ip27.h

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/*
 * 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/IP27.h>.
 *
 * Copyright (C) 1992 - 1997, 1999 Silicon Graphics, Inc.
 * Copyright (C) 1999, 2006 by Ralf Baechle
 */
#ifndef _ASM_SN_SN0_IP27_H
#define _ASM_SN_SN0_IP27_H

#include <asm/mipsregs.h>

/*
 * Simple definitions for the masks which remove SW bits from pte.
 */

#define TLBLO_HWBITSHIFT    0       /* Shift value, for masking */

#ifndef __ASSEMBLY__

#define CAUSE_BERRINTR      IE_IRQ5

#define ECCF_CACHE_ERR  0
#define ECCF_TAGLO      1
#define ECCF_ECC        2
#define ECCF_ERROREPC   3
#define ECCF_PADDR      4
#define ECCF_SIZE       (5 * sizeof(long))

#endif /* !__ASSEMBLY__ */

#ifdef __ASSEMBLY__

/*
 * KL_GET_CPUNUM (similar to EV_GET_SPNUM for EVEREST platform) reads
 * the processor number of the calling processor.  The proc parameters
 * must be a register.
 */
#define KL_GET_CPUNUM(proc)                 \
    dli proc, LOCAL_HUB(0);             \
    ld  proc, PI_CPU_NUM(proc)

#endif /* __ASSEMBLY__ */

/*
 * R10000 status register interrupt bit mask usage for IP27.
 */
#define SRB_SWTIMO  IE_SW0      /* 0x0100 */
#define SRB_NET     IE_SW1      /* 0x0200 */
#define SRB_DEV0    IE_IRQ0     /* 0x0400 */
#define SRB_DEV1    IE_IRQ1     /* 0x0800 */
#define SRB_TIMOCLK IE_IRQ2     /* 0x1000 */
#define SRB_PROFCLK IE_IRQ3     /* 0x2000 */
#define SRB_ERR     IE_IRQ4     /* 0x4000 */
#define SRB_SCHEDCLK    IE_IRQ5     /* 0x8000 */

#define SR_IBIT_HI  SRB_DEV0
#define SR_IBIT_PROF    SRB_PROFCLK

#define SRB_SWTIMO_IDX      0
#define SRB_NET_IDX     1
#define SRB_DEV0_IDX        2
#define SRB_DEV1_IDX        3
#define SRB_TIMOCLK_IDX     4
#define SRB_PROFCLK_IDX     5
#define SRB_ERR_IDX     6
#define SRB_SCHEDCLK_IDX    7

#define NUM_CAUSE_INTRS     8

#define SCACHE_LINESIZE 128
#define SCACHE_LINEMASK (SCACHE_LINESIZE - 1)

#include <asm/sn/addrs.h>

#define LED_CYCLE_MASK  0x0f
#define LED_CYCLE_SHFT  4

#define SEND_NMI(_nasid, _slice)    \
          REMOTE_HUB_S((_nasid),  (PI_NMI_A + ((_slice) * PI_NMI_OFFSET)), 1)

#endif /* _ASM_SN_SN0_IP27_H */