NetBSD/sys/arch/sgimips/pci/pci_machdep.c

204 lines
4.6 KiB
C

/* $NetBSD: pci_machdep.c,v 1.4 2000/12/28 22:59:10 sommerfeld Exp $ */
/*
* Copyright (c) 2000 Soren S. Jorvang
* 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 for the
* NetBSD Project. See http://www.netbsd.org/ for
* information about NetBSD.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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/types.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <uvm/uvm_extern.h>
#define _SGIMIPS_BUS_DMA_PRIVATE
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
/*
* PCI doesn't have any special needs; just use
* the generic versions of these functions.
*/
struct sgimips_bus_dma_tag pci_bus_dma_tag = {
_bus_dmamap_create,
_bus_dmamap_destroy,
_bus_dmamap_load,
_bus_dmamap_load_mbuf,
_bus_dmamap_load_uio,
_bus_dmamap_load_raw,
_bus_dmamap_unload,
_bus_dmamap_sync,
_bus_dmamem_alloc,
_bus_dmamem_free,
_bus_dmamem_map,
_bus_dmamem_unmap,
_bus_dmamem_mmap,
};
void
pci_attach_hook(parent, self, pba)
struct device *parent, *self;
struct pcibus_attach_args *pba;
{
/* XXX */
return;
}
int
pci_bus_maxdevs(pc, busno)
pci_chipset_tag_t pc;
int busno;
{
#if 0
return 32;
#else
return 4; /* XXX O2 master aborts.. */
#endif
}
pcitag_t
pci_make_tag(pc, bus, device, function)
pci_chipset_tag_t pc;
int bus, device, function;
{
return (bus << 16) | (device << 11) | (function << 8);
}
void
pci_decompose_tag(pc, tag, bp, dp, fp)
pci_chipset_tag_t pc;
pcitag_t tag;
int *bp, *dp, *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(pc, tag, reg)
pci_chipset_tag_t pc;
pcitag_t tag;
int reg;
{
return (*pc->pc_conf_read)(pc, tag, reg);
}
void
pci_conf_write(pc, tag, reg, data)
pci_chipset_tag_t pc;
pcitag_t tag;
int reg;
pcireg_t data;
{
(*pc->pc_conf_write)(pc, tag, reg, data);
}
int
pci_intr_map(pa, ihp)
struct pci_attach_args *pa;
pci_intr_handle_t *ihp;
{
int line = pa->pa_intrline;
#if 0
pci_chipset_tag_t pc = pa->pa_pc;
pcitag_t intrtag = pa->pa_intrtag;
int pin = pa->pa_intrpin;
int bus, dev, func;
pci_decompose_tag(pc, intrtag, &bus, &dev, &func);
#endif
*ihp = line;
return 0;
}
const char *
pci_intr_string(pc, ih)
pci_chipset_tag_t pc;
pci_intr_handle_t ih;
{
static char irqstr[8];
#if 0
sprintf(irqstr, "mace %d", ih);
#else
sprintf(irqstr, "mace");
#endif
return irqstr;
}
const struct evcnt *
pci_intr_evcnt(pc, ih)
pci_chipset_tag_t pc;
pci_intr_handle_t ih;
{
/* XXX for now, no evcnt parent reported */
return NULL;
}
extern void * crime_intr_establish(int, int, int, int (*)(void *), void *);
void *
pci_intr_establish(pc, ih, level, func, arg)
pci_chipset_tag_t pc;
pci_intr_handle_t ih;
int level, (*func)(void *);
void *arg;
{
crime_intr_establish(0, 0, 0, func, arg);
return (void *)-1; /* XXX */
}
void
pci_intr_disestablish(pc, cookie)
pci_chipset_tag_t pc;
void *cookie;
{
panic("pci_intr_disestablish: not implemented");
return;
}