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author | David S. Miller <davem@davemloft.net> | 2008-10-11 12:39:35 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-10-11 12:39:35 -0700 |
commit | 56c5d900dbb8e042bfad035d18433476931d8f93 (patch) | |
tree | 00b793965beeef10db03e0ff021d2d965c410759 /include/asm-x86/apic.h | |
parent | 4dd95b63ae25c5cad6986829b5e8788e9faa0330 (diff) | |
parent | ead9d23d803ea3a73766c3cb27bf7563ac8d7266 (diff) | |
download | op-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.zip op-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.tar.gz |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
sound/core/memalloc.c
Diffstat (limited to 'include/asm-x86/apic.h')
-rw-r--r-- | include/asm-x86/apic.h | 80 |
1 files changed, 68 insertions, 12 deletions
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h index 133c998..d76a083 100644 --- a/include/asm-x86/apic.h +++ b/include/asm-x86/apic.h @@ -1,5 +1,5 @@ -#ifndef _ASM_X86_APIC_H -#define _ASM_X86_APIC_H +#ifndef ASM_X86__APIC_H +#define ASM_X86__APIC_H #include <linux/pm.h> #include <linux/delay.h> @@ -9,6 +9,8 @@ #include <asm/apicdef.h> #include <asm/processor.h> #include <asm/system.h> +#include <asm/cpufeature.h> +#include <asm/msr.h> #define ARCH_APICTIMER_STOPS_ON_C3 1 @@ -47,15 +49,18 @@ extern int disable_apic; #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> #else -#define apic_write native_apic_write -#define apic_read native_apic_read #define setup_boot_clock setup_boot_APIC_clock #define setup_secondary_clock setup_secondary_APIC_clock #endif extern int is_vsmp_box(void); +extern void xapic_wait_icr_idle(void); +extern u32 safe_xapic_wait_icr_idle(void); +extern u64 xapic_icr_read(void); +extern void xapic_icr_write(u32, u32); +extern int setup_profiling_timer(unsigned int); -static inline void native_apic_write(unsigned long reg, u32 v) +static inline void native_apic_mem_write(u32 reg, u32 v) { volatile u32 *addr = (volatile u32 *)(APIC_BASE + reg); @@ -64,21 +69,72 @@ static inline void native_apic_write(unsigned long reg, u32 v) ASM_OUTPUT2("0" (v), "m" (*addr))); } -static inline u32 native_apic_read(unsigned long reg) +static inline u32 native_apic_mem_read(u32 reg) { return *((volatile u32 *)(APIC_BASE + reg)); } -extern void apic_wait_icr_idle(void); -extern u32 safe_apic_wait_icr_idle(void); +static inline void native_apic_msr_write(u32 reg, u32 v) +{ + if (reg == APIC_DFR || reg == APIC_ID || reg == APIC_LDR || + reg == APIC_LVR) + return; + + wrmsr(APIC_BASE_MSR + (reg >> 4), v, 0); +} + +static inline u32 native_apic_msr_read(u32 reg) +{ + u32 low, high; + + if (reg == APIC_DFR) + return -1; + + rdmsr(APIC_BASE_MSR + (reg >> 4), low, high); + return low; +} + +#ifndef CONFIG_X86_32 +extern int x2apic, x2apic_preenabled; +extern void check_x2apic(void); +extern void enable_x2apic(void); +extern void enable_IR_x2apic(void); +extern void x2apic_icr_write(u32 low, u32 id); +#endif + +struct apic_ops { + u32 (*read)(u32 reg); + void (*write)(u32 reg, u32 v); + u64 (*icr_read)(void); + void (*icr_write)(u32 low, u32 high); + void (*wait_icr_idle)(void); + u32 (*safe_wait_icr_idle)(void); +}; + +extern struct apic_ops *apic_ops; + +#define apic_read (apic_ops->read) +#define apic_write (apic_ops->write) +#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) +#define safe_apic_wait_icr_idle (apic_ops->safe_wait_icr_idle) + extern int get_physical_broadcast(void); +#ifdef CONFIG_X86_64 +static inline void ack_x2APIC_irq(void) +{ + /* Docs say use 0 for future compatibility */ + native_apic_msr_write(APIC_EOI, 0); +} +#endif + + static inline void ack_APIC_irq(void) { /* - * ack_APIC_irq() actually gets compiled as a single instruction: - * - a single rmw on Pentium/82489DX - * - a single write on P6+ cores (CONFIG_X86_GOOD_APIC) + * ack_APIC_irq() actually gets compiled as a single instruction * ... yummie. */ @@ -128,4 +184,4 @@ static inline void init_apic_mappings(void) { } #endif /* !CONFIG_X86_LOCAL_APIC */ -#endif /* __ASM_APIC_H */ +#endif /* ASM_X86__APIC_H */ |