[net-next-2.6.git] / drivers / ata / ahci.h

/*
 *  ahci.h - Common AHCI SATA definitions and declarations
 *
 *  Maintained by:  Jeff Garzik <jgarzik@pobox.com>
 *    		    Please ALWAYS copy linux-ide@vger.kernel.org
 *		    on emails.
 *
 *  Copyright 2004-2005 Red Hat, Inc.
 *
 *
 *  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, or (at your option)
 *  any later version.
 *
 *  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; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * libata documentation is available via 'make {ps|pdf}docs',
 * as Documentation/DocBook/libata.*
 *
 * AHCI hardware documentation:
 * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
 * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
 *
 */

#ifndef _AHCI_H
#define _AHCI_H

#include <linux/libata.h>

/* Enclosure Management Control */
#define EM_CTRL_MSG_TYPE              0x000f0000

/* Enclosure Management LED Message Type */
#define EM_MSG_LED_HBA_PORT           0x0000000f
#define EM_MSG_LED_PMP_SLOT           0x0000ff00
#define EM_MSG_LED_VALUE              0xffff0000
#define EM_MSG_LED_VALUE_ACTIVITY     0x00070000
#define EM_MSG_LED_VALUE_OFF          0xfff80000
#define EM_MSG_LED_VALUE_ON           0x00010000

enum {
	AHCI_MAX_PORTS		= 32,
	AHCI_MAX_SG		= 168, /* hardware max is 64K */
	AHCI_DMA_BOUNDARY	= 0xffffffff,
	AHCI_MAX_CMDS		= 32,
	AHCI_CMD_SZ		= 32,
	AHCI_CMD_SLOT_SZ	= AHCI_MAX_CMDS * AHCI_CMD_SZ,
	AHCI_RX_FIS_SZ		= 256,
	AHCI_CMD_TBL_CDB	= 0x40,
	AHCI_CMD_TBL_HDR_SZ	= 0x80,
	AHCI_CMD_TBL_SZ		= AHCI_CMD_TBL_HDR_SZ + (AHCI_MAX_SG * 16),
	AHCI_CMD_TBL_AR_SZ	= AHCI_CMD_TBL_SZ * AHCI_MAX_CMDS,
	AHCI_PORT_PRIV_DMA_SZ	= AHCI_CMD_SLOT_SZ + AHCI_CMD_TBL_AR_SZ +
				  AHCI_RX_FIS_SZ,
	AHCI_PORT_PRIV_FBS_DMA_SZ	= AHCI_CMD_SLOT_SZ +
					  AHCI_CMD_TBL_AR_SZ +
					  (AHCI_RX_FIS_SZ * 16),
	AHCI_IRQ_ON_SG		= (1 << 31),
	AHCI_CMD_ATAPI		= (1 << 5),
	AHCI_CMD_WRITE		= (1 << 6),
	AHCI_CMD_PREFETCH	= (1 << 7),
	AHCI_CMD_RESET		= (1 << 8),
	AHCI_CMD_CLR_BUSY	= (1 << 10),

	RX_FIS_D2H_REG		= 0x40,	/* offset of D2H Register FIS data */
	RX_FIS_SDB		= 0x58, /* offset of SDB FIS data */
	RX_FIS_UNK		= 0x60, /* offset of Unknown FIS data */

	/* global controller registers */
	HOST_CAP		= 0x00, /* host capabilities */
	HOST_CTL		= 0x04, /* global host control */
	HOST_IRQ_STAT		= 0x08, /* interrupt status */
	HOST_PORTS_IMPL		= 0x0c, /* bitmap of implemented ports */
	HOST_VERSION		= 0x10, /* AHCI spec. version compliancy */
	HOST_EM_LOC		= 0x1c, /* Enclosure Management location */
	HOST_EM_CTL		= 0x20, /* Enclosure Management Control */
	HOST_CAP2		= 0x24, /* host capabilities, extended */

	/* HOST_CTL bits */
	HOST_RESET		= (1 << 0),  /* reset controller; self-clear */
	HOST_IRQ_EN		= (1 << 1),  /* global IRQ enable */
	HOST_AHCI_EN		= (1 << 31), /* AHCI enabled */

	/* HOST_CAP bits */
	HOST_CAP_SXS		= (1 << 5),  /* Supports External SATA */
	HOST_CAP_EMS		= (1 << 6),  /* Enclosure Management support */
	HOST_CAP_CCC		= (1 << 7),  /* Command Completion Coalescing */
	HOST_CAP_PART		= (1 << 13), /* Partial state capable */
	HOST_CAP_SSC		= (1 << 14), /* Slumber state capable */
	HOST_CAP_PIO_MULTI	= (1 << 15), /* PIO multiple DRQ support */
	HOST_CAP_FBS		= (1 << 16), /* FIS-based switching support */
	HOST_CAP_PMP		= (1 << 17), /* Port Multiplier support */
	HOST_CAP_ONLY		= (1 << 18), /* Supports AHCI mode only */
	HOST_CAP_CLO		= (1 << 24), /* Command List Override support */
	HOST_CAP_LED		= (1 << 25), /* Supports activity LED */
	HOST_CAP_ALPM		= (1 << 26), /* Aggressive Link PM support */
	HOST_CAP_SSS		= (1 << 27), /* Staggered Spin-up */
	HOST_CAP_MPS		= (1 << 28), /* Mechanical presence switch */
	HOST_CAP_SNTF		= (1 << 29), /* SNotification register */
	HOST_CAP_NCQ		= (1 << 30), /* Native Command Queueing */
	HOST_CAP_64		= (1 << 31), /* PCI DAC (64-bit DMA) support */

	/* HOST_CAP2 bits */
	HOST_CAP2_BOH		= (1 << 0),  /* BIOS/OS handoff supported */
	HOST_CAP2_NVMHCI	= (1 << 1),  /* NVMHCI supported */
	HOST_CAP2_APST		= (1 << 2),  /* Automatic partial to slumber */

	/* registers for each SATA port */
	PORT_LST_ADDR		= 0x00, /* command list DMA addr */
	PORT_LST_ADDR_HI	= 0x04, /* command list DMA addr hi */
	PORT_FIS_ADDR		= 0x08, /* FIS rx buf addr */
	PORT_FIS_ADDR_HI	= 0x0c, /* FIS rx buf addr hi */
	PORT_IRQ_STAT		= 0x10, /* interrupt status */
	PORT_IRQ_MASK		= 0x14, /* interrupt enable/disable mask */
	PORT_CMD		= 0x18, /* port command */
	PORT_TFDATA		= 0x20,	/* taskfile data */
	PORT_SIG		= 0x24,	/* device TF signature */
	PORT_CMD_ISSUE		= 0x38, /* command issue */
	PORT_SCR_STAT		= 0x28, /* SATA phy register: SStatus */
	PORT_SCR_CTL		= 0x2c, /* SATA phy register: SControl */
	PORT_SCR_ERR		= 0x30, /* SATA phy register: SError */
	PORT_SCR_ACT		= 0x34, /* SATA phy register: SActive */
	PORT_SCR_NTF		= 0x3c, /* SATA phy register: SNotification */
	PORT_FBS		= 0x40, /* FIS-based Switching */

	/* PORT_IRQ_{STAT,MASK} bits */
	PORT_IRQ_COLD_PRES	= (1 << 31), /* cold presence detect */
	PORT_IRQ_TF_ERR		= (1 << 30), /* task file error */
	PORT_IRQ_HBUS_ERR	= (1 << 29), /* host bus fatal error */
	PORT_IRQ_HBUS_DATA_ERR	= (1 << 28), /* host bus data error */
	PORT_IRQ_IF_ERR		= (1 << 27), /* interface fatal error */
	PORT_IRQ_IF_NONFATAL	= (1 << 26), /* interface non-fatal error */
	PORT_IRQ_OVERFLOW	= (1 << 24), /* xfer exhausted available S/G */
	PORT_IRQ_BAD_PMP	= (1 << 23), /* incorrect port multiplier */

	PORT_IRQ_PHYRDY		= (1 << 22), /* PhyRdy changed */
	PORT_IRQ_DEV_ILCK	= (1 << 7), /* device interlock */
	PORT_IRQ_CONNECT	= (1 << 6), /* port connect change status */
	PORT_IRQ_SG_DONE	= (1 << 5), /* descriptor processed */
	PORT_IRQ_UNK_FIS	= (1 << 4), /* unknown FIS rx'd */
	PORT_IRQ_SDB_FIS	= (1 << 3), /* Set Device Bits FIS rx'd */
	PORT_IRQ_DMAS_FIS	= (1 << 2), /* DMA Setup FIS rx'd */
	PORT_IRQ_PIOS_FIS	= (1 << 1), /* PIO Setup FIS rx'd */
	PORT_IRQ_D2H_REG_FIS	= (1 << 0), /* D2H Register FIS rx'd */

	PORT_IRQ_FREEZE		= PORT_IRQ_HBUS_ERR |
				  PORT_IRQ_IF_ERR |
				  PORT_IRQ_CONNECT |
				  PORT_IRQ_PHYRDY |
				  PORT_IRQ_UNK_FIS |
				  PORT_IRQ_BAD_PMP,
	PORT_IRQ_ERROR		= PORT_IRQ_FREEZE |
				  PORT_IRQ_TF_ERR |
				  PORT_IRQ_HBUS_DATA_ERR,
	DEF_PORT_IRQ		= PORT_IRQ_ERROR | PORT_IRQ_SG_DONE |
				  PORT_IRQ_SDB_FIS | PORT_IRQ_DMAS_FIS |
				  PORT_IRQ_PIOS_FIS | PORT_IRQ_D2H_REG_FIS,

	/* PORT_CMD bits */
	PORT_CMD_ASP		= (1 << 27), /* Aggressive Slumber/Partial */
	PORT_CMD_ALPE		= (1 << 26), /* Aggressive Link PM enable */
	PORT_CMD_ATAPI		= (1 << 24), /* Device is ATAPI */
	PORT_CMD_FBSCP		= (1 << 22), /* FBS Capable Port */
	PORT_CMD_PMP		= (1 << 17), /* PMP attached */
	PORT_CMD_LIST_ON	= (1 << 15), /* cmd list DMA engine running */
	PORT_CMD_FIS_ON		= (1 << 14), /* FIS DMA engine running */
	PORT_CMD_FIS_RX		= (1 << 4), /* Enable FIS receive DMA engine */
	PORT_CMD_CLO		= (1 << 3), /* Command list override */
	PORT_CMD_POWER_ON	= (1 << 2), /* Power up device */
	PORT_CMD_SPIN_UP	= (1 << 1), /* Spin up device */
	PORT_CMD_START		= (1 << 0), /* Enable port DMA engine */

	PORT_CMD_ICC_MASK	= (0xf << 28), /* i/f ICC state mask */
	PORT_CMD_ICC_ACTIVE	= (0x1 << 28), /* Put i/f in active state */
	PORT_CMD_ICC_PARTIAL	= (0x2 << 28), /* Put i/f in partial state */
	PORT_CMD_ICC_SLUMBER	= (0x6 << 28), /* Put i/f in slumber state */

	PORT_FBS_DWE_OFFSET	= 16, /* FBS device with error offset */
	PORT_FBS_ADO_OFFSET	= 12, /* FBS active dev optimization offset */
	PORT_FBS_DEV_OFFSET	= 8,  /* FBS device to issue offset */
	PORT_FBS_DEV_MASK	= (0xf << PORT_FBS_DEV_OFFSET),  /* FBS.DEV */
	PORT_FBS_SDE		= (1 << 2), /* FBS single device error */
	PORT_FBS_DEC		= (1 << 1), /* FBS device error clear */
	PORT_FBS_EN		= (1 << 0), /* Enable FBS */

	/* hpriv->flags bits */
	AHCI_HFLAG_NO_NCQ		= (1 << 0),
	AHCI_HFLAG_IGN_IRQ_IF_ERR	= (1 << 1), /* ignore IRQ_IF_ERR */
	AHCI_HFLAG_IGN_SERR_INTERNAL	= (1 << 2), /* ignore SERR_INTERNAL */
	AHCI_HFLAG_32BIT_ONLY		= (1 << 3), /* force 32bit */
	AHCI_HFLAG_MV_PATA		= (1 << 4), /* PATA port */
	AHCI_HFLAG_NO_MSI		= (1 << 5), /* no PCI MSI */
	AHCI_HFLAG_NO_PMP		= (1 << 6), /* no PMP */
	AHCI_HFLAG_NO_HOTPLUG		= (1 << 7), /* ignore PxSERR.DIAG.N */
	AHCI_HFLAG_SECT255		= (1 << 8), /* max 255 sectors */
	AHCI_HFLAG_YES_NCQ		= (1 << 9), /* force NCQ cap on */
	AHCI_HFLAG_NO_SUSPEND		= (1 << 10), /* don't suspend */
	AHCI_HFLAG_SRST_TOUT_IS_OFFLINE	= (1 << 11), /* treat SRST timeout as
							link offline */
	AHCI_HFLAG_NO_SNTF		= (1 << 12), /* no sntf */
	AHCI_HFLAG_NO_FPDMA_AA		= (1 << 13), /* no FPDMA AA */
	AHCI_HFLAG_YES_FBS		= (1 << 14), /* force FBS cap on */

	/* ap->flags bits */

	AHCI_FLAG_COMMON		= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
					  ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
					  ATA_FLAG_ACPI_SATA | ATA_FLAG_AN |
					  ATA_FLAG_IPM,

	ICH_MAP				= 0x90, /* ICH MAP register */

	/* em constants */
	EM_MAX_SLOTS			= 8,
	EM_MAX_RETRY			= 5,

	/* em_ctl bits */
	EM_CTL_RST		= (1 << 9), /* Reset */
	EM_CTL_TM		= (1 << 8), /* Transmit Message */
	EM_CTL_MR		= (1 << 0), /* Message Recieved */
	EM_CTL_ALHD		= (1 << 26), /* Activity LED */
	EM_CTL_XMT		= (1 << 25), /* Transmit Only */
	EM_CTL_SMB		= (1 << 24), /* Single Message Buffer */

	/* em message type */
	EM_MSG_TYPE_LED		= (1 << 0), /* LED */
	EM_MSG_TYPE_SAFTE	= (1 << 1), /* SAF-TE */
	EM_MSG_TYPE_SES2	= (1 << 2), /* SES-2 */
	EM_MSG_TYPE_SGPIO	= (1 << 3), /* SGPIO */
};

struct ahci_cmd_hdr {
	__le32			opts;
	__le32			status;
	__le32			tbl_addr;
	__le32			tbl_addr_hi;
	__le32			reserved[4];
};

struct ahci_sg {
	__le32			addr;
	__le32			addr_hi;
	__le32			reserved;
	__le32			flags_size;
};

struct ahci_em_priv {
	enum sw_activity blink_policy;
	struct timer_list timer;
	unsigned long saved_activity;
	unsigned long activity;
	unsigned long led_state;
};

struct ahci_port_priv {
	struct ata_link		*active_link;
	struct ahci_cmd_hdr	*cmd_slot;
	dma_addr_t		cmd_slot_dma;
	void			*cmd_tbl;
	dma_addr_t		cmd_tbl_dma;
	void			*rx_fis;
	dma_addr_t		rx_fis_dma;
	/* for NCQ spurious interrupt analysis */
	unsigned int		ncq_saw_d2h:1;
	unsigned int		ncq_saw_dmas:1;
	unsigned int		ncq_saw_sdb:1;
	u32 			intr_mask;	/* interrupts to enable */
	bool			fbs_supported;	/* set iff FBS is supported */
	bool			fbs_enabled;	/* set iff FBS is enabled */
	int			fbs_last_dev;	/* save FBS.DEV of last FIS */
	/* enclosure management info per PM slot */
	struct ahci_em_priv	em_priv[EM_MAX_SLOTS];
};

struct ahci_host_priv {
	void __iomem *		mmio;		/* bus-independant mem map */
	unsigned int		flags;		/* AHCI_HFLAG_* */
	u32			cap;		/* cap to use */
	u32			cap2;		/* cap2 to use */
	u32			port_map;	/* port map to use */
	u32			saved_cap;	/* saved initial cap */
	u32			saved_cap2;	/* saved initial cap2 */
	u32			saved_port_map;	/* saved initial port_map */
	u32 			em_loc; /* enclosure management location */
	u32			em_buf_sz;	/* EM buffer size in byte */
	u32			em_msg_type;	/* EM message type */
};

extern int ahci_ignore_sss;

extern struct device_attribute *ahci_shost_attrs[];
extern struct device_attribute *ahci_sdev_attrs[];

#define AHCI_SHT(drv_name)						\
	ATA_NCQ_SHT(drv_name),						\
	.can_queue		= AHCI_MAX_CMDS - 1,			\
	.sg_tablesize		= AHCI_MAX_SG,				\
	.dma_boundary		= AHCI_DMA_BOUNDARY,			\
	.shost_attrs		= ahci_shost_attrs,			\
	.sdev_attrs		= ahci_sdev_attrs

extern struct ata_port_operations ahci_ops;

void ahci_save_initial_config(struct device *dev,
			      struct ahci_host_priv *hpriv,
			      unsigned int force_port_map,
			      unsigned int mask_port_map);
void ahci_init_controller(struct ata_host *host);
int ahci_reset_controller(struct ata_host *host);

int ahci_do_softreset(struct ata_link *link, unsigned int *class,
		      int pmp, unsigned long deadline,
		      int (*check_ready)(struct ata_link *link));

int ahci_stop_engine(struct ata_port *ap);
void ahci_start_engine(struct ata_port *ap);
int ahci_check_ready(struct ata_link *link);
int ahci_kick_engine(struct ata_port *ap);
void ahci_set_em_messages(struct ahci_host_priv *hpriv,
			  struct ata_port_info *pi);
int ahci_reset_em(struct ata_host *host);
irqreturn_t ahci_interrupt(int irq, void *dev_instance);
void ahci_print_info(struct ata_host *host, const char *scc_s);

static inline void __iomem *__ahci_port_base(struct ata_host *host,
					     unsigned int port_no)
{
	struct ahci_host_priv *hpriv = host->private_data;
	void __iomem *mmio = hpriv->mmio;

	return mmio + 0x100 + (port_no * 0x80);
}

static inline void __iomem *ahci_port_base(struct ata_port *ap)
{
	return __ahci_port_base(ap->host, ap->port_no);
}

static inline int ahci_nr_ports(u32 cap)
{
	return (cap & 0x1f) + 1;
}

#endif /* _AHCI_H */
Commit	Line	Data
365cfa1e AV	1	/*
	2	* ahci.h - Common AHCI SATA definitions and declarations
	3	*
	4	* Maintained by: Jeff Garzik <jgarzik@pobox.com>
	5	* Please ALWAYS copy linux-ide@vger.kernel.org
	6	* on emails.
	7	*
	8	* Copyright 2004-2005 Red Hat, Inc.
	9	*
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License as published by
	13	* the Free Software Foundation; either version 2, or (at your option)
	14	* any later version.
	15	*
	16	* This program is distributed in the hope that it will be useful,
	17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	* GNU General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU General Public License
	22	* along with this program; see the file COPYING. If not, write to
	23	* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
	24	*
	25	*
	26	* libata documentation is available via 'make {ps\|pdf}docs',
	27	* as Documentation/DocBook/libata.*
	28	*
	29	* AHCI hardware documentation:
	30	* http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
	31	* http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
	32	*
	33	*/
	34
	35	#ifndef _AHCI_H
	36	#define _AHCI_H
	37
	38	#include <linux/libata.h>
	39
	40	/* Enclosure Management Control */
	41	#define EM_CTRL_MSG_TYPE 0x000f0000
	42
	43	/* Enclosure Management LED Message Type */
	44	#define EM_MSG_LED_HBA_PORT 0x0000000f
	45	#define EM_MSG_LED_PMP_SLOT 0x0000ff00
	46	#define EM_MSG_LED_VALUE 0xffff0000
	47	#define EM_MSG_LED_VALUE_ACTIVITY 0x00070000
	48	#define EM_MSG_LED_VALUE_OFF 0xfff80000
	49	#define EM_MSG_LED_VALUE_ON 0x00010000
	50
	51	enum {
	52	AHCI_MAX_PORTS = 32,
	53	AHCI_MAX_SG = 168, /* hardware max is 64K */
	54	AHCI_DMA_BOUNDARY = 0xffffffff,
	55	AHCI_MAX_CMDS = 32,
	56	AHCI_CMD_SZ = 32,
	57	AHCI_CMD_SLOT_SZ = AHCI_MAX_CMDS * AHCI_CMD_SZ,
	58	AHCI_RX_FIS_SZ = 256,
	59	AHCI_CMD_TBL_CDB = 0x40,
	60	AHCI_CMD_TBL_HDR_SZ = 0x80,
	61	AHCI_CMD_TBL_SZ = AHCI_CMD_TBL_HDR_SZ + (AHCI_MAX_SG * 16),
	62	AHCI_CMD_TBL_AR_SZ = AHCI_CMD_TBL_SZ * AHCI_MAX_CMDS,
	63	AHCI_PORT_PRIV_DMA_SZ = AHCI_CMD_SLOT_SZ + AHCI_CMD_TBL_AR_SZ +
	64	AHCI_RX_FIS_SZ,
65	AHCI_PORT_PRIV_FBS_DMA_SZ = AHCI_CMD_SLOT_SZ +
66	AHCI_CMD_TBL_AR_SZ +
67	(AHCI_RX_FIS_SZ * 16),
68	AHCI_IRQ_ON_SG = (1 << 31),
69	AHCI_CMD_ATAPI = (1 << 5),
70	AHCI_CMD_WRITE = (1 << 6),
71	AHCI_CMD_PREFETCH = (1 << 7),
72	AHCI_CMD_RESET = (1 << 8),
73	AHCI_CMD_CLR_BUSY = (1 << 10),
74
75	RX_FIS_D2H_REG = 0x40, /* offset of D2H Register FIS data */
76	RX_FIS_SDB = 0x58, /* offset of SDB FIS data */
77	RX_FIS_UNK = 0x60, /* offset of Unknown FIS data */
78
79	/* global controller registers */
80	HOST_CAP = 0x00, /* host capabilities */
81	HOST_CTL = 0x04, /* global host control */
82	HOST_IRQ_STAT = 0x08, /* interrupt status */
83	HOST_PORTS_IMPL = 0x0c, /* bitmap of implemented ports */
84	HOST_VERSION = 0x10, /* AHCI spec. version compliancy */
85	HOST_EM_LOC = 0x1c, /* Enclosure Management location */
86	HOST_EM_CTL = 0x20, /* Enclosure Management Control */
87	HOST_CAP2 = 0x24, /* host capabilities, extended */
88
89	/* HOST_CTL bits */
90	HOST_RESET = (1 << 0), /* reset controller; self-clear */
91	HOST_IRQ_EN = (1 << 1), /* global IRQ enable */
92	HOST_AHCI_EN = (1 << 31), /* AHCI enabled */
93
94	/* HOST_CAP bits */
95	HOST_CAP_SXS = (1 << 5), /* Supports External SATA */
96	HOST_CAP_EMS = (1 << 6), /* Enclosure Management support */
97	HOST_CAP_CCC = (1 << 7), /* Command Completion Coalescing */
98	HOST_CAP_PART = (1 << 13), /* Partial state capable */
99	HOST_CAP_SSC = (1 << 14), /* Slumber state capable */
100	HOST_CAP_PIO_MULTI = (1 << 15), /* PIO multiple DRQ support */
101	HOST_CAP_FBS = (1 << 16), /* FIS-based switching support */
102	HOST_CAP_PMP = (1 << 17), /* Port Multiplier support */
103	HOST_CAP_ONLY = (1 << 18), /* Supports AHCI mode only */
104	HOST_CAP_CLO = (1 << 24), /* Command List Override support */
105	HOST_CAP_LED = (1 << 25), /* Supports activity LED */
106	HOST_CAP_ALPM = (1 << 26), /* Aggressive Link PM support */
107	HOST_CAP_SSS = (1 << 27), /* Staggered Spin-up */
108	HOST_CAP_MPS = (1 << 28), /* Mechanical presence switch */
109	HOST_CAP_SNTF = (1 << 29), /* SNotification register */
110	HOST_CAP_NCQ = (1 << 30), /* Native Command Queueing */
111	HOST_CAP_64 = (1 << 31), /* PCI DAC (64-bit DMA) support */
112
113	/* HOST_CAP2 bits */
114	HOST_CAP2_BOH = (1 << 0), /* BIOS/OS handoff supported */
115	HOST_CAP2_NVMHCI = (1 << 1), /* NVMHCI supported */
116	HOST_CAP2_APST = (1 << 2), /* Automatic partial to slumber */
117
118	/* registers for each SATA port */
119	PORT_LST_ADDR = 0x00, /* command list DMA addr */
120	PORT_LST_ADDR_HI = 0x04, /* command list DMA addr hi */
121	PORT_FIS_ADDR = 0x08, /* FIS rx buf addr */
122	PORT_FIS_ADDR_HI = 0x0c, /* FIS rx buf addr hi */
123	PORT_IRQ_STAT = 0x10, /* interrupt status */
124	PORT_IRQ_MASK = 0x14, /* interrupt enable/disable mask */
125	PORT_CMD = 0x18, /* port command */
126	PORT_TFDATA = 0x20, /* taskfile data */
127	PORT_SIG = 0x24, /* device TF signature */
128	PORT_CMD_ISSUE = 0x38, /* command issue */
129	PORT_SCR_STAT = 0x28, /* SATA phy register: SStatus */
130	PORT_SCR_CTL = 0x2c, /* SATA phy register: SControl */
131	PORT_SCR_ERR = 0x30, /* SATA phy register: SError */
132	PORT_SCR_ACT = 0x34, /* SATA phy register: SActive */
133	PORT_SCR_NTF = 0x3c, /* SATA phy register: SNotification */
134	PORT_FBS = 0x40, /* FIS-based Switching */
135
136	/* PORT_IRQ_{STAT,MASK} bits */
137	PORT_IRQ_COLD_PRES = (1 << 31), /* cold presence detect */
138	PORT_IRQ_TF_ERR = (1 << 30), /* task file error */
139	PORT_IRQ_HBUS_ERR = (1 << 29), /* host bus fatal error */
140	PORT_IRQ_HBUS_DATA_ERR = (1 << 28), /* host bus data error */
141	PORT_IRQ_IF_ERR = (1 << 27), /* interface fatal error */
142	PORT_IRQ_IF_NONFATAL = (1 << 26), /* interface non-fatal error */
143	PORT_IRQ_OVERFLOW = (1 << 24), /* xfer exhausted available S/G */
144	PORT_IRQ_BAD_PMP = (1 << 23), /* incorrect port multiplier */
145
146	PORT_IRQ_PHYRDY = (1 << 22), /* PhyRdy changed */
147	PORT_IRQ_DEV_ILCK = (1 << 7), /* device interlock */
148	PORT_IRQ_CONNECT = (1 << 6), /* port connect change status */
149	PORT_IRQ_SG_DONE = (1 << 5), /* descriptor processed */
150	PORT_IRQ_UNK_FIS = (1 << 4), /* unknown FIS rx'd */
151	PORT_IRQ_SDB_FIS = (1 << 3), /* Set Device Bits FIS rx'd */
152	PORT_IRQ_DMAS_FIS = (1 << 2), /* DMA Setup FIS rx'd */
153	PORT_IRQ_PIOS_FIS = (1 << 1), /* PIO Setup FIS rx'd */
154	PORT_IRQ_D2H_REG_FIS = (1 << 0), /* D2H Register FIS rx'd */
155
156	PORT_IRQ_FREEZE = PORT_IRQ_HBUS_ERR \|
157	PORT_IRQ_IF_ERR \|
158	PORT_IRQ_CONNECT \|
159	PORT_IRQ_PHYRDY \|
160	PORT_IRQ_UNK_FIS \|
161	PORT_IRQ_BAD_PMP,
162	PORT_IRQ_ERROR = PORT_IRQ_FREEZE \|
163	PORT_IRQ_TF_ERR \|
164	PORT_IRQ_HBUS_DATA_ERR,
165	DEF_PORT_IRQ = PORT_IRQ_ERROR \| PORT_IRQ_SG_DONE \|
166	PORT_IRQ_SDB_FIS \| PORT_IRQ_DMAS_FIS \|
167	PORT_IRQ_PIOS_FIS \| PORT_IRQ_D2H_REG_FIS,
168
169	/* PORT_CMD bits */
170	PORT_CMD_ASP = (1 << 27), /* Aggressive Slumber/Partial */
171	PORT_CMD_ALPE = (1 << 26), /* Aggressive Link PM enable */
172	PORT_CMD_ATAPI = (1 << 24), /* Device is ATAPI */
173	PORT_CMD_FBSCP = (1 << 22), /* FBS Capable Port */
174	PORT_CMD_PMP = (1 << 17), /* PMP attached */
175	PORT_CMD_LIST_ON = (1 << 15), /* cmd list DMA engine running */
176	PORT_CMD_FIS_ON = (1 << 14), /* FIS DMA engine running */
177	PORT_CMD_FIS_RX = (1 << 4), /* Enable FIS receive DMA engine */
178	PORT_CMD_CLO = (1 << 3), /* Command list override */
179	PORT_CMD_POWER_ON = (1 << 2), /* Power up device */
180	PORT_CMD_SPIN_UP = (1 << 1), /* Spin up device */
181	PORT_CMD_START = (1 << 0), /* Enable port DMA engine */
182
183	PORT_CMD_ICC_MASK = (0xf << 28), /* i/f ICC state mask */
184	PORT_CMD_ICC_ACTIVE = (0x1 << 28), /* Put i/f in active state */
185	PORT_CMD_ICC_PARTIAL = (0x2 << 28), /* Put i/f in partial state */
186	PORT_CMD_ICC_SLUMBER = (0x6 << 28), /* Put i/f in slumber state */
187
188	PORT_FBS_DWE_OFFSET = 16, /* FBS device with error offset */
189	PORT_FBS_ADO_OFFSET = 12, /* FBS active dev optimization offset */
190	PORT_FBS_DEV_OFFSET = 8, /* FBS device to issue offset */
191	PORT_FBS_DEV_MASK = (0xf << PORT_FBS_DEV_OFFSET), /* FBS.DEV */
192	PORT_FBS_SDE = (1 << 2), /* FBS single device error */
193	PORT_FBS_DEC = (1 << 1), /* FBS device error clear */
194	PORT_FBS_EN = (1 << 0), /* Enable FBS */
195
196	/* hpriv->flags bits */
197	AHCI_HFLAG_NO_NCQ = (1 << 0),
198	AHCI_HFLAG_IGN_IRQ_IF_ERR = (1 << 1), /* ignore IRQ_IF_ERR */
199	AHCI_HFLAG_IGN_SERR_INTERNAL = (1 << 2), /* ignore SERR_INTERNAL */
200	AHCI_HFLAG_32BIT_ONLY = (1 << 3), /* force 32bit */
201	AHCI_HFLAG_MV_PATA = (1 << 4), /* PATA port */
202	AHCI_HFLAG_NO_MSI = (1 << 5), /* no PCI MSI */
203	AHCI_HFLAG_NO_PMP = (1 << 6), /* no PMP */
204	AHCI_HFLAG_NO_HOTPLUG = (1 << 7), /* ignore PxSERR.DIAG.N */
205	AHCI_HFLAG_SECT255 = (1 << 8), /* max 255 sectors */
206	AHCI_HFLAG_YES_NCQ = (1 << 9), /* force NCQ cap on */
207	AHCI_HFLAG_NO_SUSPEND = (1 << 10), /* don't suspend */
208	AHCI_HFLAG_SRST_TOUT_IS_OFFLINE = (1 << 11), /* treat SRST timeout as
209	link offline */
210	AHCI_HFLAG_NO_SNTF = (1 << 12), /* no sntf */
83f2b963	211	AHCI_HFLAG_NO_FPDMA_AA = (1 << 13), /* no FPDMA AA */
5f173107	212	AHCI_HFLAG_YES_FBS = (1 << 14), /* force FBS cap on */
365cfa1e AV	213
	214	/* ap->flags bits */
	215
	216	AHCI_FLAG_COMMON = ATA_FLAG_SATA \| ATA_FLAG_NO_LEGACY \|
	217	ATA_FLAG_MMIO \| ATA_FLAG_PIO_DMA \|
	218	ATA_FLAG_ACPI_SATA \| ATA_FLAG_AN \|
	219	ATA_FLAG_IPM,
	220
	221	ICH_MAP = 0x90, /* ICH MAP register */
	222
	223	/* em constants */
	224	EM_MAX_SLOTS = 8,
	225	EM_MAX_RETRY = 5,
	226
	227	/* em_ctl bits */
c0623166 HZ	228	EM_CTL_RST = (1 << 9), /* Reset */
	229	EM_CTL_TM = (1 << 8), /* Transmit Message */
	230	EM_CTL_MR = (1 << 0), /* Message Recieved */
	231	EM_CTL_ALHD = (1 << 26), /* Activity LED */
	232	EM_CTL_XMT = (1 << 25), /* Transmit Only */
	233	EM_CTL_SMB = (1 << 24), /* Single Message Buffer */
008dbd61 HZ	234
	235	/* em message type */
	236	EM_MSG_TYPE_LED = (1 << 0), /* LED */
	237	EM_MSG_TYPE_SAFTE = (1 << 1), /* SAF-TE */
	238	EM_MSG_TYPE_SES2 = (1 << 2), /* SES-2 */
	239	EM_MSG_TYPE_SGPIO = (1 << 3), /* SGPIO */
365cfa1e AV	240	};
	241
	242	struct ahci_cmd_hdr {
	243	__le32 opts;
	244	__le32 status;
	245	__le32 tbl_addr;
	246	__le32 tbl_addr_hi;
	247	__le32 reserved[4];
	248	};
	249
	250	struct ahci_sg {
	251	__le32 addr;
	252	__le32 addr_hi;
	253	__le32 reserved;
	254	__le32 flags_size;
	255	};
	256
	257	struct ahci_em_priv {
	258	enum sw_activity blink_policy;
	259	struct timer_list timer;
	260	unsigned long saved_activity;
	261	unsigned long activity;
	262	unsigned long led_state;
	263	};
	264
	265	struct ahci_port_priv {
	266	struct ata_link *active_link;
	267	struct ahci_cmd_hdr *cmd_slot;
	268	dma_addr_t cmd_slot_dma;
	269	void *cmd_tbl;
	270	dma_addr_t cmd_tbl_dma;
	271	void *rx_fis;
	272	dma_addr_t rx_fis_dma;
	273	/* for NCQ spurious interrupt analysis */
	274	unsigned int ncq_saw_d2h:1;
	275	unsigned int ncq_saw_dmas:1;
	276	unsigned int ncq_saw_sdb:1;
	277	u32 intr_mask; /* interrupts to enable */
	278	bool fbs_supported; /* set iff FBS is supported */
	279	bool fbs_enabled; /* set iff FBS is enabled */
	280	int fbs_last_dev; /* save FBS.DEV of last FIS */
	281	/* enclosure management info per PM slot */
	282	struct ahci_em_priv em_priv[EM_MAX_SLOTS];
	283	};
	284
	285	struct ahci_host_priv {
	286	void __iomem * mmio; /* bus-independant mem map */
	287	unsigned int flags; /* AHCI_HFLAG_* */
	288	u32 cap; /* cap to use */
	289	u32 cap2; /* cap2 to use */
	290	u32 port_map; /* port map to use */
	291	u32 saved_cap; /* saved initial cap */
	292	u32 saved_cap2; /* saved initial cap2 */
	293	u32 saved_port_map; /* saved initial port_map */
	294	u32 em_loc; /* enclosure management location */
c0623166	295	u32 em_buf_sz; /* EM buffer size in byte */
008dbd61	296	u32 em_msg_type; /* EM message type */
365cfa1e AV	297	};
365cfa1e AV	298
365cfa1e AV	299	extern int ahci_ignore_sss;
365cfa1e AV	300
fad16e7a TH	301	extern struct device_attribute *ahci_shost_attrs[];
	302	extern struct device_attribute *ahci_sdev_attrs[];
	303
	304	#define AHCI_SHT(drv_name) \
	305	ATA_NCQ_SHT(drv_name), \
	306	.can_queue = AHCI_MAX_CMDS - 1, \
	307	.sg_tablesize = AHCI_MAX_SG, \
	308	.dma_boundary = AHCI_DMA_BOUNDARY, \
	309	.shost_attrs = ahci_shost_attrs, \
	310	.sdev_attrs = ahci_sdev_attrs
	311
365cfa1e AV	312	extern struct ata_port_operations ahci_ops;
	313
	314	void ahci_save_initial_config(struct device *dev,
	315	struct ahci_host_priv *hpriv,
	316	unsigned int force_port_map,
	317	unsigned int mask_port_map);
	318	void ahci_init_controller(struct ata_host *host);
	319	int ahci_reset_controller(struct ata_host *host);
	320
	321	int ahci_do_softreset(struct ata_link link, unsigned int class,
	322	int pmp, unsigned long deadline,
	323	int (check_ready)(struct ata_link link));
	324
	325	int ahci_stop_engine(struct ata_port *ap);
	326	void ahci_start_engine(struct ata_port *ap);
	327	int ahci_check_ready(struct ata_link *link);
	328	int ahci_kick_engine(struct ata_port *ap);
	329	void ahci_set_em_messages(struct ahci_host_priv *hpriv,
	330	struct ata_port_info *pi);
	331	int ahci_reset_em(struct ata_host *host);
	332	irqreturn_t ahci_interrupt(int irq, void *dev_instance);
	333	void ahci_print_info(struct ata_host host, const char scc_s);
	334
	335	static inline void __iomem __ahci_port_base(struct ata_host host,
	336	unsigned int port_no)
	337	{
	338	struct ahci_host_priv *hpriv = host->private_data;
	339	void __iomem *mmio = hpriv->mmio;
	340
	341	return mmio + 0x100 + (port_no * 0x80);
	342	}
	343
	344	static inline void __iomem ahci_port_base(struct ata_port ap)
	345	{
	346	return __ahci_port_base(ap->host, ap->port_no);
	347	}
	348
	349	static inline int ahci_nr_ports(u32 cap)
	350	{
	351	return (cap & 0x1f) + 1;
	352	}
	353
	354	#endif /* _AHCI_H */