xbow.h

linux-2.4.29操作系统的源码

#define	XB_LINK_AUX_STATUS(x)	(XB_LINK_REG_BASE(x) + 0x3c)

/* link_control(x) */
#define	XB_CTRL_LINKALIVE_IE		0x80000000	/* link comes alive */
     /* reserved:			0x40000000 */
#define	XB_CTRL_PERF_CTR_MODE_MSK	0x30000000	/* perf counter mode */
#define	XB_CTRL_IBUF_LEVEL_MSK		0x0e000000	/* input packet buffer level */
#define	XB_CTRL_8BIT_MODE		0x01000000	/* force link into 8 bit mode */
#define XB_CTRL_BAD_LLP_PKT		0x00800000	/* force bad LLP packet */
#define XB_CTRL_WIDGET_CR_MSK		0x007c0000	/* LLP widget credit mask */
#define XB_CTRL_WIDGET_CR_SHFT	18			/* LLP widget credit shift */
#define XB_CTRL_ILLEGAL_DST_IE		0x00020000	/* illegal destination */
#define XB_CTRL_OALLOC_IBUF_IE		0x00010000	/* overallocated input buffer */
     /* reserved:			0x0000fe00 */
#define XB_CTRL_BNDWDTH_ALLOC_IE	0x00000100	/* bandwidth alloc */
#define XB_CTRL_RCV_CNT_OFLOW_IE	0x00000080	/* rcv retry overflow */
#define XB_CTRL_XMT_CNT_OFLOW_IE	0x00000040	/* xmt retry overflow */
#define XB_CTRL_XMT_MAX_RTRY_IE		0x00000020	/* max transmit retry */
#define XB_CTRL_RCV_IE			0x00000010	/* receive */
#define XB_CTRL_XMT_RTRY_IE		0x00000008	/* transmit retry */
     /* reserved:			0x00000004 */
#define	XB_CTRL_MAXREQ_TOUT_IE		0x00000002	/* maximum request timeout */
#define	XB_CTRL_SRC_TOUT_IE		0x00000001	/* source timeout */

/* link_status(x) */
#define	XB_STAT_LINKALIVE		XB_CTRL_LINKALIVE_IE
     /* reserved:			0x7ff80000 */
#define	XB_STAT_MULTI_ERR		0x00040000	/* multi error */
#define	XB_STAT_ILLEGAL_DST_ERR		XB_CTRL_ILLEGAL_DST_IE
#define	XB_STAT_OALLOC_IBUF_ERR		XB_CTRL_OALLOC_IBUF_IE
#define	XB_STAT_BNDWDTH_ALLOC_ID_MSK	0x0000ff00	/* port bitmask */
#define	XB_STAT_RCV_CNT_OFLOW_ERR	XB_CTRL_RCV_CNT_OFLOW_IE
#define	XB_STAT_XMT_CNT_OFLOW_ERR	XB_CTRL_XMT_CNT_OFLOW_IE
#define	XB_STAT_XMT_MAX_RTRY_ERR	XB_CTRL_XMT_MAX_RTRY_IE
#define	XB_STAT_RCV_ERR			XB_CTRL_RCV_IE
#define	XB_STAT_XMT_RTRY_ERR		XB_CTRL_XMT_RTRY_IE
     /* reserved:			0x00000004 */
#define	XB_STAT_MAXREQ_TOUT_ERR		XB_CTRL_MAXREQ_TOUT_IE
#define	XB_STAT_SRC_TOUT_ERR		XB_CTRL_SRC_TOUT_IE

/* link_aux_status(x) */
#define	XB_AUX_STAT_RCV_CNT	0xff000000
#define	XB_AUX_STAT_XMT_CNT	0x00ff0000
#define	XB_AUX_STAT_TOUT_DST	0x0000ff00
#define	XB_AUX_LINKFAIL_RST_BAD	0x00000040
#define	XB_AUX_STAT_PRESENT	0x00000020
#define	XB_AUX_STAT_PORT_WIDTH	0x00000010
     /*	reserved:		0x0000000f */

/*
 * link_arb_upper/link_arb_lower(x), (reg) should be the link_arb_upper
 * register if (x) is 0x8..0xb, link_arb_lower if (x) is 0xc..0xf
 */
#define	XB_ARB_GBR_MSK		0x1f
#define	XB_ARB_RR_MSK		0x7
#define	XB_ARB_GBR_SHFT(x)	(((x) & 0x3) * 8)
#define	XB_ARB_RR_SHFT(x)	(((x) & 0x3) * 8 + 5)
#define	XB_ARB_GBR_CNT(reg,x)	((reg) >> XB_ARB_GBR_SHFT(x) & XB_ARB_GBR_MSK)
#define	XB_ARB_RR_CNT(reg,x)	((reg) >> XB_ARB_RR_SHFT(x) & XB_ARB_RR_MSK)

/* XBOW_WID_STAT */
#define	XB_WID_STAT_LINK_INTR_SHFT	(24)
#define	XB_WID_STAT_LINK_INTR_MASK	(0xFF << XB_WID_STAT_LINK_INTR_SHFT)
#define	XB_WID_STAT_LINK_INTR(x)	(0x1 << (((x)&7) + XB_WID_STAT_LINK_INTR_SHFT))
#define	XB_WID_STAT_WIDGET0_INTR	0x00800000
#define XB_WID_STAT_SRCID_MASK		0x000003c0	/* Xbridge only */
#define	XB_WID_STAT_REG_ACC_ERR		0x00000020
#define XB_WID_STAT_RECV_TOUT		0x00000010	/* Xbridge only */
#define XB_WID_STAT_ARB_TOUT		0x00000008	/* Xbridge only */
#define	XB_WID_STAT_XTALK_ERR		0x00000004
#define XB_WID_STAT_DST_TOUT		0x00000002	/* Xbridge only */
#define	XB_WID_STAT_MULTI_ERR		0x00000001

#define XB_WID_STAT_SRCID_SHFT		6

/* XBOW_WID_CONTROL */
#define XB_WID_CTRL_REG_ACC_IE		XB_WID_STAT_REG_ACC_ERR
#define XB_WID_CTRL_RECV_TOUT		XB_WID_STAT_RECV_TOUT
#define XB_WID_CTRL_ARB_TOUT		XB_WID_STAT_ARB_TOUT
#define XB_WID_CTRL_XTALK_IE		XB_WID_STAT_XTALK_ERR

/* XBOW_WID_INT_UPPER */
/* defined in xwidget.h for WIDGET_INTDEST_UPPER_ADDR */

/* XBOW WIDGET part number, in the ID register */
#define XBOW_WIDGET_PART_NUM	0x0		/* crossbow */
#define XXBOW_WIDGET_PART_NUM	0xd000		/* Xbridge */
#define	XBOW_WIDGET_MFGR_NUM	0x0
#define	XXBOW_WIDGET_MFGR_NUM	0x0
#define PXBOW_WIDGET_PART_NUM   0xd100          /* PIC */

#define	XBOW_REV_1_0		0x1	/* xbow rev 1.0 is "1" */
#define	XBOW_REV_1_1		0x2	/* xbow rev 1.1 is "2" */
#define XBOW_REV_1_2		0x3	/* xbow rev 1.2 is "3" */
#define XBOW_REV_1_3		0x4	/* xbow rev 1.3 is "4" */
#define XBOW_REV_2_0		0x5	/* xbow rev 2.0 is "5" */

#define XXBOW_PART_REV_1_0		(XXBOW_WIDGET_PART_NUM << 4 | 0x1 )
#define XXBOW_PART_REV_2_0		(XXBOW_WIDGET_PART_NUM << 4 | 0x2 )

/* XBOW_WID_ARB_RELOAD */
#define	XBOW_WID_ARB_RELOAD_INT	0x3f	/* GBR reload interval */

#define IS_XBRIDGE_XBOW(wid) \
        (XWIDGET_PART_NUM(wid) == XXBOW_WIDGET_PART_NUM && \
                        XWIDGET_MFG_NUM(wid) == XXBOW_WIDGET_MFGR_NUM)

#define IS_PIC_XBOW(wid) \
        (XWIDGET_PART_NUM(wid) == PXBOW_WIDGET_PART_NUM && \
                        XWIDGET_MFG_NUM(wid) == XXBOW_WIDGET_MFGR_NUM)

#define XBOW_WAR_ENABLED(pv, widid) ((1 << XWIDGET_REV_NUM(widid)) & pv)
#define PV854827 (~0)     /* PIC: fake widget 0xf presence bit. permanent */
#define PV863579 (1 << 1) /* PIC: PIO to PIC register */


#ifndef __ASSEMBLY__
/*
 * XBOW Widget 0 Register formats.
 * Format for many of these registers are similar to the standard
 * widget register format described as part of xtalk specification
 * Standard widget register field format description is available in
 * xwidget.h
 * Following structures define the format for xbow widget 0 registers
 */
/*
 * Xbow Widget 0 Command error word
 */
#ifdef LITTLE_ENDIAN

typedef union xbw0_cmdword_u {
    xbowreg_t               cmdword;
    struct {
	uint32_t              rsvd:8,		/* Reserved */
                                barr:1,         /* Barrier operation */
                                error:1,        /* Error Occured */
                                vbpm:1,         /* Virtual Backplane message */
                                gbr:1,  /* GBR enable ?                 */
                                ds:2,   /* Data size                    */
                                ct:1,   /* Is it a coherent transaction */
                                tnum:5,         /* Transaction Number */
                                pactyp:4,       /* Packet type: */
                                srcid:4,        /* Source ID number */
                                destid:4;       /* Desination ID number */

    } xbw0_cmdfield;
} xbw0_cmdword_t;

#else

typedef union xbw0_cmdword_u {
    xbowreg_t		    cmdword;
    struct {
	uint32_t		destid:4,	/* Desination ID number */
				srcid:4,	/* Source ID number */
				pactyp:4,	/* Packet type: */
				tnum:5,		/* Transaction Number */
				ct:1,	/* Is it a coherent transaction */
				ds:2,	/* Data size			*/
				gbr:1,	/* GBR enable ?			*/
				vbpm:1,		/* Virtual Backplane message */
				error:1,	/* Error Occured */
				barr:1,		/* Barrier operation */
				rsvd:8;		/* Reserved */
    } xbw0_cmdfield;
} xbw0_cmdword_t;

#endif

#define	xbcmd_destid	xbw0_cmdfield.destid
#define	xbcmd_srcid	xbw0_cmdfield.srcid
#define	xbcmd_pactyp	xbw0_cmdfield.pactyp
#define	xbcmd_tnum	xbw0_cmdfield.tnum
#define	xbcmd_ct	xbw0_cmdfield.ct
#define	xbcmd_ds	xbw0_cmdfield.ds
#define	xbcmd_gbr	xbw0_cmdfield.gbr
#define	xbcmd_vbpm	xbw0_cmdfield.vbpm
#define	xbcmd_error	xbw0_cmdfield.error
#define	xbcmd_barr	xbw0_cmdfield.barr

/*
 * Values for field PACTYP in xbow error command word
 */
#define	XBCMDTYP_READREQ	0	/* Read Request   packet  */
#define	XBCMDTYP_READRESP	1	/* Read Response packet   */
#define	XBCMDTYP_WRREQ_RESP	2	/* Write Request with response    */
#define	XBCMDTYP_WRRESP		3	/* Write Response */
#define	XBCMDTYP_WRREQ_NORESP	4	/* Write request with  No Response */
#define	XBCMDTYP_FETCHOP	6	/* Fetch & Op packet      */
#define	XBCMDTYP_STOREOP	8	/* Store & Op packet      */
#define	XBCMDTYP_SPLPKT_REQ	0xE	/* Special packet request */
#define	XBCMDTYP_SPLPKT_RESP	0xF	/* Special packet response        */

/*
 * Values for field ds (datasize) in xbow error command word
 */
#define	XBCMDSZ_DOUBLEWORD	0
#define	XBCMDSZ_QUARTRCACHE	1
#define	XBCMDSZ_FULLCACHE	2

/*
 * Xbow widget 0 Status register format.
 */
#ifdef LITTLE_ENDIAN

typedef union xbw0_status_u {
    xbowreg_t               statusword;
    struct {
       uint32_t		mult_err:1,	/* Multiple error occurred */
                                connect_tout:1, /* Connection timeout   */
                                xtalk_err:1,    /* Xtalk pkt with error bit */
                                /* End of Xbridge only */
                                w0_arb_tout,    /* arbiter timeout err */
                                w0_recv_tout,   /* receive timeout err */
                                /* Xbridge only */
                                regacc_err:1,   /* Reg Access error     */
                                src_id:4,       /* source id. Xbridge only */
                                resvd1:13,
                                wid0intr:1;     /* Widget 0 err intr */
    } xbw0_stfield;
} xbw0_status_t;

#else

typedef union xbw0_status_u {
    xbowreg_t		    statusword;
    struct {
	uint32_t		linkXintr:8,	/* link(x) error intr */
				wid0intr:1,	/* Widget 0 err intr */
				resvd1:13,
				src_id:4,	/* source id. Xbridge only */
				regacc_err:1,	/* Reg Access error	*/
				/* Xbridge only */
				w0_recv_tout,	/* receive timeout err */
				w0_arb_tout,	/* arbiter timeout err */
				/* End of Xbridge only */
				xtalk_err:1,	/* Xtalk pkt with error bit */
				connect_tout:1, /* Connection timeout	*/
				mult_err:1;	/* Multiple error occurred */
    } xbw0_stfield;
} xbw0_status_t;

#endif

#define	xbst_linkXintr		xbw0_stfield.linkXintr
#define	xbst_w0intr		xbw0_stfield.wid0intr
#define	xbst_regacc_err		xbw0_stfield.regacc_err
#define	xbst_xtalk_err		xbw0_stfield.xtalk_err
#define	xbst_connect_tout	xbw0_stfield.connect_tout
#define	xbst_mult_err		xbw0_stfield.mult_err
#define xbst_src_id		xbw0_stfield.src_id	    /* Xbridge only */
#define xbst_w0_recv_tout	xbw0_stfield.w0_recv_tout   /* Xbridge only */
#define xbst_w0_arb_tout	xbw0_stfield.w0_arb_tout    /* Xbridge only */

/*
 * Xbow widget 0 Control register format
 */
#ifdef LITTLE_ENDIAN

typedef union xbw0_ctrl_u {
    xbowreg_t               ctrlword;
    struct {
	uint32_t              
				resvd3:1,
                                conntout_intr:1,
                                xtalkerr_intr:1,
                                w0_arg_tout_intr:1,     /* Xbridge only */
                                w0_recv_tout_intr:1,    /* Xbridge only */
                                accerr_intr:1,
                                enable_w0_tout_cntr:1,  /* Xbridge only */
                                enable_watchdog:1,      /* Xbridge only */
                                resvd1:24;
    } xbw0_ctrlfield;
} xbw0_ctrl_t;

#else

typedef union xbw0_ctrl_u {
    xbowreg_t		    ctrlword;
    struct {
	uint32_t
				resvd1:24,
				enable_watchdog:1,	/* Xbridge only */
				enable_w0_tout_cntr:1,	/* Xbridge only */
				accerr_intr:1,
				w0_recv_tout_intr:1,	/* Xbridge only */
				w0_arg_tout_intr:1,	/* Xbridge only */
				xtalkerr_intr:1,
				conntout_intr:1,
				resvd3:1;
    } xbw0_ctrlfield;
} xbw0_ctrl_t;

#endif

#ifdef LITTLE_ENDIAN

typedef union xbow_linkctrl_u {
    xbowreg_t               xbl_ctrlword;
    struct {
	uint32_t 		srcto_intr:1,
                                maxto_intr:1, 
                                rsvd3:1,
                                trx_retry_intr:1,