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94bd2708 DN |
1 | /* |
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 | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. | |
7 | */ | |
8 | ||
9 | /* | |
10 | * Cross Partition Communication (XPC) uv-based functions. | |
11 | * | |
12 | * Architecture specific implementation of common functions. | |
13 | * | |
14 | */ | |
15 | ||
16 | #include <linux/kernel.h> | |
17 | ||
ea57f80c DN |
18 | /* !!! #include <gru/grukservices.h> */ |
19 | /* !!! uv_gpa() is defined in <gru/grukservices.h> */ | |
94bd2708 DN |
20 | #define uv_gpa(_a) ((unsigned long)_a) |
21 | ||
94bd2708 DN |
22 | #include "xpc.h" |
23 | ||
33ba3c77 DN |
24 | static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV); |
25 | ||
94bd2708 DN |
26 | static void *xpc_activate_mq; |
27 | ||
33ba3c77 | 28 | static void |
7fb5e59d | 29 | xpc_send_local_activate_IRQ_uv(struct xpc_partition *part) |
33ba3c77 DN |
30 | { |
31 | /* | |
ea57f80c DN |
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. | |
33ba3c77 DN |
35 | */ |
36 | } | |
37 | ||
94bd2708 DN |
38 | static enum xp_retval |
39 | xpc_rsvd_page_init_uv(struct xpc_rsvd_page *rp) | |
40 | { | |
ea57f80c | 41 | /* !!! need to have established xpc_activate_mq earlier */ |
94bd2708 DN |
42 | rp->sn.activate_mq_gpa = uv_gpa(xpc_activate_mq); |
43 | return xpSuccess; | |
44 | } | |
45 | ||
33ba3c77 DN |
46 | static void |
47 | xpc_increment_heartbeat_uv(void) | |
48 | { | |
ea57f80c | 49 | /* !!! send heartbeat msg to xpc_heartbeating_to_mask partids */ |
33ba3c77 DN |
50 | } |
51 | ||
52 | static void | |
53 | xpc_heartbeat_init_uv(void) | |
54 | { | |
55 | bitmap_zero(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV); | |
56 | xpc_heartbeating_to_mask = &xpc_heartbeating_to_mask_uv[0]; | |
57 | } | |
58 | ||
59 | static void | |
60 | xpc_heartbeat_exit_uv(void) | |
61 | { | |
ea57f80c | 62 | /* !!! send heartbeat_offline msg to xpc_heartbeating_to_mask partids */ |
33ba3c77 DN |
63 | } |
64 | ||
65 | static void | |
a47d5dac DN |
66 | xpc_request_partition_activation_uv(struct xpc_rsvd_page *remote_rp, |
67 | u64 remote_rp_pa, int nasid) | |
33ba3c77 DN |
68 | { |
69 | short partid = remote_rp->SAL_partid; | |
70 | struct xpc_partition *part = &xpc_partitions[partid]; | |
71 | ||
72 | /* | |
ea57f80c DN |
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; | |
33ba3c77 DN |
76 | */ |
77 | ||
7fb5e59d | 78 | xpc_send_local_activate_IRQ_uv(part); |
33ba3c77 DN |
79 | } |
80 | ||
a47d5dac DN |
81 | static void |
82 | xpc_request_partition_reactivation_uv(struct xpc_partition *part) | |
83 | { | |
7fb5e59d | 84 | xpc_send_local_activate_IRQ_uv(part); |
a47d5dac DN |
85 | } |
86 | ||
e17d416b DN |
87 | /* |
88 | * Setup the infrastructure necessary to support XPartition Communication | |
89 | * between the specified remote partition and the local one. | |
90 | */ | |
91 | static enum xp_retval | |
92 | xpc_setup_infrastructure_uv(struct xpc_partition *part) | |
93 | { | |
ea57f80c | 94 | /* !!! this function needs fleshing out */ |
e17d416b DN |
95 | return xpUnsupported; |
96 | } | |
97 | ||
98 | /* | |
99 | * Teardown the infrastructure necessary to support XPartition Communication | |
100 | * between the specified remote partition and the local one. | |
101 | */ | |
102 | static void | |
103 | xpc_teardown_infrastructure_uv(struct xpc_partition *part) | |
104 | { | |
ea57f80c | 105 | /* !!! this function needs fleshing out */ |
e17d416b DN |
106 | return; |
107 | } | |
108 | ||
109 | static enum xp_retval | |
110 | xpc_make_first_contact_uv(struct xpc_partition *part) | |
111 | { | |
ea57f80c | 112 | /* !!! this function needs fleshing out */ |
e17d416b DN |
113 | return xpUnsupported; |
114 | } | |
115 | ||
116 | static u64 | |
7fb5e59d | 117 | xpc_get_chctl_all_flags_uv(struct xpc_partition *part) |
e17d416b | 118 | { |
ea57f80c | 119 | /* !!! this function needs fleshing out */ |
e17d416b DN |
120 | return 0UL; |
121 | } | |
122 | ||
123 | static struct xpc_msg * | |
124 | xpc_get_deliverable_msg_uv(struct xpc_channel *ch) | |
125 | { | |
ea57f80c | 126 | /* !!! this function needs fleshing out */ |
e17d416b DN |
127 | return NULL; |
128 | } | |
129 | ||
94bd2708 DN |
130 | void |
131 | xpc_init_uv(void) | |
132 | { | |
133 | xpc_rsvd_page_init = xpc_rsvd_page_init_uv; | |
33ba3c77 DN |
134 | xpc_increment_heartbeat = xpc_increment_heartbeat_uv; |
135 | xpc_heartbeat_init = xpc_heartbeat_init_uv; | |
136 | xpc_heartbeat_exit = xpc_heartbeat_exit_uv; | |
a47d5dac DN |
137 | xpc_request_partition_activation = xpc_request_partition_activation_uv; |
138 | xpc_request_partition_reactivation = | |
139 | xpc_request_partition_reactivation_uv; | |
e17d416b DN |
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; | |
7fb5e59d | 143 | xpc_get_chctl_all_flags = xpc_get_chctl_all_flags_uv; |
e17d416b | 144 | xpc_get_deliverable_msg = xpc_get_deliverable_msg_uv; |
94bd2708 DN |
145 | } |
146 | ||
147 | void | |
148 | xpc_exit_uv(void) | |
149 | { | |
150 | } |