Introduce fixed values for PMR that are going to be used to mask and unmask interrupts by priority. These values are chosent in such a way that a single bit (GIC_PMR_UNMASKED_BIT) encodes the information whether interrupts are masked or not.
Signed-off-by: Julien Thierry <[email protected]> Suggested-by: Daniel Thompson <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Will Deacon <[email protected]> --- arch/arm64/include/asm/ptrace.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index fce22c4..ce6998c 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -25,6 +25,12 @@ #define CurrentEL_EL1 (1 << 2) #define CurrentEL_EL2 (2 << 2) +/* PMR values used to mask/unmask interrupts */ +#define GIC_PRIO_IRQON 0xf0 +#define GIC_PRIO_STATUS_SHIFT 6 +#define GIC_PRIO_STATUS_BIT (1 << GIC_PRIO_STATUS_SHIFT) +#define GIC_PRIO_IRQOFF (GIC_PRIO_IRQON ^ GIC_PRIO_STATUS_BIT) + /* Additional SPSR bits not exposed in the UABI */ #define PSR_IL_BIT (1 << 20) -- 1.9.1
