[PATCH 07/10] ARC: [plat-eznps] disabled stall counter due to a HW bug

From	Noam Camus <noamca@mellanox.com>
Newsgroups	linux.kernel
Subject	[PATCH 07/10] ARC: [plat-eznps] disabled stall counter due to a HW bug
Date	2017-05-25 04:40 +0200
Message-ID	<tKQQV-2dF-5@gated-at.bofh.it> (permalink)
References	<tKQQV-2dF-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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From: Noam Camus <noamca@mellanox.com>

This counter represents threshold for consecutive stall that which
trigger HW threads scheduling.
Low values of this counter cause downgrade in performance
and in the worst case even a livelock.

Signed-off-by: Noam Camus <noamca@mellanox.com>
---
 arch/arc/plat-eznps/mtm.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/arc/plat-eznps/mtm.c b/arch/arc/plat-eznps/mtm.c
index aaaaffd..e0cb36b 100644
--- a/arch/arc/plat-eznps/mtm.c
+++ b/arch/arc/plat-eznps/mtm.c
@@ -119,8 +119,6 @@ void mtm_enable_core(unsigned int cpu)
 	mt_ctrl.value = 0;
 	mt_ctrl.hsen = 1;
 	mt_ctrl.hs_cnt = MT_CTRL_HS_CNT;
-	mt_ctrl.sten = 1;
-	mt_ctrl.st_cnt = MT_CTRL_ST_CNT;
 	mt_ctrl.mten = 1;
 	write_aux_reg(CTOP_AUX_MT_CTRL, mt_ctrl.value);
 
-- 
1.7.1

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[PATCH 07/10] ARC: [plat-eznps] disabled stall counter due to a HW bug Noam Camus <noamca@mellanox.com> - 2017-05-25 04:40 +0200
  Re: [PATCH 07/10] ARC: [plat-eznps] disabled stall counter due to a  HW bug Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2017-05-25 13:20 +0200
    RE: [PATCH 07/10] ARC: [plat-eznps] disabled stall counter due to a  HW bug Noam Camus <noamca@mellanox.com> - 2017-05-25 13:20 +0200

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