---

yaml --- r: 114614 b: refs/heads/master c: d13f720 h: refs/heads/master v: v3
git-mirror · Oct 13, 2008 · edc4c2f · edc4c2f
1 parent 68c4bc5
commit edc4c2f
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Showing 4 changed files with 49 additions and 58 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 78b5b626fa9048337530cc3ba4ceb9e4ee96a386
+refs/heads/master: d13f7208b211dd3613bdb04e2647081a5160d68f
diff --git a/trunk/arch/powerpc/platforms/pseries/smp.c b/trunk/arch/powerpc/platforms/pseries/smp.c
@@ -37,7 +37,6 @@
 #include <asm/paca.h>
 #include <asm/time.h>
 #include <asm/machdep.h>
-#include "xics.h"
 #include <asm/cputable.h>
 #include <asm/firmware.h>
 #include <asm/system.h>
@@ -49,6 +48,7 @@
 
 #include "plpar_wrappers.h"
 #include "pseries.h"
+#include "xics.h"
 
 
 /*
@@ -105,36 +105,6 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
 }
 
 #ifdef CONFIG_XICS
-static inline void smp_xics_do_message(int cpu, int msg)
-{
-	set_bit(msg, &xics_ipi_message[cpu].value);
-	mb();
-	xics_cause_IPI(cpu);
-}
-
-static void smp_xics_message_pass(int target, int msg)
-{
-	unsigned int i;
-
-	if (target < NR_CPUS) {
-		smp_xics_do_message(target, msg);
-	} else {
-		for_each_online_cpu(i) {
-			if (target == MSG_ALL_BUT_SELF
-			    && i == smp_processor_id())
-				continue;
-			smp_xics_do_message(i, msg);
-		}
-	}
-}
-
-static int __init smp_xics_probe(void)
-{
-	xics_request_IPIs();
-
-	return cpus_weight(cpu_possible_map);
-}
-
 static void __devinit smp_xics_setup_cpu(int cpu)
 {
 	if (cpu != boot_cpuid)

diff --git a/trunk/arch/powerpc/platforms/pseries/xics.c b/trunk/arch/powerpc/platforms/pseries/xics.c
@@ -71,11 +71,6 @@ static unsigned int interrupt_server_size = 8;
 
 static struct irq_host *xics_host;
 
-/*
- * XICS only has a single IPI, so encode the messages per CPU
- */
-struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned;
-
 /* RTAS service tokens */
 static int ibm_get_xive;
 static int ibm_set_xive;
@@ -201,6 +196,15 @@ static void xics_update_irq_servers(void)
 }
 
 #ifdef CONFIG_SMP
+/*
+ * XICS only has a single IPI, so encode the messages per CPU
+ */
+struct xics_ipi_struct {
+        unsigned long value;
+	} ____cacheline_aligned;
+
+static struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned;
+
 static int get_irq_server(unsigned int virq, unsigned int strict_check)
 {
 	int server;
@@ -387,7 +391,6 @@ static unsigned int xics_get_irq_lpar(void)
 }
 
 #ifdef CONFIG_SMP
-
 static irqreturn_t xics_ipi_dispatch(int cpu)
 {
 	WARN_ON(cpu_is_offline(cpu));
@@ -419,6 +422,33 @@ static irqreturn_t xics_ipi_dispatch(int cpu)
 	return IRQ_HANDLED;
 }
 
+static inline void smp_xics_do_message(int cpu, int msg)
+{
+	set_bit(msg, &xics_ipi_message[cpu].value);
+	mb();
+	if (firmware_has_feature(FW_FEATURE_LPAR))
+		lpar_qirr_info(cpu, IPI_PRIORITY);
+	else
+		direct_qirr_info(cpu, IPI_PRIORITY);
+}
+
+void smp_xics_message_pass(int target, int msg)
+{
+	unsigned int i;
+
+	if (target < NR_CPUS) {
+		smp_xics_do_message(target, msg);
+	} else {
+		for_each_online_cpu(i) {
+			if (target == MSG_ALL_BUT_SELF
+			    && i == smp_processor_id())
+				continue;
+			smp_xics_do_message(i, msg);
+		}
+	}
+}
+
+
 static irqreturn_t xics_ipi_action_direct(int irq, void *dev_id)
 {
 	int cpu = smp_processor_id();
@@ -436,15 +466,6 @@ static irqreturn_t xics_ipi_action_lpar(int irq, void *dev_id)
 
 	return xics_ipi_dispatch(cpu);
 }
-
-void xics_cause_IPI(int cpu)
-{
-	if (firmware_has_feature(FW_FEATURE_LPAR))
-		lpar_qirr_info(cpu, IPI_PRIORITY);
-	else
-		direct_qirr_info(cpu, IPI_PRIORITY);
-}
-
 #endif /* CONFIG_SMP */
 
 static void xics_set_cpu_priority(unsigned char cppr)
@@ -697,7 +718,7 @@ void __init xics_init_IRQ(void)
 
 
 #ifdef CONFIG_SMP
-void xics_request_IPIs(void)
+static void xics_request_ipi(void)
 {
 	unsigned int ipi;
 	int rc;
@@ -718,6 +739,14 @@ void xics_request_IPIs(void)
 				"IPI", NULL);
 	BUG_ON(rc);
 }
+
+int __init smp_xics_probe(void)
+{
+	xics_request_ipi();
+
+	return cpus_weight(cpu_possible_map);
+}
+
 #endif /* CONFIG_SMP */
 
 void xics_teardown_cpu(void)

diff --git a/trunk/arch/powerpc/platforms/pseries/xics.h b/trunk/arch/powerpc/platforms/pseries/xics.h
@@ -12,20 +12,12 @@
 #ifndef _POWERPC_KERNEL_XICS_H
 #define _POWERPC_KERNEL_XICS_H
 
-#include <linux/cache.h>
-
 extern void xics_init_IRQ(void);
 extern void xics_setup_cpu(void);
 extern void xics_teardown_cpu(void);
 extern void xics_kexec_teardown_cpu(int secondary);
-extern void xics_cause_IPI(int cpu);
-extern  void xics_request_IPIs(void);
 extern void xics_migrate_irqs_away(void);
-
-struct xics_ipi_struct {
-	volatile unsigned long value;
-} ____cacheline_aligned;
-
-extern struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned;
+extern int smp_xics_probe(void);
+extern void smp_xics_message_pass(int target, int msg);
 
 #endif /* _POWERPC_KERNEL_XICS_H */