2 * Copyright (c) 2010 Nathan Whitehorn
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
36 #include <sys/reboot.h>
42 #include <machine/bus.h>
43 #include <machine/cpu.h>
44 #include <machine/hid.h>
45 #include <machine/platform.h>
46 #include <machine/platformvar.h>
47 #include <machine/pmap.h>
48 #include <machine/smp.h>
49 #include <machine/spr.h>
50 #include <machine/vmparam.h>
52 #include "platform_if.h"
53 #include "ps3-hvcall.h"
59 static int ps3_probe(platform_t);
60 static int ps3_attach(platform_t);
61 static void ps3_mem_regions(platform_t, struct mem_region *phys, int *physsz,
62 struct mem_region *avail, int *availsz);
63 static vm_offset_t ps3_real_maxaddr(platform_t);
64 static u_long ps3_timebase_freq(platform_t, struct cpuref *cpuref);
66 static int ps3_smp_first_cpu(platform_t, struct cpuref *cpuref);
67 static int ps3_smp_next_cpu(platform_t, struct cpuref *cpuref);
68 static int ps3_smp_get_bsp(platform_t, struct cpuref *cpuref);
69 static int ps3_smp_start_cpu(platform_t, struct pcpu *cpu);
70 static struct cpu_group *ps3_smp_topo(platform_t);
72 static void ps3_reset(platform_t);
73 static void ps3_cpu_idle(sbintime_t);
75 static platform_method_t ps3_methods[] = {
76 PLATFORMMETHOD(platform_probe, ps3_probe),
77 PLATFORMMETHOD(platform_attach, ps3_attach),
78 PLATFORMMETHOD(platform_mem_regions, ps3_mem_regions),
79 PLATFORMMETHOD(platform_real_maxaddr, ps3_real_maxaddr),
80 PLATFORMMETHOD(platform_timebase_freq, ps3_timebase_freq),
83 PLATFORMMETHOD(platform_smp_first_cpu, ps3_smp_first_cpu),
84 PLATFORMMETHOD(platform_smp_next_cpu, ps3_smp_next_cpu),
85 PLATFORMMETHOD(platform_smp_get_bsp, ps3_smp_get_bsp),
86 PLATFORMMETHOD(platform_smp_start_cpu, ps3_smp_start_cpu),
87 PLATFORMMETHOD(platform_smp_topo, ps3_smp_topo),
90 PLATFORMMETHOD(platform_reset, ps3_reset),
95 static platform_def_t ps3_platform = {
101 PLATFORM_DEF(ps3_platform);
104 ps3_probe(platform_t plat)
107 return (BUS_PROBE_NOWILDCARD);
111 ps3_attach(platform_t plat)
115 struct mem_region avail_regions[2];
117 ps3_mem_regions(plat, NULL, NULL, avail_regions, &count);
119 lv1_allocate_memory(avail_regions[1].mr_size, 24 /* 16 MB pages */,
120 0, 0x04 /* any address */, &avail_regions[1].mr_start, &junk);
122 pmap_mmu_install("mmu_ps3", BUS_PROBE_SPECIFIC);
123 cpu_idle_hook = ps3_cpu_idle;
125 /* Set a breakpoint to make NULL an invalid address */
126 lv1_set_dabr(0x7 /* read and write, MMU on */, 2 /* kernel accesses */);
132 ps3_mem_regions(platform_t plat, struct mem_region *phys, int *physsz,
133 struct mem_region *avail_regions, int *availsz)
135 uint64_t lpar_id, junk, ppe_id;
137 /* Get real mode memory region */
138 avail_regions[0].mr_start = 0;
139 lv1_get_logical_partition_id(&lpar_id);
140 lv1_get_logical_ppe_id(&ppe_id);
141 lv1_get_repository_node_value(lpar_id,
142 lv1_repository_string("bi") >> 32, lv1_repository_string("pu"),
143 ppe_id, lv1_repository_string("rm_size"),
144 &avail_regions[0].mr_size, &junk);
146 /* Now get extended memory region */
147 lv1_get_repository_node_value(lpar_id,
148 lv1_repository_string("bi") >> 32,
149 lv1_repository_string("rgntotal"), 0, 0,
150 &avail_regions[1].mr_size, &junk);
152 /* Convert to maximum amount we can allocate in 16 MB pages */
153 avail_regions[1].mr_size -= avail_regions[0].mr_size;
154 avail_regions[1].mr_size -= avail_regions[1].mr_size % (16*1024*1024);
158 memcpy(phys, avail_regions, sizeof(*phys)*2);
164 ps3_timebase_freq(platform_t plat, struct cpuref *cpuref)
166 uint64_t ticks, node_id, junk;
168 lv1_get_repository_node_value(PS3_LPAR_ID_PME,
169 lv1_repository_string("be") >> 32, 0, 0, 0, &node_id, &junk);
170 lv1_get_repository_node_value(PS3_LPAR_ID_PME,
171 lv1_repository_string("be") >> 32, node_id,
172 lv1_repository_string("clock"), 0, &ticks, &junk);
179 ps3_smp_first_cpu(platform_t plat, struct cpuref *cpuref)
182 cpuref->cr_cpuid = 0;
183 cpuref->cr_hwref = cpuref->cr_cpuid;
189 ps3_smp_next_cpu(platform_t plat, struct cpuref *cpuref)
192 if (cpuref->cr_cpuid >= 1)
196 cpuref->cr_hwref = cpuref->cr_cpuid;
202 ps3_smp_get_bsp(platform_t plat, struct cpuref *cpuref)
205 cpuref->cr_cpuid = 0;
206 cpuref->cr_hwref = cpuref->cr_cpuid;
212 ps3_smp_start_cpu(platform_t plat, struct pcpu *pc)
214 /* loader(8) is spinning on 0x40 == 0 right now */
215 uint32_t *secondary_spin_sem = (uint32_t *)(0x40);
218 if (pc->pc_hwref != 1)
222 *secondary_spin_sem = 1;
227 while (!pc->pc_awake && timeout--)
230 return ((pc->pc_awake) ? 0 : EBUSY);
233 static struct cpu_group *
234 ps3_smp_topo(platform_t plat)
236 return (smp_topo_1level(CG_SHARE_L1, 2, CG_FLAG_SMT));
241 ps3_reset(platform_t plat)
247 ps3_real_maxaddr(platform_t plat)
249 struct mem_region *phys, *avail;
252 mem_regions(&phys, &nphys, &avail, &navail);
254 return (phys[0].mr_start + phys[0].mr_size);
258 ps3_cpu_idle(sbintime_t sbt)