commit 1cc6f12e03ebc064b74161c684f987284ce9d0cc
author Vincent Hanquez <vincent.hanquez@cl.cam.ac.uk> Thu Jun 23 00:08:43 2005 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> Thu Jun 23 09:45:13 2005 -0700
tree fd22e53fa49ea211914ee12fb45df6c4a2d01ee3
parent f5012310e35bd62fd39fce338ee44422c975ff3c

[PATCH] xen: x86: Use new macro for debugreg

Make use of the 2 new macro set_debugreg and get_debugreg.

Signed-off-by: Vincent Hanquez <vincent.hanquez@cl.cam.ac.uk>
Cc: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/i386/kernel/cpu/common.c

diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index d199e52..b995424 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -635,7 +635,7 @@
 
 	/* Clear all 6 debug registers: */
 
-#define CD(register) __asm__("movl %0,%%db" #register ::"r"(0) );
+#define CD(register) set_debugreg(0, register)
 
 	CD(0); CD(1); CD(2); CD(3); /* no db4 and db5 */; CD(6); CD(7);
 

arch/i386/kernel/process.c

diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 3c3f245..2468ab7 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -633,13 +633,13 @@
 	 * Now maybe reload the debug registers
 	 */
 	if (unlikely(next->debugreg[7])) {
-		loaddebug(next, 0);
-		loaddebug(next, 1);
-		loaddebug(next, 2);
-		loaddebug(next, 3);
+		set_debugreg(current->thread.debugreg[0], 0);
+		set_debugreg(current->thread.debugreg[1], 1);
+		set_debugreg(current->thread.debugreg[2], 2);
+		set_debugreg(current->thread.debugreg[3], 3);
 		/* no 4 and 5 */
-		loaddebug(next, 6);
-		loaddebug(next, 7);
+		set_debugreg(current->thread.debugreg[6], 6);
+		set_debugreg(current->thread.debugreg[7], 7);
 	}
 
 	if (unlikely(prev->io_bitmap_ptr || next->io_bitmap_ptr))

arch/i386/kernel/signal.c

diff --git a/arch/i386/kernel/signal.c b/arch/i386/kernel/signal.c
index 3444007..839d4dc 100644
--- a/arch/i386/kernel/signal.c
+++ b/arch/i386/kernel/signal.c
@@ -624,7 +624,7 @@
 		 * inside the kernel.
 		 */
 		if (unlikely(current->thread.debugreg[7])) {
-			loaddebug(&current->thread, 7);
+			set_debugreg(current->thread.debugreg[7], 7);
 		}
 
 		/* Whee!  Actually deliver the signal.  */

arch/i386/kernel/traps.c

diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 7f72966..c01d7ba 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -685,7 +685,7 @@
 	unsigned int condition;
 	struct task_struct *tsk = current;
 
-	__asm__ __volatile__("movl %%db6,%0" : "=r" (condition));
+	get_debugreg(condition, 6);
 
 	if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code,
 					SIGTRAP) == NOTIFY_STOP)
@@ -727,9 +727,7 @@
 	 * the signal is delivered.
 	 */
 clear_dr7:
-	__asm__("movl %0,%%db7"
-		: /* no output */
-		: "r" (0));
+	set_debugreg(0, 7);
 	return;
 
 debug_vm86:

arch/i386/power/cpu.c

diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c
index cf337c6..6f521cf 100644
--- a/arch/i386/power/cpu.c
+++ b/arch/i386/power/cpu.c
@@ -94,13 +94,13 @@
 	 * Now maybe reload the debug registers
 	 */
 	if (current->thread.debugreg[7]){
-                loaddebug(&current->thread, 0);
-                loaddebug(&current->thread, 1);
-                loaddebug(&current->thread, 2);
-                loaddebug(&current->thread, 3);
-                /* no 4 and 5 */
-                loaddebug(&current->thread, 6);
-                loaddebug(&current->thread, 7);
+		set_debugreg(current->thread.debugreg[0], 0);
+		set_debugreg(current->thread.debugreg[1], 1);
+		set_debugreg(current->thread.debugreg[2], 2);
+		set_debugreg(current->thread.debugreg[3], 3);
+		/* no 4 and 5 */
+		set_debugreg(current->thread.debugreg[6], 6);
+		set_debugreg(current->thread.debugreg[7], 7);
 	}
 
 }