/*
 * 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(__ASSEMBLER__)

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

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

#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 __ASSEMBLER__

/* 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  /* !__ASSEMBLER__ */

#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 */