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authorPaul Burton <paul.burton@imgtec.com>2015-09-22 11:12:13 -0700
committerRalf Baechle <ralf@linux-mips.org>2015-11-11 08:35:05 +0100
commit192fbc20258c79e3f776a5ce6cea4654376f5af6 (patch)
tree1426a15c5cf424837ad689206dc424c9f6a8553f /arch/mips
parent946db17349f6922a9c8a959c34ad9fb3aa238952 (diff)
MIPS: CPS: Skip Config1 presence check
The Config1 register is architecturally defined as required, and is thus present in all systems which may make use of cps-vec.S. Skip the check for its presence via the Config.M bit. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11204/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/kernel/cps-vec.S4
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S
index 2164dc4deace..8fd5a276cad2 100644
--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -50,9 +50,7 @@
* MT is not supported then branch to nomt.
*/
.macro has_mt dest, nomt
- mfc0 \dest, CP0_CONFIG
- bgez \dest, \nomt
- mfc0 \dest, CP0_CONFIG, 1
+ mfc0 \dest, CP0_CONFIG, 1
bgez \dest, \nomt
mfc0 \dest, CP0_CONFIG, 2
bgez \dest, \nomt