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| author |   Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2017-11-23 13:21:55 +0300 |
|---|---|---|
| committer |   Vineet Gupta <vgupta@synopsys.com> | 2017-11-28 18:12:07 -0800 |
| commit | 329b4130bc5eb2a1b123a652b985dbdb08d6b9a8 (patch) | |
| tree | 6d494ede0ab6c6c6874666a209f356acde85d7bd /arch/arc | |
| parent | Linux 4.15-rc1 (diff) | |
| download | linux-dev-329b4130bc5eb2a1b123a652b985dbdb08d6b9a8.tar.xz linux-dev-329b4130bc5eb2a1b123a652b985dbdb08d6b9a8.zip | |
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 <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/kernel/setup.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; |