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sgi-xp: isolate xpc_vars structure to sn2 only
Isolate the xpc_vars structure of XPC's reserved page to sn2 only. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
committed by
Linus Torvalds
parent
e17d416b1b
commit
33ba3c7724
+97
-432
File diff suppressed because it is too large
Load Diff
@@ -1165,7 +1165,7 @@ xpc_disconnect_callout(struct xpc_channel *ch, enum xp_retval reason)
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* Wait for a message entry to become available for the specified channel,
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* but don't wait any longer than 1 jiffy.
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*/
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static enum xp_retval
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enum xp_retval
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xpc_allocate_msg_wait(struct xpc_channel *ch)
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{
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enum xp_retval ret;
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@@ -1191,96 +1191,6 @@ xpc_allocate_msg_wait(struct xpc_channel *ch)
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return ret;
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}
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/*
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* Allocate an entry for a message from the message queue associated with the
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* specified channel.
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*/
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static enum xp_retval
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xpc_allocate_msg(struct xpc_channel *ch, u32 flags,
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struct xpc_msg **address_of_msg)
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{
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struct xpc_msg *msg;
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enum xp_retval ret;
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s64 put;
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/* this reference will be dropped in xpc_send_msg() */
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xpc_msgqueue_ref(ch);
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if (ch->flags & XPC_C_DISCONNECTING) {
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xpc_msgqueue_deref(ch);
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return ch->reason;
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}
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if (!(ch->flags & XPC_C_CONNECTED)) {
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xpc_msgqueue_deref(ch);
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return xpNotConnected;
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}
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/*
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* Get the next available message entry from the local message queue.
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* If none are available, we'll make sure that we grab the latest
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* GP values.
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*/
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ret = xpTimeout;
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while (1) {
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put = ch->w_local_GP.put;
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rmb(); /* guarantee that .put loads before .get */
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if (put - ch->w_remote_GP.get < ch->local_nentries) {
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/* There are available message entries. We need to try
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* to secure one for ourselves. We'll do this by trying
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* to increment w_local_GP.put as long as someone else
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* doesn't beat us to it. If they do, we'll have to
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* try again.
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*/
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if (cmpxchg(&ch->w_local_GP.put, put, put + 1) == put) {
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/* we got the entry referenced by put */
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break;
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}
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continue; /* try again */
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}
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/*
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* There aren't any available msg entries at this time.
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*
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* In waiting for a message entry to become available,
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* we set a timeout in case the other side is not
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* sending completion IPIs. This lets us fake an IPI
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* that will cause the IPI handler to fetch the latest
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* GP values as if an IPI was sent by the other side.
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*/
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if (ret == xpTimeout)
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xpc_IPI_send_local_msgrequest(ch);
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if (flags & XPC_NOWAIT) {
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xpc_msgqueue_deref(ch);
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return xpNoWait;
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}
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ret = xpc_allocate_msg_wait(ch);
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if (ret != xpInterrupted && ret != xpTimeout) {
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xpc_msgqueue_deref(ch);
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return ret;
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}
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}
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/* get the message's address and initialize it */
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msg = (struct xpc_msg *)((u64)ch->local_msgqueue +
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(put % ch->local_nentries) * ch->msg_size);
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DBUG_ON(msg->flags != 0);
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msg->number = put;
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dev_dbg(xpc_chan, "w_local_GP.put changed to %ld; msg=0x%p, "
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"msg_number=%ld, partid=%d, channel=%d\n", put + 1,
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(void *)msg, msg->number, ch->partid, ch->number);
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*address_of_msg = msg;
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return xpSuccess;
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}
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/*
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* Allocate an entry for a message from the message queue associated with the
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* specified channel. NOTE that this routine can sleep waiting for a message
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@@ -1317,144 +1227,6 @@ xpc_initiate_allocate(short partid, int ch_number, u32 flags, void **payload)
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return ret;
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}
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/*
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* Now we actually send the messages that are ready to be sent by advancing
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* the local message queue's Put value and then send an IPI to the recipient
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* partition.
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*/
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static void
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xpc_send_msgs(struct xpc_channel *ch, s64 initial_put)
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{
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struct xpc_msg *msg;
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s64 put = initial_put + 1;
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int send_IPI = 0;
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while (1) {
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while (1) {
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if (put == ch->w_local_GP.put)
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break;
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msg = (struct xpc_msg *)((u64)ch->local_msgqueue +
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(put % ch->local_nentries) *
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ch->msg_size);
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if (!(msg->flags & XPC_M_READY))
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break;
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put++;
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}
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if (put == initial_put) {
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/* nothing's changed */
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break;
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}
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if (cmpxchg_rel(&ch->local_GP->put, initial_put, put) !=
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initial_put) {
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/* someone else beat us to it */
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DBUG_ON(ch->local_GP->put < initial_put);
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break;
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}
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/* we just set the new value of local_GP->put */
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dev_dbg(xpc_chan, "local_GP->put changed to %ld, partid=%d, "
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"channel=%d\n", put, ch->partid, ch->number);
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send_IPI = 1;
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/*
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* We need to ensure that the message referenced by
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* local_GP->put is not XPC_M_READY or that local_GP->put
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* equals w_local_GP.put, so we'll go have a look.
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*/
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initial_put = put;
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}
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if (send_IPI)
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xpc_IPI_send_msgrequest(ch);
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}
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/*
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* Common code that does the actual sending of the message by advancing the
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* local message queue's Put value and sends an IPI to the partition the
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* message is being sent to.
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*/
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static enum xp_retval
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xpc_send_msg(struct xpc_channel *ch, struct xpc_msg *msg, u8 notify_type,
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xpc_notify_func func, void *key)
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{
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enum xp_retval ret = xpSuccess;
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struct xpc_notify *notify = notify;
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s64 put, msg_number = msg->number;
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DBUG_ON(notify_type == XPC_N_CALL && func == NULL);
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DBUG_ON((((u64)msg - (u64)ch->local_msgqueue) / ch->msg_size) !=
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msg_number % ch->local_nentries);
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DBUG_ON(msg->flags & XPC_M_READY);
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if (ch->flags & XPC_C_DISCONNECTING) {
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/* drop the reference grabbed in xpc_allocate_msg() */
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xpc_msgqueue_deref(ch);
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return ch->reason;
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}
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if (notify_type != 0) {
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/*
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* Tell the remote side to send an ACK interrupt when the
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* message has been delivered.
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*/
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msg->flags |= XPC_M_INTERRUPT;
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atomic_inc(&ch->n_to_notify);
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notify = &ch->notify_queue[msg_number % ch->local_nentries];
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notify->func = func;
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notify->key = key;
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notify->type = notify_type;
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/* >>> is a mb() needed here? */
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if (ch->flags & XPC_C_DISCONNECTING) {
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/*
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* An error occurred between our last error check and
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* this one. We will try to clear the type field from
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* the notify entry. If we succeed then
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* xpc_disconnect_channel() didn't already process
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* the notify entry.
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*/
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if (cmpxchg(¬ify->type, notify_type, 0) ==
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notify_type) {
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atomic_dec(&ch->n_to_notify);
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ret = ch->reason;
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}
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/* drop the reference grabbed in xpc_allocate_msg() */
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xpc_msgqueue_deref(ch);
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return ret;
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}
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}
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msg->flags |= XPC_M_READY;
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/*
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* The preceding store of msg->flags must occur before the following
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* load of ch->local_GP->put.
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*/
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mb();
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/* see if the message is next in line to be sent, if so send it */
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put = ch->local_GP->put;
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if (put == msg_number)
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xpc_send_msgs(ch, put);
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/* drop the reference grabbed in xpc_allocate_msg() */
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xpc_msgqueue_deref(ch);
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return ret;
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}
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/*
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* Send a message previously allocated using xpc_initiate_allocate() on the
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* specified channel connected to the specified partition.
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@@ -1585,66 +1357,6 @@ xpc_deliver_msg(struct xpc_channel *ch)
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}
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}
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/*
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* Now we actually acknowledge the messages that have been delivered and ack'd
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* by advancing the cached remote message queue's Get value and if requested
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* send an IPI to the message sender's partition.
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*/
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static void
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xpc_acknowledge_msgs(struct xpc_channel *ch, s64 initial_get, u8 msg_flags)
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{
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struct xpc_msg *msg;
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s64 get = initial_get + 1;
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int send_IPI = 0;
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while (1) {
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while (1) {
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if (get == ch->w_local_GP.get)
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break;
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msg = (struct xpc_msg *)((u64)ch->remote_msgqueue +
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(get % ch->remote_nentries) *
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ch->msg_size);
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if (!(msg->flags & XPC_M_DONE))
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break;
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msg_flags |= msg->flags;
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get++;
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}
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if (get == initial_get) {
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/* nothing's changed */
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break;
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}
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if (cmpxchg_rel(&ch->local_GP->get, initial_get, get) !=
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initial_get) {
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/* someone else beat us to it */
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DBUG_ON(ch->local_GP->get <= initial_get);
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break;
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}
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/* we just set the new value of local_GP->get */
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dev_dbg(xpc_chan, "local_GP->get changed to %ld, partid=%d, "
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"channel=%d\n", get, ch->partid, ch->number);
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send_IPI = (msg_flags & XPC_M_INTERRUPT);
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/*
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* We need to ensure that the message referenced by
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* local_GP->get is not XPC_M_DONE or that local_GP->get
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* equals w_local_GP.get, so we'll go have a look.
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*/
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initial_get = get;
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}
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if (send_IPI)
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xpc_IPI_send_msgrequest(ch);
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}
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/*
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* Acknowledge receipt of a delivered message.
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*
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@@ -1668,35 +1380,12 @@ xpc_initiate_received(short partid, int ch_number, void *payload)
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struct xpc_partition *part = &xpc_partitions[partid];
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struct xpc_channel *ch;
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struct xpc_msg *msg = XPC_MSG_ADDRESS(payload);
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s64 get, msg_number = msg->number;
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DBUG_ON(partid < 0 || partid >= xp_max_npartitions);
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DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
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ch = &part->channels[ch_number];
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dev_dbg(xpc_chan, "msg=0x%p, msg_number=%ld, partid=%d, channel=%d\n",
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(void *)msg, msg_number, ch->partid, ch->number);
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DBUG_ON((((u64)msg - (u64)ch->remote_msgqueue) / ch->msg_size) !=
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msg_number % ch->remote_nentries);
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DBUG_ON(msg->flags & XPC_M_DONE);
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msg->flags |= XPC_M_DONE;
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/*
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* The preceding store of msg->flags must occur before the following
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* load of ch->local_GP->get.
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*/
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mb();
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/*
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* See if this message is next in line to be acknowledged as having
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* been delivered.
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*/
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get = ch->local_GP->get;
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if (get == msg_number)
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xpc_acknowledge_msgs(ch, get, msg->flags);
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xpc_received_msg(ch, msg);
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/* the call to xpc_msgqueue_ref() was done by xpc_deliver_msg() */
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xpc_msgqueue_deref(ch);
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+101
-51
@@ -148,12 +148,14 @@ static struct ctl_table_header *xpc_sysctl;
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int xpc_disengage_request_timedout;
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/* #of IRQs received */
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static atomic_t xpc_act_IRQ_rcvd;
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atomic_t xpc_act_IRQ_rcvd;
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/* IRQ handler notifies this wait queue on receipt of an IRQ */
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static DECLARE_WAIT_QUEUE_HEAD(xpc_act_IRQ_wq);
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DECLARE_WAIT_QUEUE_HEAD(xpc_act_IRQ_wq);
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static unsigned long xpc_hb_check_timeout;
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static struct timer_list xpc_hb_timer;
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void *xpc_heartbeating_to_mask;
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/* notification that the xpc_hb_checker thread has exited */
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static DECLARE_COMPLETION(xpc_hb_checker_exited);
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@@ -161,8 +163,6 @@ static DECLARE_COMPLETION(xpc_hb_checker_exited);
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/* notification that the xpc_discovery thread has exited */
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static DECLARE_COMPLETION(xpc_discovery_exited);
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static struct timer_list xpc_hb_timer;
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static void xpc_kthread_waitmsgs(struct xpc_partition *, struct xpc_channel *);
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static int xpc_system_reboot(struct notifier_block *, unsigned long, void *);
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@@ -176,12 +176,54 @@ static struct notifier_block xpc_die_notifier = {
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};
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enum xp_retval (*xpc_rsvd_page_init) (struct xpc_rsvd_page *rp);
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void (*xpc_heartbeat_init) (void);
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void (*xpc_heartbeat_exit) (void);
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void (*xpc_increment_heartbeat) (void);
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void (*xpc_offline_heartbeat) (void);
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void (*xpc_online_heartbeat) (void);
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void (*xpc_check_remote_hb) (void);
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enum xp_retval (*xpc_make_first_contact) (struct xpc_partition *part);
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u64 (*xpc_get_IPI_flags) (struct xpc_partition *part);
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struct xpc_msg *(*xpc_get_deliverable_msg) (struct xpc_channel *ch);
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void (*xpc_initiate_partition_activation) (struct xpc_rsvd_page *remote_rp,
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u64 remote_rp_pa, int nasid);
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void (*xpc_process_act_IRQ_rcvd) (int n_IRQs_expected);
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enum xp_retval (*xpc_setup_infrastructure) (struct xpc_partition *part);
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void (*xpc_teardown_infrastructure) (struct xpc_partition *part);
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void (*xpc_mark_partition_engaged) (struct xpc_partition *part);
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void (*xpc_mark_partition_disengaged) (struct xpc_partition *part);
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void (*xpc_request_partition_disengage) (struct xpc_partition *part);
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void (*xpc_cancel_partition_disengage_request) (struct xpc_partition *part);
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u64 (*xpc_partition_engaged) (u64 partid_mask);
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u64 (*xpc_partition_disengage_requested) (u64 partid_mask);
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void (*xpc_clear_partition_engaged) (u64 partid_mask);
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void (*xpc_clear_partition_disengage_request) (u64 partid_mask);
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void (*xpc_IPI_send_local_activate) (int from_nasid);
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void (*xpc_IPI_send_activated) (struct xpc_partition *part);
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void (*xpc_IPI_send_local_reactivate) (int from_nasid);
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void (*xpc_IPI_send_disengage) (struct xpc_partition *part);
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void (*xpc_IPI_send_closerequest) (struct xpc_channel *ch,
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unsigned long *irq_flags);
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void (*xpc_IPI_send_closereply) (struct xpc_channel *ch,
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unsigned long *irq_flags);
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void (*xpc_IPI_send_openrequest) (struct xpc_channel *ch,
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unsigned long *irq_flags);
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void (*xpc_IPI_send_openreply) (struct xpc_channel *ch,
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unsigned long *irq_flags);
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enum xp_retval (*xpc_allocate_msg) (struct xpc_channel *ch, u32 flags,
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struct xpc_msg **address_of_msg);
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enum xp_retval (*xpc_send_msg) (struct xpc_channel *ch, struct xpc_msg *msg,
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u8 notify_type, xpc_notify_func func,
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void *key);
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void (*xpc_received_msg) (struct xpc_channel *ch, struct xpc_msg *msg);
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/*
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* Timer function to enforce the timelimit on the partition disengage request.
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@@ -218,7 +260,7 @@ xpc_act_IRQ_handler(int irq, void *dev_id)
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static void
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xpc_hb_beater(unsigned long dummy)
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{
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xpc_vars->heartbeat++;
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xpc_increment_heartbeat();
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if (time_after_eq(jiffies, xpc_hb_check_timeout))
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wake_up_interruptible(&xpc_act_IRQ_wq);
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@@ -227,6 +269,22 @@ xpc_hb_beater(unsigned long dummy)
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add_timer(&xpc_hb_timer);
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}
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static void
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||||
xpc_start_hb_beater(void)
|
||||
{
|
||||
xpc_heartbeat_init();
|
||||
init_timer(&xpc_hb_timer);
|
||||
xpc_hb_timer.function = xpc_hb_beater;
|
||||
xpc_hb_beater(0);
|
||||
}
|
||||
|
||||
static void
|
||||
xpc_stop_hb_beater(void)
|
||||
{
|
||||
del_timer_sync(&xpc_hb_timer);
|
||||
xpc_heartbeat_exit();
|
||||
}
|
||||
|
||||
/*
|
||||
* This thread is responsible for nearly all of the partition
|
||||
* activation/deactivation.
|
||||
@@ -244,7 +302,7 @@ xpc_hb_checker(void *ignore)
|
||||
|
||||
/* set our heartbeating to other partitions into motion */
|
||||
xpc_hb_check_timeout = jiffies + (xpc_hb_check_interval * HZ);
|
||||
xpc_hb_beater(0);
|
||||
xpc_start_hb_beater();
|
||||
|
||||
while (!xpc_exiting) {
|
||||
|
||||
@@ -274,11 +332,8 @@ xpc_hb_checker(void *ignore)
|
||||
dev_dbg(xpc_part, "found an IRQ to process; will be "
|
||||
"resetting xpc_hb_check_timeout\n");
|
||||
|
||||
last_IRQ_count += xpc_identify_act_IRQ_sender();
|
||||
if (last_IRQ_count < new_IRQ_count) {
|
||||
/* retry once to help avoid missing AMO */
|
||||
(void)xpc_identify_act_IRQ_sender();
|
||||
}
|
||||
xpc_process_act_IRQ_rcvd(new_IRQ_count -
|
||||
last_IRQ_count);
|
||||
last_IRQ_count = new_IRQ_count;
|
||||
|
||||
xpc_hb_check_timeout = jiffies +
|
||||
@@ -294,6 +349,8 @@ xpc_hb_checker(void *ignore)
|
||||
xpc_exiting));
|
||||
}
|
||||
|
||||
xpc_stop_hb_beater();
|
||||
|
||||
dev_dbg(xpc_part, "heartbeat checker is exiting\n");
|
||||
|
||||
/* mark this thread as having exited */
|
||||
@@ -401,31 +458,7 @@ xpc_activating(void *__partid)
|
||||
|
||||
dev_dbg(xpc_part, "activating partition %d\n", partid);
|
||||
|
||||
/*
|
||||
* Register the remote partition's AMOs with SAL so it can handle
|
||||
* and cleanup errors within that address range should the remote
|
||||
* partition go down. We don't unregister this range because it is
|
||||
* difficult to tell when outstanding writes to the remote partition
|
||||
* are finished and thus when it is safe to unregister. This should
|
||||
* not result in wasted space in the SAL xp_addr_region table because
|
||||
* we should get the same page for remote_amos_page_pa after module
|
||||
* reloads and system reboots.
|
||||
*/
|
||||
if (sn_register_xp_addr_region(part->remote_amos_page_pa,
|
||||
PAGE_SIZE, 1) < 0) {
|
||||
dev_warn(xpc_part, "xpc_activating(%d) failed to register "
|
||||
"xp_addr region\n", partid);
|
||||
|
||||
spin_lock_irqsave(&part->act_lock, irq_flags);
|
||||
part->act_state = XPC_P_INACTIVE;
|
||||
XPC_SET_REASON(part, xpPhysAddrRegFailed, __LINE__);
|
||||
spin_unlock_irqrestore(&part->act_lock, irq_flags);
|
||||
part->remote_rp_pa = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
xpc_allow_hb(partid, xpc_vars);
|
||||
xpc_IPI_send_activated(part);
|
||||
xpc_allow_hb(partid);
|
||||
|
||||
if (xpc_setup_infrastructure(part) == xpSuccess) {
|
||||
(void)xpc_part_ref(part); /* this will always succeed */
|
||||
@@ -440,12 +473,12 @@ xpc_activating(void *__partid)
|
||||
xpc_teardown_infrastructure(part);
|
||||
}
|
||||
|
||||
xpc_disallow_hb(partid, xpc_vars);
|
||||
xpc_disallow_hb(partid);
|
||||
xpc_mark_partition_inactive(part);
|
||||
|
||||
if (part->reason == xpReactivating) {
|
||||
/* interrupting ourselves results in activating partition */
|
||||
xpc_IPI_send_reactivate(part);
|
||||
xpc_IPI_send_local_reactivate(part->reactivate_nasid);
|
||||
}
|
||||
|
||||
return 0;
|
||||
@@ -477,6 +510,32 @@ xpc_activate_partition(struct xpc_partition *part)
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Check to see if there is any channel activity to/from the specified
|
||||
* partition.
|
||||
*/
|
||||
static void
|
||||
xpc_check_for_channel_activity(struct xpc_partition *part)
|
||||
{
|
||||
u64 IPI_amo;
|
||||
unsigned long irq_flags;
|
||||
|
||||
/* this needs to be uncommented, but I'm thinking this function and the */
|
||||
/* ones that call it need to be moved into xpc_sn2.c... */
|
||||
IPI_amo = 0; /* = xpc_IPI_receive(part->local_IPI_amo_va); */
|
||||
if (IPI_amo == 0)
|
||||
return;
|
||||
|
||||
spin_lock_irqsave(&part->IPI_lock, irq_flags);
|
||||
part->local_IPI_amo |= IPI_amo;
|
||||
spin_unlock_irqrestore(&part->IPI_lock, irq_flags);
|
||||
|
||||
dev_dbg(xpc_chan, "received IPI from partid=%d, IPI_amo=0x%lx\n",
|
||||
XPC_PARTID(part), IPI_amo);
|
||||
|
||||
xpc_wakeup_channel_mgr(part);
|
||||
}
|
||||
|
||||
/*
|
||||
* Handle the receipt of a SGI_XPC_NOTIFY IRQ by seeing whether the specified
|
||||
* partition actually sent it. Since SGI_XPC_NOTIFY IRQs may be shared by more
|
||||
@@ -902,14 +961,11 @@ xpc_do_exit(enum xp_retval reason)
|
||||
} while (1);
|
||||
|
||||
DBUG_ON(xpc_partition_engaged(-1UL));
|
||||
DBUG_ON(xpc_any_hbs_allowed() != 0);
|
||||
|
||||
/* indicate to others that our reserved page is uninitialized */
|
||||
xpc_rsvd_page->stamp = ZERO_STAMP;
|
||||
|
||||
/* now it's time to eliminate our heartbeat */
|
||||
del_timer_sync(&xpc_hb_timer);
|
||||
DBUG_ON(xpc_vars->heartbeating_to_mask != 0);
|
||||
|
||||
if (reason == xpUnloading) {
|
||||
(void)unregister_die_notifier(&xpc_die_notifier);
|
||||
(void)unregister_reboot_notifier(&xpc_reboot_notifier);
|
||||
@@ -968,7 +1024,7 @@ xpc_die_disengage(void)
|
||||
/* keep xpc_hb_checker thread from doing anything (just in case) */
|
||||
xpc_exiting = 1;
|
||||
|
||||
xpc_vars->heartbeating_to_mask = 0; /* indicate we're deactivated */
|
||||
xpc_disallow_all_hbs(); /*indicate we're deactivated */
|
||||
|
||||
for (partid = 0; partid < xp_max_npartitions; partid++) {
|
||||
part = &xpc_partitions[partid];
|
||||
@@ -1054,8 +1110,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
|
||||
/* fall through */
|
||||
case DIE_MCA_MONARCH_ENTER:
|
||||
case DIE_INIT_MONARCH_ENTER:
|
||||
xpc_vars->heartbeat++;
|
||||
xpc_vars->heartbeat_offline = 1;
|
||||
xpc_offline_heartbeat();
|
||||
break;
|
||||
|
||||
case DIE_KDEBUG_LEAVE:
|
||||
@@ -1066,8 +1121,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
|
||||
/* fall through */
|
||||
case DIE_MCA_MONARCH_LEAVE:
|
||||
case DIE_INIT_MONARCH_LEAVE:
|
||||
xpc_vars->heartbeat++;
|
||||
xpc_vars->heartbeat_offline = 0;
|
||||
xpc_online_heartbeat();
|
||||
break;
|
||||
}
|
||||
|
||||
@@ -1202,9 +1256,6 @@ xpc_init(void)
|
||||
if (ret != 0)
|
||||
dev_warn(xpc_part, "can't register die notifier\n");
|
||||
|
||||
init_timer(&xpc_hb_timer);
|
||||
xpc_hb_timer.function = xpc_hb_beater;
|
||||
|
||||
/*
|
||||
* The real work-horse behind xpc. This processes incoming
|
||||
* interrupts and monitors remote heartbeats.
|
||||
@@ -1246,7 +1297,6 @@ out_4:
|
||||
/* indicate to others that our reserved page is uninitialized */
|
||||
xpc_rsvd_page->stamp = ZERO_STAMP;
|
||||
|
||||
del_timer_sync(&xpc_hb_timer);
|
||||
(void)unregister_die_notifier(&xpc_die_notifier);
|
||||
(void)unregister_reboot_notifier(&xpc_reboot_notifier);
|
||||
out_3:
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
+1175
-6
File diff suppressed because it is too large
Load Diff
@@ -19,15 +19,22 @@
|
||||
/* >>> uv_gpa() is defined in <gru/grukservices.h> */
|
||||
#define uv_gpa(_a) ((unsigned long)_a)
|
||||
|
||||
/* >>> temporarily define next three items for xpc.h */
|
||||
#define SGI_XPC_ACTIVATE 23
|
||||
#define SGI_XPC_NOTIFY 24
|
||||
#define sn_send_IPI_phys(_a, _b, _c, _d)
|
||||
|
||||
#include "xpc.h"
|
||||
|
||||
static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
|
||||
|
||||
static void *xpc_activate_mq;
|
||||
|
||||
static void
|
||||
xpc_IPI_send_local_activate_uv(struct xpc_partition *part)
|
||||
{
|
||||
/*
|
||||
* >>> make our side think that the remote parition sent an activate
|
||||
* >>> message our way. Also do what the activate IRQ handler would
|
||||
* >>> do had one really been sent.
|
||||
*/
|
||||
}
|
||||
|
||||
static enum xp_retval
|
||||
xpc_rsvd_page_init_uv(struct xpc_rsvd_page *rp)
|
||||
{
|
||||
@@ -36,6 +43,41 @@ xpc_rsvd_page_init_uv(struct xpc_rsvd_page *rp)
|
||||
return xpSuccess;
|
||||
}
|
||||
|
||||
static void
|
||||
xpc_increment_heartbeat_uv(void)
|
||||
{
|
||||
/* >>> send heartbeat msg to xpc_heartbeating_to_mask partids */
|
||||
}
|
||||
|
||||
static void
|
||||
xpc_heartbeat_init_uv(void)
|
||||
{
|
||||
bitmap_zero(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
|
||||
xpc_heartbeating_to_mask = &xpc_heartbeating_to_mask_uv[0];
|
||||
}
|
||||
|
||||
static void
|
||||
xpc_heartbeat_exit_uv(void)
|
||||
{
|
||||
/* >>> send heartbeat_offline msg to xpc_heartbeating_to_mask partids */
|
||||
}
|
||||
|
||||
static void
|
||||
xpc_initiate_partition_activation_uv(struct xpc_rsvd_page *remote_rp,
|
||||
u64 remote_rp_pa, int nasid)
|
||||
{
|
||||
short partid = remote_rp->SAL_partid;
|
||||
struct xpc_partition *part = &xpc_partitions[partid];
|
||||
|
||||
/*
|
||||
* >>> setup part structure with the bits of info we can glean from the rp
|
||||
* >>> part->remote_rp_pa = remote_rp_pa;
|
||||
* >>> part->sn.uv.activate_mq_gpa = remote_rp->sn.activate_mq_gpa;
|
||||
*/
|
||||
|
||||
xpc_IPI_send_local_activate_uv(part);
|
||||
}
|
||||
|
||||
/*
|
||||
* Setup the infrastructure necessary to support XPartition Communication
|
||||
* between the specified remote partition and the local one.
|
||||
@@ -83,6 +125,11 @@ void
|
||||
xpc_init_uv(void)
|
||||
{
|
||||
xpc_rsvd_page_init = xpc_rsvd_page_init_uv;
|
||||
xpc_increment_heartbeat = xpc_increment_heartbeat_uv;
|
||||
xpc_heartbeat_init = xpc_heartbeat_init_uv;
|
||||
xpc_heartbeat_exit = xpc_heartbeat_exit_uv;
|
||||
xpc_initiate_partition_activation =
|
||||
xpc_initiate_partition_activation_uv;
|
||||
xpc_setup_infrastructure = xpc_setup_infrastructure_uv;
|
||||
xpc_teardown_infrastructure = xpc_teardown_infrastructure_uv;
|
||||
xpc_make_first_contact = xpc_make_first_contact_uv;
|
||||
|
||||
Reference in New Issue
Block a user