2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
10 * Cross Partition Communication (XPC) uv-based functions.
12 * Architecture specific implementation of common functions.
16 #include <linux/kernel.h>
18 /* >>> #include <gru/grukservices.h> */
19 /* >>> uv_gpa() is defined in <gru/grukservices.h> */
20 #define uv_gpa(_a) ((unsigned long)_a)
24 static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv
, XP_MAX_NPARTITIONS_UV
);
26 static void *xpc_activate_mq
;
29 xpc_send_local_activate_IRQ_uv(struct xpc_partition
*part
)
32 * >>> make our side think that the remote parition sent an activate
33 * >>> message our way. Also do what the activate IRQ handler would
34 * >>> do had one really been sent.
39 xpc_rsvd_page_init_uv(struct xpc_rsvd_page
*rp
)
41 /* >>> need to have established xpc_activate_mq earlier */
42 rp
->sn
.activate_mq_gpa
= uv_gpa(xpc_activate_mq
);
47 xpc_increment_heartbeat_uv(void)
49 /* >>> send heartbeat msg to xpc_heartbeating_to_mask partids */
53 xpc_heartbeat_init_uv(void)
55 bitmap_zero(xpc_heartbeating_to_mask_uv
, XP_MAX_NPARTITIONS_UV
);
56 xpc_heartbeating_to_mask
= &xpc_heartbeating_to_mask_uv
[0];
60 xpc_heartbeat_exit_uv(void)
62 /* >>> send heartbeat_offline msg to xpc_heartbeating_to_mask partids */
66 xpc_request_partition_activation_uv(struct xpc_rsvd_page
*remote_rp
,
67 u64 remote_rp_pa
, int nasid
)
69 short partid
= remote_rp
->SAL_partid
;
70 struct xpc_partition
*part
= &xpc_partitions
[partid
];
73 * >>> setup part structure with the bits of info we can glean from the rp
74 * >>> part->remote_rp_pa = remote_rp_pa;
75 * >>> part->sn.uv.activate_mq_gpa = remote_rp->sn.activate_mq_gpa;
78 xpc_send_local_activate_IRQ_uv(part
);
82 xpc_request_partition_reactivation_uv(struct xpc_partition
*part
)
84 xpc_send_local_activate_IRQ_uv(part
);
88 * Setup the infrastructure necessary to support XPartition Communication
89 * between the specified remote partition and the local one.
92 xpc_setup_infrastructure_uv(struct xpc_partition
*part
)
94 /* >>> this function needs fleshing out */
99 * Teardown the infrastructure necessary to support XPartition Communication
100 * between the specified remote partition and the local one.
103 xpc_teardown_infrastructure_uv(struct xpc_partition
*part
)
105 /* >>> this function needs fleshing out */
109 static enum xp_retval
110 xpc_make_first_contact_uv(struct xpc_partition
*part
)
112 /* >>> this function needs fleshing out */
113 return xpUnsupported
;
117 xpc_get_chctl_all_flags_uv(struct xpc_partition
*part
)
119 /* >>> this function needs fleshing out */
123 static struct xpc_msg
*
124 xpc_get_deliverable_msg_uv(struct xpc_channel
*ch
)
126 /* >>> this function needs fleshing out */
133 xpc_rsvd_page_init
= xpc_rsvd_page_init_uv
;
134 xpc_increment_heartbeat
= xpc_increment_heartbeat_uv
;
135 xpc_heartbeat_init
= xpc_heartbeat_init_uv
;
136 xpc_heartbeat_exit
= xpc_heartbeat_exit_uv
;
137 xpc_request_partition_activation
= xpc_request_partition_activation_uv
;
138 xpc_request_partition_reactivation
=
139 xpc_request_partition_reactivation_uv
;
140 xpc_setup_infrastructure
= xpc_setup_infrastructure_uv
;
141 xpc_teardown_infrastructure
= xpc_teardown_infrastructure_uv
;
142 xpc_make_first_contact
= xpc_make_first_contact_uv
;
143 xpc_get_chctl_all_flags
= xpc_get_chctl_all_flags_uv
;
144 xpc_get_deliverable_msg
= xpc_get_deliverable_msg_uv
;