Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Fix IRQ ->set_affinity() methods.
  sparc: cpumask_of_node() should handle -1 as a node
  sparc64: Update defconfig.
  sparc: Add missing SW perf fault events.
  sparc64: Fully support both performance counters.
  sparc64: Add perf callchain support.
  sparc: convert to arch_gettimeoffset()
  sparc: leds_resource.end assigned to itself in clock_board_probe()
  sparc32: Fix page_to_phys().
  sparc: Simplify param.h by simply including <asm-generic/param.h>
  sparc32: Update defconfig.
  SPARC: use helpers for rlimits
  sparc: copy_from_user() should not return -EFAULT

arch/sparc/Kconfig

@@ -64,8 +64,11 @@ config BITS
 	default 64 if SPARC64
 
 config GENERIC_TIME
+	def_bool y
+
+config ARCH_USES_GETTIMEOFFSET
 	bool
-	default y if SPARC64
+	default y if SPARC32
 
 config GENERIC_CMOS_UPDATE
 	bool

arch/sparc/configs/sparc32_defconfig

 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.31
-# Wed Sep 16 00:03:43 2009
+# Linux kernel version: 2.6.33-rc2
+# Mon Jan 11 23:20:31 2010
 #
 # CONFIG_64BIT is not set
 CONFIG_SPARC=y
@@ -41,6 +41,7 @@ CONFIG_POSIX_MQUEUE_SYSCTL=y
 #
 CONFIG_TREE_RCU=y
 # CONFIG_TREE_PREEMPT_RCU is not set
+# CONFIG_TINY_RCU is not set
 # CONFIG_RCU_TRACE is not set
 CONFIG_RCU_FANOUT=32
 # CONFIG_RCU_FANOUT_EXACT is not set
@@ -88,21 +89,21 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_AIO=y
-CONFIG_HAVE_PERF_COUNTERS=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_PERF_USE_VMALLOC=y
 
 #
-# Performance Counters
+# Kernel Performance Events And Counters
 #
+# CONFIG_PERF_EVENTS is not set
 # CONFIG_PERF_COUNTERS is not set
 CONFIG_VM_EVENT_COUNTERS=y
 CONFIG_PCI_QUIRKS=y
-# CONFIG_STRIP_ASM_SYMS is not set
 CONFIG_COMPAT_BRK=y
 CONFIG_SLAB=y
 # CONFIG_SLUB is not set
 # CONFIG_SLOB is not set
 # CONFIG_PROFILING is not set
-# CONFIG_MARKERS is not set
 CONFIG_HAVE_OPROFILE=y
 CONFIG_HAVE_ARCH_TRACEHOOK=y
 CONFIG_HAVE_DMA_ATTRS=y
@@ -131,14 +132,41 @@ CONFIG_LBDAF=y
 # IO Schedulers
 #
 CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
 CONFIG_IOSCHED_DEADLINE=y
 CONFIG_IOSCHED_CFQ=y
-# CONFIG_DEFAULT_AS is not set
 # CONFIG_DEFAULT_DEADLINE is not set
 CONFIG_DEFAULT_CFQ=y
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="cfq"
+# CONFIG_INLINE_SPIN_TRYLOCK is not set
+# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
+# CONFIG_INLINE_SPIN_LOCK is not set
+# CONFIG_INLINE_SPIN_LOCK_BH is not set
+# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
+# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
+CONFIG_INLINE_SPIN_UNLOCK=y
+# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
+CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
+# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
+# CONFIG_INLINE_READ_TRYLOCK is not set
+# CONFIG_INLINE_READ_LOCK is not set
+# CONFIG_INLINE_READ_LOCK_BH is not set
+# CONFIG_INLINE_READ_LOCK_IRQ is not set
+# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
+CONFIG_INLINE_READ_UNLOCK=y
+# CONFIG_INLINE_READ_UNLOCK_BH is not set
+CONFIG_INLINE_READ_UNLOCK_IRQ=y
+# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
+# CONFIG_INLINE_WRITE_TRYLOCK is not set
+# CONFIG_INLINE_WRITE_LOCK is not set
+# CONFIG_INLINE_WRITE_LOCK_BH is not set
+# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
+# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
+CONFIG_INLINE_WRITE_UNLOCK=y
+# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
+CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
+# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
+# CONFIG_MUTEX_SPIN_ON_OWNER is not set
 # CONFIG_FREEZER is not set
 
 #
@@ -168,8 +196,7 @@ CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_PHYS_ADDR_T_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=1
 CONFIG_BOUNCE=y
-CONFIG_HAVE_MLOCK=y
-CONFIG_HAVE_MLOCKED_PAGE_BIT=y
+# CONFIG_KSM is not set
 CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
 CONFIG_SUN_PM=y
 # CONFIG_SPARC_LED is not set
@@ -257,6 +284,7 @@ CONFIG_INET6_XFRM_MODE_TUNNEL=m
 CONFIG_INET6_XFRM_MODE_BEET=m
 # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
 CONFIG_IPV6_SIT=m
+# CONFIG_IPV6_SIT_6RD is not set
 CONFIG_IPV6_NDISC_NODETYPE=y
 CONFIG_IPV6_TUNNEL=m
 # CONFIG_IPV6_MULTIPLE_TABLES is not set
@@ -295,9 +323,6 @@ CONFIG_NET_PKTGEN=m
 # CONFIG_AF_RXRPC is not set
 CONFIG_WIRELESS=y
 # CONFIG_CFG80211 is not set
-CONFIG_CFG80211_DEFAULT_PS_VALUE=0
-CONFIG_WIRELESS_OLD_REGULATORY=y
-# CONFIG_WIRELESS_EXT is not set
 # CONFIG_LIB80211 is not set
 
 #
@@ -335,6 +360,10 @@ CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_COW_COMMON is not set
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
+
+#
+# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
+#
 # CONFIG_BLK_DEV_NBD is not set
 # CONFIG_BLK_DEV_SX8 is not set
 CONFIG_BLK_DEV_RAM=y
@@ -398,8 +427,11 @@ CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
 # CONFIG_SCSI_CXGB3_ISCSI is not set
 # CONFIG_SCSI_BNX2_ISCSI is not set
+# CONFIG_BE2ISCSI is not set
 # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
+# CONFIG_SCSI_HPSA is not set
 # CONFIG_SCSI_3W_9XXX is not set
+# CONFIG_SCSI_3W_SAS is not set
 # CONFIG_SCSI_ACARD is not set
 # CONFIG_SCSI_AACRAID is not set
 # CONFIG_SCSI_AIC7XXX is not set
@@ -434,7 +466,9 @@ CONFIG_SCSI_QLOGICPTI=m
 # CONFIG_SCSI_DEBUG is not set
 CONFIG_SCSI_SUNESP=y
 # CONFIG_SCSI_PMCRAID is not set
+# CONFIG_SCSI_PM8001 is not set
 # CONFIG_SCSI_SRP is not set
+# CONFIG_SCSI_BFA_FC is not set
 # CONFIG_SCSI_DH is not set
 # CONFIG_SCSI_OSD_INITIATOR is not set
 # CONFIG_ATA is not set
@@ -450,7 +484,7 @@ CONFIG_SCSI_SUNESP=y
 #
 
 #
-# See the help texts for more information.
+# The newer stack is recommended.
 #
 # CONFIG_FIREWIRE is not set
 # CONFIG_IEEE1394 is not set
@@ -487,6 +521,7 @@ CONFIG_SUNQE=m
 # CONFIG_NET_PCI is not set
 # CONFIG_B44 is not set
 # CONFIG_KS8842 is not set
+# CONFIG_KS8851_MLL is not set
 # CONFIG_ATL2 is not set
 CONFIG_NETDEV_1000=y
 # CONFIG_ACENIC is not set
@@ -546,6 +581,7 @@ CONFIG_CHELSIO_T3_DEPENDS=y
 # CONFIG_NETCONSOLE is not set
 # CONFIG_NETPOLL is not set
 # CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_VMXNET3 is not set
 # CONFIG_ISDN is not set
 # CONFIG_PHONE is not set
 
@@ -555,6 +591,7 @@ CONFIG_CHELSIO_T3_DEPENDS=y
 CONFIG_INPUT=y
 # CONFIG_INPUT_FF_MEMLESS is not set
 # CONFIG_INPUT_POLLDEV is not set
+# CONFIG_INPUT_SPARSEKMAP is not set
 
 #
 # Userland interfaces
@@ -574,6 +611,7 @@ CONFIG_INPUT_KEYBOARD=y
 CONFIG_KEYBOARD_ATKBD=m
 # CONFIG_KEYBOARD_LKKBD is not set
 # CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_OPENCORES is not set
 # CONFIG_KEYBOARD_STOWAWAY is not set
 CONFIG_KEYBOARD_SUNKBD=m
 # CONFIG_KEYBOARD_XTKBD is not set
@@ -604,6 +642,7 @@ CONFIG_SERIO_SERPORT=m
 # CONFIG_SERIO_PCIPS2 is not set
 CONFIG_SERIO_LIBPS2=m
 # CONFIG_SERIO_RAW is not set
+# CONFIG_SERIO_ALTERA_PS2 is not set
 # CONFIG_GAMEPORT is not set
 
 #
@@ -636,6 +675,7 @@ CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 CONFIG_CONSOLE_POLL=y
 # CONFIG_SERIAL_JSM is not set
+# CONFIG_SERIAL_GRLIB_GAISLER_APBUART is not set
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
 CONFIG_LEGACY_PTYS=y
@@ -661,6 +701,11 @@ CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
 # CONFIG_POWER_SUPPLY is not set
 CONFIG_HWMON=y
 # CONFIG_HWMON_VID is not set
+# CONFIG_HWMON_DEBUG_CHIP is not set
+
+#
+# Native drivers
+#
 # CONFIG_SENSORS_I5K_AMB is not set
 # CONFIG_SENSORS_F71805F is not set
 # CONFIG_SENSORS_F71882FG is not set
@@ -675,9 +720,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_VT8231 is not set
 # CONFIG_SENSORS_W83627HF is not set
 # CONFIG_SENSORS_W83627EHF is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
 # CONFIG_THERMAL is not set
-# CONFIG_THERMAL_HWMON is not set
 # CONFIG_WATCHDOG is not set
 CONFIG_SSB_POSSIBLE=y
 
@@ -699,6 +742,7 @@ CONFIG_SSB_POSSIBLE=y
 #
 # Graphics support
 #
+CONFIG_VGA_ARB=y
 # CONFIG_VGASTATE is not set
 # CONFIG_VIDEO_OUTPUT_CONTROL is not set
 # CONFIG_FB is not set
@@ -776,7 +820,9 @@ CONFIG_RTC_INTF_DEV=y
 # CONFIG_RTC_DRV_M48T86 is not set
 # CONFIG_RTC_DRV_M48T35 is not set
 CONFIG_RTC_DRV_M48T59=y
+# CONFIG_RTC_DRV_MSM6242 is not set
 # CONFIG_RTC_DRV_BQ4802 is not set
+# CONFIG_RTC_DRV_RP5C01 is not set
 # CONFIG_RTC_DRV_V3020 is not set
 
 #
@@ -955,6 +1001,7 @@ CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 CONFIG_ENABLE_MUST_CHECK=y
 CONFIG_FRAME_WARN=1024
 CONFIG_MAGIC_SYSRQ=y
+# CONFIG_STRIP_ASM_SYMS is not set
 # CONFIG_UNUSED_SYMBOLS is not set
 # CONFIG_DEBUG_FS is not set
 # CONFIG_HEADERS_CHECK is not set
@@ -1003,9 +1050,9 @@ CONFIG_KGDB=y
 CONFIG_KGDB_SERIAL_CONSOLE=y
 CONFIG_KGDB_TESTS=y
 # CONFIG_KGDB_TESTS_ON_BOOT is not set
-# CONFIG_KMEMCHECK is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
 # CONFIG_STACK_DEBUG is not set
+# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
 
 #
 # Security options
@@ -1013,7 +1060,11 @@ CONFIG_KGDB_TESTS=y
 # CONFIG_KEYS is not set
 # CONFIG_SECURITY is not set
 # CONFIG_SECURITYFS is not set
-# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_DEFAULT_SECURITY_SELINUX is not set
+# CONFIG_DEFAULT_SECURITY_SMACK is not set
+# CONFIG_DEFAULT_SECURITY_TOMOYO is not set
+CONFIG_DEFAULT_SECURITY_DAC=y
+CONFIG_DEFAULT_SECURITY=""
 CONFIG_CRYPTO=y
 
 #

arch/sparc/include/asm/io_32.h

@@ -8,7 +8,7 @@
 #include <asm/page.h>      /* IO address mapping routines need this */
 #include <asm/system.h>
 
-#define page_to_phys(page)	(((page) - mem_map) << PAGE_SHIFT)
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 
 static inline u32 flip_dword (u32 l)
 {

arch/sparc/include/asm/page_32.h

@@ -143,7 +143,7 @@ extern unsigned long pfn_base;
 #define phys_to_virt		__va
 
 #define ARCH_PFN_OFFSET		(pfn_base)
-#define virt_to_page(kaddr)	(mem_map + ((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT)))
+#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
 #define pfn_valid(pfn)		(((pfn) >= (pfn_base)) && (((pfn)-(pfn_base)) < max_mapnr))
 #define virt_addr_valid(kaddr)	((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT) < max_mapnr)

arch/sparc/include/asm/param.h

 #ifndef _ASMSPARC_PARAM_H
 #define _ASMSPARC_PARAM_H
 
-#ifdef __KERNEL__
-# define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
-# define USER_HZ	100	/* .. some user interfaces are in "ticks" */
-# define CLOCKS_PER_SEC (USER_HZ)
-#endif
-
-#ifndef HZ
-#define HZ 100
-#endif
-
 #define EXEC_PAGESIZE	8192    /* Thanks for sun4's we carry baggage... */
+#include <asm-generic/param.h>
 
-#ifndef NOGROUP
-#define NOGROUP		(-1)
-#endif
-
-#define MAXHOSTNAMELEN	64	/* max length of hostname */
-
-#endif
+#endif /* _ASMSPARC_PARAM_H */

arch/sparc/include/asm/timex_32.h

@@ -12,4 +12,5 @@
 typedef unsigned long cycles_t;
 #define get_cycles()	(0)
 
+extern u32 (*do_arch_gettimeoffset)(void);
 #endif

arch/sparc/include/asm/topology_64.h

@@ -12,7 +12,9 @@ static inline int cpu_to_node(int cpu)
 
 #define parent_node(node)	(node)
 
-#define cpumask_of_node(node) (&numa_cpumask_lookup_table[node])
+#define cpumask_of_node(node) ((node) == -1 ?				\
+			       cpu_all_mask :				\
+			       &numa_cpumask_lookup_table[node])
 
 struct pci_bus;
 #ifdef CONFIG_PCI

arch/sparc/include/asm/uaccess_32.h

@@ -274,7 +274,7 @@ static inline unsigned long copy_from_user(void *to, const void __user *from, un
 
 	if (unlikely(sz != -1 && sz < n)) {
 		copy_from_user_overflow();
-		return -EFAULT;
+		return n;
 	}
 
 	if (n && __access_ok((unsigned long) from, n))

arch/sparc/include/asm/uaccess_64.h

@@ -221,8 +221,8 @@ extern unsigned long copy_from_user_fixup(void *to, const void __user *from,
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long size)
 {
-	unsigned long ret = (unsigned long) -EFAULT;
 	int sz = __compiletime_object_size(to);
+	unsigned long ret = size;
 
 	if (likely(sz == -1 || sz >= size)) {
 		ret = ___copy_from_user(to, from, size);

arch/sparc/kernel/central.c

@@ -99,7 +99,7 @@ static int __devinit clock_board_probe(struct of_device *op,
 
 	p->leds_resource.start = (unsigned long)
 		(p->clock_regs + CLOCK_CTRL);
-	p->leds_resource.end = p->leds_resource.end;
+	p->leds_resource.end = p->leds_resource.start;
 	p->leds_resource.name = "leds";
 
 	p->leds_pdev.name = "sunfire-clockboard-leds";
@@ -194,7 +194,7 @@ static int __devinit fhc_probe(struct of_device *op,
 	if (!p->central) {
 		p->leds_resource.start = (unsigned long)
 			(p->pregs + FHC_PREGS_CTRL);
-		p->leds_resource.end = p->leds_resource.end;
+		p->leds_resource.end = p->leds_resource.start;
 		p->leds_resource.name = "leds";
 
 		p->leds_pdev.name = "sunfire-fhc-leds";

arch/sparc/kernel/irq_64.c

@@ -250,12 +250,12 @@ struct irq_handler_data {
 };
 
 #ifdef CONFIG_SMP
-static int irq_choose_cpu(unsigned int virt_irq)
+static int irq_choose_cpu(unsigned int virt_irq, const struct cpumask *affinity)
 {
 	cpumask_t mask;
 	int cpuid;
 
-	cpumask_copy(&mask, irq_desc[virt_irq].affinity);
+	cpumask_copy(&mask, affinity);
 	if (cpus_equal(mask, cpu_online_map)) {
 		cpuid = map_to_cpu(virt_irq);
 	} else {
@@ -268,7 +268,7 @@ static int irq_choose_cpu(unsigned int virt_irq)
 	return cpuid;
 }
 #else
-static int irq_choose_cpu(unsigned int virt_irq)
+static int irq_choose_cpu(unsigned int virt_irq, const struct cpumask *affinity)
 {
 	return real_hard_smp_processor_id();
 }
@@ -282,7 +282,8 @@ static void sun4u_irq_enable(unsigned int virt_irq)
 		unsigned long cpuid, imap, val;
 		unsigned int tid;
 
-		cpuid = irq_choose_cpu(virt_irq);
+		cpuid = irq_choose_cpu(virt_irq,
+				       irq_desc[virt_irq].affinity);
 		imap = data->imap;
 
 		tid = sun4u_compute_tid(imap, cpuid);
@@ -299,7 +300,24 @@ static void sun4u_irq_enable(unsigned int virt_irq)
 static int sun4u_set_affinity(unsigned int virt_irq,
 			       const struct cpumask *mask)
 {
-	sun4u_irq_enable(virt_irq);
+	struct irq_handler_data *data = get_irq_chip_data(virt_irq);
+
+	if (likely(data)) {
+		unsigned long cpuid, imap, val;
+		unsigned int tid;
+
+		cpuid = irq_choose_cpu(virt_irq, mask);
+		imap = data->imap;
+
+		tid = sun4u_compute_tid(imap, cpuid);
+
+		val = upa_readq(imap);
+		val &= ~(IMAP_TID_UPA | IMAP_TID_JBUS |
+			 IMAP_AID_SAFARI | IMAP_NID_SAFARI);
+		val |= tid | IMAP_VALID;
+		upa_writeq(val, imap);
+		upa_writeq(ICLR_IDLE, data->iclr);
+	}
 
 	return 0;
 }
@@ -340,7 +358,8 @@ static void sun4u_irq_eoi(unsigned int virt_irq)
 static void sun4v_irq_enable(unsigned int virt_irq)
 {
 	unsigned int ino = virt_irq_table[virt_irq].dev_ino;
-	unsigned long cpuid = irq_choose_cpu(virt_irq);
+	unsigned long cpuid = irq_choose_cpu(virt_irq,
+					     irq_desc[virt_irq].affinity);
 	int err;
 
 	err = sun4v_intr_settarget(ino, cpuid);
@@ -361,7 +380,7 @@ static int sun4v_set_affinity(unsigned int virt_irq,
 			       const struct cpumask *mask)
 {
 	unsigned int ino = virt_irq_table[virt_irq].dev_ino;
-	unsigned long cpuid = irq_choose_cpu(virt_irq);
+	unsigned long cpuid = irq_choose_cpu(virt_irq, mask);
 	int err;
 
 	err = sun4v_intr_settarget(ino, cpuid);
@@ -403,7 +422,7 @@ static void sun4v_virq_enable(unsigned int virt_irq)
 	unsigned long cpuid, dev_handle, dev_ino;
 	int err;
 
-	cpuid = irq_choose_cpu(virt_irq);
+	cpuid = irq_choose_cpu(virt_irq, irq_desc[virt_irq].affinity);
 
 	dev_handle = virt_irq_table[virt_irq].dev_handle;
 	dev_ino = virt_irq_table[virt_irq].dev_ino;
@@ -433,7 +452,7 @@ static int sun4v_virt_set_affinity(unsigned int virt_irq,
 	unsigned long cpuid, dev_handle, dev_ino;
 	int err;
 
-	cpuid = irq_choose_cpu(virt_irq);
+	cpuid = irq_choose_cpu(virt_irq, mask);
 
 	dev_handle = virt_irq_table[virt_irq].dev_handle;
 	dev_ino = virt_irq_table[virt_irq].dev_ino;

arch/sparc/kernel/pcic.c

@@ -30,6 +30,7 @@
 #include <asm/oplib.h>
 #include <asm/prom.h>
 #include <asm/pcic.h>
+#include <asm/timex.h>
 #include <asm/timer.h>
 #include <asm/uaccess.h>
 #include <asm/irq_regs.h>
@@ -163,8 +164,6 @@ void __iomem *pcic_regs;
 volatile int pcic_speculative;
 volatile int pcic_trapped;
 
-static void pci_do_gettimeofday(struct timeval *tv);
-static int pci_do_settimeofday(struct timespec *tv);
 
 #define CONFIG_CMD(bus, device_fn, where) (0x80000000 | (((unsigned int)bus) << 16) | (((unsigned int)device_fn) << 8) | (where & ~3))
 
@@ -716,19 +715,27 @@ static irqreturn_t pcic_timer_handler (int irq, void *h)
 #define USECS_PER_JIFFY  10000  /* We have 100HZ "standard" timer for sparc */
 #define TICK_TIMER_LIMIT ((100*1000000/4)/100)
 
+u32 pci_gettimeoffset(void)
+{
+	/*
+	 * We divide all by 100
+	 * to have microsecond resolution and to avoid overflow
+	 */
+	unsigned long count =
+	    readl(pcic0.pcic_regs+PCI_SYS_COUNTER) & ~PCI_SYS_COUNTER_OVERFLOW;
+	count = ((count/100)*USECS_PER_JIFFY) / (TICK_TIMER_LIMIT/100);
+	return count * 1000;
+}
+
+
 void __init pci_time_init(void)
 {
 	struct linux_pcic *pcic = &pcic0;
 	unsigned long v;
 	int timer_irq, irq;
 
-	/* A hack until do_gettimeofday prototype is moved to arch specific headers
-	   and btfixupped. Patch do_gettimeofday with ba pci_do_gettimeofday; nop */
-	((unsigned int *)do_gettimeofday)[0] = 
-	    0x10800000 | ((((unsigned long)pci_do_gettimeofday -
-	     (unsigned long)do_gettimeofday) >> 2) & 0x003fffff);
-	((unsigned int *)do_gettimeofday)[1] = 0x01000000;
-	BTFIXUPSET_CALL(bus_do_settimeofday, pci_do_settimeofday, BTFIXUPCALL_NORM);
+	do_arch_gettimeoffset = pci_gettimeoffset;
+
 	btfixup();
 
 	writel (TICK_TIMER_LIMIT, pcic->pcic_regs+PCI_SYS_LIMIT);
@@ -746,84 +753,6 @@ void __init pci_time_init(void)
 	local_irq_enable();
 }
 
-static inline unsigned long do_gettimeoffset(void)
-{
-	/*
-	 * We divide all by 100
-	 * to have microsecond resolution and to avoid overflow
-	 */
-	unsigned long count =
-	    readl(pcic0.pcic_regs+PCI_SYS_COUNTER) & ~PCI_SYS_COUNTER_OVERFLOW;
-	count = ((count/100)*USECS_PER_JIFFY) / (TICK_TIMER_LIMIT/100);
-	return count;
-}
-
-static void pci_do_gettimeofday(struct timeval *tv)
-{
-	unsigned long flags;
-	unsigned long seq;
-	unsigned long usec, sec;
-	unsigned long max_ntp_tick = tick_usec - tickadj;
-
-	do {
-		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = do_gettimeoffset();
-
-		/*
-		 * If time_adjust is negative then NTP is slowing the clock
-		 * so make sure not to go into next possible interval.
-		 * Better to lose some accuracy than have time go backwards..
-		 */
-		if (unlikely(time_adjust < 0))
-			usec = min(usec, max_ntp_tick);
-
-		sec = xtime.tv_sec;
-		usec += (xtime.tv_nsec / 1000);
-	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
-	while (usec >= 1000000) {
-		usec -= 1000000;
-		sec++;
-	}
-
-	tv->tv_sec = sec;
-	tv->tv_usec = usec;
-}
-
-static int pci_do_settimeofday(struct timespec *tv)
-{
-	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
-		return -EINVAL;
-
-	/*
-	 * This is revolting. We need to set "xtime" correctly. However, the
-	 * value in this location is the value at the most recent update of
-	 * wall time.  Discover what correction gettimeofday() would have
-	 * made, and then undo it!
-	 */
-	tv->tv_nsec -= 1000 * do_gettimeoffset();
-	while (tv->tv_nsec < 0) {
-		tv->tv_nsec += NSEC_PER_SEC;
-		tv->tv_sec--;
-	}
-
-	wall_to_monotonic.tv_sec += xtime.tv_sec - tv->tv_sec;
-	wall_to_monotonic.tv_nsec += xtime.tv_nsec - tv->tv_nsec;
-
-	if (wall_to_monotonic.tv_nsec > NSEC_PER_SEC) {
-		wall_to_monotonic.tv_nsec -= NSEC_PER_SEC;
-		wall_to_monotonic.tv_sec++;
-	}
-	if (wall_to_monotonic.tv_nsec < 0) {
-		wall_to_monotonic.tv_nsec += NSEC_PER_SEC;
-		wall_to_monotonic.tv_sec--;
-	}
-
-	xtime.tv_sec = tv->tv_sec;
-	xtime.tv_nsec = tv->tv_nsec;
-	ntp_clear();
-	return 0;
-}
 
 #if 0
 static void watchdog_reset() {

arch/sparc/kernel/sys_sparc_64.c

@@ -365,6 +365,7 @@ EXPORT_SYMBOL(get_fb_unmapped_area);
 void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	unsigned long random_factor = 0UL;
+	unsigned long gap;
 
 	if (current->flags & PF_RANDOMIZE) {
 		random_factor = get_random_int();
@@ -379,9 +380,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 * Fall back to the standard layout if the personality
 	 * bit is set, or if the expected stack growth is unlimited:
 	 */
+	gap = rlimit(RLIMIT_STACK);
 	if (!test_thread_flag(TIF_32BIT) ||
 	    (current->personality & ADDR_COMPAT_LAYOUT) ||
-	    current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY ||
+	    gap == RLIM_INFINITY ||
 	    sysctl_legacy_va_layout) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
 		mm->get_unmapped_area = arch_get_unmapped_area;
@@ -389,9 +391,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	} else {
 		/* We know it's 32-bit */
 		unsigned long task_size = STACK_TOP32;
-		unsigned long gap;
 
-		gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
 		if (gap < 128 * 1024 * 1024)
 			gap = 128 * 1024 * 1024;
 		if (gap > (task_size / 6 * 5))

arch/sparc/kernel/time_32.c

@@ -35,6 +35,7 @@
 #include <linux/platform_device.h>
 
 #include <asm/oplib.h>
+#include <asm/timex.h>
 #include <asm/timer.h>
 #include <asm/system.h>
 #include <asm/irq.h>
@@ -51,7 +52,6 @@ DEFINE_SPINLOCK(rtc_lock);
 EXPORT_SYMBOL(rtc_lock);
 
 static int set_rtc_mmss(unsigned long);
-static int sbus_do_settimeofday(struct timespec *tv);
 
 unsigned long profile_pc(struct pt_regs *regs)
 {
@@ -76,6 +76,8 @@ EXPORT_SYMBOL(profile_pc);
 
 __volatile__ unsigned int *master_l10_counter;
 
+u32 (*do_arch_gettimeoffset)(void);
+
 /*
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
@@ -196,35 +198,14 @@ static int __init clock_init(void)
 {
 	return of_register_driver(&clock_driver, &of_platform_bus_type);
 }
-
 /* Must be after subsys_initcall() so that busses are probed.  Must
  * be before device_initcall() because things like the RTC driver
  * need to see the clock registers.
  */
 fs_initcall(clock_init);
 
-static void __init sbus_time_init(void)
-{
-
-	BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM);
-	btfixup();
-
-	sparc_init_timers(timer_interrupt);
-}
-
-void __init time_init(void)
-{
-#ifdef CONFIG_PCI
-	extern void pci_time_init(void);
-	if (pcic_present()) {
-		pci_time_init();
-		return;
-	}
-#endif
-	sbus_time_init();
-}
 
-static inline unsigned long do_gettimeoffset(void)
+u32 sbus_do_gettimeoffset(void)
 {
 	unsigned long val = *master_l10_counter;
 	unsigned long usec = (val >> 10) & 0x1fffff;
@@ -233,86 +214,39 @@ static inline unsigned long do_gettimeoffset(void)
 	if (val & 0x80000000)
 		usec += 1000000 / HZ;
 
-	return usec;
+	return usec * 1000;
 }
 
-/* Ok, my cute asm atomicity trick doesn't work anymore.
- * There are just too many variables that need to be protected
- * now (both members of xtime, et al.)
- */
-void do_gettimeofday(struct timeval *tv)
-{
-	unsigned long flags;
-	unsigned long seq;
-	unsigned long usec, sec;
-	unsigned long max_ntp_tick = tick_usec - tickadj;
-
-	do {
-		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = do_gettimeoffset();
-
-		/*
-		 * If time_adjust is negative then NTP is slowing the clock
-		 * so make sure not to go into next possible interval.
-		 * Better to lose some accuracy than have time go backwards..
-		 */
-		if (unlikely(time_adjust < 0))
-			usec = min(usec, max_ntp_tick);
-
-		sec = xtime.tv_sec;
-		usec += (xtime.tv_nsec / 1000);
-	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
-	while (usec >= 1000000) {
-		usec -= 1000000;
-		sec++;
-	}
 
-	tv->tv_sec = sec;
-	tv->tv_usec = usec;
-}
-
-EXPORT_SYMBOL(do_gettimeofday);
-
-int do_settimeofday(struct timespec *tv)
+u32 arch_gettimeoffset(void)
 {
-	int ret;
-
-	write_seqlock_irq(&xtime_lock);
-	ret = bus_do_settimeofday(tv);
-	write_sequnlock_irq(&xtime_lock);
-	clock_was_set();
-	return ret;
+	if (unlikely(!do_arch_gettimeoffset))
+		return 0;
+	return do_arch_gettimeoffset();
 }
 
-EXPORT_SYMBOL(do_settimeofday);
-
-static int sbus_do_settimeofday(struct timespec *tv)
+static void __init sbus_time_init(void)
 {
-	time_t wtm_sec, sec = tv->tv_sec;
-	long wtm_nsec, nsec = tv->tv_nsec;
+	do_arch_gettimeoffset = sbus_do_gettimeoffset;
 
-	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
-		return -EINVAL;
-
-	/*
-	 * This is revolting. We need to set "xtime" correctly. However, the
-	 * value in this location is the value at the most recent update of
-	 * wall time.  Discover what correction gettimeofday() would have
-	 * made, and then undo it!
-	 */
-	nsec -= 1000 * do_gettimeoffset();
-
-	wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
-	wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
+	btfixup();
 
-	set_normalized_timespec(&xtime, sec, nsec);
-	set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
+	sparc_init_timers(timer_interrupt);
+}
 
-	ntp_clear();
-	return 0;
+void __init time_init(void)
+{
+#ifdef CONFIG_PCI
+	extern void pci_time_init(void);
+	if (pcic_present()) {
+		pci_time_init();
+		return;
+	}
+#endif
+	sbus_time_init();
 }
 
+
 static int set_rtc_mmss(unsigned long secs)
 {
 	struct rtc_device *rtc = rtc_class_open("rtc0");

arch/sparc/mm/fault_32.c

@@ -18,6 +18,7 @@
 #include <linux/signal.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
+#include <linux/perf_event.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/kdebug.h>
@@ -203,6 +204,8 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
         if (in_atomic() || !mm)
                 goto no_context;
 
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
+
 	down_read(&mm->mmap_sem);
 
 	/*
@@ -249,10 +252,15 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
 			goto do_sigbus;
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
+	if (fault & VM_FAULT_MAJOR) {
 		current->maj_flt++;
-	else
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
+			      regs, address);
+	} else {
 		current->min_flt++;
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
+			      regs, address);
+	}
 	up_read(&mm->mmap_sem);
 	return;
 

arch/sparc/mm/fault_64.c

@@ -16,6 +16,7 @@
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/perf_event.h>
 #include <linux/interrupt.h>
 #include <linux/kprobes.h>
 #include <linux/kdebug.h>
@@ -296,6 +297,8 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
 	if (in_atomic() || !mm)
 		goto intr_or_no_mm;
 
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
+
 	if (!down_read_trylock(&mm->mmap_sem)) {
 		if ((regs->tstate & TSTATE_PRIV) &&
 		    !search_exception_tables(regs->tpc)) {
@@ -400,11 +403,15 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
 			goto do_sigbus;
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
+	if (fault & VM_FAULT_MAJOR) {
 		current->maj_flt++;
-	else
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
+			      regs, address);
+	} else {
 		current->min_flt++;
-
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
+			      regs, address);
+	}
 	up_read(&mm->mmap_sem);
 
 	mm_rss = get_mm_rss(mm);