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

[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

arch/ia64/include/asm/sn/sn_sal.h

+45 −0
Original line number Diff line number Diff line
@@ -90,6 +90,8 @@ 
#define  SN_SAL_SET_CPU_NUMBER			   0x02000068



#define  SN_SAL_KERNEL_LAUNCH_EVENT		   0x02000069

#define  SN_SAL_WATCHLIST_ALLOC			   0x02000070

#define  SN_SAL_WATCHLIST_FREE			   0x02000071



/*

 * Service-specific constants
@@ -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);

	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 */