x86, apic: untangle the send_IPI_*() jungle

Our send_IPI_*() methods and definitions are a twisted mess: the same
symbol is defined to different things depending on .config details,
in a non-transparent way.

 - spread out the quirks into separately named per apic driver methods

 - prefix the standard PC methods with default_

 - get rid of wrapper macro obfuscation

 - clean up various details

Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 17 insertions, 24 deletions

diff --git a/arch/x86/include/asm/mach-default/mach_apic.h b/arch/x86/include/asm/mach-default/mach_apic.h
index 8972f8434145..2e4104cf3481 100644
--- a/arch/x86/include/asm/mach-default/mach_apic.h
+++ b/arch/x86/include/asm/mach-default/mach_apic.h
@@ -20,7 +20,6 @@ static inline const struct cpumask *default_target_cpus(void)
 #ifdef CONFIG_X86_64
 #include <asm/genapic.h>
 #define read_apic_id()  (apic->get_apic_id(apic_read(APIC_ID)))
-#define send_IPI_self (apic->send_IPI_self)
 #define wakeup_secondary_cpu (apic->wakeup_cpu)
 extern void default_setup_apic_routing(void);
 #else
diff --git a/arch/x86/include/asm/mach-default/mach_ipi.h b/arch/x86/include/asm/mach-default/mach_ipi.h
index 089399643dfa..85dec630c69c 100644
--- a/arch/x86/include/asm/mach-default/mach_ipi.h
+++ b/arch/x86/include/asm/mach-default/mach_ipi.h
@@ -4,45 +4,40 @@
 /* Avoid include hell */
 #define NMI_VECTOR 0x02
 
-void send_IPI_mask_bitmask(const struct cpumask *mask, int vector);
-void send_IPI_mask_allbutself(const struct cpumask *mask, int vector);
-void __send_IPI_shortcut(unsigned int shortcut, int vector);
+void default_send_IPI_mask_bitmask(const struct cpumask *mask, int vector);
+void default_send_IPI_mask_allbutself(const struct cpumask *mask, int vector);
+void __default_send_IPI_shortcut(unsigned int shortcut, int vector);
 
 extern int no_broadcast;
 
 #ifdef CONFIG_X86_64
 #include <asm/genapic.h>
-#define send_IPI_mask (apic->send_IPI_mask)
-#define send_IPI_mask_allbutself (apic->send_IPI_mask_allbutself)
 #else
-static inline void send_IPI_mask(const struct cpumask *mask, int vector)
+static inline void default_send_IPI_mask(const struct cpumask *mask, int vector)
 {
-        send_IPI_mask_bitmask(mask, vector);
+        default_send_IPI_mask_bitmask(mask, vector);
 }
-void send_IPI_mask_allbutself(const struct cpumask *mask, int vector);
+void default_send_IPI_mask_allbutself(const struct cpumask *mask, int vector);
 #endif
 
-static inline void __local_send_IPI_allbutself(int vector)
+static inline void __default_local_send_IPI_allbutself(int vector)
 {
         if (no_broadcast || vector == NMI_VECTOR)
-                send_IPI_mask_allbutself(cpu_online_mask, vector);
+                apic->send_IPI_mask_allbutself(cpu_online_mask, vector);
         else
-                __send_IPI_shortcut(APIC_DEST_ALLBUT, vector);
+                __default_send_IPI_shortcut(APIC_DEST_ALLBUT, vector);
 }
 
-static inline void __local_send_IPI_all(int vector)
+static inline void __default_local_send_IPI_all(int vector)
 {
         if (no_broadcast || vector == NMI_VECTOR)
-                send_IPI_mask(cpu_online_mask, vector);
+                apic->send_IPI_mask(cpu_online_mask, vector);
         else
-                __send_IPI_shortcut(APIC_DEST_ALLINC, vector);
+                __default_send_IPI_shortcut(APIC_DEST_ALLINC, vector);
 }
 
-#ifdef CONFIG_X86_64
-#define send_IPI_allbutself (apic->send_IPI_allbutself)
-#define send_IPI_all (apic->send_IPI_all)
-#else
-static inline void send_IPI_allbutself(int vector)
+#ifdef CONFIG_X86_32
+static inline void default_send_IPI_allbutself(int vector)
 {
         /*
          * if there are no other CPUs in the system then we get an APIC send 
@@ -51,13 +46,12 @@ static inline void send_IPI_allbutself(int vector)
         if (!(num_online_cpus() > 1))
                 return;
 
-        __local_send_IPI_allbutself(vector);
-        return;
+        __default_local_send_IPI_allbutself(vector);
 }
 
-static inline void send_IPI_all(int vector)
+static inline void default_send_IPI_all(int vector)
 {
-        __local_send_IPI_all(vector);
+        __default_local_send_IPI_all(vector);
 }
 #endif