6ebf5905f4
The only reason we have bswap versions of the pci host code is that most pci host devices are little endian. The ppc e500 is the only odd one here, being big endian. So let's directly pass the endianness down to the mmio layer and not worry about it on the pci host layer. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
148 lines
4.4 KiB
C
148 lines
4.4 KiB
C
/*
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* QEMU Grackle PCI host (heathrow OldWorld PowerMac)
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*
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* Copyright (c) 2006-2007 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 "sysbus.h"
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#include "ppc_mac.h"
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#include "pci.h"
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#include "pci_host.h"
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/* debug Grackle */
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//#define DEBUG_GRACKLE
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#ifdef DEBUG_GRACKLE
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#define GRACKLE_DPRINTF(fmt, ...) \
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do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0)
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#else
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#define GRACKLE_DPRINTF(fmt, ...)
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#endif
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typedef struct GrackleState {
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SysBusDevice busdev;
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PCIHostState host_state;
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} GrackleState;
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/* Don't know if this matches real hardware, but it agrees with OHW. */
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static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
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{
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return (irq_num + (pci_dev->devfn >> 3)) & 3;
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}
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static void pci_grackle_set_irq(void *opaque, int irq_num, int level)
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{
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qemu_irq *pic = opaque;
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GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level);
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qemu_set_irq(pic[irq_num + 0x15], level);
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}
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static void pci_grackle_save(QEMUFile* f, void *opaque)
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{
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PCIDevice *d = opaque;
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pci_device_save(d, f);
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}
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static int pci_grackle_load(QEMUFile* f, void *opaque, int version_id)
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{
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PCIDevice *d = opaque;
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if (version_id != 1)
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return -EINVAL;
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return pci_device_load(d, f);
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}
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static void pci_grackle_reset(void *opaque)
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{
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}
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PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic)
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{
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DeviceState *dev;
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SysBusDevice *s;
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GrackleState *d;
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dev = qdev_create(NULL, "grackle");
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qdev_init_nofail(dev);
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s = sysbus_from_qdev(dev);
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d = FROM_SYSBUS(GrackleState, s);
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d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
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pci_grackle_set_irq,
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pci_grackle_map_irq,
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pic, 0, 4);
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pci_create_simple(d->host_state.bus, 0, "grackle");
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sysbus_mmio_map(s, 0, base);
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sysbus_mmio_map(s, 1, base + 0x00200000);
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return d->host_state.bus;
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}
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static int pci_grackle_init_device(SysBusDevice *dev)
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{
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GrackleState *s;
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int pci_mem_config, pci_mem_data;
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s = FROM_SYSBUS(GrackleState, dev);
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pci_mem_config = pci_host_conf_register_mmio(&s->host_state,
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DEVICE_LITTLE_ENDIAN);
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pci_mem_data = pci_host_data_register_mmio(&s->host_state,
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DEVICE_LITTLE_ENDIAN);
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sysbus_init_mmio(dev, 0x1000, pci_mem_config);
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sysbus_init_mmio(dev, 0x1000, pci_mem_data);
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register_savevm(&dev->qdev, "grackle", 0, 1, pci_grackle_save,
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pci_grackle_load, &s->host_state);
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qemu_register_reset(pci_grackle_reset, &s->host_state);
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return 0;
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}
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static int grackle_pci_host_init(PCIDevice *d)
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{
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pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_MOTOROLA);
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pci_config_set_device_id(d->config, PCI_DEVICE_ID_MOTOROLA_MPC106);
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d->config[0x08] = 0x00; // revision
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d->config[0x09] = 0x01;
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pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
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return 0;
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}
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static PCIDeviceInfo grackle_pci_host_info = {
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.qdev.name = "grackle",
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.qdev.size = sizeof(PCIDevice),
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.init = grackle_pci_host_init,
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};
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static void grackle_register_devices(void)
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{
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sysbus_register_dev("grackle", sizeof(GrackleState),
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pci_grackle_init_device);
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pci_qdev_register(&grackle_pci_host_info);
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}
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device_init(grackle_register_devices)
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