2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2010 Nathan Whitehorn
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
38 #include <sys/reboot.h>
44 #include <machine/bus.h>
45 #include <machine/cpu.h>
46 #include <machine/hid.h>
47 #include <machine/platform.h>
48 #include <machine/platformvar.h>
49 #include <machine/smp.h>
50 #include <machine/spr.h>
51 #include <machine/vmparam.h>
53 #include <dev/ofw/openfirm.h>
55 #include "platform_if.h"
56 #include "ps3-hvcall.h"
62 static int ps3_probe(platform_t);
63 static int ps3_attach(platform_t);
64 static void ps3_mem_regions(platform_t, struct mem_region *phys, int *physsz,
65 struct mem_region *avail, int *availsz);
66 static vm_offset_t ps3_real_maxaddr(platform_t);
67 static u_long ps3_timebase_freq(platform_t, struct cpuref *cpuref);
69 static int ps3_smp_first_cpu(platform_t, struct cpuref *cpuref);
70 static int ps3_smp_next_cpu(platform_t, struct cpuref *cpuref);
71 static int ps3_smp_get_bsp(platform_t, struct cpuref *cpuref);
72 static int ps3_smp_start_cpu(platform_t, struct pcpu *cpu);
73 static void ps3_smp_probe_threads(platform_t);
74 static struct cpu_group *ps3_smp_topo(platform_t);
76 static void ps3_reset(platform_t);
77 static void ps3_cpu_idle(sbintime_t);
79 static platform_method_t ps3_methods[] = {
80 PLATFORMMETHOD(platform_probe, ps3_probe),
81 PLATFORMMETHOD(platform_attach, ps3_attach),
82 PLATFORMMETHOD(platform_mem_regions, ps3_mem_regions),
83 PLATFORMMETHOD(platform_real_maxaddr, ps3_real_maxaddr),
84 PLATFORMMETHOD(platform_timebase_freq, ps3_timebase_freq),
87 PLATFORMMETHOD(platform_smp_first_cpu, ps3_smp_first_cpu),
88 PLATFORMMETHOD(platform_smp_next_cpu, ps3_smp_next_cpu),
89 PLATFORMMETHOD(platform_smp_get_bsp, ps3_smp_get_bsp),
90 PLATFORMMETHOD(platform_smp_start_cpu, ps3_smp_start_cpu),
91 PLATFORMMETHOD(platform_smp_probe_threads, ps3_smp_probe_threads),
92 PLATFORMMETHOD(platform_smp_topo, ps3_smp_topo),
95 PLATFORMMETHOD(platform_reset, ps3_reset),
100 static platform_def_t ps3_platform = {
106 PLATFORM_DEF(ps3_platform);
108 static int ps3_boot_pir = 0;
111 ps3_probe(platform_t plat)
116 root = OF_finddevice("/");
117 if (OF_getprop(root, "compatible", compatible, sizeof(compatible)) <= 0)
118 return (BUS_PROBE_NOWILDCARD);
120 if (strncmp(compatible, "sony,ps3", sizeof(compatible)) != 0)
121 return (BUS_PROBE_NOWILDCARD);
123 return (BUS_PROBE_SPECIFIC);
127 ps3_attach(platform_t plat)
130 pmap_mmu_install("mmu_ps3", BUS_PROBE_SPECIFIC);
131 cpu_idle_hook = ps3_cpu_idle;
133 /* Record our PIR at boot for later */
134 ps3_boot_pir = mfspr(SPR_PIR);
140 ps3_mem_regions(platform_t plat, struct mem_region *phys, int *physsz,
141 struct mem_region *avail_regions, int *availsz)
143 uint64_t lpar_id, junk;
146 /* Prefer device tree information if available */
147 if (OF_finddevice("/") != -1) {
148 ofw_mem_regions(phys, physsz, avail_regions, availsz);
150 /* Real mode memory region is first segment */
151 phys[0].mr_start = 0;
152 phys[0].mr_size = ps3_real_maxaddr(plat);
153 *physsz = *availsz = 1;
154 avail_regions[0] = phys[0];
157 /* Now get extended memory region */
158 lv1_get_logical_partition_id(&lpar_id);
159 lv1_get_repository_node_value(lpar_id,
160 lv1_repository_string("bi") >> 32,
161 lv1_repository_string("rgntotal"), 0, 0,
162 &phys[*physsz].mr_size, &junk);
163 for (i = 0; i < *physsz; i++)
164 phys[*physsz].mr_size -= phys[i].mr_size;
166 /* Convert to maximum amount we can allocate in 16 MB pages */
167 phys[*physsz].mr_size -= phys[*physsz].mr_size % (16*1024*1024);
169 /* Allocate extended memory region */
170 lv1_allocate_memory(phys[*physsz].mr_size, 24 /* 16 MB pages */,
171 0, 0x04 /* any address */, &phys[*physsz].mr_start, &junk);
172 avail_regions[*availsz] = phys[*physsz];
178 ps3_timebase_freq(platform_t plat, struct cpuref *cpuref)
180 uint64_t ticks, node_id, junk;
182 lv1_get_repository_node_value(PS3_LPAR_ID_PME,
183 lv1_repository_string("be") >> 32, 0, 0, 0, &node_id, &junk);
184 lv1_get_repository_node_value(PS3_LPAR_ID_PME,
185 lv1_repository_string("be") >> 32, node_id,
186 lv1_repository_string("clock"), 0, &ticks, &junk);
193 ps3_smp_first_cpu(platform_t plat, struct cpuref *cpuref)
196 cpuref->cr_cpuid = 0;
197 cpuref->cr_hwref = ps3_boot_pir;
203 ps3_smp_next_cpu(platform_t plat, struct cpuref *cpuref)
206 if (cpuref->cr_cpuid >= 1)
210 cpuref->cr_hwref = !ps3_boot_pir;
216 ps3_smp_get_bsp(platform_t plat, struct cpuref *cpuref)
219 cpuref->cr_cpuid = 0;
220 cpuref->cr_hwref = ps3_boot_pir;
226 ps3_smp_start_cpu(platform_t plat, struct pcpu *pc)
228 /* kernel is spinning on 0x40 == -1 right now */
229 volatile uint32_t *secondary_spin_sem =
230 (uint32_t *)PHYS_TO_DMAP((uintptr_t)0x40);
231 int remote_pir = pc->pc_hwref;
236 /* Try both PIR values, looping a few times: the HV likes moving us */
238 while (!pc->pc_awake && timeout--) {
239 *secondary_spin_sem = remote_pir;
242 remote_pir = !remote_pir;
245 return ((pc->pc_awake) ? 0 : EBUSY);
249 ps3_smp_probe_threads(platform_t plat)
252 smp_threads_per_core = 2;
255 static struct cpu_group *
256 ps3_smp_topo(platform_t plat)
258 return (smp_topo_1level(CG_SHARE_L1, 2, CG_FLAG_SMT));
263 ps3_reset(platform_t plat)
269 ps3_real_maxaddr(platform_t plat)
271 uint64_t lpar_id, junk, ppe_id;
272 static uint64_t rm_maxaddr = 0;
274 if (rm_maxaddr == 0) {
275 /* Get real mode memory region */
276 lv1_get_logical_partition_id(&lpar_id);
277 lv1_get_logical_ppe_id(&ppe_id);
279 lv1_get_repository_node_value(lpar_id,
280 lv1_repository_string("bi") >> 32,
281 lv1_repository_string("pu"),
282 ppe_id, lv1_repository_string("rm_size"),
290 ps3_cpu_idle(sbintime_t sbt)