_irq_level(UPD720100_INTC_PIN,
-					     LEVEL_LOW);
+					     IRQ_LEVEL_LOW);
 			irq = UPD720100_INTC_IRQ;
 			break;
 		default:

arch/ppc/kernel/cputable.c

@@ -91,7 +91,7 @@ struct cpu_spec	cpu_specs[] = {
 		.cpu_features		= CPU_FTR_COMMON | CPU_FTR_601 |
 			CPU_FTR_HPTE_TABLE,
 		.cpu_user_features 	= COMMON_PPC | PPC_FEATURE_601_INSTR |
-			PPC_FEATURE_UNIFIED_CACHE,
+			PPC_FEATURE_UNIFIED_CACHE | PPC_FEATURE_NO_TB,
 		.icache_bsize		= 32,
 		.dcache_bsize		= 32,
 		.cpu_setup		= __setup_cpu_601
@@ -745,7 +745,8 @@ struct cpu_spec	cpu_specs[] = {
 		.cpu_name		= "403GCX",
 		.cpu_features		= CPU_FTR_SPLIT_ID_CACHE |
 			CPU_FTR_USE_TB,
-		.cpu_user_features	= PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
+		.cpu_user_features	= PPC_FEATURE_32 |
+		 	PPC_FEATURE_HAS_MMU | PPC_FEATURE_NO_TB,
 		.icache_bsize		= 16,
 		.dcache_bsize		= 16,
 	},

arch/ppc/kernel/dma-mapping.c

@@ -401,10 +401,10 @@ EXPORT_SYMBOL(__dma_sync);
 static inline void __dma_sync_page_highmem(struct page *page,
 		unsigned long offset, size_t size, int direction)
 {
-	size_t seg_size = min((size_t)PAGE_SIZE, size) - offset;
+	size_t seg_size = min((size_t)(PAGE_SIZE - offset), size);
 	size_t cur_size = seg_size;
 	unsigned long flags, start, seg_offset = offset;
-	int nr_segs = PAGE_ALIGN(size + (PAGE_SIZE - offset))/PAGE_SIZE;
+	int nr_segs = 1 + ((size - seg_size) + PAGE_SIZE - 1)/PAGE_SIZE;
 	int seg_nr = 0;
 
 	local_irq_save(flags);

arch/ppc64/kernel/bpa_iommu.c

@@ -310,7 +310,7 @@ static void bpa_map_iommu(void)
 
 
 static void *bpa_alloc_coherent(struct device *hwdev, size_t size,
-			   dma_addr_t *dma_handle, unsigned int __nocast flag)
+			   dma_addr_t *dma_handle, gfp_t flag)
 {
 	void *ret;
 

arch/ppc64/kernel/dma.c

@@ -53,7 +53,7 @@ int dma_set_mask(struct device *dev, u64 dma_mask)
 EXPORT_SYMBOL(dma_set_mask);
 
 void *dma_alloc_coherent(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, unsigned int __nocast flag)
+		dma_addr_t *dma_handle, gfp_t flag)
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 

arch/ppc64/kernel/iommu.c

@@ -519,7 +519,7 @@ void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle,
  * to the dma address (mapping) of the first page.
  */
 void *iommu_alloc_coherent(struct iommu_table *tbl, size_t size,
-		dma_addr_t *dma_handle, unsigned int __nocast flag)
+		dma_addr_t *dma_handle, gfp_t flag)
 {
 	void *ret = NULL;
 	dma_addr_t mapping;

arch/ppc64/kernel/module.c

@@ -341,6 +341,19 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 			*(unsigned long *)location = my_r2(sechdrs, me);
 			break;
 
+		case R_PPC64_TOC16:
+			/* Subtact TOC pointer */
+			value -= my_r2(sechdrs, me);
+			if (value + 0x8000 > 0xffff) {
+				printk("%s: bad TOC16 relocation (%lu)\n",
+				       me->name, value);
+				return -ENOEXEC;
+			}
+			*((uint16_t *) location)
+				= (*((uint16_t *) location) & ~0xffff)
+				| (value & 0xffff);
+			break;
+
 		case R_PPC64_TOC16_DS:
 			/* Subtact TOC pointer */
 			value -= my_r2(sechdrs, me);

arch/ppc64/kernel/pSeries_pci.c

@@ -32,7 +32,7 @@
 
 #include "pci.h"
 
-static int __initdata s7a_workaround = -1;
+static int __devinitdata s7a_workaround = -1;
 
 #if 0
 void pcibios_name_device(struct pci_dev *dev)
@@ -60,7 +60,7 @@ void pcibios_name_device(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device);
 #endif
 
-static void __init check_s7a(void)
+static void __devinit check_s7a(void)
 {
 	struct device_node *root;
 	char *model;

arch/ppc64/kernel/pci_direct_iommu.c

@@ -31,7 +31,7 @@
 #include "pci.h"
 
 static void *pci_direct_alloc_coherent(struct device *hwdev, size_t size,
-				   dma_addr_t *dma_handle, unsigned int __nocast flag)
+				   dma_addr_t *dma_handle, gfp_t flag)
 {
 	void *ret;
 

arch/ppc64/kernel/pci_iommu.c

@@ -76,7 +76,7 @@ static inline struct iommu_table *devnode_table(struct device *dev)
  * to the dma address (mapping) of the first page.
  */
 static void *pci_iommu_alloc_coherent(struct device *hwdev, size_t size,
-			   dma_addr_t *dma_handle, unsigned int __nocast flag)
+			   dma_addr_t *dma_handle, gfp_t flag)
 {
 	return iommu_alloc_coherent(devnode_table(hwdev), size, dma_handle,
 			flag);

arch/ppc64/kernel/pmac_setup.c

@@ -115,7 +115,7 @@ static void __pmac pmac_show_cpuinfo(struct seq_file *m)
 	
 	/* find motherboard type */
 	seq_printf(m, "machine\t\t: ");
-	np = find_devices("device-tree");
+	np = of_find_node_by_path("/");
 	if (np != NULL) {
 		pp = (char *) get_property(np, "model", NULL);
 		if (pp != NULL)
@@ -133,6 +133,7 @@ static void __pmac pmac_show_cpuinfo(struct seq_file *m)
 			}
 			seq_printf(m, "\n");
 		}
+		of_node_put(np);
 	} else
 		seq_printf(m, "PowerMac\n");
 

arch/ppc64/kernel/vio.c

@@ -218,7 +218,7 @@ static void vio_unmap_sg(struct device *dev, struct scatterlist *sglist,
 }
 
 static void *vio_alloc_coherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, unsigned int __nocast flag)
+			   dma_addr_t *dma_handle, gfp_t flag)
 {
 	return iommu_alloc_coherent(to_vio_dev(dev)->iommu_table, size,
 			dma_handle, flag);

arch/sh/kernel/smp.c

@@ -22,6 +22,7 @@
 #include <linux/time.h>
 #include <linux/timex.h>
 #include <linux/sched.h>
+#include <linux/module.h>
 
 #include <asm/atomic.h>
 #include <asm/processor.h>
@@ -39,6 +40,8 @@ struct sh_cpuinfo cpu_data[NR_CPUS];
 extern void per_cpu_trap_init(void);
 
 cpumask_t cpu_possible_map;
+EXPORT_SYMBOL(cpu_possible_map);
+
 cpumask_t cpu_online_map;
 static atomic_t cpus_booted = ATOMIC_INIT(0);
 

arch/sparc64/kernel/dtlb_base.S

@@ -53,19 +53,18 @@
  * be guaranteed to be 0 ... mmu_context.h does guarantee this
  * by only using 10 bits in the hwcontext value.
  */
-#define CREATE_VPTE_OFFSET1(r1, r2)
+#define CREATE_VPTE_OFFSET1(r1, r2) nop
 #define CREATE_VPTE_OFFSET2(r1, r2) \
 				srax	r1, 10, r2
-#define CREATE_VPTE_NOP		nop
 #else
 #define CREATE_VPTE_OFFSET1(r1, r2) \
 				srax	r1, PAGE_SHIFT, r2
 #define CREATE_VPTE_OFFSET2(r1, r2) \
 				sllx	r2, 3, r2
-#define CREATE_VPTE_NOP
 #endif
 
 /* DTLB ** ICACHE line 1: Quick user TLB misses		*/
+	mov		TLB_SFSR, %g1
 	ldxa		[%g1 + %g1] ASI_DMMU, %g4	! Get TAG_ACCESS
 	andcc		%g4, TAG_CONTEXT_BITS, %g0	! From Nucleus?
 from_tl1_trap:
@@ -74,18 +73,16 @@ from_tl1_trap:
 	be,pn		%xcc, kvmap			! Yep, special processing
 	 CREATE_VPTE_OFFSET2(%g4, %g6)			! Create VPTE offset
 	cmp		%g5, 4				! Last trap level?
-	be,pn		%xcc, longpath			! Yep, cannot risk VPTE miss
-	 nop						! delay slot
 
 /* DTLB ** ICACHE line 2: User finish + quick kernel TLB misses	*/
+	be,pn		%xcc, longpath			! Yep, cannot risk VPTE miss
+	 nop						! delay slot
 	ldxa		[%g3 + %g6] ASI_S, %g5		! Load VPTE
 1:	brgez,pn	%g5, longpath			! Invalid, branch out
 	 nop						! Delay-slot
 9:	stxa		%g5, [%g0] ASI_DTLB_DATA_IN	! Reload TLB
 	retry						! Trap return
 	nop
-	nop
-	nop
 
 /* DTLB ** ICACHE line 3: winfixups+real_faults		*/
 longpath:
@@ -106,8 +103,7 @@ longpath:
 	nop
 	nop
 	nop
-	CREATE_VPTE_NOP
+	nop
 
 #undef CREATE_VPTE_OFFSET1
 #undef CREATE_VPTE_OFFSET2
-#undef CREATE_VPTE_NOP

arch/sparc64/kernel/dtlb_prot.S

@@ -14,14 +14,14 @@
  */
 
 /* PROT ** ICACHE line 1: User DTLB protection trap	*/
-	stxa		%g0, [%g1] ASI_DMMU		! Clear SFSR FaultValid bit
+	mov		TLB_SFSR, %g1
-	membar		#Sync				! Synchronize ASI stores
+	stxa		%g0, [%g1] ASI_DMMU		! Clear FaultValid bit
-	rdpr		%pstate, %g5			! Move into alternate globals
+	membar		#Sync				! Synchronize stores
+	rdpr		%pstate, %g5			! Move into alt-globals
 	wrpr		%g5, PSTATE_AG|PSTATE_MG, %pstate
-	rdpr		%tl, %g1			! Need to do a winfixup?
+	rdpr		%tl, %g1			! Need a winfixup?
 	cmp		%g1, 1				! Trap level >1?
-	mov		TLB_TAG_ACCESS, %g4		! Prepare reload of vaddr
+	mov		TLB_TAG_ACCESS, %g4		! For reload of vaddr
-	nop
 
 /* PROT ** ICACHE line 2: More real fault processing */
 	bgu,pn		%xcc, winfix_trampoline		! Yes, perform winfixup

arch/sparc64/kernel/entry.S

@@ -33,7 +33,7 @@
 	/* This is trivial with the new code... */
 	.globl		do_fpdis
 do_fpdis:
-	sethi		%hi(TSTATE_PEF), %g4					! IEU0
+	sethi		%hi(TSTATE_PEF), %g4
 	rdpr		%tstate, %g5
 	andcc		%g5, %g4, %g0
 	be,pt		%xcc, 1f
@@ -50,18 +50,18 @@ do_fpdis:
 	add		%g0, %g0, %g0
 	ba,a,pt		%xcc, rtrap_clr_l6
 
-1:	ldub		[%g6 + TI_FPSAVED], %g5					! Load	Group
+1:	ldub		[%g6 + TI_FPSAVED], %g5
-	wr		%g0, FPRS_FEF, %fprs					! LSU	Group+4bubbles
+	wr		%g0, FPRS_FEF, %fprs
-	andcc		%g5, FPRS_FEF, %g0					! IEU1	Group
+	andcc		%g5, FPRS_FEF, %g0
-	be,a,pt		%icc, 1f						! CTI
+	be,a,pt		%icc, 1f
-	 clr		%g7							! IEU0
+	 clr		%g7
-	ldx		[%g6 + TI_GSR], %g7					! Load	Group
+	ldx		[%g6 + TI_GSR], %g7
-1:	andcc		%g5, FPRS_DL, %g0					! IEU1
+1:	andcc		%g5, FPRS_DL, %g0
-	bne,pn		%icc, 2f						! CTI
+	bne,pn		%icc, 2f
-	 fzero		%f0							! FPA
+	 fzero		%f0
-	andcc		%g5, FPRS_DU, %g0					! IEU1  Group
+	andcc		%g5, FPRS_DU, %g0
-	bne,pn		%icc, 1f						! CTI
+	bne,pn		%icc, 1f
-	 fzero		%f2							! FPA
+	 fzero		%f2
 	faddd		%f0, %f2, %f4
 	fmuld		%f0, %f2, %f6
 	faddd		%f0, %f2, %f8
@@ -104,8 +104,10 @@ do_fpdis:
 	add		%g6, TI_FPREGS + 0xc0, %g2
 	faddd		%f0, %f2, %f8
 	fmuld		%f0, %f2, %f10
-	ldda		[%g1] ASI_BLK_S, %f32	! grrr, where is ASI_BLK_NUCLEUS 8-(
+	membar		#Sync
+	ldda		[%g1] ASI_BLK_S, %f32
 	ldda		[%g2] ASI_BLK_S, %f48
+	membar		#Sync
 	faddd		%f0, %f2, %f12
 	fmuld		%f0, %f2, %f14
 	faddd		%f0, %f2, %f16
@@ -116,7 +118,6 @@ do_fpdis:
 	fmuld		%f0, %f2, %f26
 	faddd		%f0, %f2, %f28
 	fmuld		%f0, %f2, %f30
-	membar		#Sync
 	b,pt		%xcc, fpdis_exit
 	 nop
 2:	andcc		%g5, FPRS_DU, %g0
@@ -133,8 +134,10 @@ do_fpdis:
 	add		%g6, TI_FPREGS + 0x40, %g2
 	faddd		%f32, %f34, %f36
 	fmuld		%f32, %f34, %f38
-	ldda		[%g1] ASI_BLK_S, %f0	! grrr, where is ASI_BLK_NUCLEUS 8-(
+	membar		#Sync
+	ldda		[%g1] ASI_BLK_S, %f0
 	ldda		[%g2] ASI_BLK_S, %f16
+	membar		#Sync
 	faddd		%f32, %f34, %f40
 	fmuld		%f32, %f34, %f42
 	faddd		%f32, %f34, %f44
@@ -147,7 +150,6 @@ do_fpdis:
 	fmuld		%f32, %f34, %f58
 	faddd		%f32, %f34, %f60
 	fmuld		%f32, %f34, %f62
-	membar		#Sync
 	ba,pt		%xcc, fpdis_exit
 	 nop
 3:	mov		SECONDARY_CONTEXT, %g3
@@ -158,7 +160,8 @@ do_fpdis:
 	stxa		%g2, [%g3] ASI_DMMU
 	membar		#Sync
 	mov		0x40, %g2
-	ldda		[%g1] ASI_BLK_S, %f0		! grrr, where is ASI_BLK_NUCLEUS 8-(
+	membar		#Sync
+	ldda		[%g1] ASI_BLK_S, %f0
 	ldda		[%g1 + %g2] ASI_BLK_S, %f16
 	add		%g1, 0x80, %g1
 	ldda		[%g1] ASI_BLK_S, %f32

arch/sparc64/kernel/head.S

@@ -28,19 +28,14 @@
 #include <asm/mmu.h>
 	
 /* This section from from _start to sparc64_boot_end should fit into
- * 0x0000.0000.0040.4000 to 0x0000.0000.0040.8000 and will be sharing space
+ * 0x0000000000404000 to 0x0000000000408000.
- * with bootup_user_stack, which is from 0x0000.0000.0040.4000 to
- * 0x0000.0000.0040.6000 and empty_bad_page, which is from
- * 0x0000.0000.0040.6000 to 0x0000.0000.0040.8000. 
  */
-
 	.text
 	.globl	start, _start, stext, _stext
 _start:
 start:
 _stext:
 stext:
-bootup_user_stack:
 ! 0x0000000000404000
 	b	sparc64_boot
 	 flushw					/* Flush register file.      */
@@ -191,8 +186,9 @@ prom_boot_mapping_phys_low:
 	stx	%l3, [%sp + 2047 + 128 + 0x10]	! num_rets, 5
 	stx	%l2, [%sp + 2047 + 128 + 0x18]	! arg1: "translate"
 	stx	%l5, [%sp + 2047 + 128 + 0x20]	! arg2: prom_mmu_ihandle_cache
-	srlx	%l0, 22, %l3
+	/* PAGE align */
-	sllx	%l3, 22, %l3
+	srlx	%l0, 13, %l3
+	sllx	%l3, 13, %l3
 	stx	%l3, [%sp + 2047 + 128 + 0x28]	! arg3: vaddr, our PC
 	stx	%g0, [%sp + 2047 + 128 + 0x30]	! res1
 	stx	%g0, [%sp + 2047 + 128 + 0x38]	! res2
@@ -211,6 +207,9 @@ prom_boot_mapping_phys_low:
 	ldx	[%sp + 2047 + 128 + 0x48], %l2	! physaddr high
 	stx	%l2, [%l4 + 0x0]
 	ldx	[%sp + 2047 + 128 + 0x50], %l3	! physaddr low
+	/* 4MB align */
+	srlx	%l3, 22, %l3
+	sllx	%l3, 22, %l3
 	stx	%l3, [%l4 + 0x8]
 
 	/* Leave service as-is, "call-method" */
@@ -382,32 +381,78 @@ tlb_fixup_done:
 	 nop
 	/* Not reached... */
 
-/* IMPORTANT NOTE: Whenever making changes here, check
+	/* This is meant to allow the sharing of this code between
- * trampoline.S as well. -jj */
+	 * boot processor invocation (via setup_tba() below) and
-	.globl	setup_tba
+	 * secondary processor startup (via trampoline.S).  The
-setup_tba:	/* i0 = is_starfire */
+	 * former does use this code, the latter does not yet due
-	save	%sp, -160, %sp
+	 * to some complexities.  That should be fixed up at some
+	 * point.
+	 *
+	 * There used to be enormous complexity wrt. transferring
+	 * over from the firwmare's trap table to the Linux kernel's.
+	 * For example, there was a chicken & egg problem wrt. building
+	 * the OBP page tables, yet needing to be on the Linux kernel
+	 * trap table (to translate PAGE_OFFSET addresses) in order to
+	 * do that.
+	 *
+	 * We now handle OBP tlb misses differently, via linear lookups
+	 * into the prom_trans[] array.  So that specific problem no
+	 * longer exists.  Yet, unfortunately there are still some issues
+	 * preventing trampoline.S from using this code... ho hum.
+	 */
+	.globl	setup_trap_table
+setup_trap_table:
+	save	%sp, -192, %sp
 
-	rdpr	%tba, %g7
+	/* Force interrupts to be disabled. */
-	sethi	%hi(prom_tba), %o1
+	rdpr	%pstate, %o1
-	or	%o1, %lo(prom_tba), %o1
+	andn	%o1, PSTATE_IE, %o1
-	stx	%g7, [%o1]
+	wrpr	%o1, 0x0, %pstate
+	wrpr	%g0, 15, %pil
+
+	/* Make the firmware call to jump over to the Linux trap table.  */
+	call	prom_set_trap_table
+	 sethi	%hi(sparc64_ttable_tl0), %o0
+
+	/* Start using proper page size encodings in ctx register.  */
+	sethi	%hi(sparc64_kern_pri_context), %g3
+	ldx	[%g3 + %lo(sparc64_kern_pri_context)], %g2
+	mov	PRIMARY_CONTEXT, %g1
+	stxa	%g2, [%g1] ASI_DMMU
+	membar	#Sync
+
+	/* The Linux trap handlers expect various trap global registers
+	 * to be setup with some fixed values.  So here we set these
+	 * up very carefully.  These globals are:
+	 *
+	 * Alternate Globals (PSTATE_AG):
+	 *
+	 * %g6			--> current_thread_info()
+	 *
+	 * MMU Globals (PSTATE_MG):
+	 *
+	 * %g1			--> TLB_SFSR
+	 * %g2			--> ((_PAGE_VALID | _PAGE_SZ4MB |
+	 *			      _PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_W)
+	 *			     ^ 0xfffff80000000000)
+	 * (this %g2 value is used for computing the PAGE_OFFSET kernel
+	 *  TLB entries quickly, the virtual address of the fault XOR'd
+	 *  with this %g2 value is the PTE to load into the TLB)
+	 * %g3			--> VPTE_BASE_CHEETAH or VPTE_BASE_SPITFIRE
+	 *
+	 * Interrupt Globals (PSTATE_IG, setup by init_irqwork_curcpu()):
+	 *
+	 * %g6			--> __irq_work[smp_processor_id()]
+	 */
 
-	/* Setup "Linux" globals 8-) */
 	rdpr	%pstate, %o1
 	mov	%g6, %o2
-	wrpr	%o1, (PSTATE_AG|PSTATE_IE), %pstate
+	wrpr	%o1, PSTATE_AG, %pstate
-	sethi	%hi(sparc64_ttable_tl0), %g1
-	wrpr	%g1, %tba
 	mov	%o2, %g6
 
-	/* Set up MMU globals */
-	wrpr	%o1, (PSTATE_MG|PSTATE_IE), %pstate
-
-	/* Set fixed globals used by dTLB miss handler. */
 #define KERN_HIGHBITS		((_PAGE_VALID|_PAGE_SZ4MB)^0xfffff80000000000)
 #define KERN_LOWBITS		(_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_W)
-
+	wrpr	%o1, PSTATE_MG, %pstate
 	mov	TSB_REG, %g1
 	stxa	%g0, [%g1] ASI_DMMU
 	membar	#Sync
@@ -419,17 +464,17 @@ setup_tba:	/* i0 = is_starfire */
 	sllx	%g2, 32, %g2
 	or	%g2, KERN_LOWBITS, %g2
 
-	BRANCH_IF_ANY_CHEETAH(g3,g7,cheetah_vpte_base)
+	BRANCH_IF_ANY_CHEETAH(g3,g7,8f)
-	ba,pt	%xcc, spitfire_vpte_base
+	ba,pt	%xcc, 9f
 	 nop
 
-cheetah_vpte_base:
+8:
 	sethi		%uhi(VPTE_BASE_CHEETAH), %g3
 	or		%g3, %ulo(VPTE_BASE_CHEETAH), %g3
 	ba,pt		%xcc, 2f
 	 sllx		%g3, 32, %g3
 
-spitfire_vpte_base:
+9:
 	sethi		%uhi(VPTE_BASE_SPITFIRE), %g3
 	or		%g3, %ulo(VPTE_BASE_SPITFIRE), %g3
 	sllx		%g3, 32, %g3
@@ -455,41 +500,55 @@ spitfire_vpte_base:
 	sllx	%o2, 32, %o2
 	wr	%o2, %asr25
 
-	/* Ok, we're done setting up all the state our trap mechanims needs,
-	 * now get back into normal globals and let the PROM know what is up.
-	 */
 2:
 	wrpr	%g0, %g0, %wstate
-	wrpr	%o1, PSTATE_IE, %pstate
+	wrpr	%o1, 0x0, %pstate
 
 	call	init_irqwork_curcpu
 	 nop
 
-	call	prom_set_trap_table
+	/* Now we can turn interrupts back on. */
-	 sethi	%hi(sparc64_ttable_tl0), %o0
-
-	/* Start using proper page size encodings in ctx register.  */
-	sethi	%hi(sparc64_kern_pri_context), %g3
-	ldx	[%g3 + %lo(sparc64_kern_pri_context)], %g2
-	mov	PRIMARY_CONTEXT, %g1
-	stxa	%g2, [%g1] ASI_DMMU
-	membar	#Sync
-
 	rdpr	%pstate, %o1
 	or	%o1, PSTATE_IE, %o1
 	wrpr	%o1, 0, %pstate
+	wrpr	%g0, 0x0, %pil
 
 	ret
 	 restore
 
+	.globl	setup_tba
+setup_tba:	/* i0 = is_starfire */
+	save	%sp, -192, %sp
+
+	/* The boot processor is the only cpu which invokes this
+	 * routine, the other cpus set things up via trampoline.S.
+	 * So save the OBP trap table address here.
+	 */
+	rdpr	%tba, %g7
+	sethi	%hi(prom_tba), %o1
+	or	%o1, %lo(prom_tba), %o1
+	stx	%g7, [%o1]
+
+	call	setup_trap_table
+	 nop
+
+	ret
+	 restore
+sparc64_boot_end:
+
+#include "systbls.S"
+#include "ktlb.S"
+#include "etrap.S"
+#include "rtrap.S"
+#include "winfixup.S"
+#include "entry.S"
+
 /*
- * The following skips make sure the trap table in ttable.S is aligned
+ * The following skip makes sure the trap table in ttable.S is aligned
  * on a 32K boundary as required by the v9 specs for TBA register.
  */
-sparc64_boot_end:
+1:
-	.skip	0x2000 + _start - sparc64_boot_end
+	.skip	0x4000 + _start - 1b
-bootup_user_stack_end:
-	.skip	0x2000
 
 #ifdef CONFIG_SBUS
 /* This is just a hack to fool make depend config.h discovering
@@ -501,15 +560,6 @@ bootup_user_stack_end:
 ! 0x0000000000408000
 
 #include "ttable.S"
-#include "systbls.S"
-#include "ktlb.S"
-#include "etrap.S"
-#include "rtrap.S"
-#include "winfixup.S"
-#include "entry.S"
-
-	/* This is just anal retentiveness on my part... */
-	.align	16384
 
 	.data
 	.align	8

arch/sparc64/kernel/irq.c

@@ -27,6 +27,7 @@
 #include <asm/atomic.h>
 #include <asm/system.h>
 #include <asm/irq.h>
+#include <asm/io.h>
 #include <asm/sbus.h>
 #include <asm/iommu.h>
 #include <asm/upa.h>

arch/sparc64/kernel/itlb_base.S

@@ -15,14 +15,12 @@
  */
 #define CREATE_VPTE_OFFSET1(r1, r2) \
 				srax	r1, 10, r2
-#define CREATE_VPTE_OFFSET2(r1, r2)
+#define CREATE_VPTE_OFFSET2(r1, r2) nop
-#define CREATE_VPTE_NOP		nop
 #else /* PAGE_SHIFT */
 #define CREATE_VPTE_OFFSET1(r1, r2) \
 				srax	r1, PAGE_SHIFT, r2
 #define CREATE_VPTE_OFFSET2(r1, r2) \
 				sllx	r2, 3, r2
-#define CREATE_VPTE_NOP
 #endif /* PAGE_SHIFT */
 
 
@@ -36,6 +34,7 @@
  */
 
 /* ITLB ** ICACHE line 1: Quick user TLB misses		*/
+	mov		TLB_SFSR, %g1
 	ldxa		[%g1 + %g1] ASI_IMMU, %g4	! Get TAG_ACCESS
 	CREATE_VPTE_OFFSET1(%g4, %g6)			! Create VPTE offset
 	CREATE_VPTE_OFFSET2(%g4, %g6)			! Create VPTE offset
@@ -43,41 +42,38 @@
 1:	brgez,pn	%g5, 3f				! Not valid, branch out
 	 sethi		%hi(_PAGE_EXEC), %g4		! Delay-slot
 	andcc		%g5, %g4, %g0			! Executable?
+
+/* ITLB ** ICACHE line 2: Real faults			*/
 	be,pn		%xcc, 3f			! Nope, branch.
 	 nop						! Delay-slot
 2:	stxa		%g5, [%g0] ASI_ITLB_DATA_IN	! Load PTE into TLB
 	retry						! Trap return
-3:	rdpr		%pstate, %g4			! Move into alternate globals
+3:	rdpr		%pstate, %g4			! Move into alt-globals
-
-/* ITLB ** ICACHE line 2: Real faults			*/
 	wrpr		%g4, PSTATE_AG|PSTATE_MG, %pstate
 	rdpr		%tpc, %g5			! And load faulting VA
 	mov		FAULT_CODE_ITLB, %g4		! It was read from ITLB
-sparc64_realfault_common:				! Called by TL0 dtlb_miss too
+
+/* ITLB ** ICACHE line 3: Finish faults	*/
+sparc64_realfault_common:				! Called by dtlb_miss
 	stb		%g4, [%g6 + TI_FAULT_CODE]
 	stx		%g5, [%g6 + TI_FAULT_ADDR]
 	ba,pt		%xcc, etrap			! Save state
 1:	 rd		%pc, %g7			! ...
-	nop
-
-/* ITLB ** ICACHE line 3: Finish faults + window fixups	*/
 	call		do_sparc64_fault		! Call fault handler
 	 add		%sp, PTREGS_OFF, %o0! Compute pt_regs arg
 	ba,pt		%xcc, rtrap_clr_l6		! Restore cpu state
 	 nop
+
+/* ITLB ** ICACHE line 4: Window fixups */
 winfix_trampoline:
 	rdpr		%tpc, %g3			! Prepare winfixup TNPC
-	or		%g3, 0x7c, %g3			! Compute offset to branch
+	or		%g3, 0x7c, %g3			! Compute branch offset
 	wrpr		%g3, %tnpc			! Write it into TNPC
 	done						! Do it to it
-
-/* ITLB ** ICACHE line 4: Unused...	*/
 	nop
 	nop
 	nop
 	nop
-	CREATE_VPTE_NOP
 
 #undef CREATE_VPTE_OFFSET1
 #undef CREATE_VPTE_OFFSET2
-#undef CREATE_VPTE_NOP

arch/sparc64/kernel/ktlb.S

@@ -58,9 +58,6 @@ vpte_noent:
 	done
 
 vpte_insn_obp:
-	sethi		%hi(prom_pmd_phys), %g5
-	ldx		[%g5 + %lo(prom_pmd_phys)], %g5
-
 	/* Behave as if we are at TL0.  */
 	wrpr		%g0, 1, %tl
 	rdpr		%tpc, %g4	/* Find original faulting iaddr */
@@ -71,58 +68,57 @@ vpte_insn_obp:
 	mov		TLB_SFSR, %g1
 	stxa		%g4, [%g1 + %g1] ASI_IMMU
 
-	/* Get PMD offset.  */
+	sethi		%hi(prom_trans), %g5
-	srlx		%g4, 23, %g6
+	or		%g5, %lo(prom_trans), %g5
-	and		%g6, 0x7ff, %g6
-	sllx		%g6, 2, %g6
 
-	/* Load PMD, is it valid?  */
+1:	ldx		[%g5 + 0x00], %g6	! base
-	lduwa		[%g5 + %g6] ASI_PHYS_USE_EC, %g5
+	brz,a,pn	%g6, longpath		! no more entries, fail
-	brz,pn		%g5, longpath
+	 mov		TLB_SFSR, %g1		! and restore %g1
-	 sllx		%g5, 11, %g5
+	ldx		[%g5 + 0x08], %g1	! len
+	add		%g6, %g1, %g1		! end
+	cmp		%g6, %g4
+	bgu,pt		%xcc, 2f
+	 cmp		%g4, %g1
+	bgeu,pt		%xcc, 2f
+	 ldx		[%g5 + 0x10], %g1	! PTE
 
-	/* Get PTE offset.  */
+	/* TLB load, restore %g1, and return from trap.  */
-	srlx		%g4, 13, %g6
+	sub		%g4, %g6, %g6
-	and		%g6, 0x3ff, %g6
+	add		%g1, %g6, %g5
-	sllx		%g6, 3, %g6
+	mov		TLB_SFSR, %g1
-
-	/* Load PTE.  */
-	ldxa		[%g5 + %g6] ASI_PHYS_USE_EC, %g5
-	brgez,pn	%g5, longpath
-	 nop
-
-	/* TLB load and return from trap.  */
 	stxa		%g5, [%g0] ASI_ITLB_DATA_IN
 	retry
 
+2:	ba,pt		%xcc, 1b
+	 add		%g5, (3 * 8), %g5	! next entry
+
 kvmap_do_obp:
-	sethi		%hi(prom_pmd_phys), %g5
+	sethi		%hi(prom_trans), %g5
-	ldx		[%g5 + %lo(prom_pmd_phys)], %g5
+	or		%g5, %lo(prom_trans), %g5
+	srlx		%g4, 13, %g4
+	sllx		%g4, 13, %g4
 
-	/* Get PMD offset.  */
+1:	ldx		[%g5 + 0x00], %g6	! base
-	srlx		%g4, 23, %g6
+	brz,a,pn	%g6, longpath		! no more entries, fail
-	and		%g6, 0x7ff, %g6
+	 mov		TLB_SFSR, %g1		! and restore %g1
-	sllx		%g6, 2, %g6
+	ldx		[%g5 + 0x08], %g1	! len
+	add		%g6, %g1, %g1		! end
+	cmp		%g6, %g4
+	bgu,pt		%xcc, 2f
+	 cmp		%g4, %g1
+	bgeu,pt		%xcc, 2f
+	 ldx		[%g5 + 0x10], %g1	! PTE
 
-	/* Load PMD, is it valid?  */
+	/* TLB load, restore %g1, and return from trap.  */
-	lduwa		[%g5 + %g6] ASI_PHYS_USE_EC, %g5
+	sub		%g4, %g6, %g6
-	brz,pn		%g5, longpath
+	add		%g1, %g6, %g5
-	 sllx		%g5, 11, %g5
+	mov		TLB_SFSR, %g1
-
-	/* Get PTE offset.  */
-	srlx		%g4, 13, %g6
-	and		%g6, 0x3ff, %g6
-	sllx		%g6, 3, %g6
-
-	/* Load PTE.  */
-	ldxa		[%g5 + %g6] ASI_PHYS_USE_EC, %g5
-	brgez,pn	%g5, longpath
-	 nop
-
-	/* TLB load and return from trap.  */
 	stxa		%g5, [%g0] ASI_DTLB_DATA_IN
 	retry
 
+2:	ba,pt		%xcc, 1b
+	 add		%g5, (3 * 8), %g5	! next entry
+
 /*
  * On a first level data miss, check whether this is to the OBP range (note
  * that such accesses can be made by prom, as well as by kernel using

arch/sparc64/kernel/pci_iommu.c

@@ -49,12 +49,6 @@ static void __iommu_flushall(struct pci_iommu *iommu)
 
 	/* Ensure completion of previous PIO writes. */
 	(void) pci_iommu_read(iommu->write_complete_reg);
-
-	/* Now update everyone's flush point. */
-	for (entry = 0; entry < PBM_NCLUSTERS; entry++) {
-		iommu->alloc_info[entry].flush =
-			iommu->alloc_info[entry].next;
-	}
 }
 
 #define IOPTE_CONSISTENT(CTX) \
@@ -80,120 +74,117 @@ static void inline iopte_make_dummy(struct pci_iommu *iommu, iopte_t *iopte)
 	iopte_val(*iopte) = val;
 }
 
-void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize)
+/* Based largely upon the ppc64 iommu allocator.  */
+static long pci_arena_alloc(struct pci_iommu *iommu, unsigned long npages)
 {
-	int i;
+	struct pci_iommu_arena *arena = &iommu->arena;
+	unsigned long n, i, start, end, limit;
+	int pass;
 
-	tsbsize /= sizeof(iopte_t);
+	limit = arena->limit;
+	start = arena->hint;
+	pass = 0;
 
-	for (i = 0; i < tsbsize; i++)
+again:
+	n = find_next_zero_bit(arena->map, limit, start);
+	end = n + npages;
+	if (unlikely(end >= limit)) {
+		if (likely(pass < 1)) {
+			limit = start;
+			start = 0;
+			__iommu_flushall(iommu);
+			pass++;
+			goto again;
+		} else {
+			/* Scanned the whole thing, give up. */
+			return -1;
+		}
+	}
+
+	for (i = n; i < end; i++) {
+		if (test_bit(i, arena->map)) {
+			start = i + 1;
+			goto again;
+		}
+	}
+
+	for (i = n; i < end; i++)
+		__set_bit(i, arena->map);
+
+	arena->hint = end;
+
+	return n;
+}
+
+static void pci_arena_free(struct pci_iommu_arena *arena, unsigned long base, unsigned long npages)
+{
+	unsigned long i;
+
+	for (i = base; i < (base + npages); i++)
+		__clear_bit(i, arena->map);
+}
+
+void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask)
+{
+	unsigned long i, tsbbase, order, sz, num_tsb_entries;
+
+	num_tsb_entries = tsbsize / sizeof(iopte_t);
+
+	/* Setup initial software IOMMU state. */
+	spin_lock_init(&iommu->lock);
+	iommu->ctx_lowest_free = 1;
+	iommu->page_table_map_base = dma_offset;
+	iommu->dma_addr_mask = dma_addr_mask;
+
+	/* Allocate and initialize the free area map.  */
+	sz = num_tsb_entries / 8;
+	sz = (sz + 7UL) & ~7UL;
+	iommu->arena.map = kmalloc(sz, GFP_KERNEL);
+	if (!iommu->arena.map) {
+		prom_printf("PCI_IOMMU: Error, kmalloc(arena.map) failed.\n");
+		prom_halt();
+	}
+	memset(iommu->arena.map, 0, sz);
+	iommu->arena.limit = num_tsb_entries;
+
+	/* Allocate and initialize the dummy page which we
+	 * set inactive IO PTEs to point to.
+	 */
+	iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
+	if (!iommu->dummy_page) {
+		prom_printf("PCI_IOMMU: Error, gfp(dummy_page) failed.\n");
+		prom_halt();
+	}
+	memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
+	iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
+
+	/* Now allocate and setup the IOMMU page table itself.  */
+	order = get_order(tsbsize);
+	tsbbase = __get_free_pages(GFP_KERNEL, order);
+	if (!tsbbase) {
+		prom_printf("PCI_IOMMU: Error, gfp(tsb) failed.\n");
+		prom_halt();
+	}
+	iommu->page_table = (iopte_t *)tsbbase;
+
+	for (i = 0; i < num_tsb_entries; i++)
 		iopte_make_dummy(iommu, &iommu->page_table[i]);
 }
 
-static iopte_t *alloc_streaming_cluster(struct pci_iommu *iommu, unsigned long npages)
+static inline iopte_t *alloc_npages(struct pci_iommu *iommu, unsigned long npages)
 {
-	iopte_t *iopte, *limit, *first;
+	long entry;
-	unsigned long cnum, ent, flush_point;
 
-	cnum = 0;
+	entry = pci_arena_alloc(iommu, npages);
-	while ((1UL << cnum) < npages)
+	if (unlikely(entry < 0))
-		cnum++;
+		return NULL;
-	iopte  = (iommu->page_table +
-		  (cnum << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
 
-	if (cnum == 0)
+	return iommu->page_table + entry;
-		limit = (iommu->page_table +
-			 iommu->lowest_consistent_map);
-	else
-		limit = (iopte +
-			 (1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
-
-	iopte += ((ent = iommu->alloc_info[cnum].next) << cnum);
-	flush_point = iommu->alloc_info[cnum].flush;
-	
-	first = iopte;
-	for (;;) {
-		if (IOPTE_IS_DUMMY(iommu, iopte)) {
-			if ((iopte + (1 << cnum)) >= limit)
-				ent = 0;
-			else
-				ent = ent + 1;
-			iommu->alloc_info[cnum].next = ent;
-			if (ent == flush_point)
-				__iommu_flushall(iommu);
-			break;
-		}
-		iopte += (1 << cnum);
-		ent++;
-		if (iopte >= limit) {
-			iopte = (iommu->page_table +
-				 (cnum <<
-				  (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
-			ent = 0;
-		}
-		if (ent == flush_point)
-			__iommu_flushall(iommu);
-		if (iopte == first)
-			goto bad;
-	}
-
-	/* I've got your streaming cluster right here buddy boy... */
-	return iopte;
-
-bad:
-	printk(KERN_EMERG "pci_iommu: alloc_streaming_cluster of npages(%ld) failed!\n",
-	       npages);
-	return NULL;
 }
 
-static void free_streaming_cluster(struct pci_iommu *iommu, dma_addr_t base,
+static inline void free_npages(struct pci_iommu *iommu, dma_addr_t base, unsigned long npages)
-				   unsigned long npages, unsigned long ctx)
 {
-	unsigned long cnum, ent;
+	pci_arena_free(&iommu->arena, base >> IO_PAGE_SHIFT, npages);
-
-	cnum = 0;
-	while ((1UL << cnum) < npages)
-		cnum++;
-
-	ent = (base << (32 - IO_PAGE_SHIFT + PBM_LOGCLUSTERS - iommu->page_table_sz_bits))
-		>> (32 + PBM_LOGCLUSTERS + cnum - iommu->page_table_sz_bits);
-
-	/* If the global flush might not have caught this entry,
-	 * adjust the flush point such that we will flush before
-	 * ever trying to reuse it.
-	 */
-#define between(X,Y,Z)	(((Z) - (Y)) >= ((X) - (Y)))
-	if (between(ent, iommu->alloc_info[cnum].next, iommu->alloc_info[cnum].flush))
-		iommu->alloc_info[cnum].flush = ent;
-#undef between
-}
-
-/* We allocate consistent mappings from the end of cluster zero. */
-static iopte_t *alloc_consistent_cluster(struct pci_iommu *iommu, unsigned long npages)
-{
-	iopte_t *iopte;
-
-	iopte = iommu->page_table + (1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS));
-	while (iopte > iommu->page_table) {
-		iopte--;
-		if (IOPTE_IS_DUMMY(iommu, iopte)) {
-			unsigned long tmp = npages;
-
-			while (--tmp) {
-				iopte--;
-				if (!IOPTE_IS_DUMMY(iommu, iopte))
-					break;
-			}
-			if (tmp == 0) {
-				u32 entry = (iopte - iommu->page_table);
-
-				if (entry < iommu->lowest_consistent_map)
-					iommu->lowest_consistent_map = entry;
-				return iopte;
-			}
-		}
-	}
-	return NULL;
 }
 
 static int iommu_alloc_ctx(struct pci_iommu *iommu)
@@ -233,7 +224,7 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad
 	struct pcidev_cookie *pcp;
 	struct pci_iommu *iommu;
 	iopte_t *iopte;
-	unsigned long flags, order, first_page, ctx;
+	unsigned long flags, order, first_page;
 	void *ret;
 	int npages;
 
@@ -251,9 +242,10 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad
 	iommu = pcp->pbm->iommu;
 
 	spin_lock_irqsave(&iommu->lock, flags);
-	iopte = alloc_consistent_cluster(iommu, size >> IO_PAGE_SHIFT);
+	iopte = alloc_npages(iommu, size >> IO_PAGE_SHIFT);
-	if (iopte == NULL) {
+	spin_unlock_irqrestore(&iommu->lock, flags);
-		spin_unlock_irqrestore(&iommu->lock, flags);
+
+	if (unlikely(iopte == NULL)) {
 		free_pages(first_page, order);
 		return NULL;
 	}
@@ -262,31 +254,15 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad
 		      ((iopte - iommu->page_table) << IO_PAGE_SHIFT));
 	ret = (void *) first_page;
 	npages = size >> IO_PAGE_SHIFT;
-	ctx = 0;
-	if (iommu->iommu_ctxflush)
-		ctx = iommu_alloc_ctx(iommu);
 	first_page = __pa(first_page);
 	while (npages--) {
-		iopte_val(*iopte) = (IOPTE_CONSISTENT(ctx) |
+		iopte_val(*iopte) = (IOPTE_CONSISTENT(0UL) |
 				     IOPTE_WRITE |
 				     (first_page & IOPTE_PAGE));
 		iopte++;
 		first_page += IO_PAGE_SIZE;
 	}
 
-	{
-		int i;
-		u32 daddr = *dma_addrp;
-
-		npages = size >> IO_PAGE_SHIFT;
-		for (i = 0; i < npages; i++) {
-			pci_iommu_write(iommu->iommu_flush, daddr);
-			daddr += IO_PAGE_SIZE;
-		}
-	}
-
-	spin_unlock_irqrestore(&iommu->lock, flags);
-
 	return ret;
 }
 
@@ -296,7 +272,7 @@ void pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_
 	struct pcidev_cookie *pcp;
 	struct pci_iommu *iommu;
 	iopte_t *iopte;
-	unsigned long flags, order, npages, i, ctx;
+	unsigned long flags, order, npages;
 
 	npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT;
 	pcp = pdev->sysdata;
@@ -306,46 +282,7 @@ void pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_
 
 	spin_lock_irqsave(&iommu->lock, flags);
 
-	if ((iopte - iommu->page_table) ==
+	free_npages(iommu, dvma, npages);
-	    iommu->lowest_consistent_map) {
-		iopte_t *walk = iopte + npages;
-		iopte_t *limit;
-
-		limit = (iommu->page_table +
-			 (1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
-		while (walk < limit) {
-			if (!IOPTE_IS_DUMMY(iommu, walk))
-				break;
-			walk++;
-		}
-		iommu->lowest_consistent_map =
-			(walk - iommu->page_table);
-	}
-
-	/* Data for consistent mappings cannot enter the streaming
-	 * buffers, so we only need to update the TSB.  We flush
-	 * the IOMMU here as well to prevent conflicts with the
-	 * streaming mapping deferred tlb flush scheme.
-	 */
-
-	ctx = 0;
-	if (iommu->iommu_ctxflush)
-		ctx = (iopte_val(*iopte) & IOPTE_CONTEXT) >> 47UL;
-
-	for (i = 0; i < npages; i++, iopte++)
-		iopte_make_dummy(iommu, iopte);
-
-	if (iommu->iommu_ctxflush) {
-		pci_iommu_write(iommu->iommu_ctxflush, ctx);
-	} else {
-		for (i = 0; i < npages; i++) {
-			u32 daddr = dvma + (i << IO_PAGE_SHIFT);
-
-			pci_iommu_write(iommu->iommu_flush, daddr);
-		}
-	}
-
-	iommu_free_ctx(iommu, ctx);
 
 	spin_unlock_irqrestore(&iommu->lock, flags);
 
@@ -372,25 +309,27 @@ dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direct
 	iommu = pcp->pbm->iommu;
 	strbuf = &pcp->pbm->stc;
 
-	if (direction == PCI_DMA_NONE)
+	if (unlikely(direction == PCI_DMA_NONE))
-		BUG();
+		goto bad_no_ctx;
 
 	oaddr = (unsigned long)ptr;
 	npages = IO_PAGE_ALIGN(oaddr + sz) - (oaddr & IO_PAGE_MASK);
 	npages >>= IO_PAGE_SHIFT;
 
 	spin_lock_irqsave(&iommu->lock, flags);
+	base = alloc_npages(iommu, npages);
+	ctx = 0;
+	if (iommu->iommu_ctxflush)
+		ctx = iommu_alloc_ctx(iommu);
+	spin_unlock_irqrestore(&iommu->lock, flags);
 
-	base = alloc_streaming_cluster(iommu, npages);
+	if (unlikely(!base))
-	if (base == NULL)
 		goto bad;
+
 	bus_addr = (iommu->page_table_map_base +
 		    ((base - iommu->page_table) << IO_PAGE_SHIFT));
 	ret = bus_addr | (oaddr & ~IO_PAGE_MASK);
 	base_paddr = __pa(oaddr & IO_PAGE_MASK);
-	ctx = 0;
-	if (iommu->iommu_ctxflush)
-		ctx = iommu_alloc_ctx(iommu);
 	if (strbuf->strbuf_enabled)
 		iopte_protection = IOPTE_STREAMING(ctx);
 	else
@@ -401,12 +340,13 @@ dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direct
 	for (i = 0; i < npages; i++, base++, base_paddr += IO_PAGE_SIZE)
 		iopte_val(*base) = iopte_protection | base_paddr;
 
-	spin_unlock_irqrestore(&iommu->lock, flags);
-
 	return ret;
 
 bad:
-	spin_unlock_irqrestore(&iommu->lock, flags);
+	iommu_free_ctx(iommu, ctx);
+bad_no_ctx:
+	if (printk_ratelimit())
+		WARN_ON(1);
 	return PCI_DMA_ERROR_CODE;
 }
 
@@ -481,10 +421,13 @@ void pci_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int
 	struct pci_iommu *iommu;
 	struct pci_strbuf *strbuf;
 	iopte_t *base;
-	unsigned long flags, npages, ctx;
+	unsigned long flags, npages, ctx, i;
 
-	if (direction == PCI_DMA_NONE)
+	if (unlikely(direction == PCI_DMA_NONE)) {
-		BUG();
+		if (printk_ratelimit())
+			WARN_ON(1);
+		return;
+	}
 
 	pcp = pdev->sysdata;
 	iommu = pcp->pbm->iommu;
@@ -510,13 +453,14 @@ void pci_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int
 
 	/* Step 1: Kick data out of streaming buffers if necessary. */
 	if (strbuf->strbuf_enabled)
-		pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction);
+		pci_strbuf_flush(strbuf, iommu, bus_addr, ctx,
+				 npages, direction);
 
-	/* Step 2: Clear out first TSB entry. */
+	/* Step 2: Clear out TSB entries. */
-	iopte_make_dummy(iommu, base);
+	for (i = 0; i < npages; i++)
+		iopte_make_dummy(iommu, base + i);
 
-	free_streaming_cluster(iommu, bus_addr - iommu->page_table_map_base,
+	free_npages(iommu, bus_addr - iommu->page_table_map_base, npages);
-			       npages, ctx);
 
 	iommu_free_ctx(iommu, ctx);
 
@@ -621,6 +565,8 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int
 			pci_map_single(pdev,
 				       (page_address(sglist->page) + sglist->offset),
 				       sglist->length, direction);
+		if (unlikely(sglist->dma_address == PCI_DMA_ERROR_CODE))
+			return 0;
 		sglist->dma_length = sglist->length;
 		return 1;
 	}
@@ -629,21 +575,29 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int
 	iommu = pcp->pbm->iommu;
 	strbuf = &pcp->pbm->stc;
 	
-	if (direction == PCI_DMA_NONE)
+	if (unlikely(direction == PCI_DMA_NONE))
-		BUG();
+		goto bad_no_ctx;
 
 	/* Step 1: Prepare scatter list. */
 
 	npages = prepare_sg(sglist, nelems);
 
-	/* Step 2: Allocate a cluster. */
+	/* Step 2: Allocate a cluster and context, if necessary. */
 
 	spin_lock_irqsave(&iommu->lock, flags);
 
-	base = alloc_streaming_cluster(iommu, npages);
+	base = alloc_npages(iommu, npages);
+	ctx = 0;
+	if (iommu->iommu_ctxflush)
+		ctx = iommu_alloc_ctx(iommu);
+
+	spin_unlock_irqrestore(&iommu->lock, flags);
+
 	if (base == NULL)
 		goto bad;
-	dma_base = iommu->page_table_map_base + ((base - iommu->page_table) << IO_PAGE_SHIFT);
+
+	dma_base = iommu->page_table_map_base +
+		((base - iommu->page_table) << IO_PAGE_SHIFT);
 
 	/* Step 3: Normalize DMA addresses. */
 	used = nelems;
@@ -656,30 +610,28 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int
 	}
 	used = nelems - used;
 
-	/* Step 4: Choose a context if necessary. */
+	/* Step 4: Create the mappings. */
-	ctx = 0;
-	if (iommu->iommu_ctxflush)
-		ctx = iommu_alloc_ctx(iommu);
-
-	/* Step 5: Create the mappings. */
 	if (strbuf->strbuf_enabled)
 		iopte_protection = IOPTE_STREAMING(ctx);
 	else
 		iopte_protection = IOPTE_CONSISTENT(ctx);
 	if (direction != PCI_DMA_TODEVICE)
 		iopte_protection |= IOPTE_WRITE;
-	fill_sg (base, sglist, used, nelems, iopte_protection);
+
+	fill_sg(base, sglist, used, nelems, iopte_protection);
+
 #ifdef VERIFY_SG
 	verify_sglist(sglist, nelems, base, npages);
 #endif
 
-	spin_unlock_irqrestore(&iommu->lock, flags);
-
 	return used;
 
 bad:
-	spin_unlock_irqrestore(&iommu->lock, flags);
+	iommu_free_ctx(iommu, ctx);
-	return PCI_DMA_ERROR_CODE;
+bad_no_ctx:
+	if (printk_ratelimit())
+		WARN_ON(1);
+	return 0;
 }
 
 /* Unmap a set of streaming mode DMA translations. */
@@ -692,8 +644,10 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems,
 	unsigned long flags, ctx, i, npages;
 	u32 bus_addr;
 
-	if (direction == PCI_DMA_NONE)
+	if (unlikely(direction == PCI_DMA_NONE)) {
-		BUG();
+		if (printk_ratelimit())
+			WARN_ON(1);
+	}
 
 	pcp = pdev->sysdata;
 	iommu = pcp->pbm->iommu;
@@ -705,7 +659,8 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems,
 		if (sglist[i].dma_length == 0)
 			break;
 	i--;
-	npages = (IO_PAGE_ALIGN(sglist[i].dma_address + sglist[i].dma_length) - bus_addr) >> IO_PAGE_SHIFT;
+	npages = (IO_PAGE_ALIGN(sglist[i].dma_address + sglist[i].dma_length) -
+		  bus_addr) >> IO_PAGE_SHIFT;
 
 	base = iommu->page_table +
 		((bus_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
@@ -726,11 +681,11 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems,
 	if (strbuf->strbuf_enabled)
 		pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction);
 
-	/* Step 2: Clear out first TSB entry. */
+	/* Step 2: Clear out the TSB entries. */
-	iopte_make_dummy(iommu, base);
+	for (i = 0; i < npages; i++)
+		iopte_make_dummy(iommu, base + i);
 
-	free_streaming_cluster(iommu, bus_addr - iommu->page_table_map_base,
+	free_npages(iommu, bus_addr - iommu->page_table_map_base, npages);
-			       npages, ctx);
 
 	iommu_free_ctx(iommu, ctx);
 

arch/sparc64/kernel/pci_psycho.c

@@ -1207,13 +1207,9 @@ static void psycho_scan_bus(struct pci_controller_info *p)
 static void psycho_iommu_init(struct pci_controller_info *p)
 {
 	struct pci_iommu *iommu = p->pbm_A.iommu;
-	unsigned long tsbbase, i;
+	unsigned long i;
 	u64 control;
 
-	/* Setup initial software IOMMU state. */
-	spin_lock_init(&iommu->lock);
-	iommu->ctx_lowest_free = 1;
-
 	/* Register addresses. */
 	iommu->iommu_control  = p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL;
 	iommu->iommu_tsbbase  = p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE;
@@ -1240,40 +1236,10 @@ static void psycho_iommu_init(struct pci_controller_info *p)
 	/* Leave diag mode enabled for full-flushing done
 	 * in pci_iommu.c
 	 */
+	pci_iommu_table_init(iommu, IO_TSB_SIZE, 0xc0000000, 0xffffffff);
 
-	iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
+	psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE,
-	if (!iommu->dummy_page) {
+		     __pa(iommu->page_table));
-		prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
-		prom_halt();
-	}
-	memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
-	iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
-
-	/* Using assumed page size 8K with 128K entries we need 1MB iommu page
-	 * table (128K ioptes * 8 bytes per iopte).  This is
-	 * page order 7 on UltraSparc.
-	 */
-	tsbbase = __get_free_pages(GFP_KERNEL, get_order(IO_TSB_SIZE));
-	if (!tsbbase) {
-		prom_printf("PSYCHO_IOMMU: Error, gfp(tsb) failed.\n");
-		prom_halt();
-	}
-	iommu->page_table = (iopte_t *)tsbbase;
-	iommu->page_table_sz_bits = 17;
-	iommu->page_table_map_base = 0xc0000000;
-	iommu->dma_addr_mask = 0xffffffff;
-	pci_iommu_table_init(iommu, IO_TSB_SIZE);
-
-	/* We start with no consistent mappings. */
-	iommu->lowest_consistent_map =
-		1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
-
-	for (i = 0; i < PBM_NCLUSTERS; i++) {
-		iommu->alloc_info[i].flush = 0;
-		iommu->alloc_info[i].next = 0;
-	}
-
-	psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE, __pa(tsbbase));
 
 	control = psycho_read(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL);
 	control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ);
@@ -1281,7 +1247,7 @@ static void psycho_iommu_init(struct pci_controller_info *p)
 	psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL, control);
 
 	/* If necessary, hook us up for starfire IRQ translations. */
-	if(this_is_starfire)
+	if (this_is_starfire)
 		p->starfire_cookie = starfire_hookup(p->pbm_A.portid);
 	else
 		p->starfire_cookie = NULL;

arch/sparc64/kernel/pci_sabre.c

@@ -1267,13 +1267,9 @@ static void sabre_iommu_init(struct pci_controller_info *p,
 			     u32 dma_mask)
 {
 	struct pci_iommu *iommu = p->pbm_A.iommu;
-	unsigned long tsbbase, i, order;
+	unsigned long i;
 	u64 control;
 
-	/* Setup initial software IOMMU state. */
-	spin_lock_init(&iommu->lock);
-	iommu->ctx_lowest_free = 1;
-
 	/* Register addresses. */
 	iommu->iommu_control  = p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL;
 	iommu->iommu_tsbbase  = p->pbm_A.controller_regs + SABRE_IOMMU_TSBBASE;
@@ -1295,26 +1291,10 @@ static void sabre_iommu_init(struct pci_controller_info *p,
 	/* Leave diag mode enabled for full-flushing done
 	 * in pci_iommu.c
 	 */
+	pci_iommu_table_init(iommu, tsbsize * 1024 * 8, dvma_offset, dma_mask);
 
-	iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
+	sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_TSBBASE,
-	if (!iommu->dummy_page) {
+		    __pa(iommu->page_table));
-		prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
-		prom_halt();
-	}
-	memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
-	iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
-
-	tsbbase = __get_free_pages(GFP_KERNEL, order = get_order(tsbsize * 1024 * 8));
-	if (!tsbbase) {
-		prom_printf("SABRE_IOMMU: Error, gfp(tsb) failed.\n");
-		prom_halt();
-	}
-	iommu->page_table = (iopte_t *)tsbbase;
-	iommu->page_table_map_base = dvma_offset;
-	iommu->dma_addr_mask = dma_mask;
-	pci_iommu_table_init(iommu, PAGE_SIZE << order);
-
-	sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_TSBBASE, __pa(tsbbase));
 
 	control = sabre_read(p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL);
 	control &= ~(SABRE_IOMMUCTRL_TSBSZ | SABRE_IOMMUCTRL_TBWSZ);
@@ -1322,11 +1302,9 @@ static void sabre_iommu_init(struct pci_controller_info *p,
 	switch(tsbsize) {
 	case 64:
 		control |= SABRE_IOMMU_TSBSZ_64K;
-		iommu->page_table_sz_bits = 16;
 		break;
 	case 128:
 		control |= SABRE_IOMMU_TSBSZ_128K;
-		iommu->page_table_sz_bits = 17;
 		break;
 	default:
 		prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize);
@@ -1334,15 +1312,6 @@ static void sabre_iommu_init(struct pci_controller_info *p,
 		break;
 	}
 	sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL, control);
-
-	/* We start with no consistent mappings. */
-	iommu->lowest_consistent_map =
-		1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
-
-	for (i = 0; i < PBM_NCLUSTERS; i++) {
-		iommu->alloc_info[i].flush = 0;
-		iommu->alloc_info[i].next = 0;
-	}
 }
 
 static void pbm_register_toplevel_resources(struct pci_controller_info *p,

arch/sparc64/kernel/pci_schizo.c

@@ -1765,7 +1765,7 @@ static void schizo_pbm_strbuf_init(struct pci_pbm_info *pbm)
 static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
 {
 	struct pci_iommu *iommu = pbm->iommu;
-	unsigned long tsbbase, i, tagbase, database, order;
+	unsigned long i, tagbase, database;
 	u32 vdma[2], dma_mask;
 	u64 control;
 	int err, tsbsize;
@@ -1800,10 +1800,6 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
 			prom_halt();
 	};
 
-	/* Setup initial software IOMMU state. */
-	spin_lock_init(&iommu->lock);
-	iommu->ctx_lowest_free = 1;
-
 	/* Register addresses, SCHIZO has iommu ctx flushing. */
 	iommu->iommu_control  = pbm->pbm_regs + SCHIZO_IOMMU_CONTROL;
 	iommu->iommu_tsbbase  = pbm->pbm_regs + SCHIZO_IOMMU_TSBBASE;
@@ -1832,56 +1828,9 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
 	/* Leave diag mode enabled for full-flushing done
 	 * in pci_iommu.c
 	 */
+	pci_iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask);
 
-	iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
+	schizo_write(iommu->iommu_tsbbase, __pa(iommu->page_table));
-	if (!iommu->dummy_page) {
-		prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
-		prom_halt();
-	}
-	memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
-	iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
-
-	/* Using assumed page size 8K with 128K entries we need 1MB iommu page
-	 * table (128K ioptes * 8 bytes per iopte).  This is
-	 * page order 7 on UltraSparc.
-	 */
-	order = get_order(tsbsize * 8 * 1024);
-	tsbbase = __get_free_pages(GFP_KERNEL, order);
-	if (!tsbbase) {
-		prom_printf("%s: Error, gfp(tsb) failed.\n", pbm->name);
-		prom_halt();
-	}
-
-	iommu->page_table = (iopte_t *)tsbbase;
-	iommu->page_table_map_base = vdma[0];
-	iommu->dma_addr_mask = dma_mask;
-	pci_iommu_table_init(iommu, PAGE_SIZE << order);
-
-	switch (tsbsize) {
-	case 64:
-		iommu->page_table_sz_bits = 16;
-		break;
-
-	case 128:
-		iommu->page_table_sz_bits = 17;
-		break;
-
-	default:
-		prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize);
-		prom_halt();
-		break;
-	};
-
-	/* We start with no consistent mappings. */
-	iommu->lowest_consistent_map =
-		1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
-
-	for (i = 0; i < PBM_NCLUSTERS; i++) {
-		iommu->alloc_info[i].flush = 0;
-		iommu->alloc_info[i].next = 0;
-	}
-
-	schizo_write(iommu->iommu_tsbbase, __pa(tsbbase));
 
 	control = schizo_read(iommu->iommu_control);
 	control &= ~(SCHIZO_IOMMU_CTRL_TSBSZ | SCHIZO_IOMMU_CTRL_TBWSZ);

arch/sparc64/kernel/power.c

@@ -17,6 +17,7 @@
 
 #include <asm/system.h>
 #include <asm/ebus.h>
+#include <asm/isa.h>
 #include <asm/auxio.h>
 
 #include <linux/unistd.h>
@@ -100,46 +101,83 @@ static int powerd(void *__unused)
 	return 0;
 }
 
-static int __init has_button_interrupt(struct linux_ebus_device *edev)
+static int __init has_button_interrupt(unsigned int irq, int prom_node)
 {
-	if (edev->irqs[0] == PCI_IRQ_NONE)
+	if (irq == PCI_IRQ_NONE)
 		return 0;
-	if (!prom_node_has_property(edev->prom_node, "button"))
+	if (!prom_node_has_property(prom_node, "button"))
 		return 0;
 
 	return 1;
 }
 
-void __init power_init(void)
+static int __init power_probe_ebus(struct resource **resp, unsigned int *irq_p, int *prom_node_p)
 {
 	struct linux_ebus *ebus;
 	struct linux_ebus_device *edev;
+
+	for_each_ebus(ebus) {
+		for_each_ebusdev(edev, ebus) {
+			if (!strcmp(edev->prom_name, "power")) {
+				*resp = &edev->resource[0];
+				*irq_p = edev->irqs[0];
+				*prom_node_p = edev->prom_node;
+				return 0;
+			}
+		}
+	}
+	return -ENODEV;
+}
+
+static int __init power_probe_isa(struct resource **resp, unsigned int *irq_p, int *prom_node_p)
+{
+	struct sparc_isa_bridge *isa_bus;
+	struct sparc_isa_device *isa_dev;
+
+	for_each_isa(isa_bus) {
+		for_each_isadev(isa_dev, isa_bus) {
+			if (!strcmp(isa_dev->prom_name, "power")) {
+				*resp = &isa_dev->resource;
+				*irq_p = isa_dev->irq;
+				*prom_node_p = isa_dev->prom_node;
+				return 0;
+			}
+		}
+	}
+	return -ENODEV;
+}
+
+void __init power_init(void)
+{
+	struct resource *res = NULL;
+	unsigned int irq;
+	int prom_node;
 	static int invoked;
 
 	if (invoked)
 		return;
 	invoked = 1;
 
-	for_each_ebus(ebus) {
+	if (!power_probe_ebus(&res, &irq, &prom_node))
-		for_each_ebusdev(edev, ebus) {
+		goto found;
-			if (!strcmp(edev->prom_name, "power"))
+
-				goto found;
+	if (!power_probe_isa(&res, &irq, &prom_node))
-		}
+		goto found;
-	}
+
 	return;
 
 found:
-	power_reg = ioremap(edev->resource[0].start, 0x4);
+	power_reg = ioremap(res->start, 0x4);
 	printk("power: Control reg at %p ... ", power_reg);
 	poweroff_method = machine_halt;  /* able to use the standard halt */
-	if (has_button_interrupt(edev)) {
+	if (has_button_interrupt(irq, prom_node)) {
 		if (kernel_thread(powerd, NULL, CLONE_FS) < 0) {
 			printk("Failed to start power daemon.\n");
 			return;
 		}
 		printk("powerd running.\n");
 
-		if (request_irq(edev->irqs[0],
+		if (request_irq(irq,
 				power_handler, SA_SHIRQ, "power", NULL) < 0)
 			printk("power: Error, cannot register IRQ handler.\n");
 	} else {

arch/sparc64/kernel/rtrap.S

@@ -312,32 +312,33 @@ kern_fpucheck:	ldub			[%g6 + TI_FPDEPTH], %l5
 		wr			%g1, FPRS_FEF, %fprs
 		ldx			[%o1 + %o5], %g1
 		add			%g6, TI_XFSR, %o1
-		membar			#StoreLoad | #LoadLoad
 		sll			%o0, 8, %o2
 		add			%g6, TI_FPREGS, %o3
 		brz,pn			%l6, 1f
 		 add			%g6, TI_FPREGS+0x40, %o4
 
+		membar			#Sync
 		ldda			[%o3 + %o2] ASI_BLK_P, %f0
 		ldda			[%o4 + %o2] ASI_BLK_P, %f16
+		membar			#Sync
 1:		andcc			%l2, FPRS_DU, %g0
 		be,pn			%icc, 1f
 		 wr			%g1, 0, %gsr
 		add			%o2, 0x80, %o2
+		membar			#Sync
 		ldda			[%o3 + %o2] ASI_BLK_P, %f32
 		ldda			[%o4 + %o2] ASI_BLK_P, %f48
-
 1:		membar			#Sync
 		ldx			[%o1 + %o5], %fsr
 2:		stb			%l5, [%g6 + TI_FPDEPTH]
 		ba,pt			%xcc, rt_continue
 		 nop
 5:		wr			%g0, FPRS_FEF, %fprs
-		membar			#StoreLoad | #LoadLoad
 		sll			%o0, 8, %o2
 
 		add			%g6, TI_FPREGS+0x80, %o3
 		add			%g6, TI_FPREGS+0xc0, %o4
+		membar			#Sync
 		ldda			[%o3 + %o2] ASI_BLK_P, %f32
 		ldda			[%o4 + %o2] ASI_BLK_P, %f48
 		membar			#Sync

arch/sparc64/kernel/smp.c

@@ -1001,13 +1001,6 @@ void smp_penguin_jailcell(int irq, struct pt_regs *regs)
 	preempt_enable();
 }
 
-extern unsigned long xcall_promstop;
-
-void smp_promstop_others(void)
-{
-	smp_cross_call(&xcall_promstop, 0, 0, 0);
-}
-
 #define prof_multiplier(__cpu)		cpu_data(__cpu).multiplier
 #define prof_counter(__cpu)		cpu_data(__cpu).counter
 

arch/sparc64/lib/VISsave.S

@@ -59,15 +59,17 @@ vis1:	ldub		[%g6 + TI_FPSAVED], %g3
 	be,pn		%icc, 9b
 	 add		%g6, TI_FPREGS, %g2
 	andcc		%o5, FPRS_DL, %g0
-	membar		#StoreStore | #LoadStore
 
 	be,pn		%icc, 4f
 	 add		%g6, TI_FPREGS+0x40, %g3
+	membar		#Sync
 	stda		%f0, [%g2 + %g1] ASI_BLK_P
 	stda		%f16, [%g3 + %g1] ASI_BLK_P
+	membar		#Sync
 	andcc		%o5, FPRS_DU, %g0
 	be,pn		%icc, 5f
 4:	 add		%g1, 128, %g1
+	membar		#Sync
 	stda		%f32, [%g2 + %g1] ASI_BLK_P
 
 	stda		%f48, [%g3 + %g1] ASI_BLK_P
@@ -87,7 +89,7 @@ vis1:	ldub		[%g6 + TI_FPSAVED], %g3
 	sll		%g1, 5, %g1
 	add		%g6, TI_FPREGS+0xc0, %g3
 	wr		%g0, FPRS_FEF, %fprs
-	membar		#StoreStore | #LoadStore
+	membar		#Sync
 	stda		%f32, [%g2 + %g1] ASI_BLK_P
 	stda		%f48, [%g3 + %g1] ASI_BLK_P
 	membar		#Sync
@@ -128,8 +130,8 @@ VISenterhalf:
 	be,pn		%icc, 4f
 	 add		%g6, TI_FPREGS, %g2
 
-	membar		#StoreStore | #LoadStore
 	add		%g6, TI_FPREGS+0x40, %g3
+	membar		#Sync
 	stda		%f0, [%g2 + %g1] ASI_BLK_P
 	stda		%f16, [%g3 + %g1] ASI_BLK_P
 	membar		#Sync

arch/sparc64/mm/init.c

@@ -105,7 +105,7 @@ static void __init read_obp_memory(const char *property,
 		regs[i].phys_addr = base;
 		regs[i].reg_size = size;
 	}
-	sort(regs, ents, sizeof(struct  linux_prom64_registers),
+	sort(regs, ents, sizeof(struct linux_prom64_registers),
 	     cmp_p64, NULL);
 }
 
@@ -367,8 +367,11 @@ struct linux_prom_translation {
 	unsigned long size;
 	unsigned long data;
 };
-static struct linux_prom_translation prom_trans[512] __initdata;
+
-static unsigned int prom_trans_ents __initdata;
+/* Exported for kernel TLB miss handling in ktlb.S */
+struct linux_prom_translation prom_trans[512] __read_mostly;
+unsigned int prom_trans_ents __read_mostly;
+unsigned int swapper_pgd_zero __read_mostly;
 
 extern unsigned long prom_boot_page;
 extern void prom_remap(unsigned long physpage, unsigned long virtpage, int mmu_ihandle);
@@ -378,122 +381,57 @@ extern void register_prom_callbacks(void);
 /* Exported for SMP bootup purposes. */
 unsigned long kern_locked_tte_data;
 
-/* Exported for kernel TLB miss handling in ktlb.S */
-unsigned long prom_pmd_phys __read_mostly;
-unsigned int swapper_pgd_zero __read_mostly;
-
-static pmd_t *prompmd __read_mostly;
-
-#define BASE_PAGE_SIZE 8192
-
 /*
  * Translate PROM's mapping we capture at boot time into physical address.
  * The second parameter is only set from prom_callback() invocations.
  */
 unsigned long prom_virt_to_phys(unsigned long promva, int *error)
 {
-	pmd_t *pmdp = prompmd + ((promva >> 23) & 0x7ff);
+	int i;
-	pte_t *ptep;
-	unsigned long base;
 
-	if (pmd_none(*pmdp)) {
+	for (i = 0; i < prom_trans_ents; i++) {
-		if (error)
+		struct linux_prom_translation *p = &prom_trans[i];
-			*error = 1;
-		return 0;
-	}
-	ptep = (pte_t *)__pmd_page(*pmdp) + ((promva >> 13) & 0x3ff);
-	if (!pte_present(*ptep)) {
-		if (error)
-			*error = 1;
-		return 0;
-	}
-	if (error) {
-		*error = 0;
-		return pte_val(*ptep);
-	}
-	base = pte_val(*ptep) & _PAGE_PADDR;
 
-	return base + (promva & (BASE_PAGE_SIZE - 1));
+		if (promva >= p->virt &&
+		    promva < (p->virt + p->size)) {
+			unsigned long base = p->data & _PAGE_PADDR;
+
+			if (error)
+				*error = 0;
+			return base + (promva & (8192 - 1));
+		}
+	}
+	if (error)
+		*error = 1;
+	return 0UL;
 }
 
 /* The obp translations are saved based on 8k pagesize, since obp can
  * use a mixture of pagesizes. Misses to the LOW_OBP_ADDRESS ->
- * HI_OBP_ADDRESS range are handled in entry.S and do not use the vpte
+ * HI_OBP_ADDRESS range are handled in ktlb.S and do not use the vpte
  * scheme (also, see rant in inherit_locked_prom_mappings()).
  */
-static void __init build_obp_range(unsigned long start, unsigned long end, unsigned long data)
-{
-	unsigned long vaddr;
-
-	for (vaddr = start; vaddr < end; vaddr += BASE_PAGE_SIZE) {
-		unsigned long val;
-		pmd_t *pmd;
-		pte_t *pte;
-
-		pmd = prompmd + ((vaddr >> 23) & 0x7ff);
-		if (pmd_none(*pmd)) {
-			pte = __alloc_bootmem(BASE_PAGE_SIZE, BASE_PAGE_SIZE,
-					      PAGE_SIZE);
-			if (!pte)
-				prom_halt();
-			memset(pte, 0, BASE_PAGE_SIZE);
-			pmd_set(pmd, pte);
-		}
-		pte = (pte_t *) __pmd_page(*pmd) + ((vaddr >> 13) & 0x3ff);
-
-		val = data;
-
-		/* Clear diag TTE bits. */
-		if (tlb_type == spitfire)
-			val &= ~0x0003fe0000000000UL;
-
-		set_pte_at(&init_mm, vaddr, pte,
-			   __pte(val | _PAGE_MODIFIED));
-
-		data += BASE_PAGE_SIZE;
-	}
-}
-
 static inline int in_obp_range(unsigned long vaddr)
 {
 	return (vaddr >= LOW_OBP_ADDRESS &&
 		vaddr < HI_OBP_ADDRESS);
 }
 
-#define OBP_PMD_SIZE 2048
+static int cmp_ptrans(const void *a, const void *b)
-static void __init build_obp_pgtable(void)
 {
-	unsigned long i;
+	const struct linux_prom_translation *x = a, *y = b;
 
-	prompmd = __alloc_bootmem(OBP_PMD_SIZE, OBP_PMD_SIZE, PAGE_SIZE);
+	if (x->virt > y->virt)
-	if (!prompmd)
+		return 1;
-		prom_halt();
+	if (x->virt < y->virt)
-
+		return -1;
-	memset(prompmd, 0, OBP_PMD_SIZE);
+	return 0;
-
-	prom_pmd_phys = __pa(prompmd);
-
-	for (i = 0; i < prom_trans_ents; i++) {
-		unsigned long start, end;
-
-		if (!in_obp_range(prom_trans[i].virt))
-			continue;
-
-		start = prom_trans[i].virt;
-		end = start + prom_trans[i].size;
-		if (end > HI_OBP_ADDRESS)
-			end = HI_OBP_ADDRESS;
-
-		build_obp_range(start, end, prom_trans[i].data);
-	}
 }
 
-/* Read OBP translations property into 'prom_trans[]'.
+/* Read OBP translations property into 'prom_trans[]'.  */
- * Return the number of entries.
- */
 static void __init read_obp_translations(void)
 {
-	int n, node;
+	int n, node, ents, first, last, i;
 
 	node = prom_finddevice("/virtual-memory");
 	n = prom_getproplen(node, "translations");
@@ -515,7 +453,41 @@ static void __init read_obp_translations(void)
 
 	n = n / sizeof(struct linux_prom_translation);
 
-	prom_trans_ents = n;
+	ents = n;
+
+	sort(prom_trans, ents, sizeof(struct linux_prom_translation),
+	     cmp_ptrans, NULL);
+
+	/* Now kick out all the non-OBP entries.  */
+	for (i = 0; i < ents; i++) {
+		if (in_obp_range(prom_trans[i].virt))
+			break;
+	}
+	first = i;
+	for (; i < ents; i++) {
+		if (!in_obp_range(prom_trans[i].virt))
+			break;
+	}
+	last = i;
+
+	for (i = 0; i < (last - first); i++) {
+		struct linux_prom_translation *src = &prom_trans[i + first];
+		struct linux_prom_translation *dest = &prom_trans[i];
+
+		*dest = *src;
+	}
+	for (; i < ents; i++) {
+		struct linux_prom_translation *dest = &prom_trans[i];
+		dest->virt = dest->size = dest->data = 0x0UL;
+	}
+
+	prom_trans_ents = last - first;
+
+	if (tlb_type == spitfire) {
+		/* Clear diag TTE bits. */
+		for (i = 0; i < prom_trans_ents; i++)
+			prom_trans[i].data &= ~0x0003fe0000000000UL;
+	}
 }
 
 static void __init remap_kernel(void)
@@ -553,21 +525,18 @@ static void __init remap_kernel(void)
 }
 
 
-static void __init inherit_prom_mappings_pre(void)
+static void __init inherit_prom_mappings(void)
 {
 	read_obp_translations();
 
 	/* Now fixup OBP's idea about where we really are mapped. */
 	prom_printf("Remapping the kernel... ");
 	remap_kernel();
-
 	prom_printf("done.\n");
-}
 
-static void __init inherit_prom_mappings_post(void)
+	prom_printf("Registering callbacks... ");
-{
-	build_obp_pgtable();
 	register_prom_callbacks();
+	prom_printf("done.\n");
 }
 
 /* The OBP specifications for sun4u mark 0xfffffffc00000000 and
@@ -1519,7 +1488,7 @@ void __init paging_init(void)
 	
 	swapper_pgd_zero = pgd_val(swapper_pg_dir[0]);
 	
-	inherit_prom_mappings_pre();
+	inherit_prom_mappings();
 	
 	/* Ok, we can use our TLB miss and window trap handlers safely.
 	 * We need to do a quick peek here to see if we are on StarFire
@@ -1530,23 +1499,15 @@ void __init paging_init(void)
 		extern void setup_tba(int);
 		setup_tba(this_is_starfire);
 	}
-	__flush_tlb_all();
 
-	/* Everything from this point forward, until we are done with
+	inherit_locked_prom_mappings(1);
-	 * inherit_prom_mappings_post(), must complete successfully
+
-	 * without calling into the firmware.  The firwmare page tables
+	__flush_tlb_all();
-	 * have not been built, but we are running on the Linux kernel's
-	 * trap table.
-	 */
 
 	/* Setup bootmem... */
 	pages_avail = 0;
 	last_valid_pfn = end_pfn = bootmem_init(&pages_avail);
 
-	inherit_prom_mappings_post();
-
-	inherit_locked_prom_mappings(1);
-
 #ifdef CONFIG_DEBUG_PAGEALLOC
 	kernel_physical_mapping_init();
 #endif

arch/sparc64/mm/ultra.S

@@ -453,22 +453,6 @@ xcall_flush_dcache_page_spitfire: /* %g1 == physical page address
 	nop
 	nop
 
-	.globl		xcall_promstop
-xcall_promstop:
-	rdpr		%pstate, %g2
-	wrpr		%g2, PSTATE_IG | PSTATE_AG, %pstate
-	rdpr		%pil, %g2
-	wrpr		%g0, 15, %pil
-	sethi		%hi(109f), %g7
-	b,pt		%xcc, etrap_irq
-109:	 or		%g7, %lo(109b), %g7
-	flushw
-	call		prom_stopself
-	 nop
-	/* We should not return, just spin if we do... */
-1:	b,a,pt		%xcc, 1b
-	nop
-
 	.data
 
 errata32_hwbug:

arch/sparc64/prom/misc.c

@@ -68,19 +68,11 @@ void prom_cmdline(void)
 	local_irq_restore(flags);
 }
 
-#ifdef CONFIG_SMP
-extern void smp_promstop_others(void);
-#endif
-
 /* Drop into the prom, but completely terminate the program.
  * No chance of continuing.
  */
 void prom_halt(void)
 {
-#ifdef CONFIG_SMP
-	smp_promstop_others();
-	udelay(8000);
-#endif
 again:
 	p1275_cmd("exit", P1275_INOUT(0, 0));
 	goto again; /* PROM is out to get me -DaveM */
@@ -88,10 +80,6 @@ void prom_halt(void)
 
 void prom_halt_power_off(void)
 {
-#ifdef CONFIG_SMP
-	smp_promstop_others();
-	udelay(8000);
-#endif
 	p1275_cmd("SUNW,power-off", P1275_INOUT(0, 0));
 
 	/* if nothing else helps, we just halt */

arch/um/Makefile

@@ -152,7 +152,7 @@ archclean:
 $(SYMLINK_HEADERS):
 	@echo '  SYMLINK $@'
 ifneq ($(KBUILD_SRC),)
-	ln -fsn $(srctree)/include/asm-um/$(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $@
+	$(Q)ln -fsn $(srctree)/include/asm-um/$(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $@
 else
 	$(Q)cd $(TOPDIR)/$(dir $@) ; \
 	ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@)

arch/um/drivers/Makefile

@@ -13,7 +13,7 @@ mcast-objs := mcast_kern.o mcast_user.o
 net-objs := net_kern.o net_user.o
 mconsole-objs := mconsole_kern.o mconsole_user.o
 hostaudio-objs := hostaudio_kern.o
-ubd-objs := ubd_kern.o
+ubd-objs := ubd_kern.o ubd_user.o
 port-objs := port_kern.o port_user.o
 harddog-objs := harddog_kern.o harddog_user.o
 

arch/um/drivers/cow.h

@@ -3,15 +3,40 @@
 
 #include <asm/types.h>
 
-#if defined(__BIG_ENDIAN)
+#if defined(__KERNEL__)
-# define ntohll(x) (x)
+
-# define htonll(x) (x)
+# include <asm/byteorder.h>
-#elif defined(__LITTLE_ENDIAN)
+
-# define ntohll(x)  bswap_64(x)
+# if defined(__BIG_ENDIAN)
-# define htonll(x)  bswap_64(x)
+#	define ntohll(x) (x)
+#	define htonll(x) (x)
+# elif defined(__LITTLE_ENDIAN)
+#	define ntohll(x)  be64_to_cpu(x)
+#	define htonll(x)  cpu_to_be64(x)
+# else
+#	error "Could not determine byte order"
+# endif
+
 #else
-#error "__BYTE_ORDER not defined"
+/* For the definition of ntohl, htonl and __BYTE_ORDER */
+#include <endian.h>
+#include <netinet/in.h>
+#if defined(__BYTE_ORDER)
+
+#  if __BYTE_ORDER == __BIG_ENDIAN
+#	define ntohll(x) (x)
+#	define htonll(x) (x)
+#  elif __BYTE_ORDER == __LITTLE_ENDIAN
+#	define ntohll(x)  bswap_64(x)
+#	define htonll(x)  bswap_64(x)
+#  else
+#	error "Could not determine byte order: __BYTE_ORDER uncorrectly defined"
+#  endif
+
+#else  /* ! defined(__BYTE_ORDER) */
+#	error "Could not determine byte order: __BYTE_ORDER not defined"
 #endif
+#endif /* ! defined(__KERNEL__) */
 
 extern int init_cow_file(int fd, char *cow_file, char *backing_file,
 			 int sectorsize, int alignment, int *bitmap_offset_out,

arch/um/drivers/cow_user.c

@@ -9,7 +9,6 @@
 #include <sys/time.h>
 #include <sys/param.h>
 #include <sys/user.h>
-#include <netinet/in.h>
 
 #include "os.h"
 

arch/um/drivers/ubd_kern.c

@@ -35,7 +35,6 @@
 #include "linux/blkpg.h"
 #include "linux/genhd.h"
 #include "linux/spinlock.h"
-#include "asm/atomic.h"
 #include "asm/segment.h"
 #include "asm/uaccess.h"
 #include "asm/irq.h"
@@ -54,21 +53,20 @@
 #include "mem.h"
 #include "mem_kern.h"
 #include "cow.h"
-#include "aio.h"
 
 enum ubd_req { UBD_READ, UBD_WRITE };
 
 struct io_thread_req {
-	enum aio_type op;
+	enum ubd_req op;
 	int fds[2];
 	unsigned long offsets[2];
 	unsigned long long offset;
 	unsigned long length;
 	char *buffer;
 	int sectorsize;
-	int bitmap_offset;
+	unsigned long sector_mask;
-	long bitmap_start;
+	unsigned long long cow_offset;
-	long bitmap_end;
+	unsigned long bitmap_words[2];
 	int error;
 };
 
@@ -82,31 +80,28 @@ extern int create_cow_file(char *cow_file, char *backing_file,
 			   unsigned long *bitmap_len_out,
 			   int *data_offset_out);
 extern int read_cow_bitmap(int fd, void *buf, int offset, int len);
-extern void do_io(struct io_thread_req *req, struct request *r,
+extern void do_io(struct io_thread_req *req);
-		  unsigned long *bitmap);
 
-static inline int ubd_test_bit(__u64 bit, void *data)
+static inline int ubd_test_bit(__u64 bit, unsigned char *data)
 {
-	unsigned char *buffer = data;
 	__u64 n;
 	int bits, off;
 
-	bits = sizeof(buffer[0]) * 8;
+	bits = sizeof(data[0]) * 8;
 	n = bit / bits;
 	off = bit % bits;
-	return((buffer[n] & (1 << off)) != 0);
+	return((data[n] & (1 << off)) != 0);
 }
 
-static inline void ubd_set_bit(__u64 bit, void *data)
+static inline void ubd_set_bit(__u64 bit, unsigned char *data)
 {
-	unsigned char *buffer = data;
 	__u64 n;
 	int bits, off;
 
-	bits = sizeof(buffer[0]) * 8;
+	bits = sizeof(data[0]) * 8;
 	n = bit / bits;
 	off = bit % bits;
-	buffer[n] |= (1 << off);
+	data[n] |= (1 << off);
 }
 /*End stuff from ubd_user.h*/
 
@@ -115,6 +110,8 @@ static inline void ubd_set_bit(__u64 bit, void *data)
 static DEFINE_SPINLOCK(ubd_io_lock);
 static DEFINE_SPINLOCK(ubd_lock);
 
+static void (*do_ubd)(void);
+
 static int ubd_open(struct inode * inode, struct file * filp);
 static int ubd_release(struct inode * inode, struct file * file);
 static int ubd_ioctl(struct inode * inode, struct file * file,
@@ -161,8 +158,6 @@ struct cow {
         int data_offset;
 };
 
-#define MAX_SG 64
-
 struct ubd {
 	char *file;
 	int count;
@@ -173,7 +168,6 @@ struct ubd {
 	int no_cow;
 	struct cow cow;
 	struct platform_device pdev;
-        struct scatterlist sg[MAX_SG];
 };
 
 #define DEFAULT_COW { \
@@ -466,114 +460,81 @@ __uml_help(fakehd,
 );
 
 static void do_ubd_request(request_queue_t * q);
-static int in_ubd;
+
+/* Only changed by ubd_init, which is an initcall. */
+int thread_fd = -1;
 
 /* Changed by ubd_handler, which is serialized because interrupts only
  * happen on CPU 0.
  */
 int intr_count = 0;
 
-static void ubd_end_request(struct request *req, int bytes, int uptodate)
-{
-	if (!end_that_request_first(req, uptodate, bytes >> 9)) {
-		add_disk_randomness(req->rq_disk);
-		end_that_request_last(req);
-	}
-}
-
 /* call ubd_finish if you need to serialize */
-static void __ubd_finish(struct request *req, int bytes)
+static void __ubd_finish(struct request *req, int error)
 {
-	if(bytes < 0){
+	int nsect;
-		ubd_end_request(req, 0, 0);
-  		return;
-  	}
 
-	ubd_end_request(req, bytes, 1);
+	if(error){
+		end_request(req, 0);
+		return;
+	}
+	nsect = req->current_nr_sectors;
+	req->sector += nsect;
+	req->buffer += nsect << 9;
+	req->errors = 0;
+	req->nr_sectors -= nsect;
+	req->current_nr_sectors = 0;
+	end_request(req, 1);
 }
 
-static inline void ubd_finish(struct request *req, int bytes)
+static inline void ubd_finish(struct request *req, int error)
 {
-   	spin_lock(&ubd_io_lock);
+ 	spin_lock(&ubd_io_lock);
-	__ubd_finish(req, bytes);
+	__ubd_finish(req, error);
-  	spin_unlock(&ubd_io_lock);
+	spin_unlock(&ubd_io_lock);
 }
 
-struct bitmap_io {
+/* Called without ubd_io_lock held */
-        atomic_t count;
+static void ubd_handler(void)
-        struct aio_context aio;
+{
-};
+	struct io_thread_req req;
+	struct request *rq = elv_next_request(ubd_queue);
+	int n;
 
-struct ubd_aio {
+	do_ubd = NULL;
-        struct aio_context aio;
+	intr_count++;
-        struct request *req;
+	n = os_read_file(thread_fd, &req, sizeof(req));
-        int len;
+	if(n != sizeof(req)){
-        struct bitmap_io *bitmap;
+		printk(KERN_ERR "Pid %d - spurious interrupt in ubd_handler, "
-        void *bitmap_buf;
+		       "err = %d\n", os_getpid(), -n);
-};
+		spin_lock(&ubd_io_lock);
-
+		end_request(rq, 0);
-static int ubd_reply_fd = -1;
+		spin_unlock(&ubd_io_lock);
+		return;
+	}
+        
+	ubd_finish(rq, req.error);
+	reactivate_fd(thread_fd, UBD_IRQ);	
+	do_ubd_request(ubd_queue);
+}
 
 static irqreturn_t ubd_intr(int irq, void *dev, struct pt_regs *unused)
 {
-	struct aio_thread_reply reply;
+	ubd_handler();
-	struct ubd_aio *aio;
-	struct request *req;
-	int err, n, fd = (int) (long) dev;
-
-	while(1){
-		err = os_read_file(fd, &reply, sizeof(reply));
-		if(err == -EAGAIN)
-			break;
-		if(err < 0){
-			printk("ubd_aio_handler - read returned err %d\n",
-			       -err);
-			break;
-		}
-
-                aio = container_of(reply.data, struct ubd_aio, aio);
-                n = reply.err;
-
-		if(n == 0){
-			req = aio->req;
-			req->nr_sectors -= aio->len >> 9;
-
-			if((aio->bitmap != NULL) &&
-			   (atomic_dec_and_test(&aio->bitmap->count))){
-                                aio->aio = aio->bitmap->aio;
-                                aio->len = 0;
-                                kfree(aio->bitmap);
-                                aio->bitmap = NULL;
-                                submit_aio(&aio->aio);
-			}
-			else {
-				if((req->nr_sectors == 0) &&
-                                   (aio->bitmap == NULL)){
-					int len = req->hard_nr_sectors << 9;
-					ubd_finish(req, len);
-				}
-
-                                if(aio->bitmap_buf != NULL)
-                                        kfree(aio->bitmap_buf);
-				kfree(aio);
-			}
-		}
-                else if(n < 0){
-                        ubd_finish(aio->req, n);
-                        if(aio->bitmap != NULL)
-                                kfree(aio->bitmap);
-                        if(aio->bitmap_buf != NULL)
-                                kfree(aio->bitmap_buf);
-                        kfree(aio);
-                }
-	}
-	reactivate_fd(fd, UBD_IRQ);
-
-        do_ubd_request(ubd_queue);
-
 	return(IRQ_HANDLED);
 }
 
+/* Only changed by ubd_init, which is an initcall. */
+static int io_pid = -1;
+
+void kill_io_thread(void)
+{
+	if(io_pid != -1) 
+		os_kill_process(io_pid, 1);
+}
+
+__uml_exitcall(kill_io_thread);
+
 static int ubd_file_size(struct ubd *dev, __u64 *size_out)
 {
 	char *file;
@@ -608,7 +569,7 @@ static int ubd_open_dev(struct ubd *dev)
 				&dev->cow.data_offset, create_ptr);
 
 	if((dev->fd == -ENOENT) && create_cow){
-		dev->fd = create_cow_file(dev->file, dev->cow.file,
+		dev->fd = create_cow_file(dev->file, dev->cow.file, 
 					  dev->openflags, 1 << 9, PAGE_SIZE,
 					  &dev->cow.bitmap_offset, 
 					  &dev->cow.bitmap_len,
@@ -870,10 +831,6 @@ int ubd_init(void)
 {
         int i;
 
-	ubd_reply_fd = init_aio_irq(UBD_IRQ, "ubd", ubd_intr);
-	if(ubd_reply_fd < 0)
-		printk("Setting up ubd AIO failed, err = %d\n", ubd_reply_fd);
-
 	devfs_mk_dir("ubd");
 	if (register_blkdev(MAJOR_NR, "ubd"))
 		return -1;
@@ -884,7 +841,6 @@ int ubd_init(void)
 		return -1;
 	}
 		
-	blk_queue_max_hw_segments(ubd_queue, MAX_SG);
 	if (fake_major != MAJOR_NR) {
 		char name[sizeof("ubd_nnn\0")];
 
@@ -896,12 +852,40 @@ int ubd_init(void)
 	driver_register(&ubd_driver);
 	for (i = 0; i < MAX_DEV; i++) 
 		ubd_add(i);
-
 	return 0;
 }
 
 late_initcall(ubd_init);
 
+int ubd_driver_init(void){
+	unsigned long stack;
+	int err;
+
+	/* Set by CONFIG_BLK_DEV_UBD_SYNC or ubd=sync.*/
+	if(global_openflags.s){
+		printk(KERN_INFO "ubd: Synchronous mode\n");
+		/* Letting ubd=sync be like using ubd#s= instead of ubd#= is
+		 * enough. So use anyway the io thread. */
+	}
+	stack = alloc_stack(0, 0);
+	io_pid = start_io_thread(stack + PAGE_SIZE - sizeof(void *), 
+				 &thread_fd);
+	if(io_pid < 0){
+		printk(KERN_ERR 
+		       "ubd : Failed to start I/O thread (errno = %d) - "
+		       "falling back to synchronous I/O\n", -io_pid);
+		io_pid = -1;
+		return(0);
+	}
+	err = um_request_irq(UBD_IRQ, thread_fd, IRQ_READ, ubd_intr, 
+			     SA_INTERRUPT, "ubd", ubd_dev);
+	if(err != 0)
+		printk(KERN_ERR "um_request_irq failed - errno = %d\n", -err);
+	return(err);
+}
+
+device_initcall(ubd_driver_init);
+
 static int ubd_open(struct inode *inode, struct file *filp)
 {
 	struct gendisk *disk = inode->i_bdev->bd_disk;
@@ -939,55 +923,105 @@ static int ubd_release(struct inode * inode, struct file * file)
 	return(0);
 }
 
-static void cowify_bitmap(struct io_thread_req *req, unsigned long *bitmap)
+static void cowify_bitmap(__u64 io_offset, int length, unsigned long *cow_mask,
+			  __u64 *cow_offset, unsigned long *bitmap,
+			  __u64 bitmap_offset, unsigned long *bitmap_words,
+			  __u64 bitmap_len)
 {
-        __u64 sector = req->offset / req->sectorsize;
+	__u64 sector = io_offset >> 9;
-        int i;
+	int i, update_bitmap = 0;
 
-        for(i = 0; i < req->length / req->sectorsize; i++){
+	for(i = 0; i < length >> 9; i++){
-                if(ubd_test_bit(sector + i, bitmap))
+		if(cow_mask != NULL)
-                        continue;
+			ubd_set_bit(i, (unsigned char *) cow_mask);
+		if(ubd_test_bit(sector + i, (unsigned char *) bitmap))
+			continue;
 
-                if(req->bitmap_start == -1)
+		update_bitmap = 1;
-                        req->bitmap_start = sector + i;
+		ubd_set_bit(sector + i, (unsigned char *) bitmap);
-                req->bitmap_end = sector + i + 1;
+	}
 
-                ubd_set_bit(sector + i, bitmap);
+	if(!update_bitmap)
-        }
+		return;
+
+	*cow_offset = sector / (sizeof(unsigned long) * 8);
+
+	/* This takes care of the case where we're exactly at the end of the
+	 * device, and *cow_offset + 1 is off the end.  So, just back it up
+	 * by one word.  Thanks to Lynn Kerby for the fix and James McMechan
+	 * for the original diagnosis.
+	 */
+	if(*cow_offset == ((bitmap_len + sizeof(unsigned long) - 1) /
+			   sizeof(unsigned long) - 1))
+		(*cow_offset)--;
+
+	bitmap_words[0] = bitmap[*cow_offset];
+	bitmap_words[1] = bitmap[*cow_offset + 1];
+
+	*cow_offset *= sizeof(unsigned long);
+	*cow_offset += bitmap_offset;
+}
+
+static void cowify_req(struct io_thread_req *req, unsigned long *bitmap,
+		       __u64 bitmap_offset, __u64 bitmap_len)
+{
+	__u64 sector = req->offset >> 9;
+	int i;
+
+	if(req->length > (sizeof(req->sector_mask) * 8) << 9)
+		panic("Operation too long");
+
+	if(req->op == UBD_READ) {
+		for(i = 0; i < req->length >> 9; i++){
+			if(ubd_test_bit(sector + i, (unsigned char *) bitmap))
+				ubd_set_bit(i, (unsigned char *) 
+					    &req->sector_mask);
+                }
+	}
+	else cowify_bitmap(req->offset, req->length, &req->sector_mask,
+			   &req->cow_offset, bitmap, bitmap_offset,
+			   req->bitmap_words, bitmap_len);
 }
 
 /* Called with ubd_io_lock held */
-static int prepare_request(struct request *req, struct io_thread_req *io_req,
+static int prepare_request(struct request *req, struct io_thread_req *io_req)
-                           unsigned long long offset, int page_offset,
-                           int len, struct page *page)
 {
 	struct gendisk *disk = req->rq_disk;
 	struct ubd *dev = disk->private_data;
+	__u64 offset;
+	int len;
+
+	if(req->rq_status == RQ_INACTIVE) return(1);
 
 	/* This should be impossible now */
 	if((rq_data_dir(req) == WRITE) && !dev->openflags.w){
 		printk("Write attempted on readonly ubd device %s\n", 
 		       disk->disk_name);
-                ubd_end_request(req, 0, 0);
+		end_request(req, 0);
 		return(1);
 	}
 
+	offset = ((__u64) req->sector) << 9;
+	len = req->current_nr_sectors << 9;
+
 	io_req->fds[0] = (dev->cow.file != NULL) ? dev->cow.fd : dev->fd;
 	io_req->fds[1] = dev->fd;
+	io_req->cow_offset = -1;
 	io_req->offset = offset;
 	io_req->length = len;
 	io_req->error = 0;
-	io_req->op = (rq_data_dir(req) == READ) ? AIO_READ : AIO_WRITE;
+	io_req->sector_mask = 0;
+
+	io_req->op = (rq_data_dir(req) == READ) ? UBD_READ : UBD_WRITE;
 	io_req->offsets[0] = 0;
 	io_req->offsets[1] = dev->cow.data_offset;
-        io_req->buffer = page_address(page) + page_offset;
+	io_req->buffer = req->buffer;
 	io_req->sectorsize = 1 << 9;
-        io_req->bitmap_offset = dev->cow.bitmap_offset;
-        io_req->bitmap_start = -1;
-        io_req->bitmap_end = -1;
 
-        if((dev->cow.file != NULL) && (io_req->op == UBD_WRITE))
+	if(dev->cow.file != NULL)
-                cowify_bitmap(io_req, dev->cow.bitmap);
+		cowify_req(io_req, dev->cow.bitmap, dev->cow.bitmap_offset,
+			   dev->cow.bitmap_len);
+
 	return(0);
 }
 
@@ -996,36 +1030,30 @@ static void do_ubd_request(request_queue_t *q)
 {
 	struct io_thread_req io_req;
 	struct request *req;
-	__u64 sector;
+	int err, n;
-	int err;
 
-	if(in_ubd)
+	if(thread_fd == -1){
-		return;
+		while((req = elv_next_request(q)) != NULL){
-	in_ubd = 1;
+			err = prepare_request(req, &io_req);
-	while((req = elv_next_request(q)) != NULL){
+			if(!err){
-		struct gendisk *disk = req->rq_disk;
+				do_io(&io_req);
-		struct ubd *dev = disk->private_data;
+				__ubd_finish(req, io_req.error);
-		int n, i;
+			}
-
+		}
-		blkdev_dequeue_request(req);
+	}
-
+	else {
-		sector = req->sector;
+		if(do_ubd || (req = elv_next_request(q)) == NULL)
-		n = blk_rq_map_sg(q, req, dev->sg);
+			return;
-
+		err = prepare_request(req, &io_req);
-		for(i = 0; i < n; i++){
+		if(!err){
-			struct scatterlist *sg = &dev->sg[i];
+			do_ubd = ubd_handler;
-
+			n = os_write_file(thread_fd, (char *) &io_req,
-			err = prepare_request(req, &io_req, sector << 9,
+					 sizeof(io_req));
-					      sg->offset, sg->length,
+			if(n != sizeof(io_req))
-					      sg->page);
+				printk("write to io thread failed, "
-			if(err)
+				       "errno = %d\n", -n);
-				continue;
-
-			sector += sg->length >> 9;
-			do_io(&io_req, req, dev->cow.bitmap);
 		}
 	}
-	in_ubd = 0;
 }
 
 static int ubd_ioctl(struct inode * inode, struct file * file,
@@ -1241,95 +1269,131 @@ int create_cow_file(char *cow_file, char *backing_file, struct openflags flags,
 	return(err);
 }
 
-void do_io(struct io_thread_req *req, struct request *r, unsigned long *bitmap)
+static int update_bitmap(struct io_thread_req *req)
 {
-        struct ubd_aio *aio;
+	int n;
-        struct bitmap_io *bitmap_io = NULL;
-        char *buf;
-        void *bitmap_buf = NULL;
-        unsigned long len, sector;
-        int nsectors, start, end, bit, err;
-        __u64 off;
 
-        if(req->bitmap_start != -1){
+	if(req->cow_offset == -1)
-                /* Round up to the nearest word */
+		return(0);
-                int round = sizeof(unsigned long);
-                len = (req->bitmap_end - req->bitmap_start +
-                       round * 8 - 1) / (round * 8);
-                len *= round;
 
-                off = req->bitmap_start / (8 * round);
+	n = os_seek_file(req->fds[1], req->cow_offset);
-                off *= round;
+	if(n < 0){
+		printk("do_io - bitmap lseek failed : err = %d\n", -n);
+		return(1);
+	}
 
-                bitmap_io = kmalloc(sizeof(*bitmap_io), GFP_KERNEL);
+	n = os_write_file(req->fds[1], &req->bitmap_words,
-                if(bitmap_io == NULL){
+		          sizeof(req->bitmap_words));
-                        printk("Failed to kmalloc bitmap IO\n");
+	if(n != sizeof(req->bitmap_words)){
-                        req->error = 1;
+		printk("do_io - bitmap update failed, err = %d fd = %d\n", -n,
-                        return;
+		       req->fds[1]);
-                }
+		return(1);
+	}
 
-                bitmap_buf = kmalloc(len, GFP_KERNEL);
+	return(0);
-                if(bitmap_buf == NULL){
-                        printk("do_io : kmalloc of bitmap chunk "
-                               "failed\n");
-                        kfree(bitmap_io);
-                        req->error = 1;
-                        return;
-                }
-                memcpy(bitmap_buf, &bitmap[off / sizeof(bitmap[0])], len);
-
-                *bitmap_io = ((struct bitmap_io)
-                        { .count	= ATOMIC_INIT(0),
-                          .aio		= INIT_AIO(AIO_WRITE, req->fds[1],
-                                                   bitmap_buf, len,
-                                                   req->bitmap_offset + off,
-                                                   ubd_reply_fd) } );
-        }
-
-        nsectors = req->length / req->sectorsize;
-        start = 0;
-        end = nsectors;
-        bit = 0;
-        do {
-                if(bitmap != NULL){
-                        sector = req->offset / req->sectorsize;
-                        bit = ubd_test_bit(sector + start, bitmap);
-                        end = start;
-                        while((end < nsectors) &&
-                              (ubd_test_bit(sector + end, bitmap) == bit))
-                                end++;
-                }
-
-                off = req->offsets[bit] + req->offset +
-                        start * req->sectorsize;
-                len = (end - start) * req->sectorsize;
-                buf = &req->buffer[start * req->sectorsize];
-
-                aio = kmalloc(sizeof(*aio), GFP_KERNEL);
-                if(aio == NULL){
-                        req->error = 1;
-                        return;
-                }
-
-                *aio = ((struct ubd_aio)
-                        { .aio		= INIT_AIO(req->op, req->fds[bit], buf,
-                                                   len, off, ubd_reply_fd),
-                          .len		= len,
-                          .req		= r,
-                          .bitmap	= bitmap_io,
-                          .bitmap_buf 	= bitmap_buf });
-
-                if(aio->bitmap != NULL)
-                        atomic_inc(&aio->bitmap->count);
-
-                err = submit_aio(&aio->aio);
-                if(err){
-                        printk("do_io - submit_aio failed, "
-                               "err = %d\n", err);
-                        req->error = 1;
-                        return;
-                }
-
-                start = end;
-        } while(start < nsectors);
 }
+
+void do_io(struct io_thread_req *req)
+{
+	char *buf;
+	unsigned long len;
+	int n, nsectors, start, end, bit;
+	int err;
+	__u64 off;
+
+	nsectors = req->length / req->sectorsize;
+	start = 0;
+	do {
+		bit = ubd_test_bit(start, (unsigned char *) &req->sector_mask);
+		end = start;
+		while((end < nsectors) &&
+		      (ubd_test_bit(end, (unsigned char *)
+				    &req->sector_mask) == bit))
+			end++;
+
+		off = req->offset + req->offsets[bit] +
+			start * req->sectorsize;
+		len = (end - start) * req->sectorsize;
+		buf = &req->buffer[start * req->sectorsize];
+
+		err = os_seek_file(req->fds[bit], off);
+		if(err < 0){
+			printk("do_io - lseek failed : err = %d\n", -err);
+			req->error = 1;
+			return;
+		}
+		if(req->op == UBD_READ){
+			n = 0;
+			do {
+				buf = &buf[n];
+				len -= n;
+				n = os_read_file(req->fds[bit], buf, len);
+				if (n < 0) {
+					printk("do_io - read failed, err = %d "
+					       "fd = %d\n", -n, req->fds[bit]);
+					req->error = 1;
+					return;
+				}
+			} while((n < len) && (n != 0));
+			if (n < len) memset(&buf[n], 0, len - n);
+		} else {
+			n = os_write_file(req->fds[bit], buf, len);
+			if(n != len){
+				printk("do_io - write failed err = %d "
+				       "fd = %d\n", -n, req->fds[bit]);
+				req->error = 1;
+				return;
+			}
+		}
+
+		start = end;
+	} while(start < nsectors);
+
+	req->error = update_bitmap(req);
+}
+
+/* Changed in start_io_thread, which is serialized by being called only
+ * from ubd_init, which is an initcall.
+ */
+int kernel_fd = -1;
+
+/* Only changed by the io thread */
+int io_count = 0;
+
+int io_thread(void *arg)
+{
+	struct io_thread_req req;
+	int n;
+
+	ignore_sigwinch_sig();
+	while(1){
+		n = os_read_file(kernel_fd, &req, sizeof(req));
+		if(n != sizeof(req)){
+			if(n < 0)
+				printk("io_thread - read failed, fd = %d, "
+				       "err = %d\n", kernel_fd, -n);
+			else {
+				printk("io_thread - short read, fd = %d, "
+				       "length = %d\n", kernel_fd, n);
+			}
+			continue;
+		}
+		io_count++;
+		do_io(&req);
+		n = os_write_file(kernel_fd, &req, sizeof(req));
+		if(n != sizeof(req))
+			printk("io_thread - write failed, fd = %d, err = %d\n",
+			       kernel_fd, -n);
+	}
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */

arch/um/drivers/ubd_user.c

@@ -0,0 +1,75 @@
+/* 
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2001 Ridgerun,Inc (glonnon@ridgerun.com)
+ * Licensed under the GPL
+ */
+
+#include <stddef.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sched.h>
+#include <signal.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <sys/mman.h>
+#include <sys/param.h>
+#include "asm/types.h"
+#include "user_util.h"
+#include "kern_util.h"
+#include "user.h"
+#include "ubd_user.h"
+#include "os.h"
+#include "cow.h"
+
+#include <endian.h>
+#include <byteswap.h>
+
+void ignore_sigwinch_sig(void)
+{
+	signal(SIGWINCH, SIG_IGN);
+}
+
+int start_io_thread(unsigned long sp, int *fd_out)
+{
+	int pid, fds[2], err;
+
+	err = os_pipe(fds, 1, 1);
+	if(err < 0){
+		printk("start_io_thread - os_pipe failed, err = %d\n", -err);
+		goto out;
+	}
+
+	kernel_fd = fds[0];
+	*fd_out = fds[1];
+
+	pid = clone(io_thread, (void *) sp, CLONE_FILES | CLONE_VM | SIGCHLD,
+		    NULL);
+	if(pid < 0){
+		printk("start_io_thread - clone failed : errno = %d\n", errno);
+		err = -errno;
+		goto out_close;
+	}
+
+	return(pid);
+
+ out_close:
+	os_close_file(fds[0]);
+	os_close_file(fds[1]);
+	kernel_fd = -1;
+	*fd_out = -1;
+ out:
+	return(err);
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */

arch/um/include/aio.h

@@ -14,27 +14,15 @@ struct aio_thread_reply {
 };
 
 struct aio_context {
-	enum aio_type type;
-	int fd;
-	void *data;
-	int len;
-	unsigned long long offset;
 	int reply_fd;
 	struct aio_context *next;
 };
 
-#define INIT_AIO(aio_type, aio_fd, aio_data, aio_len, aio_offset, \
-		 aio_reply_fd) \
-	{ .type 	= aio_type, \
-	  .fd		= aio_fd, \
-	  .data		= aio_data, \
-	  .len		= aio_len, \
-	  .offset	= aio_offset, \
-	  .reply_fd	= aio_reply_fd }
-
 #define INIT_AIO_CONTEXT { .reply_fd	= -1, \
 			   .next	= NULL }
 
-extern int submit_aio(struct aio_context *aio);
+extern int submit_aio(enum aio_type type, int fd, char *buf, int len,
+		      unsigned long long offset, int reply_fd,
+                      struct aio_context *aio);
 
 #endif

arch/um/include/os.h

@@ -6,6 +6,7 @@
 #ifndef __OS_H__
 #define __OS_H__
 
+#include "uml-config.h"
 #include "asm/types.h"
 #include "../os/include/file.h"
 
@@ -159,7 +160,11 @@ extern int can_do_skas(void);
 
 /* Make sure they are clear when running in TT mode. Required by
  * SEGV_MAYBE_FIXABLE */
+#ifdef UML_CONFIG_MODE_SKAS
 #define clear_can_do_skas() do { ptrace_faultinfo = proc_mm = 0; } while (0)
+#else
+#define clear_can_do_skas() do {} while (0)
+#endif
 
 /* mem.c */
 extern int create_mem_file(unsigned long len);

arch/um/os-Linux/aio.c

@@ -6,7 +6,6 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <signal.h>
-#include <string.h>
 #include <errno.h>
 #include <sched.h>
 #include <sys/syscall.h>
@@ -17,31 +16,18 @@
 #include "user.h"
 #include "mode.h"
 
+struct aio_thread_req {
+        enum aio_type type;
+        int io_fd;
+        unsigned long long offset;
+        char *buf;
+        int len;
+        struct aio_context *aio;
+};
+
 static int aio_req_fd_r = -1;
 static int aio_req_fd_w = -1;
 
-static int update_aio(struct aio_context *aio, int res)
-{
-        if(res < 0)
-                aio->len = res;
-        else if((res == 0) && (aio->type == AIO_READ)){
-                /* This is the EOF case - we have hit the end of the file
-                 * and it ends in a partial block, so we fill the end of
-                 * the block with zeros and claim success.
-                 */
-                memset(aio->data, 0, aio->len);
-                aio->len = 0;
-        }
-        else if(res > 0){
-                aio->len -= res;
-                aio->data += res;
-                aio->offset += res;
-                return aio->len;
-        }
-
-        return 0;
-}
-
 #if defined(HAVE_AIO_ABI)
 #include <linux/aio_abi.h>
 
@@ -80,7 +66,8 @@ static long io_getevents(aio_context_t ctx_id, long min_nr, long nr,
  * that it now backs the mmapped area.
  */
 
-static int do_aio(aio_context_t ctx, struct aio_context *aio)
+static int do_aio(aio_context_t ctx, enum aio_type type, int fd, char *buf,
+                  int len, unsigned long long offset, struct aio_context *aio)
 {
         struct iocb iocb, *iocbp = &iocb;
         char c;
@@ -88,39 +75,40 @@ static int do_aio(aio_context_t ctx, struct aio_context *aio)
 
         iocb = ((struct iocb) { .aio_data 	= (unsigned long) aio,
                                 .aio_reqprio	= 0,
-                                .aio_fildes	= aio->fd,
+                                .aio_fildes	= fd,
-                                .aio_buf	= (unsigned long) aio->data,
+                                .aio_buf	= (unsigned long) buf,
-                                .aio_nbytes	= aio->len,
+                                .aio_nbytes	= len,
-                                .aio_offset	= aio->offset,
+                                .aio_offset	= offset,
                                 .aio_reserved1	= 0,
                                 .aio_reserved2	= 0,
                                 .aio_reserved3	= 0 });
 
-        switch(aio->type){
+        switch(type){
         case AIO_READ:
                 iocb.aio_lio_opcode = IOCB_CMD_PREAD;
+                err = io_submit(ctx, 1, &iocbp);
                 break;
         case AIO_WRITE:
                 iocb.aio_lio_opcode = IOCB_CMD_PWRITE;
+                err = io_submit(ctx, 1, &iocbp);
                 break;
         case AIO_MMAP:
                 iocb.aio_lio_opcode = IOCB_CMD_PREAD;
                 iocb.aio_buf = (unsigned long) &c;
                 iocb.aio_nbytes = sizeof(c);
+                err = io_submit(ctx, 1, &iocbp);
                 break;
         default:
-                printk("Bogus op in do_aio - %d\n", aio->type);
+                printk("Bogus op in do_aio - %d\n", type);
                 err = -EINVAL;
-                goto out;
+                break;
         }
 
-        err = io_submit(ctx, 1, &iocbp);
         if(err > 0)
                 err = 0;
 	else
 		err = -errno;
 
- out:
         return err;
 }
 
@@ -129,9 +117,8 @@ static aio_context_t ctx = 0;
 static int aio_thread(void *arg)
 {
         struct aio_thread_reply reply;
-        struct aio_context *aio;
         struct io_event event;
-        int err, n;
+        int err, n, reply_fd;
 
         signal(SIGWINCH, SIG_IGN);
 
@@ -144,22 +131,14 @@ static int aio_thread(void *arg)
                                "errno = %d\n", errno);
                 }
                 else {
-			/* This is safe as we've just a pointer here. */
-			aio = (struct aio_context *) (long) event.data;
-			if(update_aio(aio, event.res)){
-				do_aio(ctx, aio);
-				continue;
-			}
-
                         reply = ((struct aio_thread_reply)
-				{ .data = aio,
+				 { .data = (void *) (long) event.data,
-				  .err	= aio->len });
+				   .err	= event.res });
-			err = os_write_file(aio->reply_fd, &reply,
+			reply_fd = ((struct aio_context *) reply.data)->reply_fd;
-					    sizeof(reply));
+			err = os_write_file(reply_fd, &reply, sizeof(reply));
                         if(err != sizeof(reply))
-				printk("aio_thread - write failed, "
+				printk("aio_thread - write failed, fd = %d, "
-				       "fd = %d, err = %d\n", aio->reply_fd,
+                                       "err = %d\n", aio_req_fd_r, -err);
-				       -err);
                 }
         }
         return 0;
@@ -167,35 +146,35 @@ static int aio_thread(void *arg)
 
 #endif
 
-static int do_not_aio(struct aio_context *aio)
+static int do_not_aio(struct aio_thread_req *req)
 {
         char c;
         int err;
 
-        switch(aio->type){
+        switch(req->type){
         case AIO_READ:
-                err = os_seek_file(aio->fd, aio->offset);
+                err = os_seek_file(req->io_fd, req->offset);
                 if(err)
                         goto out;
 
-                err = os_read_file(aio->fd, aio->data, aio->len);
+                err = os_read_file(req->io_fd, req->buf, req->len);
                 break;
         case AIO_WRITE:
-                err = os_seek_file(aio->fd, aio->offset);
+                err = os_seek_file(req->io_fd, req->offset);
                 if(err)
                         goto out;
 
-                err = os_write_file(aio->fd, aio->data, aio->len);
+                err = os_write_file(req->io_fd, req->buf, req->len);
                 break;
         case AIO_MMAP:
-                err = os_seek_file(aio->fd, aio->offset);
+                err = os_seek_file(req->io_fd, req->offset);
                 if(err)
                         goto out;
 
-                err = os_read_file(aio->fd, &c, sizeof(c));
+                err = os_read_file(req->io_fd, &c, sizeof(c));
                 break;
         default:
-                printk("do_not_aio - bad request type : %d\n", aio->type);
+                printk("do_not_aio - bad request type : %d\n", req->type);
                 err = -EINVAL;
                 break;
         }
@@ -206,14 +185,14 @@ static int do_not_aio(struct aio_context *aio)
 
 static int not_aio_thread(void *arg)
 {
-        struct aio_context *aio;
+        struct aio_thread_req req;
         struct aio_thread_reply reply;
         int err;
 
         signal(SIGWINCH, SIG_IGN);
         while(1){
-                err = os_read_file(aio_req_fd_r, &aio, sizeof(aio));
+                err = os_read_file(aio_req_fd_r, &req, sizeof(req));
-                if(err != sizeof(aio)){
+                if(err != sizeof(req)){
                         if(err < 0)
                                 printk("not_aio_thread - read failed, "
                                        "fd = %d, err = %d\n", aio_req_fd_r,
@@ -224,34 +203,17 @@ static int not_aio_thread(void *arg)
                         }
                         continue;
                 }
- again:
+                err = do_not_aio(&req);
-                err = do_not_aio(aio);
+                reply = ((struct aio_thread_reply) { .data 	= req.aio,
-
+                                                     .err	= err });
-                if(update_aio(aio, err))
+                err = os_write_file(req.aio->reply_fd, &reply, sizeof(reply));
-                        goto again;
-
-                reply = ((struct aio_thread_reply) { .data 	= aio,
-                                                     .err	= aio->len });
-                err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
                 if(err != sizeof(reply))
                         printk("not_aio_thread - write failed, fd = %d, "
                                "err = %d\n", aio_req_fd_r, -err);
         }
 }
 
-static int submit_aio_24(struct aio_context *aio)
-{
-        int err;
-
-        err = os_write_file(aio_req_fd_w, &aio, sizeof(aio));
-        if(err == sizeof(aio))
-                err = 0;
-
-        return err;
-}
-
 static int aio_pid = -1;
-static int (*submit_proc)(struct aio_context *aio);
 
 static int init_aio_24(void)
 {
@@ -283,33 +245,11 @@ static int init_aio_24(void)
 #endif
 	printk("2.6 host AIO support not used - falling back to I/O "
 	       "thread\n");
-
-	submit_proc = submit_aio_24;
-
         return 0;
 }
 
 #ifdef HAVE_AIO_ABI
 #define DEFAULT_24_AIO 0
-static int submit_aio_26(struct aio_context *aio)
-{
-	struct aio_thread_reply reply;
-	int err;
-
-	err = do_aio(ctx, aio);
-	if(err){
-		reply = ((struct aio_thread_reply) { .data = aio,
-					             .err  = err });
-		err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
-		if(err != sizeof(reply))
-			printk("submit_aio_26 - write failed, "
-			       "fd = %d, err = %d\n", aio->reply_fd, -err);
-		else err = 0;
-	}
-
-	return err;
-}
-
 static int init_aio_26(void)
 {
         unsigned long stack;
@@ -330,22 +270,39 @@ static int init_aio_26(void)
         aio_pid = err;
 
 	printk("Using 2.6 host AIO\n");
-
-	submit_proc = submit_aio_26;
-
         return 0;
 }
 
+static int submit_aio_26(enum aio_type type, int io_fd, char *buf, int len,
+			 unsigned long long offset, struct aio_context *aio)
+{
+        struct aio_thread_reply reply;
+        int err;
+
+        err = do_aio(ctx, type, io_fd, buf, len, offset, aio);
+        if(err){
+                reply = ((struct aio_thread_reply) { .data = aio,
+                                                     .err  = err });
+                err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
+                if(err != sizeof(reply))
+                        printk("submit_aio_26 - write failed, "
+                               "fd = %d, err = %d\n", aio->reply_fd, -err);
+                else err = 0;
+        }
+
+        return err;
+}
+
 #else
 #define DEFAULT_24_AIO 1
-static int submit_aio_26(struct aio_context *aio)
+static int init_aio_26(void)
 {
         return -ENOSYS;
 }
 
-static int init_aio_26(void)
+static int submit_aio_26(enum aio_type type, int io_fd, char *buf, int len,
+			 unsigned long long offset, struct aio_context *aio)
 {
-	submit_proc = submit_aio_26;
         return -ENOSYS;
 }
 #endif
@@ -412,7 +369,33 @@ static void exit_aio(void)
 
 __uml_exitcall(exit_aio);
 
-int submit_aio(struct aio_context *aio)
+static int submit_aio_24(enum aio_type type, int io_fd, char *buf, int len,
+			 unsigned long long offset, struct aio_context *aio)
 {
-	return (*submit_proc)(aio);
+        struct aio_thread_req req = { .type 		= type,
+                                      .io_fd		= io_fd,
+                                      .offset		= offset,
+                                      .buf		= buf,
+                                      .len		= len,
+                                      .aio		= aio,
+        };
+        int err;
+
+        err = os_write_file(aio_req_fd_w, &req, sizeof(req));
+        if(err == sizeof(req))
+                err = 0;
+
+        return err;
+}
+
+int submit_aio(enum aio_type type, int io_fd, char *buf, int len,
+               unsigned long long offset, int reply_fd,
+               struct aio_context *aio)
+{
+        aio->reply_fd = reply_fd;
+        if(aio_24)
+                return submit_aio_24(type, io_fd, buf, len, offset, aio);
+        else {
+                return submit_aio_26(type, io_fd, buf, len, offset, aio);
+        }
 }

arch/um/os-Linux/start_up.c

@@ -143,11 +143,22 @@ static int __init skas0_cmd_param(char *str, int* add)
 	return 0;
 }
 
+/* The two __uml_setup would conflict, without this stupid alias. */
+
+static int __init mode_skas0_cmd_param(char *str, int* add)
+	__attribute__((alias("skas0_cmd_param")));
+
 __uml_setup("skas0", skas0_cmd_param,
 		"skas0\n"
 		"    Disables SKAS3 usage, so that SKAS0 is used, unless \n"
 	        "    you specify mode=tt.\n\n");
 
+__uml_setup("mode=skas0", mode_skas0_cmd_param,
+		"mode=skas0\n"
+		"    Disables SKAS3 usage, so that SKAS0 is used, unless you \n"
+		"    specify mode=tt. Note that this was recently added - on \n"
+		"    older kernels you must use simply \"skas0\".\n\n");
+
 static int force_sysemu_disabled = 0;
 
 static int __init nosysemu_cmd_param(char *str, int* add)

arch/um/scripts/Makefile.rules

@@ -7,8 +7,8 @@ USER_SINGLE_OBJS := \
 USER_OBJS += $(filter %_user.o,$(obj-y) $(obj-m)  $(USER_SINGLE_OBJS))
 USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
 
-$(USER_OBJS) : c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) \
+$(USER_OBJS) $(USER_OBJS:.o=.i) $(USER_OBJS:.o=.s) $(USER_OBJS:.o=.lst): \
-	$(CFLAGS_$(notdir $@))
+	c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(notdir $@))
 $(USER_OBJS): cmd_checksrc =
 $(USER_OBJS): quiet_cmd_checksrc =
 $(USER_OBJS): cmd_force_checksrc =

arch/um/sys-x86_64/stub_segv.c

@@ -10,6 +10,22 @@
 #include "uml-config.h"
 #include "sysdep/sigcontext.h"
 #include "sysdep/faultinfo.h"
+#include <stddef.h>
+
+/* Copied from sys-x86_64/signal.c - Can't find an equivalent definition
+ * in the libc headers anywhere.
+ */
+struct rt_sigframe
+{
+	char *pretcode;
+	struct ucontext uc;
+	struct siginfo info;
+};
+
+/* Copied here from <linux/kernel.h> - we're userspace. */
+#define container_of(ptr, type, member) ({                   \
+	const typeof( ((type *)0)->member ) *__mptr = (ptr); \
+	(type *)( (char *)__mptr - offsetof(type,member) );})
 
 void __attribute__ ((__section__ (".__syscall_stub")))
 stub_segv_handler(int sig)
@@ -17,16 +33,19 @@ stub_segv_handler(int sig)
 	struct ucontext *uc;
 
 	__asm__("movq %%rdx, %0" : "=g" (uc) :);
-        GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
+	GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
-                              &uc->uc_mcontext);
+			      &uc->uc_mcontext);
 
-	__asm__("movq %0, %%rax ; syscall": : "g" (__NR_getpid));
+	__asm__("movq %0, %%rax ; syscall": : "g" (__NR_getpid));	
 	__asm__("movq %%rax, %%rdi ; movq %0, %%rax ; movq %1, %%rsi ;"
-		"syscall": : "g" (__NR_kill), "g" (SIGUSR1));
+		"syscall": : "g" (__NR_kill), "g" (SIGUSR1) : 
-	/* Two popqs to restore the stack to the state just before entering
+		"%rdi", "%rax", "%rsi");
-	 * the handler, one pops the return address, the other pops the frame
+	/* sys_sigreturn expects that the stack pointer will be 8 bytes into
-	 * pointer.
+	 * the signal frame.  So, we use the ucontext pointer, which we know
+	 * already, to get the signal frame pointer, and add 8 to that.
 	 */
-	__asm__("popq %%rax ; popq %%rax ; movq %0, %%rax ; syscall" : : "g"
+	__asm__("movq %0, %%rsp": : 
-		(__NR_rt_sigreturn));
+		"g" ((unsigned long) container_of(uc, struct rt_sigframe, 
+						  uc) + 8));
+	__asm__("movq %0, %%rax ; syscall" : : "g" (__NR_rt_sigreturn));
 }

arch/x86_64/ia32/ia32_signal.c

@@ -425,7 +425,11 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
 		rsp = (unsigned long) ka->sa.sa_restorer;
 	}
 
-	return (void __user *)((rsp - frame_size) & -8UL);
+	rsp -= frame_size;
+	/* Align the stack pointer according to the i386 ABI,
+	 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
+	rsp = ((rsp + 4) & -16ul) - 4;
+	return (void __user *) rsp;
 }
 
 int ia32_setup_frame(int sig, struct k_sigaction *ka,

arch/x86_64/kernel/setup64.c

@@ -87,6 +87,10 @@ void __init setup_per_cpu_areas(void)
 	int i;
 	unsigned long size;
 
+#ifdef CONFIG_HOTPLUG_CPU
+	prefill_possible_map();
+#endif
+
 	/* Copy section for each CPU (we discard the original) */
 	size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
 #ifdef CONFIG_MODULES

arch/x86_64/kernel/smpboot.c

@@ -892,7 +892,7 @@ static __init void disable_smp(void)
  * those NR_CPUS, hence cpu_possible_map represents entire NR_CPUS range.
  * - Ashok Raj
  */
-static void prefill_possible_map(void)
+__init void prefill_possible_map(void)
 {
 	int i;
 	for (i = 0; i < NR_CPUS; i++)
@@ -967,10 +967,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	current_cpu_data = boot_cpu_data;
 	current_thread_info()->cpu = 0;  /* needed? */
 
-#ifdef CONFIG_HOTPLUG_CPU
-	prefill_possible_map();
-#endif
-
 	if (smp_sanity_check(max_cpus) < 0) {
 		printk(KERN_INFO "SMP disabled\n");
 		disable_smp();

arch/x86_64/kernel/suspend.c

@@ -11,6 +11,8 @@
 #include <linux/smp.h>
 #include <linux/suspend.h>
 #include <asm/proto.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
 
 struct saved_context saved_context;
 
@@ -140,4 +142,129 @@ void fix_processor_context(void)
 
 }
 
+#ifdef CONFIG_SOFTWARE_SUSPEND
+/* Defined in arch/x86_64/kernel/suspend_asm.S */
+extern int restore_image(void);
 
+pgd_t *temp_level4_pgt;
+
+static void **pages;
+
+static inline void *__add_page(void)
+{
+	void **c;
+
+	c = (void **)get_usable_page(GFP_ATOMIC);
+	if (c) {
+		*c = pages;
+		pages = c;
+	}
+	return c;
+}
+
+static inline void *__next_page(void)
+{
+	void **c;
+
+	c = pages;
+	if (c) {
+		pages = *c;
+		*c = NULL;
+	}
+	return c;
+}
+
+/*
+ * Try to allocate as many usable pages as needed and daisy chain them.
+ * If one allocation fails, free the pages allocated so far
+ */
+static int alloc_usable_pages(unsigned long n)
+{
+	void *p;
+
+	pages = NULL;
+	do
+		if (!__add_page())
+			break;
+	while (--n);
+	if (n) {
+		p = __next_page();
+		while (p) {
+			free_page((unsigned long)p);
+			p = __next_page();
+		}
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+static void res_phys_pud_init(pud_t *pud, unsigned long address, unsigned long end)
+{
+	long i, j;
+
+	i = pud_index(address);
+	pud = pud + i;
+	for (; i < PTRS_PER_PUD; pud++, i++) {
+		unsigned long paddr;
+		pmd_t *pmd;
+
+		paddr = address + i*PUD_SIZE;
+		if (paddr >= end)
+			break;
+
+		pmd = (pmd_t *)__next_page();
+		set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE));
+		for (j = 0; j < PTRS_PER_PMD; pmd++, j++, paddr += PMD_SIZE) {
+			unsigned long pe;
+
+			if (paddr >= end)
+				break;
+			pe = _PAGE_NX | _PAGE_PSE | _KERNPG_TABLE | paddr;
+			pe &= __supported_pte_mask;
+			set_pmd(pmd, __pmd(pe));
+		}
+	}
+}
+
+static void set_up_temporary_mappings(void)
+{
+	unsigned long start, end, next;
+
+	temp_level4_pgt = (pgd_t *)__next_page();
+
+	/* It is safe to reuse the original kernel mapping */
+	set_pgd(temp_level4_pgt + pgd_index(__START_KERNEL_map),
+		init_level4_pgt[pgd_index(__START_KERNEL_map)]);
+
+	/* Set up the direct mapping from scratch */
+	start = (unsigned long)pfn_to_kaddr(0);
+	end = (unsigned long)pfn_to_kaddr(end_pfn);
+
+	for (; start < end; start = next) {
+		pud_t *pud = (pud_t *)__next_page();
+		next = start + PGDIR_SIZE;
+		if (next > end)
+			next = end;
+		res_phys_pud_init(pud, __pa(start), __pa(next));
+		set_pgd(temp_level4_pgt + pgd_index(start),
+			mk_kernel_pgd(__pa(pud)));
+	}
+}
+
+int swsusp_arch_resume(void)
+{
+	unsigned long n;
+
+	n = ((end_pfn << PAGE_SHIFT) + PUD_SIZE - 1) >> PUD_SHIFT;
+	n += (n + PTRS_PER_PUD - 1) / PTRS_PER_PUD + 1;
+	pr_debug("swsusp_arch_resume(): pages needed = %lu\n", n);
+	if (alloc_usable_pages(n)) {
+		free_eaten_memory();
+		return -ENOMEM;
+	}
+	/* We have got enough memory and from now on we cannot recover */
+	set_up_temporary_mappings();
+	restore_image();
+	return 0;
+}
+#endif /* CONFIG_SOFTWARE_SUSPEND */

arch/x86_64/kernel/suspend_asm.S

@@ -39,12 +39,13 @@ ENTRY(swsusp_arch_suspend)
 	call swsusp_save
 	ret
 
-ENTRY(swsusp_arch_resume)
+ENTRY(restore_image)
-	/* set up cr3 */	
+	/* switch to temporary page tables */
-	leaq	init_level4_pgt(%rip),%rax
+	movq	$__PAGE_OFFSET, %rdx
-	subq	$__START_KERNEL_map,%rax
+	movq	temp_level4_pgt(%rip), %rax
-	movq	%rax,%cr3
+	subq	%rdx, %rax
-
+	movq	%rax, %cr3
+	/* Flush TLB */
 	movq	mmu_cr4_features(%rip), %rax
 	movq	%rax, %rdx
 	andq	$~(1<<7), %rdx	# PGE
@@ -69,6 +70,10 @@ loop:
 	movq	pbe_next(%rdx), %rdx
 	jmp	loop
 done:
+	/* go back to the original page tables */
+	leaq	init_level4_pgt(%rip), %rax
+	subq	$__START_KERNEL_map, %rax
+	movq	%rax, %cr3
 	/* Flush TLB, including "global" things (vmalloc) */
 	movq	mmu_cr4_features(%rip), %rax
 	movq	%rax, %rdx

arch/x86_64/mm/pageattr.c

@@ -220,8 +220,6 @@ void global_flush_tlb(void)
 	down_read(&init_mm.mmap_sem);
 	df = xchg(&df_list, NULL);
 	up_read(&init_mm.mmap_sem);
-	if (!df)
-		return;
 	flush_map((df && !df->next) ? df->address : 0);
 	for (; df; df = next_df) { 
 		next_df = df->next;

drivers/acpi/event.c

@@ -58,9 +58,8 @@ acpi_system_read_event(struct file *file, char __user * buffer, size_t count,
 			return_VALUE(-EAGAIN);
 
 		result = acpi_bus_receive_event(&event);
-		if (result) {
+		if (result)
-			return_VALUE(-EIO);
+			return_VALUE(result);
-		}
 
 		chars_remaining = sprintf(str, "%s %s %08x %08x\n",
 					  event.device_class ? event.

drivers/atm/ambassador.c

@@ -795,7 +795,7 @@ static void drain_rx_pools (amb_dev * dev) {
 }
 
 static inline void fill_rx_pool (amb_dev * dev, unsigned char pool,
-                                 unsigned int __nocast priority)
+                                 gfp_t priority)
 {
   rx_in rx;
   amb_rxq * rxq;

drivers/atm/firestream.c

@@ -1374,8 +1374,7 @@ static void reset_chip (struct fs_dev *dev)
 	}
 }
 
-static void __devinit *aligned_kmalloc (int size, unsigned int __nocast flags,
+static void __devinit *aligned_kmalloc (int size, gfp_t flags, int alignment)
-					int alignment)
 {
 	void  *t;
 
@@ -1466,7 +1465,7 @@ static inline int nr_buffers_in_freepool (struct fs_dev *dev, struct freepool *f
    working again after that...  -- REW */
 
 static void top_off_fp (struct fs_dev *dev, struct freepool *fp,
-			unsigned int __nocast gfp_flags)
+			gfp_t gfp_flags)
 {
 	struct FS_BPENTRY *qe, *ne;
 	struct sk_buff *skb;

drivers/atm/fore200e.c

@@ -178,7 +178,7 @@ fore200e_irq_itoa(int irq)
 
 
 static void*
-fore200e_kmalloc(int size, unsigned int __nocast flags)
+fore200e_kmalloc(int size, gfp_t flags)
 {
     void *chunk = kzalloc(size, flags);
 

drivers/base/dmapool.c

@@ -156,7 +156,7 @@ dma_pool_create (const char *name, struct device *dev,
 
 
 static struct dma_page *
-pool_alloc_page (struct dma_pool *pool, unsigned int __nocast mem_flags)
+pool_alloc_page (struct dma_pool *pool, gfp_t mem_flags)
 {
 	struct dma_page	*page;
 	int		mapsize;
@@ -262,8 +262,7 @@ dma_pool_destroy (struct dma_pool *pool)
  * If such a memory block can't be allocated, null is returned.
  */
 void *
-dma_pool_alloc (struct dma_pool *pool, unsigned int __nocast mem_flags,
+dma_pool_alloc (struct dma_pool *pool, gfp_t mem_flags, dma_addr_t *handle)
-		dma_addr_t *handle)
 {
 	unsigned long		flags;
 	struct dma_page		*page;

drivers/block/pktcdvd.c

@@ -229,7 +229,7 @@ static int pkt_grow_pktlist(struct pktcdvd_device *pd, int nr_packets)
 	return 1;
 }
 
-static void *pkt_rb_alloc(unsigned int __nocast gfp_mask, void *data)
+static void *pkt_rb_alloc(gfp_t gfp_mask, void *data)
 {
 	return kmalloc(sizeof(struct pkt_rb_node), gfp_mask);
 }
@@ -2082,7 +2082,7 @@ static int pkt_close(struct inode *inode, struct file *file)
 }
 
 
-static void *psd_pool_alloc(unsigned int __nocast gfp_mask, void *data)
+static void *psd_pool_alloc(gfp_t gfp_mask, void *data)
 {
 	return kmalloc(sizeof(struct packet_stacked_data), gfp_mask);
 }

drivers/block/scsi_ioctl.c

@@ -201,15 +201,15 @@ static int verify_command(struct file *file, unsigned char *cmd)
 			return 0;
 	}
 
+	/* And root can do any command.. */
+	if (capable(CAP_SYS_RAWIO))
+		return 0;
+
 	if (!type) {
 		cmd_type[cmd[0]] = CMD_WARNED;
 		printk(KERN_WARNING "scsi: unknown opcode 0x%02x\n", cmd[0]);
 	}
 
-	/* And root can do any command.. */
-	if (capable(CAP_SYS_RAWIO))
-		return 0;
-
 	/* Otherwise fail it with an "Operation not permitted" */
 	return -EPERM;
 }

drivers/bluetooth/bpa10x.c

@@ -308,7 +308,7 @@ static void bpa10x_complete(struct urb *urb, struct pt_regs *regs)
 }
 
 static inline struct urb *bpa10x_alloc_urb(struct usb_device *udev, unsigned int pipe,
-					size_t size, unsigned int __nocast flags, void *data)
+					size_t size, gfp_t flags, void *data)
 {
 	struct urb *urb;
 	struct usb_ctrlrequest *cr;