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Remove the GXEMUL support.

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gxemul was a nice stop-gap while qemu support for mips was firmed
up. Now MALTA* + qemu is the platform of choice retire gxemul support.
It's unknown when this was last confirmed working.

Discussed on: freebsd-mips@
Differential Revision: https://reviews.freebsd.org/D18543
This commit is contained in:
Warner Losh 2018-12-19 22:54:23 +00:00
parent 0bb183ed8d
commit a9ab417679
7 changed files with 0 additions and 450 deletions
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64
sys/mips/conf/GXEMUL
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#
# GXEMUL "oldtestmips" sample kernel configuration.
#
# $FreeBSD$
#
ident GXEMUL
machine mips mips64
cpu CPU_MIPS4KC
options HZ=100
makeoptions ARCH_FLAGS="-march=mips64 -mabi=64"
makeoptions KERNLOADADDR=0xffffffff80100000
include "../gxemul/std.gxemul"
hints "GXEMUL.hints" #Default places to look for devices.
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
makeoptions MODULES_OVERRIDE=""
options DDB
options KDB
# Make an SMP-capable kernel by default
options SMP # Symmetric MultiProcessor Kernel
options SCHED_ULE
options VIMAGE # Subsystem virtualization, e.g. VNET
options INET # InterNETworking
options INET6 # IPv6 communications protocols
options TCP_HHOOK # hhook(9) framework for TCP
options FFS #Berkeley Fast Filesystem
# Debugging for use in -current
#options DEADLKRES #Enable the deadlock resolver
options INVARIANTS #Enable calls of extra sanity checking
options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS
#options WITNESS #Enable checks to detect deadlocks and cycles
#options WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed
options ROOTDEVNAME=\"ufs:gxemul_disk0\"
device gxemul_cons
device gxemul_disk
device gxemul_ether
# Pseudo devices.
device loop # Network loopback
device random # Entropy device
device ether # Ethernet support
device tun # Packet tunnel.
device md # Memory "disks"
device gif # IPv6 and IPv4 tunneling
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter

1
sys/mips/conf/GXEMUL.hints
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# $FreeBSD$

62
sys/mips/conf/GXEMUL32
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#
# GXEMUL "oldtestmips" sample kernel configuration.
#
# $FreeBSD$
#
ident GXEMUL
machine mips mips
cpu CPU_MIPS4KC
options HZ=100
makeoptions KERNLOADADDR=0x80100000
include "../gxemul/std.gxemul"
hints "GXEMUL.hints" #Default places to look for devices.
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
makeoptions MODULES_OVERRIDE=""
options DDB
options KDB
# Make an SMP-capable kernel by default
options SMP # Symmetric MultiProcessor Kernel
options SCHED_ULE
options VIMAGE # Subsystem virtualization, e.g. VNET
options INET # InterNETworking
options INET6 # IPv6 communications protocols
options TCP_HHOOK # hhook(9) framework for TCP
options FFS #Berkeley Fast Filesystem
# Debugging for use in -current
#options DEADLKRES #Enable the deadlock resolver
options INVARIANTS #Enable calls of extra sanity checking
options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS
#options WITNESS #Enable checks to detect deadlocks and cycles
#options WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed
options ROOTDEVNAME=\"ufs:gxemul_disk0\"
device gxemul_cons
device gxemul_disk
device gxemul_ether
# Pseudo devices.
device loop # Network loopback
device random # Entropy device
device ether # Ethernet support
device tun # Packet tunnel.
device md # Memory "disks"
device gif # IPv6 and IPv4 tunneling
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter

8
sys/mips/gxemul/files.gxemul
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# $FreeBSD$
dev/gxemul/cons/gxemul_cons.c optional gxemul_cons
mips/gxemul/gxemul_machdep.c standard
mips/mips/intr_machdep.c standard
mips/mips/tick.c standard
dev/gxemul/disk/gxemul_disk.c optional gxemul_disk
dev/gxemul/ether/if_gx.c optional gxemul_ether

247
sys/mips/gxemul/gxemul_machdep.c
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2006 Wojciech A. Koszek <wkoszek@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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_ddb.h"
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/imgact.h>
#include <sys/bio.h>
#include <sys/buf.h>
#include <sys/bus.h>
#include <sys/cpu.h>
#include <sys/cons.h>
#include <sys/exec.h>
#include <sys/ucontext.h>
#include <sys/proc.h>
#include <sys/kdb.h>
#include <sys/ptrace.h>
#include <sys/reboot.h>
#include <sys/signalvar.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/user.h>
#include <vm/vm.h>
#include <vm/vm_object.h>
#include <vm/vm_page.h>
#include <machine/clock.h>
#include <machine/cpu.h>
#include <machine/cpuregs.h>
#include <machine/hwfunc.h>
#include <machine/md_var.h>
#include <machine/pmap.h>
#include <machine/trap.h>
#ifdef SMP
#include <sys/smp.h>
#include <machine/smp.h>
#endif
#include <mips/gxemul/mpreg.h>
extern int *edata;
extern int *end;
void
platform_cpu_init()
{
/* Nothing special */
}
static void
mips_init(void)
{
int i;
for (i = 0; i < 10; i++) {
phys_avail[i] = 0;
}
/* phys_avail regions are in bytes */
phys_avail[0] = MIPS_KSEG0_TO_PHYS(kernel_kseg0_end);
phys_avail[1] = ctob(realmem);
dump_avail[0] = phys_avail[0];
dump_avail[1] = phys_avail[1];
physmem = realmem;
init_param1();
init_param2(physmem);
mips_cpu_init();
pmap_bootstrap();
mips_proc0_init();
mutex_init();
kdb_init();
#ifdef KDB
if (boothowto & RB_KDB)
kdb_enter(KDB_WHY_BOOTFLAGS, "Boot flags requested debugger");
#endif
}
/*
* Perform a board-level soft-reset.
*
* XXXRW: Does gxemul have a moral equivalent to board-level reset?
*/
void
platform_reset(void)
{
panic("%s: not yet", __func__);
}
void
platform_start(__register_t a0, __register_t a1, __register_t a2,
__register_t a3)
{
vm_offset_t kernend;
uint64_t platform_counter_freq;
int argc = a0;
char **argv = (char **)a1;
char **envp = (char **)a2;
int i;
/* clear the BSS and SBSS segments */
kernend = (vm_offset_t)&end;
memset(&edata, 0, kernend - (vm_offset_t)(&edata));
mips_postboot_fixup();
mips_pcpu0_init();
/*
* XXXRW: Support for the gxemul real-time clock required in order to
* usefully determine our emulated timer frequency. Go with something
* classic as the default in the mean time.
*/
platform_counter_freq = MIPS_DEFAULT_HZ;
mips_timer_early_init(platform_counter_freq);
cninit();
printf("entry: platform_start()\n");
bootverbose = 1;
if (bootverbose) {
printf("cmd line: ");
for (i = 0; i < argc; i++)
printf("%s ", argv[i]);
printf("\n");
if (envp != NULL) {
printf("envp:\n");
for (i = 0; envp[i]; i += 2)
printf("\t%s = %s\n", envp[i], envp[i+1]);
} else {
printf("no envp.\n");
}
}
realmem = btoc(GXEMUL_MP_DEV_READ(GXEMUL_MP_DEV_MEMORY));
mips_init();
mips_timer_init_params(platform_counter_freq, 0);
}
#ifdef SMP
void
platform_ipi_send(int cpuid)
{
GXEMUL_MP_DEV_WRITE(GXEMUL_MP_DEV_IPI_ONE, (1 << 16) | cpuid);
}
void
platform_ipi_clear(void)
{
GXEMUL_MP_DEV_WRITE(GXEMUL_MP_DEV_IPI_READ, 0);
}
int
platform_ipi_hardintr_num(void)
{
return (GXEMUL_MP_DEV_IPI_INTERRUPT - 2);
}
int
platform_ipi_softintr_num(void)
{
return (-1);
}
struct cpu_group *
platform_smp_topo(void)
{
return (smp_topo_none());
}
void
platform_init_ap(int cpuid)
{
int ipi_int_mask, clock_int_mask;
/*
* Unmask the clock and ipi interrupts.
*/
clock_int_mask = hard_int_mask(5);
ipi_int_mask = hard_int_mask(platform_ipi_hardintr_num());
set_intr_mask(ipi_int_mask | clock_int_mask);
}
void
platform_cpu_mask(cpuset_t *mask)
{
unsigned i, n;
n = GXEMUL_MP_DEV_READ(GXEMUL_MP_DEV_NCPUS);
CPU_ZERO(mask);
for (i = 0; i < n; i++)
CPU_SET(i, mask);
}
int
platform_processor_id(void)
{
return (GXEMUL_MP_DEV_READ(GXEMUL_MP_DEV_WHOAMI));
}
int
platform_start_ap(int cpuid)
{
GXEMUL_MP_DEV_WRITE(GXEMUL_MP_DEV_STARTADDR, (intptr_t)mpentry);
GXEMUL_MP_DEV_WRITE(GXEMUL_MP_DEV_START, cpuid);
return (0);
}
#endif /* SMP */

64
sys/mips/gxemul/mpreg.h
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2004-2012 Juli Mallett <jmallett@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.
*
* $FreeBSD$
*/
#ifndef _MIPS_GXEMUL_MPREG_H_
#define _MIPS_GXEMUL_MPREG_H_
#define GXEMUL_MP_DEV_BASE 0x11000000
#define GXEMUL_MP_DEV_WHOAMI 0x0000
#define GXEMUL_MP_DEV_NCPUS 0x0010
#define GXEMUL_MP_DEV_START 0x0020
#define GXEMUL_MP_DEV_STARTADDR 0x0030
#define GXEMUL_MP_DEV_STACK 0x0070
#define GXEMUL_MP_DEV_RANDOM 0x0080
#define GXEMUL_MP_DEV_MEMORY 0x0090
#define GXEMUL_MP_DEV_IPI_ONE 0x00a0
#define GXEMUL_MP_DEV_IPI_MANY 0x00b0
#define GXEMUL_MP_DEV_IPI_READ 0x00c0
#define GXEMUL_MP_DEV_CYCLES 0x00d0
#ifdef _LP64
#define GXEMUL_MP_DEV_FUNCTION(f) \
(volatile uint64_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_MP_DEV_BASE + (f))
#define GXEMUL_MP_DEV_READ(f) \
(volatile uint64_t)*GXEMUL_MP_DEV_FUNCTION(f)
#else
#define GXEMUL_MP_DEV_FUNCTION(f) \
(volatile uint32_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_MP_DEV_BASE + (f))
#define GXEMUL_MP_DEV_READ(f) \
(volatile uint32_t)*GXEMUL_MP_DEV_FUNCTION(f)
#endif
#define GXEMUL_MP_DEV_WRITE(f, v) \
*GXEMUL_MP_DEV_FUNCTION(f) = (v)
#define GXEMUL_MP_DEV_IPI_INTERRUPT (6)
#endif /* !_MIPS_GXEMUL_MPREG_H */

4
sys/mips/gxemul/std.gxemul
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# $FreeBSD$
files "../gxemul/files.gxemul"
cpu CPU_MIPS4KC