14 files changed, 211 insertions, 87 deletions

diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 307514f7a282..09a0dbc17fb6 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -13,6 +13,11 @@ obj-$(CONFIG_IA64_BRL_EMU)	+= brl_emu.o
 obj-$(CONFIG_IA64_GENERIC)	+= acpi-ext.o
 obj-$(CONFIG_IA64_HP_ZX1)	+= acpi-ext.o
 obj-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += acpi-ext.o
+
+ifneq ($(CONFIG_ACPI_PROCESSOR),)
+obj-y				+= acpi-processor.o
+endif
+
 obj-$(CONFIG_IA64_PALINFO)	+= palinfo.o
 obj-$(CONFIG_IOSAPIC)		+= iosapic.o
 obj-$(CONFIG_MODULES)		+= module.o
diff --git a/arch/ia64/kernel/acpi-ext.c b/arch/ia64/kernel/acpi-ext.c
index 13a5b3b49bf8..4a5574ff007b 100644
--- a/arch/ia64/kernel/acpi-ext.c
+++ b/arch/ia64/kernel/acpi-ext.c
@@ -33,33 +33,33 @@ acpi_vendor_resource_match(struct acpi_resource *resource, void *context)
 	struct acpi_vendor_info *info = (struct acpi_vendor_info *)context;
 	struct acpi_resource_vendor *vendor;
 	struct acpi_vendor_descriptor *descriptor;
-	u32 length;
+	u32 byte_length;
 
-	if (resource->id != ACPI_RSTYPE_VENDOR)
+	if (resource->type != ACPI_RESOURCE_TYPE_VENDOR)
 		return AE_OK;
 
 	vendor = (struct acpi_resource_vendor *)&resource->data;
-	descriptor = (struct acpi_vendor_descriptor *)vendor->reserved;
-	if (vendor->length <= sizeof(*info->descriptor) ||
+	descriptor = (struct acpi_vendor_descriptor *)vendor->byte_data;
+	if (vendor->byte_length <= sizeof(*info->descriptor) ||
 	    descriptor->guid_id != info->descriptor->guid_id ||
 	    efi_guidcmp(descriptor->guid, info->descriptor->guid))
 		return AE_OK;
 
-	length = vendor->length - sizeof(struct acpi_vendor_descriptor);
-	info->data = acpi_os_allocate(length);
+	byte_length = vendor->byte_length - sizeof(struct acpi_vendor_descriptor);
+	info->data = acpi_os_allocate(byte_length);
 	if (!info->data)
 		return AE_NO_MEMORY;
 
 	memcpy(info->data,
-	       vendor->reserved + sizeof(struct acpi_vendor_descriptor),
-	       length);
-	info->length = length;
+	       vendor->byte_data + sizeof(struct acpi_vendor_descriptor),
+	       byte_length);
+	info->length = byte_length;
 	return AE_CTRL_TERMINATE;
 }
 
 acpi_status
 acpi_find_vendor_resource(acpi_handle obj, struct acpi_vendor_descriptor * id,
-			  u8 ** data, u32 * length)
+			  u8 ** data, u32 * byte_length)
 {
 	struct acpi_vendor_info info;
 
@@ -72,7 +72,7 @@ acpi_find_vendor_resource(acpi_handle obj, struct acpi_vendor_descriptor * id,
 		return AE_NOT_FOUND;
 
 	*data = info.data;
-	*length = info.length;
+	*byte_length = info.length;
 	return AE_OK;
 }
 
diff --git a/arch/ia64/kernel/acpi-processor.c b/arch/ia64/kernel/acpi-processor.c
new file mode 100644
index 000000000000..e683630c8ce2
--- /dev/null
+++ b/arch/ia64/kernel/acpi-processor.c
@@ -0,0 +1,67 @@
+/*
+ * arch/ia64/kernel/cpufreq/processor.c
+ *
+ * Copyright (C) 2005 Intel Corporation
+ * 	Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
+ * 	- Added _PDC for platforms with Intel CPUs
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/acpi.h>
+
+#include <acpi/processor.h>
+#include <asm/acpi.h>
+
+static void init_intel_pdc(struct acpi_processor *pr)
+{
+	struct acpi_object_list *obj_list;
+	union acpi_object *obj;
+	u32 *buf;
+
+	/* allocate and initialize pdc. It will be used later. */
+	obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL);
+	if (!obj_list) {
+		printk(KERN_ERR "Memory allocation error\n");
+		return;
+	}
+
+	obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL);
+	if (!obj) {
+		printk(KERN_ERR "Memory allocation error\n");
+		kfree(obj_list);
+		return;
+	}
+
+	buf = kmalloc(12, GFP_KERNEL);
+	if (!buf) {
+		printk(KERN_ERR "Memory allocation error\n");
+		kfree(obj);
+		kfree(obj_list);
+		return;
+	}
+
+	buf[0] = ACPI_PDC_REVISION_ID;
+	buf[1] = 1;
+	buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
+
+	obj->type = ACPI_TYPE_BUFFER;
+	obj->buffer.length = 12;
+	obj->buffer.pointer = (u8 *) buf;
+	obj_list->count = 1;
+	obj_list->pointer = obj;
+	pr->pdc = obj_list;
+
+	return;
+}
+
+/* Initialize _PDC data based on the CPU vendor */
+void arch_acpi_processor_init_pdc(struct acpi_processor *pr)
+{
+	pr->pdc = NULL;
+	init_intel_pdc(pr);
+	return;
+}
+
+EXPORT_SYMBOL(arch_acpi_processor_init_pdc);
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 9ad94ddf6687..d2702c419cf8 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -567,16 +567,16 @@ void __init acpi_numa_arch_fixup(void)
  * success: return IRQ number (>=0)
  * failure: return < 0
  */
-int acpi_register_gsi(u32 gsi, int edge_level, int active_high_low)
+int acpi_register_gsi(u32 gsi, int triggering, int polarity)
 {
 	if (has_8259 && gsi < 16)
 		return isa_irq_to_vector(gsi);
 
 	return iosapic_register_intr(gsi,
-				     (active_high_low ==
+				     (polarity ==
 				      ACPI_ACTIVE_HIGH) ? IOSAPIC_POL_HIGH :
 				     IOSAPIC_POL_LOW,
-				     (edge_level ==
+				     (triggering ==
 				      ACPI_EDGE_SENSITIVE) ? IOSAPIC_EDGE :
 				     IOSAPIC_LEVEL);
 }
diff --git a/arch/ia64/kernel/cpufreq/Makefile b/arch/ia64/kernel/cpufreq/Makefile
index f748d34c02f0..4838f2a57c7a 100644
--- a/arch/ia64/kernel/cpufreq/Makefile
+++ b/arch/ia64/kernel/cpufreq/Makefile
@@ -1 +1,2 @@
 obj-$(CONFIG_IA64_ACPI_CPUFREQ)		+= acpi-cpufreq.o
+
diff --git a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c b/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
index da4d5cf80a48..5a1bf815282d 100644
--- a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
+++ b/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
@@ -269,48 +269,6 @@ acpi_cpufreq_verify (
 }
 
 
-/*
- * processor_init_pdc - let BIOS know about the SMP capabilities
- * of this driver
- * @perf: processor-specific acpi_io_data struct
- * @cpu: CPU being initialized
- *
- * To avoid issues with legacy OSes, some BIOSes require to be informed of
- * the SMP capabilities of OS P-state driver. Here we set the bits in _PDC
- * accordingly. Actual call to _PDC is done in driver/acpi/processor.c
- */
-static void
-processor_init_pdc (
-		struct acpi_processor_performance *perf,
-		unsigned int cpu,
-		struct acpi_object_list *obj_list
-		)
-{
-	union acpi_object *obj;
-	u32 *buf;
-
-	dprintk("processor_init_pdc\n");
-
-	perf->pdc = NULL;
-	/* Initialize pdc. It will be used later. */
-	if (!obj_list)
-		return;
-
-	if (!(obj_list->count && obj_list->pointer))
-		return;
-
-	obj = obj_list->pointer;
-	if ((obj->buffer.length == 12) && obj->buffer.pointer) {
-		buf = (u32 *)obj->buffer.pointer;
-       		buf[0] = ACPI_PDC_REVISION_ID;
-       		buf[1] = 1;
-       		buf[2] = ACPI_PDC_EST_CAPABILITY_SMP;
-		perf->pdc = obj_list;
-	}
-	return;
-}
-
-
 static int
 acpi_cpufreq_cpu_init (
 	struct cpufreq_policy   *policy)
@@ -320,14 +278,7 @@ acpi_cpufreq_cpu_init (
 	struct cpufreq_acpi_io	*data;
 	unsigned int		result = 0;
 
-	union acpi_object		arg0 = {ACPI_TYPE_BUFFER};
-	u32				arg0_buf[3];
-	struct acpi_object_list 	arg_list = {1, &arg0};
-
 	dprintk("acpi_cpufreq_cpu_init\n");
-	/* setup arg_list for _PDC settings */
-        arg0.buffer.length = 12;
-        arg0.buffer.pointer = (u8 *) arg0_buf;
 
 	data = kmalloc(sizeof(struct cpufreq_acpi_io), GFP_KERNEL);
 	if (!data)
@@ -337,9 +288,7 @@ acpi_cpufreq_cpu_init (
 
 	acpi_io_data[cpu] = data;
 
-	processor_init_pdc(&data->acpi_data, cpu, &arg_list);
 	result = acpi_processor_register_performance(&data->acpi_data, cpu);
-	data->acpi_data.pdc = NULL;
 
 	if (result)
 		goto err_free;
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index c485a3b32ba8..9990320b6f9a 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -410,24 +410,16 @@ efi_init (void)
 	efi_config_table_t *config_tables;
 	efi_char16_t *c16;
 	u64 efi_desc_size;
-	char *cp, *end, vendor[100] = "unknown";
+	char *cp, vendor[100] = "unknown";
 	extern char saved_command_line[];
 	int i;
 
 	/* it's too early to be able to use the standard kernel command line support... */
 	for (cp = saved_command_line; *cp; ) {
 		if (memcmp(cp, "mem=", 4) == 0) {
-			cp += 4;
-			mem_limit = memparse(cp, &end);
-			if (end != cp)
-				break;
-			cp = end;
+			mem_limit = memparse(cp + 4, &cp);
 		} else if (memcmp(cp, "max_addr=", 9) == 0) {
-			cp += 9;
-			max_addr = GRANULEROUNDDOWN(memparse(cp, &end));
-			if (end != cp)
-				break;
-			cp = end;
+			max_addr = GRANULEROUNDDOWN(memparse(cp + 9, &cp));
 		} else {
 			while (*cp != ' ' && *cp)
 				++cp;
@@ -458,7 +450,7 @@ efi_init (void)
 	/* Show what we know for posterity */
 	c16 = __va(efi.systab->fw_vendor);
 	if (c16) {
-		for (i = 0;i < (int) sizeof(vendor) && *c16; ++i)
+		for (i = 0;i < (int) sizeof(vendor) - 1 && *c16; ++i)
 			vendor[i] = *c16++;
 		vendor[i] = '\0';
 	}
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index fbc7ea35dd57..f1778a84ea61 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -352,6 +352,7 @@ start_ap:
 	mov ar.rsc=0		// place RSE in enforced lazy mode
 	;;
 	loadrs			// clear the dirty partition
+	mov IA64_KR(PER_CPU_DATA)=r0	// clear physical per-CPU base
 	;;
 	mov ar.bspstore=r2	// establish the new RSE stack
 	;;
diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S
index 403a80a58c13..60a464bfd9e2 100644
--- a/arch/ia64/kernel/mca_asm.S
+++ b/arch/ia64/kernel/mca_asm.S
@@ -512,7 +512,7 @@ ia64_state_save:
 	st8 [temp1]=r12		// os_status, default is cold boot
 	mov r6=IA64_MCA_SAME_CONTEXT
 	;;
-	st8 [temp1]=r6		// context, default is same context
+	st8 [temp2]=r6		// context, default is same context
 
 	// Save the pt_regs data that is not in minstate.  The previous code
 	// left regs at sos.
diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c
index acc0f132f86c..056f7a6eedc7 100644
--- a/arch/ia64/kernel/sal.c
+++ b/arch/ia64/kernel/sal.c
@@ -14,6 +14,7 @@
 #include <linux/spinlock.h>
 #include <linux/string.h>
 
+#include <asm/delay.h>
 #include <asm/page.h>
 #include <asm/sal.h>
 #include <asm/pal.h>
@@ -214,6 +215,78 @@ chk_nointroute_opt(void)
 static void __init sal_desc_ap_wakeup(void *p) { }
 #endif
 
+/*
+ * HP rx5670 firmware polls for interrupts during SAL_CACHE_FLUSH by reading
+ * cr.ivr, but it never writes cr.eoi.  This leaves any interrupt marked as
+ * "in-service" and masks other interrupts of equal or lower priority.
+ *
+ * HP internal defect reports: F1859, F2775, F3031.
+ */
+static int sal_cache_flush_drops_interrupts;
+
+static void __init
+check_sal_cache_flush (void)
+{
+	unsigned long flags, itv;
+	int cpu;
+	u64 vector;
+
+	cpu = get_cpu();
+	local_irq_save(flags);
+
+	/*
+	 * Schedule a timer interrupt, wait until it's reported, and see if
+	 * SAL_CACHE_FLUSH drops it.
+	 */
+	itv = ia64_get_itv();
+	BUG_ON((itv & (1 << 16)) == 0);
+
+	ia64_set_itv(IA64_TIMER_VECTOR);
+	ia64_set_itm(ia64_get_itc() + 1000);
+
+	while (!ia64_get_irr(IA64_TIMER_VECTOR))
+		cpu_relax();
+
+	ia64_sal_cache_flush(3);
+
+	if (ia64_get_irr(IA64_TIMER_VECTOR)) {
+		vector = ia64_get_ivr();
+		ia64_eoi();
+		WARN_ON(vector != IA64_TIMER_VECTOR);
+	} else {
+		sal_cache_flush_drops_interrupts = 1;
+		printk(KERN_ERR "SAL: SAL_CACHE_FLUSH drops interrupts; "
+			"PAL_CACHE_FLUSH will be used instead\n");
+		ia64_eoi();
+	}
+
+	ia64_set_itv(itv);
+	local_irq_restore(flags);
+	put_cpu();
+}
+
+s64
+ia64_sal_cache_flush (u64 cache_type)
+{
+	struct ia64_sal_retval isrv;
+
+	if (sal_cache_flush_drops_interrupts) {
+		unsigned long flags;
+		u64 progress;
+		s64 rc;
+
+		progress = 0;
+		local_irq_save(flags);
+		rc = ia64_pal_cache_flush(cache_type,
+			PAL_CACHE_FLUSH_INVALIDATE, &progress, NULL);
+		local_irq_restore(flags);
+		return rc;
+	}
+
+	SAL_CALL(isrv, SAL_CACHE_FLUSH, cache_type, 0, 0, 0, 0, 0, 0);
+	return isrv.status;
+}
+
 void __init
 ia64_sal_init (struct ia64_sal_systab *systab)
 {
@@ -262,6 +335,8 @@ ia64_sal_init (struct ia64_sal_systab *systab)
 		}
 		p += SAL_DESC_SIZE(*p);
 	}
+
+	check_sal_cache_flush();
 }
 
 int
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index c0766575a3a2..35f7835294a3 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -71,6 +71,8 @@ unsigned long __per_cpu_offset[NR_CPUS];
 EXPORT_SYMBOL(__per_cpu_offset);
 #endif
 
+extern void ia64_setup_printk_clock(void);
+
 DEFINE_PER_CPU(struct cpuinfo_ia64, cpu_info);
 DEFINE_PER_CPU(unsigned long, local_per_cpu_offset);
 DEFINE_PER_CPU(unsigned long, ia64_phys_stacked_size_p8);
@@ -445,6 +447,8 @@ setup_arch (char **cmdline_p)
 	/* process SAL system table: */
 	ia64_sal_init(efi.sal_systab);
 
+	ia64_setup_printk_clock();
+
 #ifdef CONFIG_SMP
 	cpu_physical_id(0) = hard_smp_processor_id();
 
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 028a2b95936c..a094ec49ccfa 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -278,3 +278,30 @@ udelay (unsigned long usecs)
 	}
 }
 EXPORT_SYMBOL(udelay);
+
+static unsigned long long ia64_itc_printk_clock(void)
+{
+	if (ia64_get_kr(IA64_KR_PER_CPU_DATA))
+		return sched_clock();
+	return 0;
+}
+
+static unsigned long long ia64_default_printk_clock(void)
+{
+	return (unsigned long long)(jiffies_64 - INITIAL_JIFFIES) *
+		(1000000000/HZ);
+}
+
+unsigned long long (*ia64_printk_clock)(void) = &ia64_default_printk_clock;
+
+unsigned long long printk_clock(void)
+{
+	return ia64_printk_clock();
+}
+
+void __init
+ia64_setup_printk_clock(void)
+{
+	if (!(sal_platform_features & IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT))
+		ia64_printk_clock = ia64_itc_printk_clock;
+}
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 706b7734e191..6e5eea19fa67 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -71,31 +71,33 @@ static int __init topology_init(void)
 	int i, err = 0;
 
 #ifdef CONFIG_NUMA
-	sysfs_nodes = kmalloc(sizeof(struct node) * MAX_NUMNODES, GFP_KERNEL);
+	sysfs_nodes = kzalloc(sizeof(struct node) * MAX_NUMNODES, GFP_KERNEL);
 	if (!sysfs_nodes) {
 		err = -ENOMEM;
 		goto out;
 	}
-	memset(sysfs_nodes, 0, sizeof(struct node) * MAX_NUMNODES);
 
-	/* MCD - Do we want to register all ONLINE nodes, or all POSSIBLE nodes? */
-	for_each_online_node(i)
+	/*
+	 * MCD - Do we want to register all ONLINE nodes, or all POSSIBLE nodes?
+	 */
+	for_each_online_node(i) {
 		if ((err = register_node(&sysfs_nodes[i], i, 0)))
 			goto out;
+	}
 #endif
 
-	sysfs_cpus = kmalloc(sizeof(struct ia64_cpu) * NR_CPUS, GFP_KERNEL);
+	sysfs_cpus = kzalloc(sizeof(struct ia64_cpu) * NR_CPUS, GFP_KERNEL);
 	if (!sysfs_cpus) {
 		err = -ENOMEM;
 		goto out;
 	}
-	memset(sysfs_cpus, 0, sizeof(struct ia64_cpu) * NR_CPUS);
 
-	for_each_present_cpu(i)
+	for_each_present_cpu(i) {
 		if((err = arch_register_cpu(i)))
 			goto out;
+	}
 out:
 	return err;
 }
 
-__initcall(topology_init);
+subsys_initcall(topology_init);
diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c
index 43b45b65ee5a..f9e0ae936d1a 100644
--- a/arch/ia64/kernel/unaligned.c
+++ b/arch/ia64/kernel/unaligned.c
@@ -1283,8 +1283,9 @@ within_logging_rate_limit (void)
 
 	if (jiffies - last_time > 5*HZ)
 		count = 0;
-	if (++count < 5) {
+	if (count < 5) {
 		last_time = jiffies;
+		count++;
 		return 1;
 	}
 	return 0;