diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 23:00:05 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 23:00:05 +0200 |
| commit | 453c1404c5273a30d715e5a83372a78cff70b6d9 (patch) | |
| tree | 94a5a3abd85137c4def416a84a45989751260f20 /include/asm-x86/apic.h | |
| parent | a208f37a465e222218974ab20a31b42b7b4893b2 (diff) | |
| parent | 35b680557f95564f70f21a8d3f5c72e101fab260 (diff) | |
Merge branch 'x86/apic' into x86/x2apic
Conflicts:
arch/x86/kernel/paravirt.c
arch/x86/kernel/smpboot.c
arch/x86/kernel/vmi_32.c
arch/x86/lguest/boot.c
arch/x86/xen/enlighten.c
include/asm-x86/apic.h
include/asm-x86/paravirt.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/apic.h')
| -rw-r--r-- | include/asm-x86/apic.h | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h index fcd2f01277b..300b65e5724 100644 --- a/include/asm-x86/apic.h +++ b/include/asm-x86/apic.h @@ -3,6 +3,8 @@ #include <linux/pm.h> #include <linux/delay.h> + +#include <asm/alternative.h> #include <asm/fixmap.h> #include <asm/apicdef.h> #include <asm/processor.h> @@ -12,7 +14,7 @@ #define ARCH_APICTIMER_STOPS_ON_C3 1 -#define Dprintk(x...) +#define Dprintk printk /* * Debugging macros @@ -37,7 +39,7 @@ extern void generic_apic_probe(void); #ifdef CONFIG_X86_LOCAL_APIC -extern int apic_verbosity; +extern unsigned int apic_verbosity; extern int local_apic_timer_c2_ok; extern int ioapic_force; @@ -57,12 +59,11 @@ extern int is_vsmp_box(void); static inline void native_apic_mem_write(u32 reg, u32 v) { - *((volatile u32 *)(APIC_BASE + reg)) = v; -} + volatile u32 *addr = (volatile u32 *)(APIC_BASE + reg); -static inline void native_apic_mem_write_atomic(u32 reg, u32 v) -{ - (void)xchg((u32 *)(APIC_BASE + reg), v); + alternative_io("movl %0, %1", "xchgl %0, %1", X86_FEATURE_11AP, + ASM_OUTPUT2("=r" (v), "=m" (*addr)), + ASM_OUTPUT2("0" (v), "m" (*addr))); } static inline u32 native_apic_mem_read(u32 reg) @@ -101,7 +102,6 @@ extern void x2apic_icr_write(u32 low, u32 id); struct apic_ops { u32 (*read)(u32 reg); void (*write)(u32 reg, u32 v); - void (*write_atomic)(u32 reg, u32 v); u64 (*icr_read)(void); void (*icr_write)(u32 low, u32 high); void (*wait_icr_idle)(void); @@ -112,7 +112,6 @@ extern struct apic_ops *apic_ops; #define apic_read (apic_ops->read) #define apic_write (apic_ops->write) -#define apic_write_atomic (apic_ops->write_atomic) #define apic_icr_read (apic_ops->icr_read) #define apic_icr_write (apic_ops->icr_write) #define apic_wait_icr_idle (apic_ops->wait_icr_idle) @@ -120,16 +119,6 @@ extern struct apic_ops *apic_ops; extern int get_physical_broadcast(void); -#ifdef CONFIG_X86_GOOD_APIC -# define FORCE_READ_AROUND_WRITE 0 -# define apic_read_around(x) -# define apic_write_around(x, y) apic_write((x), (y)) -#else -# define FORCE_READ_AROUND_WRITE 1 -# define apic_read_around(x) apic_read(x) -# define apic_write_around(x, y) apic_write_atomic((x), (y)) -#endif - #ifdef CONFIG_X86_64 static inline void ack_x2APIC_irq(void) { @@ -150,7 +139,7 @@ static inline void ack_APIC_irq(void) /* Docs say use 0 for future compatibility */ #ifdef CONFIG_X86_32 - apic_write_around(APIC_EOI, 0); + apic_write(APIC_EOI, 0); #else native_apic_mem_write(APIC_EOI, 0); #endif |