diff options
Diffstat (limited to 'qemu/hw/pci/pci_host.c')
| -rw-r--r-- | qemu/hw/pci/pci_host.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/qemu/hw/pci/pci_host.c b/qemu/hw/pci/pci_host.c deleted file mode 100644 index 5eaa935cb..000000000 --- a/qemu/hw/pci/pci_host.c +++ /dev/null @@ -1,207 +0,0 @@ -/* - * pci_host.c - * - * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp> - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - - * You should have received a copy of the GNU General Public License along - * with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "hw/pci/pci.h" -#include "hw/pci/pci_host.h" -#include "hw/pci/pci_bus.h" -#include "trace.h" - -/* debug PCI */ -//#define DEBUG_PCI - -#ifdef DEBUG_PCI -#define PCI_DPRINTF(fmt, ...) \ -do { printf("pci_host_data: " fmt , ## __VA_ARGS__); } while (0) -#else -#define PCI_DPRINTF(fmt, ...) -#endif - -/* - * PCI address - * bit 16 - 24: bus number - * bit 8 - 15: devfun number - * bit 0 - 7: offset in configuration space of a given pci device - */ - -/* the helper function to get a PCIDevice* for a given pci address */ -static inline PCIDevice *pci_dev_find_by_addr(PCIBus *bus, uint32_t addr) -{ - uint8_t bus_num = addr >> 16; - uint8_t devfn = addr >> 8; - - return pci_find_device(bus, bus_num, devfn); -} - -void pci_host_config_write_common(PCIDevice *pci_dev, uint32_t addr, - uint32_t limit, uint32_t val, uint32_t len) -{ - assert(len <= 4); - /* non-zero functions are only exposed when function 0 is present, - * allowing direct removal of unexposed functions. - */ - if (pci_dev->qdev.hotplugged && !pci_get_function_0(pci_dev)) { - return; - } - - trace_pci_cfg_write(pci_dev->name, PCI_SLOT(pci_dev->devfn), - PCI_FUNC(pci_dev->devfn), addr, val); - pci_dev->config_write(pci_dev, addr, val, MIN(len, limit - addr)); -} - -uint32_t pci_host_config_read_common(PCIDevice *pci_dev, uint32_t addr, - uint32_t limit, uint32_t len) -{ - uint32_t ret; - - assert(len <= 4); - /* non-zero functions are only exposed when function 0 is present, - * allowing direct removal of unexposed functions. - */ - if (pci_dev->qdev.hotplugged && !pci_get_function_0(pci_dev)) { - return ~0x0; - } - - ret = pci_dev->config_read(pci_dev, addr, MIN(len, limit - addr)); - trace_pci_cfg_read(pci_dev->name, PCI_SLOT(pci_dev->devfn), - PCI_FUNC(pci_dev->devfn), addr, ret); - - return ret; -} - -void pci_data_write(PCIBus *s, uint32_t addr, uint32_t val, int len) -{ - PCIDevice *pci_dev = pci_dev_find_by_addr(s, addr); - uint32_t config_addr = addr & (PCI_CONFIG_SPACE_SIZE - 1); - - if (!pci_dev) { - return; - } - - PCI_DPRINTF("%s: %s: addr=%02" PRIx32 " val=%08" PRIx32 " len=%d\n", - __func__, pci_dev->name, config_addr, val, len); - pci_host_config_write_common(pci_dev, config_addr, PCI_CONFIG_SPACE_SIZE, - val, len); -} - -uint32_t pci_data_read(PCIBus *s, uint32_t addr, int len) -{ - PCIDevice *pci_dev = pci_dev_find_by_addr(s, addr); - uint32_t config_addr = addr & (PCI_CONFIG_SPACE_SIZE - 1); - uint32_t val; - - if (!pci_dev) { - return ~0x0; - } - - val = pci_host_config_read_common(pci_dev, config_addr, - PCI_CONFIG_SPACE_SIZE, len); - PCI_DPRINTF("%s: %s: addr=%02"PRIx32" val=%08"PRIx32" len=%d\n", - __func__, pci_dev->name, config_addr, val, len); - - return val; -} - -static void pci_host_config_write(void *opaque, hwaddr addr, - uint64_t val, unsigned len) -{ - PCIHostState *s = opaque; - - PCI_DPRINTF("%s addr " TARGET_FMT_plx " len %d val %"PRIx64"\n", - __func__, addr, len, val); - if (addr != 0 || len != 4) { - return; - } - s->config_reg = val; -} - -static uint64_t pci_host_config_read(void *opaque, hwaddr addr, - unsigned len) -{ - PCIHostState *s = opaque; - uint32_t val = s->config_reg; - - PCI_DPRINTF("%s addr " TARGET_FMT_plx " len %d val %"PRIx32"\n", - __func__, addr, len, val); - return val; -} - -static void pci_host_data_write(void *opaque, hwaddr addr, - uint64_t val, unsigned len) -{ - PCIHostState *s = opaque; - PCI_DPRINTF("write addr " TARGET_FMT_plx " len %d val %x\n", - addr, len, (unsigned)val); - if (s->config_reg & (1u << 31)) - pci_data_write(s->bus, s->config_reg | (addr & 3), val, len); -} - -static uint64_t pci_host_data_read(void *opaque, - hwaddr addr, unsigned len) -{ - PCIHostState *s = opaque; - uint32_t val; - if (!(s->config_reg & (1U << 31))) { - return 0xffffffff; - } - val = pci_data_read(s->bus, s->config_reg | (addr & 3), len); - PCI_DPRINTF("read addr " TARGET_FMT_plx " len %d val %x\n", - addr, len, val); - return val; -} - -const MemoryRegionOps pci_host_conf_le_ops = { - .read = pci_host_config_read, - .write = pci_host_config_write, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -const MemoryRegionOps pci_host_conf_be_ops = { - .read = pci_host_config_read, - .write = pci_host_config_write, - .endianness = DEVICE_BIG_ENDIAN, -}; - -const MemoryRegionOps pci_host_data_le_ops = { - .read = pci_host_data_read, - .write = pci_host_data_write, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -const MemoryRegionOps pci_host_data_be_ops = { - .read = pci_host_data_read, - .write = pci_host_data_write, - .endianness = DEVICE_BIG_ENDIAN, -}; - -static const TypeInfo pci_host_type_info = { - .name = TYPE_PCI_HOST_BRIDGE, - .parent = TYPE_SYS_BUS_DEVICE, - .abstract = true, - .class_size = sizeof(PCIHostBridgeClass), - .instance_size = sizeof(PCIHostState), -}; - -static void pci_host_register_types(void) -{ - type_register_static(&pci_host_type_info); -} - -type_init(pci_host_register_types) |