534 lines
18 KiB
C
534 lines
18 KiB
C
/*
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* PowerMac MacIO device emulation
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*
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* Copyright (c) 2005-2007 Fabrice Bellard
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* Copyright (c) 2007 Jocelyn Mayer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qemu/module.h"
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#include "hw/ppc/mac.h"
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#include "hw/misc/macio/cuda.h"
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#include "hw/pci/pci.h"
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#include "hw/ppc/mac_dbdma.h"
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#include "hw/qdev-properties.h"
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#include "migration/vmstate.h"
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#include "hw/char/escc.h"
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#include "hw/misc/macio/macio.h"
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#include "hw/intc/heathrow_pic.h"
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#include "sysemu/sysemu.h"
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#include "trace.h"
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/* Note: this code is strongly inspirated from the corresponding code
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* in PearPC */
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/*
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* The mac-io has two interfaces to the ESCC. One is called "escc-legacy",
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* while the other one is the normal, current ESCC interface.
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*
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* The magic below creates memory aliases to spawn the escc-legacy device
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* purely by rerouting the respective registers to our escc region. This
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* works because the only difference between the two memory regions is the
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* register layout, not their semantics.
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*
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* Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf
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*/
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static void macio_escc_legacy_setup(MacIOState *s)
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{
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ESCCState *escc = ESCC(&s->escc);
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SysBusDevice *sbd = SYS_BUS_DEVICE(escc);
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MemoryRegion *escc_legacy = g_new(MemoryRegion, 1);
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MemoryRegion *bar = &s->bar;
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int i;
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static const int maps[] = {
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0x00, 0x00, /* Command B */
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0x02, 0x20, /* Command A */
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0x04, 0x10, /* Data B */
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0x06, 0x30, /* Data A */
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0x08, 0x40, /* Enhancement B */
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0x0A, 0x50, /* Enhancement A */
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0x80, 0x80, /* Recovery count */
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0x90, 0x90, /* Start A */
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0xa0, 0xa0, /* Start B */
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0xb0, 0xb0, /* Detect AB */
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};
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memory_region_init(escc_legacy, OBJECT(s), "escc-legacy", 256);
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for (i = 0; i < ARRAY_SIZE(maps); i += 2) {
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MemoryRegion *port = g_new(MemoryRegion, 1);
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memory_region_init_alias(port, OBJECT(s), "escc-legacy-port",
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sysbus_mmio_get_region(sbd, 0),
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maps[i + 1], 0x2);
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memory_region_add_subregion(escc_legacy, maps[i], port);
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}
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memory_region_add_subregion(bar, 0x12000, escc_legacy);
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}
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static void macio_bar_setup(MacIOState *s)
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{
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ESCCState *escc = ESCC(&s->escc);
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SysBusDevice *sbd = SYS_BUS_DEVICE(escc);
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MemoryRegion *bar = &s->bar;
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memory_region_add_subregion(bar, 0x13000, sysbus_mmio_get_region(sbd, 0));
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macio_escc_legacy_setup(s);
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}
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static void macio_init_child_obj(MacIOState *s, const char *childname,
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void *child, size_t childsize,
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const char *childtype)
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{
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object_initialize_child(OBJECT(s), childname, child, childsize, childtype,
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&error_abort, NULL);
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qdev_set_parent_bus(DEVICE(child), BUS(&s->macio_bus));
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}
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static void macio_common_realize(PCIDevice *d, Error **errp)
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{
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MacIOState *s = MACIO(d);
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SysBusDevice *sysbus_dev;
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Error *err = NULL;
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object_property_set_bool(OBJECT(&s->dbdma), true, "realized", &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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sysbus_dev = SYS_BUS_DEVICE(&s->dbdma);
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memory_region_add_subregion(&s->bar, 0x08000,
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sysbus_mmio_get_region(sysbus_dev, 0));
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qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0);
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qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK);
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qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4);
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qdev_prop_set_chr(DEVICE(&s->escc), "chrA", serial_hd(0));
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qdev_prop_set_chr(DEVICE(&s->escc), "chrB", serial_hd(1));
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qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial);
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qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial);
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object_property_set_bool(OBJECT(&s->escc), true, "realized", &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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macio_bar_setup(s);
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pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar);
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}
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static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide,
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qemu_irq irq0, qemu_irq irq1, int dmaid,
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Error **errp)
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{
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SysBusDevice *sysbus_dev;
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sysbus_dev = SYS_BUS_DEVICE(ide);
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sysbus_connect_irq(sysbus_dev, 0, irq0);
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sysbus_connect_irq(sysbus_dev, 1, irq1);
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qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid);
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object_property_set_link(OBJECT(ide), OBJECT(&s->dbdma), "dbdma", errp);
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macio_ide_register_dma(ide);
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object_property_set_bool(OBJECT(ide), true, "realized", errp);
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}
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static void macio_oldworld_realize(PCIDevice *d, Error **errp)
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{
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MacIOState *s = MACIO(d);
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OldWorldMacIOState *os = OLDWORLD_MACIO(d);
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DeviceState *pic_dev = DEVICE(os->pic);
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Error *err = NULL;
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SysBusDevice *sysbus_dev;
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macio_common_realize(d, &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency",
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s->frequency);
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object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
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memory_region_add_subregion(&s->bar, 0x16000,
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sysbus_mmio_get_region(sysbus_dev, 0));
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sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
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OLDWORLD_CUDA_IRQ));
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sysbus_dev = SYS_BUS_DEVICE(&s->escc);
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sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
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OLDWORLD_ESCCB_IRQ));
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sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev,
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OLDWORLD_ESCCA_IRQ));
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object_property_set_bool(OBJECT(&os->nvram), true, "realized", &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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sysbus_dev = SYS_BUS_DEVICE(&os->nvram);
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memory_region_add_subregion(&s->bar, 0x60000,
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sysbus_mmio_get_region(sysbus_dev, 0));
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pmac_format_nvram_partition(&os->nvram, os->nvram.size);
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/* Heathrow PIC */
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sysbus_dev = SYS_BUS_DEVICE(os->pic);
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memory_region_add_subregion(&s->bar, 0x0,
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sysbus_mmio_get_region(sysbus_dev, 0));
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/* IDE buses */
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macio_realize_ide(s, &os->ide[0],
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qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_IRQ),
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qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_DMA_IRQ),
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0x16, &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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macio_realize_ide(s, &os->ide[1],
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qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_IRQ),
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qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_DMA_IRQ),
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0x1a, &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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}
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static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, size_t ide_size,
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int index)
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{
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gchar *name = g_strdup_printf("ide[%i]", index);
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uint32_t addr = 0x1f000 + ((index + 1) * 0x1000);
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macio_init_child_obj(s, name, ide, ide_size, TYPE_MACIO_IDE);
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qdev_prop_set_uint32(DEVICE(ide), "addr", addr);
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memory_region_add_subregion(&s->bar, addr, &ide->mem);
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g_free(name);
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}
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static void macio_oldworld_init(Object *obj)
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{
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MacIOState *s = MACIO(obj);
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OldWorldMacIOState *os = OLDWORLD_MACIO(obj);
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DeviceState *dev;
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int i;
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object_property_add_link(obj, "pic", TYPE_HEATHROW,
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(Object **) &os->pic,
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qdev_prop_allow_set_link_before_realize,
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0, NULL);
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macio_init_child_obj(s, "cuda", &s->cuda, sizeof(s->cuda), TYPE_CUDA);
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object_initialize(&os->nvram, sizeof(os->nvram), TYPE_MACIO_NVRAM);
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dev = DEVICE(&os->nvram);
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qdev_prop_set_uint32(dev, "size", 0x2000);
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qdev_prop_set_uint32(dev, "it_shift", 4);
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for (i = 0; i < 2; i++) {
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macio_init_ide(s, &os->ide[i], sizeof(os->ide[i]), i);
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}
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}
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static void timer_write(void *opaque, hwaddr addr, uint64_t value,
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unsigned size)
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{
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trace_macio_timer_write(addr, size, value);
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}
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static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size)
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{
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uint32_t value = 0;
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uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
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uint64_t kltime;
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kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4);
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kltime = muldiv64(kltime, 18432000, 1048575);
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switch (addr) {
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case 0x38:
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value = kltime;
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break;
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case 0x3c:
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value = kltime >> 32;
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break;
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}
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trace_macio_timer_read(addr, size, value);
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return value;
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}
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static const MemoryRegionOps timer_ops = {
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.read = timer_read,
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.write = timer_write,
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.endianness = DEVICE_LITTLE_ENDIAN,
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};
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static void macio_newworld_realize(PCIDevice *d, Error **errp)
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{
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MacIOState *s = MACIO(d);
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NewWorldMacIOState *ns = NEWWORLD_MACIO(d);
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DeviceState *pic_dev = DEVICE(ns->pic);
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Error *err = NULL;
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SysBusDevice *sysbus_dev;
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MemoryRegion *timer_memory = NULL;
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macio_common_realize(d, &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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sysbus_dev = SYS_BUS_DEVICE(&s->escc);
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sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
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NEWWORLD_ESCCB_IRQ));
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sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev,
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NEWWORLD_ESCCA_IRQ));
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/* OpenPIC */
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sysbus_dev = SYS_BUS_DEVICE(ns->pic);
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memory_region_add_subregion(&s->bar, 0x40000,
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sysbus_mmio_get_region(sysbus_dev, 0));
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/* IDE buses */
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macio_realize_ide(s, &ns->ide[0],
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qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_IRQ),
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qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_DMA_IRQ),
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0x16, &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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macio_realize_ide(s, &ns->ide[1],
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qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_IRQ),
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qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_DMA_IRQ),
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0x1a, &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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/* Timer */
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timer_memory = g_new(MemoryRegion, 1);
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memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer",
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0x1000);
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memory_region_add_subregion(&s->bar, 0x15000, timer_memory);
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if (ns->has_pmu) {
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/* GPIOs */
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sysbus_dev = SYS_BUS_DEVICE(&ns->gpio);
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object_property_set_link(OBJECT(&ns->gpio), OBJECT(pic_dev), "pic",
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&error_abort);
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memory_region_add_subregion(&s->bar, 0x50,
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sysbus_mmio_get_region(sysbus_dev, 0));
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object_property_set_bool(OBJECT(&ns->gpio), true, "realized", &err);
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/* PMU */
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object_initialize_child(OBJECT(s), "pmu", &s->pmu, sizeof(s->pmu),
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TYPE_VIA_PMU, &error_abort, NULL);
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object_property_set_link(OBJECT(&s->pmu), OBJECT(sysbus_dev), "gpio",
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&error_abort);
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qdev_prop_set_bit(DEVICE(&s->pmu), "has-adb", ns->has_adb);
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qdev_set_parent_bus(DEVICE(&s->pmu), BUS(&s->macio_bus));
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object_property_set_bool(OBJECT(&s->pmu), true, "realized", &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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sysbus_dev = SYS_BUS_DEVICE(&s->pmu);
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sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
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NEWWORLD_PMU_IRQ));
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memory_region_add_subregion(&s->bar, 0x16000,
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sysbus_mmio_get_region(sysbus_dev, 0));
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} else {
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/* CUDA */
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object_initialize_child(OBJECT(s), "cuda", &s->cuda, sizeof(s->cuda),
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TYPE_CUDA, &error_abort, NULL);
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qdev_set_parent_bus(DEVICE(&s->cuda), BUS(&s->macio_bus));
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qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency",
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s->frequency);
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object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
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sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
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NEWWORLD_CUDA_IRQ));
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memory_region_add_subregion(&s->bar, 0x16000,
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sysbus_mmio_get_region(sysbus_dev, 0));
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}
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}
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static void macio_newworld_init(Object *obj)
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{
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MacIOState *s = MACIO(obj);
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NewWorldMacIOState *ns = NEWWORLD_MACIO(obj);
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int i;
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object_property_add_link(obj, "pic", TYPE_OPENPIC,
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(Object **) &ns->pic,
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qdev_prop_allow_set_link_before_realize,
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0, NULL);
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macio_init_child_obj(s, "gpio", &ns->gpio, sizeof(ns->gpio),
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TYPE_MACIO_GPIO);
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for (i = 0; i < 2; i++) {
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macio_init_ide(s, &ns->ide[i], sizeof(ns->ide[i]), i);
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}
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}
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static void macio_instance_init(Object *obj)
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{
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MacIOState *s = MACIO(obj);
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memory_region_init(&s->bar, obj, "macio", 0x80000);
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qbus_create_inplace(&s->macio_bus, sizeof(s->macio_bus), TYPE_MACIO_BUS,
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DEVICE(obj), "macio.0");
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macio_init_child_obj(s, "dbdma", &s->dbdma, sizeof(s->dbdma),
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TYPE_MAC_DBDMA);
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macio_init_child_obj(s, "escc", &s->escc, sizeof(s->escc), TYPE_ESCC);
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}
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static const VMStateDescription vmstate_macio_oldworld = {
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.name = "macio-oldworld",
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.version_id = 0,
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.minimum_version_id = 0,
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.fields = (VMStateField[]) {
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VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState),
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VMSTATE_END_OF_LIST()
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}
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};
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static void macio_oldworld_class_init(ObjectClass *oc, void *data)
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{
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PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
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DeviceClass *dc = DEVICE_CLASS(oc);
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pdc->realize = macio_oldworld_realize;
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pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201;
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dc->vmsd = &vmstate_macio_oldworld;
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}
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static const VMStateDescription vmstate_macio_newworld = {
|
|
.name = "macio-newworld",
|
|
.version_id = 0,
|
|
.minimum_version_id = 0,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static Property macio_newworld_properties[] = {
|
|
DEFINE_PROP_BOOL("has-pmu", NewWorldMacIOState, has_pmu, false),
|
|
DEFINE_PROP_BOOL("has-adb", NewWorldMacIOState, has_adb, false),
|
|
DEFINE_PROP_END_OF_LIST()
|
|
};
|
|
|
|
static void macio_newworld_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
|
|
pdc->realize = macio_newworld_realize;
|
|
pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL;
|
|
dc->vmsd = &vmstate_macio_newworld;
|
|
device_class_set_props(dc, macio_newworld_properties);
|
|
}
|
|
|
|
static Property macio_properties[] = {
|
|
DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0),
|
|
DEFINE_PROP_END_OF_LIST()
|
|
};
|
|
|
|
static void macio_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
k->vendor_id = PCI_VENDOR_ID_APPLE;
|
|
k->class_id = PCI_CLASS_OTHERS << 8;
|
|
device_class_set_props(dc, macio_properties);
|
|
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
|
|
/* Reason: Uses serial_hds in macio_instance_init */
|
|
dc->user_creatable = false;
|
|
}
|
|
|
|
static const TypeInfo macio_bus_info = {
|
|
.name = TYPE_MACIO_BUS,
|
|
.parent = TYPE_BUS,
|
|
.instance_size = sizeof(MacIOBusState),
|
|
};
|
|
|
|
static const TypeInfo macio_oldworld_type_info = {
|
|
.name = TYPE_OLDWORLD_MACIO,
|
|
.parent = TYPE_MACIO,
|
|
.instance_size = sizeof(OldWorldMacIOState),
|
|
.instance_init = macio_oldworld_init,
|
|
.class_init = macio_oldworld_class_init,
|
|
};
|
|
|
|
static const TypeInfo macio_newworld_type_info = {
|
|
.name = TYPE_NEWWORLD_MACIO,
|
|
.parent = TYPE_MACIO,
|
|
.instance_size = sizeof(NewWorldMacIOState),
|
|
.instance_init = macio_newworld_init,
|
|
.class_init = macio_newworld_class_init,
|
|
};
|
|
|
|
static const TypeInfo macio_type_info = {
|
|
.name = TYPE_MACIO,
|
|
.parent = TYPE_PCI_DEVICE,
|
|
.instance_size = sizeof(MacIOState),
|
|
.instance_init = macio_instance_init,
|
|
.abstract = true,
|
|
.class_init = macio_class_init,
|
|
.interfaces = (InterfaceInfo[]) {
|
|
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
|
|
{ },
|
|
},
|
|
};
|
|
|
|
static void macio_register_types(void)
|
|
{
|
|
type_register_static(&macio_bus_info);
|
|
type_register_static(&macio_type_info);
|
|
type_register_static(&macio_oldworld_type_info);
|
|
type_register_static(&macio_newworld_type_info);
|
|
}
|
|
|
|
type_init(macio_register_types)
|