Merge intel.com:/data/home/aegl/BK/Linus

into intel.com:/data/home/aegl/BK/linux-ia64-release-2.6.10

arch/ia64/kernel/iosapic.c

@@ -522,6 +522,11 @@ get_target_cpu (unsigned int gsi, int vector)
 
 		cpu_mask = node_to_cpumask(iosapic_lists[iosapic_index].node);
 
+		for_each_cpu_mask(numa_cpu, cpu_mask) {
+			if (!cpu_online(numa_cpu))
+				cpu_clear(numa_cpu, cpu_mask);
+		}
+
 		num_cpus = cpus_weight(cpu_mask);
 
 		if (!num_cpus)

arch/ia64/kernel/irq.c

@@ -215,11 +215,6 @@ int show_interrupts(struct seq_file *p, void *v)
 skip:
 		spin_unlock_irqrestore(&idesc->lock, flags);
 	} else if (i == NR_IRQS) {
-		seq_puts(p, "NMI: ");
-		for (j = 0; j < NR_CPUS; j++)
-			if (cpu_online(j))
-				seq_printf(p, "%10u ", nmi_count(j));
-		seq_putc(p, '\n');
 #ifdef CONFIG_X86_LOCAL_APIC
 		seq_puts(p, "LOC: ");
 		for (j = 0; j < NR_CPUS; j++)

arch/ia64/kernel/perfmon.c

@@ -3057,7 +3057,7 @@ pfm_write_pmcs(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 #endif
 		}
 
-		DPRINT(("pmc[%u]=0x%lx ld=%d apmu=%d flags=0x%lx all_pmcs=0x%lx used_pmds=0x%lx eventid=%ld smpl_pmds=0x%lx reset_pmds=0x%lx reloads_pmcs=0x%lx used_monitors=0x%lx ovfl_regs=0x%lx\n",
+		DPRINT(("pmc[%u]=0x%lx ld=%d apmu=%d flags=0x%x all_pmcs=0x%lx used_pmds=0x%lx eventid=%ld smpl_pmds=0x%lx reset_pmds=0x%lx reloads_pmcs=0x%lx used_monitors=0x%lx ovfl_regs=0x%lx\n",
 			  cnum,
 			  value,
 			  is_loaded,
@@ -5057,6 +5057,18 @@ pfm_handle_work(void)
 
 	UNPROTECT_CTX(ctx, flags);
 
+	 /*
+	  * pfm_handle_work() is currently called with interrupts disabled.
+	  * The down_interruptible call may sleep, therefore we
+	  * must re-enable interrupts to avoid deadlocks. It is
+	  * safe to do so because this function is called ONLY
+	  * when returning to user level (PUStk=1), in which case
+	  * there is no risk of kernel stack overflow due to deep
+	  * interrupt nesting.
+	  */
+	BUG_ON(flags & IA64_PSR_I);
+	local_irq_enable();
+
 	DPRINT(("before block sleeping\n"));
 
 	/*
@@ -5067,6 +5079,12 @@ pfm_handle_work(void)
 
 	DPRINT(("after block sleeping ret=%d\n", ret));
 
+	/*
+	 * disable interrupts to restore state we had upon entering
+	 * this function
+	 */
+	local_irq_disable();
+
 	PROTECT_CTX(ctx, flags);
 
 	/*

include/asm-ia64/hardirq.h

@@ -20,14 +20,7 @@
 #define __ARCH_IRQ_STAT	1
 
 #define softirq_pending(cpu)		(cpu_data(cpu)->softirq_pending)
-#define syscall_count(cpu)		/* unused on IA-64 */
-#define ksoftirqd_task(cpu)		(cpu_data(cpu)->ksoftirqd)
-#define nmi_count(cpu)			0
-
 #define local_softirq_pending()		(local_cpu_data->softirq_pending)
-#define local_syscall_count()		/* unused on IA-64 */
-#define local_ksoftirqd_task()		(local_cpu_data->ksoftirqd)
-#define local_nmi_count()		0
 
 #define HARDIRQ_BITS	14
 

include/asm-ia64/pal.h

@@ -1531,7 +1531,7 @@ static inline s64
 ia64_pal_tr_read (u64 reg_num, u64 tr_type, u64 *tr_buffer, pal_tr_valid_u_t *tr_valid)
 {
 	struct ia64_pal_retval iprv;
-	PAL_CALL_PHYS_STK(iprv, PAL_VM_TR_READ, reg_num, tr_type,(u64)__pa(tr_buffer));
+	PAL_CALL_PHYS_STK(iprv, PAL_VM_TR_READ, reg_num, tr_type,(u64)ia64_tpa(tr_buffer));
 	if (tr_valid)
 		tr_valid->piv_val = iprv.v0;
 	return iprv.status;