diff options
author | ian <ian@FreeBSD.org> | 2014-05-13 16:50:10 +0000 |
---|---|---|
committer | ian <ian@FreeBSD.org> | 2014-05-13 16:50:10 +0000 |
commit | a7a560a760a6a276a065a0c0adc367a22e77cabb (patch) | |
tree | a1a5563d2b2a4f279a62a077ddb3c095cd9e1c60 /sys/powerpc/aim | |
parent | 9a6f8ee2e65fcdd6d661fcf9db110303abe1c16e (diff) | |
download | FreeBSD-src-a7a560a760a6a276a065a0c0adc367a22e77cabb.zip FreeBSD-src-a7a560a760a6a276a065a0c0adc367a22e77cabb.tar.gz |
MFC r256792, r256793, r256799 (by nwhitehorn): Unify AIM and booke code.
Diffstat (limited to 'sys/powerpc/aim')
-rw-r--r-- | sys/powerpc/aim/clock.c | 271 | ||||
-rw-r--r-- | sys/powerpc/aim/machdep.c | 8 | ||||
-rw-r--r-- | sys/powerpc/aim/nexus.c | 527 | ||||
-rw-r--r-- | sys/powerpc/aim/vm_machdep.c | 413 |
4 files changed, 0 insertions, 1219 deletions
diff --git a/sys/powerpc/aim/clock.c b/sys/powerpc/aim/clock.c deleted file mode 100644 index ae98d26..0000000 --- a/sys/powerpc/aim/clock.c +++ /dev/null @@ -1,271 +0,0 @@ -/*- - * Copyright (C) 1995, 1996 Wolfgang Solfrank. - * Copyright (C) 1995, 1996 TooLs GmbH. - * 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 by TooLs GmbH. - * 4. The name of TooLs GmbH may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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. - * - * $NetBSD: clock.c,v 1.9 2000/01/19 02:52:19 msaitoh Exp $ - */ -/* - * Copyright (C) 2001 Benno Rice. - * 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 Benno Rice ``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 TOOLS GMBH 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> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/bus.h> -#include <sys/interrupt.h> -#include <sys/pcpu.h> -#include <sys/sysctl.h> -#include <sys/timeet.h> -#include <sys/timetc.h> - -#include <dev/ofw/openfirm.h> - -#include <machine/clock.h> -#include <machine/cpu.h> -#include <machine/intr_machdep.h> -#include <machine/md_var.h> -#include <machine/smp.h> - -/* - * Initially we assume a processor with a bus frequency of 12.5 MHz. - */ -static int initialized = 0; -static u_long ns_per_tick = 80; -static u_long ticks_per_sec = 12500000; -static u_long *decr_counts[MAXCPU]; - -static int decr_et_start(struct eventtimer *et, - sbintime_t first, sbintime_t period); -static int decr_et_stop(struct eventtimer *et); -static timecounter_get_t decr_get_timecount; - -struct decr_state { - int mode; /* 0 - off, 1 - periodic, 2 - one-shot. */ - int32_t div; /* Periodic divisor. */ -}; -static DPCPU_DEFINE(struct decr_state, decr_state); - -static struct eventtimer decr_et; -static struct timecounter decr_tc = { - decr_get_timecount, /* get_timecount */ - 0, /* no poll_pps */ - ~0u, /* counter_mask */ - 0, /* frequency */ - "timebase" /* name */ -}; - -/* - * Decrementer interrupt handler. - */ -void -decr_intr(struct trapframe *frame) -{ - struct decr_state *s = DPCPU_PTR(decr_state); - int nticks = 0; - int32_t val; - - if (!initialized) - return; - - (*decr_counts[curcpu])++; - - if (s->mode == 1) { - /* - * Based on the actual time delay since the last decrementer - * reload, we arrange for earlier interrupt next time. - */ - __asm ("mfdec %0" : "=r"(val)); - while (val < 0) { - val += s->div; - nticks++; - } - mtdec(val); - } else if (s->mode == 2) { - nticks = 1; - decr_et_stop(NULL); - } - - while (nticks-- > 0) { - if (decr_et.et_active) - decr_et.et_event_cb(&decr_et, decr_et.et_arg); - } -} - -/* - * BSP early initialization. - */ -void -decr_init(void) -{ - struct cpuref cpu; - char buf[32]; - - /* - * Check the BSP's timebase frequency. Sometimes we can't find the BSP, so fall - * back to the first CPU in this case. - */ - if (platform_smp_get_bsp(&cpu) != 0) - platform_smp_first_cpu(&cpu); - ticks_per_sec = platform_timebase_freq(&cpu); - ns_per_tick = 1000000000 / ticks_per_sec; - - set_cputicker(mftb, ticks_per_sec, 0); - snprintf(buf, sizeof(buf), "cpu%d:decrementer", curcpu); - intrcnt_add(buf, &decr_counts[curcpu]); - decr_et_stop(NULL); - initialized = 1; -} - -#ifdef SMP -/* - * AP early initialization. - */ -void -decr_ap_init(void) -{ - char buf[32]; - - snprintf(buf, sizeof(buf), "cpu%d:decrementer", curcpu); - intrcnt_add(buf, &decr_counts[curcpu]); - decr_et_stop(NULL); -} -#endif - -/* - * Final initialization. - */ -void -decr_tc_init(void) -{ - - decr_tc.tc_frequency = ticks_per_sec; - tc_init(&decr_tc); - decr_et.et_name = "decrementer"; - decr_et.et_flags = ET_FLAGS_PERIODIC | ET_FLAGS_ONESHOT | - ET_FLAGS_PERCPU; - decr_et.et_quality = 1000; - decr_et.et_frequency = ticks_per_sec; - decr_et.et_min_period = (0x00000002LLU << 32) / ticks_per_sec; - decr_et.et_max_period = (0x7fffffffLLU << 32) / ticks_per_sec; - decr_et.et_start = decr_et_start; - decr_et.et_stop = decr_et_stop; - decr_et.et_priv = NULL; - et_register(&decr_et); -} - -/* - * Event timer start method. - */ -static int -decr_et_start(struct eventtimer *et, - sbintime_t first, sbintime_t period) -{ - struct decr_state *s = DPCPU_PTR(decr_state); - uint32_t fdiv; - - if (period != 0) { - s->mode = 1; - s->div = (decr_et.et_frequency * period) >> 32; - } else { - s->mode = 2; - s->div = 0; - } - if (first != 0) { - fdiv = (decr_et.et_frequency * first) >> 32; - } else - fdiv = s->div; - - mtdec(fdiv); - return (0); -} - -/* - * Event timer stop method. - */ -static int -decr_et_stop(struct eventtimer *et) -{ - struct decr_state *s = DPCPU_PTR(decr_state); - - s->mode = 0; - s->div = 0x7fffffff; - mtdec(s->div); - return (0); -} - -/* - * Timecounter get method. - */ -static unsigned -decr_get_timecount(struct timecounter *tc) -{ - register_t tb; - - __asm __volatile("mftb %0" : "=r"(tb)); - return (tb); -} - -/* - * Wait for about n microseconds (at least!). - */ -void -DELAY(int n) -{ - u_quad_t tb, ttb; - - tb = mftb(); - ttb = tb + (n * 1000 + ns_per_tick - 1) / ns_per_tick; - while (tb < ttb) - tb = mftb(); -} - diff --git a/sys/powerpc/aim/machdep.c b/sys/powerpc/aim/machdep.c index 1a9ecbe..6cf3b24 100644 --- a/sys/powerpc/aim/machdep.c +++ b/sys/powerpc/aim/machdep.c @@ -647,14 +647,6 @@ cpu_flush_dcache(void *ptr, size_t len) /* TBD */ } -void -cpu_initclocks(void) -{ - - decr_tc_init(); - cpu_initclocks_bsp(); -} - /* * Shutdown the CPU as much as possible. */ diff --git a/sys/powerpc/aim/nexus.c b/sys/powerpc/aim/nexus.c deleted file mode 100644 index 109ec52..0000000 --- a/sys/powerpc/aim/nexus.c +++ /dev/null @@ -1,527 +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. - */ -/*- - * Copyright 2001 by Thomas Moestl <tmm@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, 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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: FreeBSD: src/sys/i386/i386/nexus.c,v 1.43 2001/02/09 - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/module.h> -#include <sys/bus.h> -#include <sys/cons.h> -#include <sys/kernel.h> -#include <sys/malloc.h> - -#include <dev/ofw/ofw_bus_subr.h> -#include <dev/ofw/openfirm.h> - -#include <machine/bus.h> -#include <machine/frame.h> -#include <machine/intr_machdep.h> -#include <machine/resource.h> - -#include <sys/rman.h> - -#include "ofw_bus_if.h" -#include "pic_if.h" - -/* - * The nexus (which is a pseudo-bus actually) iterates over the nodes that - * exist in Open Firmware and adds them as devices to this bus so that drivers - * can be attached to them. - * - * Maybe this code should get into dev/ofw to some extent, as some of it should - * work for all Open Firmware based machines... - */ - -static MALLOC_DEFINE(M_NEXUS, "nexus", "nexus device information"); - -enum nexus_ivars { - NEXUS_IVAR_NODE, - NEXUS_IVAR_NAME, - NEXUS_IVAR_DEVICE_TYPE, - NEXUS_IVAR_COMPATIBLE, -}; - -struct nexus_devinfo { - phandle_t ndi_node; - /* Some common properties. */ - const char *ndi_name; - const char *ndi_device_type; - const char *ndi_compatible; -}; - -struct nexus_softc { - struct rman sc_rman; -}; - -/* - * Device interface - */ -static int nexus_probe(device_t); -static int nexus_attach(device_t); - -/* - * Bus interface - */ -static device_t nexus_add_child(device_t, u_int, const char *, int); -static void nexus_probe_nomatch(device_t, device_t); -static int nexus_read_ivar(device_t, device_t, int, uintptr_t *); -static int nexus_write_ivar(device_t, device_t, int, uintptr_t); -#ifdef SMP -static int nexus_bind_intr(device_t dev, device_t child, - struct resource *irq, int cpu); -#endif -static int nexus_config_intr(device_t dev, int irq, enum intr_trigger trig, - enum intr_polarity pol); -static int nexus_setup_intr(device_t, device_t, struct resource *, int, - driver_filter_t *, driver_intr_t *, void *, void **); -static int nexus_teardown_intr(device_t, device_t, struct resource *, - void *); -static struct resource *nexus_alloc_resource(device_t, device_t, int, int *, - u_long, u_long, u_long, u_int); -static int nexus_activate_resource(device_t, device_t, int, int, - struct resource *); -static int nexus_deactivate_resource(device_t, device_t, int, int, - struct resource *); -static int nexus_release_resource(device_t, device_t, int, int, - struct resource *); - -/* - * OFW bus interface. - */ -static phandle_t nexus_ofw_get_node(device_t, device_t); -static const char *nexus_ofw_get_name(device_t, device_t); -static const char *nexus_ofw_get_type(device_t, device_t); -static const char *nexus_ofw_get_compat(device_t, device_t); - -/* - * Local routines - */ -static device_t nexus_device_from_node(device_t, phandle_t); - -static device_method_t nexus_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, nexus_probe), - DEVMETHOD(device_attach, nexus_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. Resource management is business of the children... */ - DEVMETHOD(bus_add_child, nexus_add_child), - DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str), - DEVMETHOD(bus_probe_nomatch, nexus_probe_nomatch), - DEVMETHOD(bus_read_ivar, nexus_read_ivar), - DEVMETHOD(bus_write_ivar, nexus_write_ivar), - DEVMETHOD(bus_setup_intr, nexus_setup_intr), - DEVMETHOD(bus_teardown_intr, nexus_teardown_intr), -#ifdef SMP - DEVMETHOD(bus_bind_intr, nexus_bind_intr), -#endif - DEVMETHOD(bus_config_intr, nexus_config_intr), - DEVMETHOD(bus_alloc_resource, nexus_alloc_resource), - DEVMETHOD(bus_activate_resource, nexus_activate_resource), - DEVMETHOD(bus_deactivate_resource, nexus_deactivate_resource), - DEVMETHOD(bus_release_resource, nexus_release_resource), - - /* OFW bus interface */ - DEVMETHOD(ofw_bus_get_node, nexus_ofw_get_node), - DEVMETHOD(ofw_bus_get_name, nexus_ofw_get_name), - DEVMETHOD(ofw_bus_get_type, nexus_ofw_get_type), - DEVMETHOD(ofw_bus_get_compat, nexus_ofw_get_compat), - - DEVMETHOD_END -}; - -static driver_t nexus_driver = { - "nexus", - nexus_methods, - sizeof(struct nexus_softc), -}; - -static devclass_t nexus_devclass; - -EARLY_DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0, - BUS_PASS_BUS); - -static int -nexus_probe(device_t dev) -{ - bus_generic_probe(dev); - device_set_desc(dev, "Open Firmware Nexus device"); - return (0); -} - -static int -nexus_attach(device_t dev) -{ - phandle_t root; - phandle_t child; - struct nexus_softc *sc; - u_long start, end; - - sc = device_get_softc(dev); - - start = 0; - end = ~0; - - sc->sc_rman.rm_start = start; - sc->sc_rman.rm_end = end; - sc->sc_rman.rm_type = RMAN_ARRAY; - sc->sc_rman.rm_descr = "Interrupt request lines"; - if (rman_init(&sc->sc_rman) || - rman_manage_region(&sc->sc_rman, start, end)) - panic("nexus_probe IRQ rman"); - - if ((root = OF_peer(0)) == 0) - return (bus_generic_attach(dev)); - - /* - * Now walk the OFW tree to locate top-level devices - */ - for (child = OF_child(root); child != 0; child = OF_peer(child)) { - if (child == -1) - panic("nexus_probe(): OF_child failed."); - (void)nexus_device_from_node(dev, child); - - } - - return (bus_generic_attach(dev)); -} - -static void -nexus_probe_nomatch(device_t dev, device_t child) -{ - char *name, *type; - - if (BUS_READ_IVAR(dev, child, NEXUS_IVAR_NAME, - (uintptr_t *)&name) != 0 || - BUS_READ_IVAR(dev, child, NEXUS_IVAR_DEVICE_TYPE, - (uintptr_t *)&type) != 0) - return; - - if (type == NULL) - type = "(unknown)"; - - if (bootverbose) - device_printf(dev, "<%s>, type %s (no driver attached)\n", - name, type); -} - -static device_t -nexus_add_child(device_t dev, u_int order, const char *name, int unit) -{ - device_t child; - struct nexus_devinfo *dinfo; - - child = device_add_child_ordered(dev, order, name, unit); - if (child == NULL) - return (NULL); - - dinfo = malloc(sizeof(struct nexus_devinfo), M_NEXUS, M_NOWAIT|M_ZERO); - if (dinfo == NULL) - return (NULL); - - dinfo->ndi_node = -1; - dinfo->ndi_name = name; - device_set_ivars(child, dinfo); - - return (child); -} - - -static int -nexus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) -{ - struct nexus_devinfo *dinfo; - - if ((dinfo = device_get_ivars(child)) == 0) - return (ENOENT); - switch (which) { - case NEXUS_IVAR_NODE: - *result = dinfo->ndi_node; - break; - case NEXUS_IVAR_NAME: - *result = (uintptr_t)dinfo->ndi_name; - break; - case NEXUS_IVAR_DEVICE_TYPE: - *result = (uintptr_t)dinfo->ndi_device_type; - break; - case NEXUS_IVAR_COMPATIBLE: - *result = (uintptr_t)dinfo->ndi_compatible; - break; - default: - return (ENOENT); - } - return 0; -} - -static int -nexus_write_ivar(device_t dev, device_t child, int which, uintptr_t value) -{ - struct nexus_devinfo *dinfo; - - if ((dinfo = device_get_ivars(child)) == 0) - return (ENOENT); - - switch (which) { - case NEXUS_IVAR_NAME: - return (EINVAL); - - /* Identified devices may want to set these */ - case NEXUS_IVAR_NODE: - dinfo->ndi_node = (phandle_t)value; - break; - - case NEXUS_IVAR_DEVICE_TYPE: - dinfo->ndi_device_type = (char *)value; - break; - - default: - return (ENOENT); - } - return 0; -} - -static int -nexus_setup_intr(device_t dev, device_t child, struct resource *res, int flags, - driver_filter_t *filter, driver_intr_t *ihand, void *arg, void **cookiep) -{ - int error; - - /* somebody tried to setup an irq that failed to allocate! */ - if (res == NULL) - panic("nexus_setup_intr: NULL irq resource!"); - - *cookiep = 0; - if ((rman_get_flags(res) & RF_SHAREABLE) == 0) - flags |= INTR_EXCL; - - /* - * We depend here on rman_activate_resource() being idempotent. - */ - error = rman_activate_resource(res); - if (error) - return (error); - - error = powerpc_setup_intr(device_get_nameunit(child), - rman_get_start(res), filter, ihand, arg, flags, cookiep); - - return (error); -} - -static int -nexus_teardown_intr(device_t dev, device_t child, struct resource *res, - void *cookie) -{ - - return (powerpc_teardown_intr(cookie)); -} - -#ifdef SMP -static int -nexus_bind_intr(device_t dev, device_t child, struct resource *irq, int cpu) -{ - - return (powerpc_bind_intr(rman_get_start(irq), cpu)); -} -#endif - -static int -nexus_config_intr(device_t dev, int irq, enum intr_trigger trig, - enum intr_polarity pol) -{ - - return (powerpc_config_intr(irq, trig, pol)); -} - -/* - * Allocate resources at the behest of a child. This only handles interrupts, - * since I/O resources are handled by child busses. - */ -static struct resource * -nexus_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 nexus_softc *sc; - struct resource *rv; - - if (type != SYS_RES_IRQ) { - device_printf(bus, "unknown resource request from %s\n", - device_get_nameunit(child)); - return (NULL); - } - - if (count == 0 || start + count - 1 != end) { - device_printf(bus, "invalid IRQ allocation from %s\n", - device_get_nameunit(child)); - return (NULL); - } - - sc = device_get_softc(bus); - - rv = rman_reserve_resource(&sc->sc_rman, start, end, count, - flags, child); - if (rv == NULL) { - device_printf(bus, "IRQ allocation failed for %s\n", - device_get_nameunit(child)); - } else - rman_set_rid(rv, *rid); - - return (rv); -} - -static int -nexus_activate_resource(device_t bus, device_t child, int type, int rid, - struct resource *res) -{ - - /* Not much to be done yet... */ - return (rman_activate_resource(res)); -} - -static int -nexus_deactivate_resource(device_t bus, device_t child, int type, int rid, - struct resource *res) -{ - - /* Not much to be done yet... */ - return (rman_deactivate_resource(res)); -} - -static int -nexus_release_resource(device_t bus, device_t child, int type, int rid, - struct resource *res) -{ - - if (type != SYS_RES_IRQ) { - device_printf(bus, "unknown resource request from %s\n", - device_get_nameunit(child)); - return (EINVAL); - } - - return (rman_release_resource(res)); -} - -static device_t -nexus_device_from_node(device_t parent, phandle_t node) -{ - device_t cdev; - struct nexus_devinfo *dinfo; - char *name, *type, *compatible; - - OF_getprop_alloc(node, "name", 1, (void **)&name); - OF_getprop_alloc(node, "device_type", 1, (void **)&type); - OF_getprop_alloc(node, "compatible", 1, (void **)&compatible); - cdev = device_add_child(parent, NULL, -1); - if (cdev != NULL) { - dinfo = malloc(sizeof(*dinfo), M_NEXUS, M_WAITOK); - dinfo->ndi_node = node; - dinfo->ndi_name = name; - dinfo->ndi_device_type = type; - dinfo->ndi_compatible = compatible; - device_set_ivars(cdev, dinfo); - } else - free(name, M_OFWPROP); - - return (cdev); -} - -static const char * -nexus_ofw_get_name(device_t bus, device_t dev) -{ - struct nexus_devinfo *dinfo; - - if ((dinfo = device_get_ivars(dev)) == NULL) - return (NULL); - - return (dinfo->ndi_name); -} - -static phandle_t -nexus_ofw_get_node(device_t bus, device_t dev) -{ - struct nexus_devinfo *dinfo; - - if ((dinfo = device_get_ivars(dev)) == NULL) - return (0); - - return (dinfo->ndi_node); -} - -static const char * -nexus_ofw_get_type(device_t bus, device_t dev) -{ - struct nexus_devinfo *dinfo; - - if ((dinfo = device_get_ivars(dev)) == NULL) - return (NULL); - - return (dinfo->ndi_device_type); -} - -static const char * -nexus_ofw_get_compat(device_t bus, device_t dev) -{ - struct nexus_devinfo *dinfo; - - if ((dinfo = device_get_ivars(dev)) == NULL) - return (NULL); - - return (dinfo->ndi_compatible); -} - diff --git a/sys/powerpc/aim/vm_machdep.c b/sys/powerpc/aim/vm_machdep.c deleted file mode 100644 index 21cc8f3..0000000 --- a/sys/powerpc/aim/vm_machdep.c +++ /dev/null @@ -1,413 +0,0 @@ -/*- - * Copyright (c) 1982, 1986 The Regents of the University of California. - * Copyright (c) 1989, 1990 William Jolitz - * Copyright (c) 1994 John Dyson - * All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * the Systems Programming Group of the University of Utah Computer - * Science Department, and William Jolitz. - * - * 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 by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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: @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91 - * Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$ - * $FreeBSD$ - */ -/*- - * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. - * All rights reserved. - * - * Author: Chris G. Demetriou - * - * Permission to use, copy, modify and distribute this software and - * its documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND - * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie the - * rights to redistribute these changes. - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/proc.h> -#include <sys/malloc.h> -#include <sys/bio.h> -#include <sys/buf.h> -#include <sys/ktr.h> -#include <sys/lock.h> -#include <sys/mutex.h> -#include <sys/vnode.h> -#include <sys/vmmeter.h> -#include <sys/kernel.h> -#include <sys/mbuf.h> -#include <sys/sf_buf.h> -#include <sys/sysctl.h> -#include <sys/sysent.h> -#include <sys/unistd.h> - -#include <machine/cpu.h> -#include <machine/fpu.h> -#include <machine/frame.h> -#include <machine/md_var.h> -#include <machine/pcb.h> - -#include <dev/ofw/openfirm.h> - -#include <vm/vm.h> -#include <vm/vm_param.h> -#include <vm/vm_kern.h> -#include <vm/vm_page.h> -#include <vm/vm_map.h> -#include <vm/vm_extern.h> - -/* - * On systems without a direct mapped region (e.g. PPC64), - * we use the same code as the Book E implementation. Since - * we need to have runtime detection of this, define some machinery - * for sf_bufs in this case, and ignore it on systems with direct maps. - */ - -#ifndef NSFBUFS -#define NSFBUFS (512 + maxusers * 16) -#endif - -static int nsfbufs; -static int nsfbufspeak; -static int nsfbufsused; - -SYSCTL_INT(_kern_ipc, OID_AUTO, nsfbufs, CTLFLAG_RDTUN, &nsfbufs, 0, - "Maximum number of sendfile(2) sf_bufs available"); -SYSCTL_INT(_kern_ipc, OID_AUTO, nsfbufspeak, CTLFLAG_RD, &nsfbufspeak, 0, - "Number of sendfile(2) sf_bufs at peak usage"); -SYSCTL_INT(_kern_ipc, OID_AUTO, nsfbufsused, CTLFLAG_RD, &nsfbufsused, 0, - "Number of sendfile(2) sf_bufs in use"); - -static void sf_buf_init(void *arg); -SYSINIT(sock_sf, SI_SUB_MBUF, SI_ORDER_ANY, sf_buf_init, NULL); - -LIST_HEAD(sf_head, sf_buf); - -/* A hash table of active sendfile(2) buffers */ -static struct sf_head *sf_buf_active; -static u_long sf_buf_hashmask; - -#define SF_BUF_HASH(m) (((m) - vm_page_array) & sf_buf_hashmask) - -static TAILQ_HEAD(, sf_buf) sf_buf_freelist; -static u_int sf_buf_alloc_want; - -/* - * A lock used to synchronize access to the hash table and free list - */ -static struct mtx sf_buf_lock; - -#ifdef __powerpc64__ -extern uintptr_t tocbase; -#endif - - -/* - * Finish a fork operation, with process p2 nearly set up. - * Copy and update the pcb, set up the stack so that the child - * ready to run and return to user mode. - */ -void -cpu_fork(struct thread *td1, struct proc *p2, struct thread *td2, int flags) -{ - struct trapframe *tf; - struct callframe *cf; - struct pcb *pcb; - - KASSERT(td1 == curthread || td1 == &thread0, - ("cpu_fork: p1 not curproc and not proc0")); - CTR3(KTR_PROC, "cpu_fork: called td1=%p p2=%p flags=%x", - td1, p2, flags); - - if ((flags & RFPROC) == 0) - return; - - pcb = (struct pcb *)((td2->td_kstack + - td2->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb)) & ~0x2fUL); - td2->td_pcb = pcb; - - /* Copy the pcb */ - bcopy(td1->td_pcb, pcb, sizeof(struct pcb)); - - /* - * Create a fresh stack for the new process. - * Copy the trap frame for the return to user mode as if from a - * syscall. This copies most of the user mode register values. - */ - tf = (struct trapframe *)pcb - 1; - bcopy(td1->td_frame, tf, sizeof(*tf)); - - /* Set up trap frame. */ - tf->fixreg[FIRSTARG] = 0; - tf->fixreg[FIRSTARG + 1] = 0; - tf->cr &= ~0x10000000; - - td2->td_frame = tf; - - cf = (struct callframe *)tf - 1; - memset(cf, 0, sizeof(struct callframe)); - #ifdef __powerpc64__ - cf->cf_toc = tocbase; - #endif - cf->cf_func = (register_t)fork_return; - cf->cf_arg0 = (register_t)td2; - cf->cf_arg1 = (register_t)tf; - - pcb->pcb_sp = (register_t)cf; - KASSERT(pcb->pcb_sp % 16 == 0, ("stack misaligned")); - #ifdef __powerpc64__ - pcb->pcb_lr = ((register_t *)fork_trampoline)[0]; - pcb->pcb_toc = ((register_t *)fork_trampoline)[1]; - #else - pcb->pcb_lr = (register_t)fork_trampoline; - #endif - pcb->pcb_cpu.aim.usr_vsid = 0; - - /* Setup to release spin count in fork_exit(). */ - td2->td_md.md_spinlock_count = 1; - td2->td_md.md_saved_msr = PSL_KERNSET; - - /* - * Now cpu_switch() can schedule the new process. - */ -} - -/* - * Intercept the return address from a freshly forked process that has NOT - * been scheduled yet. - * - * This is needed to make kernel threads stay in kernel mode. - */ -void -cpu_set_fork_handler(td, func, arg) - struct thread *td; - void (*func)(void *); - void *arg; -{ - struct callframe *cf; - - CTR4(KTR_PROC, "%s called with td=%p func=%p arg=%p", - __func__, td, func, arg); - - cf = (struct callframe *)td->td_pcb->pcb_sp; - - cf->cf_func = (register_t)func; - cf->cf_arg0 = (register_t)arg; -} - -void -cpu_exit(td) - register struct thread *td; -{ -} - -/* - * Allocate a pool of sf_bufs (sendfile(2) or "super-fast" if you prefer. :-)) - */ -static void -sf_buf_init(void *arg) -{ - struct sf_buf *sf_bufs; - vm_offset_t sf_base; - int i; - - /* Don't bother on systems with a direct map */ - - if (hw_direct_map) - return; - - nsfbufs = NSFBUFS; - TUNABLE_INT_FETCH("kern.ipc.nsfbufs", &nsfbufs); - - sf_buf_active = hashinit(nsfbufs, M_TEMP, &sf_buf_hashmask); - TAILQ_INIT(&sf_buf_freelist); - sf_base = kva_alloc(nsfbufs * PAGE_SIZE); - sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP, M_NOWAIT | M_ZERO); - - for (i = 0; i < nsfbufs; i++) { - sf_bufs[i].kva = sf_base + i * PAGE_SIZE; - TAILQ_INSERT_TAIL(&sf_buf_freelist, &sf_bufs[i], free_entry); - } - sf_buf_alloc_want = 0; - mtx_init(&sf_buf_lock, "sf_buf", NULL, MTX_DEF); -} - -/* - * Get an sf_buf from the freelist. Will block if none are available. - */ -struct sf_buf * -sf_buf_alloc(struct vm_page *m, int flags) -{ - struct sf_head *hash_list; - struct sf_buf *sf; - int error; - - if (hw_direct_map) { - /* Shortcut the direct mapped case */ - - return ((struct sf_buf *)m); - } - - hash_list = &sf_buf_active[SF_BUF_HASH(m)]; - mtx_lock(&sf_buf_lock); - LIST_FOREACH(sf, hash_list, list_entry) { - if (sf->m == m) { - sf->ref_count++; - if (sf->ref_count == 1) { - TAILQ_REMOVE(&sf_buf_freelist, sf, free_entry); - nsfbufsused++; - nsfbufspeak = imax(nsfbufspeak, nsfbufsused); - } - goto done; - } - } - - while ((sf = TAILQ_FIRST(&sf_buf_freelist)) == NULL) { - if (flags & SFB_NOWAIT) - goto done; - - sf_buf_alloc_want++; - SFSTAT_INC(sf_allocwait); - error = msleep(&sf_buf_freelist, &sf_buf_lock, - (flags & SFB_CATCH) ? PCATCH | PVM : PVM, "sfbufa", 0); - sf_buf_alloc_want--; - - /* - * If we got a signal, don't risk going back to sleep. - */ - if (error) - goto done; - } - - TAILQ_REMOVE(&sf_buf_freelist, sf, free_entry); - if (sf->m != NULL) - LIST_REMOVE(sf, list_entry); - - LIST_INSERT_HEAD(hash_list, sf, list_entry); - sf->ref_count = 1; - sf->m = m; - nsfbufsused++; - nsfbufspeak = imax(nsfbufspeak, nsfbufsused); - pmap_qenter(sf->kva, &sf->m, 1); -done: - mtx_unlock(&sf_buf_lock); - return (sf); -} - -/* - * Detatch mapped page and release resources back to the system. - * - * Remove a reference from the given sf_buf, adding it to the free - * list when its reference count reaches zero. A freed sf_buf still, - * however, retains its virtual-to-physical mapping until it is - * recycled or reactivated by sf_buf_alloc(9). - */ -void -sf_buf_free(struct sf_buf *sf) -{ - if (hw_direct_map) - return; - - mtx_lock(&sf_buf_lock); - sf->ref_count--; - if (sf->ref_count == 0) { - TAILQ_INSERT_TAIL(&sf_buf_freelist, sf, free_entry); - nsfbufsused--; - - if (sf_buf_alloc_want > 0) - wakeup(&sf_buf_freelist); - } - mtx_unlock(&sf_buf_lock); -} - -/* - * Software interrupt handler for queued VM system processing. - */ -void -swi_vm(void *dummy) -{ - - if (busdma_swi_pending != 0) - busdma_swi(); -} - -/* - * Tell whether this address is in some physical memory region. - * Currently used by the kernel coredump code in order to avoid - * dumping the ``ISA memory hole'' which could cause indefinite hangs, - * or other unpredictable behaviour. - */ - - -int -is_physical_memory(addr) - vm_offset_t addr; -{ - /* - * stuff other tests for known memory-mapped devices (PCI?) - * here - */ - - return 1; -} - -/* - * CPU threading functions related to the VM layer. These could be used - * to map the SLB bits required for the kernel stack instead of forcing a - * fixed-size KVA. - */ - -void -cpu_thread_swapin(struct thread *td) -{ -} - -void -cpu_thread_swapout(struct thread *td) -{ -} - |