mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
45f0aa1f0e
* Change the hack used on the alpha for mapping devices into DENSE or BWX memory spaces to a simpler one. Its still a hack and should be a seperate api to explicitly map the resource. * Add $FreeBSD$ as necessary.
274 lines
6.3 KiB
C
274 lines
6.3 KiB
C
/*
|
|
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
|
|
* 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 unmodified, 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.
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
*/
|
|
|
|
#include "opt_bus.h"
|
|
|
|
/* for compatibility to FreeBSD-2.2 version of PCI code */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
#include <sys/interrupt.h>
|
|
|
|
#include <sys/bus.h>
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <pci/pcireg.h>
|
|
#include <pci/pcivar.h>
|
|
|
|
#ifdef APIC_IO
|
|
#include <machine/smp.h>
|
|
#endif
|
|
|
|
#ifdef __i386__
|
|
#include <i386/isa/intr_machdep.h>
|
|
#endif
|
|
|
|
|
|
#ifdef PCI_COMPAT
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
u_long
|
|
pci_conf_read(pcici_t cfg, u_long reg)
|
|
{
|
|
return (pci_read_config(cfg->dev, reg, 4));
|
|
}
|
|
|
|
void
|
|
pci_conf_write(pcici_t cfg, u_long reg, u_long data)
|
|
{
|
|
pci_write_config(cfg->dev, reg, data, 4);
|
|
}
|
|
|
|
int
|
|
pci_map_port(pcici_t cfg, u_long reg, pci_port_t* pa)
|
|
{
|
|
int rid;
|
|
struct resource *res;
|
|
|
|
rid = reg;
|
|
res = bus_alloc_resource(cfg->dev, SYS_RES_IOPORT, &rid,
|
|
0, ~0, 1, RF_ACTIVE);
|
|
if (res) {
|
|
*pa = rman_get_start(res);
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pci_map_mem(pcici_t cfg, u_long reg, vm_offset_t* va, vm_offset_t* pa)
|
|
{
|
|
int rid;
|
|
struct resource *res;
|
|
|
|
rid = reg;
|
|
res = bus_alloc_resource(cfg->dev, SYS_RES_MEMORY, &rid,
|
|
0, ~0, 1, RF_ACTIVE);
|
|
if (res) {
|
|
*pa = rman_get_start(res);
|
|
*va = (vm_offset_t) rman_get_virtual(res);
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pci_map_dense(pcici_t cfg, u_long reg, vm_offset_t* va, vm_offset_t* pa)
|
|
{
|
|
int rid;
|
|
struct resource *res;
|
|
|
|
rid = reg;
|
|
res = bus_alloc_resource(cfg->dev, SYS_RES_MEMORY, &rid,
|
|
0, ~0, 1, RF_ACTIVE|PCI_RF_DENSE);
|
|
if (res) {
|
|
*pa = rman_get_start(res);
|
|
*va = (vm_offset_t) rman_get_virtual(res);
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pci_map_bwx(pcici_t cfg, u_long reg, vm_offset_t* va, vm_offset_t* pa)
|
|
{
|
|
int rid;
|
|
struct resource *res;
|
|
|
|
rid = reg;
|
|
res = bus_alloc_resource(cfg->dev, SYS_RES_MEMORY, &rid,
|
|
0, ~0, 1, RF_ACTIVE|PCI_RF_BWX);
|
|
if (res) {
|
|
*pa = rman_get_start(res);
|
|
*va = (vm_offset_t) rman_get_virtual(res);
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pci_map_int(pcici_t cfg, pci_inthand_t *handler, void *arg, intrmask_t *maskptr)
|
|
{
|
|
return (pci_map_int_right(cfg, handler, arg, maskptr, 0));
|
|
}
|
|
|
|
int
|
|
pci_map_int_right(pcici_t cfg, pci_inthand_t *handler, void *arg,
|
|
intrmask_t *maskptr, u_int intflags)
|
|
{
|
|
int error;
|
|
#ifdef APIC_IO
|
|
int nextpin, muxcnt;
|
|
#endif
|
|
if (cfg->intpin != 0) {
|
|
int irq = cfg->intline;
|
|
int rid = 0;
|
|
struct resource *res;
|
|
int flags = 0;
|
|
int resflags = RF_SHAREABLE|RF_ACTIVE;
|
|
void *ih;
|
|
|
|
#ifdef INTR_FAST
|
|
if (intflags & INTR_FAST)
|
|
flags |= INTR_FAST;
|
|
if (intflags & INTR_EXCL)
|
|
resflags &= ~RF_SHAREABLE;
|
|
#endif
|
|
|
|
res = bus_alloc_resource(cfg->dev, SYS_RES_IRQ, &rid,
|
|
irq, irq, 1, resflags);
|
|
if (!res) {
|
|
printf("pci_map_int: can't allocate interrupt\n");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This is ugly. Translate the mask into an interrupt type.
|
|
*/
|
|
if (maskptr == &tty_imask)
|
|
flags |= INTR_TYPE_TTY;
|
|
else if (maskptr == &bio_imask)
|
|
flags |= INTR_TYPE_BIO;
|
|
else if (maskptr == &net_imask)
|
|
flags |= INTR_TYPE_NET;
|
|
else if (maskptr == &cam_imask)
|
|
flags |= INTR_TYPE_CAM;
|
|
|
|
error = BUS_SETUP_INTR(device_get_parent(cfg->dev), cfg->dev,
|
|
res, flags, handler, arg, &ih);
|
|
if (error != 0)
|
|
return 0;
|
|
|
|
#ifdef NEW_BUS_PCI
|
|
/*
|
|
* XXX this apic stuff looks totally busted. It should
|
|
* move to the nexus code which actually registers the
|
|
* interrupt.
|
|
*/
|
|
#endif
|
|
|
|
#ifdef APIC_IO
|
|
nextpin = next_apic_irq(irq);
|
|
|
|
if (nextpin < 0)
|
|
return 1;
|
|
|
|
/*
|
|
* Attempt handling of some broken mp tables.
|
|
*
|
|
* It's OK to yell (since the mp tables are broken).
|
|
*
|
|
* Hanging in the boot is not OK
|
|
*/
|
|
|
|
muxcnt = 2;
|
|
nextpin = next_apic_irq(nextpin);
|
|
while (muxcnt < 5 && nextpin >= 0) {
|
|
muxcnt++;
|
|
nextpin = next_apic_irq(nextpin);
|
|
}
|
|
if (muxcnt >= 5) {
|
|
printf("bogus MP table, more than 4 IO APIC pins connected to the same PCI device or ISA/EISA interrupt\n");
|
|
return 0;
|
|
}
|
|
|
|
printf("bogus MP table, %d IO APIC pins connected to the same PCI device or ISA/EISA interrupt\n", muxcnt);
|
|
|
|
nextpin = next_apic_irq(irq);
|
|
while (nextpin >= 0) {
|
|
rid = 0;
|
|
res = bus_alloc_resource(cfg->dev, SYS_RES_IRQ, &rid,
|
|
nextpin, nextpin, 1,
|
|
resflags);
|
|
if (!res) {
|
|
printf("pci_map_int: can't allocate extra interrupt\n");
|
|
return 0;
|
|
}
|
|
error = BUS_SETUP_INTR(device_get_parent(cfg->dev),
|
|
cfg->dev, res, flags,
|
|
handler, arg, &ih);
|
|
if (error != 0) {
|
|
printf("pci_map_int: BUS_SETUP_INTR failed\n");
|
|
return 0;
|
|
}
|
|
printf("Registered extra interrupt handler for int %d (in addition to int %d)\n", nextpin, irq);
|
|
nextpin = next_apic_irq(nextpin);
|
|
}
|
|
#endif
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
pci_unmap_int(pcici_t cfg)
|
|
{
|
|
return (0); /* not supported, yet, since cfg doesn't know about idesc */
|
|
}
|
|
|
|
pcici_t
|
|
pci_get_parent_from_tag(pcici_t tag)
|
|
{
|
|
return (pcici_t)pci_devlist_get_parent(tag);
|
|
}
|
|
|
|
int
|
|
pci_get_bus_from_tag(pcici_t tag)
|
|
{
|
|
return tag->bus;
|
|
}
|
|
|
|
#endif /* PCI_COMPAT */
|