From c3cf005c4b085a81c7bb2627adf508c5190d8cab Mon Sep 17 00:00:00 2001
From: msmith <msmith@FreeBSD.org>
Date: Wed, 13 Dec 2000 01:25:11 +0000
Subject: Next round of PCI subsystem updates:
- Break out the /dev/pci driver into a separate file.
- Kill the COMPAT_OLDPCI support.
- Make the EISA bridge attach a bit more like the old code; explicitly
check for the existence of eisa0/isa0 and only attach if they don't
already exist. Only make one bus_generic_attach() pass over the
bridge, once both busses are attached. Note that the stupid Intel
bridge's class is entirely unpredictable.
- Add prototypes and re-layout the core PCI modules in line with
current coding standards (not a major whitespace change, just moving
the module data to the top of the file).
- Remove redundant type-2 bridge support from the core PCI code; the
PCI-CardBus code does this itself internally. Remove the now
entirely redundant header-class-specific support, as well as the
secondary and subordinate bus number fields. These are bridge
attributes now.
- Add support for PCI Extended Capabilities.
- Add support for PCI Power Management. The interface currently
allows a driver to query and set the power state of a device.
- Add helper functions to allow drivers to enable/disable busmastering
and the decoding of I/O and memory ranges.
- Use PCI_SLOTMAX and PCI_FUNCMAX rather than magic numbers in some
places.
- Make the PCI-PCI bridge code a little more paranoid about valid
I/O and memory decodes.
- Add some more PCI register definitions for the command and status
registers. Correct another bogus definition for type-1 bridges.
---
sys/pci/pci_compat.c | 336 ---------------------------------------------------
1 file changed, 336 deletions(-)
delete mode 100644 sys/pci/pci_compat.c
(limited to 'sys/pci')
diff --git a/sys/pci/pci_compat.c b/sys/pci/pci_compat.c
deleted file mode 100644
index 401680d..0000000
--- a/sys/pci/pci_compat.c
+++ /dev/null
@@ -1,336 +0,0 @@
-/*
- * 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 and 3.x versions of PCI code */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/malloc.h>
-#include <sys/module.h>
-
-#include <vm/vm.h>
-#include <vm/pmap.h>
-
-#include <sys/bus.h>
-#include <machine/bus.h>
-#include <sys/rman.h>
-#include <machine/resource.h>
-#include <sys/interrupt.h>
-
-#include <sys/pciio.h>
-#include <pci/pcireg.h>
-#include <pci/pcivar.h>
-
-#ifdef APIC_IO
-#include <machine/smp.h>
-#endif
-
-/* ------------------------------------------------------------------------- */
-
-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_cfgread (pcicfgregs *cfg, int reg, int bytes)
-{
- return (pci_read_config(cfg->dev, reg, bytes));
-}
-
-void
-pci_cfgwrite (pcicfgregs *cfg, int reg, int data, int bytes)
-{
- pci_write_config(cfg->dev, reg, data, bytes);
-}
-
-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_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;
-}
-
-/*
- * A simple driver to wrap the old pci driver mechanism for back-compat.
- */
-
-static int
-pci_compat_probe(device_t dev)
-{
- struct pci_device *dvp;
- struct pci_devinfo *dinfo;
- pcicfgregs *cfg;
- const char *name;
- int error;
-
- dinfo = device_get_ivars(dev);
- cfg = &dinfo->cfg;
- dvp = device_get_driver(dev)->priv;
-
- /*
- * Do the wrapped probe.
- */
- error = ENXIO;
- if (dvp && dvp->pd_probe) {
- name = dvp->pd_probe(cfg, (cfg->device << 16) + cfg->vendor);
- if (name) {
- device_set_desc_copy(dev, name);
- /* Allow newbus drivers to match "better" */
- error = -200;
- }
- }
-
- return error;
-}
-
-static int
-pci_compat_attach(device_t dev)
-{
- struct pci_device *dvp;
- struct pci_devinfo *dinfo;
- pcicfgregs *cfg;
- int unit;
-
- dinfo = device_get_ivars(dev);
- cfg = &dinfo->cfg;
- dvp = device_get_driver(dev)->priv;
-
- unit = device_get_unit(dev);
- if (unit > *dvp->pd_count)
- *dvp->pd_count = unit;
- if (dvp->pd_attach)
- dvp->pd_attach(cfg, unit);
- device_printf(dev, "driver is using old-style compatability shims\n");
- return 0;
-}
-
-static device_method_t pci_compat_methods[] = {
- /* Device interface */
- DEVMETHOD(device_probe, pci_compat_probe),
- DEVMETHOD(device_attach, pci_compat_attach),
-
- { 0, 0 }
-};
-
-/*
- * Create a new style driver around each old pci driver.
- */
-int
-compat_pci_handler(module_t mod, int type, void *data)
-{
- struct pci_device *dvp = (struct pci_device *)data;
- driver_t *driver;
- devclass_t pci_devclass = devclass_find("pci");
-
- switch (type) {
- case MOD_LOAD:
- driver = malloc(sizeof(driver_t), M_DEVBUF, M_NOWAIT | M_ZERO);
- if (!driver)
- return ENOMEM;
- driver->name = dvp->pd_name;
- driver->methods = pci_compat_methods;
- driver->size = sizeof(struct pci_devinfo *);
- driver->priv = dvp;
- devclass_add_driver(pci_devclass, driver);
- break;
- case MOD_UNLOAD:
- printf("%s: module unload not supported!\n", dvp->pd_name);
- return EOPNOTSUPP;
- default:
- break;
- }
- return 0;
-}
--
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