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      1 /* $NetBSD: tlsbmem.c,v 1.12 2021/07/04 22:42:36 thorpej 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 1.12 2021/07/04 22:42:36 thorpej Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/device.h>
     45 
     46 #include <machine/autoconf.h>
     47 #include <machine/rpb.h>
     48 #include <machine/pte.h>
     49 
     50 #include <alpha/tlsb/tlsbreg.h>
     51 #include <alpha/tlsb/tlsbvar.h>
     52 
     53 struct tlsbmem_softc {
     54 	device_t	sc_dev;
     55 	int		sc_node;	/* TLSB node */
     56 	uint16_t	sc_dtype;	/* device type */
     57 };
     58 
     59 static int	tlsbmemmatch(device_t, cfdata_t, void *);
     60 static void	tlsbmemattach(device_t, device_t, void *);
     61 
     62 CFATTACH_DECL_NEW(tlsbmem, sizeof (struct tlsbmem_softc),
     63     tlsbmemmatch, tlsbmemattach, NULL, NULL);
     64 
     65 static int
     66 tlsbmemmatch(device_t parent, cfdata_t 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(device_t parent, device_t self, void *aux)
     76 {
     77 	struct tlsb_dev_attach_args *ta = aux;
     78 	struct tlsbmem_softc *sc = device_private(self);
     79 
     80 	sc->sc_dev = self;
     81 	sc->sc_node = ta->ta_node;
     82 	sc->sc_dtype = ta->ta_dtype;
     83 
     84 	aprint_normal("\n");
     85 }
     86