[PATCH 6/25 -v2] add native_apic read and write functions, as well as boot clocks ones

From: Glauber de Oliveira Costa
Date: Fri Aug 10 2007 - 18:00:55 EST


Time for the apic handling functions to get their native counterparts.
Also, put the native hook for the boot clocks functions in the apic.h header

Signed-off-by: Glauber de Oliveira Costa <gcosta@xxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
arch/x86_64/kernel/apic.c | 2 +-
arch/x86_64/kernel/smpboot.c | 8 +++++++-
include/asm-x86_64/apic.h | 13 +++++++++++--
3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 900ff38..2d233ef 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -1193,7 +1193,7 @@ int __init APIC_init_uniprocessor (void)
setup_IO_APIC();
else
nr_ioapics = 0;
- setup_boot_APIC_clock();
+ setup_boot_clock();
check_nmi_watchdog();
return 0;
}
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index f99ced6..12d653d 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -338,7 +338,7 @@ void __cpuinit start_secondary(void)
check_tsc_sync_target();

Dprintk("cpu %d: setting up apic clock\n", smp_processor_id());
- setup_secondary_APIC_clock();
+ setup_secondary_clock();

Dprintk("cpu %d: enabling apic timer\n", smp_processor_id());

@@ -468,6 +468,12 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta
num_starts = 2;

/*
+ * Paravirt wants a startup IPI hook here to set up the
+ * target processor state.
+ */
+ startup_ipi_hook(phys_apicid, (unsigned long) start_rip,
+ (unsigned long) init_rsp);
+ /*
* Run STARTUP IPI loop.
*/
Dprintk("#startup loops: %d.\n", num_starts);
diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h
index 85125ef..de17908 100644
--- a/include/asm-x86_64/apic.h
+++ b/include/asm-x86_64/apic.h
@@ -38,16 +38,25 @@ struct pt_regs;
* Basic functions accessing APICs.
*/

-static __inline void apic_write(unsigned long reg, unsigned int v)
+static __inline void native_apic_write(unsigned long reg, unsigned int v)
{
*((volatile unsigned int *)(APIC_BASE+reg)) = v;
}

-static __inline unsigned int apic_read(unsigned long reg)
+static __inline unsigned int native_apic_read(unsigned long reg)
{
return *((volatile unsigned int *)(APIC_BASE+reg));
}

+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define apic_write(reg, v) native_apic_write(reg, v)
+#define apic_read(reg) native_apic_read(reg)
+#define setup_boot_clock(void) setup_boot_APIC_clock(void)
+#define setup_secondary_clock(void) setup_secondary_APIC_clock(void)
+#endif
+
extern void apic_wait_icr_idle(void);
extern unsigned int safe_apic_wait_icr_idle(void);

--
1.4.4.2

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/