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 d12fb97a533774f01385b4fb34c1d0e96e1ec44e..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 bus_irq, 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;
@@ -353,13 +353,13 @@ static void acpi_sci_ioapic_setup(u32 bus_irq, u32 gsi, u16 polarity, u16 trigge
         * If GSI is < 16, this will update its flags,
         * else it will create a new mp_irqs[] entry.
         */
-       mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
+       mp_override_legacy_irq(gsi, polarity, trigger, gsi);
 
        /*
         * stash over-ride to indicate we've been here
         * and for later update of acpi_fadt
         */
-       acpi_sci_override_gsi = bus_irq;
+       acpi_sci_override_gsi = gsi;
        return;
 }
 
@@ -377,7 +377,7 @@ acpi_parse_int_src_ovr(acpi_table_entry_header * header,
        acpi_table_print_madt_entry(header);
 
        if (intsrc->bus_irq == acpi_fadt.sci_int) {
-               acpi_sci_ioapic_setup(intsrc->bus_irq, intsrc->global_irq,
+               acpi_sci_ioapic_setup(intsrc->global_irq,
                                      intsrc->flags.polarity,
                                      intsrc->flags.trigger);
                return 0;
@@ -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",
@@ -880,7 +873,7 @@ static int __init acpi_parse_madt_ioapic_entries(void)
         * pretend we got one so we can set the SCI flags.
         */
        if (!acpi_sci_override_gsi)
-               acpi_sci_ioapic_setup(acpi_fadt.sci_int, acpi_fadt.sci_int, 0, 0);
+               acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0);
 
        /* Fill in identity legacy mapings where no override */
        mp_config_acpi_legacy_irqs();
@@ -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;
+}