]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
MIPS: math-emu: Correct the emulation of microMIPS ADDIUPC instruction
authorMaciej W. Rozycki <macro@imgtec.com>
Fri, 22 Jan 2016 05:21:00 +0000 (05:21 +0000)
committerRalf Baechle <ralf@linux-mips.org>
Sun, 24 Jan 2016 00:36:10 +0000 (01:36 +0100)
commit69a1e6cbdf1f40d5dcae84c5a538d390b6d2c307
tree5cfd41a53625d104620bb267345d0ecac2798f8a
parent733b8bc183f491e8263009edf8ef184fb44a6882
MIPS: math-emu: Correct the emulation of microMIPS ADDIUPC instruction

Emulate the microMIPS ADDIUPC instruction directly in `mips_dsemul'.  If
executed in the emulation frame, this instruction produces an incorrect
result, because the value of the PC there is not the same as where the
instruction originated.

Reshape code so as to handle all microMIPS cases together.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12175/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/include/uapi/asm/inst.h
arch/mips/math-emu/dsemul.c