Merge branch 'master' into for-next

Fast-forwarded to current state of Linus' tree as there are patches to be
applied for files that didn't exist on the old branch.

1 files changed, 49 insertions, 19 deletions

diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 0dcd1c6..226c826 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -113,15 +113,17 @@ static void init_ipi(void);
  */
 static void mn10300_ipi_disable(unsigned int irq);
 static void mn10300_ipi_enable(unsigned int irq);
-static void mn10300_ipi_ack(unsigned int irq);
-static void mn10300_ipi_nop(unsigned int irq);
+static void mn10300_ipi_chip_disable(struct irq_data *d);
+static void mn10300_ipi_chip_enable(struct irq_data *d);
+static void mn10300_ipi_ack(struct irq_data *d);
+static void mn10300_ipi_nop(struct irq_data *d);
 
 static struct irq_chip mn10300_ipi_type = {
 	.name		= "cpu_ipi",
-	.disable	= mn10300_ipi_disable,
-	.enable		= mn10300_ipi_enable,
-	.ack		= mn10300_ipi_ack,
-	.eoi		= mn10300_ipi_nop
+	.irq_disable	= mn10300_ipi_chip_disable,
+	.irq_enable	= mn10300_ipi_chip_enable,
+	.irq_ack	= mn10300_ipi_ack,
+	.irq_eoi	= mn10300_ipi_nop
 };
 
 static irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id);
@@ -154,15 +156,15 @@ static void init_ipi(void)
 	u16 tmp16;
 
 	/* set up the reschedule IPI */
-	set_irq_chip_and_handler(RESCHEDULE_IPI,
-				 &mn10300_ipi_type, handle_percpu_irq);
+	irq_set_chip_and_handler(RESCHEDULE_IPI, &mn10300_ipi_type,
+				 handle_percpu_irq);
 	setup_irq(RESCHEDULE_IPI, &reschedule_ipi);
 	set_intr_level(RESCHEDULE_IPI, RESCHEDULE_GxICR_LV);
 	mn10300_ipi_enable(RESCHEDULE_IPI);
 
 	/* set up the call function IPI */
-	set_irq_chip_and_handler(CALL_FUNC_SINGLE_IPI,
-				 &mn10300_ipi_type, handle_percpu_irq);
+	irq_set_chip_and_handler(CALL_FUNC_SINGLE_IPI, &mn10300_ipi_type,
+				 handle_percpu_irq);
 	setup_irq(CALL_FUNC_SINGLE_IPI, &call_function_ipi);
 	set_intr_level(CALL_FUNC_SINGLE_IPI, CALL_FUNCTION_GxICR_LV);
 	mn10300_ipi_enable(CALL_FUNC_SINGLE_IPI);
@@ -170,8 +172,8 @@ static void init_ipi(void)
 	/* set up the local timer IPI */
 #if !defined(CONFIG_GENERIC_CLOCKEVENTS) || \
     defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
-	set_irq_chip_and_handler(LOCAL_TIMER_IPI,
-				 &mn10300_ipi_type, handle_percpu_irq);
+	irq_set_chip_and_handler(LOCAL_TIMER_IPI, &mn10300_ipi_type,
+				 handle_percpu_irq);
 	setup_irq(LOCAL_TIMER_IPI, &local_timer_ipi);
 	set_intr_level(LOCAL_TIMER_IPI, LOCAL_TIMER_GxICR_LV);
 	mn10300_ipi_enable(LOCAL_TIMER_IPI);
@@ -236,6 +238,11 @@ static void mn10300_ipi_enable(unsigned int irq)
 	arch_local_irq_restore(flags);
 }
 
+static void mn10300_ipi_chip_enable(struct irq_data *d)
+{
+	mn10300_ipi_enable(d->irq);
+}
+
 /**
  * mn10300_ipi_disable - Disable an IPI
  * @irq: The IPI to be disabled.
@@ -254,6 +261,12 @@ static void mn10300_ipi_disable(unsigned int irq)
 	arch_local_irq_restore(flags);
 }
 
+static void mn10300_ipi_chip_disable(struct irq_data *d)
+{
+	mn10300_ipi_disable(d->irq);
+}
+
+
 /**
  * mn10300_ipi_ack - Acknowledge an IPI interrupt in the PIC
  * @irq: The IPI to be acknowledged.
@@ -261,8 +274,9 @@ static void mn10300_ipi_disable(unsigned int irq)
  * Clear the interrupt detection flag for the IPI on the appropriate interrupt
  * channel in the PIC.
  */
-static void mn10300_ipi_ack(unsigned int irq)
+static void mn10300_ipi_ack(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
 	unsigned long flags;
 	u16 tmp;
 
@@ -276,7 +290,7 @@ static void mn10300_ipi_ack(unsigned int irq)
  * mn10300_ipi_nop - Dummy IPI action
  * @irq: The IPI to be acted upon.
  */
-static void mn10300_ipi_nop(unsigned int irq)
+static void mn10300_ipi_nop(struct irq_data *d)
 {
 }
 
@@ -426,6 +440,22 @@ int smp_nmi_call_function(smp_call_func_t func, void *info, int wait)
 }
 
 /**
+ * smp_jump_to_debugger - Make other CPUs enter the debugger by sending an IPI
+ *
+ * Send a non-maskable request to all other CPUs in the system, instructing
+ * them to jump into the debugger.  The caller is responsible for checking that
+ * the other CPUs responded to the instruction.
+ *
+ * The caller should make sure that this CPU's debugger IPI is disabled.
+ */
+void smp_jump_to_debugger(void)
+{
+	if (num_online_cpus() > 1)
+		/* Send a message to all other CPUs */
+		send_IPI_allbutself(DEBUGGER_NMI_IPI);
+}
+
+/**
  * stop_this_cpu - Callback to stop a CPU.
  * @unused: Callback context (ignored).
  */
@@ -589,7 +619,7 @@ static void __init smp_cpu_init(void)
 /**
  * smp_prepare_cpu_init - Initialise CPU in startup_secondary
  *
- * Set interrupt level 0-6 setting and init ICR of gdbstub.
+ * Set interrupt level 0-6 setting and init ICR of the kernel debugger.
  */
 void smp_prepare_cpu_init(void)
 {
@@ -608,15 +638,15 @@ void smp_prepare_cpu_init(void)
 	for (loop = 0; loop < GxICR_NUM_IRQS; loop++)
 		GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT;
 
-#ifdef CONFIG_GDBSTUB
-	/* initialise GDB-stub */
+#ifdef CONFIG_KERNEL_DEBUGGER
+	/* initialise the kernel debugger interrupt */
 	do {
 		unsigned long flags;
 		u16 tmp16;
 
 		flags = arch_local_cli_save();
-		GxICR(GDB_NMI_IPI) = GxICR_NMI | GxICR_ENABLE | GxICR_DETECT;
-		tmp16 = GxICR(GDB_NMI_IPI);
+		GxICR(DEBUGGER_NMI_IPI) = GxICR_NMI | GxICR_ENABLE | GxICR_DETECT;
+		tmp16 = GxICR(DEBUGGER_NMI_IPI);
 		arch_local_irq_restore(flags);
 	} while (0);
 #endif