diff options
Diffstat (limited to 'arch/arm64/include/asm/ptrace.h')
| -rw-r--r-- | arch/arm64/include/asm/ptrace.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index 11403fdd0a50..d3f9dc8729bb 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -25,6 +25,24 @@ #define CurrentEL_EL1 (1 << 2) #define CurrentEL_EL2 (2 << 2) +/* PMR values used to mask/unmask interrupts */ +#define ICC_PMR_EL1_G_SHIFT 6 +#define ICC_PMR_EL1_G_BIT (1 << ICC_PMR_EL1_G_SHIFT) +#define ICC_PMR_EL1_UNMASKED 0xf0 +#define ICC_PMR_EL1_MASKED (ICC_PMR_EL1_UNMASKED ^ ICC_PMR_EL1_G_BIT) + +/* + * This is the GIC interrupt mask bit. It is not actually part of the + * PSR and so does not appear in the user API, we are simply using some + * reserved bits in the PSR to store some state from the interrupt + * controller. The context save/restore functions will extract the + * ICC_PMR_EL1_G_BIT and save it as the PSR_G_BIT. + */ +#define PSR_G_BIT 0x00400000 +#define PSR_G_SHIFT 22 +#define PSR_G_PMR_G_SHIFT (PSR_G_SHIFT - ICC_PMR_EL1_G_SHIFT) +#define PSR_I_PMR_G_SHIFT (7 - ICC_PMR_EL1_G_SHIFT) + /* AArch32-specific ptrace requests */ #define COMPAT_PTRACE_GETREGS 12 #define COMPAT_PTRACE_SETREGS 13 @@ -142,8 +160,13 @@ struct pt_regs { #define processor_mode(regs) \ ((regs)->pstate & PSR_MODE_MASK) +#ifndef CONFIG_USE_ICC_SYSREGS_FOR_IRQFLAGS #define interrupts_enabled(regs) \ (!((regs)->pstate & PSR_I_BIT)) +#else +#define interrupts_enabled(regs) \ + ((!((regs)->pstate & PSR_I_BIT)) && (!((regs)->pstate & PSR_G_BIT))) +#endif #define fast_interrupts_enabled(regs) \ (!((regs)->pstate & PSR_F_BIT)) |