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

into home.transmeta.com:/home/torvalds/v2.5/linux

arch/ia64/hp/sim/simscsi.c

@@ -130,20 +130,6 @@ simscsi_info (struct Scsi_Host *host)
 	return "simulated SCSI host adapter";
 }
 
-int
-simscsi_abort (Scsi_Cmnd *cmd)
-{
-	printk ("simscsi_abort: unimplemented\n");
-	return SCSI_ABORT_SUCCESS;
-}
-
-int
-simscsi_reset (Scsi_Cmnd *cmd, unsigned int reset_flags)
-{
-	printk ("simscsi_reset: unimplemented\n");
-	return SCSI_RESET_SUCCESS;
-}
-
 int
 simscsi_biosparam (struct scsi_device *sdev, struct block_device *n,
 		sector_t capacity, int ip[])

arch/ia64/hp/sim/simscsi.h

@@ -21,20 +21,18 @@ extern int simscsi_biosparam (struct scsi_device *, struct block_device *,
 		sector_t, int[]);
 
 #define SIMSCSI {						\
-	detect:			simscsi_detect,		\
-	release:		simscsi_release,	\
-	info:			simscsi_info,		\
-	queuecommand:		simscsi_queuecommand,	\
-	abort:			simscsi_abort,		\
-	reset:			simscsi_reset,		\
-	bios_param:		simscsi_biosparam,	\
-	can_queue:		SIMSCSI_REQ_QUEUE_LEN,	\
-	this_id:		-1,			\
-	sg_tablesize:		SG_ALL,			\
-	cmd_per_lun:		SIMSCSI_REQ_QUEUE_LEN,	\
-	present:		0,			\
-	unchecked_isa_dma:	0,			\
-	use_clustering:		DISABLE_CLUSTERING	\
+	.detect			= simscsi_detect,		\
+	.release		= simscsi_release,		\
+	.info			= simscsi_info,			\
+	.queuecommand		= simscsi_queuecommand,		\
+	.bios_param		= simscsi_biosparam,		\
+	.can_queue		= SIMSCSI_REQ_QUEUE_LEN,	\
+	.this_id		= -1,				\
+	.sg_tablesize		= SG_ALL,			\
+	.cmd_per_lun		= SIMSCSI_REQ_QUEUE_LEN,	\
+	.present		= 0,				\
+	.unchecked_isa_dma	= 0,				\
+	.use_clustering		= DISABLE_CLUSTERING		\
 }
 
 #endif /* SIMSCSI_H */

arch/ia64/kernel/entry.S

@@ -1245,15 +1245,15 @@ sys_call_table:
 	data8 sys_alloc_hugepages
 	data8 sys_free_hugepages		// 1235
 	data8 sys_exit_group
-	data8 ia64_ni_syscall
+	data8 sys_lookup_dcookie
 	data8 sys_io_setup
 	data8 sys_io_destroy
 	data8 sys_io_getevents			// 1240
 	data8 sys_io_submit
 	data8 sys_io_cancel
-	data8 ia64_ni_syscall
-	data8 ia64_ni_syscall
-	data8 ia64_ni_syscall			// 1245
+	data8 sys_epoll_create
+	data8 sys_epoll_ctl
+	data8 sys_epoll_wait			// 1245
 	data8 ia64_ni_syscall
 	data8 ia64_ni_syscall
 	data8 ia64_ni_syscall

arch/ia64/kernel/setup.c

@@ -625,21 +625,18 @@ cpu_init (void)
 	extern char __per_cpu_end[];
 	int cpu;
 
-	if (__per_cpu_end - __per_cpu_start > PAGE_SIZE)
-		panic("Per-cpu data area too big! (%Zu > %Zu)",
-		      __per_cpu_end - __per_cpu_start, PAGE_SIZE);
-
-
 	/*
 	 * get_free_pages() cannot be used before cpu_init() done.  BSP allocates
 	 * "NR_CPUS" pages for all CPUs to avoid that AP calls get_zeroed_page().
 	 */
 	if (smp_processor_id() == 0) {
-		cpu_data = (unsigned long)alloc_bootmem_pages(PAGE_SIZE * NR_CPUS);
+		cpu_data = (unsigned long) __alloc_bootmem(PERCPU_PAGE_SIZE * NR_CPUS,
+							   PERCPU_PAGE_SIZE,
+							   __pa(MAX_DMA_ADDRESS));
 		for (cpu = 0; cpu < NR_CPUS; cpu++) {
 			memcpy(cpu_data, __phys_per_cpu_start, __per_cpu_end - __per_cpu_start);
 			__per_cpu_offset[cpu] = (char *) cpu_data - __per_cpu_start;
-			cpu_data += PAGE_SIZE;
+			cpu_data += PERCPU_PAGE_SIZE;
 		}
 	}
 	cpu_data = __per_cpu_start + __per_cpu_offset[smp_processor_id()];
@@ -650,7 +647,6 @@ cpu_init (void)
 	cpu_info = cpu_data + ((char *) &__get_cpu_var(cpu_info) - __per_cpu_start);
 #ifdef CONFIG_NUMA
 	cpu_info->node_data = get_node_data_ptr();
-	cpu_info->nodeid = boot_get_local_nodeid();
 #endif
 
 	/*

arch/ia64/kernel/smpboot.c

@@ -430,30 +430,39 @@ smp_build_cpu_map (void)
 
 #ifdef CONFIG_NUMA
 
-char cpu_to_node_map[NR_CPUS] __cacheline_aligned;
+/* on which node is each logical CPU (one cacheline even for 64 CPUs) */
+volatile char cpu_to_node_map[NR_CPUS] __cacheline_aligned;
+/* which logical CPUs are on which nodes */
+volatile unsigned long node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned;
 
 /*
- * Build cpu to node mapping.
+ * Build cpu to node mapping and initialize the per node cpu masks.
  */
 void __init
 build_cpu_to_node_map (void)
 {
-	int cpu, i;
+	int cpu, i, node;
 
+	for(node=0; node<MAX_NUMNODES; node++)
+		node_to_cpu_mask[node] = 0;
 	for(cpu = 0; cpu < NR_CPUS; ++cpu) {
 		/*
 		 * All Itanium NUMA platforms I know use ACPI, so maybe we
 		 * can drop this ifdef completely.                    [EF]
 		 */
 #ifdef CONFIG_ACPI_NUMA
+		node = -1;
 		for (i = 0; i < NR_CPUS; ++i)
 			if (cpu_physical_id(cpu) == node_cpuid[i].phys_id) {
-				cpu_to_node_map[cpu] = node_cpuid[i].nid;
+				node = node_cpuid[i].nid;
 				break;
 			}
 #else
 #		error Fixme: Dunno how to build CPU-to-node map.
 #endif
+		cpu_to_node_map[cpu] = node;
+		if (node >= 0)
+			node_to_cpu_mask[node] |= (1UL << cpu);
 	}
 }
 

arch/ia64/mm/init.c

@@ -287,7 +287,8 @@ ia64_mmu_init (void *my_cpu_data)
 	ia64_srlz_d();
 
 	ia64_itr(0x2, IA64_TR_PERCPU_DATA, PERCPU_ADDR,
-		 pte_val(pfn_pte(__pa(my_cpu_data) >> PAGE_SHIFT, PAGE_KERNEL)), PAGE_SHIFT);
+		 pte_val(pfn_pte(__pa(my_cpu_data) >> PAGE_SHIFT, PAGE_KERNEL)),
+		 PERCPU_PAGE_SHIFT);
 
 	ia64_set_psr(psr);
 	ia64_srlz_i();
@@ -455,8 +456,6 @@ mem_init (void)
 	if (num_pgt_pages > pgt_cache_water[1])
 		pgt_cache_water[1] = num_pgt_pages;
 
-	show_mem();
-
 	/* install the gate page in the global page table: */
 	put_gate_page(virt_to_page(__start_gate_section), GATE_ADDR);
 

arch/ia64/vmlinux.lds.S

@@ -137,7 +137,7 @@ SECTIONS
 	{ *(.kstrtab) }
 
   /* Per-cpu data: */
-  . = ALIGN(PAGE_SIZE);
+  . = ALIGN(PERCPU_PAGE_SIZE);
   __phys_per_cpu_start = .;
   .data.percpu PERCPU_ADDR : AT(__phys_per_cpu_start - PAGE_OFFSET)
 	{
@@ -145,7 +145,7 @@ SECTIONS
 		*(.data.percpu)
 		__per_cpu_end = .;
 	}
-  . = __phys_per_cpu_start + 4096;	/* ensure percpu fits into smallest page size (4KB) */
+  . = __phys_per_cpu_start + PERCPU_PAGE_SIZE;	/* ensure percpu data fits into percpu page size */
 
   .data : AT(ADDR(.data) - PAGE_OFFSET)
 	{ *(.data) *(.gnu.linkonce.d*) CONSTRUCTORS }

include/asm-ia64/ide.h

@@ -83,6 +83,7 @@ ide_init_default_hwifs (void)
 	int index;
 
 	for(index = 0; index < MAX_HWIFS; index++) {
+		memset(&hw, 0, sizeof hw);
 		ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
 		hw.irq = ide_default_irq(ide_default_io_base(index));
 		ide_register_hw(&hw, NULL);

include/asm-ia64/numa.h

@@ -21,7 +21,9 @@
 # define NR_MEMBLKS   (NR_NODES * 8)
 #endif
 
-extern char cpu_to_node_map[NR_CPUS] __cacheline_aligned;
+#include <linux/cache.h>
+extern volatile char cpu_to_node_map[NR_CPUS] __cacheline_aligned;
+extern volatile unsigned long node_to_cpu_mask[NR_NODES] __cacheline_aligned;
 
 /* Stuff below this line could be architecture independent */
 

include/asm-ia64/page.h

@@ -30,6 +30,9 @@
 #define PAGE_MASK		(~(PAGE_SIZE - 1))
 #define PAGE_ALIGN(addr)	(((addr) + PAGE_SIZE - 1) & PAGE_MASK)
 
+#define PERCPU_PAGE_SHIFT	16	/* log2() of max. size of per-CPU area */
+#define PERCPU_PAGE_SIZE	(__IA64_UL_CONST(1) << PERCPU_PAGE_SHIFT)
+
 #ifdef CONFIG_HUGETLB_PAGE
 
 # if defined(CONFIG_HUGETLB_PAGE_SIZE_4GB)

include/asm-ia64/pgtable.h

@@ -202,7 +202,7 @@ ia64_phys_addr_valid (unsigned long addr)
 #define RGN_MAP_LIMIT	((1UL << (4*PAGE_SHIFT - 12)) - PAGE_SIZE)	/* per region addr limit */
 #define RGN_KERNEL	7
 
-#define VMALLOC_START		(0xa000000000000000 + 3*PAGE_SIZE)
+#define VMALLOC_START		(0xa000000000000000 + 3*PERCPU_PAGE_SIZE)
 #define VMALLOC_VMADDR(x)	((unsigned long)(x))
 #define VMALLOC_END		(0xa000000000000000 + (1UL << (4*PAGE_SHIFT - 9)))
 

include/asm-ia64/poll.h

@@ -4,8 +4,8 @@
 /*
  * poll(2) bit definitions.  Chosen to be compatible with Linux/x86.
  *
- * Copyright (C) 1998, 1999 Hewlett-Packard Co
- * Copyright (C) 1998, 1999 David Mosberger-Tang <davidm@hpl.hp.com>
+ * Copyright (C) 1998, 1999, 2002 Hewlett-Packard Co
+ *	David Mosberger-Tang <davidm@hpl.hp.com>
  */
 
 #define POLLIN		0x0001
@@ -20,6 +20,7 @@
 #define POLLWRNORM	0x0100
 #define POLLWRBAND	0x0200
 #define POLLMSG		0x0400
+#define POLLREMOVE	0x1000
 
 struct pollfd {
 	int fd;

include/asm-ia64/processor.h

@@ -179,7 +179,6 @@ struct cpuinfo_ia64 {
 #endif
 #ifdef CONFIG_NUMA
 	struct ia64_node_data *node_data;
-	int nodeid;
 #endif
 };
 
@@ -192,10 +191,6 @@ DECLARE_PER_CPU(struct cpuinfo_ia64, cpu_info);
 #define local_cpu_data		(&__get_cpu_var(cpu_info))
 #define cpu_data(cpu)		(&per_cpu(cpu_info, cpu))
 
-#ifdef CONFIG_NUMA
-#define numa_node_id()		(local_cpu_data->nodeid)
-#endif
-
 extern void identify_cpu (struct cpuinfo_ia64 *);
 extern void print_cpu_info (struct cpuinfo_ia64 *);
 

include/asm-ia64/system.h

@@ -20,8 +20,9 @@
 
 #define KERNEL_START		(PAGE_OFFSET + 68*1024*1024)
 
-#define GATE_ADDR		(0xa000000000000000 + PAGE_SIZE)
-#define PERCPU_ADDR		(0xa000000000000000 + 2*PAGE_SIZE)
+/* 0xa000000000000000 - 0xa000000000000000+PERCPU_MAX_SIZE remain unmapped */
+#define PERCPU_ADDR		(0xa000000000000000 + PERCPU_PAGE_SIZE)
+#define GATE_ADDR		(0xa000000000000000 + 2*PERCPU_PAGE_SIZE)
 
 #ifndef __ASSEMBLY__
 

include/asm-ia64/topology.h

@@ -15,12 +15,22 @@
 
 #include <asm/acpi.h>
 #include <asm/numa.h>
+#include <asm/smp.h>
 
-/* Returns the number of the node containing CPU 'cpu' */
 #ifdef CONFIG_NUMA
-#define __cpu_to_node(cpu) cpu_to_node_map[cpu]
+/*
+ * Returns the number of the node containing CPU 'cpu'
+ */
+#define __cpu_to_node(cpu) (int)(cpu_to_node_map[cpu])
+
+/*
+ * Returns a bitmask of CPUs on Node 'node'.
+ */
+#define __node_to_cpu_mask(node) (node_to_cpu_mask[node])
+
 #else
 #define __cpu_to_node(cpu) (0)
+#define __node_to_cpu_mask(node) (phys_cpu_present_map)
 #endif
 
 /*
@@ -41,34 +51,8 @@
 
 /*
  * Returns the number of the first CPU on Node 'node'.
- * Slow in the current implementation.
- * Who needs this?
  */
-/* #define __node_to_first_cpu(node) pool_cpus[pool_ptr[node]] */
-static inline int __node_to_first_cpu(int node)
-{
-	int i;
-
-	for (i=0; i<NR_CPUS; i++)
-		if (__cpu_to_node(i)==node)
-			return i;
-	BUG(); /* couldn't find a cpu on given node */
-	return -1;
-}
-
-/*
- * Returns a bitmask of CPUs on Node 'node'.
- */
-static inline unsigned long __node_to_cpu_mask(int node)
-{
-	int cpu;
-	unsigned long mask = 0UL;
-
-	for(cpu=0; cpu<NR_CPUS; cpu++)
-		if (__cpu_to_node(cpu) == node)
-			mask |= 1UL << cpu;
-	return mask;
-}
+#define __node_to_first_cpu(node) (__ffs(__node_to_cpu_mask(node)))
 
 /*
  * Returns the number of the first MemBlk on Node 'node'

include/asm-ia64/unistd.h

@@ -226,12 +226,15 @@
 #define __NR_alloc_hugepages		1234
 #define __NR_free_hugepages		1235
 #define __NR_exit_group			1236
-/* 1237 currently unused */
+#define __NR_lookup_dcookie		1237
 #define __NR_io_setup			1238
 #define __NR_io_destroy			1239
 #define __NR_io_getevents		1240
 #define __NR_io_submit			1241
 #define __NR_io_cancel			1242
+#define __NR_epoll_create		1243
+#define __NR_epoll_ctl			1244
+#define __NR_epoll_wait			1245
 
 #if !defined(__ASSEMBLY__) && !defined(ASSEMBLER)