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/*
* 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 <asm/uv/uv_hub.h>
#include "../sgi-gru/grukservices.h"
#include "xpc.h"
static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
static void *xpc_activate_mq;
static void
xpc_send_local_activate_IRQ_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)
{
/* !!! need to have established xpc_activate_mq earlier */
rp->sn.activate_mq_gpa = uv_gpa(xpc_activate_mq);
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_request_partition_activation_uv(struct xpc_rsvd_page *remote_rp,
unsigned long 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_send_local_activate_IRQ_uv(part);
}
static void
xpc_request_partition_reactivation_uv(struct xpc_partition *part)
{
xpc_send_local_activate_IRQ_uv(part);
}
/*
* Setup the infrastructure necessary to support XPartition Communication
* between the specified remote partition and the local one.
*/
static enum xp_retval
xpc_setup_infrastructure_uv(struct xpc_partition *part)
{
/* !!! this function needs fleshing out */
return xpUnsupported;
}
/*
* Teardown the infrastructure necessary to support XPartition Communication
* between the specified remote partition and the local one.
*/
static void
xpc_teardown_infrastructure_uv(struct xpc_partition *part)
{
/* !!! this function needs fleshing out */
return;
}
static enum xp_retval
xpc_make_first_contact_uv(struct xpc_partition *part)
{
/* !!! this function needs fleshing out */
return xpUnsupported;
}
static u64
xpc_get_chctl_all_flags_uv(struct xpc_partition *part)
{
/* !!! this function needs fleshing out */
return 0UL;
}
static struct xpc_msg *
xpc_get_deliverable_msg_uv(struct xpc_channel *ch)
{
/* !!! this function needs fleshing out */
return NULL;
}
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_request_partition_activation = xpc_request_partition_activation_uv;
xpc_request_partition_reactivation =
xpc_request_partition_reactivation_uv;
xpc_setup_infrastructure = xpc_setup_infrastructure_uv;
xpc_teardown_infrastructure = xpc_teardown_infrastructure_uv;
xpc_make_first_contact = xpc_make_first_contact_uv;
xpc_get_chctl_all_flags = xpc_get_chctl_all_flags_uv;
xpc_get_deliverable_msg = xpc_get_deliverable_msg_uv;
}
void
xpc_exit_uv(void)
{
}
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