diff options
| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2007-05-02 19:27:12 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 19:27:12 +0200 |
| commit | a6c4e076ee4c1ea670e4faa55814e63dd08e3f29 (patch) | |
| tree | 42ae132ca8ad99b05904af07ed8abc6aeef33aa8 | |
| parent | 1353ebb4b48151e3810d9a60449edd43a90ea3c3 (diff) | |
| download | talos-obmc-linux-a6c4e076ee4c1ea670e4faa55814e63dd08e3f29.tar.gz talos-obmc-linux-a6c4e076ee4c1ea670e4faa55814e63dd08e3f29.zip | |
[PATCH] i386: clean up identify_cpu
identify_cpu() is used to identify both the boot CPU and secondary
CPUs, but it performs some actions which only apply to the boot CPU.
Those functions are therefore really __init functions, but because
they're called by identify_cpu(), they must be marked __cpuinit.
This patch splits identify_cpu() into identify_boot_cpu() and
identify_secondary_cpu(), and calls the appropriate init functions
from each. Also, identify_boot_cpu() and all the functions it
dominates are marked __init.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
| -rw-r--r-- | arch/i386/kernel/cpu/common.c | 21 | ||||
| -rw-r--r-- | arch/i386/kernel/smpboot.c | 2 | ||||
| -rw-r--r-- | arch/i386/kernel/sysenter.c | 2 | ||||
| -rw-r--r-- | include/asm-i386/processor.h | 3 |
4 files changed, 18 insertions, 10 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 5faf675aab4b..58128585ae60 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -394,7 +394,7 @@ __setup("serialnumber", x86_serial_nr_setup); /* * This does the hard work of actually picking apart the CPU stuff... */ -void __cpuinit identify_cpu(struct cpuinfo_x86 *c) +static void __cpuinit identify_cpu(struct cpuinfo_x86 *c) { int i; @@ -505,15 +505,22 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c) /* Init Machine Check Exception if available. */ mcheck_init(c); +} - if (c == &boot_cpu_data) - sysenter_setup(); +void __init identify_boot_cpu(void) +{ + identify_cpu(&boot_cpu_data); + sysenter_setup(); enable_sep_cpu(); + mtrr_bp_init(); +} - if (c == &boot_cpu_data) - mtrr_bp_init(); - else - mtrr_ap_init(); +void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c) +{ + BUG_ON(c == &boot_cpu_data); + identify_cpu(c); + enable_sep_cpu(); + mtrr_ap_init(); } #ifdef CONFIG_X86_HT diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index 1c3ad9b406ca..61e2842add36 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -155,7 +155,7 @@ static void __cpuinit smp_store_cpu_info(int id) *c = boot_cpu_data; if (id!=0) - identify_cpu(c); + identify_secondary_cpu(c); /* * Mask B, Pentium, but not Pentium MMX */ diff --git a/arch/i386/kernel/sysenter.c b/arch/i386/kernel/sysenter.c index 168f8147d3b4..13ca54a85a1c 100644 --- a/arch/i386/kernel/sysenter.c +++ b/arch/i386/kernel/sysenter.c @@ -72,7 +72,7 @@ extern const char vsyscall_int80_start, vsyscall_int80_end; extern const char vsyscall_sysenter_start, vsyscall_sysenter_end; static struct page *syscall_pages[1]; -int __cpuinit sysenter_setup(void) +int __init sysenter_setup(void) { void *syscall_page = (void *)get_zeroed_page(GFP_ATOMIC); syscall_pages[0] = virt_to_page(syscall_page); diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h index 11838df88603..9d895cc2f312 100644 --- a/include/asm-i386/processor.h +++ b/include/asm-i386/processor.h @@ -116,7 +116,8 @@ extern char ignore_fpu_irq; void __init cpu_detect(struct cpuinfo_x86 *c); -extern void identify_cpu(struct cpuinfo_x86 *); +extern void identify_boot_cpu(void); +extern void identify_secondary_cpu(struct cpuinfo_x86 *); extern void print_cpu_info(struct cpuinfo_x86 *); extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c); extern unsigned short num_cache_leaves; |
