Commit 8d7e3517 authored by Tony Luck's avatar Tony Luck
Browse files

[IA64] fix generic/up builds 



Jesse Barnes provided the original version of this patch months ago, but
other changes kept conflicting with it, so it got deferred.  Greg Edwards
dug it out of obscurity just over a week ago, and almost immediately
another conflicting patch appeared (Bob Picco's memory-less nodes).

I've resolved the conflicts and got it running again.  CONFIG_SGI_TIOCX
is set to "y" in defconfig, which causes a Tiger to not boot (oops in
tiocx_init).  But that can be resolved later ... get this in now before it
gets stale again.

Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent 564601a5

arch/ia64/kernel/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ obj-$(CONFIG_IA64_PALINFO) += palinfo.o 
obj-$(CONFIG_IOSAPIC)		+= iosapic.o

obj-$(CONFIG_MODULES)		+= module.o

obj-$(CONFIG_SMP)		+= smp.o smpboot.o domain.o

obj-$(CONFIG_NUMA)		+= numa.o

obj-$(CONFIG_PERFMON)		+= perfmon_default_smpl.o

obj-$(CONFIG_IA64_CYCLONE)	+= cyclone.o

obj-$(CONFIG_IA64_MCA_RECOVERY)	+= mca_recovery.o

arch/ia64/kernel/acpi.c

+3 −1
Original line number Diff line number Diff line
@@ -640,8 +640,10 @@ acpi_boot_init (void) 
			if (smp_boot_data.cpu_phys_id[cpu] != hard_smp_processor_id())

				node_cpuid[i++].phys_id = smp_boot_data.cpu_phys_id[cpu];

	}

	build_cpu_to_node_map();

# endif

#endif

#ifdef CONFIG_ACPI_NUMA

	build_cpu_to_node_map();

#endif

	/* Make boot-up look pretty */

	printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus, total_cpus);

arch/ia64/kernel/numa.c

0 → 100644
+57 −0
Original line number Diff line number Diff line 
/*

 * 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.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 *

 * ia64 kernel NUMA specific stuff

 *

 * Copyright (C) 2002 Erich Focht <efocht@ess.nec.de>

 * Copyright (C) 2004 Silicon Graphics, Inc.

 *   Jesse Barnes <jbarnes@sgi.com>

 */

#include <linux/config.h>

#include <linux/topology.h>

#include <linux/module.h>

#include <asm/processor.h>

#include <asm/smp.h>



u8 cpu_to_node_map[NR_CPUS] __cacheline_aligned;

EXPORT_SYMBOL(cpu_to_node_map);



cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned;



/**

 * build_cpu_to_node_map - setup cpu to node and node to cpumask arrays

 *

 * Build cpu to node mapping and initialize the per node cpu masks using

 * info from the node_cpuid array handed to us by ACPI.

 */

void __init build_cpu_to_node_map(void)

{

	int cpu, i, node;



	for(node=0; node < MAX_NUMNODES; node++)

		cpus_clear(node_to_cpu_mask[node]);



	for(cpu = 0; cpu < NR_CPUS; ++cpu) {

		node = -1;

		for (i = 0; i < NR_CPUS; ++i)

			if (cpu_physical_id(cpu) == node_cpuid[i].phys_id) {

				node = node_cpuid[i].nid;

				break;

			}

		cpu_to_node_map[cpu] = (node >= 0) ? node : 0;

		if (node >= 0)

			cpu_set(cpu, node_to_cpu_mask[node]);

	}

}

arch/ia64/kernel/smpboot.c

+0 −41
Original line number Diff line number Diff line
@@ -525,47 +525,6 @@ smp_build_cpu_map (void) 
	}

}



#ifdef CONFIG_NUMA



/* on which node is each logical CPU (one cacheline even for 64 CPUs) */

u8 cpu_to_node_map[NR_CPUS] __cacheline_aligned;

EXPORT_SYMBOL(cpu_to_node_map);

/* which logical CPUs are on which nodes */

cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned;



/*

 * Build cpu to node mapping and initialize the per node cpu masks.

 */

void __init

build_cpu_to_node_map (void)

{

	int cpu, i, node;



	for(node=0; node<MAX_NUMNODES; node++)

		cpus_clear(node_to_cpu_mask[node]);

	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) {

				node = node_cpuid[i].nid;

				break;

			}

#else

#		error Fixme: Dunno how to build CPU-to-node map.

#endif

		cpu_to_node_map[cpu] = (node >= 0) ? node : 0;

		if (node >= 0)

			cpu_set(cpu, node_to_cpu_mask[node]);

	}

}



#endif /* CONFIG_NUMA */



/*

 * Cycle through the APs sending Wakeup IPIs to boot each.

 */

arch/ia64/mm/discontig.c

+49 −23
Original line number Diff line number Diff line
@@ -125,6 +125,33 @@ static unsigned long __init compute_pernodesize(int node) 
	return pernodesize;

}



/**

 * per_cpu_node_setup - setup per-cpu areas on each node

 * @cpu_data: per-cpu area on this node

 * @node: node to setup

 *

 * Copy the static per-cpu data into the region we just set aside and then

 * setup __per_cpu_offset for each CPU on this node.  Return a pointer to

 * the end of the area.

 */

static void *per_cpu_node_setup(void *cpu_data, int node)

{

#ifdef CONFIG_SMP

	int cpu;



	for (cpu = 0; cpu < NR_CPUS; cpu++) {

		if (node == node_cpuid[cpu].nid) {

			memcpy(__va(cpu_data), __phys_per_cpu_start,

			       __per_cpu_end - __per_cpu_start);

			__per_cpu_offset[cpu] = (char*)__va(cpu_data) -

				__per_cpu_start;

			cpu_data += PERCPU_PAGE_SIZE;

		}

	}

#endif

	return cpu_data;

}



/**

 * fill_pernode - initialize pernode data.

 * @node: the node id.
@@ -135,7 +162,7 @@ static void __init fill_pernode(int node, unsigned long pernode, 
	unsigned long pernodesize)

{

	void *cpu_data;

	int cpus = early_nr_cpus_node(node), cpu;

	int cpus = early_nr_cpus_node(node);

	struct bootmem_data *bdp = &mem_data[node].bootmem_data;



	mem_data[node].pernode_addr = pernode;
@@ -155,23 +182,11 @@ static void __init fill_pernode(int node, unsigned long pernode, 
	mem_data[node].pgdat->bdata = bdp;

	pernode += L1_CACHE_ALIGN(sizeof(pg_data_t));



	/*

	 * Copy the static per-cpu data into the region we

	 * just set aside and then setup __per_cpu_offset

	 * for each CPU on this node.

	 */

	for (cpu = 0; cpu < NR_CPUS; cpu++) {

		if (node == node_cpuid[cpu].nid) {

			memcpy(__va(cpu_data), __phys_per_cpu_start,

			       __per_cpu_end - __per_cpu_start);

			__per_cpu_offset[cpu] = (char*)__va(cpu_data) -

				__per_cpu_start;

			cpu_data += PERCPU_PAGE_SIZE;

		}

	}

	cpu_data = per_cpu_node_setup(cpu_data, node);



	return;

}



/**

 * find_pernode_space - allocate memory for memory map and per-node structures

 * @start: physical start of range
@@ -300,8 +315,8 @@ static void __init reserve_pernode_space(void) 
 */

static void __init initialize_pernode_data(void)

{

	int cpu, node;

	pg_data_t *pgdat_list[MAX_NUMNODES];

	int cpu, node;



	for_each_online_node(node)

		pgdat_list[node] = mem_data[node].pgdat;
@@ -311,12 +326,22 @@ static void __init initialize_pernode_data(void) 
		memcpy(mem_data[node].node_data->pg_data_ptrs, pgdat_list,

		       sizeof(pgdat_list));

	}



#ifdef CONFIG_SMP

	/* Set the node_data pointer for each per-cpu struct */

	for (cpu = 0; cpu < NR_CPUS; cpu++) {

		node = node_cpuid[cpu].nid;

		per_cpu(cpu_info, cpu).node_data = mem_data[node].node_data;

	}

#else

	{

		struct cpuinfo_ia64 *cpu0_cpu_info;

		cpu = 0;

		node = node_cpuid[cpu].nid;

		cpu0_cpu_info = (struct cpuinfo_ia64 *)(__phys_per_cpu_start +

			((char *)&per_cpu__cpu_info - __per_cpu_start));

		cpu0_cpu_info->node_data = mem_data[node].node_data;

	}

#endif /* CONFIG_SMP */

}



/**
@@ -461,6 +486,7 @@ void __init find_memory(void) 
	find_initrd();

}



#ifdef CONFIG_SMP

/**

 * per_cpu_init - setup per-cpu variables

 *
@@ -471,15 +497,15 @@ void *per_cpu_init(void) 
{

	int cpu;



	if (smp_processor_id() == 0) {

		for (cpu = 0; cpu < NR_CPUS; cpu++) {

			per_cpu(local_per_cpu_offset, cpu) =

				__per_cpu_offset[cpu];

		}

	}

	if (smp_processor_id() != 0)

		return __per_cpu_start + __per_cpu_offset[smp_processor_id()];



	for (cpu = 0; cpu < NR_CPUS; cpu++)

		per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu];



	return __per_cpu_start + __per_cpu_offset[smp_processor_id()];

}

#endif /* CONFIG_SMP */



/**

 * show_mem - give short summary of memory stats

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