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  • #ifndef _ASM_X86_EFI_H
    #define _ASM_X86_EFI_H
    
    #ifdef CONFIG_X86_32
    
    
    extern unsigned long asmlinkage efi_call_phys(void *, ...);
    
    #define efi_call_phys0(f)		efi_call_phys(f)
    #define efi_call_phys1(f, a1)		efi_call_phys(f, a1)
    #define efi_call_phys2(f, a1, a2)	efi_call_phys(f, a1, a2)
    #define efi_call_phys3(f, a1, a2, a3)	efi_call_phys(f, a1, a2, a3)
    #define efi_call_phys4(f, a1, a2, a3, a4)	\
    	efi_call_phys(f, a1, a2, a3, a4)
    #define efi_call_phys5(f, a1, a2, a3, a4, a5)	\
    	efi_call_phys(f, a1, a2, a3, a4, a5)
    #define efi_call_phys6(f, a1, a2, a3, a4, a5, a6)	\
    	efi_call_phys(f, a1, a2, a3, a4, a5, a6)
    /*
     * Wrap all the virtual calls in a way that forces the parameters on the stack.
     */
    
    #define efi_call_virt(f, args...) \
         ((efi_##f##_t __attribute__((regparm(0)))*)efi.systab->runtime->f)(args)
    
    #define efi_call_virt0(f)		efi_call_virt(f)
    #define efi_call_virt1(f, a1)		efi_call_virt(f, a1)
    #define efi_call_virt2(f, a1, a2)	efi_call_virt(f, a1, a2)
    #define efi_call_virt3(f, a1, a2, a3)	efi_call_virt(f, a1, a2, a3)
    #define efi_call_virt4(f, a1, a2, a3, a4)	\
    	efi_call_virt(f, a1, a2, a3, a4)
    #define efi_call_virt5(f, a1, a2, a3, a4, a5)	\
    	efi_call_virt(f, a1, a2, a3, a4, a5)
    #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6)	\
    	efi_call_virt(f, a1, a2, a3, a4, a5, a6)
    
    #define efi_ioremap(addr, size)			ioremap(addr, size)
    
    
    #else /* !CONFIG_X86_32 */
    
    #define MAX_EFI_IO_PAGES	100
    
    extern u64 efi_call0(void *fp);
    extern u64 efi_call1(void *fp, u64 arg1);
    extern u64 efi_call2(void *fp, u64 arg1, u64 arg2);
    extern u64 efi_call3(void *fp, u64 arg1, u64 arg2, u64 arg3);
    extern u64 efi_call4(void *fp, u64 arg1, u64 arg2, u64 arg3, u64 arg4);
    extern u64 efi_call5(void *fp, u64 arg1, u64 arg2, u64 arg3,
    		     u64 arg4, u64 arg5);
    extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
    		     u64 arg4, u64 arg5, u64 arg6);
    
    #define efi_call_phys0(f)			\
    	efi_call0((void *)(f))
    #define efi_call_phys1(f, a1)			\
    	efi_call1((void *)(f), (u64)(a1))
    #define efi_call_phys2(f, a1, a2)			\
    	efi_call2((void *)(f), (u64)(a1), (u64)(a2))
    #define efi_call_phys3(f, a1, a2, a3)				\
    	efi_call3((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3))
    #define efi_call_phys4(f, a1, a2, a3, a4)				\
    	efi_call4((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3),		\
    		  (u64)(a4))
    #define efi_call_phys5(f, a1, a2, a3, a4, a5)				\
    	efi_call5((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3),		\
    		  (u64)(a4), (u64)(a5))
    #define efi_call_phys6(f, a1, a2, a3, a4, a5, a6)			\
    	efi_call6((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3),		\
    		  (u64)(a4), (u64)(a5), (u64)(a6))
    
    #define efi_call_virt0(f)				\
    	efi_call0((void *)(efi.systab->runtime->f))
    #define efi_call_virt1(f, a1)					\
    	efi_call1((void *)(efi.systab->runtime->f), (u64)(a1))
    #define efi_call_virt2(f, a1, a2)					\
    	efi_call2((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2))
    #define efi_call_virt3(f, a1, a2, a3)					\
    	efi_call3((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
    		  (u64)(a3))
    #define efi_call_virt4(f, a1, a2, a3, a4)				\
    	efi_call4((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
    		  (u64)(a3), (u64)(a4))
    #define efi_call_virt5(f, a1, a2, a3, a4, a5)				\
    	efi_call5((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
    		  (u64)(a3), (u64)(a4), (u64)(a5))
    #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6)			\
    	efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
    		  (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
    
    extern void *efi_ioremap(unsigned long offset, unsigned long size);
    
    #endif /* CONFIG_X86_32 */
    
    extern void efi_reserve_bootmem(void);
    extern void efi_call_phys_prelog(void);
    extern void efi_call_phys_epilog(void);
    
    #endif