From: Alexey Brodkin Date: Thu, 23 Nov 2017 10:21:55 +0000 (+0300) Subject: ARC: Fix detection of dual-issue enabled X-Git-Tag: microblaze-4.16-rc1~45^2~9 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=329b4130bc5eb2a1b123a652b985dbdb08d6b9a8;p=linux-2.6-microblaze.git ARC: Fix detection of dual-issue enabled As per PRM bit #0 ("D") in EXEC_CTRL enables dual-issue if set to 0, otherwise if set to 1 all instructions are executed one at a time, i.e. dual-issue is disabled. Signed-off-by: Alexey Brodkin Signed-off-by: Vineet Gupta --- diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 7ef7d9a8ff89..9d27331fe69a 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -199,7 +199,7 @@ static void read_arc_build_cfg_regs(void) unsigned int exec_ctrl; READ_BCR(AUX_EXEC_CTRL, exec_ctrl); - cpu->extn.dual_enb = exec_ctrl & 1; + cpu->extn.dual_enb = !(exec_ctrl & 1); /* dual issue always present for this core */ cpu->extn.dual = 1;