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authorJuli Mallett <jmallett@FreeBSD.org>2012-03-10 06:45:21 +0000
committerJuli Mallett <jmallett@FreeBSD.org>2012-03-10 06:45:21 +0000
commitfd71d13eb60e9e6336dbdad29596fe908a8f47f9 (patch)
tree6d3df9964c68ba79f44787b8992d338405c529ce
parent4b6b28c350feeb1a5c97cb20631f3d562c7b76c9 (diff)
Notes
-rw-r--r--sys/conf/files.mips1
-rw-r--r--sys/mips/mips/mainbus.c334
2 files changed, 0 insertions, 335 deletions
diff --git a/sys/conf/files.mips b/sys/conf/files.mips
index f148cbf75aa8..0cde851c45e2 100644
--- a/sys/conf/files.mips
+++ b/sys/conf/files.mips
@@ -30,7 +30,6 @@ mips/mips/cpu.c standard
mips/mips/elf_machdep.c standard
mips/mips/exception.S standard
mips/mips/gdb_machdep.c standard
-# mips/mips/mainbus.c standard
mips/mips/pmap.c standard
mips/mips/trap.c standard
mips/mips/vm_machdep.c standard
diff --git a/sys/mips/mips/mainbus.c b/sys/mips/mips/mainbus.c
deleted file mode 100644
index b68b74bc39e2..000000000000
--- a/sys/mips/mips/mainbus.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/*-
- * Copyright 1998 Massachusetts Institute of Technology
- *
- * Permission to use, copy, modify, and distribute this software and
- * its documentation for any purpose and without fee is hereby
- * granted, provided that both the above copyright notice and this
- * permission notice appear in all copies, that both the above
- * copyright notice and this permission notice appear in all
- * supporting documentation, and that the name of M.I.T. not be used
- * in advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission. M.I.T. makes
- * no representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied
- * warranty.
- *
- * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
- * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
- * SHALL M.I.T. 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.
- *
- * from: src/sys/i386/i386/nexus.c,v 1.26.2.5 2000/11/16 09:30:57 nyan
- * JNPR: mainbus.c,v 1.2.4.1 2007/08/16 13:02:11 girish
- */
-
-/*
- * This code implements a `root mainbus' for Intel Architecture
- * machines. The function of the root mainbus is to serve as an
- * attachment point for both processors and buses, and to manage
- * resources which are common to all of them. In particular,
- * this code implements the core resource managers for interrupt
- * requests, DMA requests (which rightfully should be a part of the
- * ISA code but it's easier to do it here for now), I/O port addresses,
- * and I/O memory address space.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "opt_cputype.h"
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/bus.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <machine/bus.h>
-#include <sys/rman.h>
-
-#include <machine/vmparam.h>
-#include <vm/vm.h>
-#include <sys/lock.h>
-#include <sys/mutex.h>
-#include <vm/pmap.h>
-#include <machine/pmap.h>
-#include <machine/resource.h>
-
-static struct rman irq_rman, port_rman, mem_rman;
-
-static int mainbus_probe(device_t);
-static int mainbus_attach(device_t);
-static int mainbus_print_child(device_t, device_t);
-static device_t mainbus_add_child(device_t bus, u_int order, const char *name,
- int unit);
-static struct resource *mainbus_alloc_resource(device_t, device_t, int, int *,
- u_long, u_long, u_long, u_int);
-static int mainbus_activate_resource(device_t, device_t, int, int,
- struct resource *);
-static int mainbus_deactivate_resource(device_t, device_t, int, int,
- struct resource *);
-static int mainbus_release_resource(device_t, device_t, int, int,
- struct resource *);
-static int mainbus_setup_intr(device_t, device_t, struct resource *,
- int flags, driver_filter_t, void (*)(void *), void *, void **);
-static int mainbus_teardown_intr(device_t, device_t, struct resource *,
- void *);
-
-static device_method_t mainbus_methods[] = {
- /* Device interface */
- DEVMETHOD(device_probe, mainbus_probe),
- DEVMETHOD(device_attach, mainbus_attach),
- DEVMETHOD(device_detach, bus_generic_detach),
- DEVMETHOD(device_shutdown, bus_generic_shutdown),
- DEVMETHOD(device_suspend, bus_generic_suspend),
- DEVMETHOD(device_resume, bus_generic_resume),
-
- /* Bus interface */
- DEVMETHOD(bus_print_child, mainbus_print_child),
- DEVMETHOD(bus_add_child, mainbus_add_child),
- DEVMETHOD(bus_read_ivar, bus_generic_read_ivar),
- DEVMETHOD(bus_write_ivar, bus_generic_write_ivar),
- DEVMETHOD(bus_alloc_resource, mainbus_alloc_resource),
- DEVMETHOD(bus_release_resource, mainbus_release_resource),
- DEVMETHOD(bus_activate_resource, mainbus_activate_resource),
- DEVMETHOD(bus_deactivate_resource, mainbus_deactivate_resource),
- DEVMETHOD(bus_setup_intr, mainbus_setup_intr),
- DEVMETHOD(bus_teardown_intr, mainbus_teardown_intr),
-
- { 0, 0 }
-};
-
-static driver_t mainbus_driver = {
- "mainbus",
- mainbus_methods,
- 1, /* no softc */
-};
-static devclass_t mainbus_devclass;
-
-DRIVER_MODULE(mainbus, root, mainbus_driver, mainbus_devclass, 0, 0);
-
-static int
-mainbus_probe(device_t dev)
-{
-
-#ifdef DEBUG_BRINGUP
- device_verbose(dev); /* print attach message */
-#else
- device_quiet(dev); /* suppress attach message for neatness */
-#endif
-
- irq_rman.rm_start = 0;
- irq_rman.rm_type = RMAN_ARRAY;
- irq_rman.rm_descr = "Interrupt request lines";
- irq_rman.rm_end = 15;
- if (rman_init(&irq_rman) ||
- rman_manage_region(&irq_rman, irq_rman.rm_start, irq_rman.rm_end))
- panic("mainbus_probe irq_rman");
-
- /*
- * IO ports and Memory truely are global at this level,
- * as are APIC interrupts (however many IO APICS there turn out
- * to be on large systems..)
- */
- port_rman.rm_start = 0;
- port_rman.rm_end = 0xffff;
- port_rman.rm_type = RMAN_ARRAY;
- port_rman.rm_descr = "I/O ports";
- if (rman_init(&port_rman) || rman_manage_region(&port_rman, 0, 0xffff))
- panic("mainbus_probe port_rman");
-
- mem_rman.rm_start = 0;
- mem_rman.rm_end = ~0ul;
- mem_rman.rm_type = RMAN_ARRAY;
- mem_rman.rm_descr = "I/O memory addresses";
- if (rman_init(&mem_rman) || rman_manage_region(&mem_rman, 0, ~0))
- panic("mainbus_probe mem_rman");
-
- return bus_generic_probe(dev);
-}
-
-static int
-mainbus_attach(device_t dev)
-{
- /*
- * First, deal with the children we know about already
- */
- bus_generic_attach(dev);
-
- return 0;
-}
-
-static int
-mainbus_print_child(device_t bus, device_t child)
-{
- int retval = 0;
-
- retval += bus_print_child_header(bus, child);
- retval += printf(" on motherboard\n");
-
- return (retval);
-}
-
-static device_t
-mainbus_add_child(device_t bus, u_int order, const char *name, int unit)
-{
- return device_add_child_ordered(bus, order, name, unit);
-}
-
-/*
- * Allocate a resource on behalf of child. NB: child is usually going to be a
- * child of one of our descendants, not a direct child of mainbus0.
- * (Exceptions include npx.)
- */
-static struct resource *
-mainbus_alloc_resource(device_t bus, device_t child, int type, int *rid,
- u_long start, u_long end, u_long count, u_int flags)
-{
- struct resource *rv;
- struct rman *rm;
- int needactivate = flags & RF_ACTIVE;
-
- flags &= ~RF_ACTIVE;
-
- switch (type) {
- case SYS_RES_IRQ:
- rm = &irq_rman;
- break;
-
- case SYS_RES_DRQ:
- return 0;
-
- case SYS_RES_IOPORT:
- rm = &port_rman;
- break;
-
- case SYS_RES_MEMORY:
- rm = &mem_rman;
- break;
-
- default:
- return 0;
- }
-
- rv = rman_reserve_resource(rm, start, end, count, flags, child);
-
- if (rv == 0) {
- printf("mainbus_alloc_resource: no resource is available\n");
- return 0;
- }
-
- if (type == SYS_RES_MEMORY) {
- rman_set_bustag(rv, MIPS_BUS_SPACE_MEM);
-
- } else if (type == SYS_RES_IOPORT) {
- rman_set_bustag(rv, MIPS_BUS_SPACE_IO);
- /* IBM-PC: the type of bus_space_handle_t is u_int */
- rman_set_bushandle(rv, rman_get_start(rv));
- }
-
- if (needactivate) {
- if (bus_activate_resource(child, type, *rid, rv)) {
- rman_release_resource(rv);
- return 0;
- }
- }
-
- return rv;
-}
-
-static int
-mainbus_activate_resource(device_t bus, device_t child, int type, int rid,
- struct resource *r)
-{
- /*
- * If this is a memory resource, map it into the kernel.
- */
-#ifdef CPU_CNMIPS
- uint64_t temp;
-#endif
- if (rman_get_bustag(r) == MIPS_BUS_SPACE_MEM) {
- caddr_t vaddr = 0;
- {
- u_int32_t paddr, psize, poffs;
-
- paddr = rman_get_start(r);
- psize = rman_get_size(r);
-
- poffs = paddr - trunc_page(paddr);
- vaddr = (caddr_t) pmap_mapdev(paddr-poffs, psize+poffs)
- + poffs;
- }
- rman_set_virtual(r, vaddr);
-#ifdef CPU_CNMIPS
- temp = 0x0000000000000000;
- temp |= (uint32_t)vaddr;
- rman_set_bushandle(r, (bus_space_handle_t) temp);
-#else
- rman_set_bushandle(r, (bus_space_handle_t) vaddr);
-#endif
- }
- return (rman_activate_resource(r));
-}
-
-static int
-mainbus_deactivate_resource(device_t bus, device_t child, int type, int rid,
- struct resource *r)
-{
- /*
- * If this is a memory resource, unmap it.
- */
- if ((rman_get_bustag(r) == MIPS_BUS_SPACE_MEM) && (rman_get_end(r) >=
- 1024 * 1024)) {
- u_int32_t psize;
-
- psize = rman_get_size(r);
- pmap_unmapdev((vm_offset_t)rman_get_virtual(r), psize);
- }
-
- return (rman_deactivate_resource(r));
-}
-
-static int
-mainbus_release_resource(device_t bus, device_t child, int type, int rid,
- struct resource *r)
-{
- if (rman_get_flags(r) & RF_ACTIVE) {
- int error = bus_deactivate_resource(child, type, rid, r);
- if (error)
- return error;
- }
- return (rman_release_resource(r));
-}
-
-/*
- * Currently this uses the really grody interface from kern/kern_intr.c
- * (which really doesn't belong in kern/anything.c). Eventually, all of
- * the code in kern_intr.c and machdep_intr.c should get moved here, since
- * this is going to be the official interface.
- *
- * Set up handler for external interrupt events.
- * Use CR_INT_<n> to select the proper interrupt
- * condition to dispatch on.
- */
-static int
-mainbus_setup_intr(device_t bus, device_t child, struct resource *irq,
- int flags, driver_filter_t filter, void (*ihand)(void *), void *arg,
- void **cookiep)
-{
- panic("can never mainbus_setup_intr");
-}
-
-static int
-mainbus_teardown_intr(device_t dev, device_t child, struct resource *r,
- void *ih)
-{
- panic("can never mainbus_teardown_intr");
-}