diff options
Diffstat (limited to 'arch/x86/machine/tcb.h')
| -rw-r--r-- | arch/x86/machine/tcb.h | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/arch/x86/machine/tcb.h b/arch/x86/machine/tcb.h index 96ac66a7..e18da15b 100644 --- a/arch/x86/machine/tcb.h +++ b/arch/x86/machine/tcb.h @@ -25,28 +25,20 @@ #include <machine/trap.h> /* - * Forward declaration. - */ -struct thread; - -/* * Architecture specific thread data. */ struct tcb { - struct trap_frame *frame; + unsigned long sp; + unsigned long ip; }; /* - * Set up the tcb module. - */ -void tcb_setup(void); - -/* - * Create a TCB. + * Initialize a TCB. * - * Prepare the given stack for execution. + * Prepare the given stack for execution. The context is defined so that it + * will call fn() with interrupts disabled when loaded. */ -int tcb_create(struct tcb **tcbp, void *stack, const struct thread *thread); +void tcb_init(struct tcb *tcb, void *stack, void (*fn)(void)); /* * Load a TCB. @@ -55,4 +47,11 @@ int tcb_create(struct tcb **tcbp, void *stack, const struct thread *thread); */ void __noreturn tcb_load(struct tcb *tcb); +/* + * Context switch. + * + * Called with interrupts disabled. + */ +void tcb_switch(struct tcb *prev, struct tcb *next); + #endif /* _X86_TCB_H */ |