diff options
| author | peter <peter@FreeBSD.org> | 2002-09-22 04:45:21 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 2002-09-22 04:45:21 +0000 |
| commit | e8f9ac26c88b71174cb2ec87c856bbf2da81f7c2 (patch) | |
| tree | 336b9c28a5372b15800f7164f37383e1df6435de /sys/amd64/include/cpufunc.h | |
| parent | 8dcc127f8742522e0fd59452b76ce27383488a90 (diff) | |
| download | FreeBSD-src-e8f9ac26c88b71174cb2ec87c856bbf2da81f7c2.zip FreeBSD-src-e8f9ac26c88b71174cb2ec87c856bbf2da81f7c2.tar.gz | |
Create inlines for ltr(sel), lldt(sel), lidt(addr) rather than
functions that have one instruction.
Diffstat (limited to 'sys/amd64/include/cpufunc.h')
| -rw-r--r-- | sys/amd64/include/cpufunc.h | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/sys/amd64/include/cpufunc.h b/sys/amd64/include/cpufunc.h index 1c4806f..c7f9ace 100644 --- a/sys/amd64/include/cpufunc.h +++ b/sys/amd64/include/cpufunc.h @@ -46,6 +46,7 @@ #include <machine/psl.h> struct thread; +struct region_descriptor; __BEGIN_DECLS #define readb(va) (*(volatile u_int8_t *) (va)) @@ -468,6 +469,27 @@ load_gs(u_int sel) __asm __volatile("movl %0,%%gs" : : "rm" (sel)); } +/* void lidt(struct region_descriptor *addr); */ +static __inline void +lidt(struct region_descriptor *addr) +{ + __asm __volatile("lidt (%0)" : : "r" (addr)); +} + +/* void lldt(u_short sel); */ +static __inline void +lldt(u_short sel) +{ + __asm __volatile("lldt %0" : : "r" (sel)); +} + +/* void ltr(u_short sel); */ +static __inline void +ltr(u_short sel) +{ + __asm __volatile("ltr %0" : : "r" (sel)); +} + static __inline u_int rdr0(void) { @@ -622,6 +644,10 @@ void load_cr3(u_int cr3); void load_cr4(u_int cr4); void load_fs(u_int sel); void load_gs(u_int sel); +struct region_descriptor; +void lidt(struct region_descriptor *addr); +void lldt(u_short sel); +void ltr(u_short sel); void outb(u_int port, u_char data); void outl(u_int port, u_int data); void outsb(u_int port, void *addr, size_t cnt); @@ -663,7 +689,6 @@ void intr_restore(register_t ef); #endif /* __GNUC__ */ -void ltr(u_short sel); void reset_dbregs(void); __END_DECLS |
