diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2016-05-30 19:21:22 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2016-05-30 22:45:04 +0530 |
| commit | 60f2b4b8af548150cc56bf6fd213e47897964794 (patch) | |
| tree | 6a2e3317963e0315259707df98f3fd0b12ce1f53 /arch/arc/Kconfig | |
| parent | 49acadff2a0cb4f7ff4efe0fb6c23f5fad81a3b3 (diff) | |
ARC: [intc-compact] simplify code for 2 priority levels
ARC700 support for 2 interrupt priorities historically allowed even slow
perpherals such as emac and uart to setup high priority interrupts
which was wrong from the beginning as they could possibly delay the more
critical timer interrupt.
The hardware support for 2 level interrupts in ARCompact is less than
ideal anyways (judging from the "hacks" in low level entry code and thus
is not used in productions systems I know of.
So reduce the scope of this to timer only, thereby reducing a bunch of
complexity.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/Kconfig')
| -rw-r--r-- | arch/arc/Kconfig | 22 |
1 files changed, 2 insertions, 20 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 0dcbacfdea4b..b14826a4f59c 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -186,9 +186,6 @@ if SMP config ARC_HAS_COH_CACHES def_bool n -config ARC_HAS_REENTRANT_IRQ_LV2 - def_bool n - config ARC_MCIP bool "ARConnect Multicore IP (MCIP) Support " depends on ISA_ARCV2 @@ -366,25 +363,10 @@ config NODES_SHIFT if ISA_ARCOMPACT config ARC_COMPACT_IRQ_LEVELS - bool "ARCompact IRQ Priorities: High(2)/Low(1)" + bool "Setup Timer IRQ as high Priority" default n - # Timer HAS to be high priority, for any other high priority config - select ARC_IRQ3_LV2 # if SMP, LV2 enabled ONLY if ARC implementation has LV2 re-entrancy - depends on !SMP || ARC_HAS_REENTRANT_IRQ_LV2 - -if ARC_COMPACT_IRQ_LEVELS - -config ARC_IRQ3_LV2 - bool - -config ARC_IRQ5_LV2 - bool - -config ARC_IRQ6_LV2 - bool - -endif #ARC_COMPACT_IRQ_LEVELS + depends on !SMP config ARC_FPU_SAVE_RESTORE bool "Enable FPU state persistence across context switch" |