Merge branch 'master' of git://git.denx.de/u-boot

[oweals/u-boot.git] / arch / x86 / include / asm / lapic.h

diff --git a/arch/x86/include/asm/lapic.h b/arch/x86/include/asm/lapic.h
index f60974a878aa8d48979ae404bdd83b517c54fab6..bc2b2d152051b83c714185f4da309754a974f2a6 100644 (file)
--- a/arch/x86/include/asm/lapic.h
+++ b/arch/x86/include/asm/lapic.h
@@ -9,11 +9,6 @@
 #ifndef _ARCH_ASM_LAPIC_H
 #define _ARCH_ASM_LAPIC_H
 
-#include <asm/io.h>
-#include <asm/msr.h>
-#include <asm/msr-index.h>
-#include <asm/processor.h>
-
 #define LAPIC_DEFAULT_BASE             0xfee00000
 
 #define LAPIC_ID                       0x020
@@ -66,126 +61,17 @@
 #define LAPIC_DELIVERY_MODE_NMI                (4 << 8)
 #define LAPIC_DELIVERY_MODE_EXTINT     (7 << 8)
 
-static inline __attribute__((always_inline))
-               unsigned long lapic_read(unsigned long reg)
-{
-       return readl(LAPIC_DEFAULT_BASE + reg);
-}
-
-static inline __attribute__((always_inline))
-               void lapic_write(unsigned long reg, unsigned long val)
-{
-       writel(val, LAPIC_DEFAULT_BASE + reg);
-}
-
-static inline __attribute__((always_inline)) void lapic_wait_icr_idle(void)
-{
-       do { } while (lapic_read(LAPIC_ICR) & LAPIC_ICR_BUSY);
-}
-
-static inline void enable_lapic(void)
-{
-       msr_t msr;
-
-       msr = msr_read(MSR_IA32_APICBASE);
-       msr.hi &= 0xffffff00;
-       msr.lo |= MSR_IA32_APICBASE_ENABLE;
-       msr.lo &= ~MSR_IA32_APICBASE_BASE;
-       msr.lo |= LAPIC_DEFAULT_BASE;
-       msr_write(MSR_IA32_APICBASE, msr);
-}
-
-static inline void disable_lapic(void)
-{
-       msr_t msr;
-
-       msr = msr_read(MSR_IA32_APICBASE);
-       msr.lo &= ~MSR_IA32_APICBASE_ENABLE;
-       msr_write(MSR_IA32_APICBASE, msr);
-}
-
-static inline __attribute__((always_inline)) unsigned long lapicid(void)
-{
-       return lapic_read(LAPIC_ID) >> 24;
-}
-
-static inline __attribute__((always_inline)) void stop_this_cpu(void)
-{
-       /* Called by an AP when it is ready to halt and wait for a new task */
-       for (;;)
-               cpu_hlt();
-}
-
-#define xchg(ptr, v)   ((__typeof__(*(ptr)))__xchg((unsigned long)(v), (ptr), \
-                                                   sizeof(*(ptr))))
-
-struct __xchg_dummy    { unsigned long a[100]; };
-#define __xg(x)                ((struct __xchg_dummy *)(x))
+unsigned long lapic_read(unsigned long reg);
 
-/*
- * Note: no "lock" prefix even on SMP. xchg always implies lock anyway.
- *
- * Note 2: xchg has side effect, so that attribute volatile is necessary,
- *         but generally the primitive is invalid, *ptr is output argument.
- */
-static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
-                                  int size)
-{
-       switch (size) {
-       case 1:
-               __asm__ __volatile__("xchgb %b0,%1"
-                       : "=q" (x)
-                       : "m" (*__xg(ptr)), "0" (x)
-                       : "memory");
-               break;
-       case 2:
-               __asm__ __volatile__("xchgw %w0,%1"
-                       : "=r" (x)
-                       : "m" (*__xg(ptr)), "0" (x)
-                       : "memory");
-               break;
-       case 4:
-               __asm__ __volatile__("xchgl %0,%1"
-                       : "=r" (x)
-                       : "m" (*__xg(ptr)), "0" (x)
-                       : "memory");
-               break;
-       }
-
-       return x;
-}
-
-static inline void lapic_write_atomic(unsigned long reg, unsigned long v)
-{
-       (void)xchg((volatile unsigned long *)(LAPIC_DEFAULT_BASE + reg), v);
-}
-
-#define lapic_read_around(x)           lapic_read(x)
-#define lapic_write_around(x, y)       lapic_write_atomic((x), (y))
-
-static inline int lapic_remote_read(int apicid, int reg, unsigned long *pvalue)
-{
-       int timeout;
-       unsigned long status;
-       int result;
-
-       lapic_wait_icr_idle();
-       lapic_write_around(LAPIC_ICR2, SET_LAPIC_DEST_FIELD(apicid));
-       lapic_write_around(LAPIC_ICR, LAPIC_DM_REMRD | (reg >> 4));
-
-       timeout = 0;
-       do {
-               status = lapic_read(LAPIC_ICR) & LAPIC_ICR_RR_MASK;
-       } while (status == LAPIC_ICR_RR_INPROG && timeout++ < 1000);
-
-       result = -1;
-       if (status == LAPIC_ICR_RR_VALID) {
-               *pvalue = lapic_read(LAPIC_RRR);
-               result = 0;
-       }
-
-       return result;
-}
+void lapic_write(unsigned long reg, unsigned long v);
+
+void enable_lapic(void);
+
+void disable_lapic(void);
+
+unsigned long lapicid(void);
+
+int lapic_remote_read(int apicid, int reg, unsigned long *pvalue);
 
 void lapic_setup(void);