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author | Paolo Bonzini <pbonzini@redhat.com> | 2013-02-05 15:06:20 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-04-08 18:13:14 +0200 |
commit | c0907c9e6417cb959dfd9ef6873221536ec91351 (patch) | |
tree | cc8df9eea467139d4cbc961cf34d357f618d0e9e /hw/apb_pci.c | |
parent | 8ac5c6510b609c123d6b394b2de16462ac7c395f (diff) | |
download | qemu-c0907c9e6417cb959dfd9ef6873221536ec91351.zip qemu-c0907c9e6417cb959dfd9ef6873221536ec91351.tar.gz qemu-c0907c9e6417cb959dfd9ef6873221536ec91351.tar.bz2 |
hw: move PCI bridges to hw/pci-* or hw/ARCH
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/apb_pci.c')
-rw-r--r-- | hw/apb_pci.c | 542 |
1 files changed, 0 insertions, 542 deletions
diff --git a/hw/apb_pci.c b/hw/apb_pci.c deleted file mode 100644 index fe15ae8..0000000 --- a/hw/apb_pci.c +++ /dev/null @@ -1,542 +0,0 @@ -/* - * QEMU Ultrasparc APB PCI host - * - * Copyright (c) 2006 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -/* XXX This file and most of its contents are somewhat misnamed. The - Ultrasparc PCI host is called the PCI Bus Module (PBM). The APB is - the secondary PCI bridge. */ - -#include "hw/sysbus.h" -#include "hw/pci/pci.h" -#include "hw/pci/pci_host.h" -#include "hw/pci/pci_bridge.h" -#include "hw/pci/pci_bus.h" -#include "hw/pci-host/apb.h" -#include "sysemu/sysemu.h" -#include "exec/address-spaces.h" - -/* debug APB */ -//#define DEBUG_APB - -#ifdef DEBUG_APB -#define APB_DPRINTF(fmt, ...) \ -do { printf("APB: " fmt , ## __VA_ARGS__); } while (0) -#else -#define APB_DPRINTF(fmt, ...) -#endif - -/* - * Chipset docs: - * PBM: "UltraSPARC IIi User's Manual", - * http://www.sun.com/processors/manuals/805-0087.pdf - * - * APB: "Advanced PCI Bridge (APB) User's Manual", - * http://www.sun.com/processors/manuals/805-1251.pdf - */ - -#define PBM_PCI_IMR_MASK 0x7fffffff -#define PBM_PCI_IMR_ENABLED 0x80000000 - -#define POR (1 << 31) -#define SOFT_POR (1 << 30) -#define SOFT_XIR (1 << 29) -#define BTN_POR (1 << 28) -#define BTN_XIR (1 << 27) -#define RESET_MASK 0xf8000000 -#define RESET_WCMASK 0x98000000 -#define RESET_WMASK 0x60000000 - -#define MAX_IVEC 0x30 - -typedef struct APBState { - SysBusDevice busdev; - PCIBus *bus; - MemoryRegion apb_config; - MemoryRegion pci_config; - MemoryRegion pci_mmio; - MemoryRegion pci_ioport; - uint32_t iommu[4]; - uint32_t pci_control[16]; - uint32_t pci_irq_map[8]; - uint32_t obio_irq_map[32]; - qemu_irq *pbm_irqs; - qemu_irq *ivec_irqs; - uint32_t reset_control; - unsigned int nr_resets; -} APBState; - -static void pci_apb_set_irq(void *opaque, int irq_num, int level); - -static void apb_config_writel (void *opaque, hwaddr addr, - uint64_t val, unsigned size) -{ - APBState *s = opaque; - - APB_DPRINTF("%s: addr " TARGET_FMT_lx " val %" PRIx64 "\n", __func__, addr, val); - - switch (addr & 0xffff) { - case 0x30 ... 0x4f: /* DMA error registers */ - /* XXX: not implemented yet */ - break; - case 0x200 ... 0x20b: /* IOMMU */ - s->iommu[(addr & 0xf) >> 2] = val; - break; - case 0x20c ... 0x3ff: /* IOMMU flush */ - break; - case 0xc00 ... 0xc3f: /* PCI interrupt control */ - if (addr & 4) { - s->pci_irq_map[(addr & 0x3f) >> 3] &= PBM_PCI_IMR_MASK; - s->pci_irq_map[(addr & 0x3f) >> 3] |= val & ~PBM_PCI_IMR_MASK; - } - break; - case 0x1000 ... 0x1080: /* OBIO interrupt control */ - if (addr & 4) { - s->obio_irq_map[(addr & 0xff) >> 3] &= PBM_PCI_IMR_MASK; - s->obio_irq_map[(addr & 0xff) >> 3] |= val & ~PBM_PCI_IMR_MASK; - } - break; - case 0x1400 ... 0x143f: /* PCI interrupt clear */ - if (addr & 4) { - pci_apb_set_irq(s, (addr & 0x3f) >> 3, 0); - } - break; - case 0x1800 ... 0x1860: /* OBIO interrupt clear */ - if (addr & 4) { - pci_apb_set_irq(s, 0x20 | ((addr & 0xff) >> 3), 0); - } - break; - case 0x2000 ... 0x202f: /* PCI control */ - s->pci_control[(addr & 0x3f) >> 2] = val; - break; - case 0xf020 ... 0xf027: /* Reset control */ - if (addr & 4) { - val &= RESET_MASK; - s->reset_control &= ~(val & RESET_WCMASK); - s->reset_control |= val & RESET_WMASK; - if (val & SOFT_POR) { - s->nr_resets = 0; - qemu_system_reset_request(); - } else if (val & SOFT_XIR) { - qemu_system_reset_request(); - } - } - break; - case 0x5000 ... 0x51cf: /* PIO/DMA diagnostics */ - case 0xa400 ... 0xa67f: /* IOMMU diagnostics */ - case 0xa800 ... 0xa80f: /* Interrupt diagnostics */ - case 0xf000 ... 0xf01f: /* FFB config, memory control */ - /* we don't care */ - default: - break; - } -} - -static uint64_t apb_config_readl (void *opaque, - hwaddr addr, unsigned size) -{ - APBState *s = opaque; - uint32_t val; - - switch (addr & 0xffff) { - case 0x30 ... 0x4f: /* DMA error registers */ - val = 0; - /* XXX: not implemented yet */ - break; - case 0x200 ... 0x20b: /* IOMMU */ - val = s->iommu[(addr & 0xf) >> 2]; - break; - case 0x20c ... 0x3ff: /* IOMMU flush */ - val = 0; - break; - case 0xc00 ... 0xc3f: /* PCI interrupt control */ - if (addr & 4) { - val = s->pci_irq_map[(addr & 0x3f) >> 3]; - } else { - val = 0; - } - break; - case 0x1000 ... 0x1080: /* OBIO interrupt control */ - if (addr & 4) { - val = s->obio_irq_map[(addr & 0xff) >> 3]; - } else { - val = 0; - } - break; - case 0x2000 ... 0x202f: /* PCI control */ - val = s->pci_control[(addr & 0x3f) >> 2]; - break; - case 0xf020 ... 0xf027: /* Reset control */ - if (addr & 4) { - val = s->reset_control; - } else { - val = 0; - } - break; - case 0x5000 ... 0x51cf: /* PIO/DMA diagnostics */ - case 0xa400 ... 0xa67f: /* IOMMU diagnostics */ - case 0xa800 ... 0xa80f: /* Interrupt diagnostics */ - case 0xf000 ... 0xf01f: /* FFB config, memory control */ - /* we don't care */ - default: - val = 0; - break; - } - APB_DPRINTF("%s: addr " TARGET_FMT_lx " -> %x\n", __func__, addr, val); - - return val; -} - -static const MemoryRegionOps apb_config_ops = { - .read = apb_config_readl, - .write = apb_config_writel, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -static void apb_pci_config_write(void *opaque, hwaddr addr, - uint64_t val, unsigned size) -{ - APBState *s = opaque; - - val = qemu_bswap_len(val, size); - APB_DPRINTF("%s: addr " TARGET_FMT_lx " val %" PRIx64 "\n", __func__, addr, val); - pci_data_write(s->bus, addr, val, size); -} - -static uint64_t apb_pci_config_read(void *opaque, hwaddr addr, - unsigned size) -{ - uint32_t ret; - APBState *s = opaque; - - ret = pci_data_read(s->bus, addr, size); - ret = qemu_bswap_len(ret, size); - APB_DPRINTF("%s: addr " TARGET_FMT_lx " -> %x\n", __func__, addr, ret); - return ret; -} - -static void pci_apb_iowriteb (void *opaque, hwaddr addr, - uint32_t val) -{ - cpu_outb(addr & IOPORTS_MASK, val); -} - -static void pci_apb_iowritew (void *opaque, hwaddr addr, - uint32_t val) -{ - cpu_outw(addr & IOPORTS_MASK, bswap16(val)); -} - -static void pci_apb_iowritel (void *opaque, hwaddr addr, - uint32_t val) -{ - cpu_outl(addr & IOPORTS_MASK, bswap32(val)); -} - -static uint32_t pci_apb_ioreadb (void *opaque, hwaddr addr) -{ - uint32_t val; - - val = cpu_inb(addr & IOPORTS_MASK); - return val; -} - -static uint32_t pci_apb_ioreadw (void *opaque, hwaddr addr) -{ - uint32_t val; - - val = bswap16(cpu_inw(addr & IOPORTS_MASK)); - return val; -} - -static uint32_t pci_apb_ioreadl (void *opaque, hwaddr addr) -{ - uint32_t val; - - val = bswap32(cpu_inl(addr & IOPORTS_MASK)); - return val; -} - -static const MemoryRegionOps pci_ioport_ops = { - .old_mmio = { - .read = { pci_apb_ioreadb, pci_apb_ioreadw, pci_apb_ioreadl }, - .write = { pci_apb_iowriteb, pci_apb_iowritew, pci_apb_iowritel, }, - }, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -/* The APB host has an IRQ line for each IRQ line of each slot. */ -static int pci_apb_map_irq(PCIDevice *pci_dev, int irq_num) -{ - return ((pci_dev->devfn & 0x18) >> 1) + irq_num; -} - -static int pci_pbm_map_irq(PCIDevice *pci_dev, int irq_num) -{ - int bus_offset; - if (pci_dev->devfn & 1) - bus_offset = 16; - else - bus_offset = 0; - return bus_offset + irq_num; -} - -static void pci_apb_set_irq(void *opaque, int irq_num, int level) -{ - APBState *s = opaque; - - /* PCI IRQ map onto the first 32 INO. */ - if (irq_num < 32) { - if (s->pci_irq_map[irq_num >> 2] & PBM_PCI_IMR_ENABLED) { - APB_DPRINTF("%s: set irq %d level %d\n", __func__, irq_num, level); - qemu_set_irq(s->ivec_irqs[irq_num], level); - } else { - APB_DPRINTF("%s: not enabled: lower irq %d\n", __func__, irq_num); - qemu_irq_lower(s->ivec_irqs[irq_num]); - } - } else { - /* OBIO IRQ map onto the next 16 INO. */ - if (s->obio_irq_map[irq_num - 32] & PBM_PCI_IMR_ENABLED) { - APB_DPRINTF("%s: set irq %d level %d\n", __func__, irq_num, level); - qemu_set_irq(s->ivec_irqs[irq_num], level); - } else { - APB_DPRINTF("%s: not enabled: lower irq %d\n", __func__, irq_num); - qemu_irq_lower(s->ivec_irqs[irq_num]); - } - } -} - -static int apb_pci_bridge_initfn(PCIDevice *dev) -{ - int rc; - - rc = pci_bridge_initfn(dev, TYPE_PCI_BUS); - if (rc < 0) { - return rc; - } - - /* - * command register: - * According to PCI bridge spec, after reset - * bus master bit is off - * memory space enable bit is off - * According to manual (805-1251.pdf). - * the reset value should be zero unless the boot pin is tied high - * (which is true) and thus it should be PCI_COMMAND_MEMORY. - */ - pci_set_word(dev->config + PCI_COMMAND, - PCI_COMMAND_MEMORY); - pci_set_word(dev->config + PCI_STATUS, - PCI_STATUS_FAST_BACK | PCI_STATUS_66MHZ | - PCI_STATUS_DEVSEL_MEDIUM); - return 0; -} - -PCIBus *pci_apb_init(hwaddr special_base, - hwaddr mem_base, - qemu_irq *ivec_irqs, PCIBus **bus2, PCIBus **bus3, - qemu_irq **pbm_irqs) -{ - DeviceState *dev; - SysBusDevice *s; - APBState *d; - PCIDevice *pci_dev; - PCIBridge *br; - - /* Ultrasparc PBM main bus */ - dev = qdev_create(NULL, "pbm"); - qdev_init_nofail(dev); - s = SYS_BUS_DEVICE(dev); - /* apb_config */ - sysbus_mmio_map(s, 0, special_base); - /* PCI configuration space */ - sysbus_mmio_map(s, 1, special_base + 0x1000000ULL); - /* pci_ioport */ - sysbus_mmio_map(s, 2, special_base + 0x2000000ULL); - d = FROM_SYSBUS(APBState, s); - - memory_region_init(&d->pci_mmio, "pci-mmio", 0x100000000ULL); - memory_region_add_subregion(get_system_memory(), mem_base, &d->pci_mmio); - - d->bus = pci_register_bus(&d->busdev.qdev, "pci", - pci_apb_set_irq, pci_pbm_map_irq, d, - &d->pci_mmio, - get_system_io(), - 0, 32, TYPE_PCI_BUS); - - *pbm_irqs = d->pbm_irqs; - d->ivec_irqs = ivec_irqs; - - pci_create_simple(d->bus, 0, "pbm-pci"); - - /* APB secondary busses */ - pci_dev = pci_create_multifunction(d->bus, PCI_DEVFN(1, 0), true, - "pbm-bridge"); - br = DO_UPCAST(PCIBridge, dev, pci_dev); - pci_bridge_map_irq(br, "Advanced PCI Bus secondary bridge 1", - pci_apb_map_irq); - qdev_init_nofail(&pci_dev->qdev); - *bus2 = pci_bridge_get_sec_bus(br); - - pci_dev = pci_create_multifunction(d->bus, PCI_DEVFN(1, 1), true, - "pbm-bridge"); - br = DO_UPCAST(PCIBridge, dev, pci_dev); - pci_bridge_map_irq(br, "Advanced PCI Bus secondary bridge 2", - pci_apb_map_irq); - qdev_init_nofail(&pci_dev->qdev); - *bus3 = pci_bridge_get_sec_bus(br); - - return d->bus; -} - -static void pci_pbm_reset(DeviceState *d) -{ - unsigned int i; - APBState *s = container_of(d, APBState, busdev.qdev); - - for (i = 0; i < 8; i++) { - s->pci_irq_map[i] &= PBM_PCI_IMR_MASK; - } - for (i = 0; i < 32; i++) { - s->obio_irq_map[i] &= PBM_PCI_IMR_MASK; - } - - if (s->nr_resets++ == 0) { - /* Power on reset */ - s->reset_control = POR; - } -} - -static const MemoryRegionOps pci_config_ops = { - .read = apb_pci_config_read, - .write = apb_pci_config_write, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -static int pci_pbm_init_device(SysBusDevice *dev) -{ - APBState *s; - unsigned int i; - - s = FROM_SYSBUS(APBState, dev); - for (i = 0; i < 8; i++) { - s->pci_irq_map[i] = (0x1f << 6) | (i << 2); - } - for (i = 0; i < 32; i++) { - s->obio_irq_map[i] = ((0x1f << 6) | 0x20) + i; - } - s->pbm_irqs = qemu_allocate_irqs(pci_apb_set_irq, s, MAX_IVEC); - - /* apb_config */ - memory_region_init_io(&s->apb_config, &apb_config_ops, s, "apb-config", - 0x10000); - /* at region 0 */ - sysbus_init_mmio(dev, &s->apb_config); - - memory_region_init_io(&s->pci_config, &pci_config_ops, s, "apb-pci-config", - 0x1000000); - /* at region 1 */ - sysbus_init_mmio(dev, &s->pci_config); - - /* pci_ioport */ - memory_region_init_io(&s->pci_ioport, &pci_ioport_ops, s, - "apb-pci-ioport", 0x10000); - /* at region 2 */ - sysbus_init_mmio(dev, &s->pci_ioport); - - return 0; -} - -static int pbm_pci_host_init(PCIDevice *d) -{ - pci_set_word(d->config + PCI_COMMAND, - PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); - pci_set_word(d->config + PCI_STATUS, - PCI_STATUS_FAST_BACK | PCI_STATUS_66MHZ | - PCI_STATUS_DEVSEL_MEDIUM); - return 0; -} - -static void pbm_pci_host_class_init(ObjectClass *klass, void *data) -{ - PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - - k->init = pbm_pci_host_init; - k->vendor_id = PCI_VENDOR_ID_SUN; - k->device_id = PCI_DEVICE_ID_SUN_SABRE; - k->class_id = PCI_CLASS_BRIDGE_HOST; -} - -static const TypeInfo pbm_pci_host_info = { - .name = "pbm-pci", - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(PCIDevice), - .class_init = pbm_pci_host_class_init, -}; - -static void pbm_host_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - - k->init = pci_pbm_init_device; - dc->reset = pci_pbm_reset; -} - -static const TypeInfo pbm_host_info = { - .name = "pbm", - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(APBState), - .class_init = pbm_host_class_init, -}; - -static void pbm_pci_bridge_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - - k->init = apb_pci_bridge_initfn; - k->exit = pci_bridge_exitfn; - k->vendor_id = PCI_VENDOR_ID_SUN; - k->device_id = PCI_DEVICE_ID_SUN_SIMBA; - k->revision = 0x11; - k->config_write = pci_bridge_write_config; - k->is_bridge = 1; - dc->reset = pci_bridge_reset; - dc->vmsd = &vmstate_pci_device; -} - -static const TypeInfo pbm_pci_bridge_info = { - .name = "pbm-bridge", - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(PCIBridge), - .class_init = pbm_pci_bridge_class_init, -}; - -static void pbm_register_types(void) -{ - type_register_static(&pbm_host_info); - type_register_static(&pbm_pci_host_info); - type_register_static(&pbm_pci_bridge_info); -} - -type_init(pbm_register_types) |