/*      $NetBSD: rmixl_cpunode.c,v 1.6 2022/09/29 07:00:47 skrll Exp $  */

/*
* Copyright (c) 1994,1995 Mark Brinicombe.
* Copyright (c) 1994 Brini.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by Brini.
* 4. The name of the company nor the name of the author may be used to
*    endorse or promote products derived from this software without specific
*    prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* RiscBSD kernel project
*
* mainbus.c
*
* cpunode configuration
*
* Created      : 15/12/94
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rmixl_cpunode.c,v 1.6 2022/09/29 07:00:47 skrll Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/device.h>

#include <evbmips/rmixl/autoconf.h>

#include <mips/rmi/rmixlvar.h>
#include <mips/rmi/rmixl_cpunodevar.h>

#include <sys/bus.h>
#include "locators.h"

static int  cpunode_rmixl_match(device_t, cfdata_t, void *);
static void cpunode_rmixl_attach(device_t, device_t, void *);
static int  cpunode_rmixl_print(void *, const char *);

CFATTACH_DECL_NEW(cpunode_rmixl, sizeof(struct cpunode_softc),
       cpunode_rmixl_match, cpunode_rmixl_attach, NULL, NULL);

static int
cpunode_rmixl_match(device_t parent, cfdata_t cf, void *aux)
{
       struct mainbus_attach_args *ma = aux;

       if (!cpu_rmixl(mips_options.mips_cpu))
               return 0;

       /* XXX for now attach one node only */
       if (ma->ma_node != 0)
               return 0;

       return 1;
}

static void
cpunode_rmixl_attach(device_t parent, device_t self, void *aux)
{
       u_int sz;
       u_int ncores;
       struct cpunode_softc *sc = device_private(self);
       struct mainbus_attach_args *ma = aux;
       struct cpunode_attach_args na;
       const u_int cpu_cidflags = mips_options.mips_cpu->cpu_cidflags;

       aprint_naive("\n");
       aprint_normal("\n");

       sc->sc_dev = self;
       sc->sc_node = ma->ma_node;
       sc->sc_attached = 1;

       switch (cpu_cidflags & MIPS_CIDFL_RMI_TYPE) {
       case CIDFL_RMI_TYPE_XLR:
       case CIDFL_RMI_TYPE_XLS:
               /*
                * L2 is unified on XLR, XLS
                */
               sz = (size_t)MIPS_CIDFL_RMI_L2SZ(cpu_cidflags);
               aprint_normal("%s: %dKB/32B %d-banked 8-way set associative"
                       " unified L2 cache\n", device_xname(self),
                       sz/1024, sz/(256 * 1024));
               break;
       case CIDFL_RMI_TYPE_XLP:
               /* TBD */
               break;
       }

       ncores = MIPS_CIDFL_RMI_NCORES(cpu_cidflags);
       aprint_normal("%s: %d %s on node\n", device_xname(self), ncores,
               ncores == 1 ? "core" : "cores");

       /*
        * Attach cpu (RMI thread) devices
        */
       for (int i=0; i < ncores; i++) {
               na.na_name = "cpucore";
               na.na_node = ma->ma_node;
               na.na_core = i;
               config_found(self, &na, cpunode_rmixl_print, CFARGS_NONE);
       }

       /*
        * Attach obio
        */
       na.na_name = "obio";
       config_found(self, &na, NULL, CFARGS_NONE);
}

static int
cpunode_rmixl_print(void *aux, const char *pnp)
{
       struct cpunode_attach_args *na = aux;

       if (pnp != NULL)
               aprint_normal("%s:", pnp);
       aprint_normal(" core %d", na->na_core);

       return (UNCONF);
}