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Commit 64ccf2f9 authored by Russ Anderson's avatar Russ Anderson Committed by H. Peter Anvin
Browse files

x86: uv: Add UV watchlist bios call 



Add UV bios calls to allocate and free watchlists.

Signed-off-by: default avatarRuss Anderson <rja@sgi.com>
Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
parent 69a72a0e

arch/x86/include/asm/uv/bios.h

+16 −1
Original line number Diff line number Diff line
@@ -32,7 +32,9 @@ 
enum uv_bios_cmd {

	UV_BIOS_COMMON,

	UV_BIOS_GET_SN_INFO,

	UV_BIOS_FREQ_BASE

	UV_BIOS_FREQ_BASE,

	UV_BIOS_WATCHLIST_ALLOC,

	UV_BIOS_WATCHLIST_FREE

};



/*
@@ -71,6 +73,15 @@ union partition_info_u { 
	};

};



union uv_watchlist_u {

	u64	val;

	struct {

		u64	blade	: 16,

			size	: 32,

			filler	: 16;

	};

};



/*

 * bios calls have 6 parameters

 */
@@ -80,9 +91,13 @@ extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64); 


extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *);

extern s64 uv_bios_freq_base(u64, u64 *);

extern int uv_bios_mq_watchlist_alloc(int, void *, unsigned int,

					unsigned long *);

extern int uv_bios_mq_watchlist_free(int, int);



extern void uv_bios_init(void);



extern unsigned long sn_rtc_cycles_per_second;

extern int uv_type;

extern long sn_partition_id;

extern long sn_coherency_id;

arch/x86/kernel/bios_uv.c

+33 −0
Original line number Diff line number Diff line
@@ -100,6 +100,39 @@ s64 uv_bios_get_sn_info(int fc, int *uvtype, long *partid, long *coher, 
	return ret;

}



int

uv_bios_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,

			   unsigned long *intr_mmr_offset)

{

	union uv_watchlist_u size_blade;

	unsigned long addr;

	u64 watchlist;

	s64 ret;



	addr = (unsigned long)mq;

	size_blade.size = mq_size;

	size_blade.blade = blade;



	/*

	 * bios returns watchlist number or negative error number.

	 */

	ret = (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_ALLOC, addr,

			size_blade.val, (u64)intr_mmr_offset,

			(u64)&watchlist, 0);

	if (ret < BIOS_STATUS_SUCCESS)

		return ret;



	return watchlist;

}

EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_alloc);



int

uv_bios_mq_watchlist_free(int blade, int watchlist_num)

{

	return (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_FREE,

				blade, watchlist_num, 0, 0, 0);

}

EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_free);



s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second)

{