115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/* $NetBSD: pci_machdep.c,v 1.5 2016/08/05 17:04:52 scole Exp $ */
|
|
/*
|
|
* Copyright (c) 2009, 2010 KIYOHARA Takashi
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
|
|
*/
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.5 2016/08/05 17:04:52 scole Exp $");
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/sal.h>
|
|
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcidevs.h>
|
|
|
|
|
|
void
|
|
pci_attach_hook(device_t parent, device_t self, struct pcibus_attach_args *pba)
|
|
{
|
|
|
|
/* Nothing */
|
|
}
|
|
|
|
int
|
|
pci_bus_maxdevs(pci_chipset_tag_t pc, int busno)
|
|
{
|
|
|
|
return 32; /* 32 device/bus */
|
|
}
|
|
|
|
pcitag_t
|
|
pci_make_tag(pci_chipset_tag_t pc, int bus, int device, int function)
|
|
{
|
|
|
|
#if DIAGNOSTIC
|
|
if (bus >= 256 || device >= 32 || function >= 8)
|
|
panic("%s: bad request", __func__);
|
|
#endif
|
|
|
|
return (bus << 16) | (device << 11) | (function << 8);
|
|
}
|
|
|
|
void
|
|
pci_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag, int *bp, int *dp, int *fp)
|
|
{
|
|
|
|
if (bp != NULL)
|
|
*bp = (tag >> 16) & 0xff;
|
|
if (dp != NULL)
|
|
*dp = (tag >> 11) & 0x1f;
|
|
if (fp != NULL)
|
|
*fp = (tag >> 8) & 0x07;
|
|
}
|
|
|
|
pcireg_t
|
|
pci_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
|
|
{
|
|
struct ia64_sal_result res;
|
|
|
|
if ((unsigned int)reg >= PCI_CONF_SIZE)
|
|
return -1;
|
|
|
|
res = ia64_sal_entry(SAL_PCI_CONFIG_READ,
|
|
tag | reg, sizeof(pcireg_t), 0, 0, 0, 0, 0);
|
|
if (res.sal_status < 0)
|
|
return -1;
|
|
else
|
|
return res.sal_result[0];
|
|
}
|
|
|
|
void
|
|
pci_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg, pcireg_t val)
|
|
{
|
|
struct ia64_sal_result res;
|
|
|
|
if ((unsigned int)reg >= PCI_CONF_SIZE)
|
|
return;
|
|
|
|
res = ia64_sal_entry(SAL_PCI_CONFIG_WRITE,
|
|
tag | reg, sizeof(pcireg_t), val, 0, 0, 0, 0);
|
|
if (res.sal_status < 0)
|
|
printf("pci configuration write failed\n");
|
|
}
|
|
|
|
int
|
|
pci_enumerate_bus(struct pci_softc *sc, const int *locators,
|
|
int (*match)(const struct pci_attach_args *), struct pci_attach_args *pap)
|
|
{
|
|
/* XXX implement */
|
|
panic("ia64 pci_enumerate_bus not implemented");
|
|
|
|
return -1;
|
|
}
|