From a48212cb65e09669ed243581556529681cebba0a Mon Sep 17 00:00:00 2001
From: "iap10@labyrinth.cl.cam.ac.uk" <iap10@labyrinth.cl.cam.ac.uk>
Date: Mon, 24 Feb 2003 16:55:07 +0000
Subject: bitkeeper revision 1.93 (3e5a4e6bkPheUp3x1uufN2MS3LAB7A)

Latest and Greatest version of XenoLinux based on the Linux-2.4.21-pre4
kernel.
---
 .../include/asm-xeno/apic.h                        | 99 ++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 xenolinux-2.4.21-pre4-sparse/include/asm-xeno/apic.h

(limited to 'xenolinux-2.4.21-pre4-sparse/include/asm-xeno/apic.h')

diff --git a/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/apic.h b/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/apic.h
new file mode 100644
index 0000000000..89921f9d78
--- /dev/null
+++ b/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/apic.h
@@ -0,0 +1,99 @@
+#ifndef __ASM_APIC_H
+#define __ASM_APIC_H
+
+#include <linux/config.h>
+#include <linux/pm.h>
+#include <asm/apicdef.h>
+#include <asm/system.h>
+
+#ifdef CONFIG_X86_LOCAL_APIC
+
+#define APIC_DEBUG 0
+
+#if APIC_DEBUG
+#define Dprintk(x...) printk(x)
+#else
+#define Dprintk(x...)
+#endif
+
+/*
+ * Basic functions accessing APICs.
+ */
+
+static __inline void apic_write(unsigned long reg, unsigned long v)
+{
+	*((volatile unsigned long *)(APIC_BASE+reg)) = v;
+}
+
+static __inline void apic_write_atomic(unsigned long reg, unsigned long v)
+{
+	xchg((volatile unsigned long *)(APIC_BASE+reg), v);
+}
+
+static __inline unsigned long apic_read(unsigned long reg)
+{
+	return *((volatile unsigned long *)(APIC_BASE+reg));
+}
+
+static __inline__ void apic_wait_icr_idle(void)
+{
+	do { } while ( apic_read( APIC_ICR ) & APIC_ICR_BUSY );
+}
+
+#ifdef CONFIG_X86_GOOD_APIC
+# define FORCE_READ_AROUND_WRITE 0
+# define apic_read_around(x)
+# define apic_write_around(x,y) apic_write((x),(y))
+#else
+# define FORCE_READ_AROUND_WRITE 1
+# define apic_read_around(x) apic_read(x)
+# define apic_write_around(x,y) apic_write_atomic((x),(y))
+#endif
+
+static inline void ack_APIC_irq(void)
+{
+	/*
+	 * ack_APIC_irq() actually gets compiled as a single instruction:
+	 * - a single rmw on Pentium/82489DX
+	 * - a single write on P6+ cores (CONFIG_X86_GOOD_APIC)
+	 * ... yummie.
+	 */
+
+	/* Docs say use 0 for future compatibility */
+	apic_write_around(APIC_EOI, 0);
+}
+
+extern int get_maxlvt(void);
+extern void clear_local_APIC(void);
+extern void connect_bsp_APIC (void);
+extern void disconnect_bsp_APIC (void);
+extern void disable_local_APIC (void);
+extern int verify_local_APIC (void);
+extern void cache_APIC_registers (void);
+extern void sync_Arb_IDs (void);
+extern void init_bsp_APIC (void);
+extern void setup_local_APIC (void);
+extern void init_apic_mappings (void);
+extern void smp_local_timer_interrupt (struct pt_regs * regs);
+extern void setup_APIC_clocks (void);
+extern void setup_apic_nmi_watchdog (void);
+extern inline void nmi_watchdog_tick (struct pt_regs * regs);
+extern int APIC_init_uniprocessor (void);
+extern void disable_APIC_timer(void);
+extern void enable_APIC_timer(void);
+
+extern struct pm_dev *apic_pm_register(pm_dev_t, unsigned long, pm_callback);
+extern void apic_pm_unregister(struct pm_dev*);
+
+extern unsigned int apic_timer_irqs [NR_CPUS];
+extern int check_nmi_watchdog (void);
+
+extern unsigned int nmi_watchdog;
+#define NMI_NONE	0
+#define NMI_IO_APIC	1
+#define NMI_LOCAL_APIC	2
+#define NMI_INVALID	3
+
+#endif /* CONFIG_X86_LOCAL_APIC */
+
+#endif /* __ASM_APIC_H */
-- 
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