GIC: Add APIs to enable and disable interrupt
API documentation updated.
Change-Id: Ice7511f8df5356851001d2f7dc2a46cfe318f9ba
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
diff --git a/drivers/arm/gic/v2/gicv2_main.c b/drivers/arm/gic/v2/gicv2_main.c
index e33353a..e0058ad 100644
--- a/drivers/arm/gic/v2/gicv2_main.c
+++ b/drivers/arm/gic/v2/gicv2_main.c
@@ -288,3 +288,37 @@
return gicd_get_isactiver(driver_data->gicd_base, id);
}
+
+/*******************************************************************************
+ * This function enables the interrupt identified by id.
+ ******************************************************************************/
+void gicv2_enable_interrupt(unsigned int id)
+{
+ assert(driver_data);
+ assert(driver_data->gicd_base);
+ assert(id <= MAX_SPI_ID);
+
+ /*
+ * Ensure that any shared variable updates depending on out of band
+ * interrupt trigger are observed before enabling interrupt.
+ */
+ dsbishst();
+ gicd_set_isenabler(driver_data->gicd_base, id);
+}
+
+/*******************************************************************************
+ * This function disables the interrupt identified by id.
+ ******************************************************************************/
+void gicv2_disable_interrupt(unsigned int id)
+{
+ assert(driver_data);
+ assert(driver_data->gicd_base);
+ assert(id <= MAX_SPI_ID);
+
+ /*
+ * Disable interrupt, and ensure that any shared variable updates
+ * depending on out of band interrupt trigger are observed afterwards.
+ */
+ gicd_set_icenabler(driver_data->gicd_base, id);
+ dsbishst();
+}