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/*-
* 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/pmap.h>
#include <machine/smp.h>
#include <machine/spr.h>
#include <machine/vmparam.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 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_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_probe(platform_t plat)
{
return (BUS_PROBE_NOWILDCARD);
}
static int
ps3_attach(platform_t plat)
{
pmap_mmu_install("mmu_ps3", BUS_PROBE_SPECIFIC);
cpu_idle_hook = ps3_cpu_idle;
/* Set a breakpoint to make NULL an invalid address */
lv1_set_dabr(0x7 /* read and write, MMU on */, 2 /* kernel accesses */);
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, ppe_id;
/* Get real mode memory region */
avail_regions[0].mr_start = 0;
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"),
&avail_regions[0].mr_size, &junk);
/* Now get extended memory region */
lv1_get_repository_node_value(lpar_id,
lv1_repository_string("bi") >> 32,
lv1_repository_string("rgntotal"), 0, 0,
&avail_regions[1].mr_size, &junk);
/* Convert to maximum amount we can allocate in 16 MB pages */
avail_regions[1].mr_size -= avail_regions[0].mr_size;
avail_regions[1].mr_size -= avail_regions[1].mr_size % (16*1024*1024);
/* Allocate extended memory region */
lv1_allocate_memory(avail_regions[1].mr_size, 24 /* 16 MB pages */,
0, 0x04 /* any address */, &avail_regions[1].mr_start, &junk);
*availsz = 2;
if (phys != NULL) {
memcpy(phys, avail_regions, sizeof(*phys)*2);
*physsz = 2;
}
}
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 = cpuref->cr_cpuid;
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 = cpuref->cr_cpuid;
return (0);
}
static int
ps3_smp_get_bsp(platform_t plat, struct cpuref *cpuref)
{
cpuref->cr_cpuid = 0;
cpuref->cr_hwref = cpuref->cr_cpuid;
return (0);
}
static int
ps3_smp_start_cpu(platform_t plat, struct pcpu *pc)
{
/* loader(8) is spinning on 0x40 == 0 right now */
uint32_t *secondary_spin_sem = (uint32_t *)(0x40);
int timeout;
if (pc->pc_hwref != 1)
return (ENXIO);
ap_pcpu = pc;
*secondary_spin_sem = 1;
powerpc_sync();
DELAY(1);
timeout = 10000;
while (!pc->pc_awake && timeout--)
DELAY(100);
return ((pc->pc_awake) ? 0 : EBUSY);
}
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)
{
struct mem_region *phys, *avail;
int nphys, navail;
mem_regions(&phys, &nphys, &avail, &navail);
return (phys[0].mr_start + phys[0].mr_size);
}
static void
ps3_cpu_idle(sbintime_t sbt)
{
lv1_pause(0);
}
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