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tlsbmem.c revision 1.1 
      1 /*	$NetBSD: tlsbmem.c,v 1.1 1997/03/12 19:20:18 cgd Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997
      5  * Matthew Jacob
      6  * NASA AMES Research Center.
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice immediately at the beginning of the file, without modification,
     14  *    this list of conditions, and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
     25  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 /*
     35  * Dummy Node for TLSB Memory Modules found on
     36  * AlphaServer 8200 and 8400 systems.
     37  */
     38 
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/device.h>
     42 #include <sys/malloc.h>
     43 
     44 #include <machine/autoconf.h>
     45 #include <machine/rpb.h>
     46 #include <machine/pte.h>
     47 
     48 #include <alpha/tlsb/tlsbreg.h>
     49 #include <alpha/tlsb/tlsbvar.h>
     50 
     51 struct tlsbmem_softc {
     52 	struct device	sc_dv;
     53 	int		sc_node;	/* TLSB node */
     54 	u_int16_t	sc_dtype;	/* device type */
     55 };
     56 
     57 static int	tlsbmemmatch __P((struct device *, struct cfdata *, void *));
     58 static void	tlsbmemattach __P((struct device *, struct device *, void *));
     59 struct cfattach tlsbmem_ca = {
     60 	sizeof (struct tlsbmem_softc), tlsbmemmatch, tlsbmemattach
     61 };
     62 
     63 struct cfdriver	tlsbmem_cd = {
     64 	NULL, "tlsbmem", DV_DULL,
     65 };
     66 
     67 static int
     68 tlsbmemmatch(parent, cf, aux)
     69 	struct device *parent;
     70 	struct cfdata *cf;
     71 	void *aux;
     72 {
     73 	struct tlsb_dev_attach_args *ta = aux;
     74 	if (TLDEV_ISMEM(ta->ta_dtype))
     75 		return (1);
     76 	return (0);
     77 }
     78 
     79 static void
     80 tlsbmemattach(parent, self, aux)
     81 	struct device *parent;
     82 	struct device *self;
     83 	void *aux;
     84 {
     85 	struct tlsb_dev_attach_args *ta = aux;
     86 	struct tlsbmem_softc *sc = (struct tlsbmem_softc *)self;
     87 
     88 	sc->sc_node = ta->ta_node;
     89 	sc->sc_dtype = ta->ta_dtype;
     90 
     91 	printf("\n");
     92 }
     93