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- /*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 2010 Nathan Whitehorn
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #include <sys/cdefs.h>
- __FBSDID("$FreeBSD$");
- #include <sys/param.h>
- #include <sys/systm.h>
- #include <sys/kernel.h>
- #include <sys/bus.h>
- #include <sys/pcpu.h>
- #include <sys/proc.h>
- #include <sys/reboot.h>
- #include <sys/smp.h>
- #include <vm/vm.h>
- #include <vm/pmap.h>
- #include <machine/bus.h>
- #include <machine/cpu.h>
- #include <machine/hid.h>
- #include <machine/platform.h>
- #include <machine/platformvar.h>
- #include <machine/smp.h>
- #include <machine/spr.h>
- #include <machine/vmparam.h>
- #include <dev/ofw/openfirm.h>
- #include "platform_if.h"
- #include "ps3-hvcall.h"
- #ifdef SMP
- extern void *ap_pcpu;
- #endif
- static int ps3_probe(platform_t);
- static int ps3_attach(platform_t);
- static void ps3_mem_regions(platform_t, struct mem_region *phys, int *physsz,
- struct mem_region *avail, int *availsz);
- static vm_offset_t ps3_real_maxaddr(platform_t);
- static u_long ps3_timebase_freq(platform_t, struct cpuref *cpuref);
- #ifdef SMP
- static int ps3_smp_first_cpu(platform_t, struct cpuref *cpuref);
- static int ps3_smp_next_cpu(platform_t, struct cpuref *cpuref);
- static int ps3_smp_get_bsp(platform_t, struct cpuref *cpuref);
- static int ps3_smp_start_cpu(platform_t, struct pcpu *cpu);
- static void ps3_smp_probe_threads(platform_t);
- static struct cpu_group *ps3_smp_topo(platform_t);
- #endif
- static void ps3_reset(platform_t);
- static void ps3_cpu_idle(sbintime_t);
- static platform_method_t ps3_methods[] = {
- PLATFORMMETHOD(platform_probe, ps3_probe),
- PLATFORMMETHOD(platform_attach, ps3_attach),
- PLATFORMMETHOD(platform_mem_regions, ps3_mem_regions),
- PLATFORMMETHOD(platform_real_maxaddr, ps3_real_maxaddr),
- PLATFORMMETHOD(platform_timebase_freq, ps3_timebase_freq),
- #ifdef SMP
- PLATFORMMETHOD(platform_smp_first_cpu, ps3_smp_first_cpu),
- PLATFORMMETHOD(platform_smp_next_cpu, ps3_smp_next_cpu),
- PLATFORMMETHOD(platform_smp_get_bsp, ps3_smp_get_bsp),
- PLATFORMMETHOD(platform_smp_start_cpu, ps3_smp_start_cpu),
- PLATFORMMETHOD(platform_smp_probe_threads, ps3_smp_probe_threads),
- PLATFORMMETHOD(platform_smp_topo, ps3_smp_topo),
- #endif
- PLATFORMMETHOD(platform_reset, ps3_reset),
- PLATFORMMETHOD_END
- };
- static platform_def_t ps3_platform = {
- "ps3",
- ps3_methods,
- 0
- };
- PLATFORM_DEF(ps3_platform);
- static int ps3_boot_pir = 0;
- static int
- ps3_probe(platform_t plat)
- {
- phandle_t root;
- char compatible[64];
- root = OF_finddevice("/");
- if (OF_getprop(root, "compatible", compatible, sizeof(compatible)) <= 0)
- return (BUS_PROBE_NOWILDCARD);
- if (strncmp(compatible, "sony,ps3", sizeof(compatible)) != 0)
- return (BUS_PROBE_NOWILDCARD);
- return (BUS_PROBE_SPECIFIC);
- }
- static int
- ps3_attach(platform_t plat)
- {
- pmap_mmu_install("mmu_ps3", BUS_PROBE_SPECIFIC);
- cpu_idle_hook = ps3_cpu_idle;
- /* Record our PIR at boot for later */
- ps3_boot_pir = mfspr(SPR_PIR);
- return (0);
- }
- void
- ps3_mem_regions(platform_t plat, struct mem_region *phys, int *physsz,
- struct mem_region *avail_regions, int *availsz)
- {
- uint64_t lpar_id, junk;
- int i;
- /* Prefer device tree information if available */
- if (OF_finddevice("/") != -1) {
- ofw_mem_regions(phys, physsz, avail_regions, availsz);
- } else {
- /* Real mode memory region is first segment */
- phys[0].mr_start = 0;
- phys[0].mr_size = ps3_real_maxaddr(plat);
- *physsz = *availsz = 1;
- avail_regions[0] = phys[0];
- }
- /* Now get extended memory region */
- lv1_get_logical_partition_id(&lpar_id);
- lv1_get_repository_node_value(lpar_id,
- lv1_repository_string("bi") >> 32,
- lv1_repository_string("rgntotal"), 0, 0,
- &phys[*physsz].mr_size, &junk);
- for (i = 0; i < *physsz; i++)
- phys[*physsz].mr_size -= phys[i].mr_size;
- /* Convert to maximum amount we can allocate in 16 MB pages */
- phys[*physsz].mr_size -= phys[*physsz].mr_size % (16*1024*1024);
- /* Allocate extended memory region */
- lv1_allocate_memory(phys[*physsz].mr_size, 24 /* 16 MB pages */,
- 0, 0x04 /* any address */, &phys[*physsz].mr_start, &junk);
- avail_regions[*availsz] = phys[*physsz];
- (*physsz)++;
- (*availsz)++;
- }
- static u_long
- ps3_timebase_freq(platform_t plat, struct cpuref *cpuref)
- {
- uint64_t ticks, node_id, junk;
- lv1_get_repository_node_value(PS3_LPAR_ID_PME,
- lv1_repository_string("be") >> 32, 0, 0, 0, &node_id, &junk);
- lv1_get_repository_node_value(PS3_LPAR_ID_PME,
- lv1_repository_string("be") >> 32, node_id,
- lv1_repository_string("clock"), 0, &ticks, &junk);
- return (ticks);
- }
- #ifdef SMP
- static int
- ps3_smp_first_cpu(platform_t plat, struct cpuref *cpuref)
- {
- cpuref->cr_cpuid = 0;
- cpuref->cr_hwref = ps3_boot_pir;
- return (0);
- }
- static int
- ps3_smp_next_cpu(platform_t plat, struct cpuref *cpuref)
- {
- if (cpuref->cr_cpuid >= 1)
- return (ENOENT);
- cpuref->cr_cpuid++;
- cpuref->cr_hwref = !ps3_boot_pir;
- return (0);
- }
- static int
- ps3_smp_get_bsp(platform_t plat, struct cpuref *cpuref)
- {
- cpuref->cr_cpuid = 0;
- cpuref->cr_hwref = ps3_boot_pir;
- return (0);
- }
- static int
- ps3_smp_start_cpu(platform_t plat, struct pcpu *pc)
- {
- /* kernel is spinning on 0x40 == -1 right now */
- volatile uint32_t *secondary_spin_sem =
- (uint32_t *)PHYS_TO_DMAP((uintptr_t)0x40);
- int remote_pir = pc->pc_hwref;
- int timeout;
- ap_pcpu = pc;
- /* Try both PIR values, looping a few times: the HV likes moving us */
- timeout = 10000;
- while (!pc->pc_awake && timeout--) {
- *secondary_spin_sem = remote_pir;
- powerpc_sync();
- DELAY(100);
- remote_pir = !remote_pir;
- }
- return ((pc->pc_awake) ? 0 : EBUSY);
- }
- static void
- ps3_smp_probe_threads(platform_t plat)
- {
- mp_ncores = 1;
- smp_threads_per_core = 2;
- }
- static struct cpu_group *
- ps3_smp_topo(platform_t plat)
- {
- return (smp_topo_1level(CG_SHARE_L1, 2, CG_FLAG_SMT));
- }
- #endif
- static void
- ps3_reset(platform_t plat)
- {
- lv1_panic(1);
- }
- static vm_offset_t
- ps3_real_maxaddr(platform_t plat)
- {
- uint64_t lpar_id, junk, ppe_id;
- static uint64_t rm_maxaddr = 0;
- if (rm_maxaddr == 0) {
- /* Get real mode memory region */
- lv1_get_logical_partition_id(&lpar_id);
- lv1_get_logical_ppe_id(&ppe_id);
- lv1_get_repository_node_value(lpar_id,
- lv1_repository_string("bi") >> 32,
- lv1_repository_string("pu"),
- ppe_id, lv1_repository_string("rm_size"),
- &rm_maxaddr, &junk);
- }
- return (rm_maxaddr);
- }
- static void
- ps3_cpu_idle(sbintime_t sbt)
- {
- lv1_pause(0);
- }
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