Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 148 insertions, 0 deletions

diff --git a/kernel/arch/powerpc/sysdev/fsl_rio.h b/kernel/arch/powerpc/sysdev/fsl_rio.h
new file mode 100644
index 000000000..d53407a34
--- /dev/null
+++ b/kernel/arch/powerpc/sysdev/fsl_rio.h
@@ -0,0 +1,148 @@
+/*
+ * Freescale MPC85xx/MPC86xx RapidIO support
+ *
+ * Copyright 2009 Sysgo AG
+ * Thomas Moll <thomas.moll@sysgo.com>
+ * - fixed maintenance access routines, check for aligned access
+ *
+ * Copyright 2009 Integrated Device Technology, Inc.
+ * Alex Bounine <alexandre.bounine@idt.com>
+ * - Added Port-Write message handling
+ * - Added Machine Check exception handling
+ *
+ * Copyright (C) 2007, 2008, 2010, 2011 Freescale Semiconductor, Inc.
+ * Zhang Wei <wei.zhang@freescale.com>
+ * Lian Minghuan-B31939 <Minghuan.Lian@freescale.com>
+ * Liu Gang <Gang.Liu@freescale.com>
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __FSL_RIO_H
+#define __FSL_RIO_H
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/kfifo.h>
+
+#define RIO_REGS_WIN(mport)	(((struct rio_priv *)(mport->priv))->regs_win)
+
+#define RIO_MAINT_WIN_SIZE	0x400000
+#define RIO_LTLEDCSR		0x0608
+
+#define DOORBELL_ROWAR_EN	0x80000000
+#define DOORBELL_ROWAR_TFLOWLV	0x08000000 /* highest priority level */
+#define DOORBELL_ROWAR_PCI	0x02000000 /* PCI window */
+#define DOORBELL_ROWAR_NREAD	0x00040000 /* NREAD */
+#define DOORBELL_ROWAR_MAINTRD	0x00070000  /* maintenance read */
+#define DOORBELL_ROWAR_RES	0x00002000 /* wrtpy: reserverd */
+#define DOORBELL_ROWAR_MAINTWD	0x00007000
+#define DOORBELL_ROWAR_SIZE	0x0000000b /* window size is 4k */
+
+#define RIO_ATMU_REGS_PORT1_OFFSET	0x10c00
+#define RIO_ATMU_REGS_PORT2_OFFSET	0x10e00
+#define RIO_S_DBELL_REGS_OFFSET	0x13400
+#define RIO_S_PW_REGS_OFFSET	0x134e0
+#define RIO_ATMU_REGS_DBELL_OFFSET	0x10C40
+#define RIO_INB_ATMU_REGS_PORT1_OFFSET 0x10d60
+#define RIO_INB_ATMU_REGS_PORT2_OFFSET 0x10f60
+
+#define MAX_MSG_UNIT_NUM	2
+#define MAX_PORT_NUM		4
+#define RIO_INB_ATMU_COUNT	4
+
+struct rio_atmu_regs {
+	 u32 rowtar;
+	 u32 rowtear;
+	 u32 rowbar;
+	 u32 pad1;
+	 u32 rowar;
+	 u32 pad2[3];
+};
+
+struct rio_inb_atmu_regs {
+	u32 riwtar;
+	u32 pad1;
+	u32 riwbar;
+	u32 pad2;
+	u32 riwar;
+	u32 pad3[3];
+};
+
+struct rio_dbell_ring {
+	void *virt;
+	dma_addr_t phys;
+};
+
+struct rio_port_write_msg {
+	 void *virt;
+	 dma_addr_t phys;
+	 u32 msg_count;
+	 u32 err_count;
+	 u32 discard_count;
+};
+
+struct fsl_rio_dbell {
+	struct rio_mport *mport[MAX_PORT_NUM];
+	struct device *dev;
+	struct rio_dbell_regs __iomem *dbell_regs;
+	struct rio_dbell_ring dbell_ring;
+	int bellirq;
+};
+
+struct fsl_rio_pw {
+	struct device *dev;
+	struct rio_pw_regs __iomem *pw_regs;
+	struct rio_port_write_msg port_write_msg;
+	int pwirq;
+	struct work_struct pw_work;
+	struct kfifo pw_fifo;
+	spinlock_t pw_fifo_lock;
+};
+
+struct rio_priv {
+	struct device *dev;
+	void __iomem *regs_win;
+	struct rio_atmu_regs __iomem *atmu_regs;
+	struct rio_atmu_regs __iomem *maint_atmu_regs;
+	struct rio_inb_atmu_regs __iomem *inb_atmu_regs;
+	void __iomem *maint_win;
+	void *rmm_handle; /* RapidIO message manager(unit) Handle */
+};
+
+extern void __iomem *rio_regs_win;
+extern void __iomem *rmu_regs_win;
+
+extern resource_size_t rio_law_start;
+
+extern struct fsl_rio_dbell *dbell;
+extern struct fsl_rio_pw *pw;
+
+extern int fsl_rio_setup_rmu(struct rio_mport *mport,
+	struct device_node *node);
+extern int fsl_rio_port_write_init(struct fsl_rio_pw *pw);
+extern int fsl_rio_pw_enable(struct rio_mport *mport, int enable);
+extern void fsl_rio_port_error_handler(int offset);
+extern int fsl_rio_doorbell_init(struct fsl_rio_dbell *dbell);
+
+extern int fsl_rio_doorbell_send(struct rio_mport *mport,
+				int index, u16 destid, u16 data);
+extern int fsl_add_outb_message(struct rio_mport *mport,
+	struct rio_dev *rdev,
+	int mbox, void *buffer, size_t len);
+extern int fsl_open_outb_mbox(struct rio_mport *mport,
+	void *dev_id, int mbox, int entries);
+extern void fsl_close_outb_mbox(struct rio_mport *mport, int mbox);
+extern int fsl_open_inb_mbox(struct rio_mport *mport,
+	void *dev_id, int mbox, int entries);
+extern void fsl_close_inb_mbox(struct rio_mport *mport, int mbox);
+extern int fsl_add_inb_buffer(struct rio_mport *mport, int mbox, void *buf);
+extern void *fsl_get_inb_message(struct rio_mport *mport, int mbox);
+
+#endif