Merge branch 'master'

13 files changed, 66 insertions, 33 deletions

diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 53bb9a79e27..65656c033d7 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -11,7 +11,7 @@ obj-y	:= process.o semaphore.o signal.o entry.o traps.o irq.o \
 
 obj-y				+= cpu/
 obj-y				+= timers/
-obj-$(CONFIG_ACPI)		+= acpi/
+obj-y				+= acpi/
 obj-$(CONFIG_X86_BIOS_REBOOT)	+= reboot.o
 obj-$(CONFIG_MCA)		+= mca.o
 obj-$(CONFIG_X86_MSR)		+= msr.o
diff --git a/arch/i386/kernel/acpi/Makefile b/arch/i386/kernel/acpi/Makefile
index d51c7313cae..7e9ac99354f 100644
--- a/arch/i386/kernel/acpi/Makefile
+++ b/arch/i386/kernel/acpi/Makefile
@@ -1,4 +1,4 @@
-obj-y				:= boot.o
+obj-$(CONFIG_ACPI)		+= boot.o
 obj-$(CONFIG_X86_IO_APIC)	+= earlyquirk.o
 obj-$(CONFIG_ACPI_SLEEP)	+= sleep.o wakeup.o
 
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 79577f0ace9..f1a21945963 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -1111,9 +1111,6 @@ int __init acpi_boot_table_init(void)
 		disable_acpi();
 		return error;
 	}
-#ifdef __i386__
-	check_acpi_pci();
-#endif
 
 	acpi_table_parse(ACPI_BOOT, acpi_parse_sbf);
 
diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c
index f1b9d2a46da..2e3b643a4dc 100644
--- a/arch/i386/kernel/acpi/earlyquirk.c
+++ b/arch/i386/kernel/acpi/earlyquirk.c
@@ -7,14 +7,22 @@
 #include <linux/pci.h>
 #include <asm/pci-direct.h>
 #include <asm/acpi.h>
+#include <asm/apic.h>
 
 static int __init check_bridge(int vendor, int device)
 {
+#ifdef CONFIG_ACPI
 	/* According to Nvidia all timer overrides are bogus. Just ignore
 	   them all. */
 	if (vendor == PCI_VENDOR_ID_NVIDIA) {
 		acpi_skip_timer_override = 1;
 	}
+#endif
+	if (vendor == PCI_VENDOR_ID_ATI && timer_over_8254 == 1) {
+		timer_over_8254 = 0;
+		printk(KERN_INFO "ATI board detected. Disabling timer routing "
+				"over 8254.\n");
+	}
 	return 0;
 }
 
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index f39e09ef64e..776c90989e0 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -570,16 +570,18 @@ void __devinit setup_local_APIC(void)
  */
 void lapic_shutdown(void)
 {
+	unsigned long flags;
+
 	if (!cpu_has_apic)
 		return;
 
-	local_irq_disable();
+	local_irq_save(flags);
 	clear_local_APIC();
 
 	if (enabled_via_apicbase)
 		disable_local_APIC();
 
-	local_irq_enable();
+	local_irq_restore(flags);
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index 4ecd4b326de..e6bd095ae10 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -278,10 +278,10 @@ void __devinit generic_identify(struct cpuinfo_x86 * c)
 			c->x86_capability[4] = excap;
 			c->x86 = (tfms >> 8) & 15;
 			c->x86_model = (tfms >> 4) & 15;
-			if (c->x86 == 0xf) {
+			if (c->x86 == 0xf)
 				c->x86 += (tfms >> 20) & 0xff;
+			if (c->x86 >= 0x6)
 				c->x86_model += ((tfms >> 16) & 0xF) << 4;
-			} 
 			c->x86_mask = tfms & 15;
 		} else {
 			/* Have CPUID level 0 only - unheard of */
diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c
index e3e42fd6240..c9cad7ba0d2 100644
--- a/arch/i386/kernel/efi.c
+++ b/arch/i386/kernel/efi.c
@@ -70,10 +70,13 @@ static void efi_call_phys_prelog(void)
 {
 	unsigned long cr4;
 	unsigned long temp;
+	struct Xgt_desc_struct *cpu_gdt_descr;
 
 	spin_lock(&efi_rt_lock);
 	local_irq_save(efi_rt_eflags);
 
+	cpu_gdt_descr = &per_cpu(cpu_gdt_descr, 0);
+
 	/*
 	 * If I don't have PSE, I should just duplicate two entries in page
 	 * directory. If I have PSE, I just need to duplicate one entry in
@@ -103,18 +106,17 @@ static void efi_call_phys_prelog(void)
 	 */
 	local_flush_tlb();
 
-	per_cpu(cpu_gdt_descr, 0).address =
-				 __pa(per_cpu(cpu_gdt_descr, 0).address);
-	load_gdt((struct Xgt_desc_struct *)__pa(&per_cpu(cpu_gdt_descr, 0)));
+	cpu_gdt_descr->address = __pa(cpu_gdt_descr->address);
+	load_gdt(cpu_gdt_descr);
 }
 
 static void efi_call_phys_epilog(void)
 {
 	unsigned long cr4;
+	struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, 0);
 
-	per_cpu(cpu_gdt_descr, 0).address =
-			(unsigned long)__va(per_cpu(cpu_gdt_descr, 0).address);
-	load_gdt((struct Xgt_desc_struct *)__va(&per_cpu(cpu_gdt_descr, 0)));
+	cpu_gdt_descr->address = __va(cpu_gdt_descr->address);
+	load_gdt(cpu_gdt_descr);
 
 	cr4 = read_cr4();
 
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 235822b3f41..39d9a5fa907 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -51,6 +51,8 @@ static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
 
 static DEFINE_SPINLOCK(ioapic_lock);
 
+int timer_over_8254 __initdata = 1;
+
 /*
  *	Is the SiS APIC rmw bug present ?
  *	-1 = don't know, 0 = no, 1 = yes
@@ -2267,7 +2269,8 @@ static inline void check_timer(void)
 	apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
 	init_8259A(1);
 	timer_ack = 1;
-	enable_8259A_irq(0);
+	if (timer_over_8254 > 0)
+		enable_8259A_irq(0);
 
 	pin1  = find_isa_irq_pin(0, mp_INT);
 	apic1 = find_isa_irq_apic(0, mp_INT);
@@ -2392,6 +2395,20 @@ void __init setup_IO_APIC(void)
 		print_IO_APIC();
 }
 
+static int __init setup_disable_8254_timer(char *s)
+{
+	timer_over_8254 = -1;
+	return 1;
+}
+static int __init setup_enable_8254_timer(char *s)
+{
+	timer_over_8254 = 2;
+	return 1;
+}
+
+__setup("disable_8254_timer", setup_disable_8254_timer);
+__setup("enable_8254_timer", setup_enable_8254_timer);
+
 /*
  *	Called after all the initialization is done. If we didnt find any
  *	APIC bugs then we can allow the modify fast path
diff --git a/arch/i386/kernel/machine_kexec.c b/arch/i386/kernel/machine_kexec.c
index a912fed4848..f73d7374a2b 100644
--- a/arch/i386/kernel/machine_kexec.c
+++ b/arch/i386/kernel/machine_kexec.c
@@ -116,13 +116,13 @@ static void load_segments(void)
 	__asm__ __volatile__ (
 		"\tljmp $"STR(__KERNEL_CS)",$1f\n"
 		"\t1:\n"
-		"\tmovl $"STR(__KERNEL_DS)",%eax\n"
-		"\tmovl %eax,%ds\n"
-		"\tmovl %eax,%es\n"
-		"\tmovl %eax,%fs\n"
-		"\tmovl %eax,%gs\n"
-		"\tmovl %eax,%ss\n"
-		);
+		"\tmovl $"STR(__KERNEL_DS)",%%eax\n"
+		"\tmovl %%eax,%%ds\n"
+		"\tmovl %%eax,%%es\n"
+		"\tmovl %%eax,%%fs\n"
+		"\tmovl %%eax,%%gs\n"
+		"\tmovl %%eax,%%ss\n"
+		::: "eax", "memory");
 #undef STR
 #undef __STR
 }
diff --git a/arch/i386/kernel/microcode.c b/arch/i386/kernel/microcode.c
index d3fdf0057d8..5390b521aca 100644
--- a/arch/i386/kernel/microcode.c
+++ b/arch/i386/kernel/microcode.c
@@ -74,6 +74,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/cpumask.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
@@ -250,8 +251,8 @@ static int find_matching_ucodes (void)
 			error = -EINVAL;
 			goto out;
 		}
-		
-		for (cpu_num = 0; cpu_num < num_online_cpus(); cpu_num++) {
+
+		for_each_online_cpu(cpu_num) {
 			struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
 			if (uci->err != MC_NOTFOUND) /* already found a match or not an online cpu*/
 				continue;
@@ -293,7 +294,7 @@ static int find_matching_ucodes (void)
 					error = -EFAULT;
 					goto out;
 				}
-				for (cpu_num = 0; cpu_num < num_online_cpus(); cpu_num++) {
+				for_each_online_cpu(cpu_num) {
 					struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
 					if (uci->err != MC_NOTFOUND) /* already found a match or not an online cpu*/
 						continue;
@@ -304,7 +305,9 @@ static int find_matching_ucodes (void)
 			}
 		}
 		/* now check if any cpu has matched */
-		for (cpu_num = 0, allocated_flag = 0, sum = 0; cpu_num < num_online_cpus(); cpu_num++) {
+		allocated_flag = 0;
+		sum = 0;
+		for_each_online_cpu(cpu_num) {
 			if (ucode_cpu_info[cpu_num].err == MC_MARKED) { 
 				struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
 				if (!allocated_flag) {
@@ -415,12 +418,12 @@ static int do_microcode_update (void)
 	}
 
 out_free:
-	for (i = 0; i < num_online_cpus(); i++) {
+	for_each_online_cpu(i) {
 		if (ucode_cpu_info[i].mc) {
 			int j;
 			void *tmp = ucode_cpu_info[i].mc;
 			vfree(tmp);
-			for (j = i; j < num_online_cpus(); j++) {
+			for_each_online_cpu(j) {
 				if (ucode_cpu_info[j].mc == tmp)
 					ucode_cpu_info[j].mc = NULL;
 			}
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 63f39a7e2c9..be87c5e2ee9 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -357,7 +357,7 @@ static void clear_msr_range(unsigned int base, unsigned int n)
 		wrmsr(base+i, 0, 0);
 }
 
-static inline void write_watchdog_counter(const char *descr)
+static void write_watchdog_counter(const char *descr)
 {
 	u64 count = (u64)cpu_khz * 1000;
 
@@ -544,7 +544,7 @@ void nmi_watchdog_tick (struct pt_regs * regs)
 			 * die_nmi will return ONLY if NOTIFY_STOP happens..
 			 */
 			die_nmi(regs, "NMI Watchdog detected LOCKUP");
-
+	} else {
 		last_irq_sums[cpu] = sum;
 		alert_counter[cpu] = 0;
 	}
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 51e513b4f72..ab62a9f4701 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -1599,6 +1599,10 @@ void __init setup_arch(char **cmdline_p)
 	if (efi_enabled)
 		efi_map_memmap();
 
+#ifdef CONFIG_X86_IO_APIC
+	check_acpi_pci();	/* Checks more than just ACPI actually */
+#endif
+
 #ifdef CONFIG_ACPI
 	/*
 	 * Parse the ACPI tables for possible boot-time SMP configuration.
diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c
index a14d594bfbe..9d307475985 100644
--- a/arch/i386/kernel/time.c
+++ b/arch/i386/kernel/time.c
@@ -412,9 +412,9 @@ static int timer_resume(struct sys_device *dev)
 	write_seqlock_irqsave(&xtime_lock, flags);
 	xtime.tv_sec = sec;
 	xtime.tv_nsec = 0;
-	write_sequnlock_irqrestore(&xtime_lock, flags);
-	jiffies += sleep_length;
+	jiffies_64 += sleep_length;
 	wall_jiffies += sleep_length;
+	write_sequnlock_irqrestore(&xtime_lock, flags);
 	if (last_timer->resume)
 		last_timer->resume();
 	cur_timer = last_timer;