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ip27.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/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 */

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