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

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Update defconfig.
  [SPARC64]: Don't double-export synchronize_irq.
  [SPARC64]: Move over to GENERIC_HARDIRQS.
  [SPARC64]: Virtualize IRQ numbers.
  [SPARC64]: Kill ino_bucket->pil
  [SPARC]: Kill __irq_itoa().
  [SPARC64]: bp->pil can never be zero
  [SPARC64]: Send all device interrupts via one PIL.
  [SPARC]: Fix iommu_flush_iotlb end address
  [SPARC]: Mark smp init functions as cpuinit
  [SPARC]: Add missing rw can_lock macros
  [SPARC]: Setup cpu_possible_map
  [SPARC]: Add topology_init()

arch/sparc/kernel/pcic.c

@@ -896,13 +896,6 @@ static inline unsigned long get_irqmask(int irq_nr)
 	return 1 << irq_nr;
 }
 
-static inline char *pcic_irq_itoa(unsigned int irq)
-{
-	static char buff[16];
-	sprintf(buff, "%d", irq);
-	return buff;
-}
-
 static void pcic_disable_irq(unsigned int irq_nr)
 {
 	unsigned long mask, flags;
@@ -955,7 +948,6 @@ void __init sun4m_pci_init_IRQ(void)
 	BTFIXUPSET_CALL(clear_clock_irq, pcic_clear_clock_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(clear_profile_irq, pcic_clear_profile_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(load_profile_irq, pcic_load_profile_irq, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(__irq_itoa, pcic_irq_itoa, BTFIXUPCALL_NORM);
 }
 
 int pcibios_assign_resource(struct pci_dev *pdev, int resource)

arch/sparc/kernel/setup.c

@@ -31,6 +31,7 @@
 #include <linux/console.h>
 #include <linux/spinlock.h>
 #include <linux/root_dev.h>
+#include <linux/cpu.h>
 
 #include <asm/system.h>
 #include <asm/io.h>
@@ -348,6 +349,8 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.context = (unsigned long) NO_CONTEXT;
 	init_task.thread.kregs = &fake_swapper_regs;
 
+	smp_setup_cpu_possible_map();
+
 	paging_init();
 }
 
@@ -389,6 +392,8 @@ console_initcall(set_preferred_console);
 extern char *sparc_cpu_type;
 extern char *sparc_fpu_type;
 
+static int ncpus_probed;
+
 static int show_cpuinfo(struct seq_file *m, void *__unused)
 {
 	seq_printf(m,
@@ -411,7 +416,7 @@ static int show_cpuinfo(struct seq_file *m, void *__unused)
 		   romvec->pv_printrev >> 16,
 		   romvec->pv_printrev & 0xffff,
 		   &cputypval,
-		   num_possible_cpus(),
+		   ncpus_probed,
 		   num_online_cpus()
 #ifndef CONFIG_SMP
 		   , cpu_data(0).udelay_val/(500000/HZ),
@@ -471,3 +476,30 @@ void sun_do_break(void)
 
 int serial_console = -1;
 int stop_a_enabled = 1;
+
+static int __init topology_init(void)
+{
+	int i, ncpus, err;
+
+	/* Count the number of physically present processors in
+	 * the machine, even on uniprocessor, so that /proc/cpuinfo
+	 * output is consistent with 2.4.x
+	 */
+	ncpus = 0;
+	while (!cpu_find_by_instance(ncpus, NULL, NULL))
+		ncpus++;
+	ncpus_probed = ncpus;
+
+	err = 0;
+	for_each_online_cpu(i) {
+		struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL);
+		if (!p)
+			err = -ENOMEM;
+		else
+			register_cpu(p, i, NULL);
+	}
+
+	return err;
+}
+
+subsys_initcall(topology_init);

arch/sparc/kernel/smp.c

@@ -58,7 +58,7 @@ cpumask_t smp_commenced_mask = CPU_MASK_NONE;
 /* Used to make bitops atomic */
 unsigned char bitops_spinlock = 0;
 
-void __init smp_store_cpu_info(int id)
+void __cpuinit smp_store_cpu_info(int id)
 {
 	int cpu_node;
 
@@ -267,30 +267,44 @@ int setup_profiling_timer(unsigned int multiplier)
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
 	extern void smp4m_boot_cpus(void);
-	int i, cpuid, ncpus, extra;
+	int i, cpuid, extra;
 
 	BUG_ON(sparc_cpu_model != sun4m);
 	printk("Entering SMP Mode...\n");
 
-	ncpus = 1;
 	extra = 0;
 	for (i = 0; !cpu_find_by_instance(i, NULL, &cpuid); i++) {
-		if (cpuid == boot_cpu_id)
-			continue;
-		if (cpuid < NR_CPUS && ncpus++ < max_cpus)
-			cpu_set(cpuid, phys_cpu_present_map);
-		else
+		if (cpuid >= NR_CPUS)
 			extra++;
 	}
-	if (max_cpus >= NR_CPUS && extra)
+	/* i = number of cpus */
+	if (extra && max_cpus > i - extra)
 		printk("Warning: NR_CPUS is too low to start all cpus\n");
 
 	smp_store_cpu_info(boot_cpu_id);
 
 	smp4m_boot_cpus();
 }
 
-void __devinit smp_prepare_boot_cpu(void)
+/* Set this up early so that things like the scheduler can init
+ * properly.  We use the same cpu mask for both the present and
+ * possible cpu map.
+ */
+void __init smp_setup_cpu_possible_map(void)
+{
+	int instance, mid;
+
+	instance = 0;
+	while (!cpu_find_by_instance(instance, NULL, &mid)) {
+		if (mid < NR_CPUS) {
+			cpu_set(mid, phys_cpu_present_map);
+			cpu_set(mid, cpu_present_map);
+		}
+		instance++;
+	}
+}
+
+void __init smp_prepare_boot_cpu(void)
 {
 	int cpuid = hard_smp_processor_id();
 
@@ -306,7 +320,7 @@ void __devinit smp_prepare_boot_cpu(void)
 	cpu_set(cpuid, phys_cpu_present_map);
 }
 
-int __devinit __cpu_up(unsigned int cpu)
+int __cpuinit __cpu_up(unsigned int cpu)
 {
 	extern int smp4m_boot_one_cpu(int);
 	int ret;

arch/sparc/kernel/sparc_ksyms.c

@@ -163,7 +163,6 @@ EXPORT_SYMBOL(BTFIXUP_CALL(__hard_smp_processor_id));
 #endif
 EXPORT_SYMBOL(BTFIXUP_CALL(enable_irq));
 EXPORT_SYMBOL(BTFIXUP_CALL(disable_irq));
-EXPORT_SYMBOL(BTFIXUP_CALL(__irq_itoa));
 EXPORT_SYMBOL(BTFIXUP_CALL(mmu_unlockarea));
 EXPORT_SYMBOL(BTFIXUP_CALL(mmu_lockarea));
 EXPORT_SYMBOL(BTFIXUP_CALL(mmu_get_scsi_sgl));

arch/sparc/kernel/sun4c_irq.c

@@ -198,8 +198,6 @@ static void __init sun4c_init_timers(irqreturn_t (*counter_fn)(int, void *, stru
 static void sun4c_nop(void) {}
 #endif
 
-extern char *sun4m_irq_itoa(unsigned int irq);
-
 void __init sun4c_init_IRQ(void)
 {
 	struct linux_prom_registers int_regs[2];
@@ -238,7 +236,6 @@ void __init sun4c_init_IRQ(void)
 	BTFIXUPSET_CALL(clear_clock_irq, sun4c_clear_clock_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(clear_profile_irq, sun4c_clear_profile_irq, BTFIXUPCALL_NOP);
 	BTFIXUPSET_CALL(load_profile_irq, sun4c_load_profile_irq, BTFIXUPCALL_NOP);
-	BTFIXUPSET_CALL(__irq_itoa, sun4m_irq_itoa, BTFIXUPCALL_NORM);
 	sparc_init_timers = sun4c_init_timers;
 #ifdef CONFIG_SMP
 	BTFIXUPSET_CALL(set_cpu_int, sun4c_nop, BTFIXUPCALL_NOP);

arch/sparc/kernel/sun4d_irq.c

@@ -560,17 +560,6 @@ void __init sun4d_init_sbi_irq(void)
 	}
 }
 
-static char *sun4d_irq_itoa(unsigned int irq)
-{
-	static char buff[16];
-
-	if (irq < (1 << 5))
-		sprintf(buff, "%d", irq);
-	else
-		sprintf(buff, "%d,%x", sbus_to_pil[(irq >> 2) & 7], irq);
-	return buff;
-}
-
 void __init sun4d_init_IRQ(void)
 {
 	local_irq_disable();
@@ -581,7 +570,6 @@ void __init sun4d_init_IRQ(void)
 	BTFIXUPSET_CALL(clear_clock_irq, sun4d_clear_clock_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(clear_profile_irq, sun4d_clear_profile_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(load_profile_irq, sun4d_load_profile_irq, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(__irq_itoa, sun4d_irq_itoa, BTFIXUPCALL_NORM);
 	sparc_init_timers = sun4d_init_timers;
 #ifdef CONFIG_SMP
 	BTFIXUPSET_CALL(set_cpu_int, sun4d_set_cpu_int, BTFIXUPCALL_NORM);

arch/sparc/kernel/sun4m_irq.c

@@ -229,13 +229,6 @@ static void sun4m_load_profile_irq(int cpu, unsigned int limit)
 	sun4m_timers->cpu_timers[cpu].l14_timer_limit = limit;
 }
 
-char *sun4m_irq_itoa(unsigned int irq)
-{
-	static char buff[16];
-	sprintf(buff, "%d", irq);
-	return buff;
-}
-
 static void __init sun4m_init_timers(irqreturn_t (*counter_fn)(int, void *, struct pt_regs *))
 {
 	int reg_count, irq, cpu;
@@ -388,7 +381,6 @@ void __init sun4m_init_IRQ(void)
 	BTFIXUPSET_CALL(clear_clock_irq, sun4m_clear_clock_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(clear_profile_irq, sun4m_clear_profile_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(load_profile_irq, sun4m_load_profile_irq, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(__irq_itoa, sun4m_irq_itoa, BTFIXUPCALL_NORM);
 	sparc_init_timers = sun4m_init_timers;
 #ifdef CONFIG_SMP
 	BTFIXUPSET_CALL(set_cpu_int, sun4m_send_ipi, BTFIXUPCALL_NORM);

arch/sparc/kernel/sun4m_smp.c

@@ -66,7 +66,7 @@ static inline unsigned long swap(volatile unsigned long *ptr, unsigned long val)
 static void smp_setup_percpu_timer(void);
 extern void cpu_probe(void);
 
-void __init smp4m_callin(void)
+void __cpuinit smp4m_callin(void)
 {
 	int cpuid = hard_smp_processor_id();
 
@@ -112,13 +112,8 @@ void __init smp4m_callin(void)
 	local_irq_enable();
 
 	cpu_set(cpuid, cpu_online_map);
-	/* last one in gets all the interrupts (for testing) */
-	set_irq_udt(boot_cpu_id);
 }
 
-extern void init_IRQ(void);
-extern void cpu_panic(void);
-
 /*
  *	Cycle through the processors asking the PROM to start each one.
  */
@@ -134,7 +129,7 @@ void __init smp4m_boot_cpus(void)
 	local_flush_cache_all();
 }
 
-int smp4m_boot_one_cpu(int i)
+int __cpuinit smp4m_boot_one_cpu(int i)
 {
 	extern unsigned long sun4m_cpu_startup;
 	unsigned long *entry = &sun4m_cpu_startup;

arch/sparc/mm/iommu.c

@@ -144,8 +144,9 @@ static void iommu_flush_iotlb(iopte_t *iopte, unsigned int niopte)
 	unsigned long start;
 	unsigned long end;
 
-	start = (unsigned long)iopte & PAGE_MASK;
+	start = (unsigned long)iopte;
 	end = PAGE_ALIGN(start + niopte*sizeof(iopte_t));
+	start &= PAGE_MASK;
 	if (viking_mxcc_present) {
 		while(start < end) {
 			viking_mxcc_flush_page(start);

arch/sparc64/Kconfig

@@ -87,6 +87,10 @@ config SYSVIPC_COMPAT
 	depends on COMPAT && SYSVIPC
 	default y
 
+config GENERIC_HARDIRQS
+	bool
+	default y
+
 menu "General machine setup"
 
 config SMP

arch/sparc64/defconfig

@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.17-rc3
-# Fri May 12 12:43:49 2006
+# Linux kernel version: 2.6.17
+# Tue Jun 20 01:26:43 2006
 #
 CONFIG_SPARC=y
 CONFIG_SPARC64=y
@@ -87,6 +87,7 @@ CONFIG_DEFAULT_AS=y
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="anticipatory"
 CONFIG_SYSVIPC_COMPAT=y
+CONFIG_GENERIC_HARDIRQS=y
 
 #
 # General machine setup
@@ -183,6 +184,8 @@ CONFIG_INET_ESP=y
 CONFIG_INET_IPCOMP=y
 CONFIG_INET_XFRM_TUNNEL=y
 CONFIG_INET_TUNNEL=y
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
 CONFIG_INET_DIAG=y
 CONFIG_INET_TCP_DIAG=y
 CONFIG_TCP_CONG_ADVANCED=y
@@ -198,6 +201,9 @@ CONFIG_TCP_CONG_HSTCP=m
 CONFIG_TCP_CONG_HYBLA=m
 CONFIG_TCP_CONG_VEGAS=m
 CONFIG_TCP_CONG_SCALABLE=m
+CONFIG_TCP_CONG_LP=m
+CONFIG_TCP_CONG_VENO=m
+CONFIG_TCP_CONG_COMPOUND=m
 CONFIG_IPV6=m
 CONFIG_IPV6_PRIVACY=y
 CONFIG_IPV6_ROUTER_PREF=y
@@ -207,7 +213,10 @@ CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
 CONFIG_INET6_XFRM_TUNNEL=m
 CONFIG_INET6_TUNNEL=m
+CONFIG_INET6_XFRM_MODE_TRANSPORT=m
+CONFIG_INET6_XFRM_MODE_TUNNEL=m
 CONFIG_IPV6_TUNNEL=m
+# CONFIG_NETWORK_SECMARK is not set
 # CONFIG_NETFILTER is not set
 
 #
@@ -260,6 +269,7 @@ CONFIG_VLAN_8021Q=m
 # Network testing
 #
 CONFIG_NET_PKTGEN=m
+CONFIG_NET_TCPPROBE=m
 # CONFIG_HAMRADIO is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
@@ -562,6 +572,7 @@ CONFIG_BNX2=m
 # CONFIG_CHELSIO_T1 is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
+# CONFIG_MYRI10GE is not set
 
 #
 # Token Ring devices
@@ -811,6 +822,7 @@ CONFIG_HWMON=y
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
+CONFIG_VIDEO_V4L2=y
 
 #
 # Digital Video Broadcasting Devices
@@ -1134,6 +1146,19 @@ CONFIG_USB_HIDDEV=y
 #
 # CONFIG_RTC_CLASS is not set
 
+#
+# DMA Engine support
+#
+# CONFIG_DMA_ENGINE is not set
+
+#
+# DMA Clients
+#
+
+#
+# DMA Devices
+#
+
 #
 # Misc Linux/SPARC drivers
 #

arch/sparc64/kernel/devices.c

@@ -157,7 +157,7 @@ unsigned int sun4v_vdev_device_interrupt(unsigned int dev_node)
 		return 0;
 	}
 
-	return sun4v_build_irq(sun4v_vdev_devhandle, irq, 5, 0);
+	return sun4v_build_irq(sun4v_vdev_devhandle, irq);
 }
 
 static const char *cpu_mid_prop(void)