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authorVincent Hanquez <vincent.hanquez@cl.cam.ac.uk>2005-06-23 00:08:43 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-23 09:45:13 -0700
commit1cc6f12e03ebc064b74161c684f987284ce9d0cc (patch)
treefd22e53fa49ea211914ee12fb45df6c4a2d01ee3 /arch/i386
parentf5012310e35bd62fd39fce338ee44422c975ff3c (diff)
[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>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/kernel/cpu/common.c2
-rw-r--r--arch/i386/kernel/process.c12
-rw-r--r--arch/i386/kernel/signal.c2
-rw-r--r--arch/i386/kernel/traps.c6
-rw-r--r--arch/i386/power/cpu.c14
5 files changed, 17 insertions, 19 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index d199e525680..b9954248d0a 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -635,7 +635,7 @@ void __init cpu_init (void)
/* 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);
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 3c3f245cca5..2468ab70c38 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -633,13 +633,13 @@ struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct tas
* 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))
diff --git a/arch/i386/kernel/signal.c b/arch/i386/kernel/signal.c
index 344400787c3..839d4dc88cd 100644
--- a/arch/i386/kernel/signal.c
+++ b/arch/i386/kernel/signal.c
@@ -624,7 +624,7 @@ int fastcall do_signal(struct pt_regs *regs, sigset_t *oldset)
* 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. */
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 7f729665d29..c01d7ba6d7e 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -685,7 +685,7 @@ fastcall void do_debug(struct pt_regs * regs, long error_code)
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 @@ fastcall void do_debug(struct pt_regs * regs, long error_code)
* the signal is delivered.
*/
clear_dr7:
- __asm__("movl %0,%%db7"
- : /* no output */
- : "r" (0));
+ set_debugreg(0, 7);
return;
debug_vm86:
diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c
index cf337c673d9..6f521cf19a1 100644
--- a/arch/i386/power/cpu.c
+++ b/arch/i386/power/cpu.c
@@ -94,13 +94,13 @@ static void fix_processor_context(void)
* 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);
}
}