Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/paulus/ppc64-2.6

arch/ppc64/boot/Makefile

@@ -52,7 +52,7 @@ obj-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.o, $(section)))
 src-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.c, $(section)))
 gz-sec  = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))
 
-hostprogs-y		:= piggy addnote addRamDisk
+hostprogs-y		:= addnote addRamDisk
 targets 		+= zImage zImage.initrd imagesize.c \
 			   $(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
 			   $(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
@@ -78,9 +78,6 @@ addsection = $(CROSS32OBJCOPY) $(1) \
 quiet_cmd_addnote = ADDNOTE $@ 
       cmd_addnote = $(CROSS32LD) $(BOOTLFLAGS) -o $@ $(obj-boot) && $(obj)/addnote $@
 
-quiet_cmd_piggy = PIGGY   $@
-      cmd_piggy = $(obj)/piggyback $(@:.o=) < $< | $(CROSS32AS) -o $@
-
 $(call gz-sec, $(required)): $(obj)/kernel-%.gz: % FORCE
 	$(call if_changed,gzip)
 

arch/ppc64/boot/main.c

@@ -17,7 +17,6 @@
 
 extern void *finddevice(const char *);
 extern int getprop(void *, const char *, void *, int);
-extern void printk(char *fmt, ...);
 extern void printf(const char *fmt, ...);
 extern int sprintf(char *buf, const char *fmt, ...);
 void gunzip(void *, int, unsigned char *, int *);
@@ -147,10 +146,10 @@ void start(unsigned long a1, unsigned long a2, void *promptr)
 		}
 		a1 = initrd.addr;
 		a2 = initrd.size;
-		printf("initial ramdisk moving 0x%lx <- 0x%lx (%lx bytes)\n\r",
+		printf("initial ramdisk moving 0x%lx <- 0x%lx (0x%lx bytes)\n\r",
 		       initrd.addr, (unsigned long)_initrd_start, initrd.size);
 		memmove((void *)initrd.addr, (void *)_initrd_start, initrd.size);
-		printf("initrd head: 0x%lx\n\r", *((u32 *)initrd.addr));
+		printf("initrd head: 0x%lx\n\r", *((unsigned long *)initrd.addr));
 	}
 
 	/* Eventually gunzip the kernel */
@@ -201,9 +200,6 @@ void start(unsigned long a1, unsigned long a2, void *promptr)
 
 	flush_cache((void *)vmlinux.addr, vmlinux.size);
 
-	if (a1)
-		printf("initrd head: 0x%lx\n\r", *((u32 *)initrd.addr));
-
 	kernel_entry = (kernel_entry_t)vmlinux.addr;
 #ifdef DEBUG
 	printf( "kernel:\n\r"

arch/ppc64/boot/mknote.c

-/*
- * Copyright (C) Cort Dougan 1999.
- *
- * 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.
- *
- * Generate a note section as per the CHRP specification.
- *
- */
-
-#include <stdio.h>
-
-#define PL(x) printf("%c%c%c%c", ((x)>>24)&0xff, ((x)>>16)&0xff, ((x)>>8)&0xff, (x)&0xff );
-
-int main(void)
-{
-/* header */
-	/* namesz */
-	PL(strlen("PowerPC")+1);
-	/* descrsz */
-	PL(6*4);
-	/* type */
-	PL(0x1275);
-	/* name */
-	printf("PowerPC"); printf("%c", 0);
-	
-/* descriptor */
-	/* real-mode */
-	PL(0xffffffff);
-	/* real-base */
-	PL(0x00c00000);
-	/* real-size */
-	PL(0xffffffff);
-	/* virt-base */
-	PL(0xffffffff);
-	/* virt-size */
-	PL(0xffffffff);
-	/* load-base */
-	PL(0x4000);
-	return 0;
-}

arch/ppc64/boot/piggyback.c

-/*
- * Copyright 2001 IBM Corp 
- *
- * 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.
- */
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-
-extern long ce_exec_config[];
-
-int main(int argc, char *argv[])
-{
-	int i, cnt, pos, len;
-	unsigned int cksum, val;
-	unsigned char *lp;
-	unsigned char buf[8192];
-	char *varname;
-	if (argc != 2)
-	{
-		fprintf(stderr, "usage: %s name <in-file >out-file\n",
-			argv[0]);
-		exit(1);
-	}
-
-	varname = strrchr(argv[1], '/');
-	if (varname)
-		varname++;
-	else
-		varname = argv[1];
-
-	fprintf(stdout, "#\n");
-	fprintf(stdout, "# Miscellaneous data structures:\n");
-	fprintf(stdout, "# WARNING - this file is automatically generated!\n");
-	fprintf(stdout, "#\n");
-	fprintf(stdout, "\n");
-	fprintf(stdout, "\t.data\n");
-	fprintf(stdout, "\t.globl %s_data\n", varname);
-	fprintf(stdout, "%s_data:\n", varname);
-	pos = 0;
-	cksum = 0;
-	while ((len = read(0, buf, sizeof(buf))) > 0)
-	{
-		cnt = 0;
-		lp = (unsigned char *)buf;
-		len = (len + 3) & ~3;  /* Round up to longwords */
-		for (i = 0;  i < len;  i += 4)
-		{
-			if (cnt == 0)
-			{
-				fprintf(stdout, "\t.long\t");
-			}
-			fprintf(stdout, "0x%02X%02X%02X%02X", lp[0], lp[1], lp[2], lp[3]);
-			val = *(unsigned long *)lp;
-			cksum ^= val;
-			lp += 4;
-			if (++cnt == 4)
-			{
-				cnt = 0;
-				fprintf(stdout, " # %x \n", pos+i-12);
-				fflush(stdout);
-			} else
-			{
-				fprintf(stdout, ",");
-			}
-		}
-		if (cnt)
-		{
-			fprintf(stdout, "0\n");
-		}
-		pos += len;
-	}
-	fprintf(stdout, "\t.globl %s_len\n", varname);
-	fprintf(stdout, "%s_len:\t.long\t0x%x\n", varname, pos);
-	fflush(stdout);
-	fclose(stdout);
-	fprintf(stderr, "cksum = %x\n", cksum);
-	exit(0);
-}
-

arch/ppc64/boot/prom.c

@@ -40,7 +40,7 @@ void *finddevice(const char *name);
 int getprop(void *phandle, const char *name, void *buf, int buflen);
 void chrpboot(int a1, int a2, void *prom);	/* in main.c */
 
-void printk(char *fmt, ...);
+int printf(char *fmt, ...);
 
 /* there is no convenient header to get this from...  -- paulus */
 extern unsigned long strlen(const char *);
@@ -220,7 +220,7 @@ readchar(void)
 		case 1:
 			return ch;
 		case -1:
-			printk("read(stdin) returned -1\r\n");
+			printf("read(stdin) returned -1\r\n");
 			return -1;
 		}
 	}
@@ -627,18 +627,6 @@ int sprintf(char * buf, const char *fmt, ...)
 
 static char sprint_buf[1024];
 
-void
-printk(char *fmt, ...)
-{
-	va_list args;
-	int n;
-
-	va_start(args, fmt);
-	n = vsprintf(sprint_buf, fmt, args);
-	va_end(args);
-	write(stdout, sprint_buf, n);
-}
-
 int
 printf(char *fmt, ...)
 {

arch/ppc64/kernel/LparData.c

@@ -28,13 +28,6 @@
 #include <asm/iSeries/IoHriProcessorVpd.h>
 #include <asm/iSeries/ItSpCommArea.h>
 
-/* The LpQueue is used to pass event data from the hypervisor to
- * the partition.  This is where I/O interrupt events are communicated.
- */
-
-/* May be filled in by the hypervisor so cannot end up in the BSS */
-struct ItLpQueue xItLpQueue __attribute__((__section__(".data")));
-
 
 /* The HvReleaseData is the root of the information shared between 
  * the hypervisor and Linux.  
@@ -200,7 +193,7 @@ struct ItVpdAreas itVpdAreas = {
 		0,0,0,			/* 13 - 15 */
 		sizeof(struct IoHriProcessorVpd),/* 16 length of Proc Vpd */
 		0,0,0,0,0,0,		/* 17 - 22  */
-		sizeof(struct ItLpQueue),/*     23 length of Lp Queue */
+		sizeof(struct hvlpevent_queue),	/* 23 length of Lp Queue */
 		0,0			/* 24 - 25 */
 		},
 	.xSlicVpdAdrs = {			/* VPD addresses */
@@ -218,7 +211,7 @@ struct ItVpdAreas itVpdAreas = {
 		0,0,0,			/* 13 - 15 */
 		&xIoHriProcessorVpd,	/*      16 Proc Vpd */
 		0,0,0,0,0,0,		/* 17 - 22 */
-		&xItLpQueue,		/*      23 Lp Queue */
+		&hvlpevent_queue,	/*      23 Lp Queue */
 		0,0
 	}
 };

arch/ppc64/kernel/iSeries_proc.c

@@ -40,50 +40,6 @@ static int __init iseries_proc_create(void)
 }
 core_initcall(iseries_proc_create);
 
-static char *event_types[9] = {
-	"Hypervisor\t\t",
-	"Machine Facilities\t",
-	"Session Manager\t",
-	"SPD I/O\t\t",
-	"Virtual Bus\t\t",
-	"PCI I/O\t\t",
-	"RIO I/O\t\t",
-	"Virtual Lan\t\t",
-	"Virtual I/O\t\t"
-};
-
-static int proc_lpevents_show(struct seq_file *m, void *v)
-{
-	unsigned int i;
-
-	seq_printf(m, "LpEventQueue 0\n");
-	seq_printf(m, "  events processed:\t%lu\n",
-		   (unsigned long)xItLpQueue.xLpIntCount);
-
-	for (i = 0; i < 9; ++i)
-		seq_printf(m, "    %s %10lu\n", event_types[i],
-			   (unsigned long)xItLpQueue.xLpIntCountByType[i]);
-
-	seq_printf(m, "\n  events processed by processor:\n");
-
-	for_each_online_cpu(i)
-		seq_printf(m, "    CPU%02d  %10u\n", i, paca[i].lpevent_count);
-
-	return 0;
-}
-
-static int proc_lpevents_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, proc_lpevents_show, NULL);
-}
-
-static struct file_operations proc_lpevents_operations = {
-	.open		= proc_lpevents_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 static unsigned long startTitan = 0;
 static unsigned long startTb = 0;
 
@@ -148,10 +104,6 @@ static int __init iseries_proc_init(void)
 {
 	struct proc_dir_entry *e;
 
-	e = create_proc_entry("iSeries/lpevents", S_IFREG|S_IRUGO, NULL);
-	if (e)
-		e->proc_fops = &proc_lpevents_operations;
-
 	e = create_proc_entry("iSeries/titanTod", S_IFREG|S_IRUGO, NULL);
 	if (e)
 		e->proc_fops = &proc_titantod_operations;

arch/ppc64/kernel/iSeries_setup.c

@@ -24,7 +24,6 @@
 #include <linux/smp.h>
 #include <linux/param.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
 #include <linux/initrd.h>
 #include <linux/seq_file.h>
 #include <linux/kdev_t.h>
@@ -676,7 +675,6 @@ static void __init iSeries_bolt_kernel(unsigned long saddr, unsigned long eaddr)
  */
 static void __init iSeries_setup_arch(void)
 {
-	void *eventStack;
 	unsigned procIx = get_paca()->lppaca.dyn_hv_phys_proc_index;
 
 	/* Add an eye catcher and the systemcfg layout version number */
@@ -685,24 +683,7 @@ static void __init iSeries_setup_arch(void)
 	systemcfg->version.minor = SYSTEMCFG_MINOR;
 
 	/* Setup the Lp Event Queue */
-
-	/* Allocate a page for the Event Stack
-	 * The hypervisor wants the absolute real address, so
-	 * we subtract out the KERNELBASE and add in the
-	 * absolute real address of the kernel load area
-	 */
-	eventStack = alloc_bootmem_pages(LpEventStackSize);
-	memset(eventStack, 0, LpEventStackSize);
-
-	/* Invoke the hypervisor to initialize the event stack */
-	HvCallEvent_setLpEventStack(0, eventStack, LpEventStackSize);
-
-	/* Initialize fields in our Lp Event Queue */
-	xItLpQueue.xSlicEventStackPtr = (char *)eventStack;
-	xItLpQueue.xSlicCurEventPtr = (char *)eventStack;
-	xItLpQueue.xSlicLastValidEventPtr = (char *)eventStack +
-					(LpEventStackSize - LpEventMaxSize);
-	xItLpQueue.xIndex = 0;
+	setup_hvlpevent_queue();
 
 	/* Compute processor frequency */
 	procFreqHz = ((1UL << 34) * 1000000) /
@@ -853,28 +834,6 @@ static int __init iSeries_src_init(void)
 
 late_initcall(iSeries_src_init);
 
-static int set_spread_lpevents(char *str)
-{
-	unsigned long i;
-	unsigned long val = simple_strtoul(str, NULL, 0);
-
-	/*
-	 * The parameter is the number of processors to share in processing
-	 * lp events.
-	 */
-	if (( val > 0) && (val <= NR_CPUS)) {
-		for (i = 1; i < val; ++i)
-			paca[i].lpqueue_ptr = paca[0].lpqueue_ptr;
-
-		printk("lpevent processing spread over %ld processors\n", val);
-	} else {
-		printk("invalid spread_lpevents %ld\n", val);
-	}
-
-	return 1;
-}
-__setup("spread_lpevents=", set_spread_lpevents);
-
 #ifndef CONFIG_PCI
 void __init iSeries_init_IRQ(void) { }
 #endif

arch/ppc64/kernel/idle.c

@@ -88,7 +88,7 @@ static int iSeries_idle(void)
 
 	while (1) {
 		if (lpaca->lppaca.shared_proc) {
-			if (ItLpQueue_isLpIntPending(lpaca->lpqueue_ptr))
+			if (hvlpevent_is_pending())
 				process_iSeries_events();
 			if (!need_resched())
 				yield_shared_processor();
@@ -100,7 +100,7 @@ static int iSeries_idle(void)
 
 				while (!need_resched()) {
 					HMT_medium();
-					if (ItLpQueue_isLpIntPending(lpaca->lpqueue_ptr))
+					if (hvlpevent_is_pending())
 						process_iSeries_events();
 					HMT_low();
 				}

arch/ppc64/kernel/irq.c

@@ -66,7 +66,6 @@ EXPORT_SYMBOL(irq_desc);
 int distribute_irqs = 1;
 int __irq_offset_value;
 int ppc_spurious_interrupts;
-unsigned long lpevent_count;
 u64 ppc64_interrupt_controller;
 
 int show_interrupts(struct seq_file *p, void *v)
@@ -269,7 +268,6 @@ void ppc_irq_dispatch_handler(struct pt_regs *regs, int irq)
 void do_IRQ(struct pt_regs *regs)
 {
 	struct paca_struct *lpaca;
-	struct ItLpQueue *lpq;
 
 	irq_enter();
 
@@ -295,9 +293,8 @@ void do_IRQ(struct pt_regs *regs)
 		iSeries_smp_message_recv(regs);
 	}
 #endif /* CONFIG_SMP */
-	lpq = lpaca->lpqueue_ptr;
-	if (lpq && ItLpQueue_isLpIntPending(lpq))
-		lpevent_count += ItLpQueue_process(lpq, regs);
+	if (hvlpevent_is_pending())
+		process_hvlpevents(regs);
 
 	irq_exit();
 

arch/ppc64/kernel/mf.c

@@ -801,10 +801,8 @@ int mf_get_boot_rtc(struct rtc_time *tm)
 		return rc;
 	/* We need to poll here as we are not yet taking interrupts */
 	while (rtc_data.busy) {
-		extern unsigned long lpevent_count;
-		struct ItLpQueue *lpq = get_paca()->lpqueue_ptr;
-		if (lpq && ItLpQueue_isLpIntPending(lpq))
-			lpevent_count += ItLpQueue_process(lpq, NULL);
+		if (hvlpevent_is_pending())
+			process_hvlpevents(NULL);
 	}
 	return rtc_set_tm(rtc_data.rc, rtc_data.ce_msg.ce_msg, tm);
 }

arch/ppc64/kernel/nvram.c

@@ -338,9 +338,8 @@ static int nvram_remove_os_partition(void)
  */
 static int nvram_create_os_partition(void)
 {
-	struct list_head * p;
-	struct nvram_partition *part = NULL;
-	struct nvram_partition *new_part = NULL;
+	struct nvram_partition *part;
+	struct nvram_partition *new_part;
 	struct nvram_partition *free_part = NULL;
 	int seq_init[2] = { 0, 0 };
 	loff_t tmp_index;
@@ -349,8 +348,7 @@ static int nvram_create_os_partition(void)
 	
 	/* Find a free partition that will give us the maximum needed size 
 	   If can't find one that will give us the minimum size needed */
-	list_for_each(p, &nvram_part->partition) {
-		part = list_entry(p, struct nvram_partition, partition);
+	list_for_each_entry(part, &nvram_part->partition, partition) {
 		if (part->header.signature != NVRAM_SIG_FREE)
 			continue;
 

arch/ppc64/kernel/pacaData.c

@@ -42,21 +42,7 @@ extern unsigned long __toc_start;
  * processors.  The processor VPD array needs one entry per physical
  * processor (not thread).
  */
-#ifdef CONFIG_PPC_ISERIES
-#define EXTRA_INITS(number, lpq)					    \
-	.lppaca_ptr = &paca[number].lppaca,				    \
-	.lpqueue_ptr = (lpq),		/* &xItLpQueue, */		    \
-	.reg_save_ptr = &paca[number].reg_save,				    \
-	.reg_save = {							    \
-		.xDesc = 0xd397d9e2,	/* "LpRS" */			    \
-		.xSize = sizeof(struct ItLpRegSave)			    \
-	},
-#else
-#define EXTRA_INITS(number, lpq)
-#endif
-
-#define PACAINITDATA(number,start,lpq,asrr,asrv)			    \
-{									    \
+#define PACA_INIT_COMMON(number, start, asrr, asrv)			    \
 	.lock_token = 0x8000,						    \
 	.paca_index = (number),		/* Paca Index */		    \
 	.default_decr = 0x00ff0000,	/* Initial Decr */		    \
@@ -74,147 +60,79 @@ extern unsigned long __toc_start;
 		.end_of_quantum = 0xfffffffffffffffful,			    \
 		.slb_count = 64,					    \
 	},								    \
-	EXTRA_INITS((number), (lpq))					    \
-}
 
-struct paca_struct paca[] = {
 #ifdef CONFIG_PPC_ISERIES
-	PACAINITDATA( 0, 1, &xItLpQueue, 0, STAB0_VIRT_ADDR),
+#define PACA_INIT_ISERIES(number)					    \
+	.lppaca_ptr = &paca[number].lppaca,				    \
+	.reg_save_ptr = &paca[number].reg_save,				    \
+	.reg_save = {							    \
+		.xDesc = 0xd397d9e2,	/* "LpRS" */			    \
+		.xSize = sizeof(struct ItLpRegSave)			    \
+	}
+
+#define PACA_INIT(number)						    \
+{									    \
+	PACA_INIT_COMMON(number, 0, 0, 0)				    \
+	PACA_INIT_ISERIES(number)					    \
+}
+
+#define BOOTCPU_PACA_INIT(number)					    \
+{									    \
+	PACA_INIT_COMMON(number, 1, 0, STAB0_VIRT_ADDR)			    \
+	PACA_INIT_ISERIES(number)					    \
+}
+
 #else
-	PACAINITDATA( 0, 1, NULL, STAB0_PHYS_ADDR, STAB0_VIRT_ADDR),
+#define PACA_INIT(number)						    \
+{									    \
+	PACA_INIT_COMMON(number, 0, 0, 0)				    \
+}
+
+#define BOOTCPU_PACA_INIT(number)					    \
+{									    \
+	PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, STAB0_VIRT_ADDR)	    \
+}
 #endif
+
+struct paca_struct paca[] = {
+	BOOTCPU_PACA_INIT(0),
 #if NR_CPUS > 1
-	PACAINITDATA( 1, 0, NULL, 0, 0),
-	PACAINITDATA( 2, 0, NULL, 0, 0),
-	PACAINITDATA( 3, 0, NULL, 0, 0),
+	PACA_INIT(  1), PACA_INIT(  2), PACA_INIT(  3),
 #if NR_CPUS > 4
-	PACAINITDATA( 4, 0, NULL, 0, 0),
-	PACAINITDATA( 5, 0, NULL, 0, 0),
-	PACAINITDATA( 6, 0, NULL, 0, 0),
-	PACAINITDATA( 7, 0, NULL, 0, 0),
+	PACA_INIT(  4), PACA_INIT(  5), PACA_INIT(  6), PACA_INIT(  7),
 #if NR_CPUS > 8
-	PACAINITDATA( 8, 0, NULL, 0, 0),
-	PACAINITDATA( 9, 0, NULL, 0, 0),
-	PACAINITDATA(10, 0, NULL, 0, 0),
-	PACAINITDATA(11, 0, NULL, 0, 0),
-	PACAINITDATA(12, 0, NULL, 0, 0),
-	PACAINITDATA(13, 0, NULL, 0, 0),
-	PACAINITDATA(14, 0, NULL, 0, 0),
-	PACAINITDATA(15, 0, NULL, 0, 0),
-	PACAINITDATA(16, 0, NULL, 0, 0),
-	PACAINITDATA(17, 0, NULL, 0, 0),
-	PACAINITDATA(18, 0, NULL, 0, 0),
-	PACAINITDATA(19, 0, NULL, 0, 0),
-	PACAINITDATA(20, 0, NULL, 0, 0),
-	PACAINITDATA(21, 0, NULL, 0, 0),
-	PACAINITDATA(22, 0, NULL, 0, 0),
-	PACAINITDATA(23, 0, NULL, 0, 0),
-	PACAINITDATA(24, 0, NULL, 0, 0),
-	PACAINITDATA(25, 0, NULL, 0, 0),
-	PACAINITDATA(26, 0, NULL, 0, 0),
-	PACAINITDATA(27, 0, NULL, 0, 0),
-	PACAINITDATA(28, 0, NULL, 0, 0),
-	PACAINITDATA(29, 0, NULL, 0, 0),
-	PACAINITDATA(30, 0, NULL, 0, 0),
-	PACAINITDATA(31, 0, NULL, 0, 0),
+	PACA_INIT(  8), PACA_INIT(  9), PACA_INIT( 10), PACA_INIT( 11),
+	PACA_INIT( 12), PACA_INIT( 13), PACA_INIT( 14), PACA_INIT( 15),
+	PACA_INIT( 16), PACA_INIT( 17), PACA_INIT( 18), PACA_INIT( 19),
+	PACA_INIT( 20), PACA_INIT( 21), PACA_INIT( 22), PACA_INIT( 23),
+	PACA_INIT( 24), PACA_INIT( 25), PACA_INIT( 26), PACA_INIT( 27),
+	PACA_INIT( 28), PACA_INIT( 29), PACA_INIT( 30), PACA_INIT( 31),
 #if NR_CPUS > 32
-	PACAINITDATA(32, 0, NULL, 0, 0),
-	PACAINITDATA(33, 0, NULL, 0, 0),
-	PACAINITDATA(34, 0, NULL, 0, 0),
-	PACAINITDATA(35, 0, NULL, 0, 0),
-	PACAINITDATA(36, 0, NULL, 0, 0),
-	PACAINITDATA(37, 0, NULL, 0, 0),
-	PACAINITDATA(38, 0, NULL, 0, 0),
-	PACAINITDATA(39, 0, NULL, 0, 0),
-	PACAINITDATA(40, 0, NULL, 0, 0),
-	PACAINITDATA(41, 0, NULL, 0, 0),
-	PACAINITDATA(42, 0, NULL, 0, 0),
-	PACAINITDATA(43, 0, NULL, 0, 0),
-	PACAINITDATA(44, 0, NULL, 0, 0),
-	PACAINITDATA(45, 0, NULL, 0, 0),
-	PACAINITDATA(46, 0, NULL, 0, 0),
-	PACAINITDATA(47, 0, NULL, 0, 0),
-	PACAINITDATA(48, 0, NULL, 0, 0),
-	PACAINITDATA(49, 0, NULL, 0, 0),
-	PACAINITDATA(50, 0, NULL, 0, 0),
-	PACAINITDATA(51, 0, NULL, 0, 0),
-	PACAINITDATA(52, 0, NULL, 0, 0),
-	PACAINITDATA(53, 0, NULL, 0, 0),
-	PACAINITDATA(54, 0, NULL, 0, 0),
-	PACAINITDATA(55, 0, NULL, 0, 0),
-	PACAINITDATA(56, 0, NULL, 0, 0),
-	PACAINITDATA(57, 0, NULL, 0, 0),
-	PACAINITDATA(58, 0, NULL, 0, 0),
-	PACAINITDATA(59, 0, NULL, 0, 0),
-	PACAINITDATA(60, 0, NULL, 0, 0),
-	PACAINITDATA(61, 0, NULL, 0, 0),
-	PACAINITDATA(62, 0, NULL, 0, 0),
-	PACAINITDATA(63, 0, NULL, 0, 0),
+	PACA_INIT( 32), PACA_INIT( 33), PACA_INIT( 34), PACA_INIT( 35),
+	PACA_INIT( 36), PACA_INIT( 37), PACA_INIT( 38), PACA_INIT( 39),
+	PACA_INIT( 40), PACA_INIT( 41), PACA_INIT( 42), PACA_INIT( 43),
+	PACA_INIT( 44), PACA_INIT( 45), PACA_INIT( 46), PACA_INIT( 47),
+	PACA_INIT( 48), PACA_INIT( 49), PACA_INIT( 50), PACA_INIT( 51),
+	PACA_INIT( 52), PACA_INIT( 53), PACA_INIT( 54), PACA_INIT( 55),
+	PACA_INIT( 56), PACA_INIT( 57), PACA_INIT( 58), PACA_INIT( 59),
+	PACA_INIT( 60), PACA_INIT( 61), PACA_INIT( 62), PACA_INIT( 63),
 #if NR_CPUS > 64
-	PACAINITDATA(64, 0, NULL, 0, 0),
-	PACAINITDATA(65, 0, NULL, 0, 0),
-	PACAINITDATA(66, 0, NULL, 0, 0),
-	PACAINITDATA(67, 0, NULL, 0, 0),
-	PACAINITDATA(68, 0, NULL, 0, 0),
-	PACAINITDATA(69, 0, NULL, 0, 0),
-	PACAINITDATA(70, 0, NULL, 0, 0),
-	PACAINITDATA(71, 0, NULL, 0, 0),
-	PACAINITDATA(72, 0, NULL, 0, 0),
-	PACAINITDATA(73, 0, NULL, 0, 0),
-	PACAINITDATA(74, 0, NULL, 0, 0),
-	PACAINITDATA(75, 0, NULL, 0, 0),
-	PACAINITDATA(76, 0, NULL, 0, 0),
-	PACAINITDATA(77, 0, NULL, 0, 0),
-	PACAINITDATA(78, 0, NULL, 0, 0),
-	PACAINITDATA(79, 0, NULL, 0, 0),
-	PACAINITDATA(80, 0, NULL, 0, 0),
-	PACAINITDATA(81, 0, NULL, 0, 0),
-	PACAINITDATA(82, 0, NULL, 0, 0),
-	PACAINITDATA(83, 0, NULL, 0, 0),
-	PACAINITDATA(84, 0, NULL, 0, 0),
-	PACAINITDATA(85, 0, NULL, 0, 0),
-	PACAINITDATA(86, 0, NULL, 0, 0),
-	PACAINITDATA(87, 0, NULL, 0, 0),
-	PACAINITDATA(88, 0, NULL, 0, 0),
-	PACAINITDATA(89, 0, NULL, 0, 0),
-	PACAINITDATA(90, 0, NULL, 0, 0),
-	PACAINITDATA(91, 0, NULL, 0, 0),
-	PACAINITDATA(92, 0, NULL, 0, 0),
-	PACAINITDATA(93, 0, NULL, 0, 0),
-	PACAINITDATA(94, 0, NULL, 0, 0),
-	PACAINITDATA(95, 0, NULL, 0, 0),
-	PACAINITDATA(96, 0, NULL, 0, 0),
-	PACAINITDATA(97, 0, NULL, 0, 0),
-	PACAINITDATA(98, 0, NULL, 0, 0),
-	PACAINITDATA(99, 0, NULL, 0, 0),
-	PACAINITDATA(100, 0, NULL, 0, 0),
-	PACAINITDATA(101, 0, NULL, 0, 0),
-	PACAINITDATA(102, 0, NULL, 0, 0),
-	PACAINITDATA(103, 0, NULL, 0, 0),
-	PACAINITDATA(104, 0, NULL, 0, 0),
-	PACAINITDATA(105, 0, NULL, 0, 0),
-	PACAINITDATA(106, 0, NULL, 0, 0),
-	PACAINITDATA(107, 0, NULL, 0, 0),
-	PACAINITDATA(108, 0, NULL, 0, 0),
-	PACAINITDATA(109, 0, NULL, 0, 0),
-	PACAINITDATA(110, 0, NULL, 0, 0),
-	PACAINITDATA(111, 0, NULL, 0, 0),
-	PACAINITDATA(112, 0, NULL, 0, 0),
-	PACAINITDATA(113, 0, NULL, 0, 0),
-	PACAINITDATA(114, 0, NULL, 0, 0),
-	PACAINITDATA(115, 0, NULL, 0, 0),
-	PACAINITDATA(116, 0, NULL, 0, 0),
-	PACAINITDATA(117, 0, NULL, 0, 0),
-	PACAINITDATA(118, 0, NULL, 0, 0),
-	PACAINITDATA(119, 0, NULL, 0, 0),
-	PACAINITDATA(120, 0, NULL, 0, 0),
-	PACAINITDATA(121, 0, NULL, 0, 0),
-	PACAINITDATA(122, 0, NULL, 0, 0),
-	PACAINITDATA(123, 0, NULL, 0, 0),
-	PACAINITDATA(124, 0, NULL, 0, 0),
-	PACAINITDATA(125, 0, NULL, 0, 0),
-	PACAINITDATA(126, 0, NULL, 0, 0),
-	PACAINITDATA(127, 0, NULL, 0, 0),
+	PACA_INIT( 64), PACA_INIT( 65), PACA_INIT( 66), PACA_INIT( 67),
+	PACA_INIT( 68), PACA_INIT( 69), PACA_INIT( 70), PACA_INIT( 71),
+	PACA_INIT( 72), PACA_INIT( 73), PACA_INIT( 74), PACA_INIT( 75),
+	PACA_INIT( 76), PACA_INIT( 77), PACA_INIT( 78), PACA_INIT( 79),
+	PACA_INIT( 80), PACA_INIT( 81), PACA_INIT( 82), PACA_INIT( 83),
+	PACA_INIT( 84), PACA_INIT( 85), PACA_INIT( 86), PACA_INIT( 87),
+	PACA_INIT( 88), PACA_INIT( 89), PACA_INIT( 90), PACA_INIT( 91),
+	PACA_INIT( 92), PACA_INIT( 93), PACA_INIT( 94), PACA_INIT( 95),
+	PACA_INIT( 96), PACA_INIT( 97), PACA_INIT( 98), PACA_INIT( 99),
+	PACA_INIT(100), PACA_INIT(101), PACA_INIT(102), PACA_INIT(103),
+	PACA_INIT(104), PACA_INIT(105), PACA_INIT(106), PACA_INIT(107),
+	PACA_INIT(108), PACA_INIT(109), PACA_INIT(110), PACA_INIT(111),
+	PACA_INIT(112), PACA_INIT(113), PACA_INIT(114), PACA_INIT(115),
+	PACA_INIT(116), PACA_INIT(117), PACA_INIT(118), PACA_INIT(119),
+	PACA_INIT(120), PACA_INIT(121), PACA_INIT(122), PACA_INIT(123),
+	PACA_INIT(124), PACA_INIT(125), PACA_INIT(126), PACA_INIT(127),
 #endif
 #endif
 #endif

arch/ppc64/kernel/sysfs.c

@@ -400,7 +400,12 @@ static int __init topology_init(void)
 		struct cpu *c = &per_cpu(cpu_devices, cpu);
 
 #ifdef CONFIG_NUMA
-		parent = &node_devices[cpu_to_node(cpu)];
+		/* The node to which a cpu belongs can't be known
+		 * until the cpu is made present.
+		 */
+		parent = NULL;
+		if (cpu_present(cpu))
+			parent = &node_devices[cpu_to_node(cpu)];
 #endif
 		/*
 		 * For now, we just see if the system supports making

arch/ppc64/kernel/time.c

@@ -99,7 +99,6 @@ unsigned long tb_to_ns_shift;
 struct gettimeofday_struct do_gtod;
 
 extern unsigned long wall_jiffies;
-extern unsigned long lpevent_count;
 extern int smp_tb_synchronized;
 
 extern struct timezone sys_tz;
@@ -367,11 +366,8 @@ int timer_interrupt(struct pt_regs * regs)
 	set_dec(next_dec);
 
 #ifdef CONFIG_PPC_ISERIES
-	{
-		struct ItLpQueue *lpq = lpaca->lpqueue_ptr;
-		if (lpq && ItLpQueue_isLpIntPending(lpq))
-			lpevent_count += ItLpQueue_process(lpq, regs);
-	}
+	if (hvlpevent_is_pending())
+		process_hvlpevents(regs);
 #endif
 
 /* collect purr register values often, for accurate calculations */

include/asm-ppc64/iSeries/ItLpQueue.h

@@ -41,7 +41,7 @@ struct HvLpEvent;
 #define LpEventMaxSize		256
 #define LpEventAlign		64
 
-struct ItLpQueue {
+struct hvlpevent_queue {
 /*
  * The xSlicCurEventPtr is the pointer to the next event stack entry
  * that will become valid.  The OS must peek at this entry to determine
@@ -69,16 +69,13 @@ struct ItLpQueue {
 	char	*xSlicEventStackPtr;	// 0x20
 	u8	xIndex;			// 0x28 unique sequential index.
 	u8	xSlicRsvd[3];		// 0x29-2b
-	u32	xInUseWord;		// 0x2C
-	u64	xLpIntCount;		// 0x30 Total Lp Int msgs processed
-	u64	xLpIntCountByType[9];	// 0x38-0x7F Event counts by type
+	spinlock_t	lock;
 };
 
-extern struct ItLpQueue xItLpQueue;
+extern struct hvlpevent_queue hvlpevent_queue;
 
-extern struct HvLpEvent *ItLpQueue_getNextLpEvent(struct ItLpQueue *);
-extern int ItLpQueue_isLpIntPending(struct ItLpQueue *);
-extern unsigned ItLpQueue_process(struct ItLpQueue *, struct pt_regs *);
-extern void ItLpQueue_clearValid(struct HvLpEvent *);
+extern int hvlpevent_is_pending(void);
+extern void process_hvlpevents(struct pt_regs *);
+extern void setup_hvlpevent_queue(void);
 
 #endif /* _ITLPQUEUE_H */

include/asm-ppc64/paca.h

@@ -20,7 +20,6 @@
 #include	<asm/types.h>
 #include	<asm/lppaca.h>
 #include	<asm/iSeries/ItLpRegSave.h>
-#include	<asm/iSeries/ItLpQueue.h>
 #include	<asm/mmu.h>
 
 register struct paca_struct *local_paca asm("r13");
@@ -62,7 +61,6 @@ struct paca_struct {
 	u16 paca_index;			/* Logical processor number */
 
 	u32 default_decr;		/* Default decrementer value */
-	struct ItLpQueue *lpqueue_ptr;	/* LpQueue handled by this CPU */
 	u64 kernel_toc;			/* Kernel TOC address */
 	u64 stab_real;			/* Absolute address of segment table */
 	u64 stab_addr;			/* Virtual address of segment table */
@@ -91,7 +89,6 @@ struct paca_struct {
 	u64 next_jiffy_update_tb;	/* TB value for next jiffy update */
 	u64 saved_r1;			/* r1 save for RTAS calls */
 	u64 saved_msr;			/* MSR saved here by enter_rtas */
-	u32 lpevent_count;		/* lpevents processed  */
 	u8 proc_enabled;		/* irq soft-enable flag */
 
 	/* not yet used */