From 28ee86a9b0f2e980beeb637da4f787065c74a39e Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Wed, 27 Apr 2016 11:58:19 +0200
Subject: Import DPAA driver snapshot

Imported from Freescale Linux repository

git://git.freescale.com/ppc/upstream/linux.git

commit 2774c204cd8bfc56a200ff4dcdfc9cdf5b6fc161.

Linux compatibility layer is partly from FreeBSD.
---
 linux/drivers/soc/fsl/qbman/bman-debugfs.c | 121 +++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 linux/drivers/soc/fsl/qbman/bman-debugfs.c

(limited to 'linux/drivers/soc/fsl/qbman/bman-debugfs.c')

diff --git a/linux/drivers/soc/fsl/qbman/bman-debugfs.c b/linux/drivers/soc/fsl/qbman/bman-debugfs.c
new file mode 100644
index 00000000..09f5a283
--- /dev/null
+++ b/linux/drivers/soc/fsl/qbman/bman-debugfs.c
@@ -0,0 +1,121 @@
+#include <machine/rtems-bsd-kernel-space.h>
+
+#include <rtems/bsd/local/opt_dpaa.h>
+
+/* Copyright 2010 - 2015 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *	 notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *	 notice, this list of conditions and the following disclaimer in the
+ *	 documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *	 names of its contributors may be used to endorse or promote products
+ *	 derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "bman_priv.h"
+
+static struct dentry *dfs_root; /* debugfs root directory */
+
+/* Query Buffer Pool State */
+
+static int query_bp_state_show(struct seq_file *file, void *offset)
+{
+	int ret;
+	struct bm_pool_state state;
+	int i, j;
+	u32 mask;
+
+	memset(&state, 0, sizeof(state));
+	ret = bman_query_pools(&state);
+	if (ret) {
+		seq_printf(file, "Error %d\n", ret);
+		return ret;
+	}
+
+	seq_puts(file, "bp_id  free_buffers_avail  bp_depleted\n");
+	for (i = 0; i < 2; i++) {
+		mask = 0x80000000;
+		for (j = 0; j < 32; j++) {
+			seq_printf(file,
+			 "  %-2u	   %-3s		    %-3s\n",
+			 (i * 32) + j,
+			 state.as.state.__state[i] & mask ? "no" : "yes",
+			 state.ds.state.__state[i] & mask ? "yes" : "no");
+			 mask >>= 1;
+		}
+	}
+
+	return 0;
+}
+
+static int query_bp_state_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, query_bp_state_show, NULL);
+}
+
+static const struct file_operations query_bp_state_fops = {
+	.owner		= THIS_MODULE,
+	.open		= query_bp_state_open,
+	.read		= seq_read,
+	.release	= single_release,
+};
+
+static int __init bman_debugfs_init(void)
+{
+	int ret = 0;
+	struct dentry *d;
+
+	dfs_root = debugfs_create_dir("bman", NULL);
+	if (dfs_root == NULL) {
+		pr_err("Cannot create dir\n");
+		return -ENOMEM;
+	}
+
+	d = debugfs_create_file("query_bp_state",
+		S_IRUGO,
+		dfs_root,
+		NULL,
+		&query_bp_state_fops);
+	if (d == NULL) {
+		ret = -ENOMEM;
+		pr_err("Cannot create query_bp_state\n");
+		goto _return;
+	}
+
+	return 0;
+
+_return:
+	debugfs_remove_recursive(dfs_root);
+
+	return ret;
+}
+
+static void __exit bman_debugfs_exit(void)
+{
+	debugfs_remove_recursive(dfs_root);
+}
+
+module_init(bman_debugfs_init);
+module_exit(bman_debugfs_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
-- 
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