| /* |
| * 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) |
| { |
| } |