sys/arch/alpha/tlsb/tlsbmem.c

   1 /* $NetBSD: tlsbmem.c,v 1.9 2009/03/14 14:45:54 dsl Exp $ */
   2
   3 /*
   4  * Copyright (c) 1997 by Matthew Jacob
   5  * NASA AMES Research Center.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice immediately at the beginning of the file, without modification,
  13  *    this list of conditions, and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. The name of the author may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  24  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * Dummy Node for TLSB Memory Modules found on
  35  * AlphaServer 8200 and 8400 systems.
  36  */
  37
  38 #include <sys/cdefs.h>                  /* RCS ID & Copyright macro defns */
  39
  40 __KERNEL_RCSID(0, "$NetBSD: tlsbmem.c,v 1.9 2009/03/14 14:45:54 dsl Exp $");
  41
  42 #include <sys/param.h>
  43 #include <sys/systm.h>
  44 #include <sys/device.h>
  45 #include <sys/malloc.h>
  46
  47 #include <machine/autoconf.h>
  48 #include <machine/rpb.h>
  49 #include <machine/pte.h>
  50
  51 #include <alpha/tlsb/tlsbreg.h>
  52 #include <alpha/tlsb/tlsbvar.h>
  53
  54 struct tlsbmem_softc {
  55         struct device   sc_dv;
  56         int             sc_node;        /* TLSB node */
  57         u_int16_t       sc_dtype;       /* device type */
  58 };
  59
  60 static int      tlsbmemmatch(struct device *, struct cfdata *, void *);
  61 static void     tlsbmemattach(struct device *, struct device *, void *);
  62 CFATTACH_DECL(tlsbmem, sizeof (struct tlsbmem_softc),
  63     tlsbmemmatch, tlsbmemattach, NULL, NULL);
  64
  65 static int
  66 tlsbmemmatch(struct device *parent, struct cfdata *cf, void *aux)
  67 {
  68         struct tlsb_dev_attach_args *ta = aux;
  69         if (TLDEV_ISMEM(ta->ta_dtype))
  70                 return (1);
  71         return (0);
  72 }
  73
  74 static void
  75 tlsbmemattach(struct device *parent, struct device *self, void *aux)
  76 {
  77         struct tlsb_dev_attach_args *ta = aux;
  78         struct tlsbmem_softc *sc = (struct tlsbmem_softc *)self;
  79
  80         sc->sc_node = ta->ta_node;
  81         sc->sc_dtype = ta->ta_dtype;
  82
  83         printf("\n");
  84 }