93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*-
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* Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/smp.h>
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#include <machine/smp.h>
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#include <machine/fdt.h>
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#include <machine/intr.h>
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#define EXYNOS_SYSRAM 0x02020000
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void mpentry(void);
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void mptramp(void);
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void
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platform_mp_init_secondary(void)
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{
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gic_init_secondary();
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}
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void
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platform_mp_setmaxid(void)
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{
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mp_maxid = 1;
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}
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int
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platform_mp_probe(void)
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{
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mp_ncpus = 2;
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return (1);
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}
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void
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platform_mp_start_ap(void)
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{
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bus_addr_t sysram;
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int err;
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err = bus_space_map(fdtbus_bs_tag, EXYNOS_SYSRAM, 0x100, 0, &sysram);
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if (err != 0)
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panic("Couldn't map sysram\n");
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bus_space_write_4(fdtbus_bs_tag, sysram, 0x0,
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pmap_kextract((vm_offset_t)mpentry));
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cpu_idcache_wbinv_all();
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cpu_l2cache_wbinv_all();
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armv7_sev();
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bus_space_unmap(fdtbus_bs_tag, sysram, 0x100);
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}
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void
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platform_ipi_send(cpuset_t cpus, u_int ipi)
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{
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pic_ipi_send(cpus, ipi);
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}
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