diff options
Diffstat (limited to 'arch/xtensa/Kconfig')
| -rw-r--r-- | arch/xtensa/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 82044f732323..128e63d3a632 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -139,6 +139,22 @@ config XTENSA_VARIANT_HAVE_PERF_EVENTS If unsure, say N. +config XTENSA_FAKE_NMI + bool "Treat PMM IRQ as NMI" + depends on XTENSA_VARIANT_HAVE_PERF_EVENTS + default n + help + If PMM IRQ is the only IRQ at EXCM level it is safe to + treat it as NMI, which improves accuracy of profiling. + + If there are other interrupts at or above PMM IRQ priority level + but not above the EXCM level, PMM IRQ still may be treated as NMI, + but only if these IRQs are not used. There will be a build warning + saying that this is not safe, and a bugcheck if one of these IRQs + actually fire. + + If unsure, say N. + config XTENSA_UNALIGNED_USER bool "Unaligned memory access in use space" help |