Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86 quirk: Fix polarity for IRQ0 pin2 override on SB800 systems
  x86/mrst: Fix apb timer rating when lapic timer is used
  x86: Fix reboot problem on VersaLogic Menlow boards

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 211ca3f7fd16f07a313fc4333b563888765519a4..4ea15ca89b2b1110c4d0f6032d8ddee9256fb0b4 100644 (file)
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -88,6 +88,7 @@ extern int acpi_disabled;
 extern int acpi_pci_disabled;
 extern int acpi_skip_timer_override;
 extern int acpi_use_timer_override;
+extern int acpi_fix_pin2_polarity;
 
 extern u8 acpi_sci_flags;
 extern int acpi_sci_override_gsi;

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index b3a71137983a53b29a9571697ea0b270dec7c186..3e6e2d68f761aedf7938b4d8dd31268aad979891 100644 (file)
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -72,6 +72,7 @@ u8 acpi_sci_flags __initdata;
 int acpi_sci_override_gsi __initdata;
 int acpi_skip_timer_override __initdata;
 int acpi_use_timer_override __initdata;
+int acpi_fix_pin2_polarity __initdata;
 
 #ifdef CONFIG_X86_LOCAL_APIC
 static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
@@ -415,10 +416,15 @@ acpi_parse_int_src_ovr(struct acpi_subtable_header * header,
                return 0;
        }
 
-       if (acpi_skip_timer_override &&
-           intsrc->source_irq == 0 && intsrc->global_irq == 2) {
-               printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n");
-               return 0;
+       if (intsrc->source_irq == 0 && intsrc->global_irq == 2) {
+               if (acpi_skip_timer_override) {
+                       printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n");
+                       return 0;
+               }
+               if (acpi_fix_pin2_polarity && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) {
+                       intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK;
+                       printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n");
+               }
        }
 
        mp_override_legacy_irq(intsrc->source_irq,

diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index 51ef31a89be92848ab65e7b148e6c6bdb0f192ea..51d4e16630669e6b0cf5b83f38140a3aa335e264 100644 (file)
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -284,7 +284,7 @@ static int __init apbt_clockevent_register(void)
        memcpy(&adev->evt, &apbt_clockevent, sizeof(struct clock_event_device));
 
        if (mrst_timer_options == MRST_TIMER_LAPIC_APBT) {
-               apbt_clockevent.rating = APBT_CLOCKEVENT_RATING - 100;
+               adev->evt.rating = APBT_CLOCKEVENT_RATING - 100;
                global_clock_event = &adev->evt;
                printk(KERN_DEBUG "%s clockevent registered as global\n",
                       global_clock_event->name);

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 76b8cd953deed9f8a50d572cdc52b5edb68bc3b7..9efbdcc56425b18ce38224cf7b866c1bf66c5d5a 100644 (file)
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -143,15 +143,10 @@ static void __init ati_bugs(int num, int slot, int func)
 
 static u32 __init ati_sbx00_rev(int num, int slot, int func)
 {
-       u32 old, d;
+       u32 d;
 
-       d = read_pci_config(num, slot, func, 0x70);
-       old = d;
-       d &= ~(1<<8);
-       write_pci_config(num, slot, func, 0x70, d);
        d = read_pci_config(num, slot, func, 0x8);
        d &= 0xff;
-       write_pci_config(num, slot, func, 0x70, old);
 
        return d;
 }
@@ -160,13 +155,16 @@ static void __init ati_bugs_contd(int num, int slot, int func)
 {
        u32 d, rev;
 
-       if (acpi_use_timer_override)
-               return;
-
        rev = ati_sbx00_rev(num, slot, func);
+       if (rev >= 0x40)
+               acpi_fix_pin2_polarity = 1;
+
        if (rev > 0x13)
                return;
 
+       if (acpi_use_timer_override)
+               return;
+
        /* check for IRQ0 interrupt swap */
        d = read_pci_config(num, slot, func, 0x64);
        if (!(d & (1<<14)))

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index fc7aae1e2bc72a9907eee4aa1011fce507091f4a..715037caeb43518054f083454ce7be53ffcafe8b 100644 (file)
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -285,6 +285,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
                        DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
                },
        },
+       {       /* Handle problems with rebooting on VersaLogic Menlow boards */
+               .callback = set_bios_reboot,
+               .ident = "VersaLogic Menlow based board",
+               .matches = {
+                       DMI_MATCH(DMI_BOARD_VENDOR, "VersaLogic Corporation"),
+                       DMI_MATCH(DMI_BOARD_NAME, "VersaLogic Menlow board"),
+               },
+       },
        { }
 };