Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * arch/h8300/asm/include/flat.h -- uClinux flat-format executables
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #ifndef __H8300_FLAT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #define __H8300_FLAT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * on the H8 a couple of the relocations have an instruction in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  * top byte.  As there can only be 24bits of address space,  we just
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * always preserve that 8bits at the top,  when it isn't an instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * is is 0 (davidm@snapgear.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define	flat_get_relocate_addr(rel)		(rel & ~0x00000001)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 					u32 *addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	u32 val = get_unaligned((__force u32 *)rp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	if (!(flags & FLAT_FLAG_GOTPIC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		val &= 0x00ffffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	*addr = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	u32 *p = (__force u32 *)rp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	put_unaligned((addr & 0x00ffffff) | (*(char *)p << 24), p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #endif /* __H8300_FLAT_H__ */