Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/g…

…it/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] New IA64 core/thread detection patch
  [IA64] Increase max node count on SN platforms
  [IA64] Increase max node count on SN platforms
  [IA64] Increase max node count on SN platforms
  [IA64] Increase max node count on SN platforms
  [IA64] Tollhouse HP: IA64 arch changes
  [IA64] cleanup dig_irq_init
  [IA64] MCA recovery: kernel context recovery table
  IA64: Use early_parm to handle mvec_name and nomca
  [IA64] move patchlist and machvec into init section
  [IA64] add init declaration - nolwsys
  [IA64] add init declaration - gate page functions
  [IA64] add init declaration to memory initialization functions
  [IA64] add init declaration to cpu initialization functions
  [IA64] add __init declaration to mca functions
  [IA64] Ignore disabled Local SAPIC Affinity Structure in SRAT
  [IA64] sn_check_intr: use ia64_get_irr()
  [IA64] fix ia64 is_hugepage_only_range

arch/ia64/Kconfig

@@ -252,6 +252,15 @@ config NR_CPUS
 	  than 64 will cause the use of a CPU mask array, causing a small
 	  performance hit.
 
+config IA64_NR_NODES
+	int "Maximum number of NODEs (256-1024)" if (IA64_SGI_SN2 || IA64_GENERIC)
+	range 256 1024
+	depends on IA64_SGI_SN2 || IA64_GENERIC
+	default "256"
+	help
+	  This option specifies the maximum number of nodes in your SSI system.
+	  If in doubt, use the default.
+
 config HOTPLUG_CPU
 	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 	depends on SMP && EXPERIMENTAL

arch/ia64/configs/gensparse_defconfig

@@ -116,6 +116,7 @@ CONFIG_IOSAPIC=y
 CONFIG_FORCE_MAX_ZONEORDER=17
 CONFIG_SMP=y
 CONFIG_NR_CPUS=512
+CONFIG_IA64_NR_NODES=256
 CONFIG_HOTPLUG_CPU=y
 # CONFIG_SCHED_SMT is not set
 # CONFIG_PREEMPT is not set

arch/ia64/configs/sn2_defconfig

@@ -116,6 +116,7 @@ CONFIG_IA64_SGI_SN_XP=m
 CONFIG_FORCE_MAX_ZONEORDER=17
 CONFIG_SMP=y
 CONFIG_NR_CPUS=1024
+CONFIG_IA64_NR_NODES=256
 # CONFIG_HOTPLUG_CPU is not set
 CONFIG_SCHED_SMT=y
 CONFIG_PREEMPT=y

arch/ia64/defconfig

@@ -116,6 +116,7 @@ CONFIG_IOSAPIC=y
 CONFIG_FORCE_MAX_ZONEORDER=17
 CONFIG_SMP=y
 CONFIG_NR_CPUS=512
+CONFIG_IA64_NR_NODES=256
 CONFIG_HOTPLUG_CPU=y
 # CONFIG_SCHED_SMT is not set
 # CONFIG_PREEMPT is not set

arch/ia64/dig/setup.c

@@ -69,8 +69,3 @@ dig_setup (char **cmdline_p)
 	screen_info.orig_video_isVGA = 1;	/* XXX fake */
 	screen_info.orig_video_ega_bx = 3;	/* XXX fake */
 }
-
-void __init
-dig_irq_init (void)
-{
-}

arch/ia64/kernel/acpi.c

@@ -420,6 +420,26 @@ int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS];
 int __initdata nid_to_pxm_map[MAX_NUMNODES];
 static struct acpi_table_slit __initdata *slit_table;
 
+static int get_processor_proximity_domain(struct acpi_table_processor_affinity *pa)
+{
+	int pxm;
+
+	pxm = pa->proximity_domain;
+	if (ia64_platform_is("sn2"))
+		pxm += pa->reserved[0] << 8;
+	return pxm;
+}
+
+static int get_memory_proximity_domain(struct acpi_table_memory_affinity *ma)
+{
+	int pxm;
+
+	pxm = ma->proximity_domain;
+	if (ia64_platform_is("sn2"))
+		pxm += ma->reserved1[0] << 8;
+	return pxm;
+}
+
 /*
  * ACPI 2.0 SLIT (System Locality Information Table)
  * http://devresource.hp.com/devresource/Docs/TechPapers/IA64/slit.pdf
@@ -443,24 +463,31 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 void __init
 acpi_numa_processor_affinity_init(struct acpi_table_processor_affinity *pa)
 {
+	int pxm;
+
+	if (!pa->flags.enabled)
+		return;
+
+	pxm = get_processor_proximity_domain(pa);
+
 	/* record this node in proximity bitmap */
-	pxm_bit_set(pa->proximity_domain);
+	pxm_bit_set(pxm);
 
 	node_cpuid[srat_num_cpus].phys_id =
 	    (pa->apic_id << 8) | (pa->lsapic_eid);
 	/* nid should be overridden as logical node id later */
-	node_cpuid[srat_num_cpus].nid = pa->proximity_domain;
+	node_cpuid[srat_num_cpus].nid = pxm;
 	srat_num_cpus++;
 }
 
 void __init
 acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
 {
 	unsigned long paddr, size;
-	u8 pxm;
+	int pxm;
 	struct node_memblk_s *p, *q, *pend;
 
-	pxm = ma->proximity_domain;
+	pxm = get_memory_proximity_domain(ma);
 
 	/* fill node memory chunk structure */
 	paddr = ma->base_addr_hi;

arch/ia64/kernel/ivt.S

@@ -865,6 +865,7 @@ ENTRY(interrupt)
 	;;
 	SAVE_REST
 	;;
+	MCA_RECOVER_RANGE(interrupt)
 	alloc r14=ar.pfs,0,0,2,0 // must be first in an insn group
 	mov out0=cr.ivr		// pass cr.ivr as first arg
 	add out1=16,sp		// pass pointer to pt_regs as second arg

arch/ia64/kernel/machvec.c

@@ -14,7 +14,15 @@
 struct ia64_machine_vector ia64_mv;
 EXPORT_SYMBOL(ia64_mv);
 
-static struct ia64_machine_vector *
+static __initdata const char *mvec_name;
+static __init int setup_mvec(char *s)
+{
+	mvec_name = s;
+	return 0;
+}
+early_param("machvec", setup_mvec);
+
+static struct ia64_machine_vector * __init
 lookup_machvec (const char *name)
 {
 	extern struct ia64_machine_vector machvec_start[];
@@ -33,10 +41,13 @@ machvec_init (const char *name)
 {
 	struct ia64_machine_vector *mv;
 
+	if (!name)
+		name = mvec_name ? mvec_name : acpi_get_sysname();
 	mv = lookup_machvec(name);
-	if (!mv) {
-		panic("generic kernel failed to find machine vector for platform %s!", name);
-	}
+	if (!mv)
+		panic("generic kernel failed to find machine vector for"
+		      " platform %s!", name);
+
 	ia64_mv = *mv;
 	printk(KERN_INFO "booting generic kernel on platform %s\n", name);
 }

arch/ia64/kernel/mca.c

@@ -83,6 +83,7 @@
 #include <asm/irq.h>
 #include <asm/hw_irq.h>
 
+#include "mca_drv.h"
 #include "entry.h"
 
 #if defined(IA64_MCA_DEBUG_INFO)
@@ -133,7 +134,7 @@ static int cpe_poll_enabled = 1;
 
 extern void salinfo_log_wakeup(int type, u8 *buffer, u64 size, int irqsafe);
 
-static int mca_init;
+static int mca_init __initdata;
 
 
 static void inline
@@ -184,7 +185,7 @@ static ia64_state_log_t ia64_state_log[IA64_MAX_LOG_TYPES];
  * Inputs   :   info_type   (SAL_INFO_TYPE_{MCA,INIT,CMC,CPE})
  * Outputs	:	None
  */
-static void
+static void __init
 ia64_log_init(int sal_info_type)
 {
 	u64	max_size = 0;
@@ -281,6 +282,50 @@ ia64_mca_log_sal_error_record(int sal_info_type)
 		ia64_sal_clear_state_info(sal_info_type);
 }
 
+/*
+ * search_mca_table
+ *  See if the MCA surfaced in an instruction range
+ *  that has been tagged as recoverable.
+ *
+ *  Inputs
+ *	first	First address range to check
+ *	last	Last address range to check
+ *	ip	Instruction pointer, address we are looking for
+ *
+ * Return value:
+ *      1 on Success (in the table)/ 0 on Failure (not in the  table)
+ */
+int
+search_mca_table (const struct mca_table_entry *first,
+                const struct mca_table_entry *last,
+                unsigned long ip)
+{
+        const struct mca_table_entry *curr;
+        u64 curr_start, curr_end;
+
+        curr = first;
+        while (curr <= last) {
+                curr_start = (u64) &curr->start_addr + curr->start_addr;
+                curr_end = (u64) &curr->end_addr + curr->end_addr;
+
+                if ((ip >= curr_start) && (ip <= curr_end)) {
+                        return 1;
+                }
+                curr++;
+        }
+        return 0;
+}
+
+/* Given an address, look for it in the mca tables. */
+int mca_recover_range(unsigned long addr)
+{
+	extern struct mca_table_entry __start___mca_table[];
+	extern struct mca_table_entry __stop___mca_table[];
+
+	return search_mca_table(__start___mca_table, __stop___mca_table-1, addr);
+}
+EXPORT_SYMBOL_GPL(mca_recover_range);
+
 #ifdef CONFIG_ACPI
 
 int cpe_vector = -1;
@@ -355,7 +400,7 @@ ia64_mca_cpe_int_handler (int cpe_irq, void *arg, struct pt_regs *ptregs)
  *  Outputs
  *      None
  */
-static void
+static void __init
 ia64_mca_register_cpev (int cpev)
 {
 	/* Register the CPE interrupt vector with SAL */
@@ -386,7 +431,7 @@ ia64_mca_register_cpev (int cpev)
  * Outputs
  *	None
  */
-void
+void __cpuinit
 ia64_mca_cmc_vector_setup (void)
 {
 	cmcv_reg_t	cmcv;
@@ -747,31 +792,34 @@ ia64_mca_modify_original_stack(struct pt_regs *regs,
 		ia64_mca_modify_comm(previous_current);
 		goto no_mod;
 	}
-	if (r13 != sos->prev_IA64_KR_CURRENT) {
-		msg = "inconsistent previous current and r13";
-		goto no_mod;
-	}
-	if ((r12 - r13) >= KERNEL_STACK_SIZE) {
-		msg = "inconsistent r12 and r13";
-		goto no_mod;
-	}
-	if ((ar_bspstore - r13) >= KERNEL_STACK_SIZE) {
-		msg = "inconsistent ar.bspstore and r13";
-		goto no_mod;
-	}
-	va.p = old_bspstore;
-	if (va.f.reg < 5) {
-		msg = "old_bspstore is in the wrong region";
-		goto no_mod;
-	}
-	if ((ar_bsp - r13) >= KERNEL_STACK_SIZE) {
-		msg = "inconsistent ar.bsp and r13";
-		goto no_mod;
-	}
-	size += (ia64_rse_skip_regs(old_bspstore, slots) - old_bspstore) * 8;
-	if (ar_bspstore + size > r12) {
-		msg = "no room for blocked state";
-		goto no_mod;
+
+	if (!mca_recover_range(ms->pmsa_iip)) {
+		if (r13 != sos->prev_IA64_KR_CURRENT) {
+			msg = "inconsistent previous current and r13";
+			goto no_mod;
+		}
+		if ((r12 - r13) >= KERNEL_STACK_SIZE) {
+			msg = "inconsistent r12 and r13";
+			goto no_mod;
+		}
+		if ((ar_bspstore - r13) >= KERNEL_STACK_SIZE) {
+			msg = "inconsistent ar.bspstore and r13";
+			goto no_mod;
+		}
+		va.p = old_bspstore;
+		if (va.f.reg < 5) {
+			msg = "old_bspstore is in the wrong region";
+			goto no_mod;
+		}
+		if ((ar_bsp - r13) >= KERNEL_STACK_SIZE) {
+			msg = "inconsistent ar.bsp and r13";
+			goto no_mod;
+		}
+		size += (ia64_rse_skip_regs(old_bspstore, slots) - old_bspstore) * 8;
+		if (ar_bspstore + size > r12) {
+			msg = "no room for blocked state";
+			goto no_mod;
+		}
 	}
 
 	ia64_mca_modify_comm(previous_current);
@@ -1443,7 +1491,7 @@ static struct irqaction mca_cpep_irqaction = {
  * format most of the fields.
  */
 
-static void
+static void __cpuinit
 format_mca_init_stack(void *mca_data, unsigned long offset,
 		const char *type, int cpu)
 {
@@ -1467,7 +1515,7 @@ format_mca_init_stack(void *mca_data, unsigned long offset,
 
 /* Do per-CPU MCA-related initialization.  */
 
-void __devinit
+void __cpuinit
 ia64_mca_cpu_init(void *cpu_data)
 {
 	void *pal_vaddr;

arch/ia64/kernel/mca_drv.c

@@ -6,6 +6,7 @@
  * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com)
  * Copyright (C) 2005 Silicon Graphics, Inc
  * Copyright (C) 2005 Keith Owens <kaos@sgi.com>
+ * Copyright (C) 2006 Russ Anderson <rja@sgi.com>
  */
 #include <linux/config.h>
 #include <linux/types.h>
@@ -121,11 +122,12 @@ mca_page_isolate(unsigned long paddr)
  */
 
 void
-mca_handler_bh(unsigned long paddr)
+mca_handler_bh(unsigned long paddr, void *iip, unsigned long ipsr)
 {
-	printk(KERN_ERR
-		"OS_MCA: process [pid: %d](%s) encounters MCA (paddr=%lx)\n",
-		current->pid, current->comm, paddr);
+	printk(KERN_ERR "OS_MCA: process [cpu %d, pid: %d, uid: %d, "
+		"iip: %p, psr: 0x%lx,paddr: 0x%lx](%s) encounters MCA.\n",
+		raw_smp_processor_id(), current->pid, current->uid,
+		iip, ipsr, paddr, current->comm);
 
 	spin_lock(&mca_bh_lock);
 	switch (mca_page_isolate(paddr)) {
@@ -442,21 +444,26 @@ recover_from_read_error(slidx_table_t *slidx,
 	if (!peidx_bottom(peidx) || !(peidx_bottom(peidx)->valid.minstate))
 		return 0;
 	psr1 =(struct ia64_psr *)&(peidx_minstate_area(peidx)->pmsa_ipsr);
+	psr2 =(struct ia64_psr *)&(peidx_minstate_area(peidx)->pmsa_xpsr);
 
 	/*
 	 *  Check the privilege level of interrupted context.
 	 *   If it is user-mode, then terminate affected process.
 	 */
-	if (psr1->cpl != 0) {
+
+	pmsa = sos->pal_min_state;
+	if (psr1->cpl != 0 ||
+	   ((psr2->cpl != 0) && mca_recover_range(pmsa->pmsa_iip))) {
 		smei = peidx_bus_check(peidx, 0);
 		if (smei->valid.target_identifier) {
 			/*
 			 *  setup for resume to bottom half of MCA,
 			 * "mca_handler_bhhook"
 			 */
-			pmsa = sos->pal_min_state;
-			/* pass to bhhook as 1st argument (gr8) */
+			/* pass to bhhook as argument (gr8, ...) */
 			pmsa->pmsa_gr[8-1] = smei->target_identifier;
+			pmsa->pmsa_gr[9-1] = pmsa->pmsa_iip;
+			pmsa->pmsa_gr[10-1] = pmsa->pmsa_ipsr;
 			/* set interrupted return address (but no use) */
 			pmsa->pmsa_br0 = pmsa->pmsa_iip;
 			/* change resume address to bottom half */
@@ -466,6 +473,7 @@ recover_from_read_error(slidx_table_t *slidx,
 			psr2 = (struct ia64_psr *)&pmsa->pmsa_ipsr;
 			psr2->cpl = 0;
 			psr2->ri  = 0;
+			psr2->bn  = 1;
 			psr2->i  = 0;
 
 			return 1;