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| author | Ingo Molnar <mingo@kernel.org> | 2016-03-08 12:26:07 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-03-08 12:26:07 +0100 |
| commit | fe36d8912c8e402c62ce5a8712b6a47baae1ceaa (patch) | |
| tree | f8394fd1dbb10b2d075e74d0f6b09ec29c795fe6 /arch/arc/include/asm/irqflags-arcv2.h | |
| parent | 16a8083cedbe628228dbb08fc1469c70e6208619 (diff) | |
| parent | e2857b8f11a289ed2b61d18d0665e05c1053c446 (diff) | |
| download | op-kernel-dev-fe36d8912c8e402c62ce5a8712b6a47baae1ceaa.zip op-kernel-dev-fe36d8912c8e402c62ce5a8712b6a47baae1ceaa.tar.gz | |
Merge branch 'linus' into irq/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arc/include/asm/irqflags-arcv2.h')
| -rw-r--r-- | arch/arc/include/asm/irqflags-arcv2.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/arch/arc/include/asm/irqflags-arcv2.h b/arch/arc/include/asm/irqflags-arcv2.h index 258b0e5..37c2f75 100644 --- a/arch/arc/include/asm/irqflags-arcv2.h +++ b/arch/arc/include/asm/irqflags-arcv2.h @@ -22,6 +22,7 @@ #define AUX_IRQ_CTRL 0x00E #define AUX_IRQ_ACT 0x043 /* Active Intr across all levels */ #define AUX_IRQ_LVL_PEND 0x200 /* Pending Intr across all levels */ +#define AUX_IRQ_HINT 0x201 /* For generating Soft Interrupts */ #define AUX_IRQ_PRIORITY 0x206 #define ICAUSE 0x40a #define AUX_IRQ_SELECT 0x40b @@ -30,8 +31,11 @@ /* Was Intr taken in User Mode */ #define AUX_IRQ_ACT_BIT_U 31 -/* 0 is highest level, but taken by FIRQs, if present in design */ -#define ARCV2_IRQ_DEF_PRIO 0 +/* + * User space should be interruptable even by lowest prio interrupt + * Safe even if actual interrupt priorities is fewer or even one + */ +#define ARCV2_IRQ_DEF_PRIO 15 /* seed value for status register */ #define ISA_INIT_STATUS_BITS (STATUS_IE_MASK | STATUS_AD_MASK | \ @@ -112,6 +116,16 @@ static inline int arch_irqs_disabled(void) return arch_irqs_disabled_flags(arch_local_save_flags()); } +static inline void arc_softirq_trigger(int irq) +{ + write_aux_reg(AUX_IRQ_HINT, irq); +} + +static inline void arc_softirq_clear(int irq) +{ + write_aux_reg(AUX_IRQ_HINT, 0); +} + #else .macro IRQ_DISABLE scratch |
