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-rw-r--r--arch/arm/mach-tegra/irq.c15
-rw-r--r--arch/arm/mach-tegra/irq.h22
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