Commit 7576f684 authored by Russ Anderson's avatar Russ Anderson Committed by Tony Luck

[IA64] Add UV watchlist support.

This is used by SGI xp drivers (drivers/misc/sgi-xp).
Signed-off-by: default avatarRuss Anderson <rja@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent 9ac8d3fb
...@@ -90,6 +90,8 @@ ...@@ -90,6 +90,8 @@
#define SN_SAL_SET_CPU_NUMBER 0x02000068 #define SN_SAL_SET_CPU_NUMBER 0x02000068
#define SN_SAL_KERNEL_LAUNCH_EVENT 0x02000069 #define SN_SAL_KERNEL_LAUNCH_EVENT 0x02000069
#define SN_SAL_WATCHLIST_ALLOC 0x02000070
#define SN_SAL_WATCHLIST_FREE 0x02000071
/* /*
* Service-specific constants * Service-specific constants
...@@ -1185,4 +1187,47 @@ ia64_sn_kernel_launch_event(void) ...@@ -1185,4 +1187,47 @@ ia64_sn_kernel_launch_event(void)
SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0); SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0);
return rv.status; return rv.status;
} }
union sn_watchlist_u {
u64 val;
struct {
u64 blade : 16,
size : 32,
filler : 16;
};
};
static inline int
sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,
unsigned long *intr_mmr_offset)
{
struct ia64_sal_retval rv;
unsigned long addr;
union sn_watchlist_u size_blade;
int watchlist;
addr = (unsigned long)mq;
size_blade.size = mq_size;
size_blade.blade = blade;
/*
* bios returns watchlist number or negative error number.
*/
ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr,
size_blade.val, (u64)intr_mmr_offset,
(u64)&watchlist, 0, 0, 0);
if (rv.status < 0)
return rv.status;
return watchlist;
}
static inline int
sn_mq_watchlist_free(int blade, int watchlist_num)
{
struct ia64_sal_retval rv;
ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade,
watchlist_num, 0, 0, 0, 0, 0);
return rv.status;
}
#endif /* _ASM_IA64_SN_SN_SAL_H */ #endif /* _ASM_IA64_SN_SN_SAL_H */
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