diff options
Diffstat (limited to 'hw/pci-host/pnv_phb4_pec.c')
| -rw-r--r-- | hw/pci-host/pnv_phb4_pec.c | 347 |
1 files changed, 24 insertions, 323 deletions
diff --git a/hw/pci-host/pnv_phb4_pec.c b/hw/pci-host/pnv_phb4_pec.c index f3e4fa0c82..7fe7f1f007 100644 --- a/hw/pci-host/pnv_phb4_pec.c +++ b/hw/pci-host/pnv_phb4_pec.c @@ -19,6 +19,7 @@ #include "hw/pci/pci_bus.h" #include "hw/ppc/pnv.h" #include "hw/qdev-properties.h" +#include "sysemu/sysemu.h" #include <libfdt.h> @@ -111,258 +112,6 @@ static const MemoryRegionOps pnv_pec_pci_xscom_ops = { .endianness = DEVICE_BIG_ENDIAN, }; -static uint64_t pnv_pec_stk_nest_xscom_read(void *opaque, hwaddr addr, - unsigned size) -{ - PnvPhb4PecStack *stack = PNV_PHB4_PEC_STACK(opaque); - uint32_t reg = addr >> 3; - - /* TODO: add list of allowed registers and error out if not */ - return stack->nest_regs[reg]; -} - -static void pnv_pec_stk_update_map(PnvPhb4PecStack *stack) -{ - PnvPhb4PecState *pec = stack->pec; - MemoryRegion *sysmem = get_system_memory(); - uint64_t bar_en = stack->nest_regs[PEC_NEST_STK_BAR_EN]; - uint64_t bar, mask, size; - char name[64]; - - /* - * NOTE: This will really not work well if those are remapped - * after the PHB has created its sub regions. We could do better - * if we had a way to resize regions but we don't really care - * that much in practice as the stuff below really only happens - * once early during boot - */ - - /* Handle unmaps */ - if (memory_region_is_mapped(&stack->mmbar0) && - !(bar_en & PEC_NEST_STK_BAR_EN_MMIO0)) { - memory_region_del_subregion(sysmem, &stack->mmbar0); - } - if (memory_region_is_mapped(&stack->mmbar1) && - !(bar_en & PEC_NEST_STK_BAR_EN_MMIO1)) { - memory_region_del_subregion(sysmem, &stack->mmbar1); - } - if (memory_region_is_mapped(&stack->phbbar) && - !(bar_en & PEC_NEST_STK_BAR_EN_PHB)) { - memory_region_del_subregion(sysmem, &stack->phbbar); - } - if (memory_region_is_mapped(&stack->intbar) && - !(bar_en & PEC_NEST_STK_BAR_EN_INT)) { - memory_region_del_subregion(sysmem, &stack->intbar); - } - - /* Update PHB */ - pnv_phb4_update_regions(stack); - - /* Handle maps */ - if (!memory_region_is_mapped(&stack->mmbar0) && - (bar_en & PEC_NEST_STK_BAR_EN_MMIO0)) { - bar = stack->nest_regs[PEC_NEST_STK_MMIO_BAR0] >> 8; - mask = stack->nest_regs[PEC_NEST_STK_MMIO_BAR0_MASK]; - size = ((~mask) >> 8) + 1; - snprintf(name, sizeof(name), "pec-%d.%d-stack-%d-mmio0", - pec->chip_id, pec->index, stack->stack_no); - memory_region_init(&stack->mmbar0, OBJECT(stack), name, size); - memory_region_add_subregion(sysmem, bar, &stack->mmbar0); - stack->mmio0_base = bar; - stack->mmio0_size = size; - } - if (!memory_region_is_mapped(&stack->mmbar1) && - (bar_en & PEC_NEST_STK_BAR_EN_MMIO1)) { - bar = stack->nest_regs[PEC_NEST_STK_MMIO_BAR1] >> 8; - mask = stack->nest_regs[PEC_NEST_STK_MMIO_BAR1_MASK]; - size = ((~mask) >> 8) + 1; - snprintf(name, sizeof(name), "pec-%d.%d-stack-%d-mmio1", - pec->chip_id, pec->index, stack->stack_no); - memory_region_init(&stack->mmbar1, OBJECT(stack), name, size); - memory_region_add_subregion(sysmem, bar, &stack->mmbar1); - stack->mmio1_base = bar; - stack->mmio1_size = size; - } - if (!memory_region_is_mapped(&stack->phbbar) && - (bar_en & PEC_NEST_STK_BAR_EN_PHB)) { - bar = stack->nest_regs[PEC_NEST_STK_PHB_REGS_BAR] >> 8; - size = PNV_PHB4_NUM_REGS << 3; - snprintf(name, sizeof(name), "pec-%d.%d-stack-%d-phb", - pec->chip_id, pec->index, stack->stack_no); - memory_region_init(&stack->phbbar, OBJECT(stack), name, size); - memory_region_add_subregion(sysmem, bar, &stack->phbbar); - } - if (!memory_region_is_mapped(&stack->intbar) && - (bar_en & PEC_NEST_STK_BAR_EN_INT)) { - bar = stack->nest_regs[PEC_NEST_STK_INT_BAR] >> 8; - size = PNV_PHB4_MAX_INTs << 16; - snprintf(name, sizeof(name), "pec-%d.%d-stack-%d-int", - stack->pec->chip_id, stack->pec->index, stack->stack_no); - memory_region_init(&stack->intbar, OBJECT(stack), name, size); - memory_region_add_subregion(sysmem, bar, &stack->intbar); - } - - /* Update PHB */ - pnv_phb4_update_regions(stack); -} - -static void pnv_pec_stk_nest_xscom_write(void *opaque, hwaddr addr, - uint64_t val, unsigned size) -{ - PnvPhb4PecStack *stack = PNV_PHB4_PEC_STACK(opaque); - PnvPhb4PecState *pec = stack->pec; - uint32_t reg = addr >> 3; - - switch (reg) { - case PEC_NEST_STK_PCI_NEST_FIR: - stack->nest_regs[PEC_NEST_STK_PCI_NEST_FIR] = val; - break; - case PEC_NEST_STK_PCI_NEST_FIR_CLR: - stack->nest_regs[PEC_NEST_STK_PCI_NEST_FIR] &= val; - break; - case PEC_NEST_STK_PCI_NEST_FIR_SET: - stack->nest_regs[PEC_NEST_STK_PCI_NEST_FIR] |= val; - break; - case PEC_NEST_STK_PCI_NEST_FIR_MSK: - stack->nest_regs[PEC_NEST_STK_PCI_NEST_FIR_MSK] = val; - break; - case PEC_NEST_STK_PCI_NEST_FIR_MSKC: - stack->nest_regs[PEC_NEST_STK_PCI_NEST_FIR_MSK] &= val; - break; - case PEC_NEST_STK_PCI_NEST_FIR_MSKS: - stack->nest_regs[PEC_NEST_STK_PCI_NEST_FIR_MSK] |= val; - break; - case PEC_NEST_STK_PCI_NEST_FIR_ACT0: - case PEC_NEST_STK_PCI_NEST_FIR_ACT1: - stack->nest_regs[reg] = val; - break; - case PEC_NEST_STK_PCI_NEST_FIR_WOF: - stack->nest_regs[reg] = 0; - break; - case PEC_NEST_STK_ERR_REPORT_0: - case PEC_NEST_STK_ERR_REPORT_1: - case PEC_NEST_STK_PBCQ_GNRL_STATUS: - /* Flag error ? */ - break; - case PEC_NEST_STK_PBCQ_MODE: - stack->nest_regs[reg] = val & 0xff00000000000000ull; - break; - case PEC_NEST_STK_MMIO_BAR0: - case PEC_NEST_STK_MMIO_BAR0_MASK: - case PEC_NEST_STK_MMIO_BAR1: - case PEC_NEST_STK_MMIO_BAR1_MASK: - if (stack->nest_regs[PEC_NEST_STK_BAR_EN] & - (PEC_NEST_STK_BAR_EN_MMIO0 | - PEC_NEST_STK_BAR_EN_MMIO1)) { - phb_pec_error(pec, "Changing enabled BAR unsupported\n"); - } - stack->nest_regs[reg] = val & 0xffffffffff000000ull; - break; - case PEC_NEST_STK_PHB_REGS_BAR: - if (stack->nest_regs[PEC_NEST_STK_BAR_EN] & PEC_NEST_STK_BAR_EN_PHB) { - phb_pec_error(pec, "Changing enabled BAR unsupported\n"); - } - stack->nest_regs[reg] = val & 0xffffffffffc00000ull; - break; - case PEC_NEST_STK_INT_BAR: - if (stack->nest_regs[PEC_NEST_STK_BAR_EN] & PEC_NEST_STK_BAR_EN_INT) { - phb_pec_error(pec, "Changing enabled BAR unsupported\n"); - } - stack->nest_regs[reg] = val & 0xfffffff000000000ull; - break; - case PEC_NEST_STK_BAR_EN: - stack->nest_regs[reg] = val & 0xf000000000000000ull; - pnv_pec_stk_update_map(stack); - break; - case PEC_NEST_STK_DATA_FRZ_TYPE: - case PEC_NEST_STK_PBCQ_TUN_BAR: - /* Not used for now */ - stack->nest_regs[reg] = val; - break; - default: - qemu_log_mask(LOG_UNIMP, "phb4_pec: nest_xscom_write 0x%"HWADDR_PRIx - "=%"PRIx64"\n", addr, val); - } -} - -static const MemoryRegionOps pnv_pec_stk_nest_xscom_ops = { - .read = pnv_pec_stk_nest_xscom_read, - .write = pnv_pec_stk_nest_xscom_write, - .valid.min_access_size = 8, - .valid.max_access_size = 8, - .impl.min_access_size = 8, - .impl.max_access_size = 8, - .endianness = DEVICE_BIG_ENDIAN, -}; - -static uint64_t pnv_pec_stk_pci_xscom_read(void *opaque, hwaddr addr, - unsigned size) -{ - PnvPhb4PecStack *stack = PNV_PHB4_PEC_STACK(opaque); - uint32_t reg = addr >> 3; - - /* TODO: add list of allowed registers and error out if not */ - return stack->pci_regs[reg]; -} - -static void pnv_pec_stk_pci_xscom_write(void *opaque, hwaddr addr, - uint64_t val, unsigned size) -{ - PnvPhb4PecStack *stack = PNV_PHB4_PEC_STACK(opaque); - uint32_t reg = addr >> 3; - - switch (reg) { - case PEC_PCI_STK_PCI_FIR: - stack->nest_regs[reg] = val; - break; - case PEC_PCI_STK_PCI_FIR_CLR: - stack->nest_regs[PEC_PCI_STK_PCI_FIR] &= val; - break; - case PEC_PCI_STK_PCI_FIR_SET: - stack->nest_regs[PEC_PCI_STK_PCI_FIR] |= val; - break; - case PEC_PCI_STK_PCI_FIR_MSK: - stack->nest_regs[reg] = val; - break; - case PEC_PCI_STK_PCI_FIR_MSKC: - stack->nest_regs[PEC_PCI_STK_PCI_FIR_MSK] &= val; - break; - case PEC_PCI_STK_PCI_FIR_MSKS: - stack->nest_regs[PEC_PCI_STK_PCI_FIR_MSK] |= val; - break; - case PEC_PCI_STK_PCI_FIR_ACT0: - case PEC_PCI_STK_PCI_FIR_ACT1: - stack->nest_regs[reg] = val; - break; - case PEC_PCI_STK_PCI_FIR_WOF: - stack->nest_regs[reg] = 0; - break; - case PEC_PCI_STK_ETU_RESET: - stack->nest_regs[reg] = val & 0x8000000000000000ull; - /* TODO: Implement reset */ - break; - case PEC_PCI_STK_PBAIB_ERR_REPORT: - break; - case PEC_PCI_STK_PBAIB_TX_CMD_CRED: - case PEC_PCI_STK_PBAIB_TX_DAT_CRED: - stack->nest_regs[reg] = val; - break; - default: - qemu_log_mask(LOG_UNIMP, "phb4_pec_stk: pci_xscom_write 0x%"HWADDR_PRIx - "=%"PRIx64"\n", addr, val); - } -} - -static const MemoryRegionOps pnv_pec_stk_pci_xscom_ops = { - .read = pnv_pec_stk_pci_xscom_read, - .write = pnv_pec_stk_pci_xscom_write, - .valid.min_access_size = 8, - .valid.max_access_size = 8, - .impl.min_access_size = 8, - .impl.max_access_size = 8, - .endianness = DEVICE_BIG_ENDIAN, -}; - static void pnv_pec_instance_init(Object *obj) { PnvPhb4PecState *pec = PNV_PHB4_PEC(obj); @@ -374,19 +123,6 @@ static void pnv_pec_instance_init(Object *obj) } } -static int pnv_pec_phb_offset(PnvPhb4PecState *pec) -{ - PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(pec); - int index = pec->index; - int offset = 0; - - while (index--) { - offset += pecc->num_stacks[index]; - } - - return offset; -} - static void pnv_pec_realize(DeviceState *dev, Error **errp) { PnvPhb4PecState *pec = PNV_PHB4_PEC(dev); @@ -405,10 +141,8 @@ static void pnv_pec_realize(DeviceState *dev, Error **errp) for (i = 0; i < pec->num_stacks; i++) { PnvPhb4PecStack *stack = &pec->stacks[i]; Object *stk_obj = OBJECT(stack); - int phb_id = pnv_pec_phb_offset(pec) + i; object_property_set_int(stk_obj, "stack-no", i, &error_abort); - object_property_set_int(stk_obj, "phb-id", phb_id, &error_abort); object_property_set_link(stk_obj, "pec", OBJECT(pec), &error_abort); if (!qdev_realize(DEVICE(stk_obj), NULL, errp)) { return; @@ -462,8 +196,7 @@ static int pnv_pec_dt_xscom(PnvXScomInterface *dev, void *fdt, pecc->compat_size))); for (i = 0; i < pec->num_stacks; i++) { - PnvPhb4PecStack *stack = &pec->stacks[i]; - PnvPHB4 *phb = &stack->phb; + int phb_id = pnv_phb4_pec_get_phb_id(pec, i); int stk_offset; name = g_strdup_printf("stack@%x", i); @@ -473,7 +206,7 @@ static int pnv_pec_dt_xscom(PnvXScomInterface *dev, void *fdt, _FDT((fdt_setprop(fdt, stk_offset, "compatible", pecc->stk_compat, pecc->stk_compat_size))); _FDT((fdt_setprop_cell(fdt, stk_offset, "reg", i))); - _FDT((fdt_setprop_cell(fdt, stk_offset, "ibm,phb-index", phb->phb_id))); + _FDT((fdt_setprop_cell(fdt, stk_offset, "ibm,phb-index", phb_id))); } return 0; @@ -543,69 +276,38 @@ static const TypeInfo pnv_pec_type_info = { } }; -static void pnv_pec_stk_instance_init(Object *obj) +static void pnv_pec_stk_default_phb_realize(PnvPhb4PecStack *stack, + Error **errp) { - PnvPhb4PecStack *stack = PNV_PHB4_PEC_STACK(obj); - - object_initialize_child(obj, "phb", &stack->phb, TYPE_PNV_PHB4); - object_property_add_alias(obj, "phb-id", OBJECT(&stack->phb), "index"); -} - -static void pnv_pec_stk_realize(DeviceState *dev, Error **errp) -{ - PnvPhb4PecStack *stack = PNV_PHB4_PEC_STACK(dev); PnvPhb4PecState *pec = stack->pec; PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(pec); - PnvChip *chip = pec->chip; - uint32_t pec_nest_base; - uint32_t pec_pci_base; - char name[64]; - - assert(pec); - - /* Initialize the XSCOM regions for the stack registers */ - snprintf(name, sizeof(name), "xscom-pec-%d.%d-nest-stack-%d", - pec->chip_id, pec->index, stack->stack_no); - pnv_xscom_region_init(&stack->nest_regs_mr, OBJECT(stack), - &pnv_pec_stk_nest_xscom_ops, stack, name, - PHB4_PEC_NEST_STK_REGS_COUNT); - - snprintf(name, sizeof(name), "xscom-pec-%d.%d-pci-stack-%d", - pec->chip_id, pec->index, stack->stack_no); - pnv_xscom_region_init(&stack->pci_regs_mr, OBJECT(stack), - &pnv_pec_stk_pci_xscom_ops, stack, name, - PHB4_PEC_PCI_STK_REGS_COUNT); + int phb_id = pnv_phb4_pec_get_phb_id(pec, stack->stack_no); - /* PHB pass-through */ - snprintf(name, sizeof(name), "xscom-pec-%d.%d-pci-stack-%d-phb", - pec->chip_id, pec->index, stack->stack_no); - pnv_xscom_region_init(&stack->phb_regs_mr, OBJECT(&stack->phb), - &pnv_phb4_xscom_ops, &stack->phb, name, 0x40); + stack->phb = PNV_PHB4(qdev_new(TYPE_PNV_PHB4)); - object_property_set_int(OBJECT(&stack->phb), "chip-id", pec->chip_id, + object_property_set_int(OBJECT(stack->phb), "chip-id", pec->chip_id, &error_fatal); - object_property_set_int(OBJECT(&stack->phb), "version", pecc->version, + object_property_set_int(OBJECT(stack->phb), "index", phb_id, &error_fatal); - object_property_set_link(OBJECT(&stack->phb), "stack", OBJECT(stack), + object_property_set_int(OBJECT(stack->phb), "version", pecc->version, + &error_fatal); + object_property_set_link(OBJECT(stack->phb), "stack", OBJECT(stack), &error_abort); - if (!sysbus_realize(SYS_BUS_DEVICE(&stack->phb), errp)) { + + if (!sysbus_realize(SYS_BUS_DEVICE(stack->phb), errp)) { + return; + } +} + +static void pnv_pec_stk_realize(DeviceState *dev, Error **errp) +{ + PnvPhb4PecStack *stack = PNV_PHB4_PEC_STACK(dev); + + if (!defaults_enabled()) { return; } - pec_nest_base = pecc->xscom_nest_base(pec); - pec_pci_base = pecc->xscom_pci_base(pec); - - /* Populate the XSCOM address space. */ - pnv_xscom_add_subregion(chip, - pec_nest_base + 0x40 * (stack->stack_no + 1), - &stack->nest_regs_mr); - pnv_xscom_add_subregion(chip, - pec_pci_base + 0x40 * (stack->stack_no + 1), - &stack->pci_regs_mr); - pnv_xscom_add_subregion(chip, - pec_pci_base + PNV9_XSCOM_PEC_PCI_STK0 + - 0x40 * stack->stack_no, - &stack->phb_regs_mr); + pnv_pec_stk_default_phb_realize(stack, errp); } static Property pnv_pec_stk_properties[] = { @@ -630,7 +332,6 @@ static const TypeInfo pnv_pec_stk_type_info = { .name = TYPE_PNV_PHB4_PEC_STACK, .parent = TYPE_DEVICE, .instance_size = sizeof(PnvPhb4PecStack), - .instance_init = pnv_pec_stk_instance_init, .class_init = pnv_pec_stk_class_init, .interfaces = (InterfaceInfo[]) { { TYPE_PNV_XSCOM_INTERFACE }, |