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-rw-r--r--include/asm-x86_64/atomic.h21
-rw-r--r--include/asm-x86_64/desc.h13
-rw-r--r--include/asm-x86_64/elf.h2
-rw-r--r--include/asm-x86_64/kprobes.h19
-rw-r--r--include/asm-x86_64/msi.h4
-rw-r--r--include/asm-x86_64/pgtable.h2
-rw-r--r--include/asm-x86_64/smp.h6
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