summaryrefslogtreecommitdiff
path: root/include/asm-x86/apic_32.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-x86/apic_32.h')
-rw-r--r--include/asm-x86/apic_32.h126
1 files changed, 126 insertions, 0 deletions
diff --git a/include/asm-x86/apic_32.h b/include/asm-x86/apic_32.h
new file mode 100644
index 000000000000..4091b33dcb10
--- /dev/null
+++ b/include/asm-x86/apic_32.h
@@ -0,0 +1,126 @@
+#ifndef __ASM_APIC_H
+#define __ASM_APIC_H
+
+#include <linux/pm.h>
+#include <linux/delay.h>
+#include <asm/fixmap.h>
+#include <asm/apicdef.h>
+#include <asm/processor.h>
+#include <asm/system.h>
+
+#define Dprintk(x...)
+
+/*
+ * Debugging macros
+ */
+#define APIC_QUIET 0
+#define APIC_VERBOSE 1
+#define APIC_DEBUG 2
+
+extern int apic_verbosity;
+
+/*
+ * Define the default level of output to be very little
+ * This can be turned up by using apic=verbose for more
+ * information and apic=debug for _lots_ of information.
+ * apic_verbosity is defined in apic.c
+ */
+#define apic_printk(v, s, a...) do { \
+ if ((v) <= apic_verbosity) \
+ printk(s, ##a); \
+ } while (0)
+
+
+extern void generic_apic_probe(void);
+
+#ifdef CONFIG_X86_LOCAL_APIC
+
+/*
+ * Basic functions accessing APICs.
+ */
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define apic_write native_apic_write
+#define apic_write_atomic native_apic_write_atomic
+#define apic_read native_apic_read
+#define setup_boot_clock setup_boot_APIC_clock
+#define setup_secondary_clock setup_secondary_APIC_clock
+#endif
+
+static __inline fastcall void native_apic_write(unsigned long reg,
+ unsigned long v)
+{
+ *((volatile unsigned long *)(APIC_BASE+reg)) = v;
+}
+
+static __inline fastcall void native_apic_write_atomic(unsigned long reg,
+ unsigned long v)
+{
+ xchg((volatile unsigned long *)(APIC_BASE+reg), v);
+}
+
+static __inline fastcall unsigned long native_apic_read(unsigned long reg)
+{
+ return *((volatile unsigned long *)(APIC_BASE+reg));
+}
+
+void apic_wait_icr_idle(void);
+unsigned long safe_apic_wait_icr_idle(void);
+int get_physical_broadcast(void);
+
+#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 lapic_get_maxlvt(void);
+extern void clear_local_APIC(void);
+extern void connect_bsp_APIC (void);
+extern void disconnect_bsp_APIC (int virt_wire_setup);
+extern void disable_local_APIC (void);
+extern void lapic_shutdown (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 (void);
+extern void setup_boot_APIC_clock (void);
+extern void setup_secondary_APIC_clock (void);
+extern int APIC_init_uniprocessor (void);
+
+extern void enable_NMI_through_LVT0 (void * dummy);
+
+#define ARCH_APICTIMER_STOPS_ON_C3 1
+
+extern int timer_over_8254;
+extern int local_apic_timer_c2_ok;
+
+extern int local_apic_timer_disabled;
+
+#else /* !CONFIG_X86_LOCAL_APIC */
+static inline void lapic_shutdown(void) { }
+
+#endif /* !CONFIG_X86_LOCAL_APIC */
+
+#endif /* __ASM_APIC_H */