diff options
Diffstat (limited to 'drivers/misc/sgi-xp/xpc_partition.c')
| -rw-r--r-- | drivers/misc/sgi-xp/xpc_partition.c | 28 |
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; } /* |