Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / arch / x86 / kernel / acpi / boot.c

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 71232b941b6c9c6409fd14e9479f3d1625eeaeb0..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;
@@ -198,6 +199,11 @@ static void __cpuinit acpi_register_lapic(int id, u8 enabled)
 {
        unsigned int ver = 0;
 
+       if (id >= (MAX_LOCAL_APIC-1)) {
+               printk(KERN_INFO PREFIX "skipped apicid that is too big\n");
+               return;
+       }
+
        if (!enabled) {
                ++disabled_cpus;
                return;
@@ -410,10 +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,
@@ -504,6 +515,7 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
 
        return 0;
 }
+EXPORT_SYMBOL_GPL(acpi_gsi_to_irq);
 
 int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
 {
@@ -847,18 +859,6 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table)
  * returns 0 on success, < 0 on error
  */
 
-static void __init acpi_register_lapic_address(unsigned long address)
-{
-       mp_lapic_addr = address;
-
-       set_fixmap_nocache(FIX_APIC_BASE, address);
-       if (boot_cpu_physical_apicid == -1U) {
-               boot_cpu_physical_apicid  = read_apic_id();
-               apic_version[boot_cpu_physical_apicid] =
-                        GET_APIC_VERSION(apic_read(APIC_LVR));
-       }
-}
-
 static int __init early_acpi_parse_madt_lapic_addr_ovr(void)
 {
        int count;
@@ -880,7 +880,7 @@ static int __init early_acpi_parse_madt_lapic_addr_ovr(void)
                return count;
        }
 
-       acpi_register_lapic_address(acpi_lapic_addr);
+       register_lapic_address(acpi_lapic_addr);
 
        return count;
 }
@@ -907,16 +907,16 @@ static int __init acpi_parse_madt_lapic_entries(void)
                return count;
        }
 
-       acpi_register_lapic_address(acpi_lapic_addr);
+       register_lapic_address(acpi_lapic_addr);
 
        count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
-                                     acpi_parse_sapic, MAX_APICS);
+                                     acpi_parse_sapic, MAX_LOCAL_APIC);
 
        if (!count) {
                x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC,
-                                               acpi_parse_x2apic, MAX_APICS);
+                                       acpi_parse_x2apic, MAX_LOCAL_APIC);
                count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC,
-                                             acpi_parse_lapic, MAX_APICS);
+                                       acpi_parse_lapic, MAX_LOCAL_APIC);
        }
        if (!count && !x2count) {
                printk(KERN_ERR PREFIX "No LAPIC entries present\n");
@@ -949,32 +949,6 @@ static int __init acpi_parse_madt_lapic_entries(void)
 extern int es7000_plat;
 #endif
 
-static void assign_to_mp_irq(struct mpc_intsrc *m,
-                                   struct mpc_intsrc *mp_irq)
-{
-       memcpy(mp_irq, m, sizeof(struct mpc_intsrc));
-}
-
-static int mp_irq_cmp(struct mpc_intsrc *mp_irq,
-                               struct mpc_intsrc *m)
-{
-       return memcmp(mp_irq, m, sizeof(struct mpc_intsrc));
-}
-
-static void save_mp_irq(struct mpc_intsrc *m)
-{
-       int i;
-
-       for (i = 0; i < mp_irq_entries; i++) {
-               if (!mp_irq_cmp(&mp_irqs[i], m))
-                       return;
-       }
-
-       assign_to_mp_irq(m, &mp_irqs[mp_irq_entries]);
-       if (++mp_irq_entries == MAX_IRQ_SOURCES)
-               panic("Max # of irq sources exceeded!!\n");
-}
-
 void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi)
 {
        int ioapic;
@@ -1005,7 +979,7 @@ void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi)
        mp_irq.dstapic = mp_ioapics[ioapic].apicid; /* APIC ID */
        mp_irq.dstirq = pin;    /* INTIN# */
 
-       save_mp_irq(&mp_irq);
+       mp_save_irq(&mp_irq);
 
        isa_irq_to_gsi[bus_irq] = gsi;
 }
@@ -1080,7 +1054,7 @@ void __init mp_config_acpi_legacy_irqs(void)
                mp_irq.srcbusirq = i; /* Identity mapped */
                mp_irq.dstirq = pin;
 
-               save_mp_irq(&mp_irq);
+               mp_save_irq(&mp_irq);
        }
 }
 
@@ -1117,7 +1091,7 @@ static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger,
        mp_irq.dstapic = mp_ioapics[ioapic].apicid;
        mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi);
 
-       save_mp_irq(&mp_irq);
+       mp_save_irq(&mp_irq);
 #endif
        return 0;
 }