ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/host1x/intr.h b/marvell/linux/drivers/gpu/host1x/intr.h
new file mode 100644
index 0000000..aac3819
--- /dev/null
+++ b/marvell/linux/drivers/gpu/host1x/intr.h
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Tegra host1x Interrupt Management
+ *
+ * Copyright (c) 2010-2013, NVIDIA Corporation.
+ */
+
+#ifndef __HOST1X_INTR_H
+#define __HOST1X_INTR_H
+
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+
+struct host1x_syncpt;
+struct host1x;
+
+enum host1x_intr_action {
+ /*
+ * Perform cleanup after a submit has completed.
+ * 'data' points to a channel
+ */
+ HOST1X_INTR_ACTION_SUBMIT_COMPLETE = 0,
+
+ /*
+ * Wake up a task.
+ * 'data' points to a wait_queue_head_t
+ */
+ HOST1X_INTR_ACTION_WAKEUP,
+
+ /*
+ * Wake up a interruptible task.
+ * 'data' points to a wait_queue_head_t
+ */
+ HOST1X_INTR_ACTION_WAKEUP_INTERRUPTIBLE,
+
+ HOST1X_INTR_ACTION_COUNT
+};
+
+struct host1x_syncpt_intr {
+ spinlock_t lock;
+ struct list_head wait_head;
+ char thresh_irq_name[12];
+ struct work_struct work;
+};
+
+struct host1x_waitlist {
+ struct list_head list;
+ struct kref refcount;
+ u32 thresh;
+ enum host1x_intr_action action;
+ atomic_t state;
+ void *data;
+ int count;
+};
+
+/*
+ * Schedule an action to be taken when a sync point reaches the given threshold.
+ *
+ * @id the sync point
+ * @thresh the threshold
+ * @action the action to take
+ * @data a pointer to extra data depending on action, see above
+ * @waiter waiter structure - assumes ownership
+ * @ref must be passed if cancellation is possible, else NULL
+ *
+ * This is a non-blocking api.
+ */
+int host1x_intr_add_action(struct host1x *host, struct host1x_syncpt *syncpt,
+ u32 thresh, enum host1x_intr_action action,
+ void *data, struct host1x_waitlist *waiter,
+ void **ref);
+
+/*
+ * Unreference an action submitted to host1x_intr_add_action().
+ * You must call this if you passed non-NULL as ref.
+ * @ref the ref returned from host1x_intr_add_action()
+ */
+void host1x_intr_put_ref(struct host1x *host, unsigned int id, void *ref);
+
+/* Initialize host1x sync point interrupt */
+int host1x_intr_init(struct host1x *host, unsigned int irq_sync);
+
+/* Deinitialize host1x sync point interrupt */
+void host1x_intr_deinit(struct host1x *host);
+
+/* Enable host1x sync point interrupt */
+void host1x_intr_start(struct host1x *host);
+
+/* Disable host1x sync point interrupt */
+void host1x_intr_stop(struct host1x *host);
+
+irqreturn_t host1x_syncpt_thresh_fn(void *dev_id);
+#endif