diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 20e6a795e16006500dc151b8a98315b94b32fa71..d2c6c930b491916843e76d2c6838e53b5890301b 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -212,9 +212,9 @@ extern int __get_user_bad(void);
: "A" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
#else
#define __put_user_asm_u64(x, ptr, retval, errret) \
- __put_user_asm(x, ptr, retval, "q", "", "Zr", errret)
+ __put_user_asm(x, ptr, retval, "q", "", "er", errret)
#define __put_user_asm_ex_u64(x, addr) \
- __put_user_asm_ex(x, addr, "q", "", "Zr")
+ __put_user_asm_ex(x, addr, "q", "", "er")
#define __put_user_x8(x, ptr, __ret_pu) __put_user_x(8, x, ptr, __ret_pu)
#endif
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 8cc687326eb80f20726852c9ba66c68837e8176a..db24b215fc50668bcf3f9da0f6757016aab7956e 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -88,11 +88,11 @@ int __copy_to_user(void __user *dst, const void *src, unsigned size)
ret, "l", "k", "ir", 4);
return ret;
case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst,
- ret, "q", "", "ir", 8);
+ ret, "q", "", "er", 8);
return ret;
case 10:
__put_user_asm(*(u64 *)src, (u64 __user *)dst,
- ret, "q", "", "ir", 10);
+ ret, "q", "", "er", 10);
if (unlikely(ret))
return ret;
asm("":::"memory");
@@ -101,12 +101,12 @@ int __copy_to_user(void __user *dst, const void *src, unsigned size)
return ret;
case 16:
__put_user_asm(*(u64 *)src, (u64 __user *)dst,
- ret, "q", "", "ir", 16);
+ ret, "q", "", "er", 16);
if (unlikely(ret))
return ret;
asm("":::"memory");
__put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst,
- ret, "q", "", "ir", 8);
+ ret, "q", "", "er", 8);
return ret;
default:
return copy_user_generic((__force void *)dst, src, size);
@@ -157,7 +157,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
ret, "q", "", "=r", 8);
if (likely(!ret))
__put_user_asm(tmp, (u64 __user *)dst,
- ret, "q", "", "ir", 8);
+ ret, "q", "", "er", 8);
return ret;
}
default:
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 28e5f59560429a7bb754a1dca7cb93935d481e07..e2485b03f1cf2649341c9c8d9412495f894eeaa4 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -356,7 +356,7 @@ static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
#endif
#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_PCI)
/* check CPU config space for extended APIC ID */
- if (c->x86 >= 0xf) {
+ if (cpu_has_apic && c->x86 >= 0xf) {
unsigned int val;
val = read_pci_config(0, 24, 0, 0x68);
if ((val & ((1 << 17) | (1 << 18))) == ((1 << 17) | (1 << 18)))
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 484c1e5f658e6b5d932566cd41f7813c44d00b71..1cfb623ce11c9aa7217ea5d1f794029c10ec3607 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1692,17 +1692,15 @@ static ssize_t set_trigger(struct sys_device *s, struct sysdev_attribute *attr,
const char *buf, size_t siz)
{
char *p;
- int len;
strncpy(mce_helper, buf, sizeof(mce_helper));
mce_helper[sizeof(mce_helper)-1] = 0;
- len = strlen(mce_helper);
p = strchr(mce_helper, '\n');
- if (*p)
+ if (p)
*p = 0;
- return len;
+ return strlen(mce_helper) + !!p;
}
static ssize_t set_ignore_ce(struct sys_device *s,
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 696f0e475c2d6d8b8b5f2eb4a22e4d934a00e561..92b7703d3d58e6ad278e45d733fdcac1505772fa 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -187,7 +187,7 @@ static void __init apic_intr_init(void)
#ifdef CONFIG_X86_THERMAL_VECTOR
alloc_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
#endif
-#ifdef CONFIG_X86_THRESHOLD
+#ifdef CONFIG_X86_MCE_THRESHOLD
alloc_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt);
#endif
#if defined(CONFIG_X86_NEW_MCE) && defined(CONFIG_X86_LOCAL_APIC)
diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c
index 846510b78a092324bfa7adc61ee72ee25e8792cc..2a62d843f015a4804440dce2e502bb3aea47abc7 100644
--- a/arch/x86/kernel/mfgpt_32.c
+++ b/arch/x86/kernel/mfgpt_32.c
@@ -347,7 +347,7 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
static struct irqaction mfgptirq = {
.handler = mfgpt_tick,
- .flags = IRQF_DISABLED | IRQF_NOBALANCING,
+ .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
.name = "mfgpt-timer"
};
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index d2d1ce8170f06c8573ac022f4e49dfc59a371c9b..508e982dd072404d14005a90a8c007682e10fb89 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -249,6 +249,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "VGN-Z540N"),
},
},
+ { /* Handle problems with rebooting on CompuLab SBC-FITPC2 */
+ .callback = set_bios_reboot,
+ .ident = "CompuLab SBC-FITPC2",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "CompuLab"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "SBC-FITPC2"),
+ },
+ },
{ }
};
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index de2cab13284495da052984e093508f5884af3de1..63f32d220ef22e2d681078ec556698e15ff7645f 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -672,6 +672,19 @@ static struct dmi_system_id __initdata bad_bios_dmi_table[] = {
DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies"),
},
},
+ {
+ /*
+ * AMI BIOS with low memory corruption was found on Intel DG45ID board.
+ * It hase different DMI_BIOS_VENDOR = "Intel Corp.", for now we will
+ * match only DMI_BOARD_NAME and see if there is more bad products
+ * with this vendor.
+ */
+ .callback = dmi_low_memory_corruption,
+ .ident = "AMI BIOS",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "DG45ID"),
+ },
+ },
#endif
{}
};
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 367e878820418789055a6a2da48aa27350ada443..59f31d2dd43567f6c995ccf322f666148cc7fb39 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -112,11 +112,6 @@ SECTIONS
_sdata = .;
DATA_DATA
CONSTRUCTORS
-
-#ifdef CONFIG_X86_64
- /* End of data section */
- _edata = .;
-#endif
} :data
#ifdef CONFIG_X86_32
@@ -156,10 +151,8 @@ SECTIONS
.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
*(.data.read_mostly)
-#ifdef CONFIG_X86_32
/* End of data section */
_edata = .;
-#endif
}
#ifdef CONFIG_X86_64
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 2dfcbf9df2ae8410228e25fb4f559cd75ed1982e..dbb5381f7b3b58ec41f026cd65d592bc1c2871ff 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -79,8 +79,10 @@ static __init void bad_srat(void)
acpi_numa = -1;
for (i = 0; i < MAX_LOCAL_APIC; i++)
apicid_to_node[i] = NUMA_NO_NODE;
- for (i = 0; i < MAX_NUMNODES; i++)
- nodes_add[i].start = nodes[i].end = 0;
+ for (i = 0; i < MAX_NUMNODES; i++) {
+ nodes[i].start = nodes[i].end = 0;
+ nodes_add[i].start = nodes_add[i].end = 0;
+ }
remove_all_active_ranges();
}