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Merge branch 'x86/numa' into x86/devel

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Conflicts:

	arch/x86/Kconfig
	arch/x86/kernel/e820.c
	arch/x86/kernel/efi_64.c
	arch/x86/kernel/mpparse.c
	arch/x86/kernel/setup.c
	arch/x86/kernel/setup_32.c
	arch/x86/mm/init_64.c
	include/asm-x86/proto.h

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2008-07-08 11:59:23 +02:00
parent 3de352bbd8 46f68e1c6b
commit 2b4fa851b2
22 changed files with 610 additions and 277 deletions
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81
arch/x86/kernel/smpboot.c
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@@ -67,22 +67,6 @@
#include <mach_wakecpu.h>
#include <smpboot_hooks.h>
/*
* FIXME: For x86_64, those are defined in other files. But moving them here,
* would make the setup areas dependent on smp, which is a loss. When we
* integrate apic between arches, we can probably do a better job, but
* right now, they'll stay here -- glommer
*/
/* which logical CPU number maps to which CPU (physical APIC ID) */
u16 x86_cpu_to_apicid_init[NR_CPUS] __initdata =
{ [0 ... NR_CPUS-1] = BAD_APICID };
void *x86_cpu_to_apicid_early_ptr;
u16 x86_bios_cpu_apicid_init[NR_CPUS] __initdata
= { [0 ... NR_CPUS-1] = BAD_APICID };
void *x86_bios_cpu_apicid_early_ptr;
#ifdef CONFIG_X86_32
u8 apicid_2_node[MAX_APICID];
static int low_mappings;
@@ -814,6 +798,45 @@ static void __cpuinit do_fork_idle(struct work_struct *work)
complete(&c_idle->done);
}
#ifdef CONFIG_X86_64
/*
* Allocate node local memory for the AP pda.
*
* Must be called after the _cpu_pda pointer table is initialized.
*/
static int __cpuinit get_local_pda(int cpu)
{
struct x8664_pda *oldpda, *newpda;
unsigned long size = sizeof(struct x8664_pda);
int node = cpu_to_node(cpu);
if (cpu_pda(cpu) && !cpu_pda(cpu)->in_bootmem)
return 0;
oldpda = cpu_pda(cpu);
newpda = kmalloc_node(size, GFP_ATOMIC, node);
if (!newpda) {
printk(KERN_ERR "Could not allocate node local PDA "
"for CPU %d on node %d\n", cpu, node);
if (oldpda)
return 0; /* have a usable pda */
else
return -1;
}
if (oldpda) {
memcpy(newpda, oldpda, size);
if (!after_bootmem)
free_bootmem((unsigned long)oldpda, size);
}
newpda->in_bootmem = 0;
cpu_pda(cpu) = newpda;
return 0;
}
#endif /* CONFIG_X86_64 */
static int __cpuinit do_boot_cpu(int apicid, int cpu)
/*
* NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad
@@ -839,19 +862,11 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
}
/* Allocate node local memory for AP pdas */
if (cpu_pda(cpu) == &boot_cpu_pda[cpu]) {
struct x8664_pda *newpda, *pda;
int node = cpu_to_node(cpu);
pda = cpu_pda(cpu);
newpda = kmalloc_node(sizeof(struct x8664_pda), GFP_ATOMIC,
node);
if (newpda) {
memcpy(newpda, pda, sizeof(struct x8664_pda));
cpu_pda(cpu) = newpda;
} else
printk(KERN_ERR
"Could not allocate node local PDA for CPU %d on node %d\n",
cpu, node);
if (cpu > 0) {
boot_error = get_local_pda(cpu);
if (boot_error)
goto restore_state;
/* if can't get pda memory, can't start cpu */
}
#endif
@@ -970,11 +985,13 @@ do_rest:
}
}
restore_state:
if (boot_error) {
/* Try to put things back the way they were before ... */
unmap_cpu_to_logical_apicid(cpu);
#ifdef CONFIG_X86_64
clear_node_cpumask(cpu); /* was set by numa_add_cpu */
numa_remove_cpu(cpu); /* was set by numa_add_cpu */
#endif
cpu_clear(cpu, cpu_callout_map); /* was set by do_boot_cpu() */
cpu_clear(cpu, cpu_initialized); /* was set by cpu_init() */
@@ -1347,6 +1364,8 @@ __init void prefill_possible_map(void)
for (i = 0; i < possible; i++)
cpu_set(i, cpu_possible_map);
nr_cpu_ids = possible;
}
static void __ref remove_cpu_from_maps(int cpu)
@@ -1357,7 +1376,7 @@ static void __ref remove_cpu_from_maps(int cpu)
cpu_clear(cpu, cpu_callin_map);
/* was set by cpu_init() */
clear_bit(cpu, (unsigned long *)&cpu_initialized);
clear_node_cpumask(cpu);
numa_remove_cpu(cpu);
#endif
}