/*
* 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) 2008 Silicon Graphics, Inc. All Rights Reserved.
*/
/*
* Cross Partition Communication (XPC) uv-based functions.
*
* Architecture specific implementation of common functions.
*
*/
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <asm/uv/uv_hub.h>
#include "../sgi-gru/gru.h"
#include "../sgi-gru/grukservices.h"
#include "xpc.h"
static atomic64_t xpc_heartbeat_uv;
static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
#define XPC_ACTIVATE_MSG_SIZE_UV (1 * GRU_CACHE_LINE_BYTES)
#define XPC_NOTIFY_MSG_SIZE_UV (2 * GRU_CACHE_LINE_BYTES)
#define XPC_ACTIVATE_MQ_SIZE_UV (4 * XP_MAX_NPARTITIONS_UV * \
XPC_ACTIVATE_MSG_SIZE_UV)
#define XPC_NOTIFY_MQ_SIZE_UV (4 * XP_MAX_NPARTITIONS_UV * \
XPC_NOTIFY_MSG_SIZE_UV)
static void *xpc_activate_mq_uv;
static void *xpc_notify_mq_uv;
static int
xpc_setup_partitions_sn_uv(void)
{
short partid;
struct xpc_partition_uv *part_uv;
for (partid = 0; partid < XP_MAX_NPARTITIONS_UV; partid++) {
part_uv = &xpc_partitions[partid].sn.uv;
spin_lock_init(&part_uv->flags_lock);
part_uv->remote_act_state = XPC_P_AS_INACTIVE;
}
return 0;
}
static void *
xpc_create_gru_mq_uv(unsigned int mq_size, int cpuid, unsigned int irq,
irq_handler_t irq_handler)
{
int ret;
int nid;
int mq_order;
struct page *page;
