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tlsbmem.c revision 1.2 
      1 /*	$NetBSD: tlsbmem.c,v 1.2 1997/03/12 21:11:05 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 <sys/param.h>
     39 #include <sys/systm.h>
     40 #include <sys/device.h>
     41 #include <sys/malloc.h>
     42 
     43 #include <machine/autoconf.h>
     44 #include <machine/rpb.h>
     45 #include <machine/pte.h>
     46 
     47 #include <alpha/tlsb/tlsbreg.h>
     48 #include <alpha/tlsb/tlsbvar.h>
     49 
     50 struct tlsbmem_softc {
     51 	struct device	sc_dv;
     52 	int		sc_node;	/* TLSB node */
     53 	u_int16_t	sc_dtype;	/* device type */
     54 };
     55 
     56 static int	tlsbmemmatch __P((struct device *, struct cfdata *, void *));
     57 static void	tlsbmemattach __P((struct device *, struct device *, void *));
     58 struct cfattach tlsbmem_ca = {
     59 	sizeof (struct tlsbmem_softc), tlsbmemmatch, tlsbmemattach
     60 };
     61 
     62 struct cfdriver	tlsbmem_cd = {
     63 	NULL, "tlsbmem", DV_DULL,
     64 };
     65 
     66 static int
     67 tlsbmemmatch(parent, cf, aux)
     68 	struct device *parent;
     69 	struct cfdata *cf;
     70 	void *aux;
     71 {
     72 	struct tlsb_dev_attach_args *ta = aux;
     73 	if (TLDEV_ISMEM(ta->ta_dtype))
     74 		return (1);
     75 	return (0);
     76 }
     77 
     78 static void
     79 tlsbmemattach(parent, self, aux)
     80 	struct device *parent;
     81 	struct device *self;
     82 	void *aux;
     83 {
     84 	struct tlsb_dev_attach_args *ta = aux;
     85 	struct tlsbmem_softc *sc = (struct tlsbmem_softc *)self;
     86 
     87 	sc->sc_node = ta->ta_node;
     88 	sc->sc_dtype = ta->ta_dtype;
     89 
     90 	printf("\n");
     91 }
     92