Merge samba.org:/scratch/anton/linux-2.5

into samba.org:/scratch/anton/tmp3

arch/ppc64/Makefile

@@ -18,7 +18,13 @@ KERNELLOAD	:= 0xc000000000000000
 LDFLAGS		:= -m elf64ppc
 LDFLAGS_vmlinux	:= -Bstatic -e $(KERNELLOAD) -Ttext $(KERNELLOAD)
 CFLAGS		+= -msoft-float -pipe -Wno-uninitialized -mminimal-toc \
-		-mtraceback=full -mcpu=power4
+		-mcpu=power4
+
+have_zero_bss := $(shell if $(CC) -fno-zero-initialized-in-bss -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
+
+ifeq ($(have_zero_bss),y)
+CFLAGS		+= -fno-zero-initialized-in-bss
+endif
 
 head-y := arch/ppc64/kernel/head.o
 
@@ -39,6 +45,12 @@ $(boottarget-y): vmlinux
 	rm -f .config arch/ppc64/defconfig
 	cp -f arch/ppc64/configs/$(@:config=defconfig) arch/ppc64/defconfig
 
+bootimage-$(CONFIG_PPC_PSERIES) := zImage
+bootimage-$(CONFIG_PPC_ISERIES) := vmlinux.sm
+BOOTIMAGE := $(bootimage-y)
+install: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
+
 archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
 

arch/ppc64/boot/Makefile

@@ -122,5 +122,7 @@ $(obj)/imagesize.c: vmlinux
 	awk '{printf "unsigned long vmlinux_memsize = 0x%s;\n", substr($$1,8)}' \
 		>> $(obj)/imagesize.c
 
+install: $(CONFIGURE) $(obj)/$(BOOTIMAGE)
+	sh -x $(src)/install.sh "$(KERNELRELEASE)" "$(obj)/$(BOOTIMAGE)" "$(TOPDIR)/System.map" "$(INSTALL_PATH)"
 
 clean-files := $(patsubst $(obj)/%,%, $(obj-boot))

arch/ppc64/boot/install.sh

+#!/bin/sh
+#
+# arch/ppc64/boot/install.sh
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1995 by Linus Torvalds
+#
+# Blatantly stolen from in arch/i386/boot/install.sh by Dave Hansen 
+#
+# "make install" script for ppc64 architecture
+#
+# Arguments:
+#   $1 - kernel version
+#   $2 - kernel image file
+#   $3 - kernel map file
+#   $4 - default install path (blank if root directory)
+#
+
+# User may have a custom install script
+
+if [ -x ~/bin/installkernel ]; then exec ~/bin/installkernel "$@"; fi
+if [ -x /sbin/installkernel ]; then exec /sbin/installkernel "$@"; fi
+
+# Default install
+
+# this should work for both the pSeries zImage and the iSeries vmlinux.sm
+image_name=`basename $2`
+
+if [ -f $4/$image_name ]; then
+	mv $4/$image_name $4/$image_name.old
+fi
+
+if [ -f $4/System.map ]; then
+	mv $4/System.map $4/System.old
+fi
+
+cat $2 > $4/$image_name
+cp $3 $4/System.map

arch/ppc64/defconfig

@@ -8,11 +8,13 @@ CONFIG_HAVE_DEC_LOCK=y
 CONFIG_EARLY_PRINTK=y
 CONFIG_COMPAT=y
 CONFIG_FRAME_POINTER=y
+CONFIG_FORCE_MAX_ZONEORDER=13
 
 #
 # Code maturity level options
 #
 CONFIG_EXPERIMENTAL=y
+# CONFIG_BROKEN is not set
 
 #
 # General setup
@@ -21,11 +23,14 @@ CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 CONFIG_SYSCTL=y
-CONFIG_LOG_BUF_SHIFT=15
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
 # CONFIG_EMBEDDED is not set
 CONFIG_KALLSYMS=y
 CONFIG_FUTEX=y
 CONFIG_EPOLL=y
+CONFIG_IOSCHED_NOOP=y
 CONFIG_IOSCHED_AS=y
 CONFIG_IOSCHED_DEADLINE=y
 
@@ -72,7 +77,6 @@ CONFIG_PROC_DEVICETREE=y
 #
 # Generic Driver Options
 #
-# CONFIG_FW_LOADER is not set
 
 #
 # Memory Technology Devices (MTD)
@@ -99,7 +103,7 @@ CONFIG_BLK_DEV_FD=y
 # CONFIG_BLK_DEV_UMEM is not set
 CONFIG_BLK_DEV_LOOP=y
 # CONFIG_BLK_DEV_CRYPTOLOOP is not set
-CONFIG_BLK_DEV_NBD=y
+CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_INITRD=y
@@ -127,9 +131,9 @@ CONFIG_CHR_DEV_SG=y
 #
 # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
 #
-# CONFIG_SCSI_MULTI_LUN is not set
-# CONFIG_SCSI_REPORT_LUNS is not set
-# CONFIG_SCSI_CONSTANTS is not set
+CONFIG_SCSI_MULTI_LUN=y
+CONFIG_SCSI_REPORT_LUNS=y
+CONFIG_SCSI_CONSTANTS=y
 # CONFIG_SCSI_LOGGING is not set
 
 #
@@ -178,7 +182,8 @@ CONFIG_MD_RAID0=y
 CONFIG_MD_RAID1=y
 CONFIG_MD_RAID5=y
 # CONFIG_MD_MULTIPATH is not set
-# CONFIG_BLK_DEV_DM is not set
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_IOCTL_V4=y
 
 #
 # Fusion MPT device support
@@ -206,9 +211,8 @@ CONFIG_NET=y
 CONFIG_PACKET=y
 # CONFIG_PACKET_MMAP is not set
 # CONFIG_NETLINK_DEV is not set
-# CONFIG_NETFILTER is not set
 CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
+CONFIG_NET_KEY=m
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 # CONFIG_IP_ADVANCED_ROUTER is not set
@@ -217,13 +221,17 @@ CONFIG_NET_IPIP=y
 # CONFIG_NET_IPGRE is not set
 # CONFIG_IP_MROUTE is not set
 # CONFIG_ARPD is not set
-# CONFIG_INET_ECN is not set
+CONFIG_INET_ECN=y
 CONFIG_SYN_COOKIES=y
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_IPCOMP=m
 # CONFIG_IPV6 is not set
-# CONFIG_XFRM_USER is not set
+# CONFIG_DECNET is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_NETFILTER is not set
+CONFIG_XFRM=y
+CONFIG_XFRM_USER=m
 
 #
 # SCTP Configuration (EXPERIMENTAL)
@@ -233,8 +241,6 @@ CONFIG_IPV6_SCTP__=y
 # CONFIG_ATM is not set
 # CONFIG_VLAN_8021Q is not set
 # CONFIG_LLC is not set
-# CONFIG_DECNET is not set
-# CONFIG_BRIDGE is not set
 # CONFIG_X25 is not set
 # CONFIG_LAPB is not set
 # CONFIG_NET_DIVERT is not set
@@ -258,10 +264,10 @@ CONFIG_NETDEVICES=y
 # ARCnet devices
 #
 # CONFIG_ARCNET is not set
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
+CONFIG_DUMMY=m
+CONFIG_BONDING=m
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=m
 # CONFIG_ETHERTAP is not set
 
 #
@@ -312,6 +318,7 @@ CONFIG_E1000=y
 # CONFIG_HAMACHI is not set
 # CONFIG_YELLOWFIN is not set
 # CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
 # CONFIG_SK98LIN is not set
 # CONFIG_TIGON3 is not set
 
@@ -321,7 +328,14 @@ CONFIG_E1000=y
 # CONFIG_IXGB is not set
 # CONFIG_FDDI is not set
 # CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
+CONFIG_PPP=m
+# CONFIG_PPP_MULTILINK is not set
+# CONFIG_PPP_FILTER is not set
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPPOE=m
 # CONFIG_SLIP is not set
 
 #
@@ -489,26 +503,32 @@ CONFIG_RAW_DRIVER=y
 # File systems
 #
 CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+# CONFIG_EXT2_FS_SECURITY is not set
 CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
+CONFIG_EXT3_FS_XATTR=y
+CONFIG_EXT3_FS_POSIX_ACL=y
+# CONFIG_EXT3_FS_SECURITY is not set
 CONFIG_JBD=y
 # CONFIG_JBD_DEBUG is not set
+CONFIG_FS_MBCACHE=y
 CONFIG_REISERFS_FS=y
 # CONFIG_REISERFS_CHECK is not set
 # CONFIG_REISERFS_PROC_INFO is not set
 CONFIG_JFS_FS=y
-# CONFIG_JFS_POSIX_ACL is not set
+CONFIG_JFS_POSIX_ACL=y
 # CONFIG_JFS_DEBUG is not set
 # CONFIG_JFS_STATISTICS is not set
-CONFIG_XFS_FS=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_XFS_FS=m
 # CONFIG_XFS_RT is not set
 # CONFIG_XFS_QUOTA is not set
-# CONFIG_XFS_POSIX_ACL is not set
+CONFIG_XFS_POSIX_ACL=y
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
 # CONFIG_QUOTA is not set
-CONFIG_AUTOFS_FS=y
+CONFIG_AUTOFS_FS=m
 # CONFIG_AUTOFS4_FS is not set
 
 #
@@ -517,7 +537,7 @@ CONFIG_AUTOFS_FS=y
 CONFIG_ISO9660_FS=y
 # CONFIG_JOLIET is not set
 # CONFIG_ZISOFS is not set
-# CONFIG_UDF_FS is not set
+CONFIG_UDF_FS=m
 
 #
 # DOS/FAT/NT Filesystems
@@ -533,8 +553,9 @@ CONFIG_VFAT_FS=y
 CONFIG_PROC_FS=y
 # CONFIG_DEVFS_FS is not set
 CONFIG_DEVPTS_FS=y
-# CONFIG_DEVPTS_FS_XATTR is not set
-# CONFIG_TMPFS is not set
+CONFIG_DEVPTS_FS_XATTR=y
+# CONFIG_DEVPTS_FS_SECURITY is not set
+CONFIG_TMPFS=y
 CONFIG_RAMFS=y
 
 #
@@ -546,7 +567,7 @@ CONFIG_RAMFS=y
 # CONFIG_BEFS_FS is not set
 # CONFIG_BFS_FS is not set
 # CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
+CONFIG_CRAMFS=y
 # CONFIG_VXFS_FS is not set
 # CONFIG_HPFS_FS is not set
 # CONFIG_QNX4FS_FS is not set
@@ -561,15 +582,16 @@ CONFIG_NFS_V3=y
 CONFIG_NFS_V4=y
 CONFIG_NFSD=y
 CONFIG_NFSD_V3=y
-# CONFIG_NFSD_V4 is not set
+CONFIG_NFSD_V4=y
 CONFIG_NFSD_TCP=y
 CONFIG_LOCKD=y
 CONFIG_LOCKD_V4=y
 CONFIG_EXPORTFS=y
 CONFIG_SUNRPC=y
-# CONFIG_SUNRPC_GSS is not set
+CONFIG_SUNRPC_GSS=m
+CONFIG_RPCSEC_GSS_KRB5=m
 # CONFIG_SMB_FS is not set
-CONFIG_CIFS=y
+CONFIG_CIFS=m
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
 # CONFIG_INTERMEZZO_FS is not set
@@ -705,6 +727,7 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_XMON=y
 CONFIG_XMON_DEFAULT=y
 # CONFIG_PPCDBG is not set
+# CONFIG_DEBUG_INFO is not set
 
 #
 # Security options
@@ -714,9 +737,27 @@ CONFIG_XMON_DEFAULT=y
 #
 # Cryptographic options
 #
-# CONFIG_CRYPTO is not set
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_NULL=m
+CONFIG_CRYPTO_MD4=m
+CONFIG_CRYPTO_MD5=m
+CONFIG_CRYPTO_SHA1=m
+CONFIG_CRYPTO_SHA256=m
+CONFIG_CRYPTO_SHA512=m
+CONFIG_CRYPTO_DES=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_AES=m
+CONFIG_CRYPTO_CAST5=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_DEFLATE=m
+CONFIG_CRYPTO_TEST=m
 
 #
 # Library routines
 #
 CONFIG_CRC32=y
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=m

arch/ppc64/kernel/asm-offsets.c

@@ -83,9 +83,7 @@ int main(void)
         DEFINE(PACALPQUEUE, offsetof(struct paca_struct, lpQueuePtr));
 	DEFINE(PACATOC, offsetof(struct paca_struct, xTOC));
 	DEFINE(PACAEXCSP, offsetof(struct paca_struct, exception_sp));
-	DEFINE(PACAHRDWINTSTACK, offsetof(struct paca_struct, xHrdIntStack));
 	DEFINE(PACAPROCENABLED, offsetof(struct paca_struct, xProcEnabled));
-	DEFINE(PACAHRDWINTCOUNT, offsetof(struct paca_struct, xHrdIntCount));
 	DEFINE(PACADEFAULTDECR, offsetof(struct paca_struct, default_decr));
 	DEFINE(PACAPROFENABLED, offsetof(struct paca_struct, prof_enabled));
 	DEFINE(PACAPROFLEN, offsetof(struct paca_struct, prof_len));

arch/ppc64/kernel/chrp_setup.c

@@ -72,6 +72,7 @@ extern void openpic_init_IRQ(void);
 
 extern void find_and_init_phbs(void);
 
+extern void pSeries_get_boot_time(struct rtc_time *rtc_time);
 extern void pSeries_get_rtc_time(struct rtc_time *rtc_time);
 extern int  pSeries_set_rtc_time(struct rtc_time *rtc_time);
 void pSeries_calibrate_decr(void);
@@ -256,7 +257,7 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
 	ppc_md.power_off      = rtas_power_off;
 	ppc_md.halt           = rtas_halt;
 
-	ppc_md.get_boot_time  = pSeries_get_rtc_time;
+	ppc_md.get_boot_time  = pSeries_get_boot_time;
 	ppc_md.get_rtc_time   = pSeries_get_rtc_time;
 	ppc_md.set_rtc_time   = pSeries_set_rtc_time;
 	ppc_md.calibrate_decr = pSeries_calibrate_decr;

arch/ppc64/kernel/eeh.c

@@ -115,8 +115,17 @@ unsigned long eeh_check_failure(void *token, unsigned long val)
 		ret = rtas_call(ibm_read_slot_reset_state, 3, 3, rets,
 				dn->eeh_config_addr, BUID_HI(dn->phb->buid), BUID_LO(dn->phb->buid));
 		if (ret == 0 && rets[1] == 1 && rets[0] >= 2) {
-			panic("EEH:  MMIO failure (%ld) on device:\n  %s %s\n",
-			      rets[0], pci_name(dev), dev->dev.name);
+			/*
+			 * XXX We should create a separate sysctl for this.
+			 *
+			 * Since the panic_on_oops sysctl is used to halt
+			 * the system in light of potential corruption, we
+			 * can use it here.
+			 */
+			if (panic_on_oops)
+				panic("EEH: MMIO failure (%ld) on device:\n%s\n", rets[0], pci_name(dev));
+			else
+				printk("EEH: MMIO failure (%ld) on device:\n%s\n", rets[0], pci_name(dev));
 		}
 	}
 	eeh_false_positives++;

arch/ppc64/kernel/head.S

@@ -40,6 +40,15 @@
 #define DO_SOFT_DISABLE
 #endif
 
+/* copy saved SOFTE bit or EE bit from saved MSR depending
+ * if we are doing soft-disable or not
+ */
+#ifdef DO_SOFT_DISABLE
+#define DO_COPY_EE()	ld	r20,SOFTE(r1)
+#else
+#define DO_COPY_EE()	rldicl	r20,r23,49,63
+#endif
+
 /*
  * hcall interface to pSeries LPAR
  */
@@ -618,11 +627,7 @@ stab_bolted_user_return:
 	ld      r4,_DAR(r1)
 	ld      r5,_DSISR(r1)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
-#ifdef DO_SOFT_DISABLE
-	ld	r20,SOFTE(r1)		/* Copy saved SOFTE bit */
-#else
-	rldicl	r20,r23,49,63   	/* copy EE bit from saved MSR */
-#endif
+	DO_COPY_EE()
 	li	r6,0x300
 	bl      .save_remaining_regs
 	bl      .do_page_fault
@@ -644,12 +649,9 @@ DataAccessSLB_common:
 	or.	r3,r3,r3		/* Check return code */
 	beq     fast_exception_return   /* Return if we succeeded */
 	addi	r3,r1,STACK_FRAME_OVERHEAD
-#ifdef DO_SOFT_DISABLE
-	ld	r20,SOFTE(r1)
-#else
-	rldicl	r20,r23,49,63   	/* copy EE bit from saved MSR */
-#endif
+	DO_COPY_EE()
 	li	r6,0x380
+	li	r5,0
 	bl      .save_remaining_regs
 	bl      .do_page_fault
 	b       .ret_from_except
@@ -670,13 +672,9 @@ InstructionAccess_common:
 	bl	.do_hash_page_ISI	/* Try to handle as hpte fault */
 1:
 	mr	r4,r22
-	mr	r5,r23
+	rlwinm	r5,r23,0,4,4		/* We only care about PR in error_code */
 	addi	r3,r1,STACK_FRAME_OVERHEAD
-#ifdef DO_SOFT_DISABLE
-	ld	r20,SOFTE(r1)
-#else
-	rldicl	r20,r23,49,63   	/* copy EE bit from saved MSR */
-#endif
+	DO_COPY_EE()
 	li	r6,0x400
 	bl      .save_remaining_regs
 	bl      .do_page_fault
@@ -692,12 +690,9 @@ InstructionAccessSLB_common:
 	beq+	fast_exception_return   /* Return if we succeeded */
 
 	addi	r3,r1,STACK_FRAME_OVERHEAD
-#ifdef DO_SOFT_DISABLE
-	ld	r20,SOFTE(r1)
-#else
-	rldicl	r20,r23,49,63   	/* copy EE bit from saved MSR */
-#endif
+	DO_COPY_EE()
 	li	r6,0x480
+	li	r5,0
 	bl      .save_remaining_regs
 	bl      .do_page_fault
 	b       .ret_from_except
@@ -710,70 +705,14 @@ HardwareInterrupt_entry:
 	li	r20,0
 	li	r6,0x500
 	bl      .save_remaining_regs
-	/* Determine if need to run do_irq on a hardware interrupt stack  */
-	/*   The first invocation of do_irq will occur on the kernel      */
-	/*   stack in the current stack                                   */
-	/*   All other invocations of do_irq will run on the hardware     */
-	/*   interrupt stack associated with the PACA of the current      */
-	/*   processor.                                                   */
-	/*                                                                */
-	/*  The call to do_irq will preserve the value of r14 - r31       */
-	/*                                                                */
-/*
- * XXX turn off interrupt stacks until the thread_info stuff is fixed.
- * Otherwise we end up setting need_resched etc bits in the interrupt
- *  stack and they never get seen when we return to the process stack - Anton
- */
-#if 0
-	lbz     r21,PACAHRDWINTCOUNT(r13)    /* get hardware interrupt cnt */
-	cmpi    0,r21,1                     /*                            */
-	addi    r21,r21,1                   /* incr hardware interrupt cnt*/
-	stb     r21,PACAHRDWINTCOUNT(r13)   /*                            */
-	bne     2f                          /*                            */
-
-	mr      r14,r1                      /* preserve current r1        */
-	ld      r1,PACAHRDWINTSTACK(r13)    /*                            */
-	std     r14,0(r1)                   /* set the back chain         */
-	bl      .do_IRQ
-	lbz     r22,PACAHRDWINTCOUNT(r13)   /* get hardware interrupt cnt */
-	cmp     0,r22,r21                   /* debug test                 */
-	bne     3f
-	subi    r21,r21,1
-	stb     r21,PACAHRDWINTCOUNT(r13)   /*                            */
-	mr      r1,r14                      /*                            */
-	b       .ret_from_except
-#endif
-
-2:
 	bl      .do_IRQ
-
-#if 0
-	lbz     r22,PACAHRDWINTCOUNT(r13)   /* get hardware interrupt cnt */
-	cmp     0,r22,r21                   /* debug test                 */
-	bne     3f                          /*                            */
-	subi    r21,r21,1                   /* decr hardware interrupt cnt*/
-	stb     r21,PACAHRDWINTCOUNT(r13)   /*                            */
-#endif
-
 	b       .ret_from_except
 
-3:
-	/* error - counts out of sync                                      */
-#ifdef CONFIG_XMON
-	bl	.xmon
-#endif
-4:	b	4b
-
-
 	.globl Alignment_common
 Alignment_common:
 	EXCEPTION_PROLOG_COMMON
 	addi	r3,r1,STACK_FRAME_OVERHEAD
-#ifdef DO_SOFT_DISABLE
-	ld	r20,SOFTE(r1)
-#else
-	rldicl	r20,r23,49,63   	/* copy EE bit from saved MSR */
-#endif
+	DO_COPY_EE()
 	li	r6,0x600
 	bl      .save_remaining_regs
 	bl      .AlignmentException
@@ -783,11 +722,7 @@ Alignment_common:
 ProgramCheck_common:
 	EXCEPTION_PROLOG_COMMON
 	addi	r3,r1,STACK_FRAME_OVERHEAD
-#ifdef DO_SOFT_DISABLE
-	ld	r20,SOFTE(r1)
-#else
-	rldicl	r20,r23,49,63   	/* copy EE bit from saved MSR */
-#endif
+	DO_COPY_EE()
 	li	r6,0x700
 	bl      .save_remaining_regs
 	bl      .ProgramCheckException
@@ -798,11 +733,7 @@ FPUnavailable_common:
 	EXCEPTION_PROLOG_COMMON
 	bne	.load_up_fpu		/* if from user, just load it up */
 	addi	r3,r1,STACK_FRAME_OVERHEAD
-#ifdef DO_SOFT_DISABLE
-	ld	r20,SOFTE(r1)
-#else
-	rldicl	r20,r23,49,63   	/* copy EE bit from saved MSR */
-#endif
+	DO_COPY_EE()
 	li	r6,0x800
 	bl      .save_remaining_regs
 	bl      .KernelFPUnavailableException
@@ -818,11 +749,7 @@ SystemCall_common:
 	beq+	HardwareInterrupt_entry
 1:
 #endif
-#ifdef DO_SOFT_DISABLE
-	ld	r20,SOFTE(r1)
-#else
-	rldicl	r20,r23,49,63   	/* copy EE bit from saved MSR */
-#endif
+	DO_COPY_EE()
 	li	r6,0xC00
 	bl      .save_remaining_regs
 	bl      .DoSyscall
@@ -1866,18 +1793,6 @@ _STATIC(start_here_common)
 	li	r5,0
 	std	r0,PACAKSAVE(r13)
 
-	/* ptr to hardware interrupt stack for boot processor */
-	LOADADDR(r3, hardware_int_paca0)
-	li      r5,PAGE_SIZE
-	sldi    r5,r5,3
-	subi    r5,r5,STACK_FRAME_OVERHEAD
-
-	add     r3,r3,r5
-	std     r3,PACAHRDWINTSTACK(r13)
-
-	li      r3,0
-	stb     r3,PACAHRDWINTCOUNT(r13)
-
 	/* Restore the parms passed in from the bootloader. */
 	mr	r3,r31
 	mr	r4,r30
@@ -1999,10 +1914,6 @@ swapper_pg_dir:
 ioremap_dir:
 	.space	4096
 
-	.globl  hardware_int_paca0
-hardware_int_paca0:
-	.space	8*PAGE_SIZE
-
 /* 1 page segment table per cpu (max 48, cpu0 allocated at STAB0_PHYS_ADDR) */
 	.globl	stab_array
 stab_array:

arch/ppc64/kernel/irq.c

@@ -39,6 +39,7 @@
 #include <linux/irq.h>
 #include <linux/proc_fs.h>
 #include <linux/random.h>
+#include <linux/kallsyms.h>
 
 #include <asm/uaccess.h>
 #include <asm/bitops.h>
@@ -350,14 +351,11 @@ int show_interrupts(struct seq_file *p, void *v)
 	return 0;
 }
 
-extern char *ppc_find_proc_name(unsigned *p, char *buf, unsigned buflen);
-
-static inline void handle_irq_event(int irq, struct pt_regs *regs,
+static inline int handle_irq_event(int irq, struct pt_regs *regs,
 				   struct irqaction *action)
 {
 	int status = 0;
 	int retval = 0;
-	struct irqaction *first_action = action;
 
 	if (!(action->flags & SA_INTERRUPT))
 		local_irq_enable();
@@ -370,28 +368,88 @@ static inline void handle_irq_event(int irq, struct pt_regs *regs,
 	if (status & SA_SAMPLE_RANDOM)
 		add_interrupt_randomness(irq);
 	local_irq_disable();
-	if (retval != 1) {
-		static int count = 100;
-		char name_buf[256];
-		if (count) {
-			count--;
-			if (retval) {
-				printk("irq event %d: bogus retval mask %x\n",
-					irq, retval);
+	return retval;
+}
+
+static void __report_bad_irq(int irq, irq_desc_t *desc, irqreturn_t action_ret)
+{
+	struct irqaction *action;
+
+	if (action_ret != IRQ_HANDLED && action_ret != IRQ_NONE) {
+		printk(KERN_ERR "irq event %d: bogus return value %x\n",
+				irq, action_ret);
 	} else {
-				printk("irq %d: nobody cared!\n", irq);
+		printk(KERN_ERR "irq %d: nobody cared!\n", irq);
 	}
 	dump_stack();
-			printk("handlers:\n");
-			action = first_action;
+	printk(KERN_ERR "handlers:\n");
+	action = desc->action;
 	do {
-				printk("[<%p>]", action->handler);
-				printk(" (%s)\n",
-				       ppc_find_proc_name((unsigned *)action->handler, name_buf, 256));
+		printk(KERN_ERR "[<%p>]", action->handler);
+		print_symbol(" (%s)",
+			(unsigned long)action->handler);
+		printk("\n");
 		action = action->next;
 	} while (action);
+}
+
+static void report_bad_irq(int irq, irq_desc_t *desc, irqreturn_t action_ret)
+{
+	static int count = 100;
+
+	if (count) {
+		count--;
+		__report_bad_irq(irq, desc, action_ret);
+	}
+}
+
+static int noirqdebug;
+
+static int __init noirqdebug_setup(char *str)
+{
+	noirqdebug = 1;
+	printk("IRQ lockup detection disabled\n");
+	return 1;
+}
+
+__setup("noirqdebug", noirqdebug_setup);
+
+/*
+ * If 99,900 of the previous 100,000 interrupts have not been handled then
+ * assume that the IRQ is stuck in some manner.  Drop a diagnostic and try to
+ * turn the IRQ off.
+ *
+ * (The other 100-of-100,000 interrupts may have been a correctly-functioning
+ *  device sharing an IRQ with the failing one)
+ *
+ * Called under desc->lock
+ */
+static void note_interrupt(int irq, irq_desc_t *desc, irqreturn_t action_ret)
+{
+	if (action_ret != IRQ_HANDLED) {
+		desc->irqs_unhandled++;
+		if (action_ret != IRQ_NONE)
+			report_bad_irq(irq, desc, action_ret);
 	}
+
+	desc->irq_count++;
+	if (desc->irq_count < 100000)
+		return;
+
+	desc->irq_count = 0;
+	if (desc->irqs_unhandled > 99900) {
+		/*
+		 * The interrupt is stuck
+		 */
+		__report_bad_irq(irq, desc, action_ret);
+		/*
+		 * Now kill the IRQ
+		 */
+		printk(KERN_EMERG "Disabling IRQ #%d\n", irq);
+		desc->status |= IRQ_DISABLED;
+		desc->handler->disable(irq);
 	}
+	desc->irqs_unhandled = 0;
 }
 
 /*
@@ -462,10 +520,13 @@ void ppc_irq_dispatch_handler(struct pt_regs *regs, int irq)
 	 * SMP environment.
 	 */
 	for (;;) {
+		irqreturn_t action_ret;
+
 		spin_unlock(&desc->lock);
-		handle_irq_event(irq, regs, action);
+		action_ret = handle_irq_event(irq, regs, action);
 		spin_lock(&desc->lock);
-		
+		if (!noirqdebug)
+			note_interrupt(irq, desc, action_ret);
 		if (likely(!(desc->status & IRQ_PENDING)))
 			break;
 		desc->status &= ~IRQ_PENDING;

arch/ppc64/kernel/pSeries_pci.c

@@ -427,6 +427,7 @@ unsigned long __init find_and_init_phbs(void)
 
 void pcibios_name_device(struct pci_dev *dev)
 {
+#if 0
 	struct device_node *dn;
 
 	/*
@@ -446,6 +447,7 @@ void pcibios_name_device(struct pci_dev *dev)
 			}
 		}
 	}
+#endif
 }   
 
 void __init pcibios_fixup_device_resources(struct pci_dev *dev,

arch/ppc64/kernel/ppc_ksyms.c

@@ -49,8 +49,6 @@
 
 extern int sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
 extern int do_signal(sigset_t *, struct pt_regs *);
-extern int register_ioctl32_conversion(unsigned int cmd, int (*handler)(unsigned int, unsigned int, unsigned long, struct file *));
-extern int unregister_ioctl32_conversion(unsigned int cmd);
 
 int abs(int);
 
@@ -66,9 +64,6 @@ EXPORT_SYMBOL(disable_irq_nosync);
 EXPORT_SYMBOL(synchronize_irq);
 #endif /* CONFIG_SMP */
 
-EXPORT_SYMBOL(register_ioctl32_conversion);
-EXPORT_SYMBOL(unregister_ioctl32_conversion);
-
 EXPORT_SYMBOL(isa_io_base);
 EXPORT_SYMBOL(pci_io_base);
 

arch/ppc64/kernel/process.c

@@ -32,6 +32,7 @@
 #include <linux/init_task.h>
 #include <linux/prctl.h>
 #include <linux/ptrace.h>
+#include <linux/kallsyms.h>
 
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
@@ -130,12 +131,9 @@ struct task_struct *__switch_to(struct task_struct *prev,
 	return last;
 }
 
-char *ppc_find_proc_name(unsigned *p, char *buf, unsigned buflen);
-
 void show_regs(struct pt_regs * regs)
 {
 	int i;
-	char name_buf[256];
 
 	printk("NIP: %016lX XER: %016lX LR: %016lX\n",
 	       regs->nip, regs->xer, regs->link);
@@ -170,8 +168,7 @@ void show_regs(struct pt_regs * regs)
 	 * above info out without failing
 	 */
 	printk("NIP [%016lx] ", regs->nip);
-	printk("%s\n", ppc_find_proc_name((unsigned *)regs->nip,
-	       name_buf, 256));
+	print_symbol("%s\n", regs->nip);
 	show_stack(current, (unsigned long *)regs->gpr[1]);
 }
 
@@ -385,102 +382,6 @@ int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
 	return error;
 }
 
-void initialize_paca_hardware_interrupt_stack(void)
-{
-	int i;
-	unsigned long stack;
-	unsigned long end_of_stack =0;
-
-	for (i=1; i < NR_CPUS; i++) {
-		if (!cpu_possible(i))
-			continue;
-		/* Carve out storage for the hardware interrupt stack */
-		stack = __get_free_pages(GFP_ATOMIC, get_order(8*PAGE_SIZE));
-
-		if ( !stack ) {     
-			printk("ERROR, cannot find space for hardware stack.\n");
-			panic(" no hardware stack ");
-		}
-
-
-		/* Store the stack value in the PACA for the processor */
-		paca[i].xHrdIntStack = stack + (8*PAGE_SIZE) - STACK_FRAME_OVERHEAD;
-		paca[i].xHrdIntCount = 0;
-
-	}
-
-	/*
-	 * __get_free_pages() might give us a page > KERNBASE+256M which
-	 * is mapped with large ptes so we can't set up the guard page.
-	 */
-	if (cur_cpu_spec->cpu_features & CPU_FTR_16M_PAGE)
-		return;
-
-	for (i=0; i < NR_CPUS; i++) {
-		if (!cpu_possible(i))
-			continue;
-		/* set page at the top of stack to be protected - prevent overflow */
-		end_of_stack = paca[i].xHrdIntStack - (8*PAGE_SIZE - STACK_FRAME_OVERHEAD);
-		ppc_md.hpte_updateboltedpp(PP_RXRX,end_of_stack);
-	}
-}
-
-char *ppc_find_proc_name(unsigned *p, char *buf, unsigned buflen)
-{
-	unsigned long tb_flags;
-	unsigned short name_len;
-	unsigned long tb_start, code_start, code_ptr, code_offset;
-	unsigned int code_len;
-	unsigned long end;
-
-	strcpy(buf, "Unknown");
-	code_ptr = (unsigned long)p;
-	code_offset = 0;
-
-	/* handle functions in text and init sections */
-	if (((unsigned long)p >= (unsigned long)_stext) && 
-	    ((unsigned long)p < (unsigned long)_etext))
-		end = (unsigned long)_etext;
-	else if (((unsigned long)p >= (unsigned long)__init_begin) && 
-		 ((unsigned long)p < (unsigned long)__init_end))
-		end = (unsigned long)__init_end;
-	else
-		return buf;
-
-	while ((unsigned long)p < end) {
-		if (*p == 0) {
-			tb_start = (unsigned long)p;
-			++p;	/* Point to traceback flags */
-			tb_flags = *((unsigned long *)p);
-			p += 2;	/* Skip over traceback flags */
-			if (tb_flags & TB_NAME_PRESENT) {
-				if (tb_flags & TB_PARMINFO)
-					++p;	/* skip over parminfo data */
-				if (tb_flags & TB_HAS_TBOFF) {
-					code_len = *p;	/* get code length */
-					code_start = tb_start - code_len;
-					code_offset = code_ptr - code_start + 1;
-					if (code_offset > 0x100000)
-						break;
-					++p;	/* skip over code size */
-				}
-				name_len = *((unsigned short *)p);
-				if (name_len > (buflen-20))
-					name_len = buflen-20;
-				memcpy(buf, ((char *)p)+2, name_len);
-				buf[name_len] = 0;
-				if (code_offset)
-					sprintf(buf+name_len, "+0x%lx",
-						code_offset-1); 
-			}
-			break;
-		}
-		++p;
-	}
-
-	return buf;
-}
-
 /*
  * These bracket the sleeping functions..
  */
@@ -520,7 +421,6 @@ void show_stack(struct task_struct *p, unsigned long *_sp)
 	unsigned long ip;
 	unsigned long stack_page = (unsigned long)p->thread_info;
 	int count = 0;
-	char name_buf[256];
 	unsigned long sp = (unsigned long)_sp;
 
 	if (!p)
@@ -539,8 +439,7 @@ void show_stack(struct task_struct *p, unsigned long *_sp)
 		if (__get_user(ip, (unsigned long *)(sp + 16)))
 			break;
 		printk("[%016lx] ", ip);
-		printk("%s\n", ppc_find_proc_name((unsigned *)ip,
-		       name_buf, 256));
+		print_symbol("%s\n", ip);
 	} while (count++ < 32);
 }
 

arch/ppc64/kernel/rtas.c

@@ -24,6 +24,7 @@
 #include <asm/machdep.h>
 #include <asm/paca.h>
 #include <asm/page.h>
+#include <asm/param.h>
 #include <asm/system.h>
 #include <asm/abs_addr.h>
 #include <asm/udbg.h>
@@ -178,6 +179,26 @@ rtas_call(int token, int nargs, int nret,
 	return (ulong)((nret > 0) ? rtas_args->rets[0] : 0);
 }
 
+/* Given an RTAS status code of 990n compute the hinted delay of 10^n
+ * (last digit) milliseconds.  For now we bound at n=3 (1 sec).
+ */
+unsigned int
+rtas_extended_busy_delay_time(int status)
+{
+	int order = status - 9900;
+	unsigned int ms;
+
+	if (order < 0)
+		order = 0;	/* RTC depends on this for -2 clock busy */
+	else if (order > 3)
+		order = 3;	/* bound */
+
+	/* Use microseconds for reasonable accuracy */
+	for (ms = 1000; order > 0; order--)
+		ms = ms * 10;
+	return ms / (1000000/HZ); /* round down is fine */
+}
+
 #define FLASH_BLOCK_LIST_VERSION (1UL)
 static void
 rtas_flash_firmware(void)

arch/ppc64/kernel/rtc.c

@@ -35,6 +35,7 @@
 #include <linux/spinlock.h>
 #include <linux/bcd.h>
 
+#include <asm/hardirq.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -340,20 +341,63 @@ void iSeries_get_boot_time(struct rtc_time *tm)
 #endif
 
 #ifdef CONFIG_PPC_PSERIES
-void pSeries_get_rtc_time(struct rtc_time *rtc_tm)
+#define MAX_RTC_WAIT 5000	/* 5 sec */
+#define RTAS_CLOCK_BUSY (-2)
+void pSeries_get_boot_time(struct rtc_time *rtc_tm)
 {
 	unsigned long ret[8];
-        int error;
-	int count;
+	int error, wait_time;
+	unsigned long max_wait_tb;
 
-	/*
-	 * error -2 is clock busy, we keep retrying a few times to see
-	 * if it will come good  -- paulus
+	max_wait_tb = __get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
+	do {
+		error = rtas_call(rtas_token("get-time-of-day"), 0, 8, (void *)&ret);
+		if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
+			wait_time = rtas_extended_busy_delay_time(error);
+			/* This is boot time so we spin. */
+			udelay(wait_time*1000);
+			error = RTAS_CLOCK_BUSY;
+		}
+	} while (error == RTAS_CLOCK_BUSY && (__get_tb() < max_wait_tb));
+
+	if (error != 0) {
+		printk(KERN_WARNING "error: reading the clock failed (%d)\n",
+			error);
+		return;
+	}
+
+	rtc_tm->tm_sec = ret[5];
+	rtc_tm->tm_min = ret[4];
+	rtc_tm->tm_hour = ret[3];
+	rtc_tm->tm_mday = ret[2];
+	rtc_tm->tm_mon = ret[1] - 1;
+	rtc_tm->tm_year = ret[0] - 1900;
+}
+
+/* NOTE: get_rtc_time will get an error if executed in interrupt context
+ * and if a delay is needed to read the clock.  In this case we just
+ * silently return without updating rtc_tm.
  */
-	count = 0;
+void pSeries_get_rtc_time(struct rtc_time *rtc_tm)
+{
+        unsigned long ret[8];
+	int error, wait_time;
+	unsigned long max_wait_tb;
+
+	max_wait_tb = __get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
 	do {
 		error = rtas_call(rtas_token("get-time-of-day"), 0, 8, (void *)&ret);
-	} while (error == -2 && ++count < 1000);
+		if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
+			if (in_interrupt()) {
+				printk(KERN_WARNING "error: reading clock would delay interrupt\n");
+				return;	/* delay not allowed */
+			}
+			wait_time = rtas_extended_busy_delay_time(error);
+			set_current_state(TASK_INTERRUPTIBLE);
+			schedule_timeout(wait_time);
+			error = RTAS_CLOCK_BUSY;
+		}
+	} while (error == RTAS_CLOCK_BUSY && (__get_tb() < max_wait_tb));
 
         if (error != 0) {
                 printk(KERN_WARNING "error: reading the clock failed (%d)\n",
@@ -371,20 +415,24 @@ void pSeries_get_rtc_time(struct rtc_time *rtc_tm)
 
 int pSeries_set_rtc_time(struct rtc_time *tm)
 {
-        int error;
-	int count;
+	int error, wait_time;
+	unsigned long max_wait_tb;
 
-	/*
-	 * error -2 is clock busy, we keep retrying a few times to see
-	 * if it will come good  -- paulus
-	 */
-	count = 0;
+	max_wait_tb = __get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
 	do {
 	        error = rtas_call(rtas_token("set-time-of-day"), 7, 1, NULL,
 				  tm->tm_year + 1900, tm->tm_mon + 1, 
 				  tm->tm_mday, tm->tm_hour, tm->tm_min, 
 				  tm->tm_sec, 0);
-	} while (error == -2 && ++count < 1000);
+		if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
+			if (in_interrupt())
+				return 1;	/* probably decrementer */
+			wait_time = rtas_extended_busy_delay_time(error);
+			set_current_state(TASK_INTERRUPTIBLE);
+			schedule_timeout(wait_time);
+			error = RTAS_CLOCK_BUSY;
+		}
+	} while (error == RTAS_CLOCK_BUSY && (__get_tb() < max_wait_tb));
 
         if (error != 0)
                 printk(KERN_WARNING "error: setting the clock failed (%d)\n",

arch/ppc64/kernel/semaphore.c

@@ -75,9 +75,8 @@ void __down(struct semaphore *sem)
 	struct task_struct *tsk = current;
 	DECLARE_WAITQUEUE(wait, tsk);
 
-	tsk->state = TASK_UNINTERRUPTIBLE;
+	__set_task_state(tsk, TASK_UNINTERRUPTIBLE);
 	add_wait_queue_exclusive(&sem->wait, &wait);
-	smp_wmb();
 
 	/*
 	 * Try to get the semaphore.  If the count is > 0, then we've
@@ -87,10 +86,10 @@ void __down(struct semaphore *sem)
 	 */
 	while (__sem_update_count(sem, -1) <= 0) {
 		schedule();
-		tsk->state = TASK_UNINTERRUPTIBLE;
+		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
 	}
 	remove_wait_queue(&sem->wait, &wait);
-	tsk->state = TASK_RUNNING;
+	__set_task_state(tsk, TASK_RUNNING);
 
 	/*
 	 * If there are any more sleepers, wake one of them up so
@@ -106,9 +105,8 @@ int __down_interruptible(struct semaphore * sem)
 	struct task_struct *tsk = current;
 	DECLARE_WAITQUEUE(wait, tsk);
 
-	tsk->state = TASK_INTERRUPTIBLE;
+	__set_task_state(tsk, TASK_INTERRUPTIBLE);
 	add_wait_queue_exclusive(&sem->wait, &wait);
-	smp_wmb();
 
 	while (__sem_update_count(sem, -1) <= 0) {
 		if (signal_pending(current)) {
@@ -122,10 +120,11 @@ int __down_interruptible(struct semaphore * sem)
 			break;
 		}
 		schedule();
-		tsk->state = TASK_INTERRUPTIBLE;
+		set_task_state(tsk, TASK_INTERRUPTIBLE);
 	}
-	tsk->state = TASK_RUNNING;
 	remove_wait_queue(&sem->wait, &wait);
+	__set_task_state(tsk, TASK_RUNNING);
+
 	wake_up(&sem->wait);
 	return retval;
 }

arch/ppc64/kernel/sys_ppc32.c

@@ -1243,16 +1243,19 @@ asmlinkage long sys32_settimeofday(struct compat_timeval *tv, struct timezone *t
 }
 
 
-struct msgbuf32 { s32 mtype; char mtext[1]; };
+struct msgbuf32 {
+	compat_long_t mtype; 
+	char mtext[1];
+};
 
 struct semid_ds32 {
 	struct ipc_perm sem_perm;
 	compat_time_t sem_otime;
 	compat_time_t sem_ctime;
-	u32 sem_base;
-	u32 sem_pending;
-	u32 sem_pending_last;
-	u32 undo;
+	compat_uptr_t sem_base;
+	compat_uptr_t sem_pending;
+	compat_uptr_t sem_pending_last;
+	compat_uptr_t undo;
 	unsigned short sem_nsems;
 };
 
@@ -1262,21 +1265,20 @@ struct semid64_ds32 {
 	compat_time_t sem_otime;
 	unsigned int __unused2;
 	compat_time_t sem_ctime;
-	u32 sem_nsems;
-	u32 __unused3;
-	u32 __unused4;
+	compat_ulong_t sem_nsems;
+	compat_ulong_t __unused3;
+	compat_ulong_t __unused4;
 };
 
-struct msqid_ds32
-{
+struct msqid_ds32 {
 	struct ipc_perm msg_perm;
-	u32 msg_first;
-	u32 msg_last;
+	compat_uptr_t msg_first;
+	compat_uptr_t msg_last;
 	compat_time_t msg_stime;
 	compat_time_t msg_rtime;
 	compat_time_t msg_ctime;
-	u32 msg_lcbytes;
-	u32 msg_lqbytes;
+	compat_ulong_t msg_lcbytes;
+	compat_ulong_t msg_lqbytes;
 	unsigned short msg_cbytes;
 	unsigned short msg_qnum;
 	unsigned short msg_qbytes;
@@ -1292,13 +1294,13 @@ struct msqid64_ds32 {
 	compat_time_t msg_rtime;
 	unsigned int __unused3;
 	compat_time_t msg_ctime;
-	unsigned int msg_cbytes;
-	unsigned int msg_qnum;
-	unsigned int msg_qbytes;
+	compat_ulong_t msg_cbytes;
+	compat_ulong_t msg_qnum;
+	compat_ulong_t msg_qbytes;
 	compat_pid_t msg_lspid;
 	compat_pid_t msg_lrpid;
-	unsigned int __unused4;
-	unsigned int __unused5;
+	compat_ulong_t __unused4;
+	compat_ulong_t __unused5;
 };
 
 struct shmid_ds32 {
@@ -1311,8 +1313,8 @@ struct shmid_ds32 {
 	compat_ipc_pid_t shm_lpid;
 	unsigned short shm_nattch;
 	unsigned short __unused;
-	unsigned int __unused2;
-	unsigned int __unused3;
+	compat_uptr_t __unused2;
+	compat_uptr_t __unused3;
 };
 
 struct shmid64_ds32 {
@@ -1327,9 +1329,9 @@ struct shmid64_ds32 {
 	compat_size_t shm_segsz;
 	compat_pid_t shm_cpid;
 	compat_pid_t shm_lpid;
-	unsigned int shm_nattch;
-	unsigned int __unused5;
-	unsigned int __unused6;
+	compat_ulong_t shm_nattch;
+	compat_ulong_t __unused5;
+	compat_ulong_t __unused6;
 };
 
 /*
@@ -1350,7 +1352,7 @@ static long do_sys32_semctl(int first, int second, int third, void *uptr)
 	err = -EFAULT;
 	if (get_user(pad, (u32 *)uptr))
 		return err;
-	if (third == SETVAL)
+	if ((third & ~IPC_64) == SETVAL)
 		fourth.val = (int)pad;
 	else
 		fourth.__pad = (void *)A(pad);

arch/ppc64/kernel/syscalls.c

 /*
- * linux/arch/ppc/kernel/sys_ppc.c
+ * linux/arch/ppc64/kernel/sys_ppc.c
  *
  *  PowerPC version 
  *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
@@ -40,7 +40,6 @@
 #include <asm/uaccess.h>
 #include <asm/ipc.h>
 #include <asm/semaphore.h>
-#include <asm/ppcdebug.h>
 #include <asm/time.h>
 
 extern unsigned long wall_jiffies;
@@ -79,6 +78,7 @@ sys_ipc (uint call, int first, int second, long third, void *ptr, long fifth)
 	case SEMCTL: {
 		union semun fourth;
 
+		ret = -EINVAL;
 		if (!ptr)
 			break;
 		if ((ret = get_user(fourth.__pad, (void **)ptr)))
@@ -94,6 +94,7 @@ sys_ipc (uint call, int first, int second, long third, void *ptr, long fifth)
 		case 0: {
 			struct ipc_kludge tmp;
 
+			ret = -EINVAL;
 			if (!ptr)
 				break;
 			if ((ret = copy_from_user(&tmp,
@@ -127,6 +128,7 @@ sys_ipc (uint call, int first, int second, long third, void *ptr, long fifth)
 			break;
 		}
 		case 1:	/* iBCS2 emulator entry point */
+			ret = -EINVAL;
 			if (!segment_eq(get_fs(), get_ds()))
 				break;
 			ret = sys_shmat (first, (char *) ptr, second,

arch/ppc64/kernel/vmlinux.lds.S

@@ -137,4 +137,9 @@ SECTIONS
   . = ALIGN(4096);
   _end = . ;
   PROVIDE (end = .);
+
+  /* Sections to be discarded. */
+  /DISCARD/ : {
+    *(.exitcall.exit)
+  }
 }

arch/ppc64/kernel/xics.c

@@ -267,6 +267,15 @@ void xics_disable_irq(u_int virq)
 		       irq, call_status);
 		return;
 	}
+
+	/* Have to set XIVE to 0xff to be able to remove a slot */
+	call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, default_server,
+				0xff);
+	if (call_status != 0) {
+	printk("xics_disable_irq: irq=%x: ibm_set_xive(0xff) returned %lx\n",
+	       irq, call_status);
+		return;
+	}
 }
 
 void xics_end_irq(u_int	irq)

arch/ppc64/mm/fault.c

@@ -46,8 +46,10 @@ int debugger_kernel_faults = 1;
 void bad_page_fault(struct pt_regs *, unsigned long, int);
 
 /*
- * For 600- and 800-family processors, the error_code parameter is DSISR
- * for a data fault, SRR1 for an instruction fault.
+ * The error_code parameter is
+ *  - DSISR for a non-SLB data access fault,
+ *  - SRR1 & 0x08000000 for a non-SLB instruction access fault
+ *  - 0 any SLB fault.
  */
 void do_page_fault(struct pt_regs *regs, unsigned long address,
 		   unsigned long error_code)
@@ -58,17 +60,6 @@ void do_page_fault(struct pt_regs *regs, unsigned long address,
 	unsigned long code = SEGV_MAPERR;
 	unsigned long is_write = error_code & 0x02000000;
 
-	/*
-	 * Fortunately the bit assignments in SRR1 for an instruction
-	 * fault and DSISR for a data fault are mostly the same for the
-	 * bits we are interested in.  But there are some bits which
-	 * indicate errors in DSISR but can validly be set in SRR1.
-	 */
-	if (regs->trap == 0x400)
-		error_code &= 0x48200000;
-	else if (regs->trap != 0x300) /* ensure error_code is 0 on SLB miss */
-		error_code = 0;
-
 #ifdef CONFIG_DEBUG_KERNEL
 	if (debugger_fault_handler && (regs->trap == 0x300 ||
 				       regs->trap == 0x380)) {

arch/ppc64/mm/init.c

@@ -540,8 +540,6 @@ static int __init setup_kcore(void)
 }
 module_init(setup_kcore);
 
-void initialize_paca_hardware_interrupt_stack(void);
-
 void __init mem_init(void)
 {
 #ifndef CONFIG_DISCONTIGMEM
@@ -608,9 +606,6 @@ void __init mem_init(void)
 #endif
 	mem_init_done = 1;
 
-	/* set the last page of each hardware interrupt stack to be protected */
-	initialize_paca_hardware_interrupt_stack();
-
 #ifdef CONFIG_PPC_ISERIES
 	create_virtual_bus_tce_table();
 #endif

arch/ppc64/mm/numa.c

@@ -24,18 +24,21 @@
 int numa_cpu_lookup_table[NR_CPUS] = { [ 0 ... (NR_CPUS - 1)] = -1};
 int numa_memory_lookup_table[MAX_MEMORY >> MEMORY_INCREMENT_SHIFT] =
 	{ [ 0 ... ((MAX_MEMORY >> MEMORY_INCREMENT_SHIFT) - 1)] = -1};
-unsigned long numa_cpumask_lookup_table[MAX_NUMNODES];
+cpumask_t numa_cpumask_lookup_table[MAX_NUMNODES];
 int nr_cpus_in_node[MAX_NUMNODES] = { [0 ... (MAX_NUMNODES -1)] = 0};
 
 struct pglist_data node_data[MAX_NUMNODES];
 bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
+EXPORT_SYMBOL(node_data);
+EXPORT_SYMBOL(numa_memory_lookup_table);
+
 static inline void map_cpu_to_node(int cpu, int node)
 {
 	dbg("cpu %d maps to domain %d\n", cpu, node);
 	numa_cpu_lookup_table[cpu] = node;
-	if (!(numa_cpumask_lookup_table[node] & 1UL << cpu)) {
-		numa_cpumask_lookup_table[node] |= 1UL << cpu;
+	if (!(cpu_isset(cpu, numa_cpumask_lookup_table[node]))) {
+		cpu_set(cpu, numa_cpumask_lookup_table[node]);
 		nr_cpus_in_node[node]++;
 	}
 }

arch/ppc64/xmon/xmon.c

@@ -15,6 +15,8 @@
 #include <linux/mm.h>
 #include <linux/reboot.h>
 #include <linux/delay.h>
+#include <linux/kallsyms.h>
+
 #include <asm/ptrace.h>
 #include <asm/string.h>
 #include <asm/prom.h>
@@ -27,6 +29,7 @@
 #include <asm/paca.h>
 #include <asm/ppcdebug.h>
 #include <asm/cputable.h>
+
 #include "nonstdio.h"
 #include "privinst.h"
 
@@ -59,7 +62,6 @@ struct bpt {
 	unsigned instr;
 	unsigned long count;
 	unsigned char enabled;
-	char funcname[64];	/* function name for humans */
 };
 
 #define NBPTS	16
@@ -79,14 +81,9 @@ static void memex(void);
 static int bsesc(void);
 static void dump(void);
 static void prdump(unsigned long, long);
-#ifdef __MWERKS__
-static void prndump(unsigned, int);
-static int nvreadb(unsigned);
-#endif
 static int ppc_inst_dump(unsigned long, long);
 void print_address(unsigned long);
 static int getsp(void);
-static void dump_hash_table(void);
 static void backtrace(struct pt_regs *);
 static void excprint(struct pt_regs *);
 static void prregs(struct pt_regs *);
@@ -106,7 +103,6 @@ static void take_input(char *);
 static unsigned long read_spr(int);
 static void write_spr(int, unsigned long);
 static void super_regs(void);
-static void print_sysmap(void);
 static void remove_bpts(void);
 static void insert_bpts(void);
 static struct bpt *at_breakpoint(unsigned long pc);
@@ -158,7 +154,6 @@ Commands:\n\
   dd	dump double values\n\
   e	print exception information\n\
   f	flush cache\n\
-  h	dump hash table\n\
   m	examine/change memory\n\
   mm	move a block of memory\n\
   ms	set a block of memory\n\
@@ -183,6 +178,13 @@ static int xmon_trace[NR_CPUS];
 
 static struct pt_regs *xmon_regs[NR_CPUS];
 
+void __xmon_print_symbol(const char *fmt, unsigned long address);
+#define xmon_print_symbol(fmt, addr)		\
+do {						\
+	__check_printsym_format(fmt, "");	\
+	__xmon_print_symbol(fmt, addr);		\
+} while(0)
+
 /*
  * Stuff for reading and writing memory safely
  */
@@ -211,42 +213,6 @@ extern inline void sync(void)
  no functions have been called from the current function.
  */
 
-/*
- A traceback table typically follows each function.
- The find_tb_table() func will fill in this struct.  Note that the struct
- is not an exact match with the encoded table defined by the ABI.  It is
- defined here more for programming convenience.
- */
-struct tbtable {
-	unsigned long	flags;		/* flags: */
-#define TBTAB_FLAGSGLOBALLINK	(1L<<47)
-#define TBTAB_FLAGSISEPROL	(1L<<46)
-#define TBTAB_FLAGSHASTBOFF	(1L<<45)
-#define TBTAB_FLAGSINTPROC	(1L<<44)
-#define TBTAB_FLAGSHASCTL	(1L<<43)
-#define TBTAB_FLAGSTOCLESS	(1L<<42)
-#define TBTAB_FLAGSFPPRESENT	(1L<<41)
-#define TBTAB_FLAGSNAMEPRESENT	(1L<<38)
-#define TBTAB_FLAGSUSESALLOCA	(1L<<37)
-#define TBTAB_FLAGSSAVESCR	(1L<<33)
-#define TBTAB_FLAGSSAVESLR	(1L<<32)
-#define TBTAB_FLAGSSTORESBC	(1L<<31)
-#define TBTAB_FLAGSFIXUP	(1L<<30)
-#define TBTAB_FLAGSPARMSONSTK	(1L<<0)
-	unsigned char	fp_saved;	/* num fp regs saved f(32-n)..f31 */
-	unsigned char	gpr_saved;	/* num gpr's saved */
-	unsigned char	fixedparms;	/* num fixed point parms */
-	unsigned char	floatparms;	/* num float parms */
-	unsigned char	parminfo[32];	/* types of args.  null terminated */
-#define TBTAB_PARMFIXED 1
-#define TBTAB_PARMSFLOAT 2
-#define TBTAB_PARMDFLOAT 3
-	unsigned int	tb_offset;	/* offset from start of func */
-	unsigned long	funcstart;	/* addr of start of function */
-	char		name[64];	/* name of function (null terminated)*/
-};
-static int find_tb_table(unsigned long codeaddr, struct tbtable *tab);
-
 #define SURVEILLANCE_TOKEN	9000
 
 static inline void disable_surveillance(void)
@@ -304,8 +270,7 @@ xmon(struct pt_regs *excp)
 			std	29,232(%0)\n\
 			std	30,240(%0)\n\
 			std	31,248(%0)" : : "b" (&regs));
-		/* Fetch the link reg for this stack frame.
-		 NOTE: the prev printf fills in the lr. */
+
 		regs.nip = regs.link = ((unsigned long *)(regs.gpr[1]))[2];
 		regs.msr = get_msr();
 		regs.ctr = get_ctr();
@@ -380,7 +345,9 @@ xmon_bpt(struct pt_regs *regs)
 		xmon_trace[smp_processor_id()] = BRSTEP;
 		regs->msr |= MSR_SE;
 	} else {
-		printf("Stopped at breakpoint %x (%lx %s)\n", (bp - bpts)+1, bp->address, bp->funcname);
+		printf("Stopped at breakpoint %x (%lx ", (bp - bpts) + 1,
+			bp->address);
+		xmon_print_symbol("%s)\n", bp->address);
 		xmon(regs);
 	}
 	return 1;
@@ -578,9 +545,6 @@ cmds(struct pt_regs *excp)
 			else
 				excprint(excp);
 			break;
-		case 'M':
-			print_sysmap();
-			break;
 		case 'S':
 			super_regs();
 			break;
@@ -590,9 +554,6 @@ cmds(struct pt_regs *excp)
 		case 'f':
 			cacheflush();
 			break;
-		case 'h':
-			dump_hash_table();
-			break;
 		case 's':
 		case 'x':
 		case EOF:
@@ -773,7 +734,6 @@ bpt_cmds(void)
 	unsigned long a;
 	int mode, i;
 	struct bpt *bp;
-	struct tbtable tab;
 
 	cmd = inchar();
 	switch (cmd) {
@@ -829,7 +789,9 @@ bpt_cmds(void)
 			if (bp == 0) {
 				printf("No breakpoint at %x\n", a);
 			} else {
-				printf("Cleared breakpoint %x (%lx %s)\n", (bp - bpts)+1, bp->address, bp->funcname);
+				printf("Cleared breakpoint %x (%lx ", 
+					(bp - bpts) + 1, bp->address);
+				xmon_print_symbol("%s)\n", bp->address);
 				bp->enabled = 0;
 			}
 		}
@@ -863,8 +825,11 @@ bpt_cmds(void)
 				printf("   inst   %.16lx %8x\n", iabr.address & ~3,
 				       iabr.count);
 			for (bp = bpts, bpnum = 1; bp < &bpts[NBPTS]; ++bp, ++bpnum)
-				if (bp->enabled)
-					printf("%2x trap   %.16lx %8x  %s\n", bpnum, bp->address, bp->count, bp->funcname);
+				if (bp->enabled) {
+					printf("%2x trap   %.16lx %8x  ",
+						bpnum, bp->address, bp->count);
+					xmon_print_symbol("%s\n", bp->address);
+				}
 			break;
 		}
 		bp = at_breakpoint(a);
@@ -881,14 +846,9 @@ bpt_cmds(void)
 		bp->address = a;
 		bp->count = 0;
 		scanhex(&bp->count);
-		/* Find the function name just once. */
-		bp->funcname[0] = '\0';
-		if (find_tb_table(bp->address, &tab) && tab.name[0]) {
-			/* Got a nice name for it. */
-			int delta = bp->address - tab.funcstart;
-			sprintf(bp->funcname, "%s+0x%x", tab.name, delta);
-		}
-		printf("Set breakpoint %2x trap   %.16lx %8x  %s\n", (bp-bpts)+1, bp->address, bp->count, bp->funcname);
+		printf("Set breakpoint %2x trap   %.16lx %8x  ", (bp-bpts) + 1, 
+			bp->address, bp->count);
+		xmon_print_symbol("%s\n", bp->address);
 		break;
 	}
 }
@@ -925,7 +885,6 @@ backtrace(struct pt_regs *excp)
 	unsigned long lr;
 	unsigned long stack[3];
 	struct pt_regs regs;
-	struct tbtable tab;
 	int framecount;
 	char *funcname;
 	/* declare these as raw ptrs so we don't get func descriptors */
@@ -971,17 +930,11 @@ backtrace(struct pt_regs *excp)
 				break;
 			printf("exception: %lx %s regs %lx\n", regs.trap, getvecname(regs.trap), sp+112);
 			printf("                  %.16lx", regs.nip);
-			if ((regs.nip & 0xffffffff00000000UL) &&
-			    find_tb_table(regs.nip, &tab)) {
-				int delta = regs.nip-tab.funcstart;
-				if (delta < 0)
-					printf("  <unknown code>");
-				else
-					printf("  %s+0x%x", tab.name, delta);
-			}
+			if (regs.nip & 0xffffffff00000000UL)
+				xmon_print_symbol("  %s", regs.nip);
 			printf("\n");
                         if (regs.gpr[1] < sp) {
-                            printf("<Stack drops into 32-bit userspace %.16lx>\n", regs.gpr[1]);
+                            printf("<Stack drops into userspace %.16lx>\n", regs.gpr[1]);
                             break;
 			}
 
@@ -989,13 +942,8 @@ backtrace(struct pt_regs *excp)
 			if (mread(sp, stack, sizeof(stack)) != sizeof(stack))
 				break;
 		} else {
-			if (stack[2] && find_tb_table(stack[2], &tab)) {
-				int delta = stack[2]-tab.funcstart;
-				if (delta < 0)
-					printf("  <unknown code>");
-				else
-					printf("  %s+0x%x", tab.name, delta);
-			}
+			if (stack[2])
+				xmon_print_symbol("  %s", stack[2]);
 			printf("\n");
 		}
 		if (stack[0] && stack[0] <= sp) {
@@ -1024,8 +972,6 @@ spinlock_t exception_print_lock = SPIN_LOCK_UNLOCKED;
 void
 excprint(struct pt_regs *fp)
 {
-	struct task_struct *c;
-	struct tbtable tab;
 	unsigned long flags;
 
 	spin_lock_irqsave(&exception_print_lock, flags);
@@ -1036,19 +982,11 @@ excprint(struct pt_regs *fp)
 
 	printf("Vector: %lx %s at [%lx]\n", fp->trap, getvecname(fp->trap), fp);
 	printf("    pc: %lx", fp->nip);
-	if (find_tb_table(fp->nip, &tab) && tab.name[0]) {
-		/* Got a nice name for it */
-		int delta = fp->nip - tab.funcstart;
-		printf(" (%s+0x%x)", tab.name, delta);
-	}
-	printf("\n");
+	xmon_print_symbol(" (%s)\n", fp->nip);
+
 	printf("    lr: %lx", fp->link);
-	if (find_tb_table(fp->link, &tab) && tab.name[0]) {
-		/* Got a nice name for it */
-		int delta = fp->link - tab.funcstart;
-		printf(" (%s+0x%x)", tab.name, delta);
-	}
-	printf("\n");
+	xmon_print_symbol(" (%s)\n", fp->link);
+
 	printf("    sp: %lx\n", fp->gpr[1]);
 	printf("   msr: %lx\n", fp->msr);
 
@@ -1057,13 +995,11 @@ excprint(struct pt_regs *fp)
 		printf(" dsisr: %lx\n", fp->dsisr);
 	}
 
-	/* XXX: need to copy current or we die.  Why? */
-	c = current;
-	printf("  current = 0x%lx\n", c);
+	printf("  current = 0x%lx\n", current);
 	printf("  paca    = 0x%lx\n", get_paca());
-	if (c) {
-		printf("  current = %lx, pid = %ld, comm = %s\n",
-		       c, c->pid, c->comm);
+	if (current) {
+		printf("    pid   = %ld, comm = %s\n",
+		       current->pid, current->comm);
 	}
 
 	spin_unlock_irqrestore(&exception_print_lock, flags);
@@ -1152,14 +1088,6 @@ static unsigned long regno;
 extern char exc_prolog;
 extern char dec_exc;
 
-void
-print_sysmap(void)
-{
-	extern char *sysmap;
-	if ( sysmap )
-		printf("System.map: \n%s", sysmap);
-}
-
 void
 super_regs()
 {
@@ -1228,152 +1156,6 @@ super_regs()
 	scannl();
 }
 
-#ifndef CONFIG_PPC64BRIDGE
-static void
-dump_hash_table_seg(unsigned seg, unsigned start, unsigned end)
-{
-	extern void *Hash;
-	extern unsigned long Hash_size;
-	unsigned *htab = Hash;
-	unsigned hsize = Hash_size;
-	unsigned v, hmask, va, last_va;
-	int found, last_found, i;
-	unsigned *hg, w1, last_w2, last_va0;
-
-	last_found = 0;
-	hmask = hsize / 64 - 1;
-	va = start;
-	start = (start >> 12) & 0xffff;
-	end = (end >> 12) & 0xffff;
-	for (v = start; v < end; ++v) {
-		found = 0;
-		hg = htab + (((v ^ seg) & hmask) * 16);
-		w1 = 0x80000000 | (seg << 7) | (v >> 10);
-		for (i = 0; i < 8; ++i, hg += 2) {
-			if (*hg == w1) {
-				found = 1;
-				break;
-			}
-		}
-		if (!found) {
-			w1 ^= 0x40;
-			hg = htab + ((~(v ^ seg) & hmask) * 16);
-			for (i = 0; i < 8; ++i, hg += 2) {
-				if (*hg == w1) {
-					found = 1;
-					break;
-				}
-			}
-		}
-		if (!(last_found && found && (hg[1] & ~0x180) == last_w2 + 4096)) {
-			if (last_found) {
-				if (last_va != last_va0)
-					printf(" ... %x", last_va);
-				printf("\n");
-			}
-			if (found) {
-				printf("%x to %x", va, hg[1]);
-				last_va0 = va;
-			}
-			last_found = found;
-		}
-		if (found) {
-			last_w2 = hg[1] & ~0x180;
-			last_va = va;
-		}
-		va += 4096;
-	}
-	if (last_found)
-		printf(" ... %x\n", last_va);
-}
-
-#else /* CONFIG_PPC64BRIDGE */
-static void
-dump_hash_table_seg(unsigned seg, unsigned start, unsigned end)
-{
-	extern void *Hash;
-	extern unsigned long Hash_size;
-	unsigned *htab = Hash;
-	unsigned hsize = Hash_size;
-	unsigned v, hmask, va, last_va;
-	int found, last_found, i;
-	unsigned *hg, w1, last_w2, last_va0;
-
-	last_found = 0;
-	hmask = hsize / 128 - 1;
-	va = start;
-	start = (start >> 12) & 0xffff;
-	end = (end >> 12) & 0xffff;
-	for (v = start; v < end; ++v) {
-		found = 0;
-		hg = htab + (((v ^ seg) & hmask) * 32);
-		w1 = 1 | (seg << 12) | ((v & 0xf800) >> 4);
-		for (i = 0; i < 8; ++i, hg += 4) {
-			if (hg[1] == w1) {
-				found = 1;
-				break;
-			}
-		}
-		if (!found) {
-			w1 ^= 2;
-			hg = htab + ((~(v ^ seg) & hmask) * 32);
-			for (i = 0; i < 8; ++i, hg += 4) {
-				if (hg[1] == w1) {
-					found = 1;
-					break;
-				}
-			}
-		}
-		if (!(last_found && found && (hg[3] & ~0x180) == last_w2 + 4096)) {
-			if (last_found) {
-				if (last_va != last_va0)
-					printf(" ... %x", last_va);
-				printf("\n");
-			}
-			if (found) {
-				printf("%x to %x", va, hg[3]);
-				last_va0 = va;
-			}
-			last_found = found;
-		}
-		if (found) {
-			last_w2 = hg[3] & ~0x180;
-			last_va = va;
-		}
-		va += 4096;
-	}
-	if (last_found)
-		printf(" ... %x\n", last_va);
-}
-#endif /* CONFIG_PPC64BRIDGE */
-
-static unsigned long hash_ctx;
-static unsigned long hash_start;
-static unsigned long hash_end;
-
-static void
-dump_hash_table()
-{
-	int seg;
-	unsigned seg_start, seg_end;
-
-	hash_ctx = 0;
-	hash_start = 0;
-	hash_end = 0xfffff000;
-	scanhex(&hash_ctx);
-	scanhex(&hash_start);
-	scanhex(&hash_end);
-	printf("Mappings for context %x\n", hash_ctx);
-	seg_start = hash_start;
-	for (seg = hash_start >> 28; seg <= hash_end >> 28; ++seg) {
-		seg_end = (seg << 28) | 0x0ffff000;
-		if (seg_end > hash_end)
-			seg_end = hash_end;
-		dump_hash_table_seg((hash_ctx << 4) + seg, seg_start, seg_end);
-		seg_start = seg_end + 0x1000;
-	}
-}
-
 int
 mread(unsigned long adrs, void *buf, int size)
 {
@@ -2073,111 +1855,52 @@ char *str;
 	lineptr = str;
 }
 
-
-/* Starting at codeaddr scan forward for a tbtable and fill in the
- given table.  Return non-zero if successful at doing something.
- */
-static int
-find_tb_table(unsigned long codeaddr, struct tbtable *tab)
+/* xmon version of __print_symbol */
+void __xmon_print_symbol(const char *fmt, unsigned long address)
 {
-	unsigned long codeaddr_max;
-	unsigned long tbtab_start;
-	int nr;
-	int instr;
-	int num_parms;
-
-	/* don't look for traceback table in userspace */
-	if (codeaddr < PAGE_OFFSET)
-		return 0;
+	char *modname;
+	const char *name;
+	unsigned long offset, size;
+	char namebuf[128];
 
-	if (tab == NULL)
-		return 0;
-	memset(tab, 0, sizeof(tab));
-
-	/* Scan instructions starting at codeaddr for 128k max */
-	for (codeaddr_max = codeaddr + 128*1024*4;
-	     codeaddr < codeaddr_max;
-	     codeaddr += 4) {
-		nr = mread(codeaddr, &instr, 4);
-		if (nr != 4)
-			return 0;	/* Bad read.  Give up promptly. */
-		if (instr == 0) {
-			/* table should follow. */
-			int version;
-			unsigned long flags;
-			tbtab_start = codeaddr;	/* save it to compute func start addr */
-			codeaddr += 4;
-			nr = mread(codeaddr, &flags, 8);
-			if (nr != 8)
-				return 0;	/* Bad read or no tb table. */
-			tab->flags = flags;
-			version = (flags >> 56) & 0xff;
-			if (version != 0)
-				continue;	/* No tb table here. */
-			/* Now, like the version, some of the flags are values
-			 that are more conveniently extracted... */
-			tab->fp_saved = (flags >> 24) & 0x3f;
-			tab->gpr_saved = (flags >> 16) & 0x3f;
-			tab->fixedparms = (flags >> 8) & 0xff;
-			tab->floatparms = (flags >> 1) & 0x7f;
-			codeaddr += 8;
-			num_parms = tab->fixedparms + tab->floatparms;
-			if (num_parms) {
-				unsigned int parminfo;
-				int parm;
-				if (num_parms > 32)
-					return 1;	/* incomplete */
-				nr = mread(codeaddr, &parminfo, 4);
-				if (nr != 4)
-					return 1;	/* incomplete */
-				/* decode parminfo...32 bits.
-				 A zero means fixed.  A one means float and the
-				 following bit determines single (0) or double (1).
-				 */
-				for (parm = 0; parm < num_parms; parm++) {
-					if (parminfo & 0x80000000) {
-						parminfo <<= 1;
-						if (parminfo & 0x80000000)
-							tab->parminfo[parm] = TBTAB_PARMDFLOAT;
-						else
-							tab->parminfo[parm] = TBTAB_PARMSFLOAT;
+	if (setjmp(bus_error_jmp) == 0) {
+		debugger_fault_handler = handle_fault;
+		sync();
+		name = kallsyms_lookup(address, &size, &offset, &modname,
+				       namebuf);
+		sync();
+		/* wait a little while to see if we get a machine check */
+		__delay(200);
 	} else {
-						tab->parminfo[parm] = TBTAB_PARMFIXED;
-					}
-					parminfo <<= 1;
-				}
-				codeaddr += 4;
-			}
-			if (flags & TBTAB_FLAGSHASTBOFF) {
-				nr = mread(codeaddr, &tab->tb_offset, 4);
-				if (nr != 4)
-					return 1;	/* incomplete */
-				if (tab->tb_offset > 0) {
-					tab->funcstart = tbtab_start - tab->tb_offset;
-				}
-				codeaddr += 4;
-			}
-			/* hand_mask appears to be always be omitted. */
-			if (flags & TBTAB_FLAGSHASCTL) {
-				/* Assume this will never happen for C or asm */
-				return 1;	/* incomplete */
-			}
-			if (flags & TBTAB_FLAGSNAMEPRESENT) {
-				short namlen;
-				nr = mread(codeaddr, &namlen, 2);
-				if (nr != 2)
-					return 1;	/* incomplete */
-				if (namlen >= sizeof(tab->name))
-					namlen = sizeof(tab->name)-1;
-				codeaddr += 2;
-				nr = mread(codeaddr, tab->name, namlen);
-				tab->name[namlen] = '\0';
-				codeaddr += namlen;
+		name = "symbol lookup failed";
 	}
-			return 1;
+
+	debugger_fault_handler = 0;
+
+	if (!name) {
+		char addrstr[sizeof("0x%lx") + (BITS_PER_LONG*3/10)];
+
+		sprintf(addrstr, "0x%lx", address);
+		printf(fmt, addrstr);
+		return;
 	}
+
+	if (modname) {
+		/* This is pretty small. */
+		char buffer[sizeof("%s+%#lx/%#lx [%s]")
+			   + strlen(name) + 2*(BITS_PER_LONG*3/10)
+			   + strlen(modname)];
+
+		sprintf(buffer, "%s+%#lx/%#lx [%s]",
+			name, offset, size, modname);
+		printf(fmt, buffer);
+	} else {
+		char buffer[sizeof("%s+%#lx/%#lx")
+			   + strlen(name) + 2*(BITS_PER_LONG*3/10)];
+
+		sprintf(buffer, "%s+%#lx/%#lx", name, offset, size);
+		printf(fmt, buffer);
 	}
-	return 0;	/* hit max...sorry. */
 }
 
 void

include/asm-ppc64/mmzone.h

@@ -20,7 +20,7 @@ extern struct pglist_data node_data[];
 
 extern int numa_cpu_lookup_table[];
 extern int numa_memory_lookup_table[];
-extern unsigned long numa_cpumask_lookup_table[];
+extern cpumask_t numa_cpumask_lookup_table[];
 extern int nr_cpus_in_node[];
 
 #define MAX_MEMORY (1UL << 41)

include/asm-ppc64/paca.h

@@ -63,7 +63,7 @@ struct paca_struct {
 	u16 xPacaIndex;			/* Logical processor number		0x18 */
 	u16 active;			/* Is this cpu active?			0x1a */
 	u32 default_decr;		/* Default decrementer value		0x1c */	
-	u64 xHrdIntStack;		/* Stack for hardware interrupts	0x20 */
+	u64 unused1;
 	u64 xKsave;			/* Saved Kernel stack addr or zero	0x28 */
 	u64 pvr;			/* Processor version register		0x30 */
 	u8 *exception_sp;		/*					0x38 */
@@ -73,7 +73,7 @@ struct paca_struct {
 	STAB xStab_data;		/* Segment table information		0x50,0x58,0x60 */
 	u8 xSegments[STAB_CACHE_SIZE];	/* Cache of used stab entries		0x68,0x70 */
 	u8 xProcEnabled;		/* 1=soft enabled			0x78 */
-	u8 xHrdIntCount;		/* Count of active hardware interrupts  0x79  */
+	u8 unused2;
 	u8 prof_enabled;		/* 1=iSeries profiling enabled          0x7A */
 	u8 stab_cache_pointer;	
 	u8 resv1[4];			/*					0x7B-0x7F */

include/asm-ppc64/prom.h

@@ -183,8 +183,6 @@ extern struct device_node *find_type_devices(const char *type);
 extern struct device_node *find_path_device(const char *path);
 extern struct device_node *find_compatible_devices(const char *type,
 						   const char *compat);
-extern struct device_node *find_pci_device_OFnode(unsigned char bus,
-	unsigned char dev_fn);
 extern struct device_node *find_all_nodes(void);
 extern int device_is_compatible(struct device_node *device, const char *);
 extern int machine_is_compatible(const char *compat);

include/asm-ppc64/rtas.h

@@ -166,6 +166,13 @@ extern void rtas_restart(char *cmd);
 extern void rtas_power_off(void);
 extern void rtas_halt(void);
 
+/* Given an RTAS status code of 9900..9905 compute the hinted delay */
+unsigned int rtas_extended_busy_delay_time(int status);
+static inline int rtas_is_extended_busy(int status)
+{
+	return status >= 9900 && status <= 9909;
+}
+
 /* Some RTAS ops require a data buffer and that buffer must be < 4G.
  * Rather than having a memory allocator, just use this buffer
  * (get the lock first), make the RTAS call.  Copy the data instead

include/asm-ppc64/rwsem.h

 /*
- * include/asm-ppc/rwsem.h: R/W semaphores for PPC using the stuff
+ * include/asm-ppc64/rwsem.h: R/W semaphores for PPC using the stuff
  * in lib/rwsem.c.  Adapted largely from include/asm-i386/rwsem.h
  * by Paul Mackerras <paulus@samba.org>.
  *
@@ -74,9 +74,7 @@ static inline void init_rwsem(struct rw_semaphore *sem)
  */
 static inline void __down_read(struct rw_semaphore *sem)
 {
-	if (atomic_inc_return((atomic_t *)(&sem->count)) > 0)
-		smp_wmb();
-	else
+	if (unlikely(atomic_inc_return((atomic_t *)(&sem->count)) <= 0))
 		rwsem_down_read_failed(sem);
 }
 
@@ -87,7 +85,6 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 	while ((tmp = sem->count) >= 0) {
 		if (tmp == cmpxchg(&sem->count, tmp,
 				   tmp + RWSEM_ACTIVE_READ_BIAS)) {
-			smp_wmb();
 			return 1;
 		}
 	}
@@ -103,9 +100,7 @@ static inline void __down_write(struct rw_semaphore *sem)
 
 	tmp = atomic_add_return(RWSEM_ACTIVE_WRITE_BIAS,
 				(atomic_t *)(&sem->count));
-	if (tmp == RWSEM_ACTIVE_WRITE_BIAS)
-		smp_wmb();
-	else
+	if (unlikely(tmp != RWSEM_ACTIVE_WRITE_BIAS))
 		rwsem_down_write_failed(sem);
 }
 
@@ -115,7 +110,6 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
 
 	tmp = cmpxchg(&sem->count, RWSEM_UNLOCKED_VALUE,
 		      RWSEM_ACTIVE_WRITE_BIAS);
-	smp_wmb();
 	return tmp == RWSEM_UNLOCKED_VALUE;
 }
 
@@ -126,9 +120,8 @@ static inline void __up_read(struct rw_semaphore *sem)
 {
 	int tmp;
 
-	smp_wmb();
 	tmp = atomic_dec_return((atomic_t *)(&sem->count));
-	if (tmp < -1 && (tmp & RWSEM_ACTIVE_MASK) == 0)
+	if (unlikely(tmp < -1 && (tmp & RWSEM_ACTIVE_MASK) == 0))
 		rwsem_wake(sem);
 }
 
@@ -137,9 +130,8 @@ static inline void __up_read(struct rw_semaphore *sem)
  */
 static inline void __up_write(struct rw_semaphore *sem)
 {
-	smp_wmb();
-	if (atomic_sub_return(RWSEM_ACTIVE_WRITE_BIAS,
-			      (atomic_t *)(&sem->count)) < 0)
+	if (unlikely(atomic_sub_return(RWSEM_ACTIVE_WRITE_BIAS,
+			      (atomic_t *)(&sem->count)) < 0))
 		rwsem_wake(sem);
 }
 
@@ -158,7 +150,6 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 {
 	int tmp;
 
-	smp_wmb();
 	tmp = atomic_add_return(-RWSEM_WAITING_BIAS, (atomic_t *)(&sem->count));
 	if (tmp < 0)
 		rwsem_downgrade_wake(sem);
@@ -169,7 +160,6 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
  */
 static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
 {
-	smp_mb();
 	return atomic_add_return(delta, (atomic_t *)(&sem->count));
 }
 

include/asm-ppc64/semaphore.h

@@ -82,9 +82,8 @@ static inline void down(struct semaphore * sem)
 	/*
 	 * Try to get the semaphore, take the slow path if we fail.
 	 */
-	if (atomic_dec_return(&sem->count) < 0)
+	if (unlikely(atomic_dec_return(&sem->count) < 0))
 		__down(sem);
-	smp_wmb();
 }
 
 static inline int down_interruptible(struct semaphore * sem)
@@ -96,23 +95,18 @@ static inline int down_interruptible(struct semaphore * sem)
 #endif
 	might_sleep();
 
-	if (atomic_dec_return(&sem->count) < 0)
+	if (unlikely(atomic_dec_return(&sem->count) < 0))
 		ret = __down_interruptible(sem);
-	smp_wmb();
 	return ret;
 }
 
 static inline int down_trylock(struct semaphore * sem)
 {
-	int ret;
-
 #ifdef WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	ret = atomic_dec_if_positive(&sem->count) < 0;
-	smp_wmb();
-	return ret;
+	return atomic_dec_if_positive(&sem->count) < 0;
 }
 
 static inline void up(struct semaphore * sem)
@@ -121,8 +115,7 @@ static inline void up(struct semaphore * sem)
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	smp_wmb();
-	if (atomic_inc_return(&sem->count) <= 0)
+	if (unlikely(atomic_inc_return(&sem->count) <= 0))
 		__up(sem);
 }
 

include/asm-ppc64/serial.h

@@ -26,11 +26,9 @@
 
 /* Standard COM flags (except for COM4, because of the 8514 problem) */
 #ifdef CONFIG_SERIAL_DETECT_IRQ
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
-#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
+#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
 #else
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
-#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
+#define STD_COM_FLAGS ASYNC_BOOT_AUTOCONF
 #endif
 
 #ifdef CONFIG_SERIAL_MANY_PORTS
@@ -60,8 +58,8 @@
 	/* UART CLK   PORT IRQ     FLAGS        */			\
 	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */	\
 	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },	/* ttyS1 */	\
-	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },	/* ttyS2 */	\
-	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },	/* ttyS3 */
+	{ 0, BASE_BAUD, 0x890, 0xf, STD_COM_FLAGS },	/* ttyS2 */	\
+	{ 0, BASE_BAUD, 0x898, 0xe, STD_COM_FLAGS },	/* ttyS3 */
 
 
 #ifdef CONFIG_SERIAL_MANY_PORTS

include/asm-ppc64/topology.h

@@ -24,14 +24,16 @@ static inline int cpu_to_node(int cpu)
 
 #define parent_node(node)	(node)
 
-static inline unsigned long node_to_cpumask(int node)
+static inline cpumask_t node_to_cpumask(int node)
 {
 	return numa_cpumask_lookup_table[node];
 }
 
 static inline int node_to_first_cpu(int node)
 {
-	return __ffs(node_to_cpumask(node));
+	cpumask_t tmp;
+	tmp = node_to_cpumask(node);
+	return first_cpu(tmp);
 }
 
 #define node_to_memblk(node)	(node)

include/asm-ppc64/uaccess.h

@@ -132,6 +132,7 @@ extern long __put_user_bad(void);
 
 #define __put_user_size(x,ptr,size,retval,errret)			\
 do {									\
+	might_sleep();							\
 	retval = 0;							\
 	switch (size) {							\
 	  case 1: __put_user_asm(x,ptr,retval,"stb",errret); break;	\
@@ -185,6 +186,7 @@ extern long __get_user_bad(void);
 
 #define __get_user_size(x,ptr,size,retval,errret)			\
 do {									\
+	might_sleep();							\
 	retval = 0;							\
 	switch (size) {							\
 	  case 1: __get_user_asm(x,ptr,retval,"lbz",errret); break;	\
@@ -220,6 +222,7 @@ extern unsigned long __copy_tofrom_user(void *to, const void *from,
 static inline unsigned long
 __copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+	might_sleep();
 	if (__builtin_constant_p(n)) {
 		unsigned long ret;
 
@@ -244,6 +247,7 @@ __copy_from_user(void *to, const void __user *from, unsigned long n)
 static inline unsigned long
 __copy_to_user(void __user *to, const void *from, unsigned long n)
 {
+	might_sleep();
 	if (__builtin_constant_p(n)) {
 		unsigned long ret;
 
@@ -289,6 +293,7 @@ copy_to_user(void *to, const void *from, unsigned long n)
 static inline unsigned long
 copy_in_user(void *to, const void *from, unsigned long n)
 {
+	might_sleep();
 	if (likely(access_ok(VERIFY_READ, from, n) &&
 	    access_ok(VERIFY_WRITE, to, n)))
 		n =__copy_tofrom_user(to, from, n);
@@ -300,6 +305,7 @@ extern unsigned long __clear_user(void *addr, unsigned long size);
 static inline unsigned long
 clear_user(void *addr, unsigned long size)
 {
+	might_sleep();
 	if (likely(access_ok(VERIFY_WRITE, addr, size)))
 		size = __clear_user(addr, size);
 	return size;
@@ -310,6 +316,7 @@ extern int __strncpy_from_user(char *dst, const char *src, long count);
 static inline long
 strncpy_from_user(char *dst, const char *src, long count)
 {
+	might_sleep();
 	if (likely(access_ok(VERIFY_READ, src, 1)))
 		return __strncpy_from_user(dst, src, count);
 	return -EFAULT;
@@ -329,6 +336,7 @@ extern int __strnlen_user(const char *str, long len);
  */
 static inline int strnlen_user(const char *str, long len)
 {
+	might_sleep();
 	if (likely(access_ok(VERIFY_READ, str, 1)))
 		return __strnlen_user(str, len);
 	return 0;