[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / virtio_mmio.h

/*
 * Virtio platform device driver
 *
 * Copyright 2011, ARM Ltd.
 *
 * Based on Virtio PCI driver by Anthony Liguori, copyright IBM Corp. 2007
 *
 * This header is BSD licensed so anyone can use the definitions to implement
 * compatible drivers/servers.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. Neither the name of IBM nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``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 IBM OR CONTRIBUTORS 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.
 */

#ifndef _LINUX_VIRTIO_MMIO_H
#define _LINUX_VIRTIO_MMIO_H

/*
 * Control registers
 */

/* Magic value ("virt" string) - Read Only */
#define VIRTIO_MMIO_MAGIC_VALUE		0x000

/* Virtio device version - Read Only */
#define VIRTIO_MMIO_VERSION		0x004

/* Virtio device ID - Read Only */
#define VIRTIO_MMIO_DEVICE_ID		0x008

/* Virtio vendor ID - Read Only */
#define VIRTIO_MMIO_VENDOR_ID		0x00c

/* Bitmask of the features supported by the host
 * (32 bits per set) - Read Only */
#define VIRTIO_MMIO_HOST_FEATURES	0x010

/* Host features set selector - Write Only */
#define VIRTIO_MMIO_HOST_FEATURES_SEL	0x014

/* Bitmask of features activated by the guest
 * (32 bits per set) - Write Only */
#define VIRTIO_MMIO_GUEST_FEATURES	0x020

/* Activated features set selector - Write Only */
#define VIRTIO_MMIO_GUEST_FEATURES_SEL	0x024

/* Guest's memory page size in bytes - Write Only */
#define VIRTIO_MMIO_GUEST_PAGE_SIZE	0x028

/* Queue selector - Write Only */
#define VIRTIO_MMIO_QUEUE_SEL		0x030

/* Maximum size of the currently selected queue - Read Only */
#define VIRTIO_MMIO_QUEUE_NUM_MAX	0x034

/* Queue size for the currently selected queue - Write Only */
#define VIRTIO_MMIO_QUEUE_NUM		0x038

/* Used Ring alignment for the currently selected queue - Write Only */
#define VIRTIO_MMIO_QUEUE_ALIGN		0x03c

/* Guest's PFN for the currently selected queue - Read Write */
#define VIRTIO_MMIO_QUEUE_PFN		0x040

/* Queue notifier - Write Only */
#define VIRTIO_MMIO_QUEUE_NOTIFY	0x050

/* Interrupt status - Read Only */
#define VIRTIO_MMIO_INTERRUPT_STATUS	0x060

/* Interrupt acknowledge - Write Only */
#define VIRTIO_MMIO_INTERRUPT_ACK	0x064

/* Device status register - Read Write */
#define VIRTIO_MMIO_STATUS		0x070

/* The config space is defined by each driver as
 * the per-driver configuration space - Read Write */
#define VIRTIO_MMIO_CONFIG		0x100


/*
 * Interrupt flags (re: interrupt status & acknowledge registers)
 */

#define VIRTIO_MMIO_INT_VRING		(1 << 0)
#define VIRTIO_MMIO_INT_CONFIG		(1 << 1)

#endif
Commit	Line	Data
edfd52e6 PM	1	/*
	2	* Virtio platform device driver
	3	*
	4	* Copyright 2011, ARM Ltd.
	5	*
	6	* Based on Virtio PCI driver by Anthony Liguori, copyright IBM Corp. 2007
	7	*
	8	* This header is BSD licensed so anyone can use the definitions to implement
	9	* compatible drivers/servers.
	10	*
	11	* Redistribution and use in source and binary forms, with or without
	12	* modification, are permitted provided that the following conditions
	13	* are met:
	14	* 1. Redistributions of source code must retain the above copyright
	15	* notice, this list of conditions and the following disclaimer.
	16	* 2. Redistributions in binary form must reproduce the above copyright
	17	* notice, this list of conditions and the following disclaimer in the
	18	* documentation and/or other materials provided with the distribution.
	19	* 3. Neither the name of IBM nor the names of its contributors
	20	* may be used to endorse or promote products derived from this software
	21	* without specific prior written permission.
	22	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
	23	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	24	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	25	* ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
	26	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	27	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	28	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	29	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	30	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	31	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	32	* SUCH DAMAGE.
	33	*/
	34
	35	#ifndef _LINUX_VIRTIO_MMIO_H
	36	#define _LINUX_VIRTIO_MMIO_H
	37
	38	/*
	39	* Control registers
	40	*/
	41
	42	/* Magic value ("virt" string) - Read Only */
	43	#define VIRTIO_MMIO_MAGIC_VALUE 0x000
	44
	45	/* Virtio device version - Read Only */
	46	#define VIRTIO_MMIO_VERSION 0x004
	47
	48	/* Virtio device ID - Read Only */
	49	#define VIRTIO_MMIO_DEVICE_ID 0x008
	50
	51	/* Virtio vendor ID - Read Only */
	52	#define VIRTIO_MMIO_VENDOR_ID 0x00c
	53
	54	/* Bitmask of the features supported by the host
	55	* (32 bits per set) - Read Only */
	56	#define VIRTIO_MMIO_HOST_FEATURES 0x010
	57
	58	/* Host features set selector - Write Only */
	59	#define VIRTIO_MMIO_HOST_FEATURES_SEL 0x014
	60
	61	/* Bitmask of features activated by the guest
	62	* (32 bits per set) - Write Only */
	63	#define VIRTIO_MMIO_GUEST_FEATURES 0x020
	64
65	/* Activated features set selector - Write Only */
fe1a7fe2	66	#define VIRTIO_MMIO_GUEST_FEATURES_SEL 0x024
edfd52e6 PM	67
	68	/* Guest's memory page size in bytes - Write Only */
	69	#define VIRTIO_MMIO_GUEST_PAGE_SIZE 0x028
	70
	71	/* Queue selector - Write Only */
	72	#define VIRTIO_MMIO_QUEUE_SEL 0x030
	73
	74	/* Maximum size of the currently selected queue - Read Only */
	75	#define VIRTIO_MMIO_QUEUE_NUM_MAX 0x034
	76
	77	/* Queue size for the currently selected queue - Write Only */
	78	#define VIRTIO_MMIO_QUEUE_NUM 0x038
	79
	80	/* Used Ring alignment for the currently selected queue - Write Only */
	81	#define VIRTIO_MMIO_QUEUE_ALIGN 0x03c
	82
	83	/* Guest's PFN for the currently selected queue - Read Write */
	84	#define VIRTIO_MMIO_QUEUE_PFN 0x040
	85
	86	/* Queue notifier - Write Only */
	87	#define VIRTIO_MMIO_QUEUE_NOTIFY 0x050
	88
	89	/* Interrupt status - Read Only */
	90	#define VIRTIO_MMIO_INTERRUPT_STATUS 0x060
	91
	92	/* Interrupt acknowledge - Write Only */
	93	#define VIRTIO_MMIO_INTERRUPT_ACK 0x064
	94
	95	/* Device status register - Read Write */
	96	#define VIRTIO_MMIO_STATUS 0x070
	97
	98	/* The config space is defined by each driver as
	99	* the per-driver configuration space - Read Write */
	100	#define VIRTIO_MMIO_CONFIG 0x100
	101
	102
	103
	104	/*
	105	* Interrupt flags (re: interrupt status & acknowledge registers)
	106	*/
	107
	108	#define VIRTIO_MMIO_INT_VRING (1 << 0)
	109	#define VIRTIO_MMIO_INT_CONFIG (1 << 1)
	110
	111	#endif