arch/x86/mach-generic/es7000.c

   1 /*
   2  * APIC driver for the Unisys ES7000 chipset.
   3  */
   4 #define APIC_DEFINITION 1
   5 #include <linux/threads.h>
   6 #include <linux/cpumask.h>
   7 #include <asm/smp.h>
   8 #include <asm/mpspec.h>
   9 #include <asm/genapic.h>
  10 #include <asm/fixmap.h>
  11 #include <asm/apicdef.h>
  12 #include <linux/kernel.h>
  13 #include <linux/string.h>
  14 #include <linux/smp.h>
  15 #include <linux/init.h>
  16 #include <asm/mach-es7000/mach_apicdef.h>
  17 #include <asm/mach-es7000/mach_apic.h>
  18 #include <asm/mach-es7000/mach_ipi.h>
  19 #include <asm/mach-es7000/mach_mpparse.h>
  20 #include <asm/mach-es7000/mach_wakecpu.h>
  21
  22 static int probe_es7000(void)
  23 {
  24         /* probed later in mptable/ACPI hooks */
  25         return 0;
  26 }
  27
  28 extern void es7000_sw_apic(void);
  29 static void __init enable_apic_mode(void)
  30 {
  31         es7000_sw_apic();
  32         return;
  33 }
  34
  35 static __init int mps_oem_check(struct mp_config_table *mpc, char *oem,
  36                 char *productid)
  37 {
  38         if (mpc->mpc_oemptr) {
  39                 struct mp_config_oemtable *oem_table =
  40                         (struct mp_config_oemtable *)mpc->mpc_oemptr;
  41                 if (!strncmp(oem, "UNISYS", 6))
  42                         return parse_unisys_oem((char *)oem_table);
  43         }
  44         return 0;
  45 }
  46
  47 #ifdef CONFIG_ACPI
  48 /* Hook from generic ACPI tables.c */
  49 static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
  50 {
  51         unsigned long oem_addr;
  52         if (!find_unisys_acpi_oem_table(&oem_addr)) {
  53                 if (es7000_check_dsdt())
  54                         return parse_unisys_oem((char *)oem_addr);
  55                 else {
  56                         setup_unisys();
  57                         return 1;
  58                 }
  59         }
  60         return 0;
  61 }
  62 #else
  63 static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
  64 {
  65         return 0;
  66 }
  67 #endif
  68
  69 struct genapic __initdata_refok apic_es7000 = APIC_INIT("es7000", probe_es7000);