diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/misc/sgi-xp/xp.h')
| -rw-r--r-- | ANDROID_3.4.5/drivers/misc/sgi-xp/xp.h | 358 |
1 files changed, 0 insertions, 358 deletions
diff --git a/ANDROID_3.4.5/drivers/misc/sgi-xp/xp.h b/ANDROID_3.4.5/drivers/misc/sgi-xp/xp.h deleted file mode 100644 index c862cd45..00000000 --- a/ANDROID_3.4.5/drivers/misc/sgi-xp/xp.h +++ /dev/null @@ -1,358 +0,0 @@ -/* - * 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) 2004-2008 Silicon Graphics, Inc. All rights reserved. - */ - -/* - * External Cross Partition (XP) structures and defines. - */ - -#ifndef _DRIVERS_MISC_SGIXP_XP_H -#define _DRIVERS_MISC_SGIXP_XP_H - -#include <linux/mutex.h> - -#if defined CONFIG_X86_UV || defined CONFIG_IA64_SGI_UV -#include <asm/uv/uv.h> -#define is_uv() is_uv_system() -#endif - -#ifndef is_uv -#define is_uv() 0 -#endif - -#if defined CONFIG_IA64 -#include <asm/sn/arch.h> /* defines is_shub1() and is_shub2() */ -#define is_shub() ia64_platform_is("sn2") -#endif - -#ifndef is_shub1 -#define is_shub1() 0 -#endif - -#ifndef is_shub2 -#define is_shub2() 0 -#endif - -#ifndef is_shub -#define is_shub() 0 -#endif - -#ifdef USE_DBUG_ON -#define DBUG_ON(condition) BUG_ON(condition) -#else -#define DBUG_ON(condition) -#endif - -/* - * Define the maximum number of partitions the system can possibly support. - * It is based on the maximum number of hardware partitionable regions. The - * term 'region' in this context refers to the minimum number of nodes that - * can comprise an access protection grouping. The access protection is in - * regards to memory, IPI and IOI. - * - * The maximum number of hardware partitionable regions is equal to the - * maximum number of nodes in the entire system divided by the minimum number - * of nodes that comprise an access protection grouping. - */ -#define XP_MAX_NPARTITIONS_SN2 64 -#define XP_MAX_NPARTITIONS_UV 256 - -/* - * XPC establishes channel connections between the local partition and any - * other partition that is currently up. Over these channels, kernel-level - * `users' can communicate with their counterparts on the other partitions. - * - * If the need for additional channels arises, one can simply increase - * XPC_MAX_NCHANNELS accordingly. If the day should come where that number - * exceeds the absolute MAXIMUM number of channels possible (eight), then one - * will need to make changes to the XPC code to accommodate for this. - * - * The absolute maximum number of channels possible is limited to eight for - * performance reasons on sn2 hardware. The internal cross partition structures - * require sixteen bytes per channel, and eight allows all of this - * interface-shared info to fit in one 128-byte cacheline. - */ -#define XPC_MEM_CHANNEL 0 /* memory channel number */ -#define XPC_NET_CHANNEL 1 /* network channel number */ - -#define XPC_MAX_NCHANNELS 2 /* max #of channels allowed */ - -#if XPC_MAX_NCHANNELS > 8 -#error XPC_MAX_NCHANNELS exceeds absolute MAXIMUM possible. -#endif - -/* - * Define macro, XPC_MSG_SIZE(), is provided for the user - * that wants to fit as many msg entries as possible in a given memory size - * (e.g. a memory page). - */ -#define XPC_MSG_MAX_SIZE 128 -#define XPC_MSG_HDR_MAX_SIZE 16 -#define XPC_MSG_PAYLOAD_MAX_SIZE (XPC_MSG_MAX_SIZE - XPC_MSG_HDR_MAX_SIZE) - -#define XPC_MSG_SIZE(_payload_size) \ - ALIGN(XPC_MSG_HDR_MAX_SIZE + (_payload_size), \ - is_uv() ? 64 : 128) - - -/* - * Define the return values and values passed to user's callout functions. - * (It is important to add new value codes at the end just preceding - * xpUnknownReason, which must have the highest numerical value.) - */ -enum xp_retval { - xpSuccess = 0, - - xpNotConnected, /* 1: channel is not connected */ - xpConnected, /* 2: channel connected (opened) */ - xpRETIRED1, /* 3: (formerly xpDisconnected) */ - - xpMsgReceived, /* 4: message received */ - xpMsgDelivered, /* 5: message delivered and acknowledged */ - - xpRETIRED2, /* 6: (formerly xpTransferFailed) */ - - xpNoWait, /* 7: operation would require wait */ - xpRetry, /* 8: retry operation */ - xpTimeout, /* 9: timeout in xpc_allocate_msg_wait() */ - xpInterrupted, /* 10: interrupted wait */ - - xpUnequalMsgSizes, /* 11: message size disparity between sides */ - xpInvalidAddress, /* 12: invalid address */ - - xpNoMemory, /* 13: no memory available for XPC structures */ - xpLackOfResources, /* 14: insufficient resources for operation */ - xpUnregistered, /* 15: channel is not registered */ - xpAlreadyRegistered, /* 16: channel is already registered */ - - xpPartitionDown, /* 17: remote partition is down */ - xpNotLoaded, /* 18: XPC module is not loaded */ - xpUnloading, /* 19: this side is unloading XPC module */ - - xpBadMagic, /* 20: XPC MAGIC string not found */ - - xpReactivating, /* 21: remote partition was reactivated */ - - xpUnregistering, /* 22: this side is unregistering channel */ - xpOtherUnregistering, /* 23: other side is unregistering channel */ - - xpCloneKThread, /* 24: cloning kernel thread */ - xpCloneKThreadFailed, /* 25: cloning kernel thread failed */ - - xpNoHeartbeat, /* 26: remote partition has no heartbeat */ - - xpPioReadError, /* 27: PIO read error */ - xpPhysAddrRegFailed, /* 28: registration of phys addr range failed */ - - xpRETIRED3, /* 29: (formerly xpBteDirectoryError) */ - xpRETIRED4, /* 30: (formerly xpBtePoisonError) */ - xpRETIRED5, /* 31: (formerly xpBteWriteError) */ - xpRETIRED6, /* 32: (formerly xpBteAccessError) */ - xpRETIRED7, /* 33: (formerly xpBtePWriteError) */ - xpRETIRED8, /* 34: (formerly xpBtePReadError) */ - xpRETIRED9, /* 35: (formerly xpBteTimeOutError) */ - xpRETIRED10, /* 36: (formerly xpBteXtalkError) */ - xpRETIRED11, /* 37: (formerly xpBteNotAvailable) */ - xpRETIRED12, /* 38: (formerly xpBteUnmappedError) */ - - xpBadVersion, /* 39: bad version number */ - xpVarsNotSet, /* 40: the XPC variables are not set up */ - xpNoRsvdPageAddr, /* 41: unable to get rsvd page's phys addr */ - xpInvalidPartid, /* 42: invalid partition ID */ - xpLocalPartid, /* 43: local partition ID */ - - xpOtherGoingDown, /* 44: other side going down, reason unknown */ - xpSystemGoingDown, /* 45: system is going down, reason unknown */ - xpSystemHalt, /* 46: system is being halted */ - xpSystemReboot, /* 47: system is being rebooted */ - xpSystemPoweroff, /* 48: system is being powered off */ - - xpDisconnecting, /* 49: channel disconnecting (closing) */ - - xpOpenCloseError, /* 50: channel open/close protocol error */ - - xpDisconnected, /* 51: channel disconnected (closed) */ - - xpBteCopyError, /* 52: bte_copy() returned error */ - xpSalError, /* 53: sn SAL error */ - xpRsvdPageNotSet, /* 54: the reserved page is not set up */ - xpPayloadTooBig, /* 55: payload too large for message slot */ - - xpUnsupported, /* 56: unsupported functionality or resource */ - xpNeedMoreInfo, /* 57: more info is needed by SAL */ - - xpGruCopyError, /* 58: gru_copy_gru() returned error */ - xpGruSendMqError, /* 59: gru send message queue related error */ - - xpBadChannelNumber, /* 60: invalid channel number */ - xpBadMsgType, /* 61: invalid message type */ - xpBiosError, /* 62: BIOS error */ - - xpUnknownReason /* 63: unknown reason - must be last in enum */ -}; - -/* - * Define the callout function type used by XPC to update the user on - * connection activity and state changes via the user function registered - * by xpc_connect(). - * - * Arguments: - * - * reason - reason code. - * partid - partition ID associated with condition. - * ch_number - channel # associated with condition. - * data - pointer to optional data. - * key - pointer to optional user-defined value provided as the "key" - * argument to xpc_connect(). - * - * A reason code of xpConnected indicates that a connection has been - * established to the specified partition on the specified channel. The data - * argument indicates the max number of entries allowed in the message queue. - * - * A reason code of xpMsgReceived indicates that a XPC message arrived from - * the specified partition on the specified channel. The data argument - * specifies the address of the message's payload. The user must call - * xpc_received() when finished with the payload. - * - * All other reason codes indicate failure. The data argmument is NULL. - * When a failure reason code is received, one can assume that the channel - * is not connected. - */ -typedef void (*xpc_channel_func) (enum xp_retval reason, short partid, - int ch_number, void *data, void *key); - -/* - * Define the callout function type used by XPC to notify the user of - * messages received and delivered via the user function registered by - * xpc_send_notify(). - * - * Arguments: - * - * reason - reason code. - * partid - partition ID associated with condition. - * ch_number - channel # associated with condition. - * key - pointer to optional user-defined value provided as the "key" - * argument to xpc_send_notify(). - * - * A reason code of xpMsgDelivered indicates that the message was delivered - * to the intended recipient and that they have acknowledged its receipt by - * calling xpc_received(). - * - * All other reason codes indicate failure. - * - * NOTE: The user defined function must be callable by an interrupt handler - * and thus cannot block. - */ -typedef void (*xpc_notify_func) (enum xp_retval reason, short partid, - int ch_number, void *key); - -/* - * The following is a registration entry. There is a global array of these, - * one per channel. It is used to record the connection registration made - * by the users of XPC. As long as a registration entry exists, for any - * partition that comes up, XPC will attempt to establish a connection on - * that channel. Notification that a connection has been made will occur via - * the xpc_channel_func function. - * - * The 'func' field points to the function to call when aynchronous - * notification is required for such events as: a connection established/lost, - * or an incoming message received, or an error condition encountered. A - * non-NULL 'func' field indicates that there is an active registration for - * the channel. - */ -struct xpc_registration { - struct mutex mutex; - xpc_channel_func func; /* function to call */ - void *key; /* pointer to user's key */ - u16 nentries; /* #of msg entries in local msg queue */ - u16 entry_size; /* message queue's message entry size */ - u32 assigned_limit; /* limit on #of assigned kthreads */ - u32 idle_limit; /* limit on #of idle kthreads */ -} ____cacheline_aligned; - -#define XPC_CHANNEL_REGISTERED(_c) (xpc_registrations[_c].func != NULL) - -/* the following are valid xpc_send() or xpc_send_notify() flags */ -#define XPC_WAIT 0 /* wait flag */ -#define XPC_NOWAIT 1 /* no wait flag */ - -struct xpc_interface { - void (*connect) (int); - void (*disconnect) (int); - enum xp_retval (*send) (short, int, u32, void *, u16); - enum xp_retval (*send_notify) (short, int, u32, void *, u16, - xpc_notify_func, void *); - void (*received) (short, int, void *); - enum xp_retval (*partid_to_nasids) (short, void *); -}; - -extern struct xpc_interface xpc_interface; - -extern void xpc_set_interface(void (*)(int), - void (*)(int), - enum xp_retval (*)(short, int, u32, void *, u16), - enum xp_retval (*)(short, int, u32, void *, u16, - xpc_notify_func, void *), - void (*)(short, int, void *), - enum xp_retval (*)(short, void *)); -extern void xpc_clear_interface(void); - -extern enum xp_retval xpc_connect(int, xpc_channel_func, void *, u16, - u16, u32, u32); -extern void xpc_disconnect(int); - -static inline enum xp_retval -xpc_send(short partid, int ch_number, u32 flags, void *payload, - u16 payload_size) -{ - return xpc_interface.send(partid, ch_number, flags, payload, - payload_size); -} - -static inline enum xp_retval -xpc_send_notify(short partid, int ch_number, u32 flags, void *payload, - u16 payload_size, xpc_notify_func func, void *key) -{ - return xpc_interface.send_notify(partid, ch_number, flags, payload, - payload_size, func, key); -} - -static inline void -xpc_received(short partid, int ch_number, void *payload) -{ - return xpc_interface.received(partid, ch_number, payload); -} - -static inline enum xp_retval -xpc_partid_to_nasids(short partid, void *nasids) -{ - return xpc_interface.partid_to_nasids(partid, nasids); -} - -extern short xp_max_npartitions; -extern short xp_partition_id; -extern u8 xp_region_size; - -extern unsigned long (*xp_pa) (void *); -extern unsigned long (*xp_socket_pa) (unsigned long); -extern enum xp_retval (*xp_remote_memcpy) (unsigned long, const unsigned long, - size_t); -extern int (*xp_cpu_to_nasid) (int); -extern enum xp_retval (*xp_expand_memprotect) (unsigned long, unsigned long); -extern enum xp_retval (*xp_restrict_memprotect) (unsigned long, unsigned long); - -extern u64 xp_nofault_PIOR_target; -extern int xp_nofault_PIOR(void *); -extern int xp_error_PIOR(void); - -extern struct device *xp; -extern enum xp_retval xp_init_sn2(void); -extern enum xp_retval xp_init_uv(void); -extern void xp_exit_sn2(void); -extern void xp_exit_uv(void); - -#endif /* _DRIVERS_MISC_SGIXP_XP_H */ |