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Commit e3288f31 authored by Michal Simek's avatar Michal Simek
Browse files

microblaze: Fix unaligned exception for little endian platform 



Half word unaligned accesses need to be fixed.

Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent a3c26959

arch/microblaze/kernel/hw_exception_handler.S

+9 −0
Original line number Diff line number Diff line
@@ -945,11 +945,20 @@ store3: sbi r3, r4, 2; 
store4:	sbi	r3, r4, 3;	/* Delay slot */

ex_shw_vm:

	/* Store the lower half-word, byte-by-byte into destination address */

#ifdef __MICROBLAZEEL__

	lbui	r3, r5, 0;

store5:	sbi	r3, r4, 0;

	lbui	r3, r5, 1;

	brid	ret_from_exc;

store6:	sbi	r3, r4, 1;	/* Delay slot */

#else

	lbui	r3, r5, 2;

store5:	sbi	r3, r4, 0;

	lbui	r3, r5, 3;

	brid	ret_from_exc;

store6:	sbi	r3, r4, 1;	/* Delay slot */

#endif



ex_sw_end_vm:			/* Exception handling of store word, ends. */



/* We have to prevent cases that get/put_user macros get unaligned pointer