1 files changed, 83 insertions, 0 deletions
diff --git a/include/linux/soc/ti/knav_qmss.h b/include/linux/soc/ti/knav_qmss.h
new file mode 100644
index 000000000..175f466eb
--- /dev/null
+++ b/include/linux/soc/ti/knav_qmss.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Keystone Navigator Queue Management Sub-System header
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com
+ * Author:	Sandeep Nair <sandeep_n@ti.com>
+ *		Cyril Chemparathy <cyril@ti.com>
+ *		Santosh Shilimkar <santosh.shilimkar@ti.com>
+ */
+
+#ifndef __SOC_TI_KNAV_QMSS_H__
+#define __SOC_TI_KNAV_QMSS_H__
+
+#include <linux/err.h>
+#include <linux/time.h>
+#include <linux/atomic.h>
+#include <linux/device.h>
+#include <linux/fcntl.h>
+#include <linux/dma-mapping.h>
+
+/* queue types */
+#define KNAV_QUEUE_QPEND	((unsigned)-2) /* interruptible qpend queue */
+#define KNAV_QUEUE_ACC		((unsigned)-3) /* Accumulated queue */
+#define KNAV_QUEUE_GP		((unsigned)-4) /* General purpose queue */
+
+/* queue flags */
+#define KNAV_QUEUE_SHARED	0x0001		/* Queue can be shared */
+
+/**
+ * enum knav_queue_ctrl_cmd -	queue operations.
+ * @KNAV_QUEUE_GET_ID:		Get the ID number for an open queue
+ * @KNAV_QUEUE_FLUSH:		forcibly empty a queue if possible
+ * @KNAV_QUEUE_SET_NOTIFIER:	Set a notifier callback to a queue handle.
+ * @KNAV_QUEUE_ENABLE_NOTIFY:	Enable notifier callback for a queue handle.
+ * @KNAV_QUEUE_DISABLE_NOTIFY:	Disable notifier callback for a queue handle.
+ * @KNAV_QUEUE_GET_COUNT:	Get number of queues.
+ */
+enum knav_queue_ctrl_cmd {
+	KNAV_QUEUE_GET_ID,
+	KNAV_QUEUE_FLUSH,
+	KNAV_QUEUE_SET_NOTIFIER,
+	KNAV_QUEUE_ENABLE_NOTIFY,
+	KNAV_QUEUE_DISABLE_NOTIFY,
+	KNAV_QUEUE_GET_COUNT
+};
+
+/* Queue notifier callback prototype */
+typedef void (*knav_queue_notify_fn)(void *arg);
+
+/**
+ * struct knav_queue_notify_config:	Notifier configuration
+ * @fn:					Notifier function
+ * @fn_arg:				Notifier function arguments
+ */
+struct knav_queue_notify_config {
+	knav_queue_notify_fn fn;
+	void *fn_arg;
+};
+
+void *knav_queue_open(const char *name, unsigned id,
+					unsigned flags);
+void knav_queue_close(void *qhandle);
+int knav_queue_device_control(void *qhandle,
+				enum knav_queue_ctrl_cmd cmd,
+				unsigned long arg);
+dma_addr_t knav_queue_pop(void *qhandle, unsigned *size);
+int knav_queue_push(void *qhandle, dma_addr_t dma,
+				unsigned size, unsigned flags);
+
+void *knav_pool_create(const char *name,
+				int num_desc, int region_id);
+void knav_pool_destroy(void *ph);
+int knav_pool_count(void *ph);
+void *knav_pool_desc_get(void *ph);
+void knav_pool_desc_put(void *ph, void *desc);
+int knav_pool_desc_map(void *ph, void *desc, unsigned size,
+					dma_addr_t *dma, unsigned *dma_sz);
+void *knav_pool_desc_unmap(void *ph, dma_addr_t dma, unsigned dma_sz);
+dma_addr_t knav_pool_desc_virt_to_dma(void *ph, void *virt);
+void *knav_pool_desc_dma_to_virt(void *ph, dma_addr_t dma);
+bool knav_qmss_device_ready(void);
+
+#endif /* __SOC_TI_KNAV_QMSS_H__ */