From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: 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 Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior 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 --- .../mips/include/asm/mach-lantiq/xway/xway_dma.h | 60 ++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 kernel/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h (limited to 'kernel/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h') diff --git a/kernel/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h b/kernel/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h new file mode 100644 index 000000000..5f8693d5a --- /dev/null +++ b/kernel/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h @@ -0,0 +1,60 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright (C) 2011 John Crispin + */ + +#ifndef LTQ_DMA_H__ +#define LTQ_DMA_H__ + +#define LTQ_DESC_SIZE 0x08 /* each descriptor is 64bit */ +#define LTQ_DESC_NUM 0x40 /* 64 descriptors / channel */ + +#define LTQ_DMA_OWN BIT(31) /* owner bit */ +#define LTQ_DMA_C BIT(30) /* complete bit */ +#define LTQ_DMA_SOP BIT(29) /* start of packet */ +#define LTQ_DMA_EOP BIT(28) /* end of packet */ +#define LTQ_DMA_TX_OFFSET(x) ((x & 0x1f) << 23) /* data bytes offset */ +#define LTQ_DMA_RX_OFFSET(x) ((x & 0x7) << 23) /* data bytes offset */ +#define LTQ_DMA_SIZE_MASK (0xffff) /* the size field is 16 bit */ + +struct ltq_dma_desc { + u32 ctl; + u32 addr; +}; + +struct ltq_dma_channel { + int nr; /* the channel number */ + int irq; /* the mapped irq */ + int desc; /* the current descriptor */ + struct ltq_dma_desc *desc_base; /* the descriptor base */ + int phys; /* physical addr */ +}; + +enum { + DMA_PORT_ETOP = 0, + DMA_PORT_DEU, +}; + +extern void ltq_dma_enable_irq(struct ltq_dma_channel *ch); +extern void ltq_dma_disable_irq(struct ltq_dma_channel *ch); +extern void ltq_dma_ack_irq(struct ltq_dma_channel *ch); +extern void ltq_dma_open(struct ltq_dma_channel *ch); +extern void ltq_dma_close(struct ltq_dma_channel *ch); +extern void ltq_dma_alloc_tx(struct ltq_dma_channel *ch); +extern void ltq_dma_alloc_rx(struct ltq_dma_channel *ch); +extern void ltq_dma_free(struct ltq_dma_channel *ch); +extern void ltq_dma_init_port(int p); + +#endif -- cgit 1.2.3-korg