root/sys/dev/pci/ccp_pci.c
/*      $OpenBSD: ccp_pci.c,v 1.15 2026/02/12 14:24:53 hshoexer Exp $ */

/*
 * Copyright (c) 2018 David Gwynne <dlg@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/timeout.h>

#include <machine/bus.h>

#include <dev/pci/pcidevs.h>
#include <dev/pci/pcivar.h>

#include <dev/ic/ccpvar.h>
#include <dev/ic/pspvar.h>

#include "psp.h"

#define CCP_PCI_BAR     0x18

int     ccp_pci_match(struct device *, void *, void *);
void    ccp_pci_attach(struct device *, struct device *, void *);

const struct cfattach ccp_pci_ca = {
        sizeof(struct ccp_softc),
        ccp_pci_match,
        ccp_pci_attach,
};

static const struct pci_matchid ccp_pci_devices[] = {
        { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_16_CCP },
        { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_17_CCP_1 },
        { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_17_CCP_2 },
        { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_17_1X_CCP },
        { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_17_3X_CCP },
        { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_17_90_CCP },
        { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_19_1X_PSP },
        { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_1A_PSP },
};

int
ccp_pci_match(struct device *parent, void *match, void *aux)
{
        return (pci_matchbyid(aux, ccp_pci_devices, nitems(ccp_pci_devices)));
}

void
ccp_pci_attach(struct device *parent, struct device *self, void *aux)
{
        struct ccp_softc *sc = (struct ccp_softc *)self;
        struct pci_attach_args *pa = aux;
        pcireg_t memtype;
#if NPSP > 0
        int psp_matched;
#endif

        memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, CCP_PCI_BAR);
        if (PCI_MAPREG_TYPE(memtype) != PCI_MAPREG_TYPE_MEM) {
                printf(": wrong memory type\n");
                return;
        }

        if (pci_mapreg_map(pa, CCP_PCI_BAR, memtype, 0,
            &sc->sc_iot, &sc->sc_ioh, NULL, NULL, 0) != 0) {
                printf(": cannot map registers\n");
                return;
        }

#if NPSP > 0
        psp_matched = psp_pci_match(sc, aux);
        if (psp_matched)
                psp_pci_intr_map(sc, pa);
#endif

        ccp_attach(sc);

#if NPSP > 0
        if (psp_matched)
                psp_pci_attach(sc, pa);
#endif
}