powerpc: move iSeries_setup.[ch] and mf.c into platforms/iseries

iSeries_setup.c becomes setup.c
iSeries_setup.h becomes setup.h
mf.c retains its name

Also moved iSeries_[gs]et_rtc_time and iSeries_get_boot_time into
mf.c since they are just small wrappers around mf_ functions.

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

1 files changed, 0 insertions, 1007 deletions

diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c
deleted file mode 100644
index 9daf734adbd..00000000000
--- a/arch/ppc64/kernel/iSeries_setup.c
+++ /dev/null
@@ -1,1007 +0,0 @@
-/*
- *    Copyright (c) 2000 Mike Corrigan <mikejc@us.ibm.com>
- *    Copyright (c) 1999-2000 Grant Erickson <grant@lcse.umn.edu>
- *
- *    Module name: iSeries_setup.c
- *
- *    Description:
- *      Architecture- / platform-specific boot-time initialization code for
- *      the IBM iSeries LPAR.  Adapted from original code by Grant Erickson and
- *      code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek
- *      <dan@net4x.com>.
- *
- *      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/config.h>
-#include <linux/init.h>
-#include <linux/threads.h>
-#include <linux/smp.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/initrd.h>
-#include <linux/seq_file.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/root_dev.h>
-
-#include <asm/processor.h>
-#include <asm/machdep.h>
-#include <asm/page.h>
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/mmu_context.h>
-#include <asm/cputable.h>
-#include <asm/sections.h>
-#include <asm/iommu.h>
-#include <asm/firmware.h>
-
-#include <asm/time.h>
-#include "iSeries_setup.h"
-#include <asm/naca.h>
-#include <asm/paca.h>
-#include <asm/cache.h>
-#include <asm/sections.h>
-#include <asm/abs_addr.h>
-#include <asm/iSeries/HvCallHpt.h>
-#include <asm/iSeries/HvLpConfig.h>
-#include <asm/iSeries/HvCallEvent.h>
-#include <asm/iSeries/HvCallSm.h>
-#include <asm/iSeries/HvCallXm.h>
-#include <asm/iSeries/ItLpQueue.h>
-#include <asm/iSeries/IoHriMainStore.h>
-#include <asm/iSeries/mf.h>
-#include <asm/iSeries/HvLpEvent.h>
-#include <asm/iSeries/iSeries_irq.h>
-#include <asm/iSeries/IoHriProcessorVpd.h>
-#include <asm/iSeries/ItVpdAreas.h>
-#include <asm/iSeries/LparMap.h>
-
-extern void hvlog(char *fmt, ...);
-
-#ifdef DEBUG
-#define DBG(fmt...) hvlog(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-/* Function Prototypes */
-extern void ppcdbg_initialize(void);
-
-static void build_iSeries_Memory_Map(void);
-static int iseries_shared_idle(void);
-static int iseries_dedicated_idle(void);
-#ifdef CONFIG_PCI
-extern void iSeries_pci_final_fixup(void);
-#else
-static void iSeries_pci_final_fixup(void) { }
-#endif
-
-/* Global Variables */
-int piranha_simulator;
-
-extern int rd_size;		/* Defined in drivers/block/rd.c */
-extern unsigned long klimit;
-extern unsigned long embedded_sysmap_start;
-extern unsigned long embedded_sysmap_end;
-
-extern unsigned long iSeries_recal_tb;
-extern unsigned long iSeries_recal_titan;
-
-static int mf_initialized;
-
-struct MemoryBlock {
-	unsigned long absStart;
-	unsigned long absEnd;
-	unsigned long logicalStart;
-	unsigned long logicalEnd;
-};
-
-/*
- * Process the main store vpd to determine where the holes in memory are
- * and return the number of physical blocks and fill in the array of
- * block data.
- */
-static unsigned long iSeries_process_Condor_mainstore_vpd(
-		struct MemoryBlock *mb_array, unsigned long max_entries)
-{
-	unsigned long holeFirstChunk, holeSizeChunks;
-	unsigned long numMemoryBlocks = 1;
-	struct IoHriMainStoreSegment4 *msVpd =
-		(struct IoHriMainStoreSegment4 *)xMsVpd;
-	unsigned long holeStart = msVpd->nonInterleavedBlocksStartAdr;
-	unsigned long holeEnd = msVpd->nonInterleavedBlocksEndAdr;
-	unsigned long holeSize = holeEnd - holeStart;
-
-	printk("Mainstore_VPD: Condor\n");
-	/*
-	 * Determine if absolute memory has any
-	 * holes so that we can interpret the
-	 * access map we get back from the hypervisor
-	 * correctly.
-	 */
-	mb_array[0].logicalStart = 0;
-	mb_array[0].logicalEnd = 0x100000000;
-	mb_array[0].absStart = 0;
-	mb_array[0].absEnd = 0x100000000;
-
-	if (holeSize) {
-		numMemoryBlocks = 2;
-		holeStart = holeStart & 0x000fffffffffffff;
-		holeStart = addr_to_chunk(holeStart);
-		holeFirstChunk = holeStart;
-		holeSize = addr_to_chunk(holeSize);
-		holeSizeChunks = holeSize;
-		printk( "Main store hole: start chunk = %0lx, size = %0lx chunks\n",
-				holeFirstChunk, holeSizeChunks );
-		mb_array[0].logicalEnd = holeFirstChunk;
-		mb_array[0].absEnd = holeFirstChunk;
-		mb_array[1].logicalStart = holeFirstChunk;
-		mb_array[1].logicalEnd = 0x100000000 - holeSizeChunks;
-		mb_array[1].absStart = holeFirstChunk + holeSizeChunks;
-		mb_array[1].absEnd = 0x100000000;
-	}
-	return numMemoryBlocks;
-}
-
-#define MaxSegmentAreas			32
-#define MaxSegmentAdrRangeBlocks	128
-#define MaxAreaRangeBlocks		4
-
-static unsigned long iSeries_process_Regatta_mainstore_vpd(
-		struct MemoryBlock *mb_array, unsigned long max_entries)
-{
-	struct IoHriMainStoreSegment5 *msVpdP =
-		(struct IoHriMainStoreSegment5 *)xMsVpd;
-	unsigned long numSegmentBlocks = 0;
-	u32 existsBits = msVpdP->msAreaExists;
-	unsigned long area_num;
-
-	printk("Mainstore_VPD: Regatta\n");
-
-	for (area_num = 0; area_num < MaxSegmentAreas; ++area_num ) {
-		unsigned long numAreaBlocks;
-		struct IoHriMainStoreArea4 *currentArea;
-
-		if (existsBits & 0x80000000) {
-			unsigned long block_num;
-
-			currentArea = &msVpdP->msAreaArray[area_num];
-			numAreaBlocks = currentArea->numAdrRangeBlocks;
-			printk("ms_vpd: processing area %2ld  blocks=%ld",
-					area_num, numAreaBlocks);
-			for (block_num = 0; block_num < numAreaBlocks;
-					++block_num ) {
-				/* Process an address range block */
-				struct MemoryBlock tempBlock;
-				unsigned long i;
-
-				tempBlock.absStart =
-					(unsigned long)currentArea->xAdrRangeBlock[block_num].blockStart;
-				tempBlock.absEnd =
-					(unsigned long)currentArea->xAdrRangeBlock[block_num].blockEnd;
-				tempBlock.logicalStart = 0;
-				tempBlock.logicalEnd   = 0;
-				printk("\n          block %ld absStart=%016lx absEnd=%016lx",
-						block_num, tempBlock.absStart,
-						tempBlock.absEnd);
-
-				for (i = 0; i < numSegmentBlocks; ++i) {
-					if (mb_array[i].absStart ==
-							tempBlock.absStart)
-						break;
-				}
-				if (i == numSegmentBlocks) {
-					if (numSegmentBlocks == max_entries)
-						panic("iSeries_process_mainstore_vpd: too many memory blocks");
-					mb_array[numSegmentBlocks] = tempBlock;
-					++numSegmentBlocks;
-				} else
-					printk(" (duplicate)");
-			}
-			printk("\n");
-		}
-		existsBits <<= 1;
-	}
-	/* Now sort the blocks found into ascending sequence */
-	if (numSegmentBlocks > 1) {
-		unsigned long m, n;
-
-		for (m = 0; m < numSegmentBlocks - 1; ++m) {
-			for (n = numSegmentBlocks - 1; m < n; --n) {
-				if (mb_array[n].absStart <
-						mb_array[n-1].absStart) {
-					struct MemoryBlock tempBlock;
-
-					tempBlock = mb_array[n];
-					mb_array[n] = mb_array[n-1];
-					mb_array[n-1] = tempBlock;
-				}
-			}
-		}
-	}
-	/*
-	 * Assign "logical" addresses to each block.  These
-	 * addresses correspond to the hypervisor "bitmap" space.
-	 * Convert all addresses into units of 256K chunks.
-	 */
-	{
-	unsigned long i, nextBitmapAddress;
-
-	printk("ms_vpd: %ld sorted memory blocks\n", numSegmentBlocks);
-	nextBitmapAddress = 0;
-	for (i = 0; i < numSegmentBlocks; ++i) {
-		unsigned long length = mb_array[i].absEnd -
-			mb_array[i].absStart;
-
-		mb_array[i].logicalStart = nextBitmapAddress;
-		mb_array[i].logicalEnd = nextBitmapAddress + length;
-		nextBitmapAddress += length;
-		printk("          Bitmap range: %016lx - %016lx\n"
-				"        Absolute range: %016lx - %016lx\n",
-				mb_array[i].logicalStart,
-				mb_array[i].logicalEnd,
-				mb_array[i].absStart, mb_array[i].absEnd);
-		mb_array[i].absStart = addr_to_chunk(mb_array[i].absStart &
-				0x000fffffffffffff);
-		mb_array[i].absEnd = addr_to_chunk(mb_array[i].absEnd &
-				0x000fffffffffffff);
-		mb_array[i].logicalStart =
-			addr_to_chunk(mb_array[i].logicalStart);
-		mb_array[i].logicalEnd = addr_to_chunk(mb_array[i].logicalEnd);
-	}
-	}
-
-	return numSegmentBlocks;
-}
-
-static unsigned long iSeries_process_mainstore_vpd(struct MemoryBlock *mb_array,
-		unsigned long max_entries)
-{
-	unsigned long i;
-	unsigned long mem_blocks = 0;
-
-	if (cpu_has_feature(CPU_FTR_SLB))
-		mem_blocks = iSeries_process_Regatta_mainstore_vpd(mb_array,
-				max_entries);
-	else
-		mem_blocks = iSeries_process_Condor_mainstore_vpd(mb_array,
-				max_entries);
-
-	printk("Mainstore_VPD: numMemoryBlocks = %ld \n", mem_blocks);
-	for (i = 0; i < mem_blocks; ++i) {
-		printk("Mainstore_VPD: block %3ld logical chunks %016lx - %016lx\n"
-		       "                             abs chunks %016lx - %016lx\n",
-			i, mb_array[i].logicalStart, mb_array[i].logicalEnd,
-			mb_array[i].absStart, mb_array[i].absEnd);
-	}
-	return mem_blocks;
-}
-
-static void __init iSeries_get_cmdline(void)
-{
-	char *p, *q;
-
-	/* copy the command line parameter from the primary VSP  */
-	HvCallEvent_dmaToSp(cmd_line, 2 * 64* 1024, 256,
-			HvLpDma_Direction_RemoteToLocal);
-
-	p = cmd_line;
-	q = cmd_line + 255;
-	while(p < q) {
-		if (!*p || *p == '\n')
-			break;
-		++p;
-	}
-	*p = 0;
-}
-
-static void __init iSeries_init_early(void)
-{
-	extern unsigned long memory_limit;
-
-	DBG(" -> iSeries_init_early()\n");
-
-	ppc64_firmware_features = FW_FEATURE_ISERIES;
-
-	ppcdbg_initialize();
-
-	ppc64_interrupt_controller = IC_ISERIES;
-
-#if defined(CONFIG_BLK_DEV_INITRD)
-	/*
-	 * If the init RAM disk has been configured and there is
-	 * a non-zero starting address for it, set it up
-	 */
-	if (naca.xRamDisk) {
-		initrd_start = (unsigned long)__va(naca.xRamDisk);
-		initrd_end = initrd_start + naca.xRamDiskSize * PAGE_SIZE;
-		initrd_below_start_ok = 1;	// ramdisk in kernel space
-		ROOT_DEV = Root_RAM0;
-		if (((rd_size * 1024) / PAGE_SIZE) < naca.xRamDiskSize)
-			rd_size = (naca.xRamDiskSize * PAGE_SIZE) / 1024;
-	} else
-#endif /* CONFIG_BLK_DEV_INITRD */
-	{
-	    /* ROOT_DEV = MKDEV(VIODASD_MAJOR, 1); */
-	}
-
-	iSeries_recal_tb = get_tb();
-	iSeries_recal_titan = HvCallXm_loadTod();
-
-	/*
-	 * Initialize the hash table management pointers
-	 */
-	hpte_init_iSeries();
-
-	/*
-	 * Initialize the DMA/TCE management
-	 */
-	iommu_init_early_iSeries();
-
-	iSeries_get_cmdline();
-
-	/* Save unparsed command line copy for /proc/cmdline */
-	strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
-
-	/* Parse early parameters, in particular mem=x */
-	parse_early_param();
-
-	if (memory_limit) {
-		if (memory_limit < systemcfg->physicalMemorySize)
-			systemcfg->physicalMemorySize = memory_limit;
-		else {
-			printk("Ignoring mem=%lu >= ram_top.\n", memory_limit);
-			memory_limit = 0;
-		}
-	}
-
-	/* Initialize machine-dependency vectors */
-#ifdef CONFIG_SMP
-	smp_init_iSeries();
-#endif
-	if (itLpNaca.xPirEnvironMode == 0)
-		piranha_simulator = 1;
-
-	/* Associate Lp Event Queue 0 with processor 0 */
-	HvCallEvent_setLpEventQueueInterruptProc(0, 0);
-
-	mf_init();
-	mf_initialized = 1;
-	mb();
-
-	/* If we were passed an initrd, set the ROOT_DEV properly if the values
-	 * look sensible. If not, clear initrd reference.
-	 */
-#ifdef CONFIG_BLK_DEV_INITRD
-	if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
-	    initrd_end > initrd_start)
-		ROOT_DEV = Root_RAM0;
-	else
-		initrd_start = initrd_end = 0;
-#endif /* CONFIG_BLK_DEV_INITRD */
-
-	DBG(" <- iSeries_init_early()\n");
-}
-
-struct mschunks_map mschunks_map = {
-	/* XXX We don't use these, but Piranha might need them. */
-	.chunk_size  = MSCHUNKS_CHUNK_SIZE,
-	.chunk_shift = MSCHUNKS_CHUNK_SHIFT,
-	.chunk_mask  = MSCHUNKS_OFFSET_MASK,
-};
-EXPORT_SYMBOL(mschunks_map);
-
-void mschunks_alloc(unsigned long num_chunks)
-{
-	klimit = _ALIGN(klimit, sizeof(u32));
-	mschunks_map.mapping = (u32 *)klimit;
-	klimit += num_chunks * sizeof(u32);
-	mschunks_map.num_chunks = num_chunks;
-}
-
-/*
- * The iSeries may have very large memories ( > 128 GB ) and a partition
- * may get memory in "chunks" that may be anywhere in the 2**52 real
- * address space.  The chunks are 256K in size.  To map this to the
- * memory model Linux expects, the AS/400 specific code builds a
- * translation table to translate what Linux thinks are "physical"
- * addresses to the actual real addresses.  This allows us to make
- * it appear to Linux that we have contiguous memory starting at
- * physical address zero while in fact this could be far from the truth.
- * To avoid confusion, I'll let the words physical and/or real address
- * apply to the Linux addresses while I'll use "absolute address" to
- * refer to the actual hardware real address.
- *
- * build_iSeries_Memory_Map gets information from the Hypervisor and
- * looks at the Main Store VPD to determine the absolute addresses
- * of the memory that has been assigned to our partition and builds
- * a table used to translate Linux's physical addresses to these
- * absolute addresses.  Absolute addresses are needed when
- * communicating with the hypervisor (e.g. to build HPT entries)
- */
-
-static void __init build_iSeries_Memory_Map(void)
-{
-	u32 loadAreaFirstChunk, loadAreaLastChunk, loadAreaSize;
-	u32 nextPhysChunk;
-	u32 hptFirstChunk, hptLastChunk, hptSizeChunks, hptSizePages;
-	u32 num_ptegs;
-	u32 totalChunks,moreChunks;
-	u32 currChunk, thisChunk, absChunk;
-	u32 currDword;
-	u32 chunkBit;
-	u64 map;
-	struct MemoryBlock mb[32];
-	unsigned long numMemoryBlocks, curBlock;
-
-	/* Chunk size on iSeries is 256K bytes */
-	totalChunks = (u32)HvLpConfig_getMsChunks();
-	mschunks_alloc(totalChunks);
-
-	/*
-	 * Get absolute address of our load area
-	 * and map it to physical address 0
-	 * This guarantees that the loadarea ends up at physical 0
-	 * otherwise, it might not be returned by PLIC as the first
-	 * chunks
-	 */
-
-	loadAreaFirstChunk = (u32)addr_to_chunk(itLpNaca.xLoadAreaAddr);
-	loadAreaSize =  itLpNaca.xLoadAreaChunks;
-
-	/*
-	 * Only add the pages already mapped here.
-	 * Otherwise we might add the hpt pages
-	 * The rest of the pages of the load area
-	 * aren't in the HPT yet and can still
-	 * be assigned an arbitrary physical address
-	 */
-	if ((loadAreaSize * 64) > HvPagesToMap)
-		loadAreaSize = HvPagesToMap / 64;
-
-	loadAreaLastChunk = loadAreaFirstChunk + loadAreaSize - 1;
-
-	/*
-	 * TODO Do we need to do something if the HPT is in the 64MB load area?
-	 * This would be required if the itLpNaca.xLoadAreaChunks includes
-	 * the HPT size
-	 */
-
-	printk("Mapping load area - physical addr = 0000000000000000\n"
-		"                    absolute addr = %016lx\n",
-		chunk_to_addr(loadAreaFirstChunk));
-	printk("Load area size %dK\n", loadAreaSize * 256);
-
-	for (nextPhysChunk = 0; nextPhysChunk < loadAreaSize; ++nextPhysChunk)
-		mschunks_map.mapping[nextPhysChunk] =
-			loadAreaFirstChunk + nextPhysChunk;
-
-	/*
-	 * Get absolute address of our HPT and remember it so
-	 * we won't map it to any physical address
-	 */
-	hptFirstChunk = (u32)addr_to_chunk(HvCallHpt_getHptAddress());
-	hptSizePages = (u32)HvCallHpt_getHptPages();
-	hptSizeChunks = hptSizePages >> (MSCHUNKS_CHUNK_SHIFT - PAGE_SHIFT);
-	hptLastChunk = hptFirstChunk + hptSizeChunks - 1;
-
-	printk("HPT absolute addr = %016lx, size = %dK\n",
-			chunk_to_addr(hptFirstChunk), hptSizeChunks * 256);
-
-	/* Fill in the hashed page table hash mask */
-	num_ptegs = hptSizePages *
-		(PAGE_SIZE / (sizeof(hpte_t) * HPTES_PER_GROUP));
-	htab_hash_mask = num_ptegs - 1;
-
-	/*
-	 * The actual hashed page table is in the hypervisor,
-	 * we have no direct access
-	 */
-	htab_address = NULL;
-
-	/*
-	 * Determine if absolute memory has any
-	 * holes so that we can interpret the
-	 * access map we get back from the hypervisor
-	 * correctly.
-	 */
-	numMemoryBlocks = iSeries_process_mainstore_vpd(mb, 32);
-
-	/*
-	 * Process the main store access map from the hypervisor
-	 * to build up our physical -> absolute translation table
-	 */
-	curBlock = 0;
-	currChunk = 0;
-	currDword = 0;
-	moreChunks = totalChunks;
-
-	while (moreChunks) {
-		map = HvCallSm_get64BitsOfAccessMap(itLpNaca.xLpIndex,
-				currDword);
-		thisChunk = currChunk;
-		while (map) {
-			chunkBit = map >> 63;
-			map <<= 1;
-			if (chunkBit) {
-				--moreChunks;
-				while (thisChunk >= mb[curBlock].logicalEnd) {
-					++curBlock;
-					if (curBlock >= numMemoryBlocks)
-						panic("out of memory blocks");
-				}
-				if (thisChunk < mb[curBlock].logicalStart)
-					panic("memory block error");
-
-				absChunk = mb[curBlock].absStart +
-					(thisChunk - mb[curBlock].logicalStart);
-				if (((absChunk < hptFirstChunk) ||
-				     (absChunk > hptLastChunk)) &&
-				    ((absChunk < loadAreaFirstChunk) ||
-				     (absChunk > loadAreaLastChunk))) {
-					mschunks_map.mapping[nextPhysChunk] =
-						absChunk;
-					++nextPhysChunk;
-				}
-			}
-			++thisChunk;
-		}
-		++currDword;
-		currChunk += 64;
-	}
-
-	/*
-	 * main store size (in chunks) is
-	 *   totalChunks - hptSizeChunks
-	 * which should be equal to
-	 *   nextPhysChunk
-	 */
-	systemcfg->physicalMemorySize = chunk_to_addr(nextPhysChunk);
-}
-
-/*
- * Document me.
- */
-static void __init iSeries_setup_arch(void)
-{
-	unsigned procIx = get_paca()->lppaca.dyn_hv_phys_proc_index;
-
-	if (get_paca()->lppaca.shared_proc) {
-		ppc_md.idle_loop = iseries_shared_idle;
-		printk(KERN_INFO "Using shared processor idle loop\n");
-	} else {
-		ppc_md.idle_loop = iseries_dedicated_idle;
-		printk(KERN_INFO "Using dedicated idle loop\n");
-	}
-
-	/* Setup the Lp Event Queue */
-	setup_hvlpevent_queue();
-
-	printk("Max  logical processors = %d\n",
-			itVpdAreas.xSlicMaxLogicalProcs);
-	printk("Max physical processors = %d\n",
-			itVpdAreas.xSlicMaxPhysicalProcs);
-
-	systemcfg->processor = xIoHriProcessorVpd[procIx].xPVR;
-	printk("Processor version = %x\n", systemcfg->processor);
-}
-
-static void iSeries_get_cpuinfo(struct seq_file *m)
-{
-	seq_printf(m, "machine\t\t: 64-bit iSeries Logical Partition\n");
-}
-
-/*
- * Document me.
- * and Implement me.
- */
-static int iSeries_get_irq(struct pt_regs *regs)
-{
-	/* -2 means ignore this interrupt */
-	return -2;
-}
-
-/*
- * Document me.
- */
-static void iSeries_restart(char *cmd)
-{
-	mf_reboot();
-}
-
-/*
- * Document me.
- */
-static void iSeries_power_off(void)
-{
-	mf_power_off();
-}
-
-/*
- * Document me.
- */
-static void iSeries_halt(void)
-{
-	mf_power_off();
-}
-
-static void __init iSeries_progress(char * st, unsigned short code)
-{
-	printk("Progress: [%04x] - %s\n", (unsigned)code, st);
-	if (!piranha_simulator && mf_initialized) {
-		if (code != 0xffff)
-			mf_display_progress(code);
-		else
-			mf_clear_src();
-	}
-}
-
-static void __init iSeries_fixup_klimit(void)
-{
-	/*
-	 * Change klimit to take into account any ram disk
-	 * that may be included
-	 */
-	if (naca.xRamDisk)
-		klimit = KERNELBASE + (u64)naca.xRamDisk +
-			(naca.xRamDiskSize * PAGE_SIZE);
-	else {
-		/*
-		 * No ram disk was included - check and see if there
-		 * was an embedded system map.  Change klimit to take
-		 * into account any embedded system map
-		 */
-		if (embedded_sysmap_end)
-			klimit = KERNELBASE + ((embedded_sysmap_end + 4095) &
-					0xfffffffffffff000);
-	}
-}
-
-static int __init iSeries_src_init(void)
-{
-        /* clear the progress line */
-        ppc_md.progress(" ", 0xffff);
-        return 0;
-}
-
-late_initcall(iSeries_src_init);
-
-static inline void process_iSeries_events(void)
-{
-	asm volatile ("li 0,0x5555; sc" : : : "r0", "r3");
-}
-
-static void yield_shared_processor(void)
-{
-	unsigned long tb;
-
-	HvCall_setEnabledInterrupts(HvCall_MaskIPI |
-				    HvCall_MaskLpEvent |
-				    HvCall_MaskLpProd |
-				    HvCall_MaskTimeout);
-
-	tb = get_tb();
-	/* Compute future tb value when yield should expire */
-	HvCall_yieldProcessor(HvCall_YieldTimed, tb+tb_ticks_per_jiffy);
-
-	/*
-	 * The decrementer stops during the yield.  Force a fake decrementer
-	 * here and let the timer_interrupt code sort out the actual time.
-	 */
-	get_paca()->lppaca.int_dword.fields.decr_int = 1;
-	process_iSeries_events();
-}
-
-static int iseries_shared_idle(void)
-{
-	while (1) {
-		while (!need_resched() && !hvlpevent_is_pending()) {
-			local_irq_disable();
-			ppc64_runlatch_off();
-
-			/* Recheck with irqs off */
-			if (!need_resched() && !hvlpevent_is_pending())
-				yield_shared_processor();
-
-			HMT_medium();
-			local_irq_enable();
-		}
-
-		ppc64_runlatch_on();
-
-		if (hvlpevent_is_pending())
-			process_iSeries_events();
-
-		schedule();
-	}
-
-	return 0;
-}
-
-static int iseries_dedicated_idle(void)
-{
-	long oldval;
-
-	while (1) {
-		oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED);
-
-		if (!oldval) {
-			set_thread_flag(TIF_POLLING_NRFLAG);
-
-			while (!need_resched()) {
-				ppc64_runlatch_off();
-				HMT_low();
-
-				if (hvlpevent_is_pending()) {
-					HMT_medium();
-					ppc64_runlatch_on();
-					process_iSeries_events();
-				}
-			}
-
-			HMT_medium();
-			clear_thread_flag(TIF_POLLING_NRFLAG);
-		} else {
-			set_need_resched();
-		}
-
-		ppc64_runlatch_on();
-		schedule();
-	}
-
-	return 0;
-}
-
-#ifndef CONFIG_PCI
-void __init iSeries_init_IRQ(void) { }
-#endif
-
-static int __init iseries_probe(int platform)
-{
-	return PLATFORM_ISERIES_LPAR == platform;
-}
-
-struct machdep_calls __initdata iseries_md = {
-	.setup_arch	= iSeries_setup_arch,
-	.get_cpuinfo	= iSeries_get_cpuinfo,
-	.init_IRQ	= iSeries_init_IRQ,
-	.get_irq	= iSeries_get_irq,
-	.init_early	= iSeries_init_early,
-	.pcibios_fixup	= iSeries_pci_final_fixup,
-	.restart	= iSeries_restart,
-	.power_off	= iSeries_power_off,
-	.halt		= iSeries_halt,
-	.get_boot_time	= iSeries_get_boot_time,
-	.set_rtc_time	= iSeries_set_rtc_time,
-	.get_rtc_time	= iSeries_get_rtc_time,
-	.calibrate_decr	= generic_calibrate_decr,
-	.progress	= iSeries_progress,
-	.probe		= iseries_probe,
-	/* XXX Implement enable_pmcs for iSeries */
-};
-
-struct blob {
-	unsigned char data[PAGE_SIZE];
-	unsigned long next;
-};
-
-struct iseries_flat_dt {
-	struct boot_param_header header;
-	u64 reserve_map[2];
-	struct blob dt;
-	struct blob strings;
-};
-
-struct iseries_flat_dt iseries_dt;
-
-void 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;
-}
-
-void 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();
-	}
-}
-
-void 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);
-}
-
-void 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);
-}
-
-unsigned long 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;
-}
-
-void 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)
-
-void 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);
-}
-
-void dt_prop_str(struct iseries_flat_dt *dt, char *name, char *data)
-{
-	dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */
-}
-
-void dt_prop_u32(struct iseries_flat_dt *dt, char *name, u32 data)
-{
-	dt_prop(dt, name, (char *)&data, sizeof(u32));
-}
-
-void dt_prop_u64(struct iseries_flat_dt *dt, char *name, u64 data)
-{
-	dt_prop(dt, name, (char *)&data, sizeof(u64));
-}
-
-void dt_prop_u64_list(struct iseries_flat_dt *dt, char *name, u64 *data, int n)
-{
-	dt_prop(dt, name, (char *)data, sizeof(u64) * n);
-}
-
-void dt_prop_empty(struct iseries_flat_dt *dt, char *name)
-{
-	dt_prop(dt, name, NULL, 0);
-}
-
-void dt_cpus(struct iseries_flat_dt *dt)
-{
-	unsigned char buf[32];
-	unsigned char *p;
-	unsigned int i, index;
-	struct IoHriProcessorVpd *d;
-
-	/* 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);
-
-	for (i = 0; i < NR_CPUS; i++) {
-		if (paca[i].lppaca.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 = paca[i].lppaca.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_end_node(dt);
-	}
-
-	dt_end_node(dt);
-}
-
-void build_flat_dt(struct iseries_flat_dt *dt)
-{
-	u64 tmp[2];
-
-	dt_init(dt);
-
-	dt_start_node(dt, "");
-
-	dt_prop_u32(dt, "#address-cells", 2);
-	dt_prop_u32(dt, "#size-cells", 2);
-
-	/* /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] = systemcfg->physicalMemorySize;
-	dt_prop_u64_list(dt, "reg", tmp, 2);
-	dt_end_node(dt);
-
-	/* /chosen */
-	dt_start_node(dt, "chosen");
-	dt_prop_u32(dt, "linux,platform", PLATFORM_ISERIES_LPAR);
-	dt_end_node(dt);
-
-	dt_cpus(dt);
-
-	dt_end_node(dt);
-
-	dt_push_u32(dt, OF_DT_END);
-}
-
-void * __init iSeries_early_setup(void)
-{
-	iSeries_fixup_klimit();
-
-	/*
-	 * Initialize the table which translate Linux physical addresses to
-	 * AS/400 absolute addresses
-	 */
-	build_iSeries_Memory_Map();
-
-	build_flat_dt(&iseries_dt);
-
-	return (void *) __pa(&iseries_dt);
-}