From a1d66c30fc146b7a4eb013fbe6aacc1e5153d843 Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Thu, 1 Sep 2011 02:06:40 +0200
Subject: Fix PC sampling

interrupt.S now saves the IRQ on the stack to acknowledge it later.

* i386/i386/hardclock.c (hardclock): Add irq parameter.
* i386/i386at/kd.c (kdintr, kdcheckmagic): Remove regs parameter.
* i386/i386at/kd.h (kdintr): Likewise.
---
 i386/i386/hardclock.c | 3 ++-
 i386/i386at/kd.c      | 8 +++-----
 i386/i386at/kd.h      | 2 +-
 3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/i386/i386/hardclock.c b/i386/i386/hardclock.c
index aecd3a3..6615033 100644
--- a/i386/i386/hardclock.c
+++ b/i386/i386/hardclock.c
@@ -46,9 +46,10 @@
 extern char	return_to_iret[];
 
 void
-hardclock(iunit,        old_ipl, ret_addr, regs)
+hardclock(iunit,        old_ipl, irq, ret_addr, regs)
         int     iunit;          /* 'unit' number */
 	int	old_ipl;	/* old interrupt level */
+	int	irq;		/* irq number */
 	char *	ret_addr;	/* return address in interrupt handler */
 	struct i386_interrupt_state *regs;
 				/* saved registers */
diff --git a/i386/i386at/kd.c b/i386/i386at/kd.c
index bd10b5f..4b70c5f 100644
--- a/i386/i386at/kd.c
+++ b/i386/i386at/kd.c
@@ -732,9 +732,8 @@ int	flags;				/* flags set for console */
  */
 /*ARGSUSED*/
 void
-kdintr(vec, regs)
+kdintr(vec)
 int	vec;
-int	regs;
 {
 	struct	tty	*tp;
 	unsigned char	c;
@@ -799,7 +798,7 @@ int	regs;
 		goto done;
 	} else if (kd_kbd_mouse && kd_kbd_magic(scancode)) {
 		goto done;
-	} else if (kdcheckmagic(scancode, &regs)) {
+	} else if (kdcheckmagic(scancode)) {
 		goto done;
 	} else if (kb_mode == KB_EVENT) {
 		kd_enqsc(scancode);
@@ -985,9 +984,8 @@ boolean_t	up;
  *		are still held down.
  */
 boolean_t
-kdcheckmagic(scancode, regs)
+kdcheckmagic(scancode)
 Scancode	scancode;
-int		*regs;
 {
 	static int magic_state = KS_NORMAL; /* like kd_state */
 	boolean_t up = FALSE;
diff --git a/i386/i386at/kd.h b/i386/i386at/kd.h
index 3f0dfe1..1d53538 100644
--- a/i386/i386at/kd.h
+++ b/i386/i386at/kd.h
@@ -740,6 +740,6 @@ extern void kd_slmwd (void *start, int count, int value);
 extern void kd_slmscu (void *from, void *to, int count);
 extern void kd_slmscd (void *from, void *to, int count);
 
-extern void kdintr(int vec, int regs);
+extern void kdintr(int vec);
 
 #endif	/* _KD_H_ */
-- 
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