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Date: Fri, 6 Jun 2008 12:03:07 -0500
From: Dean Nelson <dcn@....com>
To: akpm@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org
Subject: [Patch 18/18] add _sn2 suffix to a few variables
Add an '_sn2' suffix to some variables found in xpc_sn2.c.
Signed-off-by: Dean Nelson <dcn@....com>
---
drivers/misc/sgi-xp/xpc_sn2.c | 124 +++++++++++++++++++-------------------
1 file changed, 65 insertions(+), 59 deletions(-)
Index: linux-2.6/drivers/misc/sgi-xp/xpc_sn2.c
===================================================================
--- linux-2.6.orig/drivers/misc/sgi-xp/xpc_sn2.c 2008-06-06 08:04:57.994324350 -0500
+++ linux-2.6/drivers/misc/sgi-xp/xpc_sn2.c 2008-06-06 08:05:03.463001668 -0500
@@ -56,15 +56,15 @@
static char *xpc_remote_copy_buffer_sn2;
static void *xpc_remote_copy_buffer_base_sn2;
-static struct xpc_vars_sn2 *xpc_vars; /* >>> Add _sn2 suffix? */
-static struct xpc_vars_part_sn2 *xpc_vars_part; /* >>> Add _sn2 suffix? */
+static struct xpc_vars_sn2 *xpc_vars_sn2;
+static struct xpc_vars_part_sn2 *xpc_vars_part_sn2;
/* 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;
+static u64 xpc_sh1_IPI_access_sn2;
+static u64 xpc_sh2_IPI_access0_sn2;
+static u64 xpc_sh2_IPI_access1_sn2;
+static u64 xpc_sh2_IPI_access2_sn2;
+static u64 xpc_sh2_IPI_access3_sn2;
/*
* Change protections to allow IPI operations.
@@ -77,13 +77,13 @@ xpc_allow_IPI_ops_sn2(void)
/* >>> The following should get moved into SAL. */
if (is_shub2()) {
- xpc_sh2_IPI_access0 =
+ xpc_sh2_IPI_access0_sn2 =
(u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS0));
- xpc_sh2_IPI_access1 =
+ xpc_sh2_IPI_access1_sn2 =
(u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS1));
- xpc_sh2_IPI_access2 =
+ xpc_sh2_IPI_access2_sn2 =
(u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS2));
- xpc_sh2_IPI_access3 =
+ xpc_sh2_IPI_access3_sn2 =
(u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS3));
for_each_online_node(node) {
@@ -98,7 +98,7 @@ xpc_allow_IPI_ops_sn2(void)
-1UL);
}
} else {
- xpc_sh1_IPI_access =
+ xpc_sh1_IPI_access_sn2 =
(u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH1_IPI_ACCESS));
for_each_online_node(node) {
@@ -123,19 +123,19 @@ xpc_disallow_IPI_ops_sn2(void)
for_each_online_node(node) {
nasid = cnodeid_to_nasid(node);
HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS0),
- xpc_sh2_IPI_access0);
+ xpc_sh2_IPI_access0_sn2);
HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS1),
- xpc_sh2_IPI_access1);
+ xpc_sh2_IPI_access1_sn2);
HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS2),
- xpc_sh2_IPI_access2);
+ xpc_sh2_IPI_access2_sn2);
HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS3),
- xpc_sh2_IPI_access3);
+ xpc_sh2_IPI_access3_sn2);
}
} 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);
+ xpc_sh1_IPI_access_sn2);
}
}
}
@@ -182,7 +182,7 @@ xpc_send_IRQ_sn2(struct amo *amo, u64 fl
static struct amo *
xpc_init_IRQ_amo_sn2(int index)
{
- struct amo *amo = xpc_vars->amos_page + index;
+ struct amo *amo = xpc_vars_sn2->amos_page + index;
(void)xpc_receive_IRQ_amo_sn2(amo); /* clear amo variable */
return amo;
@@ -225,7 +225,7 @@ xpc_send_local_activate_IRQ_sn2(int from
{
int w_index = XPC_NASID_W_INDEX(from_nasid);
int b_index = XPC_NASID_B_INDEX(from_nasid);
- struct amo *amos = (struct amo *)__va(xpc_vars->amos_page_pa +
+ struct amo *amos = (struct amo *)__va(xpc_vars_sn2->amos_page_pa +
(XPC_ACTIVATE_IRQ_AMOS_SN2 *
sizeof(struct amo)));
@@ -492,7 +492,8 @@ xpc_indicate_partition_disengaged_sn2(st
static int
xpc_partition_engaged_sn2(short partid)
{
- struct amo *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO_SN2;
+ struct amo *amo = xpc_vars_sn2->amos_page +
+ XPC_ENGAGED_PARTITIONS_AMO_SN2;
/* our partition's amo variable ANDed with partid mask */
return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) &
@@ -502,7 +503,8 @@ xpc_partition_engaged_sn2(short partid)
static int
xpc_any_partition_engaged_sn2(void)
{
- struct amo *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO_SN2;
+ struct amo *amo = xpc_vars_sn2->amos_page +
+ XPC_ENGAGED_PARTITIONS_AMO_SN2;
/* our partition's amo variable */
return FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) != 0;
@@ -511,7 +513,8 @@ xpc_any_partition_engaged_sn2(void)
static void
xpc_assume_partition_disengaged_sn2(short partid)
{
- struct amo *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO_SN2;
+ struct amo *amo = xpc_vars_sn2->amos_page +
+ XPC_ENGAGED_PARTITIONS_AMO_SN2;
/* clear bit(s) based on partid mask in our partition's amo */
FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND,
@@ -580,27 +583,27 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_p
int i;
int ret;
- xpc_vars = XPC_RP_VARS(rp);
+ xpc_vars_sn2 = XPC_RP_VARS(rp);
- rp->sn.vars_pa = __pa(xpc_vars);
+ rp->sn.vars_pa = __pa(xpc_vars_sn2);
/* vars_part array follows immediately after vars */
- xpc_vars_part = (struct xpc_vars_part_sn2 *)((u8 *)XPC_RP_VARS(rp) +
- XPC_RP_VARS_SIZE);
+ xpc_vars_part_sn2 = (struct xpc_vars_part_sn2 *)((u8 *)XPC_RP_VARS(rp) +
+ XPC_RP_VARS_SIZE);
/*
- * Before clearing xpc_vars, see if a page of amos had been previously
- * allocated. If not we'll need to allocate one and set permissions
- * so that cross-partition amos are allowed.
+ * Before clearing xpc_vars_sn2, see if a page of amos had been
+ * previously allocated. If not we'll need to allocate one and set
+ * permissions so that cross-partition amos are allowed.
*
* The allocated amo page needs MCA reporting to remain disabled after
* XPC has unloaded. To make this work, we keep a copy of the pointer
- * to this page (i.e., amos_page) in the struct xpc_vars structure,
+ * to this page (i.e., amos_page) in the struct xpc_vars_sn2 structure,
* which is pointed to by the reserved page, and re-use that saved copy
* on subsequent loads of XPC. This amo page is never freed, and its
* memory protections are never restricted.
*/
- amos_page = xpc_vars->amos_page;
+ amos_page = xpc_vars_sn2->amos_page;
if (amos_page == NULL) {
amos_page = (struct amo *)TO_AMO(uncached_alloc_page(0, 1));
if (amos_page == NULL) {
@@ -621,18 +624,18 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_p
}
}
- /* clear xpc_vars */
- memset(xpc_vars, 0, sizeof(struct xpc_vars_sn2));
+ /* clear xpc_vars_sn2 */
+ memset(xpc_vars_sn2, 0, sizeof(struct xpc_vars_sn2));
- xpc_vars->version = XPC_V_VERSION;
- xpc_vars->activate_IRQ_nasid = cpuid_to_nasid(0);
- xpc_vars->activate_IRQ_phys_cpuid = cpu_physical_id(0);
- xpc_vars->vars_part_pa = __pa(xpc_vars_part);
- xpc_vars->amos_page_pa = ia64_tpa((u64)amos_page);
- xpc_vars->amos_page = amos_page; /* save for next load of XPC */
+ xpc_vars_sn2->version = XPC_V_VERSION;
+ xpc_vars_sn2->activate_IRQ_nasid = cpuid_to_nasid(0);
+ xpc_vars_sn2->activate_IRQ_phys_cpuid = cpu_physical_id(0);
+ xpc_vars_sn2->vars_part_pa = __pa(xpc_vars_part_sn2);
+ xpc_vars_sn2->amos_page_pa = ia64_tpa((u64)amos_page);
+ xpc_vars_sn2->amos_page = amos_page; /* save for next load of XPC */
- /* clear xpc_vars_part */
- memset((u64 *)xpc_vars_part, 0, sizeof(struct xpc_vars_part_sn2) *
+ /* clear xpc_vars_part_sn2 */
+ memset((u64 *)xpc_vars_part_sn2, 0, sizeof(struct xpc_vars_part_sn2) *
xp_max_npartitions);
/* initialize the activate IRQ related amo variables */
@@ -649,30 +652,30 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_p
static void
xpc_increment_heartbeat_sn2(void)
{
- xpc_vars->heartbeat++;
+ xpc_vars_sn2->heartbeat++;
}
static void
xpc_offline_heartbeat_sn2(void)
{
xpc_increment_heartbeat_sn2();
- xpc_vars->heartbeat_offline = 1;
+ xpc_vars_sn2->heartbeat_offline = 1;
}
static void
xpc_online_heartbeat_sn2(void)
{
xpc_increment_heartbeat_sn2();
- xpc_vars->heartbeat_offline = 0;
+ xpc_vars_sn2->heartbeat_offline = 0;
}
static void
xpc_heartbeat_init_sn2(void)
{
- DBUG_ON(xpc_vars == NULL);
+ DBUG_ON(xpc_vars_sn2 == NULL);
- bitmap_zero(xpc_vars->heartbeating_to_mask, XP_MAX_NPARTITIONS_SN2);
- xpc_heartbeating_to_mask = &xpc_vars->heartbeating_to_mask[0];
+ bitmap_zero(xpc_vars_sn2->heartbeating_to_mask, XP_MAX_NPARTITIONS_SN2);
+ xpc_heartbeating_to_mask = &xpc_vars_sn2->heartbeating_to_mask[0];
xpc_online_heartbeat_sn2();
}
@@ -845,7 +848,8 @@ xpc_cancel_partition_deactivation_reques
static int
xpc_partition_deactivation_requested_sn2(short partid)
{
- struct amo *amo = xpc_vars->amos_page + XPC_DEACTIVATE_REQUEST_AMO_SN2;
+ struct amo *amo = xpc_vars_sn2->amos_page +
+ XPC_DEACTIVATE_REQUEST_AMO_SN2;
/* our partition's amo variable ANDed with partid mask */
return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) &
@@ -1033,7 +1037,7 @@ xpc_identify_activate_IRQ_sender_sn2(voi
int n_IRQs_detected = 0;
struct amo *act_amos;
- act_amos = xpc_vars->amos_page + XPC_ACTIVATE_IRQ_AMOS_SN2;
+ act_amos = xpc_vars_sn2->amos_page + XPC_ACTIVATE_IRQ_AMOS_SN2;
/* scan through act amo variable looking for non-zero entries */
for (word = 0; word < xpc_nasid_mask_words; word++) {
@@ -1261,15 +1265,17 @@ xpc_setup_infrastructure_sn2(struct xpc_
* The setting of the magic # indicates that these per partition
* specific variables are ready to be used.
*/
- xpc_vars_part[partid].GPs_pa = __pa(part_sn2->local_GPs);
- xpc_vars_part[partid].openclose_args_pa =
+ xpc_vars_part_sn2[partid].GPs_pa = __pa(part_sn2->local_GPs);
+ xpc_vars_part_sn2[partid].openclose_args_pa =
__pa(part->local_openclose_args);
- xpc_vars_part[partid].chctl_amo_pa = __pa(part_sn2->local_chctl_amo_va);
+ xpc_vars_part_sn2[partid].chctl_amo_pa =
+ __pa(part_sn2->local_chctl_amo_va);
cpuid = raw_smp_processor_id(); /* any CPU in this partition will do */
- xpc_vars_part[partid].notify_IRQ_nasid = cpuid_to_nasid(cpuid);
- xpc_vars_part[partid].notify_IRQ_phys_cpuid = cpu_physical_id(cpuid);
- xpc_vars_part[partid].nchannels = part->nchannels;
- xpc_vars_part[partid].magic = XPC_VP_MAGIC1;
+ xpc_vars_part_sn2[partid].notify_IRQ_nasid = cpuid_to_nasid(cpuid);
+ xpc_vars_part_sn2[partid].notify_IRQ_phys_cpuid =
+ cpu_physical_id(cpuid);
+ xpc_vars_part_sn2[partid].nchannels = part->nchannels;
+ xpc_vars_part_sn2[partid].magic = XPC_VP_MAGIC1;
return xpSuccess;
@@ -1316,7 +1322,7 @@ xpc_teardown_infrastructure_sn2(struct x
DBUG_ON(part->setup_state != XPC_P_SETUP);
part->setup_state = XPC_P_WTEARDOWN;
- xpc_vars_part[partid].magic = 0;
+ xpc_vars_part_sn2[partid].magic = 0;
free_irq(SGI_XPC_NOTIFY, (void *)(u64)partid);
@@ -1432,7 +1438,7 @@ xpc_pull_remote_vars_part_sn2(struct xpc
return xpRetry;
}
- if (xpc_vars_part[partid].magic == XPC_VP_MAGIC1) {
+ if (xpc_vars_part_sn2[partid].magic == XPC_VP_MAGIC1) {
/* validate the variables */
@@ -1462,7 +1468,7 @@ xpc_pull_remote_vars_part_sn2(struct xpc
/* let the other side know that we've pulled their variables */
- xpc_vars_part[partid].magic = XPC_VP_MAGIC2;
+ xpc_vars_part_sn2[partid].magic = XPC_VP_MAGIC2;
}
if (pulled_entry->magic == XPC_VP_MAGIC1)
--
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