a812dcc3a2
Add UV support to xpc_remote_memcpy(), which involves interfacing to the GRU driver. Signed-off-by: Dean Nelson <dcn@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
148 lines
3.6 KiB
C
148 lines
3.6 KiB
C
/*
|
|
* 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)
|
|
{
|
|
}
|