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| author |   Elad Kanfi <eladkan@mellanox.com> | 2017-06-15 11:44:01 +0300 |
|---|---|---|
| committer |   Vineet Gupta <vgupta@synopsys.com> | 2017-08-28 15:17:36 -0700 |
| commit | 3f9cd874dcc8705b53c03431f0ae46c94e572349 (patch) | |
| tree | b5a20f147f53b46dc3fd9e6f39f10686dceac152 /arch/arc/plat-eznps/include/plat/ctop.h | |
| parent | ARC: [plat-eznps] Update the init sequence of aux regs per cpu. (diff) | |
| download | linux-dev-3f9cd874dcc8705b53c03431f0ae46c94e572349.tar.xz linux-dev-3f9cd874dcc8705b53c03431f0ae46c94e572349.zip | |
ARC: [plat-eznps] avoid toggling of DPC register
HW bug description: in case of HW thread context switch
the dpc configuration of the exiting thread is dragged
one cycle into the next thread.
In order to avoid the consequences of this bug, the DPC register
is set to an initial value, and not changed afterwards.
Signed-off-by: Elad Kanfi <eladkan@mellanox.com>
Signed-off-by: Noam Camus <noamca@mellanox.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/plat-eznps/include/plat/ctop.h')
| -rw-r--r-- | arch/arc/plat-eznps/include/plat/ctop.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arc/plat-eznps/include/plat/ctop.h b/arch/arc/plat-eznps/include/plat/ctop.h index 7729d3d18300..0c7d11022d0f 100644 --- a/arch/arc/plat-eznps/include/plat/ctop.h +++ b/arch/arc/plat-eznps/include/plat/ctop.h @@ -39,6 +39,7 @@ #define CTOP_AUX_LOGIC_CORE_ID (CTOP_AUX_BASE + 0x018) #define CTOP_AUX_MT_CTRL (CTOP_AUX_BASE + 0x020) #define CTOP_AUX_HW_COMPLY (CTOP_AUX_BASE + 0x024) +#define CTOP_AUX_DPC (CTOP_AUX_BASE + 0x02C) #define CTOP_AUX_LPC (CTOP_AUX_BASE + 0x030) #define CTOP_AUX_EFLAGS (CTOP_AUX_BASE + 0x080) #define CTOP_AUX_IACK (CTOP_AUX_BASE + 0x088) |