src/patches/suse-2.6.27.31/patches.fixes/ia64_uv_watchlist.diff

   1 From: Bernhard Walle <bwalle@suse.de>
   2 Subject: Add UV watchlist support
   3 References: bnc#442455
   4
   5 Add UV watchlist support.
   6
   7 This is used by SGI xp drivers (drivers/misc/sgi-xp).
   8
   9 Signed-off-by: Russ Anderson <rja@sgi.com>
  10
  11 ---
  12
  13  arch/ia64/include/asm/sn/sn_sal.h |   45 ++++++++++++++++++++++++++++++++++++++
  14  1 file changed, 45 insertions(+)
  15
  16 Index: linux/arch/ia64/include/asm/sn/sn_sal.h
  17 ===================================================================
  18 --- linux.orig/arch/ia64/include/asm/sn/sn_sal.h        2008-11-05 09:21:48.690243174 -0600
  19 +++ linux/arch/ia64/include/asm/sn/sn_sal.h     2008-11-05 09:22:01.847928152 -0600
  20 @@ -90,6 +90,8 @@
  21  #define  SN_SAL_SET_CPU_NUMBER                    0x02000068
  22
  23  #define  SN_SAL_KERNEL_LAUNCH_EVENT               0x02000069
  24 +#define  SN_SAL_WATCHLIST_ALLOC                           0x02000070
  25 +#define  SN_SAL_WATCHLIST_FREE                    0x02000071
  26
  27  /*
  28   * Service-specific constants
  29 @@ -1183,6 +1185,49 @@ ia64_sn_kernel_launch_event(void)
  30  {
  31         struct ia64_sal_retval rv;
  32         SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0);
  33 +       return rv.status;
  34 +}
  35 +
  36 +union sn_watchlist_u {
  37 +       u64     val;
  38 +       struct {
  39 +               u64     blade   : 16,
  40 +                       size    : 32,
  41 +                       filler  : 16;
  42 +       };
  43 +};
  44 +
  45 +static inline int
  46 +sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,
  47 +                               unsigned long *intr_mmr_offset)
  48 +{
  49 +       struct ia64_sal_retval rv;
  50 +       unsigned long addr;
  51 +       union sn_watchlist_u size_blade;
  52 +       int watchlist;
  53 +
  54 +       addr = (unsigned long)mq;
  55 +       size_blade.size = mq_size;
  56 +       size_blade.blade = blade;
  57 +
  58 +       /*
  59 +        * bios returns watchlist number or negative error number.
  60 +        */
  61 +       ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr,
  62 +                       size_blade.val, (u64)intr_mmr_offset,
  63 +                       (u64)&watchlist, 0, 0, 0);
  64 +       if (rv.status < 0)
  65 +               return rv.status;
  66 +
  67 +       return watchlist;
  68 +}
  69 +
  70 +static inline int
  71 +sn_mq_watchlist_free(int blade, int watchlist_num)
  72 +{
  73 +       struct ia64_sal_retval rv;
  74 +       ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade,
  75 +                       watchlist_num, 0, 0, 0, 0, 0);
  76         return rv.status;
  77  }
  78  #endif /* _ASM_IA64_SN_SN_SAL_H */