diff options
Diffstat (limited to 'include/asm-x86')
| -rw-r--r-- | include/asm-x86/boot.h | 2 | ||||
| -rw-r--r-- | include/asm-x86/desc.h | 15 | ||||
| -rw-r--r-- | include/asm-x86/microcode.h | 47 | ||||
| -rw-r--r-- | include/asm-x86/mmzone_64.h | 3 | ||||
| -rw-r--r-- | include/asm-x86/page_32.h | 5 | ||||
| -rw-r--r-- | include/asm-x86/paravirt.h | 20 | ||||
| -rw-r--r-- | include/asm-x86/processor.h | 35 | ||||
| -rw-r--r-- | include/asm-x86/ptrace.h | 6 | ||||
| -rw-r--r-- | include/asm-x86/smp.h | 34 | ||||
| -rw-r--r-- | include/asm-x86/spinlock.h | 67 | ||||
| -rw-r--r-- | include/asm-x86/tlbflush.h | 10 | ||||
| -rw-r--r-- | include/asm-x86/traps.h | 12 | ||||
| -rw-r--r-- | include/asm-x86/xen/hypervisor.h | 14 |
13 files changed, 181 insertions, 89 deletions
diff --git a/include/asm-x86/boot.h b/include/asm-x86/boot.h index 825de5dc867c..1d63bd5d5946 100644 --- a/include/asm-x86/boot.h +++ b/include/asm-x86/boot.h @@ -2,9 +2,7 @@ #define ASM_X86__BOOT_H /* Don't touch these, unless you really know what you're doing. */ -#define DEF_INITSEG 0x9000 #define DEF_SYSSEG 0x1000 -#define DEF_SETUPSEG 0x9020 #define DEF_SYSSIZE 0x7F00 /* Internal svga startup constants */ diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h index b73fea54def2..ebc307817e98 100644 --- a/include/asm-x86/desc.h +++ b/include/asm-x86/desc.h @@ -24,6 +24,11 @@ static inline void fill_ldt(struct desc_struct *desc, desc->d = info->seg_32bit; desc->g = info->limit_in_pages; desc->base2 = (info->base_addr & 0xff000000) >> 24; + /* + * Don't allow setting of the lm bit. It is useless anyway + * because 64bit system calls require __USER_CS: + */ + desc->l = 0; } extern struct desc_ptr idt_descr; @@ -97,7 +102,15 @@ static inline int desc_empty(const void *ptr) native_write_gdt_entry(dt, entry, desc, type) #define write_idt_entry(dt, entry, g) \ native_write_idt_entry(dt, entry, g) -#endif + +static inline void paravirt_alloc_ldt(struct desc_struct *ldt, unsigned entries) +{ +} + +static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries) +{ +} +#endif /* CONFIG_PARAVIRT */ static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate) diff --git a/include/asm-x86/microcode.h b/include/asm-x86/microcode.h new file mode 100644 index 000000000000..62c793bb70ca --- /dev/null +++ b/include/asm-x86/microcode.h @@ -0,0 +1,47 @@ +#ifndef ASM_X86__MICROCODE_H +#define ASM_X86__MICROCODE_H + +struct cpu_signature { + unsigned int sig; + unsigned int pf; + unsigned int rev; +}; + +struct device; + +struct microcode_ops { + int (*request_microcode_user) (int cpu, const void __user *buf, size_t size); + int (*request_microcode_fw) (int cpu, struct device *device); + + void (*apply_microcode) (int cpu); + + int (*collect_cpu_info) (int cpu, struct cpu_signature *csig); + void (*microcode_fini_cpu) (int cpu); +}; + +struct ucode_cpu_info { + struct cpu_signature cpu_sig; + int valid; + void *mc; +}; +extern struct ucode_cpu_info ucode_cpu_info[]; + +#ifdef CONFIG_MICROCODE_INTEL +extern struct microcode_ops * __init init_intel_microcode(void); +#else +static inline struct microcode_ops * __init init_intel_microcode(void) +{ + return NULL; +} +#endif /* CONFIG_MICROCODE_INTEL */ + +#ifdef CONFIG_MICROCODE_AMD +extern struct microcode_ops * __init init_amd_microcode(void); +#else +static inline struct microcode_ops * __init init_amd_microcode(void) +{ + return NULL; +} +#endif + +#endif /* ASM_X86__MICROCODE_H */ diff --git a/include/asm-x86/mmzone_64.h b/include/asm-x86/mmzone_64.h index 626b03a14875..6480f3333b2a 100644 --- a/include/asm-x86/mmzone_64.h +++ b/include/asm-x86/mmzone_64.h @@ -7,7 +7,7 @@ #ifdef CONFIG_NUMA -#define VIRTUAL_BUG_ON(x) +#include <linux/mmdebug.h> #include <asm/smp.h> @@ -29,7 +29,6 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr) { unsigned nid; VIRTUAL_BUG_ON(!memnodemap); - VIRTUAL_BUG_ON((addr >> memnode_shift) >= memnodemapsize); nid = memnodemap[addr >> memnode_shift]; VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]); return nid; diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h index 72f7305682c6..9c5a737a9af9 100644 --- a/include/asm-x86/page_32.h +++ b/include/asm-x86/page_32.h @@ -73,7 +73,12 @@ typedef struct page *pgtable_t; #endif #ifndef __ASSEMBLY__ +#define __phys_addr_const(x) ((x) - PAGE_OFFSET) +#ifdef CONFIG_DEBUG_VIRTUAL +extern unsigned long __phys_addr(unsigned long); +#else #define __phys_addr(x) ((x) - PAGE_OFFSET) +#endif #define __phys_reloc_hide(x) RELOC_HIDE((x), 0) #ifdef CONFIG_FLATMEM diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index d7d358a43996..8d6ae2f760d0 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -124,6 +124,9 @@ struct pv_cpu_ops { int entrynum, const void *desc, int size); void (*write_idt_entry)(gate_desc *, int entrynum, const gate_desc *gate); + void (*alloc_ldt)(struct desc_struct *ldt, unsigned entries); + void (*free_ldt)(struct desc_struct *ldt, unsigned entries); + void (*load_sp0)(struct tss_struct *tss, struct thread_struct *t); void (*set_iopl_mask)(unsigned mask); @@ -325,6 +328,7 @@ struct pv_lock_ops { int (*spin_is_locked)(struct raw_spinlock *lock); int (*spin_is_contended)(struct raw_spinlock *lock); void (*spin_lock)(struct raw_spinlock *lock); + void (*spin_lock_flags)(struct raw_spinlock *lock, unsigned long flags); int (*spin_trylock)(struct raw_spinlock *lock); void (*spin_unlock)(struct raw_spinlock *lock); }; @@ -830,6 +834,16 @@ do { \ (aux) = __aux; \ } while (0) +static inline void paravirt_alloc_ldt(struct desc_struct *ldt, unsigned entries) +{ + PVOP_VCALL2(pv_cpu_ops.alloc_ldt, ldt, entries); +} + +static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries) +{ + PVOP_VCALL2(pv_cpu_ops.free_ldt, ldt, entries); +} + static inline void load_TR_desc(void) { PVOP_VCALL0(pv_cpu_ops.load_tr_desc); @@ -1394,6 +1408,12 @@ static __always_inline void __raw_spin_lock(struct raw_spinlock *lock) PVOP_VCALL1(pv_lock_ops.spin_lock, lock); } +static __always_inline void __raw_spin_lock_flags(struct raw_spinlock *lock, + unsigned long flags) +{ + PVOP_VCALL2(pv_lock_ops.spin_lock_flags, lock, flags); +} + static __always_inline int __raw_spin_trylock(struct raw_spinlock *lock) { return PVOP_CALL1(int, pv_lock_ops.spin_trylock, lock); diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h index c7d35464a4bb..ee7cbb30773a 100644 --- a/include/asm-x86/processor.h +++ b/include/asm-x86/processor.h @@ -586,41 +586,6 @@ static inline void clear_in_cr4(unsigned long mask) write_cr4(cr4); } -struct microcode_header { - unsigned int hdrver; - unsigned int rev; - unsigned int date; - unsigned int sig; - unsigned int cksum; - unsigned int ldrver; - unsigned int pf; - unsigned int datasize; - unsigned int totalsize; - unsigned int reserved[3]; -}; - -struct microcode { - struct microcode_header hdr; - unsigned int bits[0]; -}; - -typedef struct microcode microcode_t; -typedef struct microcode_header microcode_header_t; - -/* microcode format is extended from prescott processors */ -struct extended_signature { - unsigned int sig; - unsigned int pf; - unsigned int cksum; -}; - -struct extended_sigtable { - unsigned int count; - unsigned int cksum; - unsigned int reserved[3]; - struct extended_signature sigs[0]; -}; - typedef struct { unsigned long seg; } mm_segment_t; diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h index d64a61097165..ac578f11c1c5 100644 --- a/include/asm-x86/ptrace.h +++ b/include/asm-x86/ptrace.h @@ -177,11 +177,11 @@ convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs); #ifdef CONFIG_X86_32 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, - int error_code); -#else -void signal_fault(struct pt_regs *regs, void __user *frame, char *where); + int error_code, int si_code); #endif +void signal_fault(struct pt_regs *regs, void __user *frame, char *where); + extern long syscall_trace_enter(struct pt_regs *); extern void syscall_trace_leave(struct pt_regs *); diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h index 29324c103341..6df2615f9138 100644 --- a/include/asm-x86/smp.h +++ b/include/asm-x86/smp.h @@ -50,12 +50,16 @@ extern struct { struct smp_ops { void (*smp_prepare_boot_cpu)(void); void (*smp_prepare_cpus)(unsigned max_cpus); - int (*cpu_up)(unsigned cpu); void (*smp_cpus_done)(unsigned max_cpus); void (*smp_send_stop)(void); void (*smp_send_reschedule)(int cpu); + int (*cpu_up)(unsigned cpu); + int (*cpu_disable)(void); + void (*cpu_die)(unsigned int cpu); + void (*play_dead)(void); + void (*send_call_func_ipi)(cpumask_t mask); void (*send_call_func_single_ipi)(int cpu); }; @@ -94,6 +98,21 @@ static inline int __cpu_up(unsigned int cpu) return smp_ops.cpu_up(cpu); } +static inline int __cpu_disable(void) +{ + return smp_ops.cpu_disable(); +} + +static inline void __cpu_die(unsigned int cpu) +{ + smp_ops.cpu_die(cpu); +} + +static inline void play_dead(void) +{ + smp_ops.play_dead(); +} + static inline void smp_send_reschedule(int cpu) { smp_ops.smp_send_reschedule(cpu); @@ -109,16 +128,19 @@ static inline void arch_send_call_function_ipi(cpumask_t mask) smp_ops.send_call_func_ipi(mask); } +void cpu_disable_common(void); void native_smp_prepare_boot_cpu(void); void native_smp_prepare_cpus(unsigned int max_cpus); void native_smp_cpus_done(unsigned int max_cpus); int native_cpu_up(unsigned int cpunum); +int native_cpu_disable(void); +void native_cpu_die(unsigned int cpu); +void native_play_dead(void); +void play_dead_common(void); + void native_send_call_func_ipi(cpumask_t mask); void native_send_call_func_single_ipi(int cpu); -extern int __cpu_disable(void); -extern void __cpu_die(unsigned int cpu); - void smp_store_cpu_info(int id); #define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu) @@ -205,9 +227,5 @@ static inline int hard_smp_processor_id(void) #endif /* CONFIG_X86_LOCAL_APIC */ -#ifdef CONFIG_HOTPLUG_CPU -extern void cpu_uninit(void); -#endif - #endif /* __ASSEMBLY__ */ #endif /* ASM_X86__SMP_H */ diff --git a/include/asm-x86/spinlock.h b/include/asm-x86/spinlock.h index 93adae338ac6..157ff7fab97a 100644 --- a/include/asm-x86/spinlock.h +++ b/include/asm-x86/spinlock.h @@ -21,8 +21,10 @@ #ifdef CONFIG_X86_32 # define LOCK_PTR_REG "a" +# define REG_PTR_MODE "k" #else # define LOCK_PTR_REG "D" +# define REG_PTR_MODE "q" #endif #if defined(CONFIG_X86_32) && \ @@ -54,19 +56,7 @@ * much between them in performance though, especially as locks are out of line. */ #if (NR_CPUS < 256) -static inline int __ticket_spin_is_locked(raw_spinlock_t *lock) -{ - int tmp = ACCESS_ONCE(lock->slock); - - return (((tmp >> 8) & 0xff) != (tmp & 0xff)); -} - -static inline int __ticket_spin_is_contended(raw_spinlock_t *lock) -{ - int tmp = ACCESS_ONCE(lock->slock); - - return (((tmp >> 8) - tmp) & 0xff) > 1; -} +#define TICKET_SHIFT 8 static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock) { @@ -89,19 +79,17 @@ static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock) static __always_inline int __ticket_spin_trylock(raw_spinlock_t *lock) { - int tmp; - short new; + int tmp, new; - asm volatile("movw %2,%w0\n\t" + asm volatile("movzwl %2, %0\n\t" "cmpb %h0,%b0\n\t" + "leal 0x100(%" REG_PTR_MODE "0), %1\n\t" "jne 1f\n\t" - "movw %w0,%w1\n\t" - "incb %h1\n\t" LOCK_PREFIX "cmpxchgw %w1,%2\n\t" "1:" "sete %b1\n\t" "movzbl %b1,%0\n\t" - : "=&a" (tmp), "=Q" (new), "+m" (lock->slock) + : "=&a" (tmp), "=&q" (new), "+m" (lock->slock) : : "memory", "cc"); @@ -116,19 +104,7 @@ static __always_inline void __ticket_spin_unlock(raw_spinlock_t *lock) : "memory", "cc"); } #else -static inline int __ticket_spin_is_locked(raw_spinlock_t *lock) -{ - int tmp = ACCESS_ONCE(lock->slock); - - return (((tmp >> 16) & 0xffff) != (tmp & 0xffff)); -} - -static inline int __ticket_spin_is_contended(raw_spinlock_t *lock) -{ - int tmp = ACCESS_ONCE(lock->slock); - - return (((tmp >> 16) - tmp) & 0xffff) > 1; -} +#define TICKET_SHIFT 16 static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock) { @@ -146,7 +122,7 @@ static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock) /* don't need lfence here, because loads are in-order */ "jmp 1b\n" "2:" - : "+Q" (inc), "+m" (lock->slock), "=r" (tmp) + : "+r" (inc), "+m" (lock->slock), "=&r" (tmp) : : "memory", "cc"); } @@ -160,13 +136,13 @@ static __always_inline int __ticket_spin_trylock(raw_spinlock_t *lock) "movl %0,%1\n\t" "roll $16, %0\n\t" "cmpl %0,%1\n\t" + "leal 0x00010000(%" REG_PTR_MODE "0), %1\n\t" "jne 1f\n\t" - "addl $0x00010000, %1\n\t" LOCK_PREFIX "cmpxchgl %1,%2\n\t" "1:" "sete %b1\n\t" "movzbl %b1,%0\n\t" - : "=&a" (tmp), "=r" (new), "+m" (lock->slock) + : "=&a" (tmp), "=&q" (new), "+m" (lock->slock) : : "memory", "cc"); @@ -182,7 +158,19 @@ static __always_inline void __ticket_spin_unlock(raw_spinlock_t *lock) } #endif -#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) +static inline int __ticket_spin_is_locked(raw_spinlock_t *lock) +{ + int tmp = ACCESS_ONCE(lock->slock); + + return !!(((tmp >> TICKET_SHIFT) ^ tmp) & ((1 << TICKET_SHIFT) - 1)); +} + +static inline int __ticket_spin_is_contended(raw_spinlock_t *lock) +{ + int tmp = ACCESS_ONCE(lock->slock); + + return (((tmp >> TICKET_SHIFT) - tmp) & ((1 << TICKET_SHIFT) - 1)) > 1; +} #ifdef CONFIG_PARAVIRT /* @@ -272,6 +260,13 @@ static __always_inline void __raw_spin_unlock(raw_spinlock_t *lock) { __ticket_spin_unlock(lock); } + +static __always_inline void __raw_spin_lock_flags(raw_spinlock_t *lock, + unsigned long flags) +{ + __raw_spin_lock(lock); +} + #endif /* CONFIG_PARAVIRT */ static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock) diff --git a/include/asm-x86/tlbflush.h b/include/asm-x86/tlbflush.h index ef68b76dc3c5..3cdd08b5bdb7 100644 --- a/include/asm-x86/tlbflush.h +++ b/include/asm-x86/tlbflush.h @@ -119,6 +119,10 @@ static inline void native_flush_tlb_others(const cpumask_t *cpumask, { } +static inline void reset_lazy_tlbstate(void) +{ +} + #else /* SMP */ #include <asm/smp.h> @@ -151,6 +155,12 @@ struct tlb_state { char __cacheline_padding[L1_CACHE_BYTES-8]; }; DECLARE_PER_CPU(struct tlb_state, cpu_tlbstate); + +void reset_lazy_tlbstate(void); +#else +static inline void reset_lazy_tlbstate(void) +{ +} #endif #endif /* SMP */ diff --git a/include/asm-x86/traps.h b/include/asm-x86/traps.h index 2ccebc6fb0b0..7a692baa51ae 100644 --- a/include/asm-x86/traps.h +++ b/include/asm-x86/traps.h @@ -1,6 +1,8 @@ #ifndef ASM_X86__TRAPS_H #define ASM_X86__TRAPS_H +#include <asm/debugreg.h> + /* Common in X86_32 and X86_64 */ asmlinkage void divide_error(void); asmlinkage void debug(void); @@ -36,6 +38,16 @@ void do_invalid_op(struct pt_regs *, long); void do_general_protection(struct pt_regs *, long); void do_nmi(struct pt_regs *, long); +static inline int get_si_code(unsigned long condition) +{ + if (condition & DR_STEP) + return TRAP_TRACE; + else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)) + return TRAP_HWBKPT; + else + return TRAP_BRKPT; +} + extern int panic_on_unrecovered_nmi; extern int kstack_depth_to_print; diff --git a/include/asm-x86/xen/hypervisor.h b/include/asm-x86/xen/hypervisor.h index 0ef3a88b869d..445a24759560 100644 --- a/include/asm-x86/xen/hypervisor.h +++ b/include/asm-x86/xen/hypervisor.h @@ -54,7 +54,6 @@ /* arch/i386/kernel/setup.c */ extern struct shared_info *HYPERVISOR_shared_info; extern struct start_info *xen_start_info; -#define is_initial_xendomain() (xen_start_info->flags & SIF_INITDOMAIN) /* arch/i386/mach-xen/evtchn.c */ /* Force a proper event-channel callback from Xen. */ @@ -67,6 +66,17 @@ u64 jiffies_to_st(unsigned long jiffies); #define MULTI_UVMFLAGS_INDEX 3 #define MULTI_UVMDOMID_INDEX 4 -#define is_running_on_xen() (xen_start_info ? 1 : 0) +enum xen_domain_type { + XEN_NATIVE, + XEN_PV_DOMAIN, + XEN_HVM_DOMAIN, +}; + +extern enum xen_domain_type xen_domain_type; + +#define xen_domain() (xen_domain_type != XEN_NATIVE) +#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN) +#define xen_initial_domain() (xen_pv_domain() && xen_start_info->flags & SIF_INITDOMAIN) +#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN) #endif /* ASM_X86__XEN__HYPERVISOR_H */ |