Skip to main content

Browse the archive

https://github.com/torvalds/linux
17 May 2024, 09:02:56 UTC
Revision 1c48a177351ba8cbf6871f035496fce0e11d8fa3 authored by James Hogan on 20 May 2016, 22:28:38 UTC, committed by Ralf Baechle on 28 May 2016, 10:35:10 UTC 
MIPS: Add missing VZ accessor microMIPS encodings
 
Toolchains may be used which support microMIPS but not VZ instructions
(i.e. binutis 2.22 & 2.23), so extend the explicitly encoded versions of
the guest COP0 register & guest TLB access macros to support microMIPS
encodings too, using the new macros.

This prevents non-microMIPS instructions being executed in microMIPS
mode during CPU probe on cores supporting VZ (e.g. M5150), which cause
reserved instruction exceptions early during boot.

Fixes: bad50d79255a ("MIPS: Fix VZ probe gas errors with binutils <2.24")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13311/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
1 parent 0dfa1c1
History
Tip revision: 1c48a177351ba8cbf6871f035496fce0e11d8fa3 authored by James Hogan on 20 May 2016, 22:28:38 UTC
MIPS: Add missing VZ accessor microMIPS encodings
Tip revision: 1c48a17
File Mode Size
Makefile -rw-r--r-- 377 bytes
compat.c -rw-r--r-- 19.1 KB
compat_mq.c -rw-r--r-- 3.9 KB
ipc_sysctl.c -rw-r--r-- 5.4 KB
mq_sysctl.c -rw-r--r-- 2.9 KB
mqueue.c -rw-r--r-- 35.7 KB
msg.c -rw-r--r-- 24.1 KB
msgutil.c -rw-r--r-- 3.6 KB
namespace.c -rw-r--r-- 4.0 KB
sem.c -rw-r--r-- 56.3 KB
shm.c -rw-r--r-- 33.1 KB
syscall.c -rw-r--r-- 2.3 KB
util.c -rw-r--r-- 21.1 KB
util.h -rw-r--r-- 6.4 KB
back to top