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Date: Sat, 19 Jul 2008 18:02:26 -0700
From: Yinghai Lu <yhlu.kernel@...il.com>
To: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH] x86: add pre_time_init in x86_ops
so numaq could use that to call numaq_pre_time_init
Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>
---
arch/x86/kernel/numaq_32.c | 7 +++++++
arch/x86/kernel/setup.c | 8 --------
arch/x86/kernel/time_32.c | 1 +
arch/x86/mach-default/setup.c | 10 ++++++++++
include/asm-x86/arch_hooks.h | 1 +
include/asm-x86/setup.h | 1 +
6 files changed, 20 insertions(+), 8 deletions(-)
Index: linux-2.6/arch/x86/kernel/numaq_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/numaq_32.c
+++ linux-2.6/arch/x86/kernel/numaq_32.c
@@ -84,6 +84,12 @@ void __init numaq_tsc_disable(void)
}
}
+static int __init numaq_pre_time_init(void)
+{
+ numaq_tsc_disable();
+ return 0;
+}
+
int found_numaq;
/*
* Have to match translation table entries to main table entries by counter
@@ -224,6 +230,7 @@ static void __init smp_read_mpc_oem(stru
}
static struct x86_ops numaq_x86_ops __initdata = {
+ .arch_pre_time_init = numaq_pre_time_init,
.arch_time_init = NULL,
.arch_pre_intr_init = NULL,
.arch_memory_setup = NULL,
Index: linux-2.6/arch/x86/kernel/setup.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/setup.c
+++ linux-2.6/arch/x86/kernel/setup.c
@@ -858,14 +858,6 @@ void __init setup_arch(char **cmdline_p)
init_cpu_to_node();
#endif
-#ifdef CONFIG_X86_NUMAQ
- /*
- * need to check online nodes num, call it
- * here before time_init/tsc_init
- */
- numaq_tsc_disable();
-#endif
-
init_apic_mappings();
ioapic_init_mappings();
Index: linux-2.6/arch/x86/kernel/time_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/time_32.c
+++ linux-2.6/arch/x86/kernel/time_32.c
@@ -129,6 +129,7 @@ void __init hpet_time_init(void)
*/
void __init time_init(void)
{
+ pre_time_init_hook();
tsc_init();
late_time_init = choose_time_init();
}
Index: linux-2.6/arch/x86/mach-default/setup.c
===================================================================
--- linux-2.6.orig/arch/x86/mach-default/setup.c
+++ linux-2.6/arch/x86/mach-default/setup.c
@@ -103,6 +103,16 @@ static struct irqaction irq0 = {
};
/**
+ * pre_time_init_hook - do any specific initialisations before.
+ *
+ **/
+void __init pre_time_init_hook(void)
+{
+ if (x86_ops->arch_pre_time_init)
+ x86_ops->arch_pre_time_init();
+}
+
+/**
* time_init_hook - do any specific initialisations for the system timer.
*
* Description:
Index: linux-2.6/include/asm-x86/arch_hooks.h
===================================================================
--- linux-2.6.orig/include/asm-x86/arch_hooks.h
+++ linux-2.6/include/asm-x86/arch_hooks.h
@@ -21,6 +21,7 @@ extern void intr_init_hook(void);
extern void pre_intr_init_hook(void);
extern void pre_setup_arch_hook(void);
extern void trap_init_hook(void);
+extern void pre_time_init_hook(void);
extern void time_init_hook(void);
extern void mca_nmi_hook(void);
Index: linux-2.6/include/asm-x86/setup.h
===================================================================
--- linux-2.6.orig/include/asm-x86/setup.h
+++ linux-2.6/include/asm-x86/setup.h
@@ -23,6 +23,7 @@ struct mpc_config_processor;
struct mpc_config_bus;
struct mp_config_oemtable;
struct x86_ops {
+ int (*arch_pre_time_init)(void);
int (*arch_time_init)(void);
int (*arch_pre_intr_init)(void);
int (*arch_intr_init)(void);
--
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