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amdgpu_drm.h

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  • flat.h 1.41 KiB
    /*
     * uClinux flat-format executables
     *
     * Copyright 2003-2009 Analog Devices Inc.
     *
     * Licensed under the GPL-2
     */
    
    #ifndef __BLACKFIN_FLAT_H__
    #define __BLACKFIN_FLAT_H__
    
    #include <asm/unaligned.h>
    
    #define	flat_argvp_envp_on_stack()		0
    #define	flat_old_ram_flag(flags)		(flags)
    
    extern unsigned long bfin_get_addr_from_rp (u32 *ptr, u32 relval,
    					u32 flags, u32 *persistent);
    
    extern void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval);
    
    /* The amount by which a relocation can exceed the program image limits
       without being regarded as an error.  */
    
    #define	flat_reloc_valid(reloc, size)	((reloc) <= (size))
    
    static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
    					u32 *addr, u32 *persistent)
    {
    	*addr = bfin_get_addr_from_rp(rp, relval, flags, persistent);
    	return 0;
    }
    
    static inline int flat_put_addr_at_rp(u32 __user *rp, u32 val, u32 relval)
    {
    	bfin_put_addr_at_rp(rp, val, relval);
    	return 0;
    }
    
    /* Convert a relocation entry into an address.  */
    static inline unsigned long
    flat_get_relocate_addr (unsigned long relval)
    {
    	return relval & 0x03ffffff; /* Mask out top 6 bits */
    }
    
    static inline int flat_set_persistent(u32 relval, u32 *persistent)
    {
    	int type = (relval >> 26) & 7;
    	if (type == 3) {
    		*persistent = relval << 16;
    		return 1;
    	}
    	return 0;
    }
    
    static inline int flat_addr_absolute(unsigned long relval)
    {
    	return (relval & (1 << 29)) != 0;
    }
    
    #endif				/* __BLACKFIN_FLAT_H__ */