diff options
Diffstat (limited to 'arch/powerpc/platforms/iseries')
| -rw-r--r-- | arch/powerpc/platforms/iseries/Makefile | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/iseries/dt.c | 618 | ||||
| -rw-r--r-- | arch/powerpc/platforms/iseries/setup.c | 578 | ||||
| -rw-r--r-- | arch/powerpc/platforms/iseries/setup.h | 2 |
4 files changed, 622 insertions, 578 deletions
diff --git a/arch/powerpc/platforms/iseries/Makefile b/arch/powerpc/platforms/iseries/Makefile index 7e67a20c18a..32306214a30 100644 --- a/arch/powerpc/platforms/iseries/Makefile +++ b/arch/powerpc/platforms/iseries/Makefile @@ -1,6 +1,6 @@ EXTRA_CFLAGS += -mno-minimal-toc -obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o mf.o lpevents.o \ +obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o dt.o mf.o lpevents.o \ hvcall.o proc.o htab.o iommu.o misc.o irq.o obj-$(CONFIG_PCI) += pci.o vpdinfo.o obj-$(CONFIG_SMP) += smp.o diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c new file mode 100644 index 00000000000..93d4233e73e --- /dev/null +++ b/arch/powerpc/platforms/iseries/dt.c @@ -0,0 +1,618 @@ +/* + * Copyright (c) 2005-2006 Michael Ellerman, IBM Corporation + * + * Description: + * This file contains all the routines to build a flattened device + * tree for a legacy iSeries machine. + * + * 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. + */ + +#undef DEBUG + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_regs.h> +#include <linux/pci_ids.h> +#include <linux/threads.h> +#include <linux/bitops.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/if_ether.h> /* ETH_ALEN */ + +#include <asm/machdep.h> +#include <asm/prom.h> +#include <asm/lppaca.h> +#include <asm/page.h> +#include <asm/cputable.h> +#include <asm/abs_addr.h> +#include <asm/iseries/hv_types.h> +#include <asm/iseries/hv_lp_config.h> +#include <asm/iseries/hv_call_xm.h> +#include <asm/iseries/it_exp_vpd_panel.h> +#include <asm/udbg.h> + +#include "processor_vpd.h" +#include "call_hpt.h" +#include "call_pci.h" +#include "pci.h" + +#ifdef DEBUG +#define DBG(fmt...) udbg_printf(fmt) +#else +#define DBG(fmt...) +#endif + +struct blob { + unsigned char data[PAGE_SIZE * 2]; + unsigned long next; +}; + +struct iseries_flat_dt { + struct boot_param_header header; + u64 reserve_map[2]; + struct blob dt; + struct blob strings; +}; + +static struct iseries_flat_dt iseries_dt; + +static void __init dt_init(struct iseries_flat_dt *dt) +{ + dt->header.off_mem_rsvmap = + offsetof(struct iseries_flat_dt, reserve_map); + dt->header.off_dt_struct = offsetof(struct iseries_flat_dt, dt); + dt->header.off_dt_strings = offsetof(struct iseries_flat_dt, strings); + dt->header.totalsize = sizeof(struct iseries_flat_dt); + dt->header.dt_strings_size = sizeof(struct blob); + + /* There is no notion of hardware cpu id on iSeries */ + dt->header.boot_cpuid_phys = smp_processor_id(); + + dt->dt.next = (unsigned long)&dt->dt.data; + dt->strings.next = (unsigned long)&dt->strings.data; + + dt->header.magic = OF_DT_HEADER; + dt->header.version = 0x10; + dt->header.last_comp_version = 0x10; + + dt->reserve_map[0] = 0; + dt->reserve_map[1] = 0; +} + +static void __init dt_check_blob(struct blob *b) +{ + if (b->next >= (unsigned long)&b->next) { + DBG("Ran out of space in flat device tree blob!\n"); + BUG(); + } +} + +static void __init dt_push_u32(struct iseries_flat_dt *dt, u32 value) +{ + *((u32*)dt->dt.next) = value; + dt->dt.next += sizeof(u32); + + dt_check_blob(&dt->dt); +} + +#ifdef notyet +static void __init dt_push_u64(struct iseries_flat_dt *dt, u64 value) +{ + *((u64*)dt->dt.next) = value; + dt->dt.next += sizeof(u64); + + dt_check_blob(&dt->dt); +} +#endif + +static unsigned long __init dt_push_bytes(struct blob *blob, char *data, int len) +{ + unsigned long start = blob->next - (unsigned long)blob->data; + + memcpy((char *)blob->next, data, len); + blob->next = _ALIGN(blob->next + len, 4); + + dt_check_blob(blob); + + return start; +} + +static void __init dt_start_node(struct iseries_flat_dt *dt, char *name) +{ + dt_push_u32(dt, OF_DT_BEGIN_NODE); + dt_push_bytes(&dt->dt, name, strlen(name) + 1); +} + +#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE) + +static void __init dt_prop(struct iseries_flat_dt *dt, char *name, + char *data, int len) +{ + unsigned long offset; + + dt_push_u32(dt, OF_DT_PROP); + + /* Length of the data */ + dt_push_u32(dt, len); + + /* Put the property name in the string blob. */ + offset = dt_push_bytes(&dt->strings, name, strlen(name) + 1); + + /* The offset of the properties name in the string blob. */ + dt_push_u32(dt, (u32)offset); + + /* The actual data. */ + dt_push_bytes(&dt->dt, data, len); +} + +static void __init dt_prop_str(struct iseries_flat_dt *dt, char *name, + char *data) +{ + dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */ +} + +static void __init dt_prop_u32(struct iseries_flat_dt *dt, char *name, u32 data) +{ + dt_prop(dt, name, (char *)&data, sizeof(u32)); +} + +static void __init dt_prop_u64(struct iseries_flat_dt *dt, char *name, u64 data) +{ + dt_prop(dt, name, (char *)&data, sizeof(u64)); +} + +static void __init dt_prop_u64_list(struct iseries_flat_dt *dt, char *name, + u64 *data, int n) +{ + dt_prop(dt, name, (char *)data, sizeof(u64) * n); +} + +static void __init dt_prop_u32_list(struct iseries_flat_dt *dt, char *name, + u32 *data, int n) +{ + dt_prop(dt, name, (char *)data, sizeof(u32) * n); +} + +#ifdef notyet +static void __init dt_prop_empty(struct iseries_flat_dt *dt, char *name) +{ + dt_prop(dt, name, NULL, 0); +} +#endif + +static void __init dt_cpus(struct iseries_flat_dt *dt) +{ + unsigned char buf[32]; + unsigned char *p; + unsigned int i, index; + struct IoHriProcessorVpd *d; + u32 pft_size[2]; + + /* yuck */ + snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name); + p = strchr(buf, ' '); + if (!p) p = buf + strlen(buf); + + dt_start_node(dt, "cpus"); + dt_prop_u32(dt, "#address-cells", 1); + dt_prop_u32(dt, "#size-cells", 0); + + pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA */ + pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE); + + for (i = 0; i < NR_CPUS; i++) { + if (lppaca[i].dyn_proc_status >= 2) + continue; + + snprintf(p, 32 - (p - buf), "@%d", i); + dt_start_node(dt, buf); + + dt_prop_str(dt, "device_type", "cpu"); + + index = lppaca[i].dyn_hv_phys_proc_index; + d = &xIoHriProcessorVpd[index]; + + dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024); + dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize); + + dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024); + dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize); + + /* magic conversions to Hz copied from old code */ + dt_prop_u32(dt, "clock-frequency", + ((1UL << 34) * 1000000) / d->xProcFreq); + dt_prop_u32(dt, "timebase-frequency", + ((1UL << 32) * 1000000) / d->xTimeBaseFreq); + + dt_prop_u32(dt, "reg", i); + + dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2); + + dt_end_node(dt); + } + + dt_end_node(dt); +} + +static void __init dt_model(struct iseries_flat_dt *dt) +{ + char buf[16] = "IBM,"; + + /* "IBM," + mfgId[2:3] + systemSerial[1:5] */ + strne2a(buf + 4, xItExtVpdPanel.mfgID + 2, 2); + strne2a(buf + 6, xItExtVpdPanel.systemSerial + 1, 5); + buf[11] = '\0'; + dt_prop_str(dt, "system-id", buf); + + /* "IBM," + machineType[0:4] */ + strne2a(buf + 4, xItExtVpdPanel.machineType, 4); + buf[8] = '\0'; + dt_prop_str(dt, "model", buf); + + dt_prop_str(dt, "compatible", "IBM,iSeries"); +} + +static void __init dt_vdevices(struct iseries_flat_dt *dt) +{ + u32 reg = 0; + HvLpIndexMap vlan_map; + int i; + char buf[32]; + + dt_start_node(dt, "vdevice"); + dt_prop_str(dt, "device_type", "vdevice"); + dt_prop_str(dt, "compatible", "IBM,iSeries-vdevice"); + dt_prop_u32(dt, "#address-cells", 1); + dt_prop_u32(dt, "#size-cells", 0); + + snprintf(buf, sizeof(buf), "vty@%08x", reg); + dt_start_node(dt, buf); + dt_prop_str(dt, "device_type", "serial"); + dt_prop_u32(dt, "reg", reg); + dt_end_node(dt); + reg++; + + snprintf(buf, sizeof(buf), "v-scsi@%08x", reg); + dt_start_node(dt, buf); + dt_prop_str(dt, "device_type", "vscsi"); + dt_prop_str(dt, "compatible", "IBM,v-scsi"); + dt_prop_u32(dt, "reg", reg); + dt_end_node(dt); + reg++; + + vlan_map = HvLpConfig_getVirtualLanIndexMap(); + for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) { + unsigned char mac_addr[ETH_ALEN]; + + if ((vlan_map & (0x8000 >> i)) == 0) + continue; + snprintf(buf, 32, "l-lan@%08x", reg + i); + dt_start_node(dt, buf); + dt_prop_str(dt, "device_type", "network"); + dt_prop_str(dt, "compatible", "IBM,iSeries-l-lan"); + dt_prop_u32(dt, "reg", reg + i); + dt_prop_u32(dt, "linux,unit_address", i); + + mac_addr[0] = 0x02; + mac_addr[1] = 0x01; + mac_addr[2] = 0xff; + mac_addr[3] = i; + mac_addr[4] = 0xff; + mac_addr[5] = HvLpConfig_getLpIndex_outline(); + dt_prop(dt, "local-mac-address", (char *)mac_addr, ETH_ALEN); + dt_prop(dt, "mac-address", (char *)mac_addr, ETH_ALEN); + dt_prop_u32(dt, "max-frame-size", 9000); + dt_prop_u32(dt, "address-bits", 48); + + dt_end_node(dt); + } + reg += HVMAXARCHITECTEDVIRTUALLANS; + + for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++) { + snprintf(buf, 32, "viodasd@%08x", reg + i); + dt_start_node(dt, buf); + dt_prop_str(dt, "device_type", "block"); + dt_prop_str(dt, "compatible", "IBM,iSeries-viodasd"); + dt_prop_u32(dt, "reg", reg + i); + dt_prop_u32(dt, "linux,unit_address", i); + dt_end_node(dt); + } + reg += HVMAXARCHITECTEDVIRTUALDISKS; + for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++) { + snprintf(buf, 32, "viocd@%08x", reg + i); + dt_start_node(dt, buf); + dt_prop_str(dt, "device_type", "block"); + dt_prop_str(dt, "compatible", "IBM,iSeries-viocd"); + dt_prop_u32(dt, "reg", reg + i); + dt_prop_u32(dt, "linux,unit_address", i); + dt_end_node(dt); + } + reg += HVMAXARCHITECTEDVIRTUALCDROMS; + for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++) { + snprintf(buf, 32, "viotape@%08x", reg + i); + dt_start_node(dt, buf); + dt_prop_str(dt, "device_type", "byte"); + dt_prop_str(dt, "compatible", "IBM,iSeries-viotape"); + dt_prop_u32(dt, "reg", reg + i); + dt_prop_u32(dt, "linux,unit_address", i); + dt_end_node(dt); + } + + dt_end_node(dt); +} + +struct pci_class_name { + u16 code; + char *name; + char *type; +}; + +static struct pci_class_name __initdata pci_class_name[] = { + { PCI_CLASS_NETWORK_ETHERNET, "ethernet", "network" }, +}; + +static struct pci_class_name * __init dt_find_pci_class_name(u16 class_code) +{ + struct pci_class_name *cp; + + for (cp = pci_class_name; + cp < &pci_class_name[ARRAY_SIZE(pci_class_name)]; cp++) + if (cp->code == class_code) + return cp; + return NULL; +} + +/* + * This assumes that the node slot is always on the primary bus! + */ +static void __init scan_bridge_slot(struct iseries_flat_dt *dt, + HvBusNumber bus, struct HvCallPci_BridgeInfo *bridge_info) +{ + HvSubBusNumber sub_bus = bridge_info->subBusNumber; + u16 vendor_id; + u16 device_id; + u32 class_id; + int err; + char buf[32]; + u32 reg[5]; + int id_sel = ISERIES_GET_DEVICE_FROM_SUBBUS(sub_bus); + int function = ISERIES_GET_FUNCTION_FROM_SUBBUS(sub_bus); + HvAgentId eads_id_sel = ISERIES_PCI_AGENTID(id_sel, function); + u8 devfn; + struct pci_class_name *cp; + + /* + * Connect all functions of any device found. + */ + for (id_sel = 1; id_sel <= bridge_info->maxAgents; id_sel++) { + for (function = 0; function < 8; function++) { + HvAgentId agent_id = ISERIES_PCI_AGENTID(id_sel, + function); + err = HvCallXm_connectBusUnit(bus, sub_bus, + agent_id, 0); + if (err) { + if (err != 0x302) + printk(KERN_DEBUG + "connectBusUnit(%x, %x, %x) " + "== %x\n", + bus, sub_bus, agent_id, err); + continue; + } + + err = HvCallPci_configLoad16(bus, sub_bus, agent_id, + PCI_VENDOR_ID, &vendor_id); + if (err) { + printk(KERN_DEBUG + "ReadVendor(%x, %x, %x) == %x\n", + bus, sub_bus, agent_id, err); + continue; + } + err = HvCallPci_configLoad16(bus, sub_bus, agent_id, + PCI_DEVICE_ID, &device_id); + if (err) { + printk(KERN_DEBUG + "ReadDevice(%x, %x, %x) == %x\n", + bus, sub_bus, agent_id, err); + continue; + } + err = HvCallPci_configLoad32(bus, sub_bus, agent_id, + PCI_CLASS_REVISION , &class_id); + if (err) { + printk(KERN_DEBUG + "ReadClass(%x, %x, %x) == %x\n", + bus, sub_bus, agent_id, err); + continue; + } + + devfn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(eads_id_sel), + function); + cp = dt_find_pci_class_name(class_id >> 16); + if (cp && cp->name) + strncpy(buf, cp->name, sizeof(buf) - 1); + else + snprintf(buf, sizeof(buf), "pci%x,%x", + vendor_id, device_id); + buf[sizeof(buf) - 1] = '\0'; + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), + "@%x", PCI_SLOT(devfn)); + buf[sizeof(buf) - 1] = '\0'; + if (function != 0) + snprintf(buf + strlen(buf), + sizeof(buf) - strlen(buf), + ",%x", function); + dt_start_node(dt, buf); + reg[0] = (bus << 16) | (devfn << 8); + reg[1] = 0; + reg[2] = 0; + reg[3] = 0; + reg[4] = 0; + dt_prop_u32_list(dt, "reg", reg, 5); + if (cp && (cp->type || cp->name)) + dt_prop_str(dt, "device_type", + cp->type ? cp->type : cp->name); + dt_prop_u32(dt, "vendor-id", vendor_id); + dt_prop_u32(dt, "device-id", device_id); + dt_prop_u32(dt, "class-code", class_id >> 8); + dt_prop_u32(dt, "revision-id", class_id & 0xff); + dt_prop_u32(dt, "linux,subbus", sub_bus); + dt_prop_u32(dt, "linux,agent-id", agent_id); + dt_prop_u32(dt, "linux,logical-slot-number", + bridge_info->logicalSlotNumber); + dt_end_node(dt); + + } + } +} + +static void __init scan_bridge(struct iseries_flat_dt *dt, HvBusNumber bus, + HvSubBusNumber sub_bus, int id_sel) +{ + struct HvCallPci_BridgeInfo bridge_info; + HvAgentId agent_id; + int function; + int ret; + + /* Note: hvSubBus and irq is always be 0 at this level! */ + for (function = 0; function < 8; ++function) { + agent_id = ISERIES_PCI_AGENTID(id_sel, function); + ret = HvCallXm_connectBusUnit(bus, sub_bus, agent_id, 0); + if (ret != 0) { + if (ret != 0xb) + printk(KERN_DEBUG "connectBusUnit(%x, %x, %x) " + "== %x\n", + bus, sub_bus, agent_id, ret); + continue; + } + printk("found device at bus %d idsel %d func %d (AgentId %x)\n", + bus, id_sel, function, agent_id); + ret = HvCallPci_getBusUnitInfo(bus, sub_bus, agent_id, + iseries_hv_addr(&bridge_info), + sizeof(struct HvCallPci_BridgeInfo)); + if (ret != 0) + continue; + printk("bridge info: type %x subbus %x " + "maxAgents %x maxsubbus %x logslot %x\n", + bridge_info.busUnitInfo.deviceType, + bridge_info.subBusNumber, + bridge_info.maxAgents, + bridge_info.maxSubBusNumber, + bridge_info.logicalSlotNumber); + if (bridge_info.busUnitInfo.deviceType == + HvCallPci_BridgeDevice) + scan_bridge_slot(dt, bus, &bridge_info); + else + printk("PCI: Invalid Bridge Configuration(0x%02X)", + bridge_info.busUnitInfo.deviceType); + } +} + +static void __init scan_phb(struct iseries_flat_dt *dt, HvBusNumber bus) +{ + struct HvCallPci_DeviceInfo dev_info; + const HvSubBusNumber sub_bus = 0; /* EADs is always 0. */ + int err; + int id_sel; + const int max_agents = 8; + + /* + * Probe for EADs Bridges + */ + for (id_sel = 1; id_sel < max_agents; ++id_sel) { + err = HvCallPci_getDeviceInfo(bus, sub_bus, id_sel, + iseries_hv_addr(&dev_info), + sizeof(struct HvCallPci_DeviceInfo)); + if (err) { + if (err != 0x302) + printk(KERN_DEBUG "getDeviceInfo(%x, %x, %x) " + "== %x\n", + bus, sub_bus, id_sel, err); + continue; + } + if (dev_info.deviceType != HvCallPci_NodeDevice) { + printk(KERN_DEBUG "PCI: Invalid System Configuration" + "(0x%02X) for bus 0x%02x id 0x%02x.\n", + dev_info.deviceType, bus, id_sel); + continue; + } + scan_bridge(dt, bus, sub_bus, id_sel); + } +} + +static void __init dt_pci_devices(struct iseries_flat_dt *dt) +{ + HvBusNumber bus; + char buf[32]; + u32 buses[2]; + int phb_num = 0; + + /* Check all possible buses. */ + for (bus = 0; bus < 256; bus++) { + int err = HvCallXm_testBus(bus); + + if (err) { + /* + * Check for Unexpected Return code, a clue that + * something has gone wrong. + */ + if (err != 0x0301) + printk(KERN_ERR "Unexpected Return on Probe" + "(0x%02X): 0x%04X", bus, err); + continue; + } + printk("bus %d appears to exist\n", bus); + snprintf(buf, 32, "pci@%d", phb_num); + dt_start_node(dt, buf); + dt_prop_str(dt, "device_type", "pci"); + dt_prop_str(dt, "compatible", "IBM,iSeries-Logical-PHB"); + dt_prop_u32(dt, "#address-cells", 3); + dt_prop_u32(dt, "#size-cells", 2); + buses[0] = buses[1] = bus; + dt_prop_u32_list(dt, "bus-range", buses, 2); + scan_phb(dt, bus); + dt_end_node(dt); + phb_num++; + } +} + +void * __init build_flat_dt(unsigned long phys_mem_size) +{ + u64 tmp[2]; + + dt_init(&iseries_dt); + + dt_start_node(&iseries_dt, ""); + + dt_prop_u32(&iseries_dt, "#address-cells", 2); + dt_prop_u32(&iseries_dt, "#size-cells", 2); + dt_model(&iseries_dt); + + /* /memory */ + dt_start_node(&iseries_dt, "memory@0"); + dt_prop_str(&iseries_dt, "name", "memory"); + dt_prop_str(&iseries_dt, "device_type", "memory"); + tmp[0] = 0; + tmp[1] = phys_mem_size; + dt_prop_u64_list(&iseries_dt, "reg", tmp, 2); + dt_end_node(&iseries_dt); + + /* /chosen */ + dt_start_node(&iseries_dt, "chosen"); + dt_prop_str(&iseries_dt, "bootargs", cmd_line); + dt_end_node(&iseries_dt); + + dt_cpus(&iseries_dt); + + dt_vdevices(&iseries_dt); + dt_pci_devices(&iseries_dt); + + dt_end_node(&iseries_dt); + + dt_push_u32(&iseries_dt, OF_DT_END); + + return &iseries_dt; +} diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c index 5661bd0d427..617c724c459 100644 --- a/arch/powerpc/platforms/iseries/setup.c +++ b/arch/powerpc/platforms/iseries/setup.c @@ -28,7 +28,6 @@ #include <linux/major.h> #include <linux/root_dev.h> #include <linux/kernel.h> -#include <linux/if_ether.h> /* ETH_ALEN */ #include <asm/processor.h> #include <asm/machdep.h> @@ -46,13 +45,11 @@ #include <asm/cache.h> #include <asm/sections.h> #include <asm/abs_addr.h> -#include <asm/iseries/hv_types.h> #include <asm/iseries/hv_lp_config.h> #include <asm/iseries/hv_call_event.h> #include <asm/iseries/hv_call_xm.h> #include <asm/iseries/it_lp_queue.h> #include <asm/iseries/mf.h> -#include <asm/iseries/it_exp_vpd_panel.h> #include <asm/iseries/hv_lp_event.h> #include <asm/iseries/lpar_map.h> #include <asm/udbg.h> @@ -66,8 +63,6 @@ #include "main_store.h" #include "call_sm.h" #include "call_hpt.h" -#include "call_pci.h" -#include "pci.h" #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) @@ -711,575 +706,6 @@ define_machine(iseries) { /* XXX Implement enable_pmcs for iSeries */ }; -struct blob { - unsigned char data[PAGE_SIZE * 2]; - unsigned long next; -}; - -struct iseries_flat_dt { - struct boot_param_header header; - u64 reserve_map[2]; - struct blob dt; - struct blob strings; -}; - -static struct iseries_flat_dt iseries_dt; - -static void __init dt_init(struct iseries_flat_dt *dt) -{ - dt->header.off_mem_rsvmap = - offsetof(struct iseries_flat_dt, reserve_map); - dt->header.off_dt_struct = offsetof(struct iseries_flat_dt, dt); - dt->header.off_dt_strings = offsetof(struct iseries_flat_dt, strings); - dt->header.totalsize = sizeof(struct iseries_flat_dt); - dt->header.dt_strings_size = sizeof(struct blob); - - /* There is no notion of hardware cpu id on iSeries */ - dt->header.boot_cpuid_phys = smp_processor_id(); - - dt->dt.next = (unsigned long)&dt->dt.data; - dt->strings.next = (unsigned long)&dt->strings.data; - - dt->header.magic = OF_DT_HEADER; - dt->header.version = 0x10; - dt->header.last_comp_version = 0x10; - - dt->reserve_map[0] = 0; - dt->reserve_map[1] = 0; -} - -static void __init dt_check_blob(struct blob *b) -{ - if (b->next >= (unsigned long)&b->next) { - DBG("Ran out of space in flat device tree blob!\n"); - BUG(); - } -} - -static void __init dt_push_u32(struct iseries_flat_dt *dt, u32 value) -{ - *((u32*)dt->dt.next) = value; - dt->dt.next += sizeof(u32); - - dt_check_blob(&dt->dt); -} - -#ifdef notyet -static void __init dt_push_u64(struct iseries_flat_dt *dt, u64 value) -{ - *((u64*)dt->dt.next) = value; - dt->dt.next += sizeof(u64); - - dt_check_blob(&dt->dt); -} -#endif - -static unsigned long __init dt_push_bytes(struct blob *blob, char *data, int len) -{ - unsigned long start = blob->next - (unsigned long)blob->data; - - memcpy((char *)blob->next, data, len); - blob->next = _ALIGN(blob->next + len, 4); - - dt_check_blob(blob); - - return start; -} - -static void __init dt_start_node(struct iseries_flat_dt *dt, char *name) -{ - dt_push_u32(dt, OF_DT_BEGIN_NODE); - dt_push_bytes(&dt->dt, name, strlen(name) + 1); -} - -#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE) - -static void __init dt_prop(struct iseries_flat_dt *dt, char *name, - char *data, int len) -{ - unsigned long offset; - - dt_push_u32(dt, OF_DT_PROP); - - /* Length of the data */ - dt_push_u32(dt, len); - - /* Put the property name in the string blob. */ - offset = dt_push_bytes(&dt->strings, name, strlen(name) + 1); - - /* The offset of the properties name in the string blob. */ - dt_push_u32(dt, (u32)offset); - - /* The actual data. */ - dt_push_bytes(&dt->dt, data, len); -} - -static void __init dt_prop_str(struct iseries_flat_dt *dt, char *name, - char *data) -{ - dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */ -} - -static void __init dt_prop_u32(struct iseries_flat_dt *dt, char *name, u32 data) -{ - dt_prop(dt, name, (char *)&data, sizeof(u32)); -} - -static void __init dt_prop_u64(struct iseries_flat_dt *dt, char *name, u64 data) -{ - dt_prop(dt, name, (char *)&data, sizeof(u64)); -} - -static void __init dt_prop_u64_list(struct iseries_flat_dt *dt, char *name, - u64 *data, int n) -{ - dt_prop(dt, name, (char *)data, sizeof(u64) * n); -} - -static void __init dt_prop_u32_list(struct iseries_flat_dt *dt, char *name, - u32 *data, int n) -{ - dt_prop(dt, name, (char *)data, sizeof(u32) * n); -} - -#ifdef notyet -static void __init dt_prop_empty(struct iseries_flat_dt *dt, char *name) -{ - dt_prop(dt, name, NULL, 0); -} -#endif - -static void __init dt_cpus(struct iseries_flat_dt *dt) -{ - unsigned char buf[32]; - unsigned char *p; - unsigned int i, index; - struct IoHriProcessorVpd *d; - u32 pft_size[2]; - - /* yuck */ - snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name); - p = strchr(buf, ' '); - if (!p) p = buf + strlen(buf); - - dt_start_node(dt, "cpus"); - dt_prop_u32(dt, "#address-cells", 1); - dt_prop_u32(dt, "#size-cells", 0); - - pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA */ - pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE); - - for (i = 0; i < NR_CPUS; i++) { - if (lppaca[i].dyn_proc_status >= 2) - continue; - - snprintf(p, 32 - (p - buf), "@%d", i); - dt_start_node(dt, buf); - - dt_prop_str(dt, "device_type", "cpu"); - - index = lppaca[i].dyn_hv_phys_proc_index; - d = &xIoHriProcessorVpd[index]; - - dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024); - dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize); - - dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024); - dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize); - - /* magic conversions to Hz copied from old code */ - dt_prop_u32(dt, "clock-frequency", - ((1UL << 34) * 1000000) / d->xProcFreq); - dt_prop_u32(dt, "timebase-frequency", - ((1UL << 32) * 1000000) / d->xTimeBaseFreq); - - dt_prop_u32(dt, "reg", i); - - dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2); - - dt_end_node(dt); - } - - dt_end_node(dt); -} - -static void __init dt_model(struct iseries_flat_dt *dt) -{ - char buf[16] = "IBM,"; - - /* "IBM," + mfgId[2:3] + systemSerial[1:5] */ - strne2a(buf + 4, xItExtVpdPanel.mfgID + 2, 2); - strne2a(buf + 6, xItExtVpdPanel.systemSerial + 1, 5); - buf[11] = '\0'; - dt_prop_str(dt, "system-id", buf); - - /* "IBM," + machineType[0:4] */ - strne2a(buf + 4, xItExtVpdPanel.machineType, 4); - buf[8] = '\0'; - dt_prop_str(dt, "model", buf); - - dt_prop_str(dt, "compatible", "IBM,iSeries"); -} - -static void __init dt_vdevices(struct iseries_flat_dt *dt) -{ - u32 reg = 0; - HvLpIndexMap vlan_map; - int i; - char buf[32]; - - dt_start_node(dt, "vdevice"); - dt_prop_str(dt, "device_type", "vdevice"); - dt_prop_str(dt, "compatible", "IBM,iSeries-vdevice"); - dt_prop_u32(dt, "#address-cells", 1); - dt_prop_u32(dt, "#size-cells", 0); - - snprintf(buf, sizeof(buf), "vty@%08x", reg); - dt_start_node(dt, buf); - dt_prop_str(dt, "device_type", "serial"); - dt_prop_u32(dt, "reg", reg); - dt_end_node(dt); - reg++; - - snprintf(buf, sizeof(buf), "v-scsi@%08x", reg); - dt_start_node(dt, buf); - dt_prop_str(dt, "device_type", "vscsi"); - dt_prop_str(dt, "compatible", "IBM,v-scsi"); - dt_prop_u32(dt, "reg", reg); - dt_end_node(dt); - reg++; - - vlan_map = HvLpConfig_getVirtualLanIndexMap(); - for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) { - unsigned char mac_addr[ETH_ALEN]; - - if ((vlan_map & (0x8000 >> i)) == 0) - continue; - snprintf(buf, 32, "l-lan@%08x", reg + i); - dt_start_node(dt, buf); - dt_prop_str(dt, "device_type", "network"); - dt_prop_str(dt, "compatible", "IBM,iSeries-l-lan"); - dt_prop_u32(dt, "reg", reg + i); - dt_prop_u32(dt, "linux,unit_address", i); - - mac_addr[0] = 0x02; - mac_addr[1] = 0x01; - mac_addr[2] = 0xff; - mac_addr[3] = i; - mac_addr[4] = 0xff; - mac_addr[5] = HvLpConfig_getLpIndex_outline(); - dt_prop(dt, "local-mac-address", (char *)mac_addr, ETH_ALEN); - dt_prop(dt, "mac-address", (char *)mac_addr, ETH_ALEN); - dt_prop_u32(dt, "max-frame-size", 9000); - dt_prop_u32(dt, "address-bits", 48); - - dt_end_node(dt); - } - reg += HVMAXARCHITECTEDVIRTUALLANS; - - for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++) { - snprintf(buf, 32, "viodasd@%08x", reg + i); - dt_start_node(dt, buf); - dt_prop_str(dt, "device_type", "block"); - dt_prop_str(dt, "compatible", "IBM,iSeries-viodasd"); - dt_prop_u32(dt, "reg", reg + i); - dt_prop_u32(dt, "linux,unit_address", i); - dt_end_node(dt); - } - reg += HVMAXARCHITECTEDVIRTUALDISKS; - for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++) { - snprintf(buf, 32, "viocd@%08x", reg + i); - dt_start_node(dt, buf); - dt_prop_str(dt, "device_type", "block"); - dt_prop_str(dt, "compatible", "IBM,iSeries-viocd"); - dt_prop_u32(dt, "reg", reg + i); - dt_prop_u32(dt, "linux,unit_address", i); - dt_end_node(dt); - } - reg += HVMAXARCHITECTEDVIRTUALCDROMS; - for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++) { - snprintf(buf, 32, "viotape@%08x", reg + i); - dt_start_node(dt, buf); - dt_prop_str(dt, "device_type", "byte"); - dt_prop_str(dt, "compatible", "IBM,iSeries-viotape"); - dt_prop_u32(dt, "reg", reg + i); - dt_prop_u32(dt, "linux,unit_address", i); - dt_end_node(dt); - } - - dt_end_node(dt); -} - -struct pci_class_name { - u16 code; - char *name; - char *type; -}; - -static struct pci_class_name __initdata pci_class_name[] = { - { PCI_CLASS_NETWORK_ETHERNET, "ethernet", "network" }, -}; - -static struct pci_class_name * __init dt_find_pci_class_name(u16 class_code) -{ - struct pci_class_name *cp; - - for (cp = pci_class_name; - cp < &pci_class_name[ARRAY_SIZE(pci_class_name)]; cp++) - if (cp->code == class_code) - return cp; - return NULL; -} - -/* - * This assumes that the node slot is always on the primary bus! - */ -static void __init scan_bridge_slot(struct iseries_flat_dt *dt, - HvBusNumber bus, struct HvCallPci_BridgeInfo *bridge_info) -{ - HvSubBusNumber sub_bus = bridge_info->subBusNumber; - u16 vendor_id; - u16 device_id; - u32 class_id; - int err; - char buf[32]; - u32 reg[5]; - int id_sel = ISERIES_GET_DEVICE_FROM_SUBBUS(sub_bus); - int function = ISERIES_GET_FUNCTION_FROM_SUBBUS(sub_bus); - HvAgentId eads_id_sel = ISERIES_PCI_AGENTID(id_sel, function); - u8 devfn; - struct pci_class_name *cp; - - /* - * Connect all functions of any device found. - */ - for (id_sel = 1; id_sel <= bridge_info->maxAgents; id_sel++) { - for (function = 0; function < 8; function++) { - HvAgentId agent_id = ISERIES_PCI_AGENTID(id_sel, - function); - err = HvCallXm_connectBusUnit(bus, sub_bus, - agent_id, 0); - if (err) { - if (err != 0x302) - printk(KERN_DEBUG - "connectBusUnit(%x, %x, %x) " - "== %x\n", - bus, sub_bus, agent_id, err); - continue; - } - - err = HvCallPci_configLoad16(bus, sub_bus, agent_id, - PCI_VENDOR_ID, &vendor_id); - if (err) { - printk(KERN_DEBUG - "ReadVendor(%x, %x, %x) == %x\n", - bus, sub_bus, agent_id, err); - continue; - } - err = HvCallPci_configLoad16(bus, sub_bus, agent_id, - PCI_DEVICE_ID, &device_id); - if (err) { - printk(KERN_DEBUG - "ReadDevice(%x, %x, %x) == %x\n", - bus, sub_bus, agent_id, err); - continue; - } - err = HvCallPci_configLoad32(bus, sub_bus, agent_id, - PCI_CLASS_REVISION , &class_id); - if (err) { - printk(KERN_DEBUG - "ReadClass(%x, %x, %x) == %x\n", - bus, sub_bus, agent_id, err); - continue; - } - - devfn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(eads_id_sel), - function); - cp = dt_find_pci_class_name(class_id >> 16); - if (cp && cp->name) - strncpy(buf, cp->name, sizeof(buf) - 1); - else - snprintf(buf, sizeof(buf), "pci%x,%x", - vendor_id, device_id); - buf[sizeof(buf) - 1] = '\0'; - snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), - "@%x", PCI_SLOT(devfn)); - buf[sizeof(buf) - 1] = '\0'; - if (function != 0) - snprintf(buf + strlen(buf), - sizeof(buf) - strlen(buf), - ",%x", function); - dt_start_node(dt, buf); - reg[0] = (bus << 16) | (devfn << 8); - reg[1] = 0; - reg[2] = 0; - reg[3] = 0; - reg[4] = 0; - dt_prop_u32_list(dt, "reg", reg, 5); - if (cp && (cp->type || cp->name)) - dt_prop_str(dt, "device_type", - cp->type ? cp->type : cp->name); - dt_prop_u32(dt, "vendor-id", vendor_id); - dt_prop_u32(dt, "device-id", device_id); - dt_prop_u32(dt, "class-code", class_id >> 8); - dt_prop_u32(dt, "revision-id", class_id & 0xff); - dt_prop_u32(dt, "linux,subbus", sub_bus); - dt_prop_u32(dt, "linux,agent-id", agent_id); - dt_prop_u32(dt, "linux,logical-slot-number", - bridge_info->logicalSlotNumber); - dt_end_node(dt); - - } - } -} - -static void __init scan_bridge(struct iseries_flat_dt *dt, HvBusNumber bus, - HvSubBusNumber sub_bus, int id_sel) -{ - struct HvCallPci_BridgeInfo bridge_info; - HvAgentId agent_id; - int function; - int ret; - - /* Note: hvSubBus and irq is always be 0 at this level! */ - for (function = 0; function < 8; ++function) { - agent_id = ISERIES_PCI_AGENTID(id_sel, function); - ret = HvCallXm_connectBusUnit(bus, sub_bus, agent_id, 0); - if (ret != 0) { - if (ret != 0xb) - printk(KERN_DEBUG "connectBusUnit(%x, %x, %x) " - "== %x\n", - bus, sub_bus, agent_id, ret); - continue; - } - printk("found device at bus %d idsel %d func %d (AgentId %x)\n", - bus, id_sel, function, agent_id); - ret = HvCallPci_getBusUnitInfo(bus, sub_bus, agent_id, - iseries_hv_addr(&bridge_info), - sizeof(struct HvCallPci_BridgeInfo)); - if (ret != 0) - continue; - printk("bridge info: type %x subbus %x " - "maxAgents %x maxsubbus %x logslot %x\n", - bridge_info.busUnitInfo.deviceType, - bridge_info.subBusNumber, - bridge_info.maxAgents, - bridge_info.maxSubBusNumber, - bridge_info.logicalSlotNumber); - if (bridge_info.busUnitInfo.deviceType == - HvCallPci_BridgeDevice) - scan_bridge_slot(dt, bus, &bridge_info); - else - printk("PCI: Invalid Bridge Configuration(0x%02X)", - bridge_info.busUnitInfo.deviceType); - } -} - -static void __init scan_phb(struct iseries_flat_dt *dt, HvBusNumber bus) -{ - struct HvCallPci_DeviceInfo dev_info; - const HvSubBusNumber sub_bus = 0; /* EADs is always 0. */ - int err; - int id_sel; - const int max_agents = 8; - - /* - * Probe for EADs Bridges - */ - for (id_sel = 1; id_sel < max_agents; ++id_sel) { - err = HvCallPci_getDeviceInfo(bus, sub_bus, id_sel, - iseries_hv_addr(&dev_info), - sizeof(struct HvCallPci_DeviceInfo)); - if (err) { - if (err != 0x302) - printk(KERN_DEBUG "getDeviceInfo(%x, %x, %x) " - "== %x\n", - bus, sub_bus, id_sel, err); - continue; - } - if (dev_info.deviceType != HvCallPci_NodeDevice) { - printk(KERN_DEBUG "PCI: Invalid System Configuration" - "(0x%02X) for bus 0x%02x id 0x%02x.\n", - dev_info.deviceType, bus, id_sel); - continue; - } - scan_bridge(dt, bus, sub_bus, id_sel); - } -} - -static void __init dt_pci_devices(struct iseries_flat_dt *dt) -{ - HvBusNumber bus; - char buf[32]; - u32 buses[2]; - int phb_num = 0; - - /* Check all possible buses. */ - for (bus = 0; bus < 256; bus++) { - int err = HvCallXm_testBus(bus); - - if (err) { - /* - * Check for Unexpected Return code, a clue that - * something has gone wrong. - */ - if (err != 0x0301) - printk(KERN_ERR "Unexpected Return on Probe" - "(0x%02X): 0x%04X", bus, err); - continue; - } - printk("bus %d appears to exist\n", bus); - snprintf(buf, 32, "pci@%d", phb_num); - dt_start_node(dt, buf); - dt_prop_str(dt, "device_type", "pci"); - dt_prop_str(dt, "compatible", "IBM,iSeries-Logical-PHB"); - dt_prop_u32(dt, "#address-cells", 3); - dt_prop_u32(dt, "#size-cells", 2); - buses[0] = buses[1] = bus; - dt_prop_u32_list(dt, "bus-range", buses, 2); - scan_phb(dt, bus); - dt_end_node(dt); - phb_num++; - } -} - -static void __init build_flat_dt(struct iseries_flat_dt *dt, - unsigned long phys_mem_size) -{ - u64 tmp[2]; - - dt_init(dt); - - dt_start_node(dt, ""); - - dt_prop_u32(dt, "#address-cells", 2); - dt_prop_u32(dt, "#size-cells", 2); - dt_model(dt); - - /* /memory */ - dt_start_node(dt, "memory@0"); - dt_prop_str(dt, "name", "memory"); - dt_prop_str(dt, "device_type", "memory"); - tmp[0] = 0; - tmp[1] = phys_mem_size; - dt_prop_u64_list(dt, "reg", tmp, 2); - dt_end_node(dt); - - /* /chosen */ - dt_start_node(dt, "chosen"); - dt_prop_str(dt, "bootargs", cmd_line); - dt_end_node(dt); - - dt_cpus(dt); - - dt_vdevices(dt); - dt_pci_devices(dt); - - dt_end_node(dt); - - dt_push_u32(dt, OF_DT_END); -} - void * __init iSeries_early_setup(void) { unsigned long phys_mem_size; @@ -1294,9 +720,7 @@ void * __init iSeries_early_setup(void) iSeries_get_cmdline(); - build_flat_dt(&iseries_dt, phys_mem_size); - - return (void *) __pa(&iseries_dt); + return (void *) __pa(build_flat_dt(phys_mem_size)); } static void hvputc(char c) diff --git a/arch/powerpc/platforms/iseries/setup.h b/arch/powerpc/platforms/iseries/setup.h index 5213044ec41..0a47ac53c95 100644 --- a/arch/powerpc/platforms/iseries/setup.h +++ b/arch/powerpc/platforms/iseries/setup.h @@ -21,4 +21,6 @@ extern unsigned long iSeries_get_boot_time(void); extern int iSeries_set_rtc_time(struct rtc_time *tm); extern void iSeries_get_rtc_time(struct rtc_time *tm); +extern void *build_flat_dt(unsigned long phys_mem_size); + #endif /* __ISERIES_SETUP_H__ */ |