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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-ia64/] [sn/] [pci/] [pcibr_private.h] - Rev 1765
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/* $Id: pcibr_private.h,v 1.1.1.1 2004-04-15 02:42:56 phoenix Exp $ * * 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. * * Copyright (C) 1992 - 1997, 2000-2003 Silicon Graphics, Inc. All rights reserved. */ #ifndef _ASM_SN_PCI_PCIBR_PRIVATE_H #define _ASM_SN_PCI_PCIBR_PRIVATE_H /* * pcibr_private.h -- private definitions for pcibr * only the pcibr driver (and its closest friends) * should ever peek into this file. */ #include <linux/config.h> #include <linux/pci.h> #include <asm/sn/pci/pcibr.h> #include <asm/sn/pci/pciio_private.h> #include <asm/sn/ksys/l1.h> /* * convenience typedefs */ typedef uint64_t pcibr_DMattr_t; typedef uint32_t pcibr_ATEattr_t; typedef struct pcibr_info_s *pcibr_info_t, **pcibr_info_h; typedef struct pcibr_soft_s *pcibr_soft_t; typedef struct pcibr_soft_slot_s *pcibr_soft_slot_t; typedef struct pcibr_hints_s *pcibr_hints_t; typedef struct pcibr_intr_list_s *pcibr_intr_list_t; typedef struct pcibr_intr_wrap_s *pcibr_intr_wrap_t; typedef struct pcibr_intr_cbuf_s *pcibr_intr_cbuf_t; typedef volatile unsigned *cfg_p; typedef volatile bridgereg_t *reg_p; /* * extern functions */ cfg_p pcibr_slot_config_addr(bridge_t *, pciio_slot_t, int); cfg_p pcibr_func_config_addr(bridge_t *, pciio_bus_t bus, pciio_slot_t, pciio_function_t, int); unsigned pcibr_slot_config_get(bridge_t *, pciio_slot_t, int); unsigned pcibr_func_config_get(bridge_t *, pciio_slot_t, pciio_function_t, int); void pcibr_debug(uint32_t, vertex_hdl_t, char *, ...); void pcibr_slot_config_set(bridge_t *, pciio_slot_t, int, unsigned); void pcibr_func_config_set(bridge_t *, pciio_slot_t, pciio_function_t, int, unsigned); /* * PCIBR_DEBUG() macro and debug bitmask defines */ /* low freqency debug events (ie. initialization, resource allocation,...) */ #define PCIBR_DEBUG_INIT 0x00000001 /* bridge init */ #define PCIBR_DEBUG_HINTS 0x00000002 /* bridge hints */ #define PCIBR_DEBUG_ATTACH 0x00000004 /* bridge attach */ #define PCIBR_DEBUG_DETACH 0x00000008 /* bridge detach */ #define PCIBR_DEBUG_ATE 0x00000010 /* bridge ATE allocation */ #define PCIBR_DEBUG_RRB 0x00000020 /* bridge RRB allocation */ #define PCIBR_DEBUG_RBAR 0x00000040 /* bridge RBAR allocation */ #define PCIBR_DEBUG_PROBE 0x00000080 /* bridge device probing */ #define PCIBR_DEBUG_INTR_ERROR 0x00000100 /* bridge error interrupt */ #define PCIBR_DEBUG_ERROR_HDLR 0x00000200 /* bridge error handler */ #define PCIBR_DEBUG_CONFIG 0x00000400 /* device's config space */ #define PCIBR_DEBUG_BAR 0x00000800 /* device's BAR allocations */ #define PCIBR_DEBUG_INTR_ALLOC 0x00001000 /* device's intr allocation */ #define PCIBR_DEBUG_DEV_ATTACH 0x00002000 /* device's attach */ #define PCIBR_DEBUG_DEV_DETACH 0x00004000 /* device's detach */ #define PCIBR_DEBUG_HOTPLUG 0x00008000 /* high freqency debug events (ie. map allocation, direct translation,...) */ #define PCIBR_DEBUG_DEVREG 0x04000000 /* bridges device reg sets */ #define PCIBR_DEBUG_PIOMAP 0x08000000 /* pcibr_piomap */ #define PCIBR_DEBUG_PIODIR 0x10000000 /* pcibr_piotrans */ #define PCIBR_DEBUG_DMAMAP 0x20000000 /* pcibr_dmamap */ #define PCIBR_DEBUG_DMADIR 0x40000000 /* pcibr_dmatrans */ #define PCIBR_DEBUG_INTR 0x80000000 /* interrupts */ extern char *pcibr_debug_module; extern int pcibr_debug_widget; extern int pcibr_debug_slot; extern uint32_t pcibr_debug_mask; /* For low frequency events (ie. initialization, resource allocation,...) */ #define PCIBR_DEBUG_ALWAYS(args) pcibr_debug args ; /* XXX: habeck: maybe make PCIBR_DEBUG() always available? Even in non- * debug kernels? If tracing isn't enabled (i.e pcibr_debug_mask isn't * set, then the overhead for this macro is just an extra 'if' check. */ /* For high frequency events (ie. map allocation, direct translation,...) */ #if 1 || DEBUG #define PCIBR_DEBUG(args) PCIBR_DEBUG_ALWAYS(args) #else /* DEBUG */ #define PCIBR_DEBUG(args) #endif /* DEBUG */ /* * Bridge sets up PIO using this information. */ struct pcibr_piomap_s { struct pciio_piomap_s bp_pp; /* generic stuff */ #define bp_flags bp_pp.pp_flags /* PCIBR_PIOMAP flags */ #define bp_dev bp_pp.pp_dev /* associated pci card */ #define bp_slot bp_pp.pp_slot /* which slot the card is in */ #define bp_space bp_pp.pp_space /* which address space */ #define bp_pciaddr bp_pp.pp_pciaddr /* starting offset of mapping */ #define bp_mapsz bp_pp.pp_mapsz /* size of this mapping */ #define bp_kvaddr bp_pp.pp_kvaddr /* kernel virtual address to use */ iopaddr_t bp_xtalk_addr; /* corresponding xtalk address */ xtalk_piomap_t bp_xtalk_pio; /* corresponding xtalk resource */ pcibr_piomap_t bp_next; /* Next piomap on the list */ pcibr_soft_t bp_soft; /* backpointer to bridge soft data */ atomic_t bp_toc[1]; /* PCI timeout counter */ }; /* * Bridge sets up DMA using this information. */ struct pcibr_dmamap_s { struct pciio_dmamap_s bd_pd; #define bd_flags bd_pd.pd_flags /* PCIBR_DMAMAP flags */ #define bd_dev bd_pd.pd_dev /* associated pci card */ #define bd_slot bd_pd.pd_slot /* which slot the card is in */ struct pcibr_soft_s *bd_soft; /* pcibr soft state backptr */ xtalk_dmamap_t bd_xtalk; /* associated xtalk resources */ size_t bd_max_size; /* maximum size of mapping */ xwidgetnum_t bd_xio_port; /* target XIO port */ iopaddr_t bd_xio_addr; /* target XIO address */ iopaddr_t bd_pci_addr; /* via PCI address */ int bd_ate_index; /* Address Translation Entry Index */ int bd_ate_count; /* number of ATE's allocated */ bridge_ate_p bd_ate_ptr; /* where to write first ATE */ bridge_ate_t bd_ate_proto; /* prototype ATE (for xioaddr=0) */ bridge_ate_t bd_ate_prime; /* value of 1st ATE written */ }; #define IBUFSIZE 5 /* size of circular buffer (holds 4) */ /* * Circular buffer used for interrupt processing */ struct pcibr_intr_cbuf_s { spinlock_t ib_lock; /* cbuf 'put' lock */ int ib_in; /* index of next free entry */ int ib_out; /* index of next full entry */ pcibr_intr_wrap_t ib_cbuf[IBUFSIZE]; /* circular buffer of wrap */ }; /* * Bridge sets up interrupts using this information. */ struct pcibr_intr_s { struct pciio_intr_s bi_pi; #define bi_flags bi_pi.pi_flags /* PCIBR_INTR flags */ #define bi_dev bi_pi.pi_dev /* associated pci card */ #define bi_lines bi_pi.pi_lines /* which PCI interrupt line(s) */ #define bi_func bi_pi.pi_func /* handler function (when connected) */ #define bi_arg bi_pi.pi_arg /* handler parameter (when connected) */ #define bi_mustruncpu bi_pi.pi_mustruncpu /* Where we must run. */ #define bi_irq bi_pi.pi_irq /* IRQ assigned. */ #define bi_cpu bi_pi.pi_cpu /* cpu assigned. */ unsigned bi_ibits; /* which Bridge interrupt bit(s) */ pcibr_soft_t bi_soft; /* shortcut to soft info */ struct pcibr_intr_cbuf_s bi_ibuf; /* circular buffer of wrap ptrs */ unsigned bi_last_intr; /* For Shub lb lost intr. bug */ }; /* * PCIBR_INFO_SLOT_GET_EXT returns the external slot number that the card * resides in. (i.e the slot number silk screened on the back of the I/O * brick). PCIBR_INFO_SLOT_GET_INT returns the internal slot (or device) * number used by the pcibr code to represent that external slot (i.e to * set bit patterns in BRIDGE/PIC registers to represent the device, or to * offset into an array, or ...). * * In BRIDGE and XBRIDGE the external slot and internal device numbering * are the same. (0->0, 1->1, 2->2,... 7->7) BUT in the PIC the external * slot number is always 1 greater than the internal device number (1->0, * 2->1, 3->2, 4->3). This is due to the fact that the PCI-X spec requires * that the 'bridge' (i.e PIC) be designated as 'device 0', thus external * slot numbering can't start at zero. * * PCIBR_DEVICE_TO_SLOT converts an internal device number to an external * slot number. NOTE: PCIIO_SLOT_NONE stays as PCIIO_SLOT_NONE. * * PCIBR_SLOT_TO_DEVICE converts an external slot number to an internal * device number. NOTE: PCIIO_SLOT_NONE stays as PCIIO_SLOT_NONE. */ #define PCIBR_INFO_SLOT_GET_EXT(info) (((pcibr_info_t)info)->f_slot) #define PCIBR_INFO_SLOT_GET_INT(info) (((pcibr_info_t)info)->f_dev) #define PCIBR_DEVICE_TO_SLOT(pcibr_soft, dev_num) \ (((dev_num) != PCIIO_SLOT_NONE) ? \ (IS_PIC_SOFT((pcibr_soft)) ? ((dev_num) + 1) : (dev_num)) : \ PCIIO_SLOT_NONE) #define PCIBR_SLOT_TO_DEVICE(pcibr_soft, slot) \ (((slot) != PCIIO_SLOT_NONE) ? \ (IS_PIC_SOFT((pcibr_soft)) ? ((slot) - 1) : (slot)) : \ PCIIO_SLOT_NONE) /* * per-connect point pcibr data, including standard pciio data in-line: */ struct pcibr_info_s { struct pciio_info_s f_c; /* MUST BE FIRST. */ #define f_vertex f_c.c_vertex /* back pointer to vertex */ #define f_bus f_c.c_bus /* which bus the card is in */ #define f_slot f_c.c_slot /* which slot the card is in */ #define f_func f_c.c_func /* which func (on multi-func cards) */ #define f_vendor f_c.c_vendor /* PCI card "vendor" code */ #define f_device f_c.c_device /* PCI card "device" code */ #define f_master f_c.c_master /* PCI bus provider */ #define f_mfast f_c.c_mfast /* cached fastinfo from c_master */ #define f_pops f_c.c_pops /* cached provider from c_master */ #define f_efunc f_c.c_efunc /* error handling function */ #define f_einfo f_c.c_einfo /* first parameter for efunc */ #define f_window f_c.c_window /* state of BASE regs */ #define f_rwindow f_c.c_rwindow /* expansion ROM BASE regs */ #define f_rbase f_c.c_rbase /* expansion ROM base */ #define f_rsize f_c.c_rsize /* expansion ROM size */ #define f_piospace f_c.c_piospace /* additional I/O spaces allocated */ /* pcibr-specific connection state */ int f_ibit[4]; /* Bridge bit for each INTx */ pcibr_piomap_t f_piomap; int f_att_det_error; pciio_slot_t f_dev; /* which device the card represents */ cap_pcix_type0_t *f_pcix_cap; /* pointer to the pcix capability */ }; /* ===================================================================== * Shared Interrupt Information */ struct pcibr_intr_list_s { pcibr_intr_list_t il_next; pcibr_intr_t il_intr; volatile bridgereg_t *il_wrbf; /* ptr to b_wr_req_buf[] */ }; /* ===================================================================== * Interrupt Wrapper Data */ struct pcibr_intr_wrap_s { pcibr_soft_t iw_soft; /* which bridge */ volatile bridgereg_t *iw_stat; /* ptr to b_int_status */ bridgereg_t iw_ibit; /* bit in b_int_status */ pcibr_intr_list_t iw_list; /* ghostbusters! */ int iw_hdlrcnt; /* running handler count */ int iw_shared; /* if Bridge bit is shared */ int iw_connected; /* if already connected */ }; #define PCIBR_ISR_ERR_START 8 #define PCIBR_ISR_MAX_ERRS_BRIDGE 32 #define PCIBR_ISR_MAX_ERRS_PIC 45 #define PCIBR_ISR_MAX_ERRS PCIBR_ISR_MAX_ERRS_PIC /* * PCI Base Address Register window allocation constants. * To reduce the size of the internal resource mapping structures, do * not use the entire PCI bus I/O address space */ #define PCIBR_BUS_IO_BASE 0x100000 #define PCIBR_BUS_IO_MAX 0x0FFFFFFF #define PCIBR_BUS_IO_PAGE 0x100000 #define PCIBR_BUS_SWIN_BASE PAGE_SIZE #define PCIBR_BUS_SWIN_MAX 0x000FFFFF #define PCIBR_BUS_SWIN_PAGE PAGE_SIZE #define PCIBR_BUS_MEM_BASE 0x200000 #define PCIBR_BUS_MEM_MAX 0x3FFFFFFF #define PCIBR_BUS_MEM_PAGE 0x100000 /* defines for pcibr_soft_s->bs_bridge_type */ #define PCIBR_BRIDGETYPE_BRIDGE 0 #define PCIBR_BRIDGETYPE_XBRIDGE 1 #define PCIBR_BRIDGETYPE_PIC 2 #define IS_XBRIDGE_SOFT(ps) (ps->bs_bridge_type == PCIBR_BRIDGETYPE_XBRIDGE) #define IS_PIC_SOFT(ps) (ps->bs_bridge_type == PCIBR_BRIDGETYPE_PIC) #define IS_PIC_BUSNUM_SOFT(ps, bus) \ (IS_PIC_SOFT(ps) && ((ps)->bs_busnum == (bus))) #define IS_BRIDGE_SOFT(ps) (ps->bs_bridge_type == PCIBR_BRIDGETYPE_BRIDGE) #define IS_XBRIDGE_OR_PIC_SOFT(ps) (IS_XBRIDGE_SOFT(ps) || IS_PIC_SOFT(ps)) /* * Runtime checks for workarounds. */ #define PCIBR_WAR_ENABLED(pv, pcibr_soft) \ ((1 << XWIDGET_PART_REV_NUM_REV(pcibr_soft->bs_rev_num)) & pv) /* * Defines for individual WARs. Each is a bitmask of applicable * part revision numbers. (1 << 1) == rev A, (1 << 2) == rev B, etc. */ #define PV854697 (~0) /* PIC: write 64bit regs as 64bits. permanent */ #define PV854827 (~0) /* PIC: fake widget 0xf presence bit. permanent */ #define PV855271 (1 << 1) /* PIC: PIC: use virt chan iff 64-bit device. */ #define PV855272 (1 << 1) /* PIC: runaway interrupt WAR */ #define PV856155 (1 << 1) /* PIC: arbitration WAR */ #define PV856864 (1 << 1) /* PIC: lower timeout to free TNUMs quicker */ #define PV856866 (1 << 1) /* PIC: avoid rrb's 0/1/8/9. */ #define PV862253 (1 << 1) /* PIC: don't enable write req RAM parity checking */ #define PV867308 (3 << 1) /* PIC: make LLP error interrupts FATAL for PIC */ /* defines for pcibr_soft_s->bs_bridge_mode */ #define PCIBR_BRIDGEMODE_PCI_33 0x0 #define PCIBR_BRIDGEMODE_PCI_66 0x2 #define PCIBR_BRIDGEMODE_PCIX_66 0x3 #define PCIBR_BRIDGEMODE_PCIX_100 0x5 #define PCIBR_BRIDGEMODE_PCIX_133 0x7 #define BUSSPEED_MASK 0x6 #define BUSTYPE_MASK 0x1 #define IS_PCI(ps) (!IS_PCIX(ps)) #define IS_PCIX(ps) ((ps)->bs_bridge_mode & BUSTYPE_MASK) #define IS_33MHZ(ps) ((ps)->bs_bridge_mode == PCIBR_BRIDGEMODE_PCI_33) #define IS_66MHZ(ps) (((ps)->bs_bridge_mode == PCIBR_BRIDGEMODE_PCI_66) || \ ((ps)->bs_bridge_mode == PCIBR_BRIDGEMODE_PCIX_66)) #define IS_100MHZ(ps) ((ps)->bs_bridge_mode == PCIBR_BRIDGEMODE_PCIX_100) #define IS_133MHZ(ps) ((ps)->bs_bridge_mode == PCIBR_BRIDGEMODE_PCIX_133) /* Number of PCI slots. NOTE: this works as long as the first slot * is zero. Otherwise use ((ps->bs_max_slot+1) - ps->bs_min_slot) */ #define PCIBR_NUM_SLOTS(ps) (ps->bs_max_slot+1) /* ===================================================================== * Bridge Device State structure * * one instance of this structure is kept for each * Bridge ASIC in the system. */ struct pcibr_soft_s { vertex_hdl_t bs_conn; /* xtalk connection point */ vertex_hdl_t bs_vhdl; /* vertex owned by pcibr */ uint64_t bs_int_enable; /* Mask of enabled intrs */ bridge_t *bs_base; /* PIO pointer to Bridge chip */ char *bs_name; /* hw graph name */ xwidgetnum_t bs_xid; /* Bridge's xtalk ID number */ vertex_hdl_t bs_master; /* xtalk master vertex */ xwidgetnum_t bs_mxid; /* master's xtalk ID number */ pciio_slot_t bs_first_slot; /* first existing slot */ pciio_slot_t bs_last_slot; /* last existing slot */ pciio_slot_t bs_last_reset; /* last slot to reset */ pciio_slot_t bs_min_slot; /* lowest possible slot */ pciio_slot_t bs_max_slot; /* highest possible slot */ pcibr_soft_t bs_peers_soft; /* PICs other bus's soft */ int bs_busnum; /* PIC has two pci busses */ iopaddr_t bs_dir_xbase; /* xtalk address for 32-bit PCI direct map */ xwidgetnum_t bs_dir_xport; /* xtalk port for 32-bit PCI direct map */ struct resource bs_int_ate_resource;/* root resource for internal ATEs */ struct resource bs_ext_ate_resource;/* root resource for external ATEs */ void *bs_allocated_ate_res;/* resource struct allocated */ short bs_int_ate_size; /* number of internal ates */ short bs_bridge_type; /* see defines above */ short bs_bridge_mode; /* see defines above */ int bs_rev_num; /* revision number of Bridge */ /* bs_dma_flags are the forced dma flags used on all DMAs. Used for * working around ASIC rev issues and protocol specific requirements */ unsigned bs_dma_flags; /* forced DMA flags */ moduleid_t bs_moduleid; /* io brick moduleid */ short bs_bricktype; /* io brick type */ /* * Lock used primarily to get mutual exclusion while managing any * bridge resources.. */ spinlock_t bs_lock; vertex_hdl_t bs_noslot_conn; /* NO-SLOT connection point */ pcibr_info_t bs_noslot_info; struct pcibr_soft_slot_s { /* information we keep about each CFG slot */ /* some devices (ioc3 in non-slotted * configurations, sometimes) make use * of more than one REQ/GNT/INT* signal * sets. The slot corresponding to the * IDSEL that the device responds to is * called the host slot; the slot * numbers that the device is stealing * REQ/GNT/INT bits from are known as * the guest slots. */ int has_host; pciio_slot_t host_slot; vertex_hdl_t slot_conn; /* PCI Hot-Plug status word */ int slot_status; /* Potentially several connection points * for this slot. bss_ninfo is how many, * and bss_infos is a pointer to * an array pcibr_info_t values (which are * pointers to pcibr_info structs, stored * as device_info in connection ponts). */ int bss_ninfo; pcibr_info_h bss_infos; /* Temporary Compatibility Macros, for * stuff that has moved out of bs_slot * and into the info structure. These * will go away when their users have * converted over to multifunction- * friendly use of bss_{ninfo,infos}. */ #define bss_vendor_id bss_infos[0]->f_vendor #define bss_device_id bss_infos[0]->f_device #define bss_window bss_infos[0]->f_window #define bssw_space w_space #define bssw_base w_base #define bssw_size w_size /* Where is DevIO(x) pointing? */ /* bssd_space is NONE if it is not assigned. */ struct { pciio_space_t bssd_space; iopaddr_t bssd_base; int bssd_ref_cnt; } bss_devio; /* Shadow value for Device(x) register, * so we don't have to go to the chip. */ bridgereg_t bss_device; /* Number of sets on GBR/REALTIME bit outstanding * Used by Priority I/O for tracking reservations */ int bss_pri_uctr; /* Number of "uses" of PMU, 32-bit direct, * and 64-bit direct DMA (0:none, <0: trans, * >0: how many dmamaps). Device(x) bits * controlling attribute of each kind of * channel can't be changed by dmamap_alloc * or dmatrans if the controlling counter * is nonzero. dmatrans is forever. */ int bss_pmu_uctr; int bss_d32_uctr; int bss_d64_uctr; /* When the contents of mapping configuration * information is locked down by dmatrans, * repeated checks of the same flags should * be shortcircuited for efficiency. */ iopaddr_t bss_d64_base; unsigned bss_d64_flags; iopaddr_t bss_d32_base; unsigned bss_d32_flags; /* Shadow information used for implementing * Bridge Hardware WAR #484930 */ atomic_t bss_ext_ates_active; volatile unsigned *bss_cmd_pointer; unsigned bss_cmd_shadow; } bs_slot[8]; pcibr_intr_bits_f *bs_intr_bits; /* PIC PCI-X Read Buffer Management : * bs_pcix_num_funcs: the total number of PCI-X functions * on the bus * bs_pcix_split_tot: total number of outstanding split * transactions requested by all functions on the bus * bs_pcix_rbar_percent_allowed: the percentage of the * total number of buffers a function requested that are * available to it, not including the 1 RBAR guaranteed * to it. * bs_pcix_rbar_inuse: number of RBARs in use. * bs_pcix_rbar_avail: number of RBARs available. NOTE: * this value can go negative if we oversubscribe the * RBARs. (i.e. We have 16 RBARs but 17 functions). */ int bs_pcix_num_funcs; int bs_pcix_split_tot; int bs_pcix_rbar_percent_allowed; int bs_pcix_rbar_inuse; int bs_pcix_rbar_avail; /* RRB MANAGEMENT * bs_rrb_fixed: bitmap of slots whose RRB * allocations we should not "automatically" change * bs_rrb_avail: number of RRBs that have not * been allocated or reserved for {even,odd} slots * bs_rrb_res: number of RRBs currently reserved for the * use of the index slot number * bs_rrb_res_dflt: number of RRBs reserved at boot * time for the use of the index slot number * bs_rrb_valid: number of RRBs currently marked valid * for the indexed slot/vchan number; array[slot][vchan] * bs_rrb_valid_dflt: number of RRBs marked valid at boot * time for the indexed slot/vchan number; array[slot][vchan] */ int bs_rrb_fixed; int bs_rrb_avail[2]; int bs_rrb_res[8]; int bs_rrb_res_dflt[8]; int bs_rrb_valid[8][4]; int bs_rrb_valid_dflt[8][4]; struct { /* Each Bridge interrupt bit has a single XIO * interrupt channel allocated. */ xtalk_intr_t bsi_xtalk_intr; /* * A wrapper structure is associated with each * Bridge interrupt bit. */ struct pcibr_intr_wrap_s bsi_pcibr_intr_wrap; } bs_intr[8]; xtalk_intr_t bsi_err_intr; /* * We stash away some information in this structure on getting * an error interrupt. This information is used during PIO read/ * write error handling. * * As it stands now, we do not re-enable the error interrupt * till the error is resolved. Error resolution happens either at * bus error time for PIO Read errors (~100 microseconds), or at * the scheduled timeout time for PIO write errors (~milliseconds). * If this delay causes problems, we may need to move towards * a different scheme.. * * Note that there is no locking while looking at this data structure. * There should not be any race between bus error code and * error interrupt code.. will look into this if needed. * * NOTE: The above discussion of error interrupt processing is * no longer true. Whether it should again be true, is * being looked into. */ struct br_errintr_info { int bserr_toutcnt; #ifdef LATER toid_t bserr_toutid; /* Timeout started by errintr */ #endif /* LATER */ iopaddr_t bserr_addr; /* Address where error occured */ uint64_t bserr_intstat; /* interrupts active at error dump */ } bs_errinfo; /* * PCI Bus Space allocation data structure. * * The resource mapping functions rmalloc() and rmfree() are used * to manage the PCI bus I/O, small window, and memory address * spaces. * * This info is used to assign PCI bus space addresses to cards * via their BARs and to the callers of the pcibr_piospace_alloc() * interface. * * Users of the pcibr_piospace_alloc() interface, such as the VME * Universe chip, need PCI bus space that is not acquired by BARs. * Most of these users need "large" amounts of PIO space (typically * in Megabytes), and they generally tend to take once and never * release. */ struct pciio_win_map_s bs_io_win_map; /* I/O addr space */ struct pciio_win_map_s bs_swin_map; /* Small window addr space */ struct pciio_win_map_s bs_mem_win_map; /* Memory addr space */ struct resource bs_io_win_root_resource; /* I/O addr space */ struct resource bs_swin_root_resource; /* Small window addr space */ struct resource bs_mem_win_root_resource; /* Memory addr space */ int bs_bus_addr_status; /* Bus space status */ #define PCIBR_BUS_ADDR_MEM_FREED 1 /* Reserved PROM mem addr freed */ #define PCIBR_BUS_ADDR_IO_FREED 2 /* Reserved PROM I/O addr freed */ struct bs_errintr_stat_s { uint32_t bs_errcount_total; uint32_t bs_lasterr_timestamp; uint32_t bs_lasterr_snapshot; } bs_errintr_stat[PCIBR_ISR_MAX_ERRS]; /* * Bridge-wide endianness control for * large-window PIO mappings * * These fields are set to PCIIO_BYTE_SWAP * or PCIIO_WORD_VALUES once the swapper * has been configured, one way or the other, * for the direct windows. If they are zero, * nobody has a PIO mapping through that window, * and the swapper can be set either way. */ unsigned bs_pio_end_io; unsigned bs_pio_end_mem; }; #define PCIBR_ERRTIME_THRESHOLD (100) #define PCIBR_ERRRATE_THRESHOLD (100) /* * pcibr will respond to hints dropped in its vertex * using the following structure. */ struct pcibr_hints_s { /* ph_host_slot is actually +1 so "0" means "no host" */ pciio_slot_t ph_host_slot[8]; /* REQ/GNT/INT in use by ... */ unsigned ph_rrb_fixed; /* do not change RRB allocations */ unsigned ph_hands_off; /* prevent further pcibr operations */ rrb_alloc_funct_t rrb_alloc_funct; /* do dynamic rrb allocation */ pcibr_intr_bits_f *ph_intr_bits; /* map PCI INT[ABCD] to Bridge Int(n) */ }; /* * Number of bridge non-fatal error interrupts we can see before * we decide to disable that interrupt. */ #define PCIBR_ERRINTR_DISABLE_LEVEL 10000 /* ===================================================================== * Bridge (pcibr) state management functions * * pcibr_soft_get is here because we do it in a lot * of places and I want to make sure they all stay * in step with each other. * * pcibr_soft_set is here because I want it to be * closely associated with pcibr_soft_get, even * though it is only called in one place. */ #define pcibr_soft_get(v) ((pcibr_soft_t)hwgraph_fastinfo_get((v))) #define pcibr_soft_set(v,i) (hwgraph_fastinfo_set((v), (arbitrary_info_t)(i))) /* * mem alloc/free macros */ #define NEWAf(ptr,n,f) (ptr = snia_kmem_zalloc((n)*sizeof (*(ptr)))) #define NEWA(ptr,n) (ptr = snia_kmem_zalloc((n)*sizeof (*(ptr)))) #define DELA(ptr,n) (kfree(ptr)) #define NEWf(ptr,f) NEWAf(ptr,1,f) #define NEW(ptr) NEWA(ptr,1) #define DEL(ptr) DELA(ptr,1) /* * Additional PIO spaces per slot are * recorded in this structure. */ struct pciio_piospace_s { pciio_piospace_t next; /* another space for this device */ char free; /* 1 if free, 0 if in use */ pciio_space_t space; /* Which space is in use */ iopaddr_t start; /* Starting address of the PIO space */ size_t count; /* size of PIO space */ }; /* Use io spin locks. This ensures that all the PIO writes from a particular * CPU to a particular IO device are synched before the start of the next * set of PIO operations to the same device. */ #ifdef PCI_LATER #define pcibr_lock(pcibr_soft) io_splock(pcibr_soft->bs_lock) #define pcibr_unlock(pcibr_soft, s) io_spunlock(pcibr_soft->bs_lock,s) #else #define pcibr_lock(pcibr_soft) 1 #define pcibr_unlock(pcibr_soft, s) #endif /* PCI_LATER */ #define PCIBR_VALID_SLOT(ps, s) (s < PCIBR_NUM_SLOTS(ps)) #define PCIBR_D64_BASE_UNSET (0xFFFFFFFFFFFFFFFF) #define PCIBR_D32_BASE_UNSET (0xFFFFFFFF) #define INFO_LBL_PCIBR_ASIC_REV "_pcibr_asic_rev" #define PCIBR_SOFT_LIST 1 #if PCIBR_SOFT_LIST typedef struct pcibr_list_s *pcibr_list_p; struct pcibr_list_s { pcibr_list_p bl_next; pcibr_soft_t bl_soft; vertex_hdl_t bl_vhdl; }; #endif /* PCIBR_SOFT_LIST */ // Devices per widget: 2 buses, 2 slots per bus, 8 functions per slot. #define DEV_PER_WIDGET (2*2*8) struct sn_flush_device_list { int bus; int pin; struct bar_list { unsigned long start; unsigned long end; } bar_list[PCI_ROM_RESOURCE]; unsigned long force_int_addr; volatile unsigned long flush_addr; spinlock_t flush_lock; }; struct sn_flush_nasid_entry { struct sn_flush_device_list **widget_p; unsigned long iio_itte1; unsigned long iio_itte2; unsigned long iio_itte3; unsigned long iio_itte4; unsigned long iio_itte5; unsigned long iio_itte6; unsigned long iio_itte7; }; #endif /* _ASM_SN_PCI_PCIBR_PRIVATE_H */