diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2015-01-16 00:22:39 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-01-22 17:10:56 +0300 |
| commit | 30b8b0066cafef274fc92462578ee346211ce7cb (patch) | |
| tree | 62d479f3d0c710ba2500522b86a295f579d86a55 | |
| parent | e714a91f92ca59f7e71e7332b8ec2aa2944f629e (diff) | |
| download | linux-30b8b0066cafef274fc92462578ee346211ce7cb.tar.xz | |
init: Get rid of x86isms
The UP local API support can be set up from an early initcall. No need
for horrible hackery in the init code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Link: http://lkml.kernel.org/r/20150115211703.827943883@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/x86/Kconfig | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/apic.c | 7 | ||||
| -rw-r--r-- | include/linux/smp.h | 7 | ||||
| -rw-r--r-- | init/main.c | 13 |
4 files changed, 18 insertions, 13 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ba397bde7948..ffcc3ca5862a 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -855,6 +855,10 @@ config SCHED_MC source "kernel/Kconfig.preempt" +config UP_LATE_INIT + def_bool y + depends on X86_UP_APIC + config X86_UP_APIC bool "Local APIC support on uniprocessors" depends on X86_32 && !SMP && !X86_32_NON_STANDARD && !PCI_MSI diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index c681e9ba9e47..19f1bc714ee6 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -2267,6 +2267,13 @@ int __init APIC_init_uniprocessor(void) return 0; } +#ifdef CONFIG_UP_LATE_INIT +void __init up_late_init(void) +{ + APIC_init_uniprocessor(); +} +#endif + /* * Power management */ diff --git a/include/linux/smp.h b/include/linux/smp.h index 93dff5fff524..be91db2a7017 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -151,6 +151,13 @@ smp_call_function_any(const struct cpumask *mask, smp_call_func_t func, static inline void kick_all_cpus_sync(void) { } static inline void wake_up_all_idle_cpus(void) { } +#ifdef CONFIG_UP_LATE_INIT +extern void __init up_late_init(void); +static inline void smp_init(void) { up_late_init(); } +#else +static inline void smp_init(void) { } +#endif + #endif /* !SMP */ /* diff --git a/init/main.c b/init/main.c index 61b993767db5..179ada15d08a 100644 --- a/init/main.c +++ b/init/main.c @@ -87,10 +87,6 @@ #include <asm/sections.h> #include <asm/cacheflush.h> -#ifdef CONFIG_X86_LOCAL_APIC -#include <asm/smp.h> -#endif - static int kernel_init(void *); extern void init_IRQ(void); @@ -351,15 +347,6 @@ __setup("rdinit=", rdinit_setup); #ifndef CONFIG_SMP static const unsigned int setup_max_cpus = NR_CPUS; -#ifdef CONFIG_X86_LOCAL_APIC -static void __init smp_init(void) -{ - APIC_init_uniprocessor(); -} -#else -#define smp_init() do { } while (0) -#endif - static inline void setup_nr_cpu_ids(void) { } static inline void smp_prepare_cpus(unsigned int maxcpus) { } #endif |