diff options
Diffstat (limited to 'hw/lpc_ich9.c')
| -rw-r--r-- | hw/lpc_ich9.c | 628 |
1 files changed, 0 insertions, 628 deletions
diff --git a/hw/lpc_ich9.c b/hw/lpc_ich9.c deleted file mode 100644 index ff0a3092d5..0000000000 --- a/hw/lpc_ich9.c +++ /dev/null @@ -1,628 +0,0 @@ -/* - * QEMU ICH9 Emulation - * - * Copyright (c) 2006 Fabrice Bellard - * Copyright (c) 2009, 2010, 2011 - * Isaku Yamahata <yamahata at valinux co jp> - * VA Linux Systems Japan K.K. - * Copyright (C) 2012 Jason Baron <jbaron@redhat.com> - * - * This is based on piix_pci.c, but heavily modified. - * - * 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. - */ -#include "qemu-common.h" -#include "hw/hw.h" -#include "qemu/range.h" -#include "hw/isa.h" -#include "hw/sysbus.h" -#include "hw/pc.h" -#include "hw/apm.h" -#include "hw/ioapic.h" -#include "hw/pci/pci.h" -#include "hw/pci/pcie_host.h" -#include "hw/pci/pci_bridge.h" -#include "hw/ich9.h" -#include "hw/acpi.h" -#include "hw/acpi_ich9.h" -#include "hw/pam.h" -#include "hw/pci/pci_bus.h" -#include "exec/address-spaces.h" -#include "sysemu/sysemu.h" - -static int ich9_lpc_sci_irq(ICH9LPCState *lpc); - -/*****************************************************************************/ -/* ICH9 LPC PCI to ISA bridge */ - -static void ich9_lpc_reset(DeviceState *qdev); - -/* chipset configuration register - * to access chipset configuration registers, pci_[sg]et_{byte, word, long} - * are used. - * Although it's not pci configuration space, it's little endian as Intel. - */ - -static void ich9_cc_update_ir(uint8_t irr[PCI_NUM_PINS], uint16_t ir) -{ - int intx; - for (intx = 0; intx < PCI_NUM_PINS; intx++) { - irr[intx] = (ir >> (intx * ICH9_CC_DIR_SHIFT)) & ICH9_CC_DIR_MASK; - } -} - -static void ich9_cc_update(ICH9LPCState *lpc) -{ - int slot; - int pci_intx; - - const int reg_offsets[] = { - ICH9_CC_D25IR, - ICH9_CC_D26IR, - ICH9_CC_D27IR, - ICH9_CC_D28IR, - ICH9_CC_D29IR, - ICH9_CC_D30IR, - ICH9_CC_D31IR, - }; - const int *offset; - - /* D{25 - 31}IR, but D30IR is read only to 0. */ - for (slot = 25, offset = reg_offsets; slot < 32; slot++, offset++) { - if (slot == 30) { - continue; - } - ich9_cc_update_ir(lpc->irr[slot], - pci_get_word(lpc->chip_config + *offset)); - } - - /* - * D30: DMI2PCI bridge - * It is arbitrarily decided how INTx lines of PCI devicesbehind the bridge - * are connected to pirq lines. Our choice is PIRQ[E-H]. - * INT[A-D] are connected to PIRQ[E-H] - */ - for (pci_intx = 0; pci_intx < PCI_NUM_PINS; pci_intx++) { - lpc->irr[30][pci_intx] = pci_intx + 4; - } -} - -static void ich9_cc_init(ICH9LPCState *lpc) -{ - int slot; - int intx; - - /* the default irq routing is arbitrary as long as it matches with - * acpi irq routing table. - * The one that is incompatible with piix_pci(= bochs) one is - * intentionally chosen to let the users know that the different - * board is used. - * - * int[A-D] -> pirq[E-F] - * avoid pirq A-D because they are used for pci express port - */ - for (slot = 0; slot < PCI_SLOT_MAX; slot++) { - for (intx = 0; intx < PCI_NUM_PINS; intx++) { - lpc->irr[slot][intx] = (slot + intx) % 4 + 4; - } - } - ich9_cc_update(lpc); -} - -static void ich9_cc_reset(ICH9LPCState *lpc) -{ - uint8_t *c = lpc->chip_config; - - memset(lpc->chip_config, 0, sizeof(lpc->chip_config)); - - pci_set_long(c + ICH9_CC_D31IR, ICH9_CC_DIR_DEFAULT); - pci_set_long(c + ICH9_CC_D30IR, ICH9_CC_D30IR_DEFAULT); - pci_set_long(c + ICH9_CC_D29IR, ICH9_CC_DIR_DEFAULT); - pci_set_long(c + ICH9_CC_D28IR, ICH9_CC_DIR_DEFAULT); - pci_set_long(c + ICH9_CC_D27IR, ICH9_CC_DIR_DEFAULT); - pci_set_long(c + ICH9_CC_D26IR, ICH9_CC_DIR_DEFAULT); - pci_set_long(c + ICH9_CC_D25IR, ICH9_CC_DIR_DEFAULT); - - ich9_cc_update(lpc); -} - -static void ich9_cc_addr_len(uint64_t *addr, unsigned *len) -{ - *addr &= ICH9_CC_ADDR_MASK; - if (*addr + *len >= ICH9_CC_SIZE) { - *len = ICH9_CC_SIZE - *addr; - } -} - -/* val: little endian */ -static void ich9_cc_write(void *opaque, hwaddr addr, - uint64_t val, unsigned len) -{ - ICH9LPCState *lpc = (ICH9LPCState *)opaque; - - ich9_cc_addr_len(&addr, &len); - memcpy(lpc->chip_config + addr, &val, len); - pci_bus_fire_intx_routing_notifier(lpc->d.bus); - ich9_cc_update(lpc); -} - -/* return value: little endian */ -static uint64_t ich9_cc_read(void *opaque, hwaddr addr, - unsigned len) -{ - ICH9LPCState *lpc = (ICH9LPCState *)opaque; - - uint32_t val = 0; - ich9_cc_addr_len(&addr, &len); - memcpy(&val, lpc->chip_config + addr, len); - return val; -} - -/* IRQ routing */ -/* */ -static void ich9_lpc_rout(uint8_t pirq_rout, int *pic_irq, int *pic_dis) -{ - *pic_irq = pirq_rout & ICH9_LPC_PIRQ_ROUT_MASK; - *pic_dis = pirq_rout & ICH9_LPC_PIRQ_ROUT_IRQEN; -} - -static void ich9_lpc_pic_irq(ICH9LPCState *lpc, int pirq_num, - int *pic_irq, int *pic_dis) -{ - switch (pirq_num) { - case 0 ... 3: /* A-D */ - ich9_lpc_rout(lpc->d.config[ICH9_LPC_PIRQA_ROUT + pirq_num], - pic_irq, pic_dis); - return; - case 4 ... 7: /* E-H */ - ich9_lpc_rout(lpc->d.config[ICH9_LPC_PIRQE_ROUT + (pirq_num - 4)], - pic_irq, pic_dis); - return; - default: - break; - } - abort(); -} - -/* pic_irq: i8254 irq 0-15 */ -static void ich9_lpc_update_pic(ICH9LPCState *lpc, int pic_irq) -{ - int i, pic_level; - - /* The pic level is the logical OR of all the PCI irqs mapped to it */ - pic_level = 0; - for (i = 0; i < ICH9_LPC_NB_PIRQS; i++) { - int tmp_irq; - int tmp_dis; - ich9_lpc_pic_irq(lpc, i, &tmp_irq, &tmp_dis); - if (!tmp_dis && pic_irq == tmp_irq) { - pic_level |= pci_bus_get_irq_level(lpc->d.bus, i); - } - } - if (pic_irq == ich9_lpc_sci_irq(lpc)) { - pic_level |= lpc->sci_level; - } - - qemu_set_irq(lpc->pic[pic_irq], pic_level); -} - -/* pirq: pirq[A-H] 0-7*/ -static void ich9_lpc_update_by_pirq(ICH9LPCState *lpc, int pirq) -{ - int pic_irq; - int pic_dis; - - ich9_lpc_pic_irq(lpc, pirq, &pic_irq, &pic_dis); - assert(pic_irq < ICH9_LPC_PIC_NUM_PINS); - if (pic_dis) { - return; - } - - ich9_lpc_update_pic(lpc, pic_irq); -} - -/* APIC mode: GSIx: PIRQ[A-H] -> GSI 16, ... no pirq shares same APIC pins. */ -static int ich9_pirq_to_gsi(int pirq) -{ - return pirq + ICH9_LPC_PIC_NUM_PINS; -} - -static int ich9_gsi_to_pirq(int gsi) -{ - return gsi - ICH9_LPC_PIC_NUM_PINS; -} - -static void ich9_lpc_update_apic(ICH9LPCState *lpc, int gsi) -{ - int level = 0; - - if (gsi >= ICH9_LPC_PIC_NUM_PINS) { - level |= pci_bus_get_irq_level(lpc->d.bus, ich9_gsi_to_pirq(gsi)); - } - if (gsi == ich9_lpc_sci_irq(lpc)) { - level |= lpc->sci_level; - } - - qemu_set_irq(lpc->ioapic[gsi], level); -} - -void ich9_lpc_set_irq(void *opaque, int pirq, int level) -{ - ICH9LPCState *lpc = opaque; - - assert(0 <= pirq); - assert(pirq < ICH9_LPC_NB_PIRQS); - - ich9_lpc_update_apic(lpc, ich9_pirq_to_gsi(pirq)); - ich9_lpc_update_by_pirq(lpc, pirq); -} - -/* return the pirq number (PIRQ[A-H]:0-7) corresponding to - * a given device irq pin. - */ -int ich9_lpc_map_irq(PCIDevice *pci_dev, int intx) -{ - BusState *bus = qdev_get_parent_bus(&pci_dev->qdev); - PCIBus *pci_bus = PCI_BUS(bus); - PCIDevice *lpc_pdev = - pci_bus->devices[PCI_DEVFN(ICH9_LPC_DEV, ICH9_LPC_FUNC)]; - ICH9LPCState *lpc = ICH9_LPC_DEVICE(lpc_pdev); - - return lpc->irr[PCI_SLOT(pci_dev->devfn)][intx]; -} - -PCIINTxRoute ich9_route_intx_pin_to_irq(void *opaque, int pirq_pin) -{ - ICH9LPCState *lpc = opaque; - PCIINTxRoute route; - int pic_irq; - int pic_dis; - - assert(0 <= pirq_pin); - assert(pirq_pin < ICH9_LPC_NB_PIRQS); - - route.mode = PCI_INTX_ENABLED; - ich9_lpc_pic_irq(lpc, pirq_pin, &pic_irq, &pic_dis); - if (!pic_dis) { - if (pic_irq < ICH9_LPC_PIC_NUM_PINS) { - route.irq = pic_irq; - } else { - route.mode = PCI_INTX_DISABLED; - route.irq = -1; - } - } else { - route.irq = ich9_pirq_to_gsi(pirq_pin); - } - - return route; -} - -static int ich9_lpc_sci_irq(ICH9LPCState *lpc) -{ - switch (lpc->d.config[ICH9_LPC_ACPI_CTRL] & - ICH9_LPC_ACPI_CTRL_SCI_IRQ_SEL_MASK) { - case ICH9_LPC_ACPI_CTRL_9: - return 9; - case ICH9_LPC_ACPI_CTRL_10: - return 10; - case ICH9_LPC_ACPI_CTRL_11: - return 11; - case ICH9_LPC_ACPI_CTRL_20: - return 20; - case ICH9_LPC_ACPI_CTRL_21: - return 21; - default: - /* reserved */ - break; - } - return -1; -} - -static void ich9_set_sci(void *opaque, int irq_num, int level) -{ - ICH9LPCState *lpc = opaque; - int irq; - - assert(irq_num == 0); - level = !!level; - if (level == lpc->sci_level) { - return; - } - lpc->sci_level = level; - - irq = ich9_lpc_sci_irq(lpc); - if (irq < 0) { - return; - } - - ich9_lpc_update_apic(lpc, irq); - if (irq < ICH9_LPC_PIC_NUM_PINS) { - ich9_lpc_update_pic(lpc, irq); - } -} - -void ich9_lpc_pm_init(PCIDevice *lpc_pci, qemu_irq cmos_s3) -{ - ICH9LPCState *lpc = ICH9_LPC_DEVICE(lpc_pci); - qemu_irq *sci_irq; - - sci_irq = qemu_allocate_irqs(ich9_set_sci, lpc, 1); - ich9_pm_init(lpc_pci, &lpc->pm, sci_irq[0], cmos_s3); - - ich9_lpc_reset(&lpc->d.qdev); -} - -/* APM */ - -static void ich9_apm_ctrl_changed(uint32_t val, void *arg) -{ - ICH9LPCState *lpc = arg; - - /* ACPI specs 3.0, 4.7.2.5 */ - acpi_pm1_cnt_update(&lpc->pm.acpi_regs, - val == ICH9_APM_ACPI_ENABLE, - val == ICH9_APM_ACPI_DISABLE); - - /* SMI_EN = PMBASE + 30. SMI control and enable register */ - if (lpc->pm.smi_en & ICH9_PMIO_SMI_EN_APMC_EN) { - cpu_interrupt(CPU(x86_env_get_cpu(first_cpu)), CPU_INTERRUPT_SMI); - } -} - -/* config:PMBASE */ -static void -ich9_lpc_pmbase_update(ICH9LPCState *lpc) -{ - uint32_t pm_io_base = pci_get_long(lpc->d.config + ICH9_LPC_PMBASE); - pm_io_base &= ICH9_LPC_PMBASE_BASE_ADDRESS_MASK; - - ich9_pm_iospace_update(&lpc->pm, pm_io_base); -} - -/* config:RBCA */ -static void ich9_lpc_rcba_update(ICH9LPCState *lpc, uint32_t rbca_old) -{ - uint32_t rbca = pci_get_long(lpc->d.config + ICH9_LPC_RCBA); - - if (rbca_old & ICH9_LPC_RCBA_EN) { - memory_region_del_subregion(get_system_memory(), &lpc->rbca_mem); - } - if (rbca & ICH9_LPC_RCBA_EN) { - memory_region_add_subregion_overlap(get_system_memory(), - rbca & ICH9_LPC_RCBA_BA_MASK, - &lpc->rbca_mem, 1); - } -} - -static int ich9_lpc_post_load(void *opaque, int version_id) -{ - ICH9LPCState *lpc = opaque; - - ich9_lpc_pmbase_update(lpc); - ich9_lpc_rcba_update(lpc, 0 /* disabled ICH9_LPC_RBCA_EN */); - return 0; -} - -static void ich9_lpc_config_write(PCIDevice *d, - uint32_t addr, uint32_t val, int len) -{ - ICH9LPCState *lpc = ICH9_LPC_DEVICE(d); - uint32_t rbca_old = pci_get_long(d->config + ICH9_LPC_RCBA); - - pci_default_write_config(d, addr, val, len); - if (ranges_overlap(addr, len, ICH9_LPC_PMBASE, 4)) { - ich9_lpc_pmbase_update(lpc); - } - if (ranges_overlap(addr, len, ICH9_LPC_RCBA, 4)) { - ich9_lpc_rcba_update(lpc, rbca_old); - } - if (ranges_overlap(addr, len, ICH9_LPC_PIRQA_ROUT, 4)) { - pci_bus_fire_intx_routing_notifier(lpc->d.bus); - } - if (ranges_overlap(addr, len, ICH9_LPC_PIRQE_ROUT, 4)) { - pci_bus_fire_intx_routing_notifier(lpc->d.bus); - } -} - -static void ich9_lpc_reset(DeviceState *qdev) -{ - PCIDevice *d = PCI_DEVICE(qdev); - ICH9LPCState *lpc = ICH9_LPC_DEVICE(d); - uint32_t rbca_old = pci_get_long(d->config + ICH9_LPC_RCBA); - int i; - - for (i = 0; i < 4; i++) { - pci_set_byte(d->config + ICH9_LPC_PIRQA_ROUT + i, - ICH9_LPC_PIRQ_ROUT_DEFAULT); - } - for (i = 0; i < 4; i++) { - pci_set_byte(d->config + ICH9_LPC_PIRQE_ROUT + i, - ICH9_LPC_PIRQ_ROUT_DEFAULT); - } - pci_set_byte(d->config + ICH9_LPC_ACPI_CTRL, ICH9_LPC_ACPI_CTRL_DEFAULT); - - pci_set_long(d->config + ICH9_LPC_PMBASE, ICH9_LPC_PMBASE_DEFAULT); - pci_set_long(d->config + ICH9_LPC_RCBA, ICH9_LPC_RCBA_DEFAULT); - - ich9_cc_reset(lpc); - - ich9_lpc_pmbase_update(lpc); - ich9_lpc_rcba_update(lpc, rbca_old); - - lpc->sci_level = 0; - lpc->rst_cnt = 0; -} - -static const MemoryRegionOps rbca_mmio_ops = { - .read = ich9_cc_read, - .write = ich9_cc_write, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static void ich9_lpc_machine_ready(Notifier *n, void *opaque) -{ - ICH9LPCState *s = container_of(n, ICH9LPCState, machine_ready); - uint8_t *pci_conf; - - pci_conf = s->d.config; - if (isa_is_ioport_assigned(0x3f8)) { - /* com1 */ - pci_conf[0x82] |= 0x01; - } - if (isa_is_ioport_assigned(0x2f8)) { - /* com2 */ - pci_conf[0x82] |= 0x02; - } - if (isa_is_ioport_assigned(0x378)) { - /* lpt */ - pci_conf[0x82] |= 0x04; - } - if (isa_is_ioport_assigned(0x3f0)) { - /* floppy */ - pci_conf[0x82] |= 0x08; - } -} - -/* reset control */ -static void ich9_rst_cnt_write(void *opaque, hwaddr addr, uint64_t val, - unsigned len) -{ - ICH9LPCState *lpc = opaque; - - if (val & 4) { - qemu_system_reset_request(); - return; - } - lpc->rst_cnt = val & 0xA; /* keep FULL_RST (bit 3) and SYS_RST (bit 1) */ -} - -static uint64_t ich9_rst_cnt_read(void *opaque, hwaddr addr, unsigned len) -{ - ICH9LPCState *lpc = opaque; - - return lpc->rst_cnt; -} - -static const MemoryRegionOps ich9_rst_cnt_ops = { - .read = ich9_rst_cnt_read, - .write = ich9_rst_cnt_write, - .endianness = DEVICE_LITTLE_ENDIAN -}; - -static int ich9_lpc_initfn(PCIDevice *d) -{ - ICH9LPCState *lpc = ICH9_LPC_DEVICE(d); - ISABus *isa_bus; - - isa_bus = isa_bus_new(&d->qdev, get_system_io()); - - pci_set_long(d->wmask + ICH9_LPC_PMBASE, - ICH9_LPC_PMBASE_BASE_ADDRESS_MASK); - - memory_region_init_io(&lpc->rbca_mem, &rbca_mmio_ops, lpc, - "lpc-rbca-mmio", ICH9_CC_SIZE); - - lpc->isa_bus = isa_bus; - - ich9_cc_init(lpc); - apm_init(d, &lpc->apm, ich9_apm_ctrl_changed, lpc); - - lpc->machine_ready.notify = ich9_lpc_machine_ready; - qemu_add_machine_init_done_notifier(&lpc->machine_ready); - - memory_region_init_io(&lpc->rst_cnt_mem, &ich9_rst_cnt_ops, lpc, - "lpc-reset-control", 1); - memory_region_add_subregion_overlap(pci_address_space_io(d), - ICH9_RST_CNT_IOPORT, &lpc->rst_cnt_mem, - 1); - - return 0; -} - -static bool ich9_rst_cnt_needed(void *opaque) -{ - ICH9LPCState *lpc = opaque; - - return (lpc->rst_cnt != 0); -} - -static const VMStateDescription vmstate_ich9_rst_cnt = { - .name = "ICH9LPC/rst_cnt", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT8(rst_cnt, ICH9LPCState), - VMSTATE_END_OF_LIST() - } -}; - -static const VMStateDescription vmstate_ich9_lpc = { - .name = "ICH9LPC", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, - .post_load = ich9_lpc_post_load, - .fields = (VMStateField[]) { - VMSTATE_PCI_DEVICE(d, ICH9LPCState), - VMSTATE_STRUCT(apm, ICH9LPCState, 0, vmstate_apm, APMState), - VMSTATE_STRUCT(pm, ICH9LPCState, 0, vmstate_ich9_pm, ICH9LPCPMRegs), - VMSTATE_UINT8_ARRAY(chip_config, ICH9LPCState, ICH9_CC_SIZE), - VMSTATE_UINT32(sci_level, ICH9LPCState), - VMSTATE_END_OF_LIST() - }, - .subsections = (VMStateSubsection[]) { - { - .vmsd = &vmstate_ich9_rst_cnt, - .needed = ich9_rst_cnt_needed - }, - { 0 } - } -}; - -static void ich9_lpc_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - - dc->reset = ich9_lpc_reset; - k->init = ich9_lpc_initfn; - dc->vmsd = &vmstate_ich9_lpc; - dc->no_user = 1; - k->config_write = ich9_lpc_config_write; - dc->desc = "ICH9 LPC bridge"; - k->vendor_id = PCI_VENDOR_ID_INTEL; - k->device_id = PCI_DEVICE_ID_INTEL_ICH9_8; - k->revision = ICH9_A2_LPC_REVISION; - k->class_id = PCI_CLASS_BRIDGE_ISA; - -} - -static const TypeInfo ich9_lpc_info = { - .name = TYPE_ICH9_LPC_DEVICE, - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(struct ICH9LPCState), - .class_init = ich9_lpc_class_init, -}; - -static void ich9_lpc_register(void) -{ - type_register_static(&ich9_lpc_info); -} - -type_init(ich9_lpc_register); |