1. 根目录:
2. arch
3. mips
4. include
5. asm
6. sn
7. sn0
8. 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.
 *
 * Derived from IRIX <sys/SN/SN0/addrs.h>, revision 1.126.
 *
 * Copyright (C) 1992 - 1997, 1999 Silicon Graphics, Inc.
 * Copyright (C) 1999 by Ralf Baechle
 */
#ifndef _ASM_SN_SN0_ADDRS_H
#define _ASM_SN_SN0_ADDRS_H


/*
 * SN0 (on a T5) Address map
 *
 * This file contains a set of definitions and macros which are used
 * to reference into the major address spaces (CAC, HSPEC, IO, MSPEC,
 * and UNCAC) used by the SN0 architecture.  It also contains addresses
 * for "major" statically locatable PROM/Kernel data structures, such as
 * the partition table, the configuration data structure, etc.
 * We make an implicit assumption that the processor using this file
 * follows the R10K's provisions for specifying uncached attributes;
 * should this change, the base registers may very well become processor-
 * dependent.
 *
 * For more information on the address spaces, see the "Local Resources"
 * chapter of the Hub specification.
 *
 * NOTE: This header file is included both by C and by assembler source
 *	 files.	 Please bracket any language-dependent definitions
 *	 appropriately.
 */

/*
 * Some of the macros here need to be casted to appropriate types when used
 * from C.  They definitely must not be casted from assembly language so we
 * use some new ANSI preprocessor stuff to paste these on where needed.
 */

/*
 * The following couple of definitions will eventually need to be variables,
 * since the amount of address space assigned to each node depends on
 * whether the system is running in N-mode (more nodes with less memory)
 * or M-mode (fewer nodes with more memory).  We expect that it will
 * be a while before we need to make this decision dynamically, though,
 * so for now we just use defines bracketed by an ifdef.
 */

#ifdef CONFIG_SGI_SN_N_MODE

#define NODE_SIZE_BITS		31
#define BWIN_SIZE_BITS		28

#define NASID_BITS		9
#define NASID_BITMASK		(0x1ffLL)
#define NASID_SHFT		31
#define NASID_META_BITS		5
#define NASID_LOCAL_BITS	4

#define BDDIR_UPPER_MASK	(UINT64_CAST 0x7ffff << 10)
#define BDECC_UPPER_MASK	(UINT64_CAST 0x3ffffff << 3)

#else /* !defined(CONFIG_SGI_SN_N_MODE), assume that M-mode is desired */

#define NODE_SIZE_BITS		32
#define BWIN_SIZE_BITS		29

#define NASID_BITMASK		(0xffLL)
#define NASID_BITS		8
#define NASID_SHFT		32
#define NASID_META_BITS		4
#define NASID_LOCAL_BITS	4

#define BDDIR_UPPER_MASK	(UINT64_CAST 0xfffff << 10)
#define BDECC_UPPER_MASK	(UINT64_CAST 0x7ffffff << 3)

#endif /* !defined(CONFIG_SGI_SN_N_MODE) */

#define NODE_ADDRSPACE_SIZE	(UINT64_CAST 1 << NODE_SIZE_BITS)

#define NASID_MASK		(UINT64_CAST NASID_BITMASK << NASID_SHFT)
#define NASID_GET(_pa)		(int) ((UINT64_CAST (_pa) >>		\
					NASID_SHFT) & NASID_BITMASK)

#if !defined(__ASSEMBLY__)

#define NODE_SWIN_BASE(nasid, widget)					\
	((widget == 0) ? NODE_BWIN_BASE((nasid), SWIN0_BIGWIN)		\
	: RAW_NODE_SWIN_BASE(nasid, widget))
#else /* __ASSEMBLY__ */
#define NODE_SWIN_BASE(nasid, widget) \
     (NODE_IO_BASE(nasid) + (UINT64_CAST(widget) << SWIN_SIZE_BITS))
#endif /* __ASSEMBLY__ */

/*
 * 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 BWIN_INDEX_BITS		3
#define BWIN_SIZE		(UINT64_CAST 1 << BWIN_SIZE_BITS)
#define BWIN_SIZEMASK		(BWIN_SIZE - 1)
#define BWIN_WIDGET_MASK	0x7
#define NODE_BWIN_BASE0(nasid)	(NODE_IO_BASE(nasid) + BWIN_SIZE)
#define NODE_BWIN_BASE(nasid, bigwin)	(NODE_BWIN_BASE0(nasid) +	\
			(UINT64_CAST(bigwin) << BWIN_SIZE_BITS))

#define BWIN_WIDGETADDR(addr)	((addr) & BWIN_SIZEMASK)
#define BWIN_WINDOWNUM(addr)	(((addr) >> BWIN_SIZE_BITS) & BWIN_WIDGET_MASK)
/*
 * Verify if addr belongs to large window address of node with "nasid"
 *
 *
 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical
 * address
 *
 *
 */

#define NODE_BWIN_ADDR(nasid, addr)	\
		(((addr) >= NODE_BWIN_BASE0(nasid)) && \
		 ((addr) < (NODE_BWIN_BASE(nasid, HUB_NUM_BIG_WINDOW) + \
				BWIN_SIZE)))

/*
 * The following define the major position-independent aliases used
 * in SN0.
 *	CALIAS -- Varies in size, points to the first n bytes of memory
 *			on the reader's node.
 */

#define CALIAS_BASE		CAC_BASE



#define BRIDGE_REG_PTR(_base, _off)	((volatile bridgereg_t *) \
	((__psunsigned_t)(_base) + (__psunsigned_t)(_off)))

#define SN0_WIDGET_BASE(_nasid, _wid)	(NODE_SWIN_BASE((_nasid), (_wid)))

/* Turn on sable logging for the processors whose bits are set. */
#define SABLE_LOG_TRIGGER(_map)

#ifndef __ASSEMBLY__
#define KERN_NMI_ADDR(nasid, slice)					\
		    TO_NODE_UNCAC((nasid), IP27_NMI_KREGS_OFFSET +	\
				  (IP27_NMI_KREGS_CPU_SIZE * (slice)))
#endif /* !__ASSEMBLY__ */

#ifdef PROM

#define MISC_PROM_BASE		PHYS_TO_K0(0x01300000)
#define MISC_PROM_SIZE		0x200000

#define DIAG_BASE		PHYS_TO_K0(0x01500000)
#define DIAG_SIZE		0x300000

#define ROUTE_BASE		PHYS_TO_K0(0x01800000)
#define ROUTE_SIZE		0x200000

#define IP27PROM_FLASH_HDR	PHYS_TO_K0(0x01300000)
#define IP27PROM_FLASH_DATA	PHYS_TO_K0(0x01301000)
#define IP27PROM_CORP_MAX	32
#define IP27PROM_CORP		PHYS_TO_K0(0x01800000)
#define IP27PROM_CORP_SIZE	0x10000
#define IP27PROM_CORP_STK	PHYS_TO_K0(0x01810000)
#define IP27PROM_CORP_STKSIZE	0x2000
#define IP27PROM_DECOMP_BUF	PHYS_TO_K0(0x01900000)
#define IP27PROM_DECOMP_SIZE	0xfff00

#define IP27PROM_BASE		PHYS_TO_K0(0x01a00000)
#define IP27PROM_BASE_MAPPED	(UNCAC_BASE | 0x1fc00000)
#define IP27PROM_SIZE_MAX	0x100000

#define IP27PROM_PCFG		PHYS_TO_K0(0x01b00000)
#define IP27PROM_PCFG_SIZE	0xd0000
#define IP27PROM_ERRDMP		PHYS_TO_K1(0x01bd0000)
#define IP27PROM_ERRDMP_SIZE	0xf000

#define IP27PROM_INIT_START	PHYS_TO_K1(0x01bd0000)
#define IP27PROM_CONSOLE	PHYS_TO_K1(0x01bdf000)
#define IP27PROM_CONSOLE_SIZE	0x200
#define IP27PROM_NETUART	PHYS_TO_K1(0x01bdf200)
#define IP27PROM_NETUART_SIZE	0x100
#define IP27PROM_UNUSED1	PHYS_TO_K1(0x01bdf300)
#define IP27PROM_UNUSED1_SIZE	0x500
#define IP27PROM_ELSC_BASE_A	PHYS_TO_K0(0x01bdf800)
#define IP27PROM_ELSC_BASE_B	PHYS_TO_K0(0x01bdfc00)
#define IP27PROM_STACK_A	PHYS_TO_K0(0x01be0000)
#define IP27PROM_STACK_B	PHYS_TO_K0(0x01bf0000)
#define IP27PROM_STACK_SHFT	16
#define IP27PROM_STACK_SIZE	(1 << IP27PROM_STACK_SHFT)
#define IP27PROM_INIT_END	PHYS_TO_K0(0x01c00000)

#define SLAVESTACK_BASE		PHYS_TO_K0(0x01580000)
#define SLAVESTACK_SIZE		0x40000

#define ENETBUFS_BASE		PHYS_TO_K0(0x01f80000)
#define ENETBUFS_SIZE		0x20000

#define IO6PROM_BASE		PHYS_TO_K0(0x01c00000)
#define IO6PROM_SIZE		0x400000
#define IO6PROM_BASE_MAPPED	(UNCAC_BASE | 0x11c00000)
#define IO6DPROM_BASE		PHYS_TO_K0(0x01c00000)
#define IO6DPROM_SIZE		0x200000

#define NODEBUGUNIX_ADDR	PHYS_TO_K0(0x00019000)
#define DEBUGUNIX_ADDR		PHYS_TO_K0(0x00100000)

#define IP27PROM_INT_LAUNCH	10	/* and 11 */
#define IP27PROM_INT_NETUART	12	/* through 17 */

#endif /* PROM */

/*
 * needed by symmon so it needs to be outside #if PROM
 */
#define IP27PROM_ELSC_SHFT	10
#define IP27PROM_ELSC_SIZE	(1 << IP27PROM_ELSC_SHFT)

/*
 * This address is used by IO6PROM to build MemoryDescriptors of
 * free memory. This address is important since unix gets loaded
 * at this address, and this memory has to be FREE if unix is to
 * be loaded.
 */

#define FREEMEM_BASE		PHYS_TO_K0(0x2000000)

#define IO6PROM_STACK_SHFT	14	/* stack per cpu */
#define IO6PROM_STACK_SIZE	(1 << IO6PROM_STACK_SHFT)

/*
 * IP27 PROM vectors
 */

#define IP27PROM_ENTRY		PHYS_TO_COMPATK1(0x1fc00000)
#define IP27PROM_RESTART	PHYS_TO_COMPATK1(0x1fc00008)
#define IP27PROM_SLAVELOOP	PHYS_TO_COMPATK1(0x1fc00010)
#define IP27PROM_PODMODE	PHYS_TO_COMPATK1(0x1fc00018)
#define IP27PROM_IOC3UARTPOD	PHYS_TO_COMPATK1(0x1fc00020)
#define IP27PROM_FLASHLEDS	PHYS_TO_COMPATK1(0x1fc00028)
#define IP27PROM_REPOD		PHYS_TO_COMPATK1(0x1fc00030)
#define IP27PROM_LAUNCHSLAVE	PHYS_TO_COMPATK1(0x1fc00038)
#define IP27PROM_WAITSLAVE	PHYS_TO_COMPATK1(0x1fc00040)
#define IP27PROM_POLLSLAVE	PHYS_TO_COMPATK1(0x1fc00048)

#define KL_UART_BASE	LOCAL_HUB_ADDR(MD_UREG0_0)	/* base of UART regs */
#define KL_UART_CMD	LOCAL_HUB_ADDR(MD_UREG0_0)	/* UART command reg */
#define KL_UART_DATA	LOCAL_HUB_ADDR(MD_UREG0_1)	/* UART data reg */
#define KL_I2C_REG	MD_UREG0_0			/* I2C reg */

#ifndef __ASSEMBLY__

/* Address 0x400 to 0x1000 ualias points to cache error eframe + misc
 * CACHE_ERR_SP_PTR could either contain an address to the stack, or
 * the stack could start at CACHE_ERR_SP_PTR
 */
#if defined(HUB_ERR_STS_WAR)
#define CACHE_ERR_EFRAME	0x480
#else /* HUB_ERR_STS_WAR */
#define CACHE_ERR_EFRAME	0x400
#endif /* HUB_ERR_STS_WAR */

#define CACHE_ERR_ECCFRAME	(CACHE_ERR_EFRAME + EF_SIZE)
#define CACHE_ERR_SP_PTR	(0x1000 - 32)	/* why -32? TBD */
#define CACHE_ERR_IBASE_PTR	(0x1000 - 40)
#define CACHE_ERR_SP		(CACHE_ERR_SP_PTR - 16)
#define CACHE_ERR_AREA_SIZE	(ARCS_SPB_OFFSET - CACHE_ERR_EFRAME)

#endif	/* !__ASSEMBLY__ */

#define _ARCSPROM

#if defined(HUB_ERR_STS_WAR)

#define ERR_STS_WAR_REGISTER	IIO_IIBUSERR
#define ERR_STS_WAR_ADDR	LOCAL_HUB_ADDR(IIO_IIBUSERR)
#define ERR_STS_WAR_PHYSADDR	TO_PHYS((__psunsigned_t)ERR_STS_WAR_ADDR)
				/* Used to match addr in error reg. */
#define OLD_ERR_STS_WAR_OFFSET	((MD_MEM_BANKS * MD_BANK_SIZE) - 0x100)

#endif /* HUB_ERR_STS_WAR */

#endif /* _ASM_SN_SN0_ADDRS_H */