x86: relocate get/set debugreg fcns to include/asm/debugreg.

Since we already have a debugreg.h header file, move the
assoc. get/set functions to it.  In addition to it being the
logical home for them, it has a secondary advantage.  The
functions that are moved use BUG().  So we really need to
have linux/bug.h in scope.  But asm/processor.h is used about
600 times, vs. only about 15 for debugreg.h -- so adding bug.h
to the latter reduces the amount of time we'll be processing
it during a compile.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: "H. Peter Anvin" <hpa@zytor.com>

1 files changed, 0 insertions, 63 deletions

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 58545c97d071..30aa6e95f814 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -474,61 +474,6 @@ struct thread_struct {
         unsigned                io_bitmap_max;
 };
 
-static inline unsigned long native_get_debugreg(int regno)
-{
-        unsigned long val = 0;  /* Damn you, gcc! */
-
-        switch (regno) {
-        case 0:
-                asm("mov %%db0, %0" :"=r" (val));
-                break;
-        case 1:
-                asm("mov %%db1, %0" :"=r" (val));
-                break;
-        case 2:
-                asm("mov %%db2, %0" :"=r" (val));
-                break;
-        case 3:
-                asm("mov %%db3, %0" :"=r" (val));
-                break;
-        case 6:
-                asm("mov %%db6, %0" :"=r" (val));
-                break;
-        case 7:
-                asm("mov %%db7, %0" :"=r" (val));
-                break;
-        default:
-                BUG();
-        }
-        return val;
-}
-
-static inline void native_set_debugreg(int regno, unsigned long value)
-{
-        switch (regno) {
-        case 0:
-                asm("mov %0, %%db0"     ::"r" (value));
-                break;
-        case 1:
-                asm("mov %0, %%db1"     ::"r" (value));
-                break;
-        case 2:
-                asm("mov %0, %%db2"     ::"r" (value));
-                break;
-        case 3:
-                asm("mov %0, %%db3"     ::"r" (value));
-                break;
-        case 6:
-                asm("mov %0, %%db6"     ::"r" (value));
-                break;
-        case 7:
-                asm("mov %0, %%db7"     ::"r" (value));
-                break;
-        default:
-                BUG();
-        }
-}
-
 /*
  * Set IOPL bits in EFLAGS from given mask
  */
@@ -574,14 +519,6 @@ static inline void native_swapgs(void)
 #define __cpuid                 native_cpuid
 #define paravirt_enabled()      0
 
-/*
- * These special macros can be used to get or set a debugging register
- */
-#define get_debugreg(var, register)                             \
-        (var) = native_get_debugreg(register)
-#define set_debugreg(value, register)                           \
-        native_set_debugreg(register, value)
-
 static inline void load_sp0(struct tss_struct *tss,
                             struct thread_struct *thread)
 {