Merge upstream (approx. 2.6.12-git8) into 'janitor' branch of netdev-2.6.

5 files changed, 32 insertions, 31 deletions

diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 4fb44984afe..44bfc7f318c 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -222,7 +222,7 @@ void __init early_sn_setup(void)
 
 extern int platform_intr_list[];
 extern nasid_t master_nasid;
-static int shub_1_1_found __initdata;
+static int __initdata shub_1_1_found = 0;
 
 /*
  * sn_check_for_wars
@@ -251,7 +251,7 @@ static void __init sn_check_for_wars(void)
 	} else {
 		for_each_online_node(cnode) {
 			if (is_shub_1_1(cnodeid_to_nasid(cnode)))
-				sn_hub_info->shub_1_1_found = 1;
+				shub_1_1_found = 1;
 		}
 	}
 }
@@ -271,6 +271,8 @@ void __init sn_setup(char **cmdline_p)
 	int major = sn_sal_rev_major(), minor = sn_sal_rev_minor();
 	extern void sn_cpu_init(void);
 
+	ia64_sn_plat_set_error_handling_features();
+
 	/*
 	 * If the generic code has enabled vga console support - lets
 	 * get rid of it again. This is a kludge for the fact that ACPI
diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c
index ab9b5f35c2a..a087b274847 100644
--- a/arch/ia64/sn/kernel/tiocx.c
+++ b/arch/ia64/sn/kernel/tiocx.c
@@ -432,7 +432,7 @@ static int tiocx_reload(struct cx_dev *cx_dev)
 	return cx_device_reload(cx_dev);
 }
 
-static ssize_t show_cxdev_control(struct device *dev, char *buf)
+static ssize_t show_cxdev_control(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct cx_dev *cx_dev = to_cx_dev(dev);
 
@@ -442,7 +442,7 @@ static ssize_t show_cxdev_control(struct device *dev, char *buf)
 		       tiocx_btchar_get(cx_dev->cx_id.nasid));
 }
 
-static ssize_t store_cxdev_control(struct device *dev, const char *buf,
+static ssize_t store_cxdev_control(struct device *dev, struct device_attribute *attr, const char *buf,
 				   size_t count)
 {
 	int n;
@@ -518,25 +518,22 @@ static int __init tiocx_init(void)
 	return 0;
 }
 
-static void __exit tiocx_exit(void)
+static int cx_remove_device(struct device * dev, void * data)
 {
-	struct device *dev;
-	struct device *tdev;
+	struct cx_dev *cx_dev = to_cx_dev(dev);
+	device_remove_file(dev, &dev_attr_cxdev_control);
+	cx_device_unregister(cx_dev);
+	return 0;
+}
 
+static void __exit tiocx_exit(void)
+{
 	DBG("tiocx_exit\n");
 
 	/*
 	 * Unregister devices.
 	 */
-	list_for_each_entry_safe(dev, tdev, &tiocx_bus_type.devices.list,
-				 bus_list) {
-		if (dev) {
-			struct cx_dev *cx_dev = to_cx_dev(dev);
-			device_remove_file(dev, &dev_attr_cxdev_control);
-			cx_device_unregister(cx_dev);
-		}
-	}
-
+	bus_for_each_dev(&tiocx_bus_type, NULL, NULL, cx_remove_device);
 	bus_unregister(&tiocx_bus_type);
 }
 
diff --git a/arch/ia64/sn/kernel/xpc.h b/arch/ia64/sn/kernel/xpc.h
index 1a0aed8490d..d0ee635daf2 100644
--- a/arch/ia64/sn/kernel/xpc.h
+++ b/arch/ia64/sn/kernel/xpc.h
@@ -87,7 +87,7 @@ struct xpc_rsvd_page {
 	u8 partid;		/* partition ID from SAL */
 	u8 version;
 	u8 pad[6];		/* pad to u64 align */
-	u64 vars_pa;
+	volatile u64 vars_pa;
 	u64 part_nasids[XP_NASID_MASK_WORDS] ____cacheline_aligned;
 	u64 mach_nasids[XP_NASID_MASK_WORDS] ____cacheline_aligned;
 };
@@ -138,7 +138,7 @@ struct xpc_vars {
  * occupies half a cacheline.
  */
 struct xpc_vars_part {
-	u64 magic;
+	volatile u64 magic;
 
 	u64 openclose_args_pa;	/* physical address of open and close args */
 	u64 GPs_pa;		/* physical address of Get/Put values */
@@ -185,8 +185,8 @@ struct xpc_vars_part {
  * Define a Get/Put value pair (pointers) used with a message queue.
  */
 struct xpc_gp {
-	s64 get;	/* Get value */
-	s64 put;	/* Put value */
+	volatile s64 get;	/* Get value */
+	volatile s64 put;	/* Put value */
 };
 
 #define XPC_GP_SIZE \
@@ -231,7 +231,7 @@ struct xpc_openclose_args {
  */
 struct xpc_notify {
 	struct semaphore sema;		/* notify semaphore */
-	u8 type;			/* type of notification */
+	volatile u8 type;			/* type of notification */
 
 	/* the following two fields are only used if type == XPC_N_CALL */
 	xpc_notify_func func;		/* user's notify function */
@@ -439,7 +439,7 @@ struct xpc_partition {
 
 	/* XPC infrastructure referencing and teardown control */
 
-	u8 setup_state;			/* infrastructure setup state */
+	volatile u8 setup_state;			/* infrastructure setup state */
 	wait_queue_head_t teardown_wq;	/* kthread waiting to teardown infra */
 	atomic_t references;		/* #of references to infrastructure */
 
diff --git a/arch/ia64/sn/kernel/xpc_channel.c b/arch/ia64/sn/kernel/xpc_channel.c
index 0bf6fbcc46d..6d02dac8056 100644
--- a/arch/ia64/sn/kernel/xpc_channel.c
+++ b/arch/ia64/sn/kernel/xpc_channel.c
@@ -209,7 +209,7 @@ xpc_setup_infrastructure(struct xpc_partition *part)
 	 * With the setting of the partition setup_state to XPC_P_SETUP, we're
 	 * declaring that this partition is ready to go.
 	 */
-	(volatile u8) part->setup_state = XPC_P_SETUP;
+	part->setup_state = XPC_P_SETUP;
 
 
 	/*
@@ -227,7 +227,7 @@ xpc_setup_infrastructure(struct xpc_partition *part)
 	xpc_vars_part[partid].IPI_phys_cpuid =
 					cpu_physical_id(smp_processor_id());
 	xpc_vars_part[partid].nchannels = part->nchannels;
-	(volatile u64) xpc_vars_part[partid].magic = XPC_VP_MAGIC1;
+	xpc_vars_part[partid].magic = XPC_VP_MAGIC1;
 
 	return xpcSuccess;
 }
@@ -355,7 +355,7 @@ xpc_pull_remote_vars_part(struct xpc_partition *part)
 
 		/* let the other side know that we've pulled their variables */
 
-		(volatile u64) xpc_vars_part[partid].magic = XPC_VP_MAGIC2;
+		xpc_vars_part[partid].magic = XPC_VP_MAGIC2;
 	}
 
 	if (pulled_entry->magic == XPC_VP_MAGIC1) {
@@ -1183,7 +1183,7 @@ xpc_process_msg_IPI(struct xpc_partition *part, int ch_number)
 		 */
 		xpc_clear_local_msgqueue_flags(ch);
 
-		(volatile s64) ch->w_remote_GP.get = ch->remote_GP.get;
+		ch->w_remote_GP.get = ch->remote_GP.get;
 
 		dev_dbg(xpc_chan, "w_remote_GP.get changed to %ld, partid=%d, "
 			"channel=%d\n", ch->w_remote_GP.get, ch->partid,
@@ -1211,7 +1211,7 @@ xpc_process_msg_IPI(struct xpc_partition *part, int ch_number)
 		 */
 		xpc_clear_remote_msgqueue_flags(ch);
 
-		(volatile s64) ch->w_remote_GP.put = ch->remote_GP.put;
+		ch->w_remote_GP.put = ch->remote_GP.put;
 
 		dev_dbg(xpc_chan, "w_remote_GP.put changed to %ld, partid=%d, "
 			"channel=%d\n", ch->w_remote_GP.put, ch->partid,
@@ -1875,7 +1875,7 @@ xpc_send_msg(struct xpc_channel *ch, struct xpc_msg *msg, u8 notify_type,
 		notify = &ch->notify_queue[msg_number % ch->local_nentries];
 		notify->func = func;
 		notify->key = key;
-		(volatile u8) notify->type = notify_type;
+		notify->type = notify_type;
 
 		// >>> is a mb() needed here?
 
diff --git a/arch/ia64/sn/kernel/xpc_partition.c b/arch/ia64/sn/kernel/xpc_partition.c
index 2c3c4a8af55..578265ea9e6 100644
--- a/arch/ia64/sn/kernel/xpc_partition.c
+++ b/arch/ia64/sn/kernel/xpc_partition.c
@@ -22,6 +22,7 @@
 #include <linux/cache.h>
 #include <linux/mmzone.h>
 #include <linux/nodemask.h>
+#include <asm/uncached.h>
 #include <asm/sn/bte.h>
 #include <asm/sn/intr.h>
 #include <asm/sn/sn_sal.h>
@@ -183,7 +184,7 @@ xpc_rsvd_page_init(void)
 	 * memory protections are never restricted.
 	 */
 	if ((amos_page = xpc_vars->amos_page) == NULL) {
-		amos_page = (AMO_t *) mspec_kalloc_page(0);
+		amos_page = (AMO_t *) TO_AMO(uncached_alloc_page(0));
 		if (amos_page == NULL) {
 			dev_err(xpc_part, "can't allocate page of AMOs\n");
 			return NULL;
@@ -200,7 +201,8 @@ xpc_rsvd_page_init(void)
 			if (ret != 0) {
 				dev_err(xpc_part, "can't change memory "
 					"protections\n");
-				mspec_kfree_page((unsigned long) amos_page);
+				uncached_free_page(__IA64_UNCACHED_OFFSET |
+						   TO_PHYS((u64) amos_page));
 				return NULL;
 			}
 		}
@@ -251,7 +253,7 @@ xpc_rsvd_page_init(void)
 	 * This signifies to the remote partition that our reserved
 	 * page is initialized.
 	 */
-	(volatile u64) rp->vars_pa = __pa(xpc_vars);
+	rp->vars_pa = __pa(xpc_vars);
 
 	return rp;
 }