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, 165 insertions, 0 deletions

diff --git a/kernel/arch/blackfin/include/asm/bfin_dma.h b/kernel/arch/blackfin/include/asm/bfin_dma.h
new file mode 100644
index 000000000..6319f4e49
--- /dev/null
+++ b/kernel/arch/blackfin/include/asm/bfin_dma.h
@@ -0,0 +1,165 @@
+/*
+ * bfin_dma.h - Blackfin DMA defines/structures/etc...
+ *
+ * Copyright 2004-2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_DMA_H__
+#define __ASM_BFIN_DMA_H__
+
+#include <linux/types.h>
+
+/* DMA_CONFIG Masks */
+#define DMAEN			0x0001	/* DMA Channel Enable */
+#define WNR				0x0002	/* Channel Direction (W/R*) */
+#define WDSIZE_8		0x0000	/* Transfer Word Size = 8 */
+#define PSIZE_8			0x00000000	/* Transfer Word Size = 16 */
+
+#ifdef CONFIG_BF60x
+
+#define PSIZE_16		0x00000010	/* Transfer Word Size = 16 */
+#define PSIZE_32		0x00000020	/* Transfer Word Size = 32 */
+#define PSIZE_64		0x00000030	/* Transfer Word Size = 32 */
+#define WDSIZE_16		0x00000100	/* Transfer Word Size = 16 */
+#define WDSIZE_32		0x00000200	/* Transfer Word Size = 32 */
+#define WDSIZE_64		0x00000300	/* Transfer Word Size = 32 */
+#define WDSIZE_128		0x00000400	/* Transfer Word Size = 32 */
+#define WDSIZE_256		0x00000500	/* Transfer Word Size = 32 */
+#define DMA2D			0x04000000	/* DMA Mode (2D/1D*) */
+#define RESTART			0x00000004	/* DMA Buffer Clear SYNC */
+#define DI_EN_X			0x00100000	/* Data Interrupt Enable in X count */
+#define DI_EN_Y			0x00200000	/* Data Interrupt Enable in Y count */
+#define DI_EN_P			0x00300000	/* Data Interrupt Enable in Peripheral */
+#define DI_EN			DI_EN_X		/* Data Interrupt Enable */
+#define NDSIZE_0		0x00000000	/* Next Descriptor Size = 1 */
+#define NDSIZE_1		0x00010000	/* Next Descriptor Size = 2 */
+#define NDSIZE_2		0x00020000	/* Next Descriptor Size = 3 */
+#define NDSIZE_3		0x00030000	/* Next Descriptor Size = 4 */
+#define NDSIZE_4		0x00040000	/* Next Descriptor Size = 5 */
+#define NDSIZE_5		0x00050000	/* Next Descriptor Size = 6 */
+#define NDSIZE_6		0x00060000	/* Next Descriptor Size = 7 */
+#define NDSIZE			0x00070000	/* Next Descriptor Size */
+#define NDSIZE_OFFSET		16		/* Next Descriptor Size Offset */
+#define DMAFLOW_LIST		0x00004000	/* Descriptor List Mode */
+#define DMAFLOW_LARGE		DMAFLOW_LIST
+#define DMAFLOW_ARRAY		0x00005000	/* Descriptor Array Mode */
+#define DMAFLOW_LIST_DEMAND	0x00006000	/* Descriptor Demand List Mode */
+#define DMAFLOW_ARRAY_DEMAND	0x00007000	/* Descriptor Demand Array Mode */
+#define DMA_RUN_DFETCH		0x00000100	/* DMA Channel Running Indicator (DFETCH) */
+#define DMA_RUN			0x00000200	/* DMA Channel Running Indicator */
+#define DMA_RUN_WAIT_TRIG	0x00000300	/* DMA Channel Running Indicator (WAIT TRIG) */
+#define DMA_RUN_WAIT_ACK	0x00000400	/* DMA Channel Running Indicator (WAIT ACK) */
+
+#else
+
+#define PSIZE_16		0x0000	/* Transfer Word Size = 16 */
+#define PSIZE_32		0x0000	/* Transfer Word Size = 32 */
+#define WDSIZE_16		0x0004	/* Transfer Word Size = 16 */
+#define WDSIZE_32		0x0008	/* Transfer Word Size = 32 */
+#define DMA2D			0x0010	/* DMA Mode (2D/1D*) */
+#define RESTART			0x0020	/* DMA Buffer Clear */
+#define DI_SEL			0x0040	/* Data Interrupt Timing Select */
+#define DI_EN			0x0080	/* Data Interrupt Enable */
+#define DI_EN_X			0x00C0	/* Data Interrupt Enable in X count*/
+#define DI_EN_Y			0x0080	/* Data Interrupt Enable in Y count*/
+#define NDSIZE_0		0x0000	/* Next Descriptor Size = 0 (Stop/Autobuffer) */
+#define NDSIZE_1		0x0100	/* Next Descriptor Size = 1 */
+#define NDSIZE_2		0x0200	/* Next Descriptor Size = 2 */
+#define NDSIZE_3		0x0300	/* Next Descriptor Size = 3 */
+#define NDSIZE_4		0x0400	/* Next Descriptor Size = 4 */
+#define NDSIZE_5		0x0500	/* Next Descriptor Size = 5 */
+#define NDSIZE_6		0x0600	/* Next Descriptor Size = 6 */
+#define NDSIZE_7		0x0700	/* Next Descriptor Size = 7 */
+#define NDSIZE_8		0x0800	/* Next Descriptor Size = 8 */
+#define NDSIZE_9		0x0900	/* Next Descriptor Size = 9 */
+#define NDSIZE			0x0f00	/* Next Descriptor Size */
+#define NDSIZE_OFFSET		8	/* Next Descriptor Size Offset */
+#define DMAFLOW_ARRAY	0x4000	/* Descriptor Array Mode */
+#define DMAFLOW_SMALL	0x6000	/* Small Model Descriptor List Mode */
+#define DMAFLOW_LARGE	0x7000	/* Large Model Descriptor List Mode */
+#define DFETCH			0x0004	/* DMA Descriptor Fetch Indicator */
+#define DMA_RUN			0x0008	/* DMA Channel Running Indicator */
+
+#endif
+#define DMAFLOW			0x7000	/* Flow Control */
+#define DMAFLOW_STOP	0x0000	/* Stop Mode */
+#define DMAFLOW_AUTO	0x1000	/* Autobuffer Mode */
+
+/* DMA_IRQ_STATUS Masks */
+#define DMA_DONE		0x0001	/* DMA Completion Interrupt Status */
+#define DMA_ERR			0x0002	/* DMA Error Interrupt Status */
+#ifdef CONFIG_BF60x
+#define DMA_PIRQ		0x0004	/* DMA Peripheral Error Interrupt Status */
+#else
+#define DMA_PIRQ		0
+#endif
+
+/*
+ * All Blackfin system MMRs are padded to 32bits even if the register
+ * itself is only 16bits.  So use a helper macro to streamline this.
+ */
+#define __BFP(m) u16 m; u16 __pad_##m
+
+/*
+ * bfin dma registers layout
+ */
+struct bfin_dma_regs {
+	u32 next_desc_ptr;
+	u32 start_addr;
+#ifdef CONFIG_BF60x
+	u32 cfg;
+	u32 x_count;
+	u32 x_modify;
+	u32 y_count;
+	u32 y_modify;
+	u32 pad1;
+	u32 pad2;
+	u32 curr_desc_ptr;
+	u32 prev_desc_ptr;
+	u32 curr_addr;
+	u32 irq_status;
+	u32 curr_x_count;
+	u32 curr_y_count;
+	u32 pad3;
+	u32 bw_limit_count;
+	u32 curr_bw_limit_count;
+	u32 bw_monitor_count;
+	u32 curr_bw_monitor_count;
+#else
+	__BFP(config);
+	u32 __pad0;
+	__BFP(x_count);
+	__BFP(x_modify);
+	__BFP(y_count);
+	__BFP(y_modify);
+	u32 curr_desc_ptr;
+	u32 curr_addr;
+	__BFP(irq_status);
+	__BFP(peripheral_map);
+	__BFP(curr_x_count);
+	u32 __pad1;
+	__BFP(curr_y_count);
+	u32 __pad2;
+#endif
+};
+
+#ifndef CONFIG_BF60x
+/*
+ * bfin handshake mdma registers layout
+ */
+struct bfin_hmdma_regs {
+	__BFP(control);
+	__BFP(ecinit);
+	__BFP(bcinit);
+	__BFP(ecurgent);
+	__BFP(ecoverflow);
+	__BFP(ecount);
+	__BFP(bcount);
+};
+#endif
+
+#undef __BFP
+
+#endif