1 files changed, 0 insertions, 115 deletions
diff --git a/arch/tile/kernel/messaging.c b/arch/tile/kernel/messaging.c
deleted file mode 100644
index 7475af3aacec..000000000000
--- a/arch/tile/kernel/messaging.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU General Public License
- *   as published by the Free Software Foundation, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
- */
-
-#include <linux/percpu.h>
-#include <linux/smp.h>
-#include <linux/hardirq.h>
-#include <linux/ptrace.h>
-#include <asm/hv_driver.h>
-#include <asm/irq_regs.h>
-#include <asm/traps.h>
-#include <hv/hypervisor.h>
-#include <arch/interrupts.h>
-
-/* All messages are stored here */
-static DEFINE_PER_CPU(HV_MsgState, msg_state);
-
-void init_messaging(void)
-{
-	/* Allocate storage for messages in kernel space */
-	HV_MsgState *state = this_cpu_ptr(&msg_state);
-	int rc = hv_register_message_state(state);
-	if (rc != HV_OK)
-		panic("hv_register_message_state: error %d", rc);
-
-	/* Make sure downcall interrupts will be enabled. */
-	arch_local_irq_unmask(INT_INTCTRL_K);
-}
-
-void hv_message_intr(struct pt_regs *regs, int intnum)
-{
-	/*
-	 * We enter with interrupts disabled and leave them disabled,
-	 * to match expectations of called functions (e.g.
-	 * do_ccupdate_local() in mm/slab.c).  This is also consistent
-	 * with normal call entry for device interrupts.
-	 */
-
-	int message[HV_MAX_MESSAGE_SIZE/sizeof(int)];
-	HV_RcvMsgInfo rmi;
-	int nmsgs = 0;
-
-	/* Track time spent here in an interrupt context */
-	struct pt_regs *old_regs = set_irq_regs(regs);
-	irq_enter();
-
-#ifdef CONFIG_DEBUG_STACKOVERFLOW
-	/* Debugging check for stack overflow: less than 1/8th stack free? */
-	{
-		long sp = stack_pointer - (long) current_thread_info();
-		if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) {
-			pr_emerg("%s: stack overflow: %ld\n",
-				 __func__, sp - sizeof(struct thread_info));
-			dump_stack();
-		}
-	}
-#endif
-
-	while (1) {
-		HV_MsgState *state = this_cpu_ptr(&msg_state);
-		rmi = hv_receive_message(*state, (HV_VirtAddr) message,
-					 sizeof(message));
-		if (rmi.msglen == 0)
-			break;
-
-		if (rmi.msglen < 0)
-			panic("hv_receive_message failed: %d", rmi.msglen);
-
-		++nmsgs;
-
-		if (rmi.source == HV_MSG_TILE) {
-			int tag;
-
-			/* we just send tags for now */
-			BUG_ON(rmi.msglen != sizeof(int));
-
-			tag = message[0];
-#ifdef CONFIG_SMP
-			evaluate_message(message[0]);
-#else
-			panic("Received IPI message %d in UP mode", tag);
-#endif
-		} else if (rmi.source == HV_MSG_INTR) {
-			HV_IntrMsg *him = (HV_IntrMsg *)message;
-			struct hv_driver_cb *cb =
-				(struct hv_driver_cb *)him->intarg;
-			cb->callback(cb, him->intdata);
-			__this_cpu_inc(irq_stat.irq_hv_msg_count);
-		}
-	}
-
-	/*
-	 * We shouldn't have gotten a message downcall with no
-	 * messages available.
-	 */
-	if (nmsgs == 0)
-		panic("Message downcall invoked with no messages!");
-
-	/*
-	 * Track time spent against the current process again and
-	 * process any softirqs if they are waiting.
-	 */
-	irq_exit();
-	set_irq_regs(old_regs);
-}