71e3c3083b
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
251 lines
6.3 KiB
C
251 lines
6.3 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright 2010 Nathan Whitehorn
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/intr_machdep.h>
|
|
#include <machine/md_var.h>
|
|
#include <machine/platform.h>
|
|
|
|
#include "ps3-hvcall.h"
|
|
#include "pic_if.h"
|
|
|
|
static void ps3pic_identify(driver_t *driver, device_t parent);
|
|
static int ps3pic_probe(device_t);
|
|
static int ps3pic_attach(device_t);
|
|
|
|
static void ps3pic_dispatch(device_t, struct trapframe *);
|
|
static void ps3pic_enable(device_t, u_int, u_int);
|
|
static void ps3pic_eoi(device_t, u_int);
|
|
static void ps3pic_ipi(device_t, u_int);
|
|
static void ps3pic_mask(device_t, u_int);
|
|
static void ps3pic_unmask(device_t, u_int);
|
|
|
|
struct ps3pic_softc {
|
|
volatile uint64_t *bitmap_thread0;
|
|
volatile uint64_t *mask_thread0;
|
|
volatile uint64_t *bitmap_thread1;
|
|
volatile uint64_t *mask_thread1;
|
|
|
|
uint64_t sc_ipi_outlet[2];
|
|
uint64_t sc_ipi_virq;
|
|
int sc_vector[64];
|
|
};
|
|
|
|
static device_method_t ps3pic_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_identify, ps3pic_identify),
|
|
DEVMETHOD(device_probe, ps3pic_probe),
|
|
DEVMETHOD(device_attach, ps3pic_attach),
|
|
|
|
/* PIC interface */
|
|
DEVMETHOD(pic_dispatch, ps3pic_dispatch),
|
|
DEVMETHOD(pic_enable, ps3pic_enable),
|
|
DEVMETHOD(pic_eoi, ps3pic_eoi),
|
|
DEVMETHOD(pic_ipi, ps3pic_ipi),
|
|
DEVMETHOD(pic_mask, ps3pic_mask),
|
|
DEVMETHOD(pic_unmask, ps3pic_unmask),
|
|
|
|
{ 0, 0 },
|
|
};
|
|
|
|
static driver_t ps3pic_driver = {
|
|
"ps3pic",
|
|
ps3pic_methods,
|
|
sizeof(struct ps3pic_softc)
|
|
};
|
|
|
|
static devclass_t ps3pic_devclass;
|
|
|
|
DRIVER_MODULE(ps3pic, nexus, ps3pic_driver, ps3pic_devclass, 0, 0);
|
|
|
|
static MALLOC_DEFINE(M_PS3PIC, "ps3pic", "PS3 PIC");
|
|
|
|
static void
|
|
ps3pic_identify(driver_t *driver, device_t parent)
|
|
{
|
|
if (strcmp(installed_platform(), "ps3") != 0)
|
|
return;
|
|
|
|
if (device_find_child(parent, "ps3pic", -1) == NULL)
|
|
BUS_ADD_CHILD(parent, 0, "ps3pic", 0);
|
|
}
|
|
|
|
static int
|
|
ps3pic_probe(device_t dev)
|
|
{
|
|
device_set_desc(dev, "Playstation 3 interrupt controller");
|
|
return (BUS_PROBE_NOWILDCARD);
|
|
}
|
|
|
|
static int
|
|
ps3pic_attach(device_t dev)
|
|
{
|
|
struct ps3pic_softc *sc;
|
|
uint64_t ppe;
|
|
int thread;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
sc->bitmap_thread0 = contigmalloc(128 /* 512 bits * 2 */, M_PS3PIC,
|
|
M_NOWAIT | M_ZERO, 0, BUS_SPACE_MAXADDR, 64 /* alignment */,
|
|
PAGE_SIZE /* boundary */);
|
|
sc->mask_thread0 = sc->bitmap_thread0 + 4;
|
|
sc->bitmap_thread1 = sc->bitmap_thread0 + 8;
|
|
sc->mask_thread1 = sc->bitmap_thread0 + 12;
|
|
|
|
lv1_get_logical_ppe_id(&ppe);
|
|
thread = 32 - fls(mfctrl());
|
|
lv1_configure_irq_state_bitmap(ppe, thread,
|
|
vtophys(sc->bitmap_thread0));
|
|
|
|
sc->sc_ipi_virq = 63;
|
|
|
|
#ifdef SMP
|
|
lv1_configure_irq_state_bitmap(ppe, !thread,
|
|
vtophys(sc->bitmap_thread1));
|
|
|
|
/* Map both IPIs to the same VIRQ to avoid changes in intr_machdep */
|
|
lv1_construct_event_receive_port(&sc->sc_ipi_outlet[0]);
|
|
lv1_connect_irq_plug_ext(ppe, thread, sc->sc_ipi_virq,
|
|
sc->sc_ipi_outlet[0], 0);
|
|
lv1_construct_event_receive_port(&sc->sc_ipi_outlet[1]);
|
|
lv1_connect_irq_plug_ext(ppe, !thread, sc->sc_ipi_virq,
|
|
sc->sc_ipi_outlet[1], 0);
|
|
#endif
|
|
|
|
powerpc_register_pic(dev, 0, sc->sc_ipi_virq, 1, FALSE);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* PIC I/F methods.
|
|
*/
|
|
|
|
static void
|
|
ps3pic_dispatch(device_t dev, struct trapframe *tf)
|
|
{
|
|
uint64_t bitmap, mask;
|
|
int irq;
|
|
struct ps3pic_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (PCPU_GET(cpuid) == 0) {
|
|
bitmap = atomic_readandclear_64(&sc->bitmap_thread0[0]);
|
|
mask = sc->mask_thread0[0];
|
|
} else {
|
|
bitmap = atomic_readandclear_64(&sc->bitmap_thread1[0]);
|
|
mask = sc->mask_thread1[0];
|
|
}
|
|
powerpc_sync();
|
|
|
|
while ((irq = ffsl(bitmap & mask) - 1) != -1) {
|
|
bitmap &= ~(1UL << irq);
|
|
powerpc_dispatch_intr(sc->sc_vector[63 - irq], tf);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ps3pic_enable(device_t dev, u_int irq, u_int vector)
|
|
{
|
|
struct ps3pic_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->sc_vector[irq] = vector;
|
|
|
|
ps3pic_unmask(dev, irq);
|
|
}
|
|
|
|
static void
|
|
ps3pic_eoi(device_t dev, u_int irq)
|
|
{
|
|
uint64_t ppe;
|
|
int thread;
|
|
|
|
lv1_get_logical_ppe_id(&ppe);
|
|
thread = 32 - fls(mfctrl());
|
|
|
|
lv1_end_of_interrupt_ext(ppe, thread, irq);
|
|
}
|
|
|
|
static void
|
|
ps3pic_ipi(device_t dev, u_int cpu)
|
|
{
|
|
struct ps3pic_softc *sc;
|
|
sc = device_get_softc(dev);
|
|
|
|
lv1_send_event_locally(sc->sc_ipi_outlet[cpu]);
|
|
}
|
|
|
|
static void
|
|
ps3pic_mask(device_t dev, u_int irq)
|
|
{
|
|
struct ps3pic_softc *sc;
|
|
uint64_t ppe;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
/* Do not mask IPIs! */
|
|
if (irq == sc->sc_ipi_virq)
|
|
return;
|
|
|
|
atomic_clear_64(&sc->mask_thread0[0], 1UL << (63 - irq));
|
|
atomic_clear_64(&sc->mask_thread1[0], 1UL << (63 - irq));
|
|
|
|
lv1_get_logical_ppe_id(&ppe);
|
|
lv1_did_update_interrupt_mask(ppe, 0);
|
|
lv1_did_update_interrupt_mask(ppe, 1);
|
|
}
|
|
|
|
static void
|
|
ps3pic_unmask(device_t dev, u_int irq)
|
|
{
|
|
struct ps3pic_softc *sc;
|
|
uint64_t ppe;
|
|
|
|
sc = device_get_softc(dev);
|
|
atomic_set_64(&sc->mask_thread0[0], 1UL << (63 - irq));
|
|
atomic_set_64(&sc->mask_thread1[0], 1UL << (63 - irq));
|
|
|
|
lv1_get_logical_ppe_id(&ppe);
|
|
lv1_did_update_interrupt_mask(ppe, 0);
|
|
lv1_did_update_interrupt_mask(ppe, 1);
|
|
}
|