src/patches/suse-2.6.27.25/patches.xen/xen3-x2APIC_PATCH_20_of_41_cff73a6ffaed726780b001937d2a42efde553922

   1 From: Suresh Siddha <suresh.b.siddha@intel.com>
   2 Subject: x64, x2apic/intr-remap: introcude self IPI to genapic routines
   3 References: fate #303948 and fate #303984
   4 Patch-Mainline: queued for .28
   5 Commit-ID: cff73a6ffaed726780b001937d2a42efde553922
   6
   7 Signed-off-by: Thomas Renninger <trenn@suse.de>
   8
   9 Introduce self IPI op for genapic.
  10
  11 Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
  12 Cc: akpm@linux-foundation.org
  13 Cc: arjan@linux.intel.com
  14 Cc: andi@firstfloor.org
  15 Cc: ebiederm@xmission.com
  16 Cc: jbarnes@virtuousgeek.org
  17 Cc: steiner@sgi.com
  18 Signed-off-by: Ingo Molnar <mingo@elte.hu>
  19
  20 Automatically created from "patches.arch/x2APIC_PATCH_20_of_41_cff73a6ffaed726780b001937d2a42efde553922" by xen-port-patches.py
  21
  22 Index: head-2008-11-04/arch/x86/kernel/genapic_64-xen.c
  23 ===================================================================
  24 --- head-2008-11-04.orig/arch/x86/kernel/genapic_64-xen.c       2008-11-04 11:55:22.000000000 +0100
  25 +++ head-2008-11-04/arch/x86/kernel/genapic_64-xen.c    2008-11-04 14:40:00.000000000 +0100
  26 @@ -72,18 +72,12 @@ void __init setup_apic_routing(void)
  27
  28  /* Same for both flat and physical. */
  29
  30 -#ifdef CONFIG_XEN
  31 -extern void xen_send_IPI_shortcut(unsigned int shortcut, int vector, unsigned int dest);
  32 -#endif
  33 -
  34 -void send_IPI_self(int vector)
  35 -{
  36  #ifndef CONFIG_XEN
  37 +void apic_send_IPI_self(int vector)
  38 +{
  39         __send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
  40 -#else
  41 -       xen_send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
  42 -#endif
  43  }
  44 +#endif
  45
  46  int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
  47  {
  48 Index: head-2008-11-04/arch/x86/kernel/genapic_xen_64.c
  49 ===================================================================
  50 --- head-2008-11-04.orig/arch/x86/kernel/genapic_xen_64.c       2008-11-04 11:55:22.000000000 +0100
  51 +++ head-2008-11-04/arch/x86/kernel/genapic_xen_64.c    2008-11-04 14:41:17.000000000 +0100
  52 @@ -34,7 +34,8 @@ static inline void __send_IPI_one(unsign
  53         notify_remote_via_irq(irq);
  54  }
  55
  56 -void xen_send_IPI_shortcut(unsigned int shortcut, int vector, unsigned int dest)
  57 +static void xen_send_IPI_shortcut(unsigned int shortcut, int vector,
  58 +                                 unsigned int dest)
  59  {
  60         int cpu;
  61
  62 @@ -116,6 +117,11 @@ static void xen_send_IPI_mask(cpumask_t
  63         local_irq_restore(flags);
  64  }
  65
  66 +static void xen_send_IPI_self(int vector)
  67 +{
  68 +       xen_send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
  69 +}
  70 +
  71  #ifdef CONFIG_XEN_PRIVILEGED_GUEST
  72  static int xen_apic_id_registered(void)
  73  {
  74 @@ -152,6 +158,7 @@ struct genapic apic_xen =  {
  75         .send_IPI_all = xen_send_IPI_all,
  76         .send_IPI_allbutself = xen_send_IPI_allbutself,
  77         .send_IPI_mask = xen_send_IPI_mask,
  78 +       .send_IPI_self = xen_send_IPI_self,
  79         .cpu_mask_to_apicid = xen_cpu_mask_to_apicid,
  80         .phys_pkg_id = phys_pkg_id,
  81  };