diff options
Diffstat (limited to 'arch/mips/include/asm/sn/sn0/hubio.h')
| -rw-r--r-- | arch/mips/include/asm/sn/sn0/hubio.h | 972 |
1 files changed, 972 insertions, 0 deletions
diff --git a/arch/mips/include/asm/sn/sn0/hubio.h b/arch/mips/include/asm/sn/sn0/hubio.h new file mode 100644 index 000000000..57ece90f8 --- /dev/null +++ b/arch/mips/include/asm/sn/sn0/hubio.h @@ -0,0 +1,972 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Derived from IRIX <sys/SN/SN0/hubio.h>, Revision 1.80. + * + * Copyright (C) 1992 - 1997, 1999 Silicon Graphics, Inc. + * Copyright (C) 1999 by Ralf Baechle + */ +#ifndef _ASM_SGI_SN_SN0_HUBIO_H +#define _ASM_SGI_SN_SN0_HUBIO_H + +/* + * Hub I/O interface registers + * + * All registers in this file are subject to change until Hub chip tapeout. + * In general, the longer software name should be used when available. + */ + +/* + * Slightly friendlier names for some common registers. + * The hardware definitions follow. + */ +#define IIO_WIDGET IIO_WID /* Widget identification */ +#define IIO_WIDGET_STAT IIO_WSTAT /* Widget status register */ +#define IIO_WIDGET_CTRL IIO_WCR /* Widget control register */ +#define IIO_WIDGET_TOUT IIO_WRTO /* Widget request timeout */ +#define IIO_WIDGET_FLUSH IIO_WTFR /* Widget target flush */ +#define IIO_PROTECT IIO_ILAPR /* IO interface protection */ +#define IIO_PROTECT_OVRRD IIO_ILAPO /* IO protect override */ +#define IIO_OUTWIDGET_ACCESS IIO_IOWA /* Outbound widget access */ +#define IIO_INWIDGET_ACCESS IIO_IIWA /* Inbound widget access */ +#define IIO_INDEV_ERR_MASK IIO_IIDEM /* Inbound device error mask */ +#define IIO_LLP_CSR IIO_ILCSR /* LLP control and status */ +#define IIO_LLP_LOG IIO_ILLR /* LLP log */ +#define IIO_XTALKCC_TOUT IIO_IXCC /* Xtalk credit count timeout*/ +#define IIO_XTALKTT_TOUT IIO_IXTT /* Xtalk tail timeout */ +#define IIO_IO_ERR_CLR IIO_IECLR /* IO error clear */ +#define IIO_BTE_CRB_CNT IIO_IBCN /* IO BTE CRB count */ + +#define IIO_LLP_CSR_IS_UP 0x00002000 +#define IIO_LLP_CSR_LLP_STAT_MASK 0x00003000 +#define IIO_LLP_CSR_LLP_STAT_SHFT 12 + +/* key to IIO_PROTECT_OVRRD */ +#define IIO_PROTECT_OVRRD_KEY 0x53474972756c6573ull /* "SGIrules" */ + +/* BTE register names */ +#define IIO_BTE_STAT_0 IIO_IBLS_0 /* Also BTE length/status 0 */ +#define IIO_BTE_SRC_0 IIO_IBSA_0 /* Also BTE source address 0 */ +#define IIO_BTE_DEST_0 IIO_IBDA_0 /* Also BTE dest. address 0 */ +#define IIO_BTE_CTRL_0 IIO_IBCT_0 /* Also BTE control/terminate 0 */ +#define IIO_BTE_NOTIFY_0 IIO_IBNA_0 /* Also BTE notification 0 */ +#define IIO_BTE_INT_0 IIO_IBIA_0 /* Also BTE interrupt 0 */ +#define IIO_BTE_OFF_0 0 /* Base offset from BTE 0 regs. */ +#define IIO_BTE_OFF_1 IIO_IBLS_1 - IIO_IBLS_0 /* Offset from base to BTE 1 */ + +/* BTE register offsets from base */ +#define BTEOFF_STAT 0 +#define BTEOFF_SRC (IIO_BTE_SRC_0 - IIO_BTE_STAT_0) +#define BTEOFF_DEST (IIO_BTE_DEST_0 - IIO_BTE_STAT_0) +#define BTEOFF_CTRL (IIO_BTE_CTRL_0 - IIO_BTE_STAT_0) +#define BTEOFF_NOTIFY (IIO_BTE_NOTIFY_0 - IIO_BTE_STAT_0) +#define BTEOFF_INT (IIO_BTE_INT_0 - IIO_BTE_STAT_0) + + +/* + * The following definitions use the names defined in the IO interface + * document for ease of reference. When possible, software should + * generally use the longer but clearer names defined above. + */ + +#define IIO_BASE 0x400000 +#define IIO_BASE_BTE0 0x410000 +#define IIO_BASE_BTE1 0x420000 +#define IIO_BASE_PERF 0x430000 +#define IIO_PERF_CNT 0x430008 + +#define IO_PERF_SETS 32 + +#define IIO_WID 0x400000 /* Widget identification */ +#define IIO_WSTAT 0x400008 /* Widget status */ +#define IIO_WCR 0x400020 /* Widget control */ + +#define IIO_WSTAT_ECRAZY (1ULL << 32) /* Hub gone crazy */ +#define IIO_WSTAT_TXRETRY (1ULL << 9) /* Hub Tx Retry timeout */ +#define IIO_WSTAT_TXRETRY_MASK (0x7F) +#define IIO_WSTAT_TXRETRY_SHFT (16) +#define IIO_WSTAT_TXRETRY_CNT(w) (((w) >> IIO_WSTAT_TXRETRY_SHFT) & \ + IIO_WSTAT_TXRETRY_MASK) + +#define IIO_ILAPR 0x400100 /* Local Access Protection */ +#define IIO_ILAPO 0x400108 /* Protection override */ +#define IIO_IOWA 0x400110 /* outbound widget access */ +#define IIO_IIWA 0x400118 /* inbound widget access */ +#define IIO_IIDEM 0x400120 /* Inbound Device Error Mask */ +#define IIO_ILCSR 0x400128 /* LLP control and status */ +#define IIO_ILLR 0x400130 /* LLP Log */ +#define IIO_IIDSR 0x400138 /* Interrupt destination */ + +#define IIO_IIBUSERR 0x1400208 /* Reads here cause a bus error. */ + +/* IO Interrupt Destination Register */ +#define IIO_IIDSR_SENT_SHIFT 28 +#define IIO_IIDSR_SENT_MASK 0x10000000 +#define IIO_IIDSR_ENB_SHIFT 24 +#define IIO_IIDSR_ENB_MASK 0x01000000 +#define IIO_IIDSR_NODE_SHIFT 8 +#define IIO_IIDSR_NODE_MASK 0x0000ff00 +#define IIO_IIDSR_LVL_SHIFT 0 +#define IIO_IIDSR_LVL_MASK 0x0000003f + + +/* GFX Flow Control Node/Widget Register */ +#define IIO_IGFX_0 0x400140 /* gfx node/widget register 0 */ +#define IIO_IGFX_1 0x400148 /* gfx node/widget register 1 */ +#define IIO_IGFX_W_NUM_BITS 4 /* size of widget num field */ +#define IIO_IGFX_W_NUM_MASK ((1<<IIO_IGFX_W_NUM_BITS)-1) +#define IIO_IGFX_W_NUM_SHIFT 0 +#define IIO_IGFX_N_NUM_BITS 9 /* size of node num field */ +#define IIO_IGFX_N_NUM_MASK ((1<<IIO_IGFX_N_NUM_BITS)-1) +#define IIO_IGFX_N_NUM_SHIFT 4 +#define IIO_IGFX_P_NUM_BITS 1 /* size of processor num field */ +#define IIO_IGFX_P_NUM_MASK ((1<<IIO_IGFX_P_NUM_BITS)-1) +#define IIO_IGFX_P_NUM_SHIFT 16 +#define IIO_IGFX_VLD_BITS 1 /* size of valid field */ +#define IIO_IGFX_VLD_MASK ((1<<IIO_IGFX_VLD_BITS)-1) +#define IIO_IGFX_VLD_SHIFT 20 +#define IIO_IGFX_INIT(widget, node, cpu, valid) (\ + (((widget) & IIO_IGFX_W_NUM_MASK) << IIO_IGFX_W_NUM_SHIFT) | \ + (((node) & IIO_IGFX_N_NUM_MASK) << IIO_IGFX_N_NUM_SHIFT) | \ + (((cpu) & IIO_IGFX_P_NUM_MASK) << IIO_IGFX_P_NUM_SHIFT) | \ + (((valid) & IIO_IGFX_VLD_MASK) << IIO_IGFX_VLD_SHIFT) ) + +/* Scratch registers (not all bits available) */ +#define IIO_SCRATCH_REG0 0x400150 +#define IIO_SCRATCH_REG1 0x400158 +#define IIO_SCRATCH_MASK 0x0000000f00f11fff + +#define IIO_SCRATCH_BIT0_0 0x0000000800000000 +#define IIO_SCRATCH_BIT0_1 0x0000000400000000 +#define IIO_SCRATCH_BIT0_2 0x0000000200000000 +#define IIO_SCRATCH_BIT0_3 0x0000000100000000 +#define IIO_SCRATCH_BIT0_4 0x0000000000800000 +#define IIO_SCRATCH_BIT0_5 0x0000000000400000 +#define IIO_SCRATCH_BIT0_6 0x0000000000200000 +#define IIO_SCRATCH_BIT0_7 0x0000000000100000 +#define IIO_SCRATCH_BIT0_8 0x0000000000010000 +#define IIO_SCRATCH_BIT0_9 0x0000000000001000 +#define IIO_SCRATCH_BIT0_R 0x0000000000000fff + +/* IO Translation Table Entries */ +#define IIO_NUM_ITTES 7 /* ITTEs numbered 0..6 */ + /* Hw manuals number them 1..7! */ + +/* + * As a permanent workaround for a bug in the PI side of the hub, we've + * redefined big window 7 as small window 0. + */ +#define HUB_NUM_BIG_WINDOW IIO_NUM_ITTES - 1 + +/* + * Use the top big window as a surrogate for the first small window + */ +#define SWIN0_BIGWIN HUB_NUM_BIG_WINDOW + +#define ILCSR_WARM_RESET 0x100 +/* + * The IO LLP control status register and widget control register + */ +#ifndef __ASSEMBLY__ + +typedef union hubii_wid_u { + u64 wid_reg_value; + struct { + u64 wid_rsvd: 32, /* unused */ + wid_rev_num: 4, /* revision number */ + wid_part_num: 16, /* the widget type: hub=c101 */ + wid_mfg_num: 11, /* Manufacturer id (IBM) */ + wid_rsvd1: 1; /* Reserved */ + } wid_fields_s; +} hubii_wid_t; + + +typedef union hubii_wcr_u { + u64 wcr_reg_value; + struct { + u64 wcr_rsvd: 41, /* unused */ + wcr_e_thresh: 5, /* elasticity threshold */ + wcr_dir_con: 1, /* widget direct connect */ + wcr_f_bad_pkt: 1, /* Force bad llp pkt enable */ + wcr_xbar_crd: 3, /* LLP crossbar credit */ + wcr_rsvd1: 8, /* Reserved */ + wcr_tag_mode: 1, /* Tag mode */ + wcr_widget_id: 4; /* LLP crossbar credit */ + } wcr_fields_s; +} hubii_wcr_t; + +#define iwcr_dir_con wcr_fields_s.wcr_dir_con + +typedef union hubii_wstat_u { + u64 reg_value; + struct { + u64 rsvd1: 31, + crazy: 1, /* Crazy bit */ + rsvd2: 8, + llp_tx_cnt: 8, /* LLP Xmit retry counter */ + rsvd3: 6, + tx_max_rtry: 1, /* LLP Retry Timeout Signal */ + rsvd4: 2, + xt_tail_to: 1, /* Xtalk Tail Timeout */ + xt_crd_to: 1, /* Xtalk Credit Timeout */ + pending: 4; /* Pending Requests */ + } wstat_fields_s; +} hubii_wstat_t; + + +typedef union hubii_ilcsr_u { + u64 icsr_reg_value; + struct { + u64 icsr_rsvd: 22, /* unused */ + icsr_max_burst: 10, /* max burst */ + icsr_rsvd4: 6, /* reserved */ + icsr_max_retry: 10, /* max retry */ + icsr_rsvd3: 2, /* reserved */ + icsr_lnk_stat: 2, /* link status */ + icsr_bm8: 1, /* Bit mode 8 */ + icsr_llp_en: 1, /* LLP enable bit */ + icsr_rsvd2: 1, /* reserver */ + icsr_wrm_reset: 1, /* Warm reset bit */ + icsr_rsvd1: 2, /* Data ready offset */ + icsr_null_to: 6; /* Null timeout */ + + } icsr_fields_s; +} hubii_ilcsr_t; + + +typedef union hubii_iowa_u { + u64 iowa_reg_value; + struct { + u64 iowa_rsvd: 48, /* unused */ + iowa_wxoac: 8, /* xtalk widget access bits */ + iowa_rsvd1: 7, /* xtalk widget access bits */ + iowa_w0oac: 1; /* xtalk widget access bits */ + } iowa_fields_s; +} hubii_iowa_t; + +typedef union hubii_iiwa_u { + u64 iiwa_reg_value; + struct { + u64 iiwa_rsvd: 48, /* unused */ + iiwa_wxiac: 8, /* hub wid access bits */ + iiwa_rsvd1: 7, /* reserved */ + iiwa_w0iac: 1; /* hub wid0 access */ + } iiwa_fields_s; +} hubii_iiwa_t; + +typedef union hubii_illr_u { + u64 illr_reg_value; + struct { + u64 illr_rsvd: 32, /* unused */ + illr_cb_cnt: 16, /* checkbit error count */ + illr_sn_cnt: 16; /* sequence number count */ + } illr_fields_s; +} hubii_illr_t; + +/* The structures below are defined to extract and modify the ii +performance registers */ + +/* io_perf_sel allows the caller to specify what tests will be + performed */ +typedef union io_perf_sel { + u64 perf_sel_reg; + struct { + u64 perf_rsvd : 48, + perf_icct : 8, + perf_ippr1 : 4, + perf_ippr0 : 4; + } perf_sel_bits; +} io_perf_sel_t; + +/* io_perf_cnt is to extract the count from the hub registers. Due to + hardware problems there is only one counter, not two. */ + +typedef union io_perf_cnt { + u64 perf_cnt; + struct { + u64 perf_rsvd1 : 32, + perf_rsvd2 : 12, + perf_cnt : 20; + } perf_cnt_bits; +} io_perf_cnt_t; + +#endif /* !__ASSEMBLY__ */ + + +#define LNK_STAT_WORKING 0x2 + +#define IIO_LLP_CB_MAX 0xffff +#define IIO_LLP_SN_MAX 0xffff + +/* IO PRB Entries */ +#define IIO_NUM_IPRBS (9) +#define IIO_IOPRB_0 0x400198 /* PRB entry 0 */ +#define IIO_IOPRB_8 0x4001a0 /* PRB entry 8 */ +#define IIO_IOPRB_9 0x4001a8 /* PRB entry 9 */ +#define IIO_IOPRB_A 0x4001b0 /* PRB entry a */ +#define IIO_IOPRB_B 0x4001b8 /* PRB entry b */ +#define IIO_IOPRB_C 0x4001c0 /* PRB entry c */ +#define IIO_IOPRB_D 0x4001c8 /* PRB entry d */ +#define IIO_IOPRB_E 0x4001d0 /* PRB entry e */ +#define IIO_IOPRB_F 0x4001d8 /* PRB entry f */ + + +#define IIO_IXCC 0x4001e0 /* Crosstalk credit count timeout */ +#define IIO_IXTCC IIO_IXCC +#define IIO_IMEM 0x4001e8 /* Miscellaneous Enable Mask */ +#define IIO_IXTT 0x4001f0 /* Crosstalk tail timeout */ +#define IIO_IECLR 0x4001f8 /* IO error clear */ +#define IIO_IBCN 0x400200 /* IO BTE CRB count */ + +/* + * IIO_IMEM Register fields. + */ +#define IIO_IMEM_W0ESD 0x1 /* Widget 0 shut down due to error */ +#define IIO_IMEM_B0ESD (1 << 4) /* BTE 0 shut down due to error */ +#define IIO_IMEM_B1ESD (1 << 8) /* BTE 1 Shut down due to error */ + +/* PIO Read address Table Entries */ +#define IIO_IPCA 0x400300 /* PRB Counter adjust */ +#define IIO_NUM_PRTES 8 /* Total number of PRB table entries */ +#define IIO_PRTE_0 0x400308 /* PIO Read address table entry 0 */ +#define IIO_PRTE(_x) (IIO_PRTE_0 + (8 * (_x))) +#define IIO_WIDPRTE(x) IIO_PRTE(((x) - 8)) /* widget ID to its PRTE num */ +#define IIO_IPDR 0x400388 /* PIO table entry deallocation */ +#define IIO_ICDR 0x400390 /* CRB Entry Deallocation */ +#define IIO_IFDR 0x400398 /* IOQ FIFO Depth */ +#define IIO_IIAP 0x4003a0 /* IIQ Arbitration Parameters */ +#define IIO_IMMR IIO_IIAP +#define IIO_ICMR 0x4003a8 /* CRB Management Register */ +#define IIO_ICCR 0x4003b0 /* CRB Control Register */ +#define IIO_ICTO 0x4003b8 /* CRB Time Out Register */ +#define IIO_ICTP 0x4003c0 /* CRB Time Out Prescalar */ + + +/* + * ICMR register fields + */ +#define IIO_ICMR_PC_VLD_SHFT 36 +#define IIO_ICMR_PC_VLD_MASK (0x7fffUL << IIO_ICMR_PC_VLD_SHFT) + +#define IIO_ICMR_CRB_VLD_SHFT 20 +#define IIO_ICMR_CRB_VLD_MASK (0x7fffUL << IIO_ICMR_CRB_VLD_SHFT) + +#define IIO_ICMR_FC_CNT_SHFT 16 +#define IIO_ICMR_FC_CNT_MASK (0xf << IIO_ICMR_FC_CNT_SHFT) + +#define IIO_ICMR_C_CNT_SHFT 4 +#define IIO_ICMR_C_CNT_MASK (0xf << IIO_ICMR_C_CNT_SHFT) + +#define IIO_ICMR_P_CNT_SHFT 0 +#define IIO_ICMR_P_CNT_MASK (0xf << IIO_ICMR_P_CNT_SHFT) + +#define IIO_ICMR_PRECISE (1UL << 52) +#define IIO_ICMR_CLR_RPPD (1UL << 13) +#define IIO_ICMR_CLR_RQPD (1UL << 12) + +/* + * IIO PIO Deallocation register field masks : (IIO_IPDR) + */ +#define IIO_IPDR_PND (1 << 4) + +/* + * IIO CRB deallocation register field masks: (IIO_ICDR) + */ +#define IIO_ICDR_PND (1 << 4) + +/* + * IIO CRB control register Fields: IIO_ICCR + */ +#define IIO_ICCR_PENDING (0x10000) +#define IIO_ICCR_CMD_MASK (0xFF) +#define IIO_ICCR_CMD_SHFT (7) +#define IIO_ICCR_CMD_NOP (0x0) /* No Op */ +#define IIO_ICCR_CMD_WAKE (0x100) /* Reactivate CRB entry and process */ +#define IIO_ICCR_CMD_TIMEOUT (0x200) /* Make CRB timeout & mark invalid */ +#define IIO_ICCR_CMD_EJECT (0x400) /* Contents of entry written to memory + * via a WB + */ +#define IIO_ICCR_CMD_FLUSH (0x800) + +/* + * CRB manipulation macros + * The CRB macros are slightly complicated, since there are up to + * four registers associated with each CRB entry. + */ +#define IIO_NUM_CRBS 15 /* Number of CRBs */ +#define IIO_NUM_NORMAL_CRBS 12 /* Number of regular CRB entries */ +#define IIO_NUM_PC_CRBS 4 /* Number of partial cache CRBs */ +#define IIO_ICRB_OFFSET 8 +#define IIO_ICRB_0 0x400400 +/* XXX - This is now tuneable: + #define IIO_FIRST_PC_ENTRY 12 + */ + +#define IIO_ICRB_A(_x) (IIO_ICRB_0 + (4 * IIO_ICRB_OFFSET * (_x))) +#define IIO_ICRB_B(_x) (IIO_ICRB_A(_x) + 1*IIO_ICRB_OFFSET) +#define IIO_ICRB_C(_x) (IIO_ICRB_A(_x) + 2*IIO_ICRB_OFFSET) +#define IIO_ICRB_D(_x) (IIO_ICRB_A(_x) + 3*IIO_ICRB_OFFSET) + +/* XXX - IBUE register coming for Hub 2 */ + +/* + * + * CRB Register description. + * + * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING + * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING + * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING + * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING + * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING + * + * Many of the fields in CRB are status bits used by hardware + * for implementation of the protocol. It's very dangerous to + * mess around with the CRB registers. + * + * It's OK to read the CRB registers and try to make sense out of the + * fields in CRB. + * + * Updating CRB requires all activities in Hub IIO to be quiesced. + * otherwise, a write to CRB could corrupt other CRB entries. + * CRBs are here only as a back door peek to hub IIO's status. + * Quiescing implies no dmas no PIOs + * either directly from the cpu or from sn0net. + * this is not something that can be done easily. So, AVOID updating + * CRBs. + */ + +/* + * Fields in CRB Register A + */ +#ifndef __ASSEMBLY__ +typedef union icrba_u { + u64 reg_value; + struct { + u64 resvd: 6, + stall_bte0: 1, /* Stall BTE 0 */ + stall_bte1: 1, /* Stall BTE 1 */ + error: 1, /* CRB has an error */ + ecode: 3, /* Error Code */ + lnetuce: 1, /* SN0net Uncorrectable error */ + mark: 1, /* CRB Has been marked */ + xerr: 1, /* Error bit set in xtalk header */ + sidn: 4, /* SIDN field from xtalk */ + tnum: 5, /* TNUM field in xtalk */ + addr: 38, /* Address of request */ + valid: 1, /* Valid status */ + iow: 1; /* IO Write operation */ + } icrba_fields_s; +} icrba_t; + +/* This is an alternate typedef for the HUB1 CRB A in order to allow + runtime selection of the format based on the REV_ID field of the + NI_STATUS_REV_ID register. */ +typedef union h1_icrba_u { + u64 reg_value; + + struct { + u64 resvd: 6, + unused: 1, /* Unused but RW!! */ + error: 1, /* CRB has an error */ + ecode: 4, /* Error Code */ + lnetuce: 1, /* SN0net Uncorrectable error */ + mark: 1, /* CRB Has been marked */ + xerr: 1, /* Error bit set in xtalk header */ + sidn: 4, /* SIDN field from xtalk */ + tnum: 5, /* TNUM field in xtalk */ + addr: 38, /* Address of request */ + valid: 1, /* Valid status */ + iow: 1; /* IO Write operation */ + } h1_icrba_fields_s; +} h1_icrba_t; + +/* XXX - Is this still right? Check the spec. */ +#define ICRBN_A_CERR_SHFT 54 +#define ICRBN_A_ERR_MASK 0x3ff + +#endif /* !__ASSEMBLY__ */ + +#define IIO_ICRB_ADDR_SHFT 2 /* Shift to get proper address */ + +/* + * values for "ecode" field + */ +#define IIO_ICRB_ECODE_DERR 0 /* Directory error due to IIO access */ +#define IIO_ICRB_ECODE_PERR 1 /* Poison error on IO access */ +#define IIO_ICRB_ECODE_WERR 2 /* Write error by IIO access + * e.g. WINV to a Read only line. + */ +#define IIO_ICRB_ECODE_AERR 3 /* Access error caused by IIO access */ +#define IIO_ICRB_ECODE_PWERR 4 /* Error on partial write */ +#define IIO_ICRB_ECODE_PRERR 5 /* Error on partial read */ +#define IIO_ICRB_ECODE_TOUT 6 /* CRB timeout before deallocating */ +#define IIO_ICRB_ECODE_XTERR 7 /* Incoming xtalk pkt had error bit */ + + + +/* + * Fields in CRB Register B + */ +#ifndef __ASSEMBLY__ +typedef union icrbb_u { + u64 reg_value; + struct { + u64 rsvd1: 5, + btenum: 1, /* BTE to which entry belongs to */ + cohtrans: 1, /* Coherent transaction */ + xtsize: 2, /* Xtalk operation size + * 0: Double Word + * 1: 32 Bytes. + * 2: 128 Bytes, + * 3: Reserved. + */ + srcnode: 9, /* Source Node ID */ + srcinit: 2, /* Source Initiator: + * See below for field values. + */ + useold: 1, /* Use OLD command for processing */ + imsgtype: 2, /* Incoming message type + * see below for field values + */ + imsg: 8, /* Incoming message */ + initator: 3, /* Initiator of original request + * See below for field values. + */ + reqtype: 5, /* Identifies type of request + * See below for field values. + */ + rsvd2: 7, + ackcnt: 11, /* Invalidate ack count */ + resp: 1, /* data response given to processor */ + ack: 1, /* indicates data ack received */ + hold: 1, /* entry is gathering inval acks */ + wb_pend:1, /* waiting for writeback to complete */ + intvn: 1, /* Intervention */ + stall_ib: 1, /* Stall Ibuf (from crosstalk) */ + stall_intr: 1; /* Stall internal interrupts */ + } icrbb_field_s; +} icrbb_t; + +/* This is an alternate typedef for the HUB1 CRB B in order to allow + runtime selection of the format based on the REV_ID field of the + NI_STATUS_REV_ID register. */ +typedef union h1_icrbb_u { + u64 reg_value; + struct { + u64 rsvd1: 5, + btenum: 1, /* BTE to which entry belongs to */ + cohtrans: 1, /* Coherent transaction */ + xtsize: 2, /* Xtalk operation size + * 0: Double Word + * 1: 32 Bytes. + * 2: 128 Bytes, + * 3: Reserved. + */ + srcnode: 9, /* Source Node ID */ + srcinit: 2, /* Source Initiator: + * See below for field values. + */ + useold: 1, /* Use OLD command for processing */ + imsgtype: 2, /* Incoming message type + * see below for field values + */ + imsg: 8, /* Incoming message */ + initator: 3, /* Initiator of original request + * See below for field values. + */ + rsvd2: 1, + pcache: 1, /* entry belongs to partial cache */ + reqtype: 5, /* Identifies type of request + * See below for field values. + */ + stl_ib: 1, /* stall Ibus coming from xtalk */ + stl_intr: 1, /* Stall internal interrupts */ + stl_bte0: 1, /* Stall BTE 0 */ + stl_bte1: 1, /* Stall BTE 1 */ + intrvn: 1, /* Req was target of intervention */ + ackcnt: 11, /* Invalidate ack count */ + resp: 1, /* data response given to processor */ + ack: 1, /* indicates data ack received */ + hold: 1, /* entry is gathering inval acks */ + wb_pend:1, /* waiting for writeback to complete */ + sleep: 1, /* xtalk req sleeping till IO-sync */ + pnd_reply: 1, /* replies not issed due to IOQ full */ + pnd_req: 1; /* reqs not issued due to IOQ full */ + } h1_icrbb_field_s; +} h1_icrbb_t; + + +#define b_imsgtype icrbb_field_s.imsgtype +#define b_btenum icrbb_field_s.btenum +#define b_cohtrans icrbb_field_s.cohtrans +#define b_xtsize icrbb_field_s.xtsize +#define b_srcnode icrbb_field_s.srcnode +#define b_srcinit icrbb_field_s.srcinit +#define b_imsgtype icrbb_field_s.imsgtype +#define b_imsg icrbb_field_s.imsg +#define b_initiator icrbb_field_s.initiator + +#endif /* !__ASSEMBLY__ */ + +/* + * values for field xtsize + */ +#define IIO_ICRB_XTSIZE_DW 0 /* Xtalk operation size is 8 bytes */ +#define IIO_ICRB_XTSIZE_32 1 /* Xtalk operation size is 32 bytes */ +#define IIO_ICRB_XTSIZE_128 2 /* Xtalk operation size is 128 bytes */ + +/* + * values for field srcinit + */ +#define IIO_ICRB_PROC0 0 /* Source of request is Proc 0 */ +#define IIO_ICRB_PROC1 1 /* Source of request is Proc 1 */ +#define IIO_ICRB_GB_REQ 2 /* Source is Guaranteed BW request */ +#define IIO_ICRB_IO_REQ 3 /* Source is Normal IO request */ + +/* + * Values for field imsgtype + */ +#define IIO_ICRB_IMSGT_XTALK 0 /* Incoming Message from Xtalk */ +#define IIO_ICRB_IMSGT_BTE 1 /* Incoming message from BTE */ +#define IIO_ICRB_IMSGT_SN0NET 2 /* Incoming message from SN0 net */ +#define IIO_ICRB_IMSGT_CRB 3 /* Incoming message from CRB ??? */ + +/* + * values for field initiator. + */ +#define IIO_ICRB_INIT_XTALK 0 /* Message originated in xtalk */ +#define IIO_ICRB_INIT_BTE0 0x1 /* Message originated in BTE 0 */ +#define IIO_ICRB_INIT_SN0NET 0x2 /* Message originated in SN0net */ +#define IIO_ICRB_INIT_CRB 0x3 /* Message originated in CRB ? */ +#define IIO_ICRB_INIT_BTE1 0x5 /* MEssage originated in BTE 1 */ + +/* + * Values for field reqtype. + */ +/* XXX - Need to fix this for Hub 2 */ +#define IIO_ICRB_REQ_DWRD 0 /* Request type double word */ +#define IIO_ICRB_REQ_QCLRD 1 /* Request is Qrtr Caceh line Rd */ +#define IIO_ICRB_REQ_BLKRD 2 /* Request is block read */ +#define IIO_ICRB_REQ_RSHU 6 /* Request is BTE block read */ +#define IIO_ICRB_REQ_REXU 7 /* request is BTE Excl Read */ +#define IIO_ICRB_REQ_RDEX 8 /* Request is Read Exclusive */ +#define IIO_ICRB_REQ_WINC 9 /* Request is Write Invalidate */ +#define IIO_ICRB_REQ_BWINV 10 /* Request is BTE Winv */ +#define IIO_ICRB_REQ_PIORD 11 /* Request is PIO read */ +#define IIO_ICRB_REQ_PIOWR 12 /* Request is PIO Write */ +#define IIO_ICRB_REQ_PRDM 13 /* Request is Fetch&Op */ +#define IIO_ICRB_REQ_PWRM 14 /* Request is Store &Op */ +#define IIO_ICRB_REQ_PTPWR 15 /* Request is Peer to peer */ +#define IIO_ICRB_REQ_WB 16 /* Request is Write back */ +#define IIO_ICRB_REQ_DEX 17 /* Retained DEX Cache line */ + +/* + * Fields in CRB Register C + */ + +#ifndef __ASSEMBLY__ + +typedef union icrbc_s { + u64 reg_value; + struct { + u64 rsvd: 6, + sleep: 1, + pricnt: 4, /* Priority count sent with Read req */ + pripsc: 4, /* Priority Pre scalar */ + bteop: 1, /* BTE Operation */ + push_be: 34, /* Push address Byte enable + * Holds push addr, if CRB is for BTE + * If CRB belongs to Partial cache, + * this contains byte enables bits + * ([47:46] = 0) + */ + suppl: 11, /* Supplemental field */ + barrop: 1, /* Barrier Op bit set in xtalk req */ + doresp: 1, /* Xtalk req needs a response */ + gbr: 1; /* GBR bit set in xtalk packet */ + } icrbc_field_s; +} icrbc_t; + +#define c_pricnt icrbc_field_s.pricnt +#define c_pripsc icrbc_field_s.pripsc +#define c_bteop icrbc_field_s.bteop +#define c_bteaddr icrbc_field_s.push_be /* push_be field has 2 names */ +#define c_benable icrbc_field_s.push_be /* push_be field has 2 names */ +#define c_suppl icrbc_field_s.suppl +#define c_barrop icrbc_field_s.barrop +#define c_doresp icrbc_field_s.doresp +#define c_gbr icrbc_field_s.gbr +#endif /* !__ASSEMBLY__ */ + +/* + * Fields in CRB Register D + */ + +#ifndef __ASSEMBLY__ +typedef union icrbd_s { + u64 reg_value; + struct { + u64 rsvd: 38, + toutvld: 1, /* Timeout in progress for this CRB */ + ctxtvld: 1, /* Context field below is valid */ + rsvd2: 1, + context: 15, /* Bit vector: + * Has a bit set for each CRB entry + * which needs to be deallocated + * before this CRB entry is processed. + * Set only for barrier operations. + */ + timeout: 8; /* Timeout Upper 8 bits */ + } icrbd_field_s; +} icrbd_t; + +#define icrbd_toutvld icrbd_field_s.toutvld +#define icrbd_ctxtvld icrbd_field_s.ctxtvld +#define icrbd_context icrbd_field_s.context + + +typedef union hubii_ifdr_u { + u64 hi_ifdr_value; + struct { + u64 ifdr_rsvd: 49, + ifdr_maxrp: 7, + ifdr_rsvd1: 1, + ifdr_maxrq: 7; + } hi_ifdr_fields; +} hubii_ifdr_t; + +#endif /* !__ASSEMBLY__ */ + +/* + * Hardware designed names for the BTE control registers. + */ +#define IIO_IBLS_0 0x410000 /* BTE length/status 0 */ +#define IIO_IBSA_0 0x410008 /* BTE source address 0 */ +#define IIO_IBDA_0 0x410010 /* BTE destination address 0 */ +#define IIO_IBCT_0 0x410018 /* BTE control/terminate 0 */ +#define IIO_IBNA_0 0x410020 /* BTE notification address 0 */ +#define IIO_IBNR_0 IIO_IBNA_0 +#define IIO_IBIA_0 0x410028 /* BTE interrupt address 0 */ + +#define IIO_IBLS_1 0x420000 /* BTE length/status 1 */ +#define IIO_IBSA_1 0x420008 /* BTE source address 1 */ +#define IIO_IBDA_1 0x420010 /* BTE destination address 1 */ +#define IIO_IBCT_1 0x420018 /* BTE control/terminate 1 */ +#define IIO_IBNA_1 0x420020 /* BTE notification address 1 */ +#define IIO_IBNR_1 IIO_IBNA_1 +#define IIO_IBIA_1 0x420028 /* BTE interrupt address 1 */ + +/* + * More miscellaneous registers + */ +#define IIO_IPCR 0x430000 /* Performance Control */ +#define IIO_IPPR 0x430008 /* Performance Profiling */ + +/* + * IO Error Clear register bit field definitions + */ +#define IECLR_BTE1 (1 << 18) /* clear bte error 1 ??? */ +#define IECLR_BTE0 (1 << 17) /* clear bte error 0 ??? */ +#define IECLR_CRAZY (1 << 16) /* clear crazy bit in wstat reg */ +#define IECLR_PRB_F (1 << 15) /* clear err bit in PRB_F reg */ +#define IECLR_PRB_E (1 << 14) /* clear err bit in PRB_E reg */ +#define IECLR_PRB_D (1 << 13) /* clear err bit in PRB_D reg */ +#define IECLR_PRB_C (1 << 12) /* clear err bit in PRB_C reg */ +#define IECLR_PRB_B (1 << 11) /* clear err bit in PRB_B reg */ +#define IECLR_PRB_A (1 << 10) /* clear err bit in PRB_A reg */ +#define IECLR_PRB_9 (1 << 9) /* clear err bit in PRB_9 reg */ +#define IECLR_PRB_8 (1 << 8) /* clear err bit in PRB_8 reg */ +#define IECLR_PRB_0 (1 << 0) /* clear err bit in PRB_0 reg */ + +/* + * IO PIO Read Table Entry format + */ + +#ifndef __ASSEMBLY__ + +typedef union iprte_a { + u64 entry; + struct { + u64 rsvd1 : 7, /* Reserved field */ + valid : 1, /* Maps to a timeout entry */ + rsvd2 : 1, + srcnode : 9, /* Node which did this PIO */ + initiator : 2, /* If T5A or T5B or IO */ + rsvd3 : 3, + addr : 38, /* Physical address of PIO */ + rsvd4 : 3; + } iprte_fields; +} iprte_a_t; + +#define iprte_valid iprte_fields.valid +#define iprte_timeout iprte_fields.timeout +#define iprte_srcnode iprte_fields.srcnode +#define iprte_init iprte_fields.initiator +#define iprte_addr iprte_fields.addr + +#endif /* !__ASSEMBLY__ */ + +#define IPRTE_ADDRSHFT 3 + +/* + * Hub IIO PRB Register format. + */ + +#ifndef __ASSEMBLY__ +/* + * Note: Fields bnakctr, anakctr, xtalkctrmode, ovflow fields are + * "Status" fields, and should only be used in case of clean up after errors. + */ + +typedef union iprb_u { + u64 reg_value; + struct { + u64 rsvd1: 15, + error: 1, /* Widget rcvd wr resp pkt w/ error */ + ovflow: 5, /* Overflow count. perf measurement */ + fire_and_forget: 1, /* Launch Write without response */ + mode: 2, /* Widget operation Mode */ + rsvd2: 2, + bnakctr: 14, + rsvd3: 2, + anakctr: 14, + xtalkctr: 8; + } iprb_fields_s; +} iprb_t; + +#define iprb_regval reg_value + +#define iprb_error iprb_fields_s.error +#define iprb_ovflow iprb_fields_s.ovflow +#define iprb_ff iprb_fields_s.fire_and_forget +#define iprb_mode iprb_fields_s.mode +#define iprb_bnakctr iprb_fields_s.bnakctr +#define iprb_anakctr iprb_fields_s.anakctr +#define iprb_xtalkctr iprb_fields_s.xtalkctr + +#endif /* !__ASSEMBLY__ */ + +/* + * values for mode field in iprb_t. + * For details of the meanings of NAK and Accept, refer the PIO flow + * document + */ +#define IPRB_MODE_NORMAL (0) +#define IPRB_MODE_COLLECT_A (1) /* PRB in collect A mode */ +#define IPRB_MODE_SERVICE_A (2) /* NAK B and Accept A */ +#define IPRB_MODE_SERVICE_B (3) /* NAK A and Accept B */ + +/* + * IO CRB entry C_A to E_A : Partial (cache) CRBS + */ +#ifndef __ASSEMBLY__ +typedef union icrbp_a { + u64 ip_reg; /* the entire register value */ + struct { + u64 error: 1, /* 63, error occurred */ + ln_uce: 1, /* 62: uncorrectable memory */ + ln_ae: 1, /* 61: protection violation */ + ln_werr:1, /* 60: write access error */ + ln_aerr:1, /* 59: sn0net: Address error */ + ln_perr:1, /* 58: sn0net: poison error */ + timeout:1, /* 57: CRB timed out */ + l_bdpkt:1, /* 56: truncated pkt on sn0net */ + c_bdpkt:1, /* 55: truncated pkt on xtalk */ + c_err: 1, /* 54: incoming xtalk req, err set*/ + rsvd1: 12, /* 53-42: reserved */ + valid: 1, /* 41: Valid status */ + sidn: 4, /* 40-37: SIDN field of xtalk rqst */ + tnum: 5, /* 36-32: TNUM of xtalk request */ + bo: 1, /* 31: barrier op set in xtalk rqst*/ + resprqd:1, /* 30: xtalk rqst requires response*/ + gbr: 1, /* 29: gbr bit set in xtalk rqst */ + size: 2, /* 28-27: size of xtalk request */ + excl: 4, /* 26-23: exclusive bit(s) */ + stall: 3, /* 22-20: stall (xtalk, bte 0/1) */ + intvn: 1, /* 19: rqst target of intervention*/ + resp: 1, /* 18: Data response given to t5 */ + ack: 1, /* 17: Data ack received. */ + hold: 1, /* 16: crb gathering invalidate acks*/ + wb: 1, /* 15: writeback pending. */ + ack_cnt:11, /* 14-04: counter of invalidate acks*/ + tscaler:4; /* 03-00: Timeout prescaler */ + } ip_fmt; +} icrbp_a_t; + +#endif /* !__ASSEMBLY__ */ + +/* + * A couple of defines to go with the above structure. + */ +#define ICRBP_A_CERR_SHFT 54 +#define ICRBP_A_ERR_MASK 0x3ff + +#ifndef __ASSEMBLY__ +typedef union hubii_idsr { + u64 iin_reg; + struct { + u64 rsvd1 : 35, + isent : 1, + rsvd2 : 3, + ienable: 1, + rsvd : 7, + node : 9, + rsvd4 : 1, + level : 7; + } iin_fmt; +} hubii_idsr_t; +#endif /* !__ASSEMBLY__ */ + +/* + * IO BTE Length/Status (IIO_IBLS) register bit field definitions + */ +#define IBLS_BUSY (0x1 << 20) +#define IBLS_ERROR_SHFT 16 +#define IBLS_ERROR (0x1 << IBLS_ERROR_SHFT) +#define IBLS_LENGTH_MASK 0xffff + +/* + * IO BTE Control/Terminate register (IBCT) register bit field definitions + */ +#define IBCT_POISON (0x1 << 8) +#define IBCT_NOTIFY (0x1 << 4) +#define IBCT_ZFIL_MODE (0x1 << 0) + +/* + * IO BTE Interrupt Address Register (IBIA) register bit field definitions + */ +#define IBIA_LEVEL_SHFT 16 +#define IBIA_LEVEL_MASK (0x7f << IBIA_LEVEL_SHFT) +#define IBIA_NODE_ID_SHFT 0 +#define IBIA_NODE_ID_MASK (0x1ff) + +/* + * Miscellaneous hub constants + */ + +/* Number of widgets supported by hub */ +#define HUB_NUM_WIDGET 9 +#define HUB_WIDGET_ID_MIN 0x8 +#define HUB_WIDGET_ID_MAX 0xf + +#define HUB_WIDGET_PART_NUM 0xc101 +#define MAX_HUBS_PER_XBOW 2 + +/* + * Get a hub's widget id from widget control register + */ +#define IIO_WCR_WID_GET(nasid) (REMOTE_HUB_L(nasid, III_WCR) & 0xf) +#define IIO_WST_ERROR_MASK (UINT64_CAST 1 << 32) /* Widget status error */ + +/* + * Number of credits Hub widget has while sending req/response to + * xbow. + * Value of 3 is required by Xbow 1.1 + * We may be able to increase this to 4 with Xbow 1.2. + */ +#define HUBII_XBOW_CREDIT 3 +#define HUBII_XBOW_REV2_CREDIT 4 + +#endif /* _ASM_SGI_SN_SN0_HUBIO_H */ |