Merge branch 'x86/urgent' into x86/irq

Merge reason: conflict in arch/x86/kernel/apic/io_apic.c

Resolved Conflicts:
	arch/x86/kernel/apic/io_apic.c

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

12 files changed, 99 insertions, 42 deletions

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index f9f472462753..14531abdd0ce 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -327,7 +327,6 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
         current->mm->free_area_cache = TASK_UNMAPPED_BASE;
         current->mm->cached_hole_size = 0;
 
-        current->mm->mmap = NULL;
         install_exec_creds(bprm);
         current->flags &= ~PF_FORKNOEXEC;
 
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 7c7c16cde1f8..5f61f6e0ffdd 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -160,6 +160,7 @@ extern int io_apic_get_redir_entries(int ioapic);
 struct io_apic_irq_attr;
 extern int io_apic_set_pci_routing(struct device *dev, int irq,
                  struct io_apic_irq_attr *irq_attr);
+void setup_IO_APIC_irq_extra(u32 gsi);
 extern int (*ioapic_renumber_irq)(int ioapic, int irq);
 extern void ioapic_init_mappings(void);
 extern void ioapic_insert_resources(void);
diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index ecb544e65382..e04740f7a0bb 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -11,9 +11,9 @@
 #include <linux/irqflags.h>
 
 /* entries in ARCH_DLINFO: */
-#ifdef CONFIG_IA32_EMULATION
+#if defined(CONFIG_IA32_EMULATION) || !defined(CONFIG_X86_64)
 # define AT_VECTOR_SIZE_ARCH 2
-#else
+#else /* else it's non-compat x86-64 */
 # define AT_VECTOR_SIZE_ARCH 1
 #endif
 
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 036d28adf59d..5c96b75c6ea8 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -446,6 +446,12 @@ void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
 int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
 {
         *irq = gsi;
+
+#ifdef CONFIG_X86_IO_APIC
+        if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC)
+                setup_IO_APIC_irq_extra(gsi);
+#endif
+
         return 0;
 }
 
@@ -473,7 +479,8 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity)
                 plat_gsi = mp_register_gsi(dev, gsi, trigger, polarity);
         }
 #endif
-        acpi_gsi_to_irq(plat_gsi, &irq);
+        irq = plat_gsi;
+
         return irq;
 }
 
@@ -1185,9 +1192,6 @@ static void __init acpi_process_madt(void)
                 if (!error) {
                         acpi_lapic = 1;
 
-#ifdef CONFIG_X86_BIGSMP
-                        generic_bigsmp_probe();
-#endif
                         /*
                          * Parse MADT IO-APIC entries
                          */
@@ -1197,8 +1201,6 @@ static void __init acpi_process_madt(void)
                                 acpi_ioapic = 1;
 
                                 smp_found_config = 1;
-                                if (apic->setup_apic_routing)
-                                        apic->setup_apic_routing();
                         }
                 }
                 if (error == -EINVAL) {
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 3987e4408f75..dfca210f6a10 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1641,9 +1641,7 @@ int __init APIC_init_uniprocessor(void)
 #endif
 
         enable_IR_x2apic();
-#ifdef CONFIG_X86_64
         default_setup_apic_routing();
-#endif
 
         verify_local_APIC();
         connect_bsp_APIC();
@@ -1891,21 +1889,6 @@ void __cpuinit generic_processor_info(int apicid, int version)
         if (apicid > max_physical_apicid)
                 max_physical_apicid = apicid;
 
-#ifdef CONFIG_X86_32
-        if (num_processors > 8) {
-                switch (boot_cpu_data.x86_vendor) {
-                case X86_VENDOR_INTEL:
-                        if (!APIC_XAPIC(version)) {
-                                def_to_bigsmp = 0;
-                                break;
-                        }
-                        /* If P4 and above fall through */
-                case X86_VENDOR_AMD:
-                        def_to_bigsmp = 1;
-                }
-        }
-#endif
-
 #if defined(CONFIG_SMP) || defined(CONFIG_X86_64)
         early_per_cpu(x86_cpu_to_apicid, cpu) = apicid;
         early_per_cpu(x86_bios_cpu_apicid, cpu) = apicid;
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index c64ddd9d9979..527390cd6115 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1539,6 +1539,56 @@ static void __init setup_IO_APIC_irqs(void)
 }
 
 /*
+ * for the gsit that is not in first ioapic
+ * but could not use acpi_register_gsi()
+ * like some special sci in IBM x3330
+ */
+void setup_IO_APIC_irq_extra(u32 gsi)
+{
+        int apic_id = 0, pin, idx, irq;
+        int node = cpu_to_node(boot_cpu_id);
+        struct irq_desc *desc;
+        struct irq_cfg *cfg;
+
+        /*
+         * Convert 'gsi' to 'ioapic.pin'.
+         */
+        apic_id = mp_find_ioapic(gsi);
+        if (apic_id < 0)
+                return;
+
+        pin = mp_find_ioapic_pin(apic_id, gsi);
+        idx = find_irq_entry(apic_id, pin, mp_INT);
+        if (idx == -1)
+                return;
+
+        irq = pin_2_irq(idx, apic_id, pin);
+#ifdef CONFIG_SPARSE_IRQ
+        desc = irq_to_desc(irq);
+        if (desc)
+                return;
+#endif
+        desc = irq_to_desc_alloc_node(irq, node);
+        if (!desc) {
+                printk(KERN_INFO "can not get irq_desc for %d\n", irq);
+                return;
+        }
+
+        cfg = desc->chip_data;
+        add_pin_to_irq_node(cfg, node, apic_id, pin);
+
+        if (test_bit(pin, mp_ioapic_routing[apic_id].pin_programmed)) {
+                pr_debug("Pin %d-%d already programmed\n",
+                         mp_ioapics[apic_id].apicid, pin);
+                return;
+        }
+        set_bit(pin, mp_ioapic_routing[apic_id].pin_programmed);
+
+        setup_IO_APIC_irq(apic_id, pin, irq, desc,
+                        irq_trigger(idx), irq_polarity(idx));
+}
+
+/*
  * Set up the timer pin, possibly with the 8259A-master behind.
  */
 static void __init setup_timer_IRQ0_pin(unsigned int apic_id, unsigned int pin,
@@ -3252,14 +3302,12 @@ int create_irq(void)
 void destroy_irq(unsigned int irq)
 {
         unsigned long flags;
-        struct irq_cfg *cfg;
 
         dynamic_irq_cleanup_keep_chip_data(irq);
 
         free_irte(irq);
         spin_lock_irqsave(&vector_lock, flags);
-        cfg = irq_to_desc(irq)->chip_data;
-        __clear_irq_vector(irq, cfg);
+        __clear_irq_vector(irq, get_irq_chip_data(irq));
         spin_unlock_irqrestore(&vector_lock, flags);
 }
 
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index 1a6559f6768c..99d2fe016084 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -52,7 +52,32 @@ static int __init print_ipi_mode(void)
 }
 late_initcall(print_ipi_mode);
 
-void default_setup_apic_routing(void)
+void __init default_setup_apic_routing(void)
+{
+        int version = apic_version[boot_cpu_physical_apicid];
+
+        if (num_possible_cpus() > 8) {
+                switch (boot_cpu_data.x86_vendor) {
+                case X86_VENDOR_INTEL:
+                        if (!APIC_XAPIC(version)) {
+                                def_to_bigsmp = 0;
+                                break;
+                        }
+                        /* If P4 and above fall through */
+                case X86_VENDOR_AMD:
+                        def_to_bigsmp = 1;
+                }
+        }
+
+#ifdef CONFIG_X86_BIGSMP
+        generic_bigsmp_probe();
+#endif
+
+        if (apic->setup_apic_routing)
+                apic->setup_apic_routing();
+}
+
+static void setup_apic_flat_routing(void)
 {
 #ifdef CONFIG_X86_IO_APIC
         printk(KERN_INFO
@@ -103,7 +128,7 @@ struct apic apic_default = {
         .init_apic_ldr                  = default_init_apic_ldr,
 
         .ioapic_phys_id_map             = default_ioapic_phys_id_map,
-        .setup_apic_routing             = default_setup_apic_routing,
+        .setup_apic_routing             = setup_apic_flat_routing,
         .multi_timer_check              = NULL,
         .apicid_to_node                 = default_apicid_to_node,
         .cpu_to_logical_apicid          = default_cpu_to_logical_apicid,
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 450fe2064a14..83e9be4778e2 100644
--- a/arch/x86/kernel/apic/probe_64.c
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -67,7 +67,7 @@ void __init default_setup_apic_routing(void)
         }
 #endif
 
-        if (apic == &apic_flat && num_processors > 8)
+        if (apic == &apic_flat && num_possible_cpus() > 8)
                         apic = &apic_physflat;
 
         printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 40b54ceb68b5..a2c1edd2d3ac 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -359,13 +359,6 @@ static int __init smp_read_mpc(struct mpc_table *mpc, unsigned early)
                 x86_init.mpparse.mpc_record(1);
         }
 
-#ifdef CONFIG_X86_BIGSMP
-        generic_bigsmp_probe();
-#endif
-
-        if (apic->setup_apic_routing)
-                apic->setup_apic_routing();
-
         if (!num_processors)
                 printk(KERN_ERR "MPTABLE: no processors registered!\n");
         return num_processors;
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 704bddcdf64d..8e1aac86b50c 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -461,6 +461,14 @@ static struct dmi_system_id __initdata pci_reboot_dmi_table[] = {
                         DMI_MATCH(DMI_PRODUCT_NAME, "Macmini3,1"),
                 },
         },
+        {       /* Handle problems with rebooting on the iMac9,1. */
+                .callback = set_pci_reboot,
+                .ident = "Apple iMac9,1",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "iMac9,1"),
+                },
+        },
         { }
 };
 
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index eff2fe175422..96f5f40a5c29 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1083,9 +1083,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
         set_cpu_sibling_map(0);
 
         enable_IR_x2apic();
-#ifdef CONFIG_X86_64
         default_setup_apic_routing();
-#endif
 
         if (smp_sanity_check(max_cpus) < 0) {
                 printk(KERN_INFO "SMP disabled\n");
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index 71da1bca13cb..738e6593799d 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -18,7 +18,7 @@ static inline pte_t gup_get_pte(pte_t *ptep)
 #else
         /*
          * With get_user_pages_fast, we walk down the pagetables without taking
-         * any locks.  For this we would like to load the pointers atoimcally,
+         * any locks.  For this we would like to load the pointers atomically,
          * but that is not possible (without expensive cmpxchg8b) on PAE.  What
          * we do have is the guarantee that a pte will only either go from not
          * present to present, or present to not present or both -- it will not