[PATCH] powerpc: split device tree stuff out of iseries/setup.c

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 1 insertions, 577 deletions

diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index 5661bd0d4279..617c724c4590 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)