The TLB flush counters under vmstat seems to be very helpful while
debugging TLB flush performance in RISC-V.
Add the Kconfig option only for debug kernels.
Signed-off-by: Atish Patra <[email protected]>
---
arch/riscv/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index eb56c82d8aa1..c1ee876d1e7f 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -49,6 +49,7 @@ config RISCV
select GENERIC_IRQ_MULTI_HANDLER
select ARCH_HAS_PTE_SPECIAL
select HAVE_EBPF_JIT if 64BIT
+ select HAVE_ARCH_DEBUG_TLBFLUSH if DEBUG_KERNEL
config MMU
def_bool y
--
2.21.0