Merge http://lia64.bkbits.net/to-linus-2.5

into home.osdl.org:/home/torvalds/v2.5/linux

arch/ia64/ia32/ia32_entry.S

@@ -142,6 +142,19 @@ GLOBAL_ENTRY(ia32_trace_syscall)
 	;;
 	st8 [r2]=r3				// initialize return code to -ENOSYS
 	br.call.sptk.few rp=invoke_syscall_trace // give parent a chance to catch syscall args
+	// Need to reload arguments (they may be changed by the tracing process)
+	adds r2=IA64_PT_REGS_R9_OFFSET+16,sp	// r2 = &pt_regs.r9
+	adds r3=IA64_PT_REGS_R13_OFFSET+16,sp	// r3 = &pt_regs.r13
+	;;
+	ld4 r33=[r2],8				// r9 == ecx
+	ld4 r37=[r3],16				// r13 == ebp
+	;;
+	ld4 r34=[r2],8				// r10 == edx
+	ld4 r36=[r3],8				// r15 == edi
+	;;
+	ld4 r32=[r2],8				// r11 == ebx
+	ld4 r35=[r3],8				// r14 == esi
+	;;
 .ret2:	br.call.sptk.few rp=b6			// do the syscall
 .ia32_strace_check_retval:
 	cmp.lt p6,p0=r8,r0			// syscall failed?

arch/ia64/kernel/efi.c

@@ -297,9 +297,9 @@ efi_memmap_walk (efi_freemem_callback_t callback, void *arg)
 		u64 start;
 		u64 end;
 	} prev, curr;
-	void *efi_map_start, *efi_map_end, *p, *q, *r;
+	void *efi_map_start, *efi_map_end, *p, *q;
 	efi_memory_desc_t *md, *check_md;
-	u64 efi_desc_size, start, end, granule_addr, first_non_wb_addr = 0;
+	u64 efi_desc_size, start, end, granule_addr, last_granule_addr, first_non_wb_addr = 0;
 
 	efi_map_start = __va(ia64_boot_param->efi_memmap);
 	efi_map_end   = efi_map_start + ia64_boot_param->efi_memmap_size;
@@ -312,41 +312,34 @@ efi_memmap_walk (efi_freemem_callback_t callback, void *arg)
 		if (!(md->attribute & EFI_MEMORY_WB))
 			continue;
 
-		if (md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) > first_non_wb_addr) {
-			/*
-			 * Search for the next run of contiguous WB memory.  Start search
-			 * at first granule boundary covered by md.
-			 */
-			granule_addr = ((md->phys_addr + IA64_GRANULE_SIZE - 1)
-					& -IA64_GRANULE_SIZE);
-			first_non_wb_addr = granule_addr;
-			for (q = p; q < efi_map_end; q += efi_desc_size) {
-				check_md = q;
-
-				if (check_md->attribute & EFI_MEMORY_WB)
-					trim_bottom(check_md, granule_addr);
-
-				if (check_md->phys_addr < granule_addr)
-					continue;
+		/*
+		 * granule_addr is the base of md's first granule.
+		 * [granule_addr - first_non_wb_addr) is guaranteed to
+		 * be contiguous WB memory.
+		 */
+		granule_addr = md->phys_addr & ~(IA64_GRANULE_SIZE - 1);
+		first_non_wb_addr = max(first_non_wb_addr, granule_addr);
 
-				if (!(check_md->attribute & EFI_MEMORY_WB))
-					break;	/* hit a non-WB region; stop search */
+		if (first_non_wb_addr < md->phys_addr) {
+			trim_bottom(md, granule_addr + IA64_GRANULE_SIZE);
+			granule_addr = md->phys_addr & ~(IA64_GRANULE_SIZE - 1);
+			first_non_wb_addr = max(first_non_wb_addr, granule_addr);
+		}
 
-				if (check_md->phys_addr != first_non_wb_addr)
-					break;	/* hit a memory hole; stop search */
+		for (q = p; q < efi_map_end; q += efi_desc_size) {
+			check_md = q;
 
+			if ((check_md->attribute & EFI_MEMORY_WB) &&
+			    (check_md->phys_addr == first_non_wb_addr))
 				first_non_wb_addr += check_md->num_pages << EFI_PAGE_SHIFT;
-			}
-			/* round it down to the previous granule-boundary: */
-			first_non_wb_addr &= -IA64_GRANULE_SIZE;
-
-			if (!(first_non_wb_addr > granule_addr))
-				continue;	/* couldn't find enough contiguous memory */
-
-			for (r = p; r < q; r += efi_desc_size)
-				trim_top(r, first_non_wb_addr);
+			else
+				break;		/* non-WB or hole */
 		}
 
+		last_granule_addr = first_non_wb_addr & ~(IA64_GRANULE_SIZE - 1);
+		if (last_granule_addr < md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT))
+			trim_top(md, last_granule_addr);
+
 		if (is_available_memory(md)) {
 			if (md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) > mem_limit) {
 				if (md->phys_addr > mem_limit)

arch/ia64/kernel/ia64_ksyms.c

@@ -34,13 +34,8 @@ EXPORT_SYMBOL(disable_irq_nosync);
 #include <linux/interrupt.h>
 EXPORT_SYMBOL(probe_irq_mask);
 
-#include <linux/in6.h>
 #include <asm/checksum.h>
-/* not coded yet?? EXPORT_SYMBOL(csum_ipv6_magic); */
-EXPORT_SYMBOL(csum_partial_copy_nocheck);
-EXPORT_SYMBOL(csum_tcpudp_magic);
-EXPORT_SYMBOL(ip_compute_csum);
-EXPORT_SYMBOL(ip_fast_csum);
+EXPORT_SYMBOL(ip_fast_csum);		/* hand-coded assembly */
 
 #include <asm/io.h>
 EXPORT_SYMBOL(__ia64_memcpy_fromio);
@@ -58,9 +53,11 @@ EXPORT_SYMBOL_NOVERS(__up);
 EXPORT_SYMBOL(clear_page);
 
 #ifdef CONFIG_VIRTUAL_MEM_MAP
+#include <linux/bootmem.h>
 #include <asm/pgtable.h>
 EXPORT_SYMBOL(vmalloc_end);
 EXPORT_SYMBOL(ia64_pfn_valid);
+EXPORT_SYMBOL(max_low_pfn);	/* defined by bootmem.c, but not exported by generic code */
 #endif
 
 #include <asm/processor.h>

arch/ia64/kernel/irq.c

@@ -379,8 +379,11 @@ inline void disable_irq_nosync(unsigned int irq)
 
 void disable_irq(unsigned int irq)
 {
+	irq_desc_t *desc = irq_descp(irq);
+
 	disable_irq_nosync(irq);
-	synchronize_irq(irq);
+	if (desc->action)
+		synchronize_irq(irq);
 }
 
 /**
@@ -402,7 +405,7 @@ void enable_irq(unsigned int irq)
 	spin_lock_irqsave(&desc->lock, flags);
 	switch (desc->depth) {
 	case 1: {
-		unsigned int status = desc->status & ~IRQ_DISABLED;
+		unsigned int status = desc->status & ~(IRQ_DISABLED | IRQ_INPROGRESS);
 		desc->status = status;
 		if ((status & (IRQ_PENDING | IRQ_REPLAY)) == IRQ_PENDING) {
 			desc->status = status | IRQ_REPLAY;

arch/ia64/kernel/perfmon.c

@@ -4225,7 +4225,7 @@ pfm_context_load(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 				ret = -EBUSY;
 			} else {
 				pfm_sessions.pfs_sys_use_dbregs++;
-				DPRINT(("load [%d] increased sys_use_dbreg=%lu\n", task->pid, pfm_sessions.pfs_sys_use_dbregs));
+				DPRINT(("load [%d] increased sys_use_dbreg=%u\n", task->pid, pfm_sessions.pfs_sys_use_dbregs));
 				set_dbregs = 1;
 			}
 		}

arch/ia64/kernel/perfmon_default_smpl.c

@@ -93,17 +93,17 @@ default_init(struct task_struct *task, void *buf, unsigned int flags, int cpu, v
 
 	hdr->hdr_version      = PFM_DEFAULT_SMPL_VERSION;
 	hdr->hdr_buf_size     = arg->buf_size;
-	hdr->hdr_cur_pos      = (void *)((unsigned long)buf)+sizeof(*hdr);
-	hdr->hdr_last_pos     = (void *)((unsigned long)buf)+arg->buf_size;
+	hdr->hdr_cur_offs     = sizeof(*hdr);
 	hdr->hdr_overflows    = 0UL;
 	hdr->hdr_count        = 0UL;
 
-	DPRINT(("[%d] buffer=%p buf_size=%lu hdr_size=%lu hdr_version=%u\n",
+	DPRINT(("[%d] buffer=%p buf_size=%lu hdr_size=%lu hdr_version=%u cur_offs=%lu\n",
 		task->pid,
 		buf,
 		hdr->hdr_buf_size,
 		sizeof(*hdr),
-		hdr->hdr_version));
+		hdr->hdr_version,
+		hdr->hdr_cur_offs));
 
 	return 0;
 }
@@ -125,8 +125,8 @@ default_handler(struct task_struct *task, void *buf, pfm_ovfl_arg_t *arg, struct
 	}
 
 	hdr         = (pfm_default_smpl_hdr_t *)buf;
-	cur         = hdr->hdr_cur_pos;
-	last        = hdr->hdr_last_pos;
+	cur         = buf+hdr->hdr_cur_offs;
+	last        = buf+hdr->hdr_buf_size;
 	ovfl_pmd    = arg->ovfl_pmd;
 	ovfl_notify = arg->ovfl_notify;
 
@@ -191,7 +191,7 @@ default_handler(struct task_struct *task, void *buf, pfm_ovfl_arg_t *arg, struct
 	/*
 	 * update position for next entry
 	 */
-	hdr->hdr_cur_pos = cur + sizeof(*ent) + (npmds << 3);
+	hdr->hdr_cur_offs += sizeof(*ent) + (npmds << 3);
 
 	/*
 	 * keep same ovfl_pmds, ovfl_notify
@@ -212,10 +212,9 @@ default_handler(struct task_struct *task, void *buf, pfm_ovfl_arg_t *arg, struct
 	hdr->hdr_overflows++;
 
 	/*
-	 * if no notification is needed, then we saturate the buffer
+	 * if no notification requested, then we saturate the buffer
 	 */
 	if (ovfl_notify == 0) {
-		hdr->hdr_count = 0UL;
 		arg->ovfl_ctrl.bits.notify_user     = 0;
 		arg->ovfl_ctrl.bits.block_task      = 0;
 		arg->ovfl_ctrl.bits.mask_monitoring = 1;
@@ -236,8 +235,8 @@ default_restart(struct task_struct *task, pfm_ovfl_ctrl_t *ctrl, void *buf, stru
 
 	hdr = (pfm_default_smpl_hdr_t *)buf;
 
-	hdr->hdr_count   = 0UL;
-	hdr->hdr_cur_pos = (void *)((unsigned long)buf)+sizeof(*hdr);
+	hdr->hdr_count    = 0UL;
+	hdr->hdr_cur_offs = sizeof(*hdr);
 
 	ctrl->bits.mask_monitoring = 0;
 	ctrl->bits.reset_ovfl_pmds = 1; /* uses long-reset values */

arch/ia64/kernel/process.c

@@ -685,12 +685,16 @@ machine_restart (char *restart_cmd)
 	(*efi.reset_system)(EFI_RESET_WARM, 0, 0, 0);
 }
 
+EXPORT_SYMBOL(machine_restart);
+
 void
 machine_halt (void)
 {
 	cpu_halt();
 }
 
+EXPORT_SYMBOL(machine_halt);
+
 void
 machine_power_off (void)
 {
@@ -698,3 +702,5 @@ machine_power_off (void)
 		pm_power_off();
 	machine_halt();
 }
+
+EXPORT_SYMBOL(machine_power_off);

arch/ia64/kernel/setup.c

@@ -327,9 +327,11 @@ setup_arch (char **cmdline_p)
 	 * because we don't *really* know whether there's anything there, but we hope that
 	 * all new boxes will implement HCDP.
 	 */
-	extern unsigned char acpi_legacy_devices;
-	if (!efi.hcdp && acpi_legacy_devices)
-		setup_serial_legacy();
+	{
+		extern unsigned char acpi_legacy_devices;
+		if (!efi.hcdp && acpi_legacy_devices)
+			setup_serial_legacy();
+	}
 #endif
 
 #ifdef CONFIG_VT

arch/ia64/lib/checksum.c

 /*
  * Network checksum routines
  *
- * Copyright (C) 1999 Hewlett-Packard Co
- * Copyright (C) 1999 Stephane Eranian <eranian@hpl.hp.com>
+ * Copyright (C) 1999, 2003 Hewlett-Packard Co
+ *	Stephane Eranian <eranian@hpl.hp.com>
  *
  * Most of the code coming from arch/alpha/lib/checksum.c
  *
@@ -10,6 +10,7 @@
  * in an architecture-specific manner due to speed..
  */
 
+#include <linux/module.h>
 #include <linux/string.h>
 
 #include <asm/byteorder.h>
@@ -40,6 +41,8 @@ csum_tcpudp_magic (unsigned long saddr, unsigned long daddr, unsigned short len,
 			   ((unsigned long) proto << 8));
 }
 
+EXPORT_SYMBOL(csum_tcpudp_magic);
+
 unsigned int
 csum_tcpudp_nofold (unsigned long saddr, unsigned long daddr, unsigned short len,
 		    unsigned short proto, unsigned int sum)
@@ -84,6 +87,7 @@ csum_partial (const unsigned char * buff, int len, unsigned int sum)
 	return result;
 }
 
+EXPORT_SYMBOL(csum_partial);
 
 /*
  * this routine is used for miscellaneous IP-like checksums, mainly
@@ -94,3 +98,5 @@ ip_compute_csum (unsigned char * buff, int len)
 {
 	return ~do_csum(buff,len);
 }
+
+EXPORT_SYMBOL(ip_compute_csum);

arch/ia64/lib/csum_partial_copy.c

 /*
  * Network Checksum & Copy routine
  *
- * Copyright (C) 1999 Hewlett-Packard Co
- * Copyright (C) 1999 Stephane Eranian <eranian@hpl.hp.com>
+ * Copyright (C) 1999, 2003 Hewlett-Packard Co
+ *	Stephane Eranian <eranian@hpl.hp.com>
  *
  * Most of the code has been imported from Linux/Alpha
  */
 
+#include <linux/module.h>
 #include <linux/types.h>
 #include <linux/string.h>
 
@@ -146,3 +147,4 @@ csum_partial_copy_nocheck(const char *src, char *dst, int len, unsigned int sum)
 	return do_csum_partial_copy_from_user(src, dst, len, sum, NULL);
 }
 
+EXPORT_SYMBOL(csum_partial_copy_nocheck);

arch/ia64/mm/init.c

@@ -13,6 +13,7 @@
 #include <linux/elf.h>
 #include <linux/mm.h>
 #include <linux/mmzone.h>
+#include <linux/module.h>
 #include <linux/personality.h>
 #include <linux/reboot.h>
 #include <linux/slab.h>
@@ -43,6 +44,8 @@ unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL;
 #ifdef CONFIG_VIRTUAL_MEM_MAP
   unsigned long vmalloc_end = VMALLOC_END_INIT;
   struct page *vmem_map;
+
+  EXPORT_SYMBOL(vmem_map);
 #endif
 
 static int pgt_cache_water[2] = { 25, 50 };

arch/ia64/mm/numa.c

@@ -11,12 +11,19 @@
  */
 
 #include <linux/config.h>
+#include <linux/cpu.h>
 #include <linux/kernel.h>
+#include <linux/memblk.h>
 #include <linux/mm.h>
+#include <linux/node.h>
 #include <linux/init.h>
 #include <linux/bootmem.h>
 #include <asm/numa.h>
 
+static struct memblk *sysfs_memblks;
+static struct node *sysfs_nodes;
+static struct cpu *sysfs_cpus;
+
 /*
  * The following structures are usually initialized by ACPI or
  * similar mechanisms and describe the NUMA characteristics of the machine.
@@ -43,3 +50,52 @@ paddr_to_nid(unsigned long paddr)
 
 	return (i < num_memblks) ? node_memblk[i].nid : (num_memblks ? -1 : 0);
 }
+
+static int __init topology_init(void)
+{
+	int i, err = 0;
+
+	sysfs_nodes = kmalloc(sizeof(struct node) * numnodes, GFP_KERNEL);
+	if (!sysfs_nodes) {
+		err = -ENOMEM;
+		goto out;
+	}
+	memset(sysfs_nodes, 0, sizeof(struct node) * numnodes);
+
+	sysfs_memblks = kmalloc(sizeof(struct memblk) * num_memblks,
+				GFP_KERNEL);
+	if (!sysfs_memblks) {
+		kfree(sysfs_nodes);
+		err = -ENOMEM;
+		goto out;
+	}
+	memset(sysfs_memblks, 0, sizeof(struct memblk) * num_memblks);
+
+	sysfs_cpus = kmalloc(sizeof(struct cpu) * NR_CPUS, GFP_KERNEL);
+	if (!sysfs_cpus) {
+		kfree(sysfs_memblks);
+		kfree(sysfs_nodes);
+		err = -ENOMEM;
+		goto out;
+	}
+	memset(sysfs_cpus, 0, sizeof(struct cpu) * NR_CPUS);
+
+	for (i = 0; i < numnodes; i++)
+		if ((err = register_node(&sysfs_nodes[i], i, 0)))
+			goto out;
+
+	for (i = 0; i < num_memblks; i++)
+		if ((err = register_memblk(&sysfs_memblks[i], i,
+					   &sysfs_nodes[memblk_to_node(i)])))
+			goto out;
+
+	for (i = 0; i < NR_CPUS; i++)
+		if (cpu_online(i))
+			if((err = register_cpu(&sysfs_cpus[i], i,
+					       &sysfs_nodes[cpu_to_node(i)])))
+				goto out;
+ out:
+	return err;
+}
+
+__initcall(topology_init);

include/asm-ia64/perfmon_default_smpl.h

@@ -36,11 +36,12 @@ typedef struct {
  */
 typedef struct {
 	unsigned long	hdr_count;		/* how many valid entries */
-	void		*hdr_cur_pos;		/* current position in the buffer */
-	void		*hdr_last_pos;		/* first byte beyond buffer */
+	unsigned long	hdr_cur_offs;		/* current offset from top of buffer */
+	unsigned long	hdr_reserved2;		/* reserved for future use */
 
 	unsigned long	hdr_overflows;		/* how many times the buffer overflowed */
 	unsigned long   hdr_buf_size;		/* how many bytes in the buffer */
+
 	unsigned int	hdr_version;		/* contains perfmon version (smpl format diffs) */
 	unsigned int	hdr_reserved1;		/* for future use */
 	unsigned long	hdr_reserved[10];	/* for future use */