1/*-
2 * Copyright (c) 2013 Ruslan Bukin
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
--- 9 unchanged lines hidden (view full) ---
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/arm/samsung/exynos/exynos5_mp.c 262409 2014-02-23 22:35:18Z ian $");
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/bus.h>
32#include <sys/lock.h>
33#include <sys/mutex.h>
34#include <sys/smp.h>
35
36#include <machine/smp.h>
37#include <machine/fdt.h>
38#include <machine/intr.h>
39
40#define EXYNOS_SYSRAM 0x02020000
41
42void
43platform_mp_init_secondary(void)
44{
45
46 gic_init_secondary();
47}
48
49void
50platform_mp_setmaxid(void)
51{
52
53 mp_maxid = 1;
54}
55
56int
57platform_mp_probe(void)
58{
59
60 mp_ncpus = 2;
61 return (1);
62}
63
64void
65platform_mp_start_ap(void)
66{
67 bus_addr_t sysram;
68 int err;
69
70 err = bus_space_map(fdtbus_bs_tag, EXYNOS_SYSRAM, 0x100, 0, &sysram);
71 if (err != 0)
72 panic("Couldn't map sysram\n");
73
74 bus_space_write_4(fdtbus_bs_tag, sysram, 0x0,
75 pmap_kextract((vm_offset_t)mpentry));
76
77 cpu_idcache_wbinv_all();
78 cpu_l2cache_wbinv_all();
79
80 armv7_sev();
81 bus_space_unmap(fdtbus_bs_tag, sysram, 0x100);
82}
83
84void
85platform_ipi_send(cpuset_t cpus, u_int ipi)
86{
87
88 pic_ipi_send(cpus, ipi);
89}
2 * Copyright (c) 2013 Ruslan Bukin
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
--- 9 unchanged lines hidden (view full) ---
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/arm/samsung/exynos/exynos5_mp.c 262409 2014-02-23 22:35:18Z ian $");
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/bus.h>
32#include <sys/lock.h>
33#include <sys/mutex.h>
34#include <sys/smp.h>
35
36#include <machine/smp.h>
37#include <machine/fdt.h>
38#include <machine/intr.h>
39
40#define EXYNOS_SYSRAM 0x02020000
41
42void
43platform_mp_init_secondary(void)
44{
45
46 gic_init_secondary();
47}
48
49void
50platform_mp_setmaxid(void)
51{
52
53 mp_maxid = 1;
54}
55
56int
57platform_mp_probe(void)
58{
59
60 mp_ncpus = 2;
61 return (1);
62}
63
64void
65platform_mp_start_ap(void)
66{
67 bus_addr_t sysram;
68 int err;
69
70 err = bus_space_map(fdtbus_bs_tag, EXYNOS_SYSRAM, 0x100, 0, &sysram);
71 if (err != 0)
72 panic("Couldn't map sysram\n");
73
74 bus_space_write_4(fdtbus_bs_tag, sysram, 0x0,
75 pmap_kextract((vm_offset_t)mpentry));
76
77 cpu_idcache_wbinv_all();
78 cpu_l2cache_wbinv_all();
79
80 armv7_sev();
81 bus_space_unmap(fdtbus_bs_tag, sysram, 0x100);
82}
83
84void
85platform_ipi_send(cpuset_t cpus, u_int ipi)
86{
87
88 pic_ipi_send(cpus, ipi);
89}