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authorDean Nelson <dcn@sgi.com>2008-07-29 22:34:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-30 09:41:50 -0700
commit5b8669dfd110a62a74eea525a009342f73987ea0 (patch)
tree04572d8508f450131298b6ec072e97aa9fdba539 /drivers/misc/sgi-xp/xpc_partition.c
parent83469b5525b4a35be40b17cb41d64118d84d9f80 (diff)
sgi-xp: setup the activate GRU message queue
Setup the activate GRU message queue that is used for partition activation and channel connection on UV systems. 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>
Diffstat (limited to 'drivers/misc/sgi-xp/xpc_partition.c')
-rw-r--r--drivers/misc/sgi-xp/xpc_partition.c28
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/misc/sgi-xp/xpc_partition.c b/drivers/misc/sgi-xp/xpc_partition.c
index b5fb2164113..6722f6fe4dc 100644
--- a/drivers/misc/sgi-xp/xpc_partition.c
+++ b/drivers/misc/sgi-xp/xpc_partition.c
@@ -73,6 +73,12 @@ xpc_get_rsvd_page_pa(int nasid)
while (1) {
+ /* !!! rp_pa will need to be _gpa on UV.
+ * ??? So do we save it into the architecture specific parts
+ * ??? of the xpc_partition structure? Do we rename this
+ * ??? function or have two versions? Rename rp_pa for UV to
+ * ??? rp_gpa?
+ */
ret = xpc_get_partition_rsvd_page_pa(buf, &cookie, &rp_pa,
&len);
@@ -118,9 +124,10 @@ xpc_get_rsvd_page_pa(int nasid)
* other partitions to discover we are alive and establish initial
* communications.
*/
-struct xpc_rsvd_page *
+int
xpc_setup_rsvd_page(void)
{
+ int ret;
struct xpc_rsvd_page *rp;
unsigned long rp_pa;
unsigned long new_ts_jiffies;
@@ -132,7 +139,7 @@ xpc_setup_rsvd_page(void)
preempt_enable();
if (rp_pa == 0) {
dev_err(xpc_part, "SAL failed to locate the reserved page\n");
- return NULL;
+ return -ESRCH;
}
rp = (struct xpc_rsvd_page *)__va(rp_pa);
@@ -146,7 +153,7 @@ xpc_setup_rsvd_page(void)
dev_err(xpc_part, "the reserved page's partid of %d is outside "
"supported range (< 0 || >= %d)\n", rp->SAL_partid,
xp_max_npartitions);
- return NULL;
+ return -EINVAL;
}
rp->version = XPC_RP_VERSION;
@@ -165,8 +172,9 @@ xpc_setup_rsvd_page(void)
xpc_part_nasids = XPC_RP_PART_NASIDS(rp);
xpc_mach_nasids = XPC_RP_MACH_NASIDS(rp);
- if (xpc_rsvd_page_init(rp) != xpSuccess)
- return NULL;
+ ret = xpc_setup_rsvd_page_sn(rp);
+ if (ret != 0)
+ return ret;
/*
* Set timestamp of when reserved page was setup by XPC.
@@ -178,7 +186,15 @@ xpc_setup_rsvd_page(void)
new_ts_jiffies++;
rp->ts_jiffies = new_ts_jiffies;
- return rp;
+ xpc_rsvd_page = rp;
+ return 0;
+}
+
+void
+xpc_teardown_rsvd_page(void)
+{
+ /* a zero timestamp indicates our rsvd page is not initialized */
+ xpc_rsvd_page->ts_jiffies = 0;
}
/*