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OpenCloudOS-Kernel
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x86/non-x86: percpu, node ids, apic ids x86.git fixup 

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Mike Travis 2008-01-30 13:33:32 +01:00 committed by Ingo Molnar
parent 3212bff370
commit dd5af90a7f
4 changed files with 13 additions and 13 deletions
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2
arch/x86/Kconfig
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@ -97,7 +97,7 @@ config GENERIC_TIME_VSYSCALL
bool
default X86_64
config ARCH_SETS_UP_PER_CPU_AREA
config HAVE_SETUP_PER_CPU_AREA
def_bool X86_64
config ARCH_SUPPORTS_OPROFILE

12
include/asm-generic/percpu.h
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@ -47,7 +47,7 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
#endif
/*
* A percpu variable may point to a discarded reghions. The following are
* A percpu variable may point to a discarded regions. The following are
* established ways to produce a usable pointer from the percpu variable
* offset.
*/
@ -59,18 +59,10 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
(*SHIFT_PERCPU_PTR(&per_cpu_var(var), __my_cpu_offset))
#ifdef CONFIG_ARCH_SETS_UP_PER_CPU_AREA
#ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA
extern void setup_per_cpu_areas(void);
#endif
/* A macro to avoid #include hell... */
#define percpu_modcopy(pcpudst, src, size) \
do { \
unsigned int __i; \
for_each_possible_cpu(__i) \
memcpy((pcpudst)+per_cpu_offset(__i), \
(src), (size)); \
} while (0)
#else /* ! SMP */
#define per_cpu(var, cpu) (*((void)(cpu), &per_cpu_var(var)))

4
init/main.c
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@ -363,7 +363,7 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
#else
#ifndef CONFIG_ARCH_SETS_UP_PER_CPU_AREA
#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(__per_cpu_offset);
@ -384,7 +384,7 @@ static void __init setup_per_cpu_areas(void)
ptr += size;
}
}
#endif /* CONFIG_ARCH_SETS_UP_CPU_AREA */
#endif /* CONFIG_HAVE_SETUP_PER_CPU_AREA */
/* Called by boot processor to activate the rest. */
static void __init smp_init(void)

8
kernel/module.c
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@ -430,6 +430,14 @@ static unsigned int find_pcpusec(Elf_Ehdr *hdr,
return find_sec(hdr, sechdrs, secstrings, ".data.percpu");
}
static void percpu_modcopy(void *pcpudest, const void *from, unsigned long size)
{
int cpu;
for_each_possible_cpu(cpu)
memcpy(pcpudest + per_cpu_offset(cpu), from, size);
}
static int percpu_modinit(void)
{
pcpu_num_used = 2;