* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 1992-1997,2000-2002 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (C) 1992-1997,2000-2003 Silicon Graphics, Inc. All Rights Reserved.
*/
#ifndef _ASM_SN_KSYS_L1_H
#include <asm/atomic.h>
#include <asm/sn/sv.h>
-
-#ifdef CONFIG_IA64_SGI_SN1
-
-#define BRL1_QSIZE 128 /* power of 2 is more efficient */
-#define BRL1_BUFSZ 264 /* needs to be large enough
- * to hold 2 flags, escaped
- * CRC, type/subchannel byte,
- * and escaped payload
- */
-
-#define BRL1_IQS 32
-#define BRL1_OQS 4
-
-
-typedef struct sc_cq_s {
- u_char buf[BRL1_QSIZE];
- int ipos, opos, tent_next;
-} sc_cq_t;
-
-/* An l1sc_t struct can be associated with the local (C-brick) L1 or an L1
- * on an R-brick. In the R-brick case, the l1sc_t records a vector path
- * to the R-brick's junk bus UART. In the C-brick case, we just use the
- * following flag to denote the local uart.
- *
- * This value can't be confused with a network vector because the least-
- * significant nibble of a network vector cannot be greater than 8.
- */
-#define BRL1_LOCALHUB_UART ((net_vec_t)0xf)
-
-/* L1<->Bedrock reserved subchannels */
-
-/* console channels */
-#define SC_CONS_CPU0 0x00
-#define SC_CONS_CPU1 0x01
-#define SC_CONS_CPU2 0x02
-#define SC_CONS_CPU3 0x03
-
-#define L1_ELSCUART_SUBCH(p) (p)
-#define L1_ELSCUART_CPU(ch) (ch)
-
-#define SC_CONS_SYSTEM CPUS_PER_NODE
-
-/* mapping subchannels to queues */
-#define MAP_IQ(s) (s)
-#define MAP_OQ(s) (s)
-
-#define BRL1_NUM_SUBCHANS 32
-#define BRL1_CMD_SUBCH 16
-#define BRL1_EVENT_SUBCH (BRL1_NUM_SUBCHANS - 1)
-#define BRL1_SUBCH_RSVD 0
-#define BRL1_SUBCH_FREE (-1)
-
-/* constants for L1 hwgraph vertex info */
-#define CBRICK_L1 (__psint_t)1
-#define IOBRICK_L1 (__psint_t)2
-#define RBRICK_L1 (__psint_t)3
-
-
-struct l1sc_s;
-/* Saved off interrupt frame */
-typedef struct brl1_intr_frame {
- int bf_irq; /* irq received */
- void *bf_dev_id; /* device information */
- struct pt_regs *bf_regs; /* register frame */
-} brl1_intr_frame_t;
-
-typedef void (*brl1_notif_t)(int, void *, struct pt_regs *, struct l1sc_s *, int);
-typedef int (*brl1_uartf_t)(struct l1sc_s *);
-
-/* structure for controlling a subchannel */
-typedef struct brl1_sch_s {
- int use; /* if this subchannel is free,
- * use == BRL1_SUBCH_FREE */
- uint target; /* type, rack and slot of component to
- * which this subchannel is directed */
- atomic_t packet_arrived; /* true if packet arrived on
- * this subchannel */
- sc_cq_t * iqp; /* input queue for this subchannel */
- sv_t arrive_sv; /* used to wait for a packet */
- spinlock_t data_lock; /* synchronize access to input queues and
- * other fields of the brl1_sch_s struct */
- brl1_notif_t tx_notify; /* notify higher layer that transmission may
- * continue */
- brl1_notif_t rx_notify; /* notify higher layer that a packet has been
- * received */
- brl1_intr_frame_t irq_frame; /* saved off irq information */
-} brl1_sch_t;
-
-/* br<->l1 protocol states */
-#define BRL1_IDLE 0
-#define BRL1_FLAG 1
-#define BRL1_HDR 2
-#define BRL1_BODY 3
-#define BRL1_ESC 4
-#define BRL1_RESET 7
-
-
-/*
- * l1sc_t structure-- tracks protocol state, open subchannels, etc.
- */
-typedef struct l1sc_s {
- nasid_t nasid; /* nasid with which this instance
- * of the structure is associated */
- moduleid_t modid; /* module id of this brick */
- u_char verbose; /* non-zero if elscuart routines should
- * prefix output */
- net_vec_t uart; /* vector path to UART, or BRL1_LOCALUART */
- int sent; /* number of characters sent */
- int send_len; /* number of characters in send buf */
- brl1_uartf_t putc_f; /* pointer to UART putc function */
- brl1_uartf_t getc_f; /* pointer to UART getc function */
-
- spinlock_t send_lock; /* arbitrates send synchronization */
- spinlock_t recv_lock; /* arbitrates uart receive access */
- spinlock_t subch_lock; /* arbitrates subchannel allocation */
- cpuid_t intr_cpu; /* cpu that receives L1 interrupts */
-
- u_char send_in_use; /* non-zero if send buffer contains an
- * unsent or partially-sent packet */
- u_char fifo_space; /* current depth of UART send FIFO */
-
- u_char brl1_state; /* current state of the receive side */
- u_char brl1_last_hdr; /* last header byte received */
-
- char send[BRL1_BUFSZ]; /* send buffer */
-
- int sol; /* "start of line" (see elscuart routines) */
- int cons_listen; /* non-zero if the elscuart interface should
- * also check the system console subchannel */
- brl1_sch_t subch[BRL1_NUM_SUBCHANS];
- /* subchannels provided by link */
-
- sc_cq_t garbage_q; /* a place to put unsolicited packets */
- sc_cq_t oq[BRL1_OQS]; /* elscuart output queues */
-} l1sc_t;
-
-
-/* error codes */
-#define BRL1_VALID 0
-#define BRL1_FULL_Q (-1)
-#define BRL1_CRC (-2)
-#define BRL1_PROTOCOL (-3)
-#define BRL1_NO_MESSAGE (-4)
-#define BRL1_LINK (-5)
-#define BRL1_BUSY (-6)
-
-#define SC_SUCCESS BRL1_VALID
-#define SC_NMSG BRL1_NO_MESSAGE
-#define SC_BUSY BRL1_BUSY
-#define SC_NOPEN (-7)
-#define SC_BADSUBCH (-8)
-#define SC_TIMEDOUT (-9)
-#define SC_NSUBCH (-10)
-
-#endif /* CONFIG_IA64_SGI_SN1 */
-
/* L1 Target Addresses */
/*
* L1 commands and responses use source/target addresses that are
* id (L1 functionality is divided into several independent "tasks"
* that can each receive command requests and transmit responses)
*/
-#ifdef CONFIG_IA64_SGI_SN1
-#define L1_ADDR_TYPE_SHFT 28
-#define L1_ADDR_TYPE_MASK 0xF0000000
-#else
-#define L1_ADDR_TYPE_SHFT 8
-#define L1_ADDR_TYPE_MASK 0xFF00
-#endif /* CONFIG_IA64_SGI_SN1 */
#define L1_ADDR_TYPE_L1 0x00 /* L1 system controller */
#define L1_ADDR_TYPE_L2 0x01 /* L2 system controller */
#define L1_ADDR_TYPE_L3 0x02 /* L3 system controller */
#define L1_ADDR_TYPE_CBRICK 0x03 /* attached C brick */
#define L1_ADDR_TYPE_IOBRICK 0x04 /* attached I/O brick */
-
-#ifdef CONFIG_IA64_SGI_SN1
-#define L1_ADDR_RACK_SHFT 18
-#define L1_ADDR_RACK_MASK 0x0FFC0000
-#define L1_ADDR_RACK_LOCAL 0x3ff /* local brick's rack */
-#else
-#define L1_ADDR_RACK_SHFT 16
-#define L1_ADDR_RACK_MASK 0xFFFF00
-#define L1_ADDR_RACK_LOCAL 0xffff /* local brick's rack */
-#endif /* CONFIG_IA64_SGI_SN1 */
-
-#ifdef CONFIG_IA64_SGI_SN1
-#define L1_ADDR_BAY_SHFT 12
-#define L1_ADDR_BAY_MASK 0x0003F000
-#define L1_ADDR_BAY_LOCAL 0x3f /* local brick's bay */
-#else
-#define L1_ADDR_BAY_SHFT 0
-#define L1_ADDR_BAY_MASK 0xFF
-#define L1_ADDR_BAY_LOCAL 0xff /* local brick's bay */
-#endif /* CONFIG_IA64_SGI_SN1 */
-
#define L1_ADDR_TASK_SHFT 0
#define L1_ADDR_TASK_MASK 0x0000001F
#define L1_ADDR_TASK_INVALID 0x00 /* invalid task */
#define L1_BRICKTYPE_X 0x58 /* X */
#define L1_BRICKTYPE_X2 0x59 /* Y */
#define L1_BRICKTYPE_N 0x4e /* N */
+#define L1_BRICKTYPE_PE 0x25 /* % */
#define L1_BRICKTYPE_PX 0x23 /* # */
+#define L1_BRICKTYPE_IX 0x3d /* = */
/* EEPROM codes (for the "read EEPROM" request) */
/* c brick */
#define bzero(d, n) memset((d), 0, (n))
-#ifdef CONFIG_IA64_SGI_SN1
-
-#define SC_EVENT_CLASS_MASK ((unsigned short)0xff00)
-
-/* public interfaces to L1 system controller */
-
-int sc_open( l1sc_t *sc, uint target );
-int sc_close( l1sc_t *sc, int ch );
-int sc_construct_msg( l1sc_t *sc, int ch,
- char *msg, int msg_len,
- uint addr_task, short req_code,
- int req_nargs, ... );
-int sc_interpret_resp( char *resp, int resp_nargs, ... );
-int sc_send( l1sc_t *sc, int ch, char *msg, int len, int wait );
-int sc_recv( l1sc_t *sc, int ch, char *msg, int *len, uint64_t block );
-int sc_command( l1sc_t *sc, int ch, char *cmd, char *resp, int *len );
-int sc_command_kern( l1sc_t *sc, int ch, char *cmd, char *resp, int *len );
-int sc_poll( l1sc_t *sc, int ch );
-void sc_init( l1sc_t *sc, nasid_t nasid, net_vec_t uart );
-void sc_intr_enable( l1sc_t *sc );
-
-int elsc_rack_bay_get(l1sc_t *e, uint *rack, uint *bay);
-int elsc_rack_bay_type_get(l1sc_t *e, uint *rack,
- uint *bay, uint *brick_type);
-int elsc_cons_subch(l1sc_t *e, uint ch);
-int elsc_cons_node(l1sc_t *e);
-int elsc_display_line(l1sc_t *e, char *line, int lnum);
-
-extern l1sc_t *get_elsc( void );
-#define get_l1sc get_elsc
-#define get_master_l1sc get_l1sc
-
-int iobrick_rack_bay_type_get( l1sc_t *sc, uint *rack,
- uint *bay, uint *brick_type );
-int iobrick_module_get( l1sc_t *sc );
-int iobrick_pci_slot_pwr( l1sc_t *sc, int bus, int slot, int up );
-int iobrick_pci_bus_pwr( l1sc_t *sc, int bus, int up );
-int iobrick_sc_version( l1sc_t *sc, char *result );
-#else
int elsc_display_line(nasid_t nasid, char *line, int lnum);
int iobrick_rack_bay_type_get( nasid_t nasid, uint *rack,
uint *bay, uint *brick_type );
int iobrick_module_get( nasid_t nasid );
-#endif /* CONFIG_IA64_SGI_SN1 */
#endif /* _ASM_SN_KSYS_L1_H */
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