---

yaml --- r: 53893 b: refs/heads/master c: f2b218d h: refs/heads/master i: 53891: 826ee57 v: v3
git-mirror · May 2, 2007 · f99e00d · f99e00d
1 parent 4f4af79
commit f99e00d
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Showing 3 changed files with 26 additions and 7 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: de938c51d5fec4ae03af64b06beb15d4423ec611
+refs/heads/master: f2b218dd6199983b120a96bc6531c1b81f4090d8
diff --git a/trunk/arch/i386/kernel/apic.c b/trunk/arch/i386/kernel/apic.c
@@ -129,6 +129,28 @@ static int modern_apic(void)
 	return lapic_get_version() >= 0x14;
 }
 
+void apic_wait_icr_idle(void)
+{
+	while (apic_read(APIC_ICR) & APIC_ICR_BUSY)
+		cpu_relax();
+}
+
+unsigned long safe_apic_wait_icr_idle(void)
+{
+	unsigned long send_status;
+	int timeout;
+
+	timeout = 0;
+	do {
+		send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY;
+		if (!send_status)
+			break;
+		udelay(100);
+	} while (timeout++ < 1000);
+
+	return send_status;
+}
+
 /**
  * enable_NMI_through_LVT0 - enable NMI through local vector table 0
  */

diff --git a/trunk/include/asm-i386/apic.h b/trunk/include/asm-i386/apic.h
@@ -2,6 +2,7 @@
 #define __ASM_APIC_H
 
 #include <linux/pm.h>
+#include <linux/delay.h>
 #include <asm/fixmap.h>
 #include <asm/apicdef.h>
 #include <asm/processor.h>
@@ -64,12 +65,8 @@ static __inline fastcall unsigned long native_apic_read(unsigned long reg)
 	return *((volatile unsigned long *)(APIC_BASE+reg));
 }
 
-static __inline__ void apic_wait_icr_idle(void)
-{
-	while ( apic_read( APIC_ICR ) & APIC_ICR_BUSY )
-		cpu_relax();
-}
-
+void apic_wait_icr_idle(void);
+unsigned long safe_apic_wait_icr_idle(void);
 int get_physical_broadcast(void);
 
 #ifdef CONFIG_X86_GOOD_APIC