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// Misc function and variable declarations.
#ifndef __STACKS_H
#define __STACKS_H
#include "autoconf.h" // CONFIG_*
#include "types.h" // u32
#define CALL32SMM_CMDID 0xb5
#define CALL32SMM_ENTERID 0x1234
#define CALL32SMM_RETURNID 0x5678
// stacks.c
extern int HaveSmmCall32;
u32 __call32(void *func, u32 eax, u32 errret);
#define call32(func, eax, errret) ({ \
extern void _cfunc32flat_ ##func (void); \
__call32( _cfunc32flat_ ##func , (u32)(eax), (errret)); \
})
extern u8 ExtraStack[], *StackPos;
u32 __stack_hop(u32 eax, u32 edx, void *func);
#define stack_hop(func, eax, edx) \
__stack_hop((u32)(eax), (u32)(edx), (func))
u32 __stack_hop_back(u32 eax, u32 edx, void *func);
#define stack_hop_back(func, eax, edx) ({ \
extern void _cfunc16_ ##func (void); \
__stack_hop_back((u32)(eax), (u32)(edx), _cfunc16_ ##func ); \
})
int on_extra_stack(void);
struct bregs;
void farcall16(struct bregs *callregs);
void farcall16big(struct bregs *callregs);
#if CONFIG_X86
void __call16_int(struct bregs *callregs, u16 offset);
#define call16_int(nr, callregs) do { \
extern void irq_trampoline_ ##nr (void); \
__call16_int((callregs), (u32)&irq_trampoline_ ##nr ); \
} while (0)
#elif CONFIG_PARISC
#define call16_int(nr, callregs) do {} while(0)
#endif
void reset(void);
extern struct thread_info MainThread;
struct thread_info *getCurThread(void);
void yield_toirq(void);
#if CONFIG_THREADS
int threads_during_optionroms(void);
void yield(void);
void thread_setup(void);
void run_thread(void (*func)(void*), void *data);
void wait_threads(void);
#else
#define threads_during_optionroms() (0)
#define yield() while (0)
#define thread_setup() while (0)
#define run_thread(func,data) func(data)
#define wait_threads() while (0)
#endif
struct mutex_s { u32 isLocked; };
void mutex_lock(struct mutex_s *mutex);
void mutex_unlock(struct mutex_s *mutex);
void start_preempt(void);
void finish_preempt(void);
int wait_preempt(void);
void check_preempt(void);
u32 __call32_params(void *func, u32 eax, u32 edx, u32 ecx, u32 errret);
#define call32_params(func, eax, edx, ecx, errret) ({ \
extern void _cfunc32flat_ ##func (void); \
__call32_params( _cfunc32flat_ ##func , (u32)(eax), (u32)(edx) \
, (u32)(ecx), (errret)); \
})
// Inline functions
// Check if a call to stack_hop_back is needed.
static inline int
need_hop_back(void)
{
return !MODESEGMENT || on_extra_stack();
}
#endif // stacks.h
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