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, 107 insertions, 0 deletions

diff --git a/kernel/include/uapi/linux/rtc.h b/kernel/include/uapi/linux/rtc.h
new file mode 100644
index 000000000..f8c82e6f2
--- /dev/null
+++ b/kernel/include/uapi/linux/rtc.h
@@ -0,0 +1,107 @@
+/*
+ * Generic RTC interface.
+ * This version contains the part of the user interface to the Real Time Clock
+ * service. It is used with both the legacy mc146818 and also  EFI
+ * Struct rtc_time and first 12 ioctl by Paul Gortmaker, 1996 - separated out
+ * from <linux/mc146818rtc.h> to this file for 2.4 kernels.
+ *
+ * Copyright (C) 1999 Hewlett-Packard Co.
+ * Copyright (C) 1999 Stephane Eranian <eranian@hpl.hp.com>
+ */
+#ifndef _UAPI_LINUX_RTC_H_
+#define _UAPI_LINUX_RTC_H_
+
+/*
+ * The struct used to pass data via the following ioctl. Similar to the
+ * struct tm in <time.h>, but it needs to be here so that the kernel
+ * source is self contained, allowing cross-compiles, etc. etc.
+ */
+
+struct rtc_time {
+	int tm_sec;
+	int tm_min;
+	int tm_hour;
+	int tm_mday;
+	int tm_mon;
+	int tm_year;
+	int tm_wday;
+	int tm_yday;
+	int tm_isdst;
+};
+
+/*
+ * This data structure is inspired by the EFI (v0.92) wakeup
+ * alarm API.
+ */
+struct rtc_wkalrm {
+	unsigned char enabled;	/* 0 = alarm disabled, 1 = alarm enabled */
+	unsigned char pending;  /* 0 = alarm not pending, 1 = alarm pending */
+	struct rtc_time time;	/* time the alarm is set to */
+};
+
+/*
+ * Data structure to control PLL correction some better RTC feature
+ * pll_value is used to get or set current value of correction,
+ * the rest of the struct is used to query HW capabilities.
+ * This is modeled after the RTC used in Q40/Q60 computers but
+ * should be sufficiently flexible for other devices
+ *
+ * +ve pll_value means clock will run faster by
+ *   pll_value*pll_posmult/pll_clock
+ * -ve pll_value means clock will run slower by
+ *   pll_value*pll_negmult/pll_clock
+ */
+
+struct rtc_pll_info {
+	int pll_ctrl;       /* placeholder for fancier control */
+	int pll_value;      /* get/set correction value */
+	int pll_max;        /* max +ve (faster) adjustment value */
+	int pll_min;        /* max -ve (slower) adjustment value */
+	int pll_posmult;    /* factor for +ve correction */
+	int pll_negmult;    /* factor for -ve correction */
+	long pll_clock;     /* base PLL frequency */
+};
+
+/*
+ * ioctl calls that are permitted to the /dev/rtc interface, if
+ * any of the RTC drivers are enabled.
+ */
+
+#define RTC_AIE_ON	_IO('p', 0x01)	/* Alarm int. enable on		*/
+#define RTC_AIE_OFF	_IO('p', 0x02)	/* ... off			*/
+#define RTC_UIE_ON	_IO('p', 0x03)	/* Update int. enable on	*/
+#define RTC_UIE_OFF	_IO('p', 0x04)	/* ... off			*/
+#define RTC_PIE_ON	_IO('p', 0x05)	/* Periodic int. enable on	*/
+#define RTC_PIE_OFF	_IO('p', 0x06)	/* ... off			*/
+#define RTC_WIE_ON	_IO('p', 0x0f)  /* Watchdog int. enable on	*/
+#define RTC_WIE_OFF	_IO('p', 0x10)  /* ... off			*/
+
+#define RTC_ALM_SET	_IOW('p', 0x07, struct rtc_time) /* Set alarm time  */
+#define RTC_ALM_READ	_IOR('p', 0x08, struct rtc_time) /* Read alarm time */
+#define RTC_RD_TIME	_IOR('p', 0x09, struct rtc_time) /* Read RTC time   */
+#define RTC_SET_TIME	_IOW('p', 0x0a, struct rtc_time) /* Set RTC time    */
+#define RTC_IRQP_READ	_IOR('p', 0x0b, unsigned long)	 /* Read IRQ rate   */
+#define RTC_IRQP_SET	_IOW('p', 0x0c, unsigned long)	 /* Set IRQ rate    */
+#define RTC_EPOCH_READ	_IOR('p', 0x0d, unsigned long)	 /* Read epoch      */
+#define RTC_EPOCH_SET	_IOW('p', 0x0e, unsigned long)	 /* Set epoch       */
+
+#define RTC_WKALM_SET	_IOW('p', 0x0f, struct rtc_wkalrm)/* Set wakeup alarm*/
+#define RTC_WKALM_RD	_IOR('p', 0x10, struct rtc_wkalrm)/* Get wakeup alarm*/
+
+#define RTC_PLL_GET	_IOR('p', 0x11, struct rtc_pll_info)  /* Get PLL correction */
+#define RTC_PLL_SET	_IOW('p', 0x12, struct rtc_pll_info)  /* Set PLL correction */
+
+#define RTC_VL_READ	_IOR('p', 0x13, int)	/* Voltage low detector */
+#define RTC_VL_CLR	_IO('p', 0x14)		/* Clear voltage low information */
+
+/* interrupt flags */
+#define RTC_IRQF 0x80	/* Any of the following is active */
+#define RTC_PF 0x40	/* Periodic interrupt */
+#define RTC_AF 0x20	/* Alarm interrupt */
+#define RTC_UF 0x10	/* Update interrupt for 1Hz RTC */
+
+
+#define RTC_MAX_FREQ	8192
+
+
+#endif /* _UAPI_LINUX_RTC_H_ */