c2aa4fc0eb
available on firmwares 3.15 and earlier. Caveats: Support for the internal SATA controller is currently missing, as is support for framebuffer resolutions other than 720x480. These deficiencies will be remedied soon. Special thanks to Peter Grehan for providing the hardware that made this port possible, and thanks to Geoff Levand of Sony Computer Entertainment for advice on the LV1 hypervisor.
255 lines
6.2 KiB
C
255 lines
6.2 KiB
C
/*-
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* Copyright 2010 Nathan Whitehorn
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/bus.h>
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#include <machine/intr_machdep.h>
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#include <machine/md_var.h>
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#include <machine/platform.h>
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#include "ps3-hvcall.h"
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#include "pic_if.h"
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static void ps3pic_identify(driver_t *driver, device_t parent);
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static int ps3pic_probe(device_t);
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static int ps3pic_attach(device_t);
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static void ps3pic_dispatch(device_t, struct trapframe *);
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static void ps3pic_enable(device_t, u_int, u_int);
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static void ps3pic_eoi(device_t, u_int);
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static void ps3pic_ipi(device_t, u_int);
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static void ps3pic_mask(device_t, u_int);
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static void ps3pic_unmask(device_t, u_int);
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static uint32_t ps3pic_id(device_t dev);
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struct ps3pic_softc {
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uint64_t *bitmap_thread0;
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uint64_t *mask_thread0;
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uint64_t *bitmap_thread1;
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uint64_t *mask_thread1;
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uint64_t sc_ipi_outlet[2];
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int sc_vector[64];
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};
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static device_method_t ps3pic_methods[] = {
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/* Device interface */
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DEVMETHOD(device_identify, ps3pic_identify),
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DEVMETHOD(device_probe, ps3pic_probe),
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DEVMETHOD(device_attach, ps3pic_attach),
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/* PIC interface */
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DEVMETHOD(pic_dispatch, ps3pic_dispatch),
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DEVMETHOD(pic_enable, ps3pic_enable),
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DEVMETHOD(pic_eoi, ps3pic_eoi),
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DEVMETHOD(pic_id, ps3pic_id),
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DEVMETHOD(pic_ipi, ps3pic_ipi),
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DEVMETHOD(pic_mask, ps3pic_mask),
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DEVMETHOD(pic_unmask, ps3pic_unmask),
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{ 0, 0 },
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};
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static driver_t ps3pic_driver = {
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"ps3pic",
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ps3pic_methods,
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sizeof(struct ps3pic_softc)
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};
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static devclass_t ps3pic_devclass;
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DRIVER_MODULE(ps3pic, nexus, ps3pic_driver, ps3pic_devclass, 0, 0);
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static MALLOC_DEFINE(M_PS3PIC, "ps3pic", "PS3 PIC");
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static void
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ps3pic_identify(driver_t *driver, device_t parent)
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{
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if (strcmp(installed_platform(), "ps3") != 0)
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return;
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if (device_find_child(parent, "ps3pic", -1) == NULL)
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BUS_ADD_CHILD(parent, 0, "ps3pic", 0);
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}
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static int
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ps3pic_probe(device_t dev)
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{
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device_set_desc(dev, "Playstation 3 interrupt controller");
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return (BUS_PROBE_NOWILDCARD);
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}
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static int
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ps3pic_attach(device_t dev)
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{
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struct ps3pic_softc *sc;
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uint64_t ppe;
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int thread;
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sc = device_get_softc(dev);
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sc->bitmap_thread0 = contigmalloc(128 /* 512 bits * 2 */, M_PS3PIC,
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M_NOWAIT | M_ZERO, 0, BUS_SPACE_MAXADDR, 64 /* alignment */,
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PAGE_SIZE /* boundary */);
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sc->mask_thread0 = sc->bitmap_thread0 + 4;
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sc->bitmap_thread1 = sc->bitmap_thread0 + 8;
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sc->mask_thread1 = sc->bitmap_thread0 + 12;
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lv1_get_logical_ppe_id(&ppe);
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thread = 32 - fls(mfctrl());
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lv1_configure_irq_state_bitmap(ppe, thread,
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vtophys(sc->bitmap_thread0));
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#ifdef SMP
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lv1_configure_irq_state_bitmap(ppe, !thread,
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vtophys(sc->bitmap_thread1));
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/* Map both IPIs to the same VIRQ to avoid changes in intr_machdep */
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lv1_construct_event_receive_port(&sc->sc_ipi_outlet[0]);
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lv1_connect_irq_plug_ext(ppe, thread, sc->sc_ipi_outlet[0],
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sc->sc_ipi_outlet[0], 0);
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lv1_construct_event_receive_port(&sc->sc_ipi_outlet[1]);
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lv1_connect_irq_plug_ext(ppe, !thread, sc->sc_ipi_outlet[0],
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sc->sc_ipi_outlet[1], 0);
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#endif
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powerpc_register_pic(dev, sc->sc_ipi_outlet[0]);
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root_pic = dev; /* PS3s have only one PIC */
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return (0);
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}
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/*
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* PIC I/F methods.
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*/
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static void
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ps3pic_dispatch(device_t dev, struct trapframe *tf)
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{
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uint64_t bitmap, mask;
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int irq;
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struct ps3pic_softc *sc;
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sc = device_get_softc(dev);
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if (PCPU_GET(cpuid) == 0) {
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bitmap = sc->bitmap_thread0[0];
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mask = sc->mask_thread0[0];
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} else {
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bitmap = sc->bitmap_thread1[0];
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mask = sc->mask_thread1[0];
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}
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while ((irq = ffsl(bitmap & mask) - 1) != -1) {
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bitmap &= ~(1UL << irq);
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powerpc_dispatch_intr(sc->sc_vector[63 - irq], tf);
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}
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}
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static void
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ps3pic_enable(device_t dev, u_int irq, u_int vector)
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{
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struct ps3pic_softc *sc;
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sc = device_get_softc(dev);
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sc->sc_vector[irq] = vector;
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ps3pic_unmask(dev, irq);
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}
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static void
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ps3pic_eoi(device_t dev, u_int irq)
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{
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uint64_t ppe;
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int thread;
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lv1_get_logical_ppe_id(&ppe);
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thread = 32 - fls(mfctrl());
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lv1_end_of_interrupt_ext(ppe, thread, irq);
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}
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static void
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ps3pic_ipi(device_t dev, u_int cpu)
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{
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struct ps3pic_softc *sc;
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sc = device_get_softc(dev);
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lv1_send_event_locally(sc->sc_ipi_outlet[cpu]);
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}
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static void
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ps3pic_mask(device_t dev, u_int irq)
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{
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struct ps3pic_softc *sc;
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uint64_t ppe;
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sc = device_get_softc(dev);
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/* Do not mask IPIs! */
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if (irq == sc->sc_ipi_outlet[0])
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return;
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sc->mask_thread0[0] &= ~(1UL << (63 - irq));
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sc->mask_thread1[0] &= ~(1UL << (63 - irq));
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lv1_get_logical_ppe_id(&ppe);
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lv1_did_update_interrupt_mask(ppe, 0);
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lv1_did_update_interrupt_mask(ppe, 1);
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}
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static void
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ps3pic_unmask(device_t dev, u_int irq)
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{
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struct ps3pic_softc *sc;
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uint64_t ppe;
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sc = device_get_softc(dev);
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sc->mask_thread0[0] |= (1UL << (63 - irq));
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sc->mask_thread1[0] |= (1UL << (63 - irq));
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lv1_get_logical_ppe_id(&ppe);
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lv1_did_update_interrupt_mask(ppe, 0);
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lv1_did_update_interrupt_mask(ppe, 1);
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}
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static uint32_t
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ps3pic_id(device_t dev)
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{
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return (0);
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}
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