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v0.5.1
https://github.com/torvalds/linux
Revision 6e1b29c3094688b6803fa1f9d5da676a7d0fbff9 authored by James Hogan on 20 May 2016, 22:28:39 UTC, committed by Ralf Baechle on 28 May 2016, 10:35:10 UTC
When the toolchain doesn't support MSA we encode MSA instructions
explicitly in assembly. Unfortunately we use .word for both MIPS and
microMIPS encodings which is wrong, since 32-bit microMIPS instructions
are made up from a pair of halfwords.

- The most significant halfword always comes first, so for little endian
  builds the halves will be emitted in the wrong order.

- 32-bit alignment isn't guaranteed, so the assembler may insert a
  16-bit nop instruction to pad the instruction stream to a 32-bit
  boundary.

Use the new instruction encoding macros to encode microMIPS MSA
instructions correctly.

Fixes: d96cc3d1ec5d ("MIPS: Add microMIPS MSA support.")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <Paul.Burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13312/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
1 parent 1c48a17
History
Tip revision: 6e1b29c3094688b6803fa1f9d5da676a7d0fbff9 authored by James Hogan on 20 May 2016, 22:28:39 UTC
MIPS: Fix little endian microMIPS MSA encodings
Tip revision: 6e1b29c
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