131289e44SAndrew Turner /*- 231289e44SAndrew Turner * Copyright (c) 2015 Andrew Turner 331289e44SAndrew Turner * All rights reserved. 431289e44SAndrew Turner * 531289e44SAndrew Turner * Redistribution and use in source and binary forms, with or without 631289e44SAndrew Turner * modification, are permitted provided that the following conditions 731289e44SAndrew Turner * are met: 831289e44SAndrew Turner * 1. Redistributions of source code must retain the above copyright 931289e44SAndrew Turner * notice, this list of conditions and the following disclaimer. 1031289e44SAndrew Turner * 2. Redistributions in binary form must reproduce the above copyright 1131289e44SAndrew Turner * notice, this list of conditions and the following disclaimer in the 1231289e44SAndrew Turner * documentation and/or other materials provided with the distribution. 1331289e44SAndrew Turner * 1431289e44SAndrew Turner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1531289e44SAndrew Turner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1631289e44SAndrew Turner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1731289e44SAndrew Turner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1831289e44SAndrew Turner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1931289e44SAndrew Turner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2031289e44SAndrew Turner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2131289e44SAndrew Turner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2231289e44SAndrew Turner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2331289e44SAndrew Turner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2431289e44SAndrew Turner * SUCH DAMAGE. 2531289e44SAndrew Turner * 2631289e44SAndrew Turner */ 2731289e44SAndrew Turner 2831289e44SAndrew Turner #include <sys/cdefs.h> 2931289e44SAndrew Turner __FBSDID("$FreeBSD$"); 3031289e44SAndrew Turner 3131289e44SAndrew Turner #include <sys/param.h> 3231289e44SAndrew Turner #include <sys/systm.h> 3331289e44SAndrew Turner #include <sys/bus.h> 3431289e44SAndrew Turner #include <sys/pcpu.h> 3531289e44SAndrew Turner #include <sys/smp.h> 3631289e44SAndrew Turner 3731289e44SAndrew Turner #include <vm/vm.h> 3831289e44SAndrew Turner #include <vm/pmap.h> 3931289e44SAndrew Turner 4031289e44SAndrew Turner #include <machine/intr.h> 41*a19c0b37SAndrew Turner #include <machine/platformvar.h> 4231289e44SAndrew Turner #include <machine/smp.h> 4331289e44SAndrew Turner 4431289e44SAndrew Turner #include <dev/ofw/openfirm.h> 4531289e44SAndrew Turner #include <dev/ofw/ofw_cpu.h> 4631289e44SAndrew Turner #include <dev/psci/psci.h> 4731289e44SAndrew Turner 48*a19c0b37SAndrew Turner #include <arm/qemu/virt_mp.h> 49*a19c0b37SAndrew Turner 5031289e44SAndrew Turner static int running_cpus; 5131289e44SAndrew Turner 5231289e44SAndrew Turner static boolean_t 5331289e44SAndrew Turner virt_maxid(u_int id, phandle_t node, u_int addr_cells, pcell_t *reg) 5431289e44SAndrew Turner { 5531289e44SAndrew Turner 5631289e44SAndrew Turner if (mp_maxid < id) 5731289e44SAndrew Turner mp_maxid = id; 5831289e44SAndrew Turner 5931289e44SAndrew Turner return (true); 6031289e44SAndrew Turner } 6131289e44SAndrew Turner 6231289e44SAndrew Turner void 63*a19c0b37SAndrew Turner virt_mp_setmaxid(platform_t plat) 6431289e44SAndrew Turner { 6531289e44SAndrew Turner 6631289e44SAndrew Turner mp_maxid = PCPU_GET(cpuid); 6727f38a8dSTijl Coosemans mp_ncpus = ofw_cpu_early_foreach(virt_maxid, true); 6827f38a8dSTijl Coosemans if (mp_ncpus < 1) 6927f38a8dSTijl Coosemans mp_ncpus = 1; 70ad3c3dbeSTijl Coosemans mp_ncpus = MIN(mp_ncpus, MAXCPU); 7131289e44SAndrew Turner } 7231289e44SAndrew Turner 7331289e44SAndrew Turner static boolean_t 7431289e44SAndrew Turner virt_start_ap(u_int id, phandle_t node, u_int addr_cells, pcell_t *reg) 7531289e44SAndrew Turner { 7631289e44SAndrew Turner int err; 7731289e44SAndrew Turner 7831289e44SAndrew Turner if (running_cpus >= mp_ncpus) 7931289e44SAndrew Turner return (false); 8031289e44SAndrew Turner running_cpus++; 8131289e44SAndrew Turner 8231289e44SAndrew Turner err = psci_cpu_on(*reg, pmap_kextract((vm_offset_t)mpentry), id); 8331289e44SAndrew Turner 8431289e44SAndrew Turner if (err != PSCI_RETVAL_SUCCESS) 8531289e44SAndrew Turner return (false); 8631289e44SAndrew Turner 8731289e44SAndrew Turner return (true); 8831289e44SAndrew Turner } 8931289e44SAndrew Turner 9031289e44SAndrew Turner void 91*a19c0b37SAndrew Turner virt_mp_start_ap(platform_t plat) 9231289e44SAndrew Turner { 9331289e44SAndrew Turner 9431289e44SAndrew Turner ofw_cpu_early_foreach(virt_start_ap, true); 9531289e44SAndrew Turner } 96