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authorJeremy Fitzhardinge <jeremy@goop.org>2007-05-02 19:27:12 +0200
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 19:27:12 +0200
commita6c4e076ee4c1ea670e4faa55814e63dd08e3f29 (patch)
tree42ae132ca8ad99b05904af07ed8abc6aeef33aa8
parent1353ebb4b48151e3810d9a60449edd43a90ea3c3 (diff)
[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.c21
-rw-r--r--arch/i386/kernel/smpboot.c2
-rw-r--r--arch/i386/kernel/sysenter.c2
-rw-r--r--include/asm-i386/processor.h3
4 files changed, 18 insertions, 10 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index 5faf675aab4..58128585ae6 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 1c3ad9b406c..61e2842add3 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 168f8147d3b..13ca54a85a1 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 11838df8860..9d895cc2f31 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;