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https://github.com/xemu-project/xemu.git
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81a322d4a1
Sorry folks, but it has to be. One more of these invasive qdev patches. We have a serious design bug in the qdev interface: device init callbacks can't signal failure because the init() callback has no return value. This patch fixes it. We have already one case in-tree where this is needed: Try -device virtio-blk-pci (without drive= specified) and watch qemu segfault. This patch fixes it. With usb+scsi being converted to qdev we'll get more devices where the init callback can fail for various reasons. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
393 lines
12 KiB
C
393 lines
12 KiB
C
/*
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* QEMU Uninorth PCI host (for all Mac99 and newer machines)
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*
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* Copyright (c) 2006 Fabrice Bellard
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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 "hw.h"
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#include "ppc_mac.h"
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#include "pci.h"
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/* debug UniNorth */
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//#define DEBUG_UNIN
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#ifdef DEBUG_UNIN
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#define UNIN_DPRINTF(fmt, ...) \
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do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
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#else
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#define UNIN_DPRINTF(fmt, ...)
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#endif
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typedef target_phys_addr_t pci_addr_t;
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#include "pci_host.h"
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typedef struct UNINState {
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SysBusDevice busdev;
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PCIHostState host_state;
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} UNINState;
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static void pci_unin_main_config_writel (void *opaque, target_phys_addr_t addr,
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uint32_t val)
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{
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UNINState *s = opaque;
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UNIN_DPRINTF("config_writel addr " TARGET_FMT_plx " val %x\n", addr, val);
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#ifdef TARGET_WORDS_BIGENDIAN
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val = bswap32(val);
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#endif
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s->host_state.config_reg = val;
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}
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static uint32_t pci_unin_main_config_readl (void *opaque,
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target_phys_addr_t addr)
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{
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UNINState *s = opaque;
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uint32_t val;
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val = s->host_state.config_reg;
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#ifdef TARGET_WORDS_BIGENDIAN
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val = bswap32(val);
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#endif
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UNIN_DPRINTF("config_readl addr " TARGET_FMT_plx " val %x\n", addr, val);
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return val;
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}
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static CPUWriteMemoryFunc * const pci_unin_main_config_write[] = {
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&pci_unin_main_config_writel,
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&pci_unin_main_config_writel,
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&pci_unin_main_config_writel,
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};
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static CPUReadMemoryFunc * const pci_unin_main_config_read[] = {
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&pci_unin_main_config_readl,
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&pci_unin_main_config_readl,
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&pci_unin_main_config_readl,
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};
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static CPUWriteMemoryFunc * const pci_unin_main_write[] = {
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&pci_host_data_writeb,
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&pci_host_data_writew,
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&pci_host_data_writel,
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};
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static CPUReadMemoryFunc * const pci_unin_main_read[] = {
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&pci_host_data_readb,
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&pci_host_data_readw,
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&pci_host_data_readl,
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};
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static void pci_unin_config_writel (void *opaque, target_phys_addr_t addr,
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uint32_t val)
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{
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UNINState *s = opaque;
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s->host_state.config_reg = val;
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}
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static uint32_t pci_unin_config_readl (void *opaque,
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target_phys_addr_t addr)
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{
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UNINState *s = opaque;
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return s->host_state.config_reg;
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}
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static CPUWriteMemoryFunc * const pci_unin_config_write[] = {
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&pci_unin_config_writel,
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&pci_unin_config_writel,
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&pci_unin_config_writel,
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};
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static CPUReadMemoryFunc * const pci_unin_config_read[] = {
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&pci_unin_config_readl,
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&pci_unin_config_readl,
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&pci_unin_config_readl,
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};
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static CPUWriteMemoryFunc * const pci_unin_write[] = {
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&pci_host_data_writeb,
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&pci_host_data_writew,
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&pci_host_data_writel,
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};
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static CPUReadMemoryFunc * const pci_unin_read[] = {
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&pci_host_data_readb,
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&pci_host_data_readw,
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&pci_host_data_readl,
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};
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/* Don't know if this matches real hardware, but it agrees with OHW. */
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static int pci_unin_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_unin_set_irq(qemu_irq *pic, int irq_num, int level)
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{
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qemu_set_irq(pic[irq_num + 8], level);
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}
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static void pci_unin_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_unin_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_unin_reset(void *opaque)
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{
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}
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static int pci_unin_main_init_device(SysBusDevice *dev)
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{
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UNINState *s;
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int pci_mem_config, pci_mem_data;
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/* Use values found on a real PowerMac */
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/* Uninorth main bus */
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s = FROM_SYSBUS(UNINState, dev);
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pci_mem_config = cpu_register_io_memory(pci_unin_main_config_read,
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pci_unin_main_config_write, s);
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pci_mem_data = cpu_register_io_memory(pci_unin_main_read,
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pci_unin_main_write, &s->host_state);
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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("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
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qemu_register_reset(pci_unin_reset, &s->host_state);
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pci_unin_reset(&s->host_state);
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return 0;
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}
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static int pci_dec_21154_init_device(SysBusDevice *dev)
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{
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UNINState *s;
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int pci_mem_config, pci_mem_data;
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/* Uninorth bridge */
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s = FROM_SYSBUS(UNINState, dev);
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// XXX: s = &pci_bridge[2];
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pci_mem_config = cpu_register_io_memory(pci_unin_config_read,
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pci_unin_config_write, s);
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pci_mem_data = cpu_register_io_memory(pci_unin_main_read,
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pci_unin_main_write, &s->host_state);
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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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return 0;
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}
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static int pci_unin_agp_init_device(SysBusDevice *dev)
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{
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UNINState *s;
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int pci_mem_config, pci_mem_data;
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/* Uninorth AGP bus */
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s = FROM_SYSBUS(UNINState, dev);
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pci_mem_config = cpu_register_io_memory(pci_unin_config_read,
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pci_unin_config_write, s);
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pci_mem_data = cpu_register_io_memory(pci_unin_main_read,
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pci_unin_main_write, &s->host_state);
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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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return 0;
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}
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static int pci_unin_internal_init_device(SysBusDevice *dev)
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{
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UNINState *s;
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int pci_mem_config, pci_mem_data;
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/* Uninorth internal bus */
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s = FROM_SYSBUS(UNINState, dev);
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pci_mem_config = cpu_register_io_memory(pci_unin_config_read,
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pci_unin_config_write, s);
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pci_mem_data = cpu_register_io_memory(pci_unin_read,
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pci_unin_write, s);
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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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return 0;
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}
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PCIBus *pci_pmac_init(qemu_irq *pic)
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{
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DeviceState *dev;
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SysBusDevice *s;
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UNINState *d;
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/* Use values found on a real PowerMac */
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/* Uninorth main bus */
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dev = qdev_create(NULL, "Uni-north main");
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qdev_init(dev);
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s = sysbus_from_qdev(dev);
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d = FROM_SYSBUS(UNINState, s);
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d->host_state.bus = pci_register_bus(NULL, "pci",
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pci_unin_set_irq, pci_unin_map_irq,
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pic, 11 << 3, 4);
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pci_create_simple(d->host_state.bus, 11 << 3, "Uni-north main");
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sysbus_mmio_map(s, 0, 0xf2800000);
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sysbus_mmio_map(s, 1, 0xf2c00000);
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/* DEC 21154 bridge */
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#if 0
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/* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
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pci_create_simple(d->host_state.bus, 12 << 3, "DEC 21154");
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#endif
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/* Uninorth AGP bus */
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pci_create_simple(d->host_state.bus, 13 << 3, "Uni-north AGP");
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/* Uninorth internal bus */
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#if 0
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/* XXX: not needed for now */
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pci_create_simple(d->host_state.bus, 14 << 3, "Uni-north internal");
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#endif
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return d->host_state.bus;
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}
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static int unin_main_pci_host_init(PCIDevice *d)
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{
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pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
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pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI);
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d->config[0x08] = 0x00; // revision
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pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
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d->config[0x0C] = 0x08; // cache_line_size
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d->config[0x0D] = 0x10; // latency_timer
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d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
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d->config[0x34] = 0x00; // capabilities_pointer
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return 0;
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}
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static int dec_21154_pci_host_init(PCIDevice *d)
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{
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/* pci-to-pci bridge */
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pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC);
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pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154);
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d->config[0x08] = 0x05; // revision
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pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI);
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d->config[0x0C] = 0x08; // cache_line_size
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d->config[0x0D] = 0x20; // latency_timer
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d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_BRIDGE; // header_type
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d->config[0x18] = 0x01; // primary_bus
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d->config[0x19] = 0x02; // secondary_bus
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d->config[0x1A] = 0x02; // subordinate_bus
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d->config[0x1B] = 0x20; // secondary_latency_timer
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d->config[0x1C] = 0x11; // io_base
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d->config[0x1D] = 0x01; // io_limit
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d->config[0x20] = 0x00; // memory_base
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d->config[0x21] = 0x80;
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d->config[0x22] = 0x00; // memory_limit
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d->config[0x23] = 0x80;
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d->config[0x24] = 0x01; // prefetchable_memory_base
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d->config[0x25] = 0x80;
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d->config[0x26] = 0xF1; // prefectchable_memory_limit
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d->config[0x27] = 0x7F;
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// d->config[0x34] = 0xdc // capabilities_pointer
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return 0;
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}
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static int unin_agp_pci_host_init(PCIDevice *d)
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{
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pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
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pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP);
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d->config[0x08] = 0x00; // revision
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pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
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d->config[0x0C] = 0x08; // cache_line_size
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d->config[0x0D] = 0x10; // latency_timer
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d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
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// d->config[0x34] = 0x80; // capabilities_pointer
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return 0;
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}
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static int unin_internal_pci_host_init(PCIDevice *d)
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{
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pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
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pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI);
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d->config[0x08] = 0x00; // revision
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pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
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d->config[0x0C] = 0x08; // cache_line_size
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d->config[0x0D] = 0x10; // latency_timer
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d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
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d->config[0x34] = 0x00; // capabilities_pointer
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return 0;
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}
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static PCIDeviceInfo unin_main_pci_host_info = {
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.qdev.name = "Uni-north main",
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.qdev.size = sizeof(PCIDevice),
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.init = unin_main_pci_host_init,
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};
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static PCIDeviceInfo dec_21154_pci_host_info = {
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.qdev.name = "DEC 21154",
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.qdev.size = sizeof(PCIDevice),
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.init = dec_21154_pci_host_init,
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};
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static PCIDeviceInfo unin_agp_pci_host_info = {
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.qdev.name = "Uni-north AGP",
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.qdev.size = sizeof(PCIDevice),
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.init = unin_agp_pci_host_init,
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};
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static PCIDeviceInfo unin_internal_pci_host_info = {
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.qdev.name = "Uni-north internal",
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.qdev.size = sizeof(PCIDevice),
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.init = unin_internal_pci_host_init,
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};
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static void unin_register_devices(void)
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{
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sysbus_register_dev("Uni-north main", sizeof(UNINState),
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pci_unin_main_init_device);
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pci_qdev_register(&unin_main_pci_host_info);
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sysbus_register_dev("DEC 21154", sizeof(UNINState),
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pci_dec_21154_init_device);
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pci_qdev_register(&dec_21154_pci_host_info);
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sysbus_register_dev("Uni-north AGP", sizeof(UNINState),
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pci_unin_agp_init_device);
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pci_qdev_register(&unin_agp_pci_host_info);
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sysbus_register_dev("Uni-north internal", sizeof(UNINState),
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pci_unin_internal_init_device);
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pci_qdev_register(&unin_internal_pci_host_info);
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}
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device_init(unin_register_devices)
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