diff options
Diffstat (limited to 'include/asm-x86_64')
-rw-r--r-- | include/asm-x86_64/atomic.h | 21 | ||||
-rw-r--r-- | include/asm-x86_64/desc.h | 13 | ||||
-rw-r--r-- | include/asm-x86_64/elf.h | 2 | ||||
-rw-r--r-- | include/asm-x86_64/kprobes.h | 19 | ||||
-rw-r--r-- | include/asm-x86_64/msi.h | 4 | ||||
-rw-r--r-- | include/asm-x86_64/pgtable.h | 2 | ||||
-rw-r--r-- | include/asm-x86_64/smp.h | 6 |
7 files changed, 61 insertions, 6 deletions
diff --git a/include/asm-x86_64/atomic.h b/include/asm-x86_64/atomic.h index fc4c5956e1e..0866ef67f19 100644 --- a/include/asm-x86_64/atomic.h +++ b/include/asm-x86_64/atomic.h @@ -360,6 +360,27 @@ static __inline__ int atomic_sub_return(int i, atomic_t *v) return atomic_add_return(-i,v); } +#define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old, new)) + +/** + * atomic_add_unless - add unless the number is a given value + * @v: pointer of type atomic_t + * @a: the amount to add to v... + * @u: ...unless v is equal to u. + * + * Atomically adds @a to @v, so long as it was not @u. + * Returns non-zero if @v was not @u, and zero otherwise. + */ +#define atomic_add_unless(v, a, u) \ +({ \ + int c, old; \ + c = atomic_read(v); \ + while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \ + c = old; \ + c != (u); \ +}) +#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) + #define atomic_inc_return(v) (atomic_add_return(1,v)) #define atomic_dec_return(v) (atomic_sub_return(1,v)) diff --git a/include/asm-x86_64/desc.h b/include/asm-x86_64/desc.h index 1a3d380f9d5..33764869387 100644 --- a/include/asm-x86_64/desc.h +++ b/include/asm-x86_64/desc.h @@ -132,9 +132,16 @@ static inline void set_tssldt_descriptor(void *ptr, unsigned long tss, unsigned static inline void set_tss_desc(unsigned cpu, void *addr) { - set_tssldt_descriptor(&cpu_gdt_table[cpu][GDT_ENTRY_TSS], (unsigned long)addr, - DESC_TSS, - sizeof(struct tss_struct) - 1); + /* + * sizeof(unsigned long) coming from an extra "long" at the end + * of the iobitmap. See tss_struct definition in processor.h + * + * -1? seg base+limit should be pointing to the address of the + * last valid byte + */ + set_tssldt_descriptor(&cpu_gdt_table[cpu][GDT_ENTRY_TSS], + (unsigned long)addr, DESC_TSS, + IO_BITMAP_OFFSET + IO_BITMAP_BYTES + sizeof(unsigned long) - 1); } static inline void set_ldt_desc(unsigned cpu, void *addr, int size) diff --git a/include/asm-x86_64/elf.h b/include/asm-x86_64/elf.h index a60a35e7922..43862cd6a56 100644 --- a/include/asm-x86_64/elf.h +++ b/include/asm-x86_64/elf.h @@ -149,6 +149,8 @@ extern void set_personality_64bit(void); */ #define elf_read_implies_exec(ex, executable_stack) (executable_stack != EXSTACK_DISABLE_X) +struct task_struct; + extern int dump_task_regs (struct task_struct *, elf_gregset_t *); extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *); diff --git a/include/asm-x86_64/kprobes.h b/include/asm-x86_64/kprobes.h index 6d6d883fdf6..4dd7a7e148d 100644 --- a/include/asm-x86_64/kprobes.h +++ b/include/asm-x86_64/kprobes.h @@ -25,6 +25,7 @@ */ #include <linux/types.h> #include <linux/ptrace.h> +#include <linux/percpu.h> struct pt_regs; @@ -48,6 +49,24 @@ struct arch_specific_insn { kprobe_opcode_t *insn; }; +struct prev_kprobe { + struct kprobe *kp; + unsigned long status; + unsigned long old_rflags; + unsigned long saved_rflags; +}; + +/* per-cpu kprobe control block */ +struct kprobe_ctlblk { + unsigned long kprobe_status; + unsigned long kprobe_old_rflags; + unsigned long kprobe_saved_rflags; + long *jprobe_saved_rsp; + struct pt_regs jprobe_saved_regs; + kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; + struct prev_kprobe prev_kprobe; +}; + /* trap3/1 are intr gates for kprobes. So, restore the status of IF, * if necessary, before executing the original int3/1 (trap) handler. */ diff --git a/include/asm-x86_64/msi.h b/include/asm-x86_64/msi.h index 85c427e472b..356e0e82f50 100644 --- a/include/asm-x86_64/msi.h +++ b/include/asm-x86_64/msi.h @@ -11,8 +11,6 @@ #include <asm/smp.h> #define LAST_DEVICE_VECTOR 232 -#define MSI_DEST_MODE MSI_LOGICAL_MODE -#define MSI_TARGET_CPU_SHIFT 12 -#define MSI_TARGET_CPU logical_smp_processor_id() +#define MSI_TARGET_CPU_SHIFT 12 #endif /* ASM_MSI_H */ diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index f8e87a57f3a..ecf58c7c165 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h @@ -106,6 +106,8 @@ static inline void pgd_clear (pgd_t * pgd) #define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte, 0)) +struct mm_struct; + static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long addr, pte_t *ptep, int full) { pte_t pte; diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h index cf8f969f902..d030409a8fb 100644 --- a/include/asm-x86_64/smp.h +++ b/include/asm-x86_64/smp.h @@ -136,5 +136,11 @@ static __inline int logical_smp_processor_id(void) } #endif +#ifdef CONFIG_SMP +#define cpu_physical_id(cpu) x86_cpu_to_apicid[cpu] +#else +#define cpu_physical_id(cpu) boot_cpu_id +#endif + #endif |