diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ppc/pnv.c | 22 | ||||
| -rw-r--r-- | hw/ppc/pnv_lpc.c | 200 |
2 files changed, 221 insertions, 1 deletions
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 6625562d27..918fae057b 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -306,6 +306,8 @@ static void pnv_chip_power9_dt_populate(PnvChip *chip, void *fdt) if (chip->ram_size) { pnv_dt_memory(fdt, chip->chip_id, chip->ram_start, chip->ram_size); } + + pnv_dt_lpc(chip, fdt, 0); } static void pnv_dt_rtc(ISADevice *d, void *fdt, int lpc_off) @@ -547,7 +549,8 @@ static ISABus *pnv_chip_power8nvl_isa_create(PnvChip *chip, Error **errp) static ISABus *pnv_chip_power9_isa_create(PnvChip *chip, Error **errp) { - return NULL; + Pnv9Chip *chip9 = PNV9_CHIP(chip); + return pnv_lpc_isa_create(&chip9->lpc, false, errp); } static ISABus *pnv_isa_create(PnvChip *chip, Error **errp) @@ -948,6 +951,11 @@ static void pnv_chip_power9_instance_init(Object *obj) TYPE_PNV9_PSI, &error_abort, NULL); object_property_add_const_link(OBJECT(&chip9->psi), "chip", obj, &error_abort); + + object_initialize_child(obj, "lpc", &chip9->lpc, sizeof(chip9->lpc), + TYPE_PNV9_LPC, &error_abort, NULL); + object_property_add_const_link(OBJECT(&chip9->lpc), "psi", + OBJECT(&chip9->psi), &error_abort); } static void pnv_chip_power9_realize(DeviceState *dev, Error **errp) @@ -992,6 +1000,18 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp) } pnv_xscom_add_subregion(chip, PNV9_XSCOM_PSIHB_BASE, &PNV_PSI(psi9)->xscom_regs); + + /* LPC */ + object_property_set_bool(OBJECT(&chip9->lpc), true, "realized", &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + memory_region_add_subregion(get_system_memory(), PNV9_LPCM_BASE(chip), + &chip9->lpc.xscom_regs); + + chip->dt_isa_nodename = g_strdup_printf("/lpcm-opb@%" PRIx64 "/lpc@0", + (uint64_t) PNV9_LPCM_BASE(chip)); } static void pnv_chip_power9_class_init(ObjectClass *klass, void *data) diff --git a/hw/ppc/pnv_lpc.c b/hw/ppc/pnv_lpc.c index 3c509a30a0..6df694e0ab 100644 --- a/hw/ppc/pnv_lpc.c +++ b/hw/ppc/pnv_lpc.c @@ -118,6 +118,100 @@ static int pnv_lpc_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset) return 0; } +/* POWER9 only */ +int pnv_dt_lpc(PnvChip *chip, void *fdt, int root_offset) +{ + const char compat[] = "ibm,power9-lpcm-opb\0simple-bus"; + const char lpc_compat[] = "ibm,power9-lpc\0ibm,lpc"; + char *name; + int offset, lpcm_offset; + uint64_t lpcm_addr = PNV9_LPCM_BASE(chip); + uint32_t opb_ranges[8] = { 0, + cpu_to_be32(lpcm_addr >> 32), + cpu_to_be32((uint32_t)lpcm_addr), + cpu_to_be32(PNV9_LPCM_SIZE / 2), + cpu_to_be32(PNV9_LPCM_SIZE / 2), + cpu_to_be32(lpcm_addr >> 32), + cpu_to_be32(PNV9_LPCM_SIZE / 2), + cpu_to_be32(PNV9_LPCM_SIZE / 2), + }; + uint32_t opb_reg[4] = { cpu_to_be32(lpcm_addr >> 32), + cpu_to_be32((uint32_t)lpcm_addr), + cpu_to_be32(PNV9_LPCM_SIZE >> 32), + cpu_to_be32((uint32_t)PNV9_LPCM_SIZE), + }; + uint32_t reg[2]; + + /* + * OPB bus + */ + name = g_strdup_printf("lpcm-opb@%"PRIx64, lpcm_addr); + lpcm_offset = fdt_add_subnode(fdt, root_offset, name); + _FDT(lpcm_offset); + g_free(name); + + _FDT((fdt_setprop(fdt, lpcm_offset, "reg", opb_reg, sizeof(opb_reg)))); + _FDT((fdt_setprop_cell(fdt, lpcm_offset, "#address-cells", 1))); + _FDT((fdt_setprop_cell(fdt, lpcm_offset, "#size-cells", 1))); + _FDT((fdt_setprop(fdt, lpcm_offset, "compatible", compat, sizeof(compat)))); + _FDT((fdt_setprop_cell(fdt, lpcm_offset, "ibm,chip-id", chip->chip_id))); + _FDT((fdt_setprop(fdt, lpcm_offset, "ranges", opb_ranges, + sizeof(opb_ranges)))); + + /* + * OPB Master registers + */ + name = g_strdup_printf("opb-master@%x", LPC_OPB_REGS_OPB_ADDR); + offset = fdt_add_subnode(fdt, lpcm_offset, name); + _FDT(offset); + g_free(name); + + reg[0] = cpu_to_be32(LPC_OPB_REGS_OPB_ADDR); + reg[1] = cpu_to_be32(LPC_OPB_REGS_OPB_SIZE); + _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg)))); + _FDT((fdt_setprop_string(fdt, offset, "compatible", + "ibm,power9-lpcm-opb-master"))); + + /* + * OPB arbitrer registers + */ + name = g_strdup_printf("opb-arbitrer@%x", LPC_OPB_REGS_OPBA_ADDR); + offset = fdt_add_subnode(fdt, lpcm_offset, name); + _FDT(offset); + g_free(name); + + reg[0] = cpu_to_be32(LPC_OPB_REGS_OPBA_ADDR); + reg[1] = cpu_to_be32(LPC_OPB_REGS_OPBA_SIZE); + _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg)))); + _FDT((fdt_setprop_string(fdt, offset, "compatible", + "ibm,power9-lpcm-opb-arbiter"))); + + /* + * LPC Host Controller registers + */ + name = g_strdup_printf("lpc-controller@%x", LPC_HC_REGS_OPB_ADDR); + offset = fdt_add_subnode(fdt, lpcm_offset, name); + _FDT(offset); + g_free(name); + + reg[0] = cpu_to_be32(LPC_HC_REGS_OPB_ADDR); + reg[1] = cpu_to_be32(LPC_HC_REGS_OPB_SIZE); + _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg)))); + _FDT((fdt_setprop_string(fdt, offset, "compatible", + "ibm,power9-lpc-controller"))); + + name = g_strdup_printf("lpc@0"); + offset = fdt_add_subnode(fdt, lpcm_offset, name); + _FDT(offset); + g_free(name); + _FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 2))); + _FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 1))); + _FDT((fdt_setprop(fdt, offset, "compatible", lpc_compat, + sizeof(lpc_compat)))); + + return 0; +} + /* * These read/write handlers of the OPB address space should be common * with the P9 LPC Controller which uses direct MMIOs. @@ -242,6 +336,74 @@ static const MemoryRegionOps pnv_lpc_xscom_ops = { .endianness = DEVICE_BIG_ENDIAN, }; +static uint64_t pnv_lpc_mmio_read(void *opaque, hwaddr addr, unsigned size) +{ + PnvLpcController *lpc = PNV_LPC(opaque); + uint64_t val = 0; + uint32_t opb_addr = addr & ECCB_CTL_ADDR_MASK; + MemTxResult result; + + switch (size) { + case 4: + val = address_space_ldl(&lpc->opb_as, opb_addr, MEMTXATTRS_UNSPECIFIED, + &result); + break; + case 1: + val = address_space_ldub(&lpc->opb_as, opb_addr, MEMTXATTRS_UNSPECIFIED, + &result); + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, "OPB read failed at @0x%" + HWADDR_PRIx " invalid size %d\n", addr, size); + return 0; + } + + if (result != MEMTX_OK) { + qemu_log_mask(LOG_GUEST_ERROR, "OPB read failed at @0x%" + HWADDR_PRIx "\n", addr); + } + + return val; +} + +static void pnv_lpc_mmio_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + PnvLpcController *lpc = PNV_LPC(opaque); + uint32_t opb_addr = addr & ECCB_CTL_ADDR_MASK; + MemTxResult result; + + switch (size) { + case 4: + address_space_stl(&lpc->opb_as, opb_addr, val, MEMTXATTRS_UNSPECIFIED, + &result); + break; + case 1: + address_space_stb(&lpc->opb_as, opb_addr, val, MEMTXATTRS_UNSPECIFIED, + &result); + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, "OPB write failed at @0x%" + HWADDR_PRIx " invalid size %d\n", addr, size); + return; + } + + if (result != MEMTX_OK) { + qemu_log_mask(LOG_GUEST_ERROR, "OPB write failed at @0x%" + HWADDR_PRIx "\n", addr); + } +} + +static const MemoryRegionOps pnv_lpc_mmio_ops = { + .read = pnv_lpc_mmio_read, + .write = pnv_lpc_mmio_write, + .impl = { + .min_access_size = 1, + .max_access_size = 4, + }, + .endianness = DEVICE_BIG_ENDIAN, +}; + static void pnv_lpc_eval_irqs(PnvLpcController *lpc) { bool lpc_to_opb_irq = false; @@ -465,6 +627,43 @@ static const TypeInfo pnv_lpc_power8_info = { } }; +static void pnv_lpc_power9_realize(DeviceState *dev, Error **errp) +{ + PnvLpcController *lpc = PNV_LPC(dev); + PnvLpcClass *plc = PNV_LPC_GET_CLASS(dev); + Error *local_err = NULL; + + plc->parent_realize(dev, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + /* P9 uses a MMIO region */ + memory_region_init_io(&lpc->xscom_regs, OBJECT(lpc), &pnv_lpc_mmio_ops, + lpc, "lpcm", PNV9_LPCM_SIZE); +} + +static void pnv_lpc_power9_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PnvLpcClass *plc = PNV_LPC_CLASS(klass); + + dc->desc = "PowerNV LPC Controller POWER9"; + + plc->psi_irq = PSIHB9_IRQ_LPCHC; + + device_class_set_parent_realize(dc, pnv_lpc_power9_realize, + &plc->parent_realize); +} + +static const TypeInfo pnv_lpc_power9_info = { + .name = TYPE_PNV9_LPC, + .parent = TYPE_PNV_LPC, + .instance_size = sizeof(PnvLpcController), + .class_init = pnv_lpc_power9_class_init, +}; + static void pnv_lpc_realize(DeviceState *dev, Error **errp) { PnvLpcController *lpc = PNV_LPC(dev); @@ -540,6 +739,7 @@ static void pnv_lpc_register_types(void) { type_register_static(&pnv_lpc_info); type_register_static(&pnv_lpc_power8_info); + type_register_static(&pnv_lpc_power9_info); } type_init(pnv_lpc_register_types) |