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tlsbmem.c revision 1.3 
      1 /* $NetBSD: tlsbmem.c,v 1.3 1997/04/06 20:09:17 cgd 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 <machine/options.h>		/* Pull in config options headers */
     39 
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/device.h>
     43 #include <sys/malloc.h>
     44 
     45 #include <machine/autoconf.h>
     46 #include <machine/rpb.h>
     47 #include <machine/pte.h>
     48 
     49 #include <alpha/tlsb/tlsbreg.h>
     50 #include <alpha/tlsb/tlsbvar.h>
     51 
     52 struct tlsbmem_softc {
     53 	struct device	sc_dv;
     54 	int		sc_node;	/* TLSB node */
     55 	u_int16_t	sc_dtype;	/* device type */
     56 };
     57 
     58 static int	tlsbmemmatch __P((struct device *, struct cfdata *, void *));
     59 static void	tlsbmemattach __P((struct device *, struct device *, void *));
     60 struct cfattach tlsbmem_ca = {
     61 	sizeof (struct tlsbmem_softc), tlsbmemmatch, tlsbmemattach
     62 };
     63 
     64 struct cfdriver	tlsbmem_cd = {
     65 	NULL, "tlsbmem", DV_DULL,
     66 };
     67 
     68 static int
     69 tlsbmemmatch(parent, cf, aux)
     70 	struct device *parent;
     71 	struct cfdata *cf;
     72 	void *aux;
     73 {
     74 	struct tlsb_dev_attach_args *ta = aux;
     75 	if (TLDEV_ISMEM(ta->ta_dtype))
     76 		return (1);
     77 	return (0);
     78 }
     79 
     80 static void
     81 tlsbmemattach(parent, self, aux)
     82 	struct device *parent;
     83 	struct device *self;
     84 	void *aux;
     85 {
     86 	struct tlsb_dev_attach_args *ta = aux;
     87 	struct tlsbmem_softc *sc = (struct tlsbmem_softc *)self;
     88 
     89 	sc->sc_node = ta->ta_node;
     90 	sc->sc_dtype = ta->ta_dtype;
     91 
     92 	printf("\n");
     93 }
     94