src/patches/suse-2.6.27.25/patches.arch/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 ---
  21  arch/x86/kernel/genapic_64.c             |    2 +-
  22  arch/x86/kernel/genapic_flat_64.c        |    2 ++
  23  include/asm-x86/genapic_64.h             |    2 ++
  24  include/asm-x86/hw_irq.h                 |    2 ++
  25  include/asm-x86/mach-default/mach_apic.h |    1 +
  26  5 files changed, 8 insertions(+), 1 deletion(-)
  27
  28 Index: linux-2.6.26/arch/x86/kernel/genapic_64.c
  29 ===================================================================
  30 --- linux-2.6.26.orig/arch/x86/kernel/genapic_64.c
  31 +++ linux-2.6.26/arch/x86/kernel/genapic_64.c
  32 @@ -61,7 +61,7 @@ void __init setup_apic_routing(void)
  33
  34  /* Same for both flat and physical. */
  35
  36 -void send_IPI_self(int vector)
  37 +void apic_send_IPI_self(int vector)
  38  {
  39         __send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
  40  }
  41 Index: linux-2.6.26/arch/x86/kernel/genapic_flat_64.c
  42 ===================================================================
  43 --- linux-2.6.26.orig/arch/x86/kernel/genapic_flat_64.c
  44 +++ linux-2.6.26/arch/x86/kernel/genapic_flat_64.c
  45 @@ -131,6 +131,7 @@ struct genapic apic_flat =  {
  46         .send_IPI_all = flat_send_IPI_all,
  47         .send_IPI_allbutself = flat_send_IPI_allbutself,
  48         .send_IPI_mask = flat_send_IPI_mask,
  49 +       .send_IPI_self = apic_send_IPI_self,
  50         .cpu_mask_to_apicid = flat_cpu_mask_to_apicid,
  51         .phys_pkg_id = phys_pkg_id,
  52         .read_apic_id = read_xapic_id,
  53 @@ -196,6 +197,7 @@ struct genapic apic_physflat =  {
  54         .send_IPI_all = physflat_send_IPI_all,
  55         .send_IPI_allbutself = physflat_send_IPI_allbutself,
  56         .send_IPI_mask = physflat_send_IPI_mask,
  57 +       .send_IPI_self = apic_send_IPI_self,
  58         .cpu_mask_to_apicid = physflat_cpu_mask_to_apicid,
  59         .phys_pkg_id = phys_pkg_id,
  60         .read_apic_id = read_xapic_id,
  61 Index: linux-2.6.26/include/asm-x86/genapic_64.h
  62 ===================================================================
  63 --- linux-2.6.26.orig/include/asm-x86/genapic_64.h
  64 +++ linux-2.6.26/include/asm-x86/genapic_64.h
  65 @@ -24,6 +24,7 @@ struct genapic {
  66         void (*send_IPI_mask)(cpumask_t mask, int vector);
  67         void (*send_IPI_allbutself)(int vector);
  68         void (*send_IPI_all)(int vector);
  69 +       void (*send_IPI_self)(int vector);
  70         /* */
  71         unsigned int (*cpu_mask_to_apicid)(cpumask_t cpumask);
  72         unsigned int (*phys_pkg_id)(int index_msb);
  73 @@ -36,6 +37,7 @@ extern struct genapic apic_flat;
  74  extern struct genapic apic_physflat;
  75  extern int acpi_madt_oem_check(char *, char *);
  76
  77 +extern void apic_send_IPI_self(int vector);
  78  enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
  79  extern enum uv_system_type get_uv_system_type(void);
  80  extern int is_uv_system(void);
  81 Index: linux-2.6.26/include/asm-x86/hw_irq.h
  82 ===================================================================
  83 --- linux-2.6.26.orig/include/asm-x86/hw_irq.h
  84 +++ linux-2.6.26/include/asm-x86/hw_irq.h
  85 @@ -73,7 +73,9 @@ extern void enable_IO_APIC(void);
  86  #endif
  87
  88  /* IPI functions */
  89 +#ifdef CONFIG_X86_32
  90  extern void send_IPI_self(int vector);
  91 +#endif
  92  extern void send_IPI(int dest, int vector);
  93
  94  /* Statistics */
  95 Index: linux-2.6.26/include/asm-x86/mach-default/mach_apic.h
  96 ===================================================================
  97 --- linux-2.6.26.orig/include/asm-x86/mach-default/mach_apic.h
  98 +++ linux-2.6.26/include/asm-x86/mach-default/mach_apic.h
  99 @@ -31,6 +31,7 @@ static inline cpumask_t target_cpus(void
 100  #define phys_pkg_id    (genapic->phys_pkg_id)
 101  #define vector_allocation_domain    (genapic->vector_allocation_domain)
 102  #define read_apic_id  (genapic->read_apic_id)
 103 +#define send_IPI_self (genapic->send_IPI_self)
 104  extern void setup_apic_routing(void);
 105  #else
 106  #define INT_DELIVERY_MODE dest_LowestPrio