sgi-xp: isolate activate IRQ's hardware specific components

Isolate architecture specific code related to XPC's activate IRQ.

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 121 deletions

diff --git a/drivers/misc/sgi-xp/xpc_partition.c b/drivers/misc/sgi-xp/xpc_partition.c
index 90ec5ca8c9ab..bf9b1193bd2a 100644
--- a/drivers/misc/sgi-xp/xpc_partition.c
+++ b/drivers/misc/sgi-xp/xpc_partition.c
@@ -29,16 +29,6 @@
 /* XPC is exiting flag */
 int xpc_exiting;
 
-/* SH_IPI_ACCESS shub register value on startup */
-static u64 xpc_sh1_IPI_access;
-static u64 xpc_sh2_IPI_access0;
-static u64 xpc_sh2_IPI_access1;
-static u64 xpc_sh2_IPI_access2;
-static u64 xpc_sh2_IPI_access3;
-
-/* original protection values for each node */
-u64 xpc_prot_vec[MAX_NUMNODES];
-
 /* this partition's reserved page pointers */
 struct xpc_rsvd_page *xpc_rsvd_page;
 static u64 *xpc_part_nasids;
@@ -211,117 +201,6 @@ xpc_setup_rsvd_page(void)
 }
 
 /*
- * Change protections to allow IPI operations (and AMO operations on
- * Shub 1.1 systems).
- */
-void
-xpc_allow_IPI_ops(void)
-{
-        int node;
-        int nasid;
-
-        /* >>> Change SH_IPI_ACCESS code to use SAL call once it is available */
-
-        if (is_shub2()) {
-                xpc_sh2_IPI_access0 =
-                    (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS0));
-                xpc_sh2_IPI_access1 =
-                    (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS1));
-                xpc_sh2_IPI_access2 =
-                    (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS2));
-                xpc_sh2_IPI_access3 =
-                    (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS3));
-
-                for_each_online_node(node) {
-                        nasid = cnodeid_to_nasid(node);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS0),
-                              -1UL);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS1),
-                              -1UL);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS2),
-                              -1UL);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS3),
-                              -1UL);
-                }
-
-        } else {
-                xpc_sh1_IPI_access =
-                    (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH1_IPI_ACCESS));
-
-                for_each_online_node(node) {
-                        nasid = cnodeid_to_nasid(node);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH1_IPI_ACCESS),
-                              -1UL);
-
-                        /*
-                         * Since the BIST collides with memory operations on
-                         * SHUB 1.1 sn_change_memprotect() cannot be used.
-                         */
-                        if (enable_shub_wars_1_1()) {
-                                /* open up everything */
-                                xpc_prot_vec[node] = (u64)HUB_L((u64 *)
-                                                                GLOBAL_MMR_ADDR
-                                                                (nasid,
-                                                  SH1_MD_DQLP_MMR_DIR_PRIVEC0));
-                                HUB_S((u64 *)
-                                      GLOBAL_MMR_ADDR(nasid,
-                                                   SH1_MD_DQLP_MMR_DIR_PRIVEC0),
-                                      -1UL);
-                                HUB_S((u64 *)
-                                      GLOBAL_MMR_ADDR(nasid,
-                                                   SH1_MD_DQRP_MMR_DIR_PRIVEC0),
-                                      -1UL);
-                        }
-                }
-        }
-}
-
-/*
- * Restrict protections to disallow IPI operations (and AMO operations on
- * Shub 1.1 systems).
- */
-void
-xpc_restrict_IPI_ops(void)
-{
-        int node;
-        int nasid;
-
-        /* >>> Change SH_IPI_ACCESS code to use SAL call once it is available */
-
-        if (is_shub2()) {
-
-                for_each_online_node(node) {
-                        nasid = cnodeid_to_nasid(node);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS0),
-                              xpc_sh2_IPI_access0);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS1),
-                              xpc_sh2_IPI_access1);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS2),
-                              xpc_sh2_IPI_access2);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS3),
-                              xpc_sh2_IPI_access3);
-                }
-
-        } else {
-
-                for_each_online_node(node) {
-                        nasid = cnodeid_to_nasid(node);
-                        HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH1_IPI_ACCESS),
-                              xpc_sh1_IPI_access);
-
-                        if (enable_shub_wars_1_1()) {
-                                HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid,
-                                                   SH1_MD_DQLP_MMR_DIR_PRIVEC0),
-                                      xpc_prot_vec[node]);
-                                HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid,
-                                                   SH1_MD_DQRP_MMR_DIR_PRIVEC0),
-                                      xpc_prot_vec[node]);
-                        }
-                }
-        }
-}
-
-/*
  * Get a copy of a portion of the remote partition's rsvd page.
  *
  * remote_rp points to a buffer that is cacheline aligned for BTE copies and