ACPICA: minimal patch to integrate new tables into Linux

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / i386 / kernel / acpi / boot.c

diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index c8f96cff07c61fd4560659da01dc2740f6bb6ee0..9adabc4dba70c2b08f1fc8c89fabce3e13405036 100644 (file)
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -333,7 +333,7 @@ acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end)
 /*
  * Parse Interrupt Source Override for the ACPI SCI
  */
-static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger)
+static void __init acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger)
 {
        if (trigger == 0)       /* compatible SCI trigger is level */
                trigger = 3;
@@ -716,33 +716,26 @@ static int __init acpi_parse_fadt(unsigned long phys, unsigned long size)
                printk(KERN_WARNING PREFIX "Unable to map FADT\n");
                return 0;
        }
-       /* initialize sci_int early for INT_SRC_OVR MADT parsing */
-       acpi_fadt.sci_int = fadt->sci_int;
-
-       /* initialize rev and apic_phys_dest_mode for x86_64 genapic */
-       acpi_fadt.revision = fadt->revision;
-       acpi_fadt.force_apic_physical_destination_mode =
-           fadt->force_apic_physical_destination_mode;
 
 #ifdef CONFIG_X86_PM_TIMER
        /* detect the location of the ACPI PM Timer */
-       if (fadt->revision >= FADT2_REVISION_ID) {
+       if (fadt->header.revision >= FADT2_REVISION_ID) {
                /* FADT rev. 2 */
-               if (fadt->xpm_tmr_blk.address_space_id !=
+               if (fadt->xpm_timer_block.space_id !=
                    ACPI_ADR_SPACE_SYSTEM_IO)
                        return 0;
 
-               pmtmr_ioport = fadt->xpm_tmr_blk.address;
+               pmtmr_ioport = fadt->xpm_timer_block.address;
                /*
                 * "X" fields are optional extensions to the original V1.0
                 * fields, so we must selectively expand V1.0 fields if the
                 * corresponding X field is zero.
                 */
                if (!pmtmr_ioport)
-                       pmtmr_ioport = fadt->V1_pm_tmr_blk;
+                       pmtmr_ioport = fadt->pm_timer_block;
        } else {
                /* FADT rev. 1 */
-               pmtmr_ioport = fadt->V1_pm_tmr_blk;
+               pmtmr_ioport = fadt->pm_timer_block;
        }
        if (pmtmr_ioport)
                printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n",
@@ -1327,3 +1320,25 @@ static int __init setup_acpi_sci(char *s)
        return 0;
 }
 early_param("acpi_sci", setup_acpi_sci);
+
+int __acpi_acquire_global_lock(unsigned int *lock)
+{
+       unsigned int old, new, val;
+       do {
+               old = *lock;
+               new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
+               val = cmpxchg(lock, old, new);
+       } while (unlikely (val != old));
+       return (new < 3) ? -1 : 0;
+}
+
+int __acpi_release_global_lock(unsigned int *lock)
+{
+       unsigned int old, new, val;
+       do {
+               old = *lock;
+               new = old & ~0x3;
+               val = cmpxchg(lock, old, new);
+       } while (unlikely (val != old));
+       return old & 0x1;
+}