2 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index b7886f183511..c9976e337bb9 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -45,6 +45,8 @@
 #define FIRST_LEGACY_IRQ 32
+#define SGI_MASK 0xFFFF
 static int num_ictlrs;
 static void __iomem *ictlr_reg_base[] = {
@@ -55,6 +57,19 @@ static void __iomem *ictlr_reg_base[] = {
        IO_ADDRESS(TEGRA_QUINARY_ICTLR_BASE),
 };
+bool tegra_pending_sgi(void)
+{
+        u32 pending_set;
+        void __iomem *distbase = IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE);
+        pending_set = readl_relaxed(distbase + GIC_DIST_PENDING_SET);
+        if (pending_set & SGI_MASK)
+                return true;
+        return false;
+}
 static inline void tegra_irq_write_mask(unsigned int irq, unsigned long reg)
 {
        void __iomem *base;
diff --git a/arch/arm/mach-tegra/irq.h b/arch/arm/mach-tegra/irq.h
new file mode 100644
index 000000000000..5142649bba05
--- /dev/null
+++ b/arch/arm/mach-tegra/irq.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2012, NVIDIA Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __TEGRA_IRQ_H
+#define __TEGRA_IRQ_H
+bool tegra_pending_sgi(void);
+#endif

diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c index b7886f183511..c9976e337bb9 100644 --- a/arch/arm/mach-tegra/irq.c +++ b/arch/arm/mach-tegra/irq.c
@@ -45,6 +45,8 @@
45		45
46	#define FIRST_LEGACY_IRQ 32	46	#define FIRST_LEGACY_IRQ 32
47		47
		48	#define SGI_MASK 0xFFFF
		49
48	static int num_ictlrs;	50	static int num_ictlrs;
49		51
50	static void __iomem *ictlr_reg_base[] = {	52	static void __iomem *ictlr_reg_base[] = {
@@ -55,6 +57,19 @@ static void __iomem *ictlr_reg_base[] = {
55	IO_ADDRESS(TEGRA_QUINARY_ICTLR_BASE),	57	IO_ADDRESS(TEGRA_QUINARY_ICTLR_BASE),
56	};	58	};
57		59
		60	bool tegra_pending_sgi(void)
		61	{
		62	u32 pending_set;
		63	void __iomem *distbase = IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE);
		64
		65	pending_set = readl_relaxed(distbase + GIC_DIST_PENDING_SET);
		66
		67	if (pending_set & SGI_MASK)
		68	return true;
		69
		70	return false;
		71	}
		72
58	static inline void tegra_irq_write_mask(unsigned int irq, unsigned long reg)	73	static inline void tegra_irq_write_mask(unsigned int irq, unsigned long reg)
59	{	74	{
60	void __iomem *base;	75	void __iomem *base;


diff --git a/arch/arm/mach-tegra/irq.h b/arch/arm/mach-tegra/irq.h new file mode 100644 index 000000000000..5142649bba05 --- /dev/null +++ b/arch/arm/mach-tegra/irq.h
@@ -0,0 +1,22 @@
		1	/*
		2	* Copyright (c) 2012, NVIDIA Corporation. All rights reserved.
		3	*
		4	* This program is free software; you can redistribute it and/or modify it
		5	* under the terms and conditions of the GNU General Public License,
		6	* version 2, as published by the Free Software Foundation.
		7	*
		8	* This program is distributed in the hope it will be useful, but WITHOUT
		9	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
		10	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
		11	* more details.
		12	*
		13	* You should have received a copy of the GNU General Public License
		14	* along with this program. If not, see <http://www.gnu.org/licenses/>.
		15	*/
		16
		17	#ifndef __TEGRA_IRQ_H
		18	#define __TEGRA_IRQ_H
		19
		20	bool tegra_pending_sgi(void);
		21
		22	#endif