Merge branch 'ht-delete-2.6.35' into release
[safe/jmp/linux-2.6] / arch / x86 / kernel / acpi / boot.c
index 8019ecf..b702343 100644 (file)
 #include <linux/module.h>
 #include <linux/dmi.h>
 #include <linux/irq.h>
+#include <linux/slab.h>
 #include <linux/bootmem.h>
 #include <linux/ioport.h>
 #include <linux/pci.h>
 
+#include <asm/pci_x86.h>
 #include <asm/pgtable.h>
 #include <asm/io_apic.h>
 #include <asm/apic.h>
 
 static int __initdata acpi_force = 0;
 u32 acpi_rsdt_forced;
-#ifdef CONFIG_ACPI
-int acpi_disabled = 0;
-#else
-int acpi_disabled = 1;
-#endif
+int acpi_disabled;
 EXPORT_SYMBOL(acpi_disabled);
 
 #ifdef CONFIG_X86_64
 # include <asm/proto.h>
+# include <asm/numa_64.h>
 #endif                         /* X86 */
 
 #define BAD_MADT_ENTRY(entry, end) (                                       \
@@ -64,7 +63,6 @@ EXPORT_SYMBOL(acpi_disabled);
 int acpi_noirq;                                /* skip ACPI IRQ initialization */
 int acpi_pci_disabled;         /* skip ACPI PCI scan and IRQ initialization */
 EXPORT_SYMBOL(acpi_pci_disabled);
-int acpi_ht __initdata = 1;    /* enable HT */
 
 int acpi_lapic;
 int acpi_ioapic;
@@ -122,72 +120,6 @@ void __init __acpi_unmap_table(char *map, unsigned long size)
        early_iounmap(map, size);
 }
 
-#ifdef CONFIG_PCI_MMCONFIG
-
-static int acpi_mcfg_64bit_base_addr __initdata = FALSE;
-
-/* The physical address of the MMCONFIG aperture.  Set from ACPI tables. */
-struct acpi_mcfg_allocation *pci_mmcfg_config;
-int pci_mmcfg_config_num;
-
-static int __init acpi_mcfg_oem_check(struct acpi_table_mcfg *mcfg)
-{
-       if (!strcmp(mcfg->header.oem_id, "SGI"))
-               acpi_mcfg_64bit_base_addr = TRUE;
-
-       return 0;
-}
-
-int __init acpi_parse_mcfg(struct acpi_table_header *header)
-{
-       struct acpi_table_mcfg *mcfg;
-       unsigned long i;
-       int config_size;
-
-       if (!header)
-               return -EINVAL;
-
-       mcfg = (struct acpi_table_mcfg *)header;
-
-       /* how many config structures do we have */
-       pci_mmcfg_config_num = 0;
-       i = header->length - sizeof(struct acpi_table_mcfg);
-       while (i >= sizeof(struct acpi_mcfg_allocation)) {
-               ++pci_mmcfg_config_num;
-               i -= sizeof(struct acpi_mcfg_allocation);
-       };
-       if (pci_mmcfg_config_num == 0) {
-               printk(KERN_ERR PREFIX "MMCONFIG has no entries\n");
-               return -ENODEV;
-       }
-
-       config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config);
-       pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL);
-       if (!pci_mmcfg_config) {
-               printk(KERN_WARNING PREFIX
-                      "No memory for MCFG config tables\n");
-               return -ENOMEM;
-       }
-
-       memcpy(pci_mmcfg_config, &mcfg[1], config_size);
-
-       acpi_mcfg_oem_check(mcfg);
-
-       for (i = 0; i < pci_mmcfg_config_num; ++i) {
-               if ((pci_mmcfg_config[i].address > 0xFFFFFFFF) &&
-                   !acpi_mcfg_64bit_base_addr) {
-                       printk(KERN_ERR PREFIX
-                              "MMCONFIG not in low 4GB of memory\n");
-                       kfree(pci_mmcfg_config);
-                       pci_mmcfg_config_num = 0;
-                       return -ENODEV;
-               }
-       }
-
-       return 0;
-}
-#endif                         /* CONFIG_PCI_MMCONFIG */
-
 #ifdef CONFIG_X86_LOCAL_APIC
 static int __init acpi_parse_madt(struct acpi_table_header *table)
 {
@@ -516,6 +448,12 @@ void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
 int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
 {
        *irq = gsi;
+
+#ifdef CONFIG_X86_IO_APIC
+       if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC)
+               setup_IO_APIC_irq_extra(gsi);
+#endif
+
        return 0;
 }
 
@@ -523,7 +461,7 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
  * success: return IRQ number (>=0)
  * failure: return < 0
  */
-int acpi_register_gsi(struct device *dev, u32 gsi, int triggering, int polarity)
+int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity)
 {
        unsigned int irq;
        unsigned int plat_gsi = gsi;
@@ -533,17 +471,18 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int triggering, int polarity)
         * Make sure all (legacy) PCI IRQs are set as level-triggered.
         */
        if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) {
-               if (triggering == ACPI_LEVEL_SENSITIVE)
+               if (trigger == ACPI_LEVEL_SENSITIVE)
                        eisa_set_level_irq(gsi);
        }
 #endif
 
 #ifdef CONFIG_X86_IO_APIC
        if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) {
-               plat_gsi = mp_register_gsi(dev, gsi, triggering, polarity);
+               plat_gsi = mp_register_gsi(dev, gsi, trigger, polarity);
        }
 #endif
-       acpi_gsi_to_irq(plat_gsi, &irq);
+       irq = plat_gsi;
+
        return irq;
 }
 
@@ -551,6 +490,26 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int triggering, int polarity)
  *  ACPI based hotplug support for CPU
  */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
+#include <acpi/processor.h>
+
+static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
+{
+#ifdef CONFIG_ACPI_NUMA
+       int nid;
+
+       nid = acpi_get_node(handle);
+       if (nid == -1 || !node_online(nid))
+               return;
+#ifdef CONFIG_X86_64
+       apicid_to_node[physid] = nid;
+       numa_set_node(cpu, nid);
+#else /* CONFIG_X86_32 */
+       apicid_2_node[physid] = nid;
+       cpu_to_node_map[cpu] = nid;
+#endif
+
+#endif
+}
 
 static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
 {
@@ -609,7 +568,10 @@ static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
                goto free_new_map;
        }
 
+       acpi_processor_set_pdc(handle);
+
        cpu = cpumask_first(new_map);
+       acpi_map_cpu2node(handle, cpu, physid);
 
        *pcpu = cpu;
        retval = 0;
@@ -694,6 +656,7 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
        }
 
        hpet_address = hpet_tbl->address.address;
+       hpet_blockid = hpet_tbl->sequence;
 
        /*
         * Some broken BIOSes advertise HPET at 0x0. We really do not
@@ -903,112 +866,6 @@ static int __init acpi_parse_madt_lapic_entries(void)
 extern int es7000_plat;
 #endif
 
-static struct {
-       int apic_id;
-       int gsi_base;
-       int gsi_end;
-       DECLARE_BITMAP(pin_programmed, MP_MAX_IOAPIC_PIN + 1);
-} mp_ioapic_routing[MAX_IO_APICS];
-
-int mp_find_ioapic(int gsi)
-{
-       int i = 0;
-
-       /* Find the IOAPIC that manages this GSI. */
-       for (i = 0; i < nr_ioapics; i++) {
-               if ((gsi >= mp_ioapic_routing[i].gsi_base)
-                   && (gsi <= mp_ioapic_routing[i].gsi_end))
-                       return i;
-       }
-
-       printk(KERN_ERR "ERROR: Unable to locate IOAPIC for GSI %d\n", gsi);
-       return -1;
-}
-
-int mp_find_ioapic_pin(int ioapic, int gsi)
-{
-       if (WARN_ON(ioapic == -1))
-               return -1;
-       if (WARN_ON(gsi > mp_ioapic_routing[ioapic].gsi_end))
-               return -1;
-
-       return gsi - mp_ioapic_routing[ioapic].gsi_base;
-}
-
-static u8 __init uniq_ioapic_id(u8 id)
-{
-#ifdef CONFIG_X86_32
-       if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
-           !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
-               return io_apic_get_unique_id(nr_ioapics, id);
-       else
-               return id;
-#else
-       int i;
-       DECLARE_BITMAP(used, 256);
-       bitmap_zero(used, 256);
-       for (i = 0; i < nr_ioapics; i++) {
-               struct mpc_ioapic *ia = &mp_ioapics[i];
-               __set_bit(ia->apicid, used);
-       }
-       if (!test_bit(id, used))
-               return id;
-       return find_first_zero_bit(used, 256);
-#endif
-}
-
-static int bad_ioapic(unsigned long address)
-{
-       if (nr_ioapics >= MAX_IO_APICS) {
-               printk(KERN_ERR "ERROR: Max # of I/O APICs (%d) exceeded "
-                      "(found %d)\n", MAX_IO_APICS, nr_ioapics);
-               panic("Recompile kernel with bigger MAX_IO_APICS!\n");
-       }
-       if (!address) {
-               printk(KERN_ERR "WARNING: Bogus (zero) I/O APIC address"
-                      " found in table, skipping!\n");
-               return 1;
-       }
-       return 0;
-}
-
-void __init mp_register_ioapic(int id, u32 address, u32 gsi_base)
-{
-       int idx = 0;
-
-       if (bad_ioapic(address))
-               return;
-
-       idx = nr_ioapics;
-
-       mp_ioapics[idx].type = MP_IOAPIC;
-       mp_ioapics[idx].flags = MPC_APIC_USABLE;
-       mp_ioapics[idx].apicaddr = address;
-
-       set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
-       mp_ioapics[idx].apicid = uniq_ioapic_id(id);
-#ifdef CONFIG_X86_32
-       mp_ioapics[idx].apicver = io_apic_get_version(idx);
-#else
-       mp_ioapics[idx].apicver = 0;
-#endif
-       /*
-        * Build basic GSI lookup table to facilitate gsi->io_apic lookups
-        * and to prevent reprogramming of IOAPIC pins (PCI GSIs).
-        */
-       mp_ioapic_routing[idx].apic_id = mp_ioapics[idx].apicid;
-       mp_ioapic_routing[idx].gsi_base = gsi_base;
-       mp_ioapic_routing[idx].gsi_end = gsi_base +
-           io_apic_get_redir_entries(idx);
-
-       printk(KERN_INFO "IOAPIC[%d]: apic_id %d, version %d, address 0x%x, "
-              "GSI %d-%d\n", idx, mp_ioapics[idx].apicid,
-              mp_ioapics[idx].apicver, mp_ioapics[idx].apicaddr,
-              mp_ioapic_routing[idx].gsi_base, mp_ioapic_routing[idx].gsi_end);
-
-       nr_ioapics++;
-}
-
 int __init acpi_probe_gsi(void)
 {
        int idx;
@@ -1023,7 +880,7 @@ int __init acpi_probe_gsi(void)
 
        max_gsi = 0;
        for (idx = 0; idx < nr_ioapics; idx++) {
-               gsi = mp_ioapic_routing[idx].gsi_end;
+               gsi = mp_gsi_routing[idx].gsi_end;
 
                if (gsi > max_gsi)
                        max_gsi = gsi;
@@ -1159,7 +1016,7 @@ void __init mp_config_acpi_legacy_irqs(void)
        }
 }
 
-static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int triggering,
+static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger,
                        int polarity)
 {
 #ifdef CONFIG_X86_MPPARSE
@@ -1184,12 +1041,12 @@ static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int triggering,
        /* print the entry should happen on mptable identically */
        mp_irq.type = MP_INTSRC;
        mp_irq.irqtype = mp_INT;
-       mp_irq.irqflag = (triggering == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) |
+       mp_irq.irqflag = (trigger == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) |
                                (polarity == ACPI_ACTIVE_HIGH ? 1 : 3);
        mp_irq.srcbus = number;
        mp_irq.srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3);
        ioapic = mp_find_ioapic(gsi);
-       mp_irq.dstapic = mp_ioapic_routing[ioapic].apic_id;
+       mp_irq.dstapic = mp_ioapics[ioapic].apicid;
        mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi);
 
        save_mp_irq(&mp_irq);
@@ -1197,10 +1054,11 @@ static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int triggering,
        return 0;
 }
 
-int mp_register_gsi(struct device *dev, u32 gsi, int triggering, int polarity)
+int mp_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity)
 {
        int ioapic;
        int ioapic_pin;
+       struct io_apic_irq_attr irq_attr;
 
        if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
                return gsi;
@@ -1224,26 +1082,18 @@ int mp_register_gsi(struct device *dev, u32 gsi, int triggering, int polarity)
 
        if (ioapic_pin > MP_MAX_IOAPIC_PIN) {
                printk(KERN_ERR "Invalid reference to IOAPIC pin "
-                      "%d-%d\n", mp_ioapic_routing[ioapic].apic_id,
+                      "%d-%d\n", mp_ioapics[ioapic].apicid,
                       ioapic_pin);
                return gsi;
        }
-       mp_config_acpi_gsi(dev, gsi, triggering, polarity);
 
-       /*
-        * Avoid pin reprogramming.  PRTs typically include entries
-        * with redundant pin->gsi mappings (but unique PCI devices);
-        * we only program the IOAPIC on the first.
-        */
-       if (test_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed)) {
-               pr_debug("Pin %d-%d already programmed\n",
-                        mp_ioapic_routing[ioapic].apic_id, ioapic_pin);
-               return gsi;
-       }
-       set_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed);
-       io_apic_set_pci_routing(dev, ioapic, ioapic_pin, gsi,
-                               triggering == ACPI_EDGE_SENSITIVE ? 0 : 1,
-                               polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
+       if (enable_update_mptable)
+               mp_config_acpi_gsi(dev, gsi, trigger, polarity);
+
+       set_io_apic_irq_attr(&irq_attr, ioapic, ioapic_pin,
+                            trigger == ACPI_EDGE_SENSITIVE ? 0 : 1,
+                            polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
+       io_apic_set_pci_routing(dev, gsi, &irq_attr);
 
        return gsi;
 }
@@ -1262,9 +1112,8 @@ static int __init acpi_parse_madt_ioapic_entries(void)
         * If MPS is present, it will handle them,
         * otherwise the system will stay in PIC mode
         */
-       if (acpi_disabled || acpi_noirq) {
+       if (acpi_disabled || acpi_noirq)
                return -ENODEV;
-       }
 
        if (!cpu_has_apic)
                return -ENODEV;
@@ -1306,7 +1155,7 @@ static int __init acpi_parse_madt_ioapic_entries(void)
        if (!acpi_sci_override_gsi)
                acpi_sci_ioapic_setup(acpi_gbl_FADT.sci_interrupt, 0, 0);
 
-       /* Fill in identity legacy mapings where no override */
+       /* Fill in identity legacy mappings where no override */
        mp_config_acpi_legacy_irqs();
 
        count =
@@ -1368,9 +1217,6 @@ static void __init acpi_process_madt(void)
                if (!error) {
                        acpi_lapic = 1;
 
-#ifdef CONFIG_X86_BIGSMP
-                       generic_bigsmp_probe();
-#endif
                        /*
                         * Parse MADT IO-APIC entries
                         */
@@ -1380,8 +1226,6 @@ static void __init acpi_process_madt(void)
                                acpi_ioapic = 1;
 
                                smp_found_config = 1;
-                               if (apic->setup_apic_routing)
-                                       apic->setup_apic_routing();
                        }
                }
                if (error == -EINVAL) {
@@ -1452,23 +1296,6 @@ static int __init dmi_disable_acpi(const struct dmi_system_id *d)
 }
 
 /*
- * Limit ACPI to CPU enumeration for HT
- */
-static int __init force_acpi_ht(const struct dmi_system_id *d)
-{
-       if (!acpi_force) {
-               printk(KERN_NOTICE "%s detected: force use of acpi=ht\n",
-                      d->ident);
-               disable_acpi();
-               acpi_ht = 1;
-       } else {
-               printk(KERN_NOTICE
-                      "Warning: acpi=force overrules DMI blacklist: acpi=ht\n");
-       }
-       return 0;
-}
-
-/*
  * Force ignoring BIOS IRQ0 pin2 override
  */
 static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
@@ -1504,98 +1331,6 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
         },
 
        /*
-        * Boxes that need acpi=ht
-        */
-       {
-        .callback = force_acpi_ht,
-        .ident = "FSC Primergy T850",
-        .matches = {
-                    DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
-                    DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "HP VISUALIZE NT Workstation",
-        .matches = {
-                    DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-                    DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "Compaq Workstation W8000",
-        .matches = {
-                    DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
-                    DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "ASUS P4B266",
-        .matches = {
-                    DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-                    DMI_MATCH(DMI_BOARD_NAME, "P4B266"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "ASUS P2B-DS",
-        .matches = {
-                    DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-                    DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "ASUS CUR-DLS",
-        .matches = {
-                    DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-                    DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "ABIT i440BX-W83977",
-        .matches = {
-                    DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"),
-                    DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "IBM Bladecenter",
-        .matches = {
-                    DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-                    DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "IBM eServer xSeries 360",
-        .matches = {
-                    DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-                    DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "IBM eserver xSeries 330",
-        .matches = {
-                    DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-                    DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"),
-                    },
-        },
-       {
-        .callback = force_acpi_ht,
-        .ident = "IBM eserver xSeries 440",
-        .matches = {
-                    DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-                    DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"),
-                    },
-        },
-
-       /*
         * Boxes that need ACPI PCI IRQ routing disabled
         */
        {
@@ -1720,32 +1455,24 @@ static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
  *     if acpi_blacklisted() acpi_disabled = 1;
  *     acpi_irq_model=...
  *     ...
- *
- * return value: (currently ignored)
- *     0: success
- *     !0: failure
  */
 
-int __init acpi_boot_table_init(void)
+void __init acpi_boot_table_init(void)
 {
-       int error;
-
        dmi_check_system(acpi_dmi_table);
 
        /*
         * If acpi_disabled, bail out
-        * One exception: acpi=ht continues far enough to enumerate LAPICs
         */
-       if (acpi_disabled && !acpi_ht)
-               return 1;
+       if (acpi_disabled)
+               return
 
        /*
         * Initialize the ACPI boot-time table parser.
         */
-       error = acpi_table_init();
-       if (error) {
+       if (acpi_table_init()) {
                disable_acpi();
-               return error;
+               return;
        }
 
        acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf);
@@ -1753,27 +1480,23 @@ int __init acpi_boot_table_init(void)
        /*
         * blacklist may disable ACPI entirely
         */
-       error = acpi_blacklisted();
-       if (error) {
+       if (acpi_blacklisted()) {
                if (acpi_force) {
                        printk(KERN_WARNING PREFIX "acpi=force override\n");
                } else {
                        printk(KERN_WARNING PREFIX "Disabling ACPI support\n");
                        disable_acpi();
-                       return error;
+                       return;
                }
        }
-
-       return 0;
 }
 
 int __init early_acpi_boot_init(void)
 {
        /*
         * If acpi_disabled, bail out
-        * One exception: acpi=ht continues far enough to enumerate LAPICs
         */
-       if (acpi_disabled && !acpi_ht)
+       if (acpi_disabled)
                return 1;
 
        /*
@@ -1791,9 +1514,8 @@ int __init acpi_boot_init(void)
 
        /*
         * If acpi_disabled, bail out
-        * One exception: acpi=ht continues far enough to enumerate LAPICs
         */
-       if (acpi_disabled && !acpi_ht)
+       if (acpi_disabled)
                return 1;
 
        acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf);
@@ -1810,6 +1532,9 @@ int __init acpi_boot_init(void)
 
        acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet);
 
+       if (!acpi_noirq)
+               x86_init.pci.init = pci_acpi_init;
+
        return 0;
 }
 
@@ -1825,19 +1550,12 @@ static int __init parse_acpi(char *arg)
        /* acpi=force to over-ride black-list */
        else if (strcmp(arg, "force") == 0) {
                acpi_force = 1;
-               acpi_ht = 1;
                acpi_disabled = 0;
        }
        /* acpi=strict disables out-of-spec workarounds */
        else if (strcmp(arg, "strict") == 0) {
                acpi_strict = 1;
        }
-       /* Limit ACPI just to boot-time to enable HT */
-       else if (strcmp(arg, "ht") == 0) {
-               if (!acpi_force)
-                       disable_acpi();
-               acpi_ht = 1;
-       }
        /* acpi=rsdt use RSDT instead of XSDT */
        else if (strcmp(arg, "rsdt") == 0) {
                acpi_rsdt_forced = 1;