x86: fold apic_ops into genapic

Impact: cleanup

make it simpler, don't need have one extra struct.

v2: fix the sgi_uv build

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 61 insertions, 0 deletions

diff --git a/arch/x86/include/asm/genapic.h b/arch/x86/include/asm/genapic.h
index 273b99452ae0..a6d0b00a544c 100644
--- a/arch/x86/include/asm/genapic.h
+++ b/arch/x86/include/asm/genapic.h
@@ -5,6 +5,7 @@
 
 #include <asm/mpspec.h>
 #include <asm/atomic.h>
+#include <asm/apic.h>
 
 /*
  * Copyright 2004 James Cleverdon, IBM.
@@ -83,10 +84,70 @@ struct genapic {
         void (*smp_callin_clear_local_apic)(void);
         void (*store_NMI_vector)(unsigned short *high, unsigned short *low);
         void (*inquire_remote_apic)(int apicid);
+
+        /* apic ops */
+        u32 (*read)(u32 reg);
+        void (*write)(u32 reg, u32 v);
+        u64 (*icr_read)(void);
+        void (*icr_write)(u32 low, u32 high);
+        void (*wait_icr_idle)(void);
+        u32 (*safe_wait_icr_idle)(void);
 };
 
 extern struct genapic *apic;
 
+static inline u32 apic_read(u32 reg)
+{
+        return apic->read(reg);
+}
+
+static inline void apic_write(u32 reg, u32 val)
+{
+        apic->write(reg, val);
+}
+
+static inline u64 apic_icr_read(void)
+{
+        return apic->icr_read();
+}
+
+static inline void apic_icr_write(u32 low, u32 high)
+{
+        apic->icr_write(low, high);
+}
+
+static inline void apic_wait_icr_idle(void)
+{
+        apic->wait_icr_idle();
+}
+
+static inline u32 safe_apic_wait_icr_idle(void)
+{
+        return apic->safe_wait_icr_idle();
+}
+
+
+static inline void ack_APIC_irq(void)
+{
+        /*
+         * ack_APIC_irq() actually gets compiled as a single instruction
+         * ... yummie.
+         */
+
+        /* Docs say use 0 for future compatibility */
+        apic_write(APIC_EOI, 0);
+}
+
+static inline unsigned default_get_apic_id(unsigned long x)
+{
+        unsigned int ver = GET_APIC_VERSION(apic_read(APIC_LVR));
+
+        if (APIC_XAPIC(ver))
+                return (x >> 24) & 0xFF;
+        else
+                return (x >> 24) & 0x0F;
+}
+
 /*
  * Warm reset vector default position:
  */