[deliverable/linux.git] / arch / mips / include / asm / sn / addrs.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
 * Copyright (C) 1999, 2000 by Ralf Baechle
 */
#ifndef _ASM_SN_ADDRS_H
#define _ASM_SN_ADDRS_H


#ifndef __ASSEMBLY__
#include <linux/smp.h>
#include <linux/types.h>
#endif /* !__ASSEMBLY__ */

#include <asm/addrspace.h>
#include <asm/sn/kldir.h>

#if defined(CONFIG_SGI_IP27)
#include <asm/sn/sn0/addrs.h>
#elif defined(CONFIG_SGI_IP35)
#include <asm/sn/sn1/addrs.h>
#endif


#ifndef __ASSEMBLY__

#define PS_UINT_CAST		(unsigned long)
#define UINT64_CAST		(unsigned long)

#define HUBREG_CAST		(volatile hubreg_t *)

#else /* __ASSEMBLY__ */

#define PS_UINT_CAST
#define UINT64_CAST
#define HUBREG_CAST

#endif /* __ASSEMBLY__ */


#define NASID_GET_META(_n)	((_n) >> NASID_LOCAL_BITS)
#ifdef CONFIG_SGI_IP27
#define NASID_GET_LOCAL(_n)	((_n) & 0xf)
#endif
#define NASID_MAKE(_m, _l)	(((_m) << NASID_LOCAL_BITS) | (_l))

#define NODE_ADDRSPACE_MASK	(NODE_ADDRSPACE_SIZE - 1)
#define TO_NODE_ADDRSPACE(_pa)	(UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK)

#define CHANGE_ADDR_NASID(_pa, _nasid)	\
		((UINT64_CAST(_pa) & ~NASID_MASK) | \
		 (UINT64_CAST(_nasid) <<  NASID_SHFT))


/*
 * The following macros are used to index to the beginning of a specific
 * node's address space.
 */

#define NODE_OFFSET(_n)		(UINT64_CAST (_n) << NODE_SIZE_BITS)

#define NODE_CAC_BASE(_n)	(CAC_BASE   + NODE_OFFSET(_n))
#define NODE_HSPEC_BASE(_n)	(HSPEC_BASE + NODE_OFFSET(_n))
#define NODE_IO_BASE(_n)	(IO_BASE    + NODE_OFFSET(_n))
#define NODE_MSPEC_BASE(_n)	(MSPEC_BASE + NODE_OFFSET(_n))
#define NODE_UNCAC_BASE(_n)	(UNCAC_BASE + NODE_OFFSET(_n))

#define TO_NODE(_n, _x)		(NODE_OFFSET(_n)     | ((_x)		   ))
#define TO_NODE_CAC(_n, _x)	(NODE_CAC_BASE(_n)   | ((_x) & TO_PHYS_MASK))
#define TO_NODE_UNCAC(_n, _x)	(NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
#define TO_NODE_MSPEC(_n, _x)	(NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
#define TO_NODE_HSPEC(_n, _x)	(NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))


#define RAW_NODE_SWIN_BASE(nasid, widget)				\
	(NODE_IO_BASE(nasid) + (UINT64_CAST(widget) << SWIN_SIZE_BITS))

#define WIDGETID_GET(addr)	((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))

/*
 * The following definitions pertain to the IO special address
 * space.  They define the location of the big and little windows
 * of any given node.
 */

#define SWIN_SIZE_BITS		24
#define SWIN_SIZE		(UINT64_CAST 1 << 24)
#define SWIN_SIZEMASK		(SWIN_SIZE - 1)
#define SWIN_WIDGET_MASK	0xF

/*
 * Convert smallwindow address to xtalk address.
 *
 * 'addr' can be physical or virtual address, but will be converted
 * to Xtalk address in the range 0 -> SWINZ_SIZEMASK
 */
#define SWIN_WIDGETADDR(addr)	((addr) & SWIN_SIZEMASK)
#define SWIN_WIDGETNUM(addr)	(((addr)  >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
/*
 * Verify if addr belongs to small window address on node with "nasid"
 *
 *
 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical
 * address
 *
 *
 */
#define NODE_SWIN_ADDR(nasid, addr)	\
		(((addr) >= NODE_SWIN_BASE(nasid, 0))  && \
		 ((addr) <  (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
		 ))

/*
 * The following define the major position-independent aliases used
 * in SN.
 *	UALIAS -- 256MB in size, reads in the UALIAS result in
 *			uncached references to the memory of the reader's node.
 *	CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped
 *			depending on which CPU does the access to provide
 *			all CPUs with unique uncached memory at low addresses.
 *	LBOOT  -- 256MB in size, reads in the LBOOT area result in
 *			uncached references to the local hub's boot prom and
 *			other directory-bus connected devices.
 *	IALIAS -- 8MB in size, reads in the IALIAS result in uncached
 *			references to the local hub's registers.
 */

#define UALIAS_BASE		HSPEC_BASE
#define UALIAS_SIZE		0x10000000	/* 256 Megabytes */
#define UALIAS_LIMIT		(UALIAS_BASE + UALIAS_SIZE)

/*
 * The bottom of ualias space is flipped depending on whether you're
 * processor 0 or 1 within a node.
 */
#ifdef CONFIG_SGI_IP27
#define UALIAS_FLIP_BASE	UALIAS_BASE
#define UALIAS_FLIP_SIZE	0x20000
#define UALIAS_FLIP_BIT		0x10000
#define UALIAS_FLIP_ADDR(_x)	(cputoslice(smp_processor_id()) ? \
				 (_x) ^ UALIAS_FLIP_BIT : (_x))

#define LBOOT_BASE		(HSPEC_BASE + 0x10000000)
#define LBOOT_SIZE		0x10000000
#define LBOOT_LIMIT		(LBOOT_BASE + LBOOT_SIZE)
#define LBOOT_STRIDE		0		/* IP27 has only one CPU PROM */

#endif

#define HUB_REGISTER_WIDGET	1
#define IALIAS_BASE		NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
#define IALIAS_SIZE		0x800000	/* 8 Megabytes */
#define IS_IALIAS(_a)		(((_a) >= IALIAS_BASE) &&		\
				 ((_a) < (IALIAS_BASE + IALIAS_SIZE)))

/*
 * Macro for referring to Hub's RBOOT space
 */

#ifdef CONFIG_SGI_IP27
#define RBOOT_SIZE		0x10000000	/* 256 Megabytes */
#define NODE_RBOOT_BASE(_n)	(NODE_HSPEC_BASE(_n) + 0x30000000)
#define NODE_RBOOT_LIMIT(_n)	(NODE_RBOOT_BASE(_n) + RBOOT_SIZE)

#endif

/*
 * Macros for referring the Hub's back door space
 *
 *   These macros correctly process addresses in any node's space.
 *   WARNING: They won't work in assembler.
 *
 *   BDDIR_ENTRY_LO returns the address of the low double-word of the dir
 *		    entry corresponding to a physical (Cac or Uncac) address.
 *   BDDIR_ENTRY_HI returns the address of the high double-word of the entry.
 *   BDPRT_ENTRY    returns the address of the double-word protection entry
 *		    corresponding to the page containing the physical address.
 *   BDPRT_ENTRY_S  Stores the value into the protection entry.
 *   BDPRT_ENTRY_L  Load the value from the protection entry.
 *   BDECC_ENTRY    returns the address of the ECC byte corresponding to a
 *		    double-word at a specified physical address.
 *   BDECC_ENTRY_H  returns the address of the two ECC bytes corresponding to a
 *		    quad-word at a specified physical address.
 */
#define NODE_BDOOR_BASE(_n)	(NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))

#define NODE_BDECC_BASE(_n)	(NODE_BDOOR_BASE(_n))
#define NODE_BDDIR_BASE(_n)	(NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4))
#ifdef CONFIG_SGI_IP27
#define BDDIR_ENTRY_LO(_pa)	((HSPEC_BASE +				      \
				  NODE_ADDRSPACE_SIZE * 3 / 4 +		      \
				  0x200)				    | \
				 UINT64_CAST(_pa)	 & NASID_MASK	    | \
				 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK  | \
				 UINT64_CAST(_pa) >> 3 & 0x1f << 4)

#define BDDIR_ENTRY_HI(_pa)	((HSPEC_BASE +				      \
				  NODE_ADDRSPACE_SIZE * 3 / 4 +		      \
				  0x208)				    | \
				 UINT64_CAST(_pa)	 & NASID_MASK	    | \
				 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK  | \
				 UINT64_CAST(_pa) >> 3 & 0x1f << 4)

#define BDPRT_ENTRY(_pa, _rgn)	((HSPEC_BASE +				      \
				  NODE_ADDRSPACE_SIZE * 3 / 4)		    | \
				 UINT64_CAST(_pa)	 & NASID_MASK	    | \
				 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK  | \
				 (_rgn) << 3)
#define BDPRT_ENTRY_ADDR(_pa, _rgn) (BDPRT_ENTRY((_pa), (_rgn)))
#define BDPRT_ENTRY_S(_pa, _rgn, _val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn))=(_val))
#define BDPRT_ENTRY_L(_pa, _rgn)	(*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn)))

#define BDECC_ENTRY(_pa)	((HSPEC_BASE +				      \
				  NODE_ADDRSPACE_SIZE / 2)		    | \
				 UINT64_CAST(_pa)	 & NASID_MASK	    | \
				 UINT64_CAST(_pa) >> 2 & BDECC_UPPER_MASK  | \
				 UINT64_CAST(_pa) >> 3 & 3)

/*
 * Macro to convert a back door directory or protection address into the
 *   raw physical address of the associated cache line or protection page.
 */
#define BDADDR_IS_DIR(_ba)	((UINT64_CAST  (_ba) & 0x200) != 0)
#define BDADDR_IS_PRT(_ba)	((UINT64_CAST  (_ba) & 0x200) == 0)

#define BDDIR_TO_MEM(_ba)	(UINT64_CAST (_ba) & NASID_MASK		   | \
				 (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2  | \
				 (UINT64_CAST(_ba) & 0x1f << 4) << 3)

#define BDPRT_TO_MEM(_ba)	(UINT64_CAST (_ba) & NASID_MASK	    | \
				 (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2)

#define BDECC_TO_MEM(_ba)	(UINT64_CAST (_ba) & NASID_MASK	    | \
				 (UINT64_CAST(_ba) & BDECC_UPPER_MASK)<<2  | \
				 (UINT64_CAST(_ba) & 3) << 3)
#endif /* CONFIG_SGI_IP27 */


/*
 * The following macros produce the correct base virtual address for
 * the hub registers.  The LOCAL_HUB_* macros produce the appropriate
 * address for the local registers.  The REMOTE_HUB_* macro produce
 * the address for the specified hub's registers.  The intent is
 * that the appropriate PI, MD, NI, or II register would be substituted
 * for _x.
 */

/*
 * WARNING:
 *	When certain Hub chip workaround are defined, it's not sufficient
 *	to dereference the *_HUB_ADDR() macros.	 You should instead use
 *	HUB_L() and HUB_S() if you must deal with pointers to hub registers.
 *	Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
 *	They're always safe.
 */
#define LOCAL_HUB_ADDR(_x)	(HUBREG_CAST (IALIAS_BASE + (_x)))
#define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) +	\
					      0x800000 + (_x)))
#ifdef CONFIG_SGI_IP27
#define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) +	\
					      0x800000 + (_x)))
#endif /* CONFIG_SGI_IP27 */

#ifndef __ASSEMBLY__

#define HUB_L(_a)			*(_a)
#define HUB_S(_a, _d)			*(_a) = (_d)

#define LOCAL_HUB_L(_r)			HUB_L(LOCAL_HUB_ADDR(_r))
#define LOCAL_HUB_S(_r, _d)		HUB_S(LOCAL_HUB_ADDR(_r), (_d))
#define REMOTE_HUB_L(_n, _r)		HUB_L(REMOTE_HUB_ADDR((_n), (_r)))
#define REMOTE_HUB_S(_n, _r, _d)	HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d))
#define REMOTE_HUB_PI_L(_n, _sn, _r)	HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)))
#define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d))

#endif /* !__ASSEMBLY__ */

/*
 * The following macros are used to get to a hub/bridge register, given
 * the base of the register space.
 */
#define HUB_REG_PTR(_base, _off)	\
	(HUBREG_CAST((__psunsigned_t)(_base) + (__psunsigned_t)(_off)))

#define HUB_REG_PTR_L(_base, _off)	\
	HUB_L(HUB_REG_PTR((_base), (_off)))

#define HUB_REG_PTR_S(_base, _off, _data)	\
	HUB_S(HUB_REG_PTR((_base), (_off)), (_data))

/*
 * Software structure locations -- permanently fixed
 *    See diagram in kldir.h
 */

#define PHYS_RAMBASE		0x0
#define K0_RAMBASE		PHYS_TO_K0(PHYS_RAMBASE)

#define EX_HANDLER_OFFSET(slice) ((slice) << 16)
#define EX_HANDLER_ADDR(nasid, slice)					\
	PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice))
#define EX_HANDLER_SIZE		0x0400

#define EX_FRAME_OFFSET(slice)	((slice) << 16 | 0x400)
#define EX_FRAME_ADDR(nasid, slice)					\
	PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice))
#define EX_FRAME_SIZE		0x0c00

#define ARCS_SPB_OFFSET		0x1000
#define ARCS_SPB_ADDR(nasid)						\
	PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET)
#define ARCS_SPB_SIZE		0x0400

#define KLDIR_OFFSET		0x2000
#define KLDIR_ADDR(nasid)						\
	TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
#define KLDIR_SIZE		0x0400


/*
 * Software structure locations -- indirected through KLDIR
 *    See diagram in kldir.h
 *
 * Important:	All low memory structures must only be accessed
 *		uncached, except for the symmon stacks.
 */

#define KLI_LAUNCH		0		/* Dir. entries */
#define KLI_KLCONFIG		1
#define KLI_NMI			2
#define KLI_GDA			3
#define KLI_FREEMEM		4
#define KLI_SYMMON_STK		5
#define KLI_PI_ERROR		6
#define KLI_KERN_VARS		7
#define KLI_KERN_XP		8
#define KLI_KERN_PARTID		9

#ifndef __ASSEMBLY__

#define KLD_BASE(nasid)		((kldir_ent_t *) KLDIR_ADDR(nasid))
#define KLD_LAUNCH(nasid)	(KLD_BASE(nasid) + KLI_LAUNCH)
#define KLD_NMI(nasid)		(KLD_BASE(nasid) + KLI_NMI)
#define KLD_KLCONFIG(nasid)	(KLD_BASE(nasid) + KLI_KLCONFIG)
#define KLD_PI_ERROR(nasid)	(KLD_BASE(nasid) + KLI_PI_ERROR)
#define KLD_GDA(nasid)		(KLD_BASE(nasid) + KLI_GDA)
#define KLD_SYMMON_STK(nasid)	(KLD_BASE(nasid) + KLI_SYMMON_STK)
#define KLD_FREEMEM(nasid)	(KLD_BASE(nasid) + KLI_FREEMEM)
#define KLD_KERN_VARS(nasid)	(KLD_BASE(nasid) + KLI_KERN_VARS)
#define KLD_KERN_XP(nasid)	(KLD_BASE(nasid) + KLI_KERN_XP)
#define KLD_KERN_PARTID(nasid)	(KLD_BASE(nasid) + KLI_KERN_PARTID)

#define LAUNCH_OFFSET(nasid, slice)					\
	(KLD_LAUNCH(nasid)->offset +					\
	 KLD_LAUNCH(nasid)->stride * (slice))
#define LAUNCH_ADDR(nasid, slice)					\
	TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
#define LAUNCH_SIZE(nasid)	KLD_LAUNCH(nasid)->size

#define SN_NMI_OFFSET(nasid, slice)					\
	(KLD_NMI(nasid)->offset +					\
	 KLD_NMI(nasid)->stride * (slice))
#define NMI_ADDR(nasid, slice)						\
	TO_NODE_UNCAC((nasid), SN_NMI_OFFSET(nasid, slice))
#define NMI_SIZE(nasid) KLD_NMI(nasid)->size

#define KLCONFIG_OFFSET(nasid)	KLD_KLCONFIG(nasid)->offset
#define KLCONFIG_ADDR(nasid)						\
	TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid))
#define KLCONFIG_SIZE(nasid)	KLD_KLCONFIG(nasid)->size

#define GDA_ADDR(nasid)		KLD_GDA(nasid)->pointer
#define GDA_SIZE(nasid)		KLD_GDA(nasid)->size

#define SYMMON_STK_OFFSET(nasid, slice)					\
	(KLD_SYMMON_STK(nasid)->offset +				\
	 KLD_SYMMON_STK(nasid)->stride * (slice))
#define SYMMON_STK_STRIDE(nasid)	KLD_SYMMON_STK(nasid)->stride

#define SYMMON_STK_ADDR(nasid, slice)					\
	TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice))

#define SYMMON_STK_SIZE(nasid)	KLD_SYMMON_STK(nasid)->stride

#define SYMMON_STK_END(nasid)	(SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)

/* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a
 * relocatable program
 */
#define UNIX_DEBUG_LOADADDR	0x300000
#define SYMMON_LOADADDR(nasid)						\
	TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000))

#define FREEMEM_OFFSET(nasid)	KLD_FREEMEM(nasid)->offset
#define FREEMEM_ADDR(nasid)	SYMMON_STK_END(nasid)
/*
 * XXX
 * Fix this. FREEMEM_ADDR should be aware of if symmon is loaded.
 * Also, it should take into account what prom thinks to be a safe
 * address
	PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid))
 */
#define FREEMEM_SIZE(nasid)	KLD_FREEMEM(nasid)->size

#define PI_ERROR_OFFSET(nasid)	KLD_PI_ERROR(nasid)->offset
#define PI_ERROR_ADDR(nasid)						\
	TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid))
#define PI_ERROR_SIZE(nasid)	KLD_PI_ERROR(nasid)->size

#define NODE_OFFSET_TO_K0(_nasid, _off)					\
	PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE)
#define NODE_OFFSET_TO_K1(_nasid, _off)					\
	TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE)
#define K0_TO_NODE_OFFSET(_k0addr)					\
	((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK)

#define KERN_VARS_ADDR(nasid)	KLD_KERN_VARS(nasid)->pointer
#define KERN_VARS_SIZE(nasid)	KLD_KERN_VARS(nasid)->size

#define KERN_XP_ADDR(nasid)	KLD_KERN_XP(nasid)->pointer
#define KERN_XP_SIZE(nasid)	KLD_KERN_XP(nasid)->size

#define GPDA_ADDR(nasid)	TO_NODE_CAC(nasid, GPDA_OFFSET)

#endif /* !__ASSEMBLY__ */


#endif /* _ASM_SN_ADDRS_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* This file is subject to the terms and conditions of the GNU General Public
	3	* License. See the file "COPYING" in the main directory of this archive
	4	* for more details.
	5	*
	6	* Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
	7	* Copyright (C) 1999, 2000 by Ralf Baechle
	8	*/
	9	#ifndef _ASM_SN_ADDRS_H
	10	#define _ASM_SN_ADDRS_H
	11
1da177e4 LT	12
1da177e4 LT	13	#ifndef __ASSEMBLY__
631330f5	14	#include <linux/smp.h>
1da177e4 LT	15	#include <linux/types.h>
	16	#endif /* !__ASSEMBLY__ */
	17
	18	#include <asm/addrspace.h>
	19	#include <asm/sn/kldir.h>
	20
	21	#if defined(CONFIG_SGI_IP27)
	22	#include <asm/sn/sn0/addrs.h>
	23	#elif defined(CONFIG_SGI_IP35)
	24	#include <asm/sn/sn1/addrs.h>
	25	#endif
	26
	27
	28	#ifndef __ASSEMBLY__
	29
1da177e4 LT	30	#define PS_UINT_CAST (unsigned long)
1da177e4 LT	31	#define UINT64_CAST (unsigned long)
1da177e4 LT	32
	33	#define HUBREG_CAST (volatile hubreg_t *)
	34
	35	#else /* __ASSEMBLY__ */
	36
	37	#define PS_UINT_CAST
	38	#define UINT64_CAST
	39	#define HUBREG_CAST
	40
	41	#endif /* __ASSEMBLY__ */
	42
	43
	44	#define NASID_GET_META(_n) ((_n) >> NASID_LOCAL_BITS)
	45	#ifdef CONFIG_SGI_IP27
	46	#define NASID_GET_LOCAL(_n) ((_n) & 0xf)
	47	#endif
	48	#define NASID_MAKE(_m, _l) (((_m) << NASID_LOCAL_BITS) \| (_l))
	49
	50	#define NODE_ADDRSPACE_MASK (NODE_ADDRSPACE_SIZE - 1)
	51	#define TO_NODE_ADDRSPACE(_pa) (UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK)
	52
	53	#define CHANGE_ADDR_NASID(_pa, _nasid) \
49a89efb	54	((UINT64_CAST(_pa) & ~NASID_MASK) \| \
1da177e4 LT	55	(UINT64_CAST(_nasid) << NASID_SHFT))
	56
	57
	58	/*
	59	* The following macros are used to index to the beginning of a specific
	60	* node's address space.
	61	*/
	62
	63	#define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS)
	64
	65	#define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n))
	66	#define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n))
	67	#define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n))
	68	#define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n))
	69	#define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n))
	70
	71	#define TO_NODE(_n, _x) (NODE_OFFSET(_n) \| ((_x) ))
	72	#define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) \| ((_x) & TO_PHYS_MASK))
	73	#define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) \| ((_x) & TO_PHYS_MASK))
	74	#define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) \| ((_x) & TO_PHYS_MASK))
	75	#define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) \| ((_x) & TO_PHYS_MASK))
	76
	77
	78	#define RAW_NODE_SWIN_BASE(nasid, widget) \
49a89efb	79	(NODE_IO_BASE(nasid) + (UINT64_CAST(widget) << SWIN_SIZE_BITS))
1da177e4 LT	80
	81	#define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))
	82
	83	/*
	84	* The following definitions pertain to the IO special address
	85	* space. They define the location of the big and little windows
	86	* of any given node.
	87	*/
	88
	89	#define SWIN_SIZE_BITS 24
	90	#define SWIN_SIZE (UINT64_CAST 1 << 24)
70342287 RB	91	#define SWIN_SIZEMASK (SWIN_SIZE - 1)
70342287 RB	92	#define SWIN_WIDGET_MASK 0xF
1da177e4 LT	93
	94	/*
	95	* Convert smallwindow address to xtalk address.
	96	*
	97	* 'addr' can be physical or virtual address, but will be converted
	98	* to Xtalk address in the range 0 -> SWINZ_SIZEMASK
	99	*/
70342287 RB	100	#define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK)
70342287 RB	101	#define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
1da177e4 LT	102	/*
	103	* Verify if addr belongs to small window address on node with "nasid"
	104	*
	105	*
	106	* NOTE: "addr" is expected to be XKPHYS address, and NOT physical
	107	* address
	108	*
	109	*
	110	*/
70342287	111	#define NODE_SWIN_ADDR(nasid, addr) \
1da177e4 LT	112	(((addr) >= NODE_SWIN_BASE(nasid, 0)) && \
	113	((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
	114	))
	115
	116	/*
	117	* The following define the major position-independent aliases used
	118	* in SN.
	119	* UALIAS -- 256MB in size, reads in the UALIAS result in
	120	* uncached references to the memory of the reader's node.
	121	* CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped
	122	* depending on which CPU does the access to provide
	123	* all CPUs with unique uncached memory at low addresses.
	124	* LBOOT -- 256MB in size, reads in the LBOOT area result in
	125	* uncached references to the local hub's boot prom and
	126	* other directory-bus connected devices.
	127	* IALIAS -- 8MB in size, reads in the IALIAS result in uncached
	128	* references to the local hub's registers.
	129	*/
	130
	131	#define UALIAS_BASE HSPEC_BASE
	132	#define UALIAS_SIZE 0x10000000 /* 256 Megabytes */
	133	#define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE)
	134
	135	/*
	136	* The bottom of ualias space is flipped depending on whether you're
	137	* processor 0 or 1 within a node.
	138	*/
	139	#ifdef CONFIG_SGI_IP27
	140	#define UALIAS_FLIP_BASE UALIAS_BASE
	141	#define UALIAS_FLIP_SIZE 0x20000
	142	#define UALIAS_FLIP_BIT 0x10000
	143	#define UALIAS_FLIP_ADDR(_x) (cputoslice(smp_processor_id()) ? \
	144	(_x) ^ UALIAS_FLIP_BIT : (_x))
	145
	146	#define LBOOT_BASE (HSPEC_BASE + 0x10000000)
	147	#define LBOOT_SIZE 0x10000000
	148	#define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE)
	149	#define LBOOT_STRIDE 0 /* IP27 has only one CPU PROM */
	150
	151	#endif
	152
70342287	153	#define HUB_REGISTER_WIDGET 1
1da177e4 LT	154	#define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
	155	#define IALIAS_SIZE 0x800000 /* 8 Megabytes */
	156	#define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \
	157	((_a) < (IALIAS_BASE + IALIAS_SIZE)))
	158
	159	/*
	160	* Macro for referring to Hub's RBOOT space
	161	*/
	162
	163	#ifdef CONFIG_SGI_IP27
	164	#define RBOOT_SIZE 0x10000000 /* 256 Megabytes */
	165	#define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000)
	166	#define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE)
	167
	168	#endif
	169
	170	/*
	171	* Macros for referring the Hub's back door space
	172	*
	173	* These macros correctly process addresses in any node's space.
	174	* WARNING: They won't work in assembler.
	175	*
	176	* BDDIR_ENTRY_LO returns the address of the low double-word of the dir
70342287	177	* entry corresponding to a physical (Cac or Uncac) address.
1da177e4 LT	178	* BDDIR_ENTRY_HI returns the address of the high double-word of the entry.
1da177e4 LT	179	* BDPRT_ENTRY returns the address of the double-word protection entry
70342287	180	* corresponding to the page containing the physical address.
1da177e4 LT	181	* BDPRT_ENTRY_S Stores the value into the protection entry.
	182	* BDPRT_ENTRY_L Load the value from the protection entry.
	183	* BDECC_ENTRY returns the address of the ECC byte corresponding to a
70342287	184	* double-word at a specified physical address.
1da177e4	185	* BDECC_ENTRY_H returns the address of the two ECC bytes corresponding to a
70342287	186	* quad-word at a specified physical address.
1da177e4 LT	187	*/
	188	#define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))
	189
	190	#define NODE_BDECC_BASE(_n) (NODE_BDOOR_BASE(_n))
	191	#define NODE_BDDIR_BASE(_n) (NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4))
	192	#ifdef CONFIG_SGI_IP27
	193	#define BDDIR_ENTRY_LO(_pa) ((HSPEC_BASE + \
	194	NODE_ADDRSPACE_SIZE * 3 / 4 + \
	195	0x200) \| \
49a89efb RB	196	UINT64_CAST(_pa) & NASID_MASK \| \
	197	UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK \| \
	198	UINT64_CAST(_pa) >> 3 & 0x1f << 4)
1da177e4 LT	199
	200	#define BDDIR_ENTRY_HI(_pa) ((HSPEC_BASE + \
	201	NODE_ADDRSPACE_SIZE * 3 / 4 + \
	202	0x208) \| \
49a89efb RB	203	UINT64_CAST(_pa) & NASID_MASK \| \
	204	UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK \| \
	205	UINT64_CAST(_pa) >> 3 & 0x1f << 4)
1da177e4 LT	206
	207	#define BDPRT_ENTRY(_pa, _rgn) ((HSPEC_BASE + \
	208	NODE_ADDRSPACE_SIZE * 3 / 4) \| \
49a89efb RB	209	UINT64_CAST(_pa) & NASID_MASK \| \
49a89efb RB	210	UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK \| \
1da177e4	211	(_rgn) << 3)
21a151d8 RB	212	#define BDPRT_ENTRY_ADDR(_pa, _rgn) (BDPRT_ENTRY((_pa), (_rgn)))
	213	#define BDPRT_ENTRY_S(_pa, _rgn, _val) ((__psunsigned_t )BDPRT_ENTRY((_pa), (_rgn))=(_val))
	214	#define BDPRT_ENTRY_L(_pa, _rgn) ((__psunsigned_t )BDPRT_ENTRY((_pa), (_rgn)))
1da177e4 LT	215
	216	#define BDECC_ENTRY(_pa) ((HSPEC_BASE + \
	217	NODE_ADDRSPACE_SIZE / 2) \| \
49a89efb RB	218	UINT64_CAST(_pa) & NASID_MASK \| \
	219	UINT64_CAST(_pa) >> 2 & BDECC_UPPER_MASK \| \
	220	UINT64_CAST(_pa) >> 3 & 3)
1da177e4 LT	221
	222	/*
	223	* Macro to convert a back door directory or protection address into the
	224	* raw physical address of the associated cache line or protection page.
	225	*/
	226	#define BDADDR_IS_DIR(_ba) ((UINT64_CAST (_ba) & 0x200) != 0)
	227	#define BDADDR_IS_PRT(_ba) ((UINT64_CAST (_ba) & 0x200) == 0)
	228
70342287	229	#define BDDIR_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK \| \
49a89efb RB	230	(UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2 \| \
49a89efb RB	231	(UINT64_CAST(_ba) & 0x1f << 4) << 3)
1da177e4	232
70342287	233	#define BDPRT_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK \| \
49a89efb	234	(UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2)
1da177e4	235
49a89efb RB	236	#define BDECC_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK \| \
	237	(UINT64_CAST(_ba) & BDECC_UPPER_MASK)<<2 \| \
	238	(UINT64_CAST(_ba) & 3) << 3)
1da177e4 LT	239	#endif /* CONFIG_SGI_IP27 */
	240
	241
	242	/*
	243	* The following macros produce the correct base virtual address for
	244	* the hub registers. The LOCAL_HUB_* macros produce the appropriate
	245	* address for the local registers. The REMOTE_HUB_* macro produce
	246	* the address for the specified hub's registers. The intent is
	247	* that the appropriate PI, MD, NI, or II register would be substituted
	248	* for _x.
	249	*/
	250
1da177e4 LT	251	/*
	252	* WARNING:
	253	* When certain Hub chip workaround are defined, it's not sufficient
70342287	254	* to dereference the *_HUB_ADDR() macros. You should instead use
1da177e4 LT	255	* HUB_L() and HUB_S() if you must deal with pointers to hub registers.
	256	* Otherwise, the recommended approach is to use _HUB_L() and _HUB_S().
	257	* They're always safe.
	258	*/
	259	#define LOCAL_HUB_ADDR(_x) (HUBREG_CAST (IALIAS_BASE + (_x)))
70342287	260	#define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
1da177e4 LT	261	0x800000 + (_x)))
1da177e4 LT	262	#ifdef CONFIG_SGI_IP27
70342287	263	#define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
1da177e4 LT	264	0x800000 + (_x)))
	265	#endif /* CONFIG_SGI_IP27 */
	266
	267	#ifndef __ASSEMBLY__
	268
	269	#define HUB_L(_a) *(_a)
70342287	270	#define HUB_S(_a, _d) *(_a) = (_d)
1da177e4 LT	271
	272	#define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r))
	273	#define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d))
	274	#define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r)))
	275	#define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d))
	276	#define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)))
	277	#define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d))
	278
	279	#endif /* !__ASSEMBLY__ */
	280
	281	/*
	282	* The following macros are used to get to a hub/bridge register, given
	283	* the base of the register space.
	284	*/
	285	#define HUB_REG_PTR(_base, _off) \
49a89efb	286	(HUBREG_CAST((__psunsigned_t)(_base) + (__psunsigned_t)(_off)))
1da177e4 LT	287
	288	#define HUB_REG_PTR_L(_base, _off) \
	289	HUB_L(HUB_REG_PTR((_base), (_off)))
	290
	291	#define HUB_REG_PTR_S(_base, _off, _data) \
	292	HUB_S(HUB_REG_PTR((_base), (_off)), (_data))
	293
	294	/*
	295	* Software structure locations -- permanently fixed
	296	* See diagram in kldir.h
	297	*/
	298
	299	#define PHYS_RAMBASE 0x0
	300	#define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE)
	301
	302	#define EX_HANDLER_OFFSET(slice) ((slice) << 16)
	303	#define EX_HANDLER_ADDR(nasid, slice) \
	304	PHYS_TO_K0(NODE_OFFSET(nasid) \| EX_HANDLER_OFFSET(slice))
	305	#define EX_HANDLER_SIZE 0x0400
	306
	307	#define EX_FRAME_OFFSET(slice) ((slice) << 16 \| 0x400)
	308	#define EX_FRAME_ADDR(nasid, slice) \
	309	PHYS_TO_K0(NODE_OFFSET(nasid) \| EX_FRAME_OFFSET(slice))
	310	#define EX_FRAME_SIZE 0x0c00
	311
	312	#define ARCS_SPB_OFFSET 0x1000
	313	#define ARCS_SPB_ADDR(nasid) \
	314	PHYS_TO_K0(NODE_OFFSET(nasid) \| ARCS_SPB_OFFSET)
	315	#define ARCS_SPB_SIZE 0x0400
	316
1da177e4 LT	317	#define KLDIR_OFFSET 0x2000
	318	#define KLDIR_ADDR(nasid) \
	319	TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
	320	#define KLDIR_SIZE 0x0400
	321
	322
	323	/*
	324	* Software structure locations -- indirected through KLDIR
	325	* See diagram in kldir.h
	326	*
	327	* Important: All low memory structures must only be accessed
	328	* uncached, except for the symmon stacks.
	329	*/
	330
	331	#define KLI_LAUNCH 0 /* Dir. entries */
	332	#define KLI_KLCONFIG 1
70342287	333	#define KLI_NMI 2
1da177e4 LT	334	#define KLI_GDA 3
1da177e4 LT	335	#define KLI_FREEMEM 4
70342287	336	#define KLI_SYMMON_STK 5
1da177e4 LT	337	#define KLI_PI_ERROR 6
1da177e4 LT	338	#define KLI_KERN_VARS 7
70342287 RB	339	#define KLI_KERN_XP 8
70342287 RB	340	#define KLI_KERN_PARTID 9
1da177e4 LT	341
	342	#ifndef __ASSEMBLY__
	343
	344	#define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid))
	345	#define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH)
	346	#define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI)
	347	#define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG)
	348	#define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR)
	349	#define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA)
	350	#define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK)
	351	#define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM)
	352	#define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS)
70342287 RB	353	#define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP)
70342287 RB	354	#define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID)
1da177e4 LT	355
	356	#define LAUNCH_OFFSET(nasid, slice) \
	357	(KLD_LAUNCH(nasid)->offset + \
	358	KLD_LAUNCH(nasid)->stride * (slice))
	359	#define LAUNCH_ADDR(nasid, slice) \
	360	TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
	361	#define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size
	362
1699e5c9	363	#define SN_NMI_OFFSET(nasid, slice) \
1da177e4 LT	364	(KLD_NMI(nasid)->offset + \
	365	KLD_NMI(nasid)->stride * (slice))
	366	#define NMI_ADDR(nasid, slice) \
1699e5c9	367	TO_NODE_UNCAC((nasid), SN_NMI_OFFSET(nasid, slice))
70342287	368	#define NMI_SIZE(nasid) KLD_NMI(nasid)->size
1da177e4 LT	369
	370	#define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset
	371	#define KLCONFIG_ADDR(nasid) \
	372	TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid))
	373	#define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size
	374
	375	#define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer
	376	#define GDA_SIZE(nasid) KLD_GDA(nasid)->size
	377
	378	#define SYMMON_STK_OFFSET(nasid, slice) \
	379	(KLD_SYMMON_STK(nasid)->offset + \
	380	KLD_SYMMON_STK(nasid)->stride * (slice))
	381	#define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride
	382
	383	#define SYMMON_STK_ADDR(nasid, slice) \
	384	TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice))
	385
	386	#define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride
	387
	388	#define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)
	389
	390	/* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a
	391	* relocatable program
	392	*/
70342287 RB	393	#define UNIX_DEBUG_LOADADDR 0x300000
70342287 RB	394	#define SYMMON_LOADADDR(nasid) \
1da177e4 LT	395	TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000))
	396
	397	#define FREEMEM_OFFSET(nasid) KLD_FREEMEM(nasid)->offset
	398	#define FREEMEM_ADDR(nasid) SYMMON_STK_END(nasid)
	399	/*
	400	* XXX
	401	* Fix this. FREEMEM_ADDR should be aware of if symmon is loaded.
	402	* Also, it should take into account what prom thinks to be a safe
	403	* address
	404	PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid))
	405	*/
	406	#define FREEMEM_SIZE(nasid) KLD_FREEMEM(nasid)->size
	407
	408	#define PI_ERROR_OFFSET(nasid) KLD_PI_ERROR(nasid)->offset
	409	#define PI_ERROR_ADDR(nasid) \
	410	TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid))
	411	#define PI_ERROR_SIZE(nasid) KLD_PI_ERROR(nasid)->size
	412
	413	#define NODE_OFFSET_TO_K0(_nasid, _off) \
	414	PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) \| CAC_BASE)
	415	#define NODE_OFFSET_TO_K1(_nasid, _off) \
	416	TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) \| UNCAC_BASE)
	417	#define K0_TO_NODE_OFFSET(_k0addr) \
	418	((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK)
	419
	420	#define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer
	421	#define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size
	422
70342287 RB	423	#define KERN_XP_ADDR(nasid) KLD_KERN_XP(nasid)->pointer
70342287 RB	424	#define KERN_XP_SIZE(nasid) KLD_KERN_XP(nasid)->size
1da177e4 LT	425
	426	#define GPDA_ADDR(nasid) TO_NODE_CAC(nasid, GPDA_OFFSET)
	427
	428	#endif /* !__ASSEMBLY__ */
	429
	430
	431	#endif /* _ASM_SN_ADDRS_H */