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Date: Mon, 29 Apr 2019 14:27:49 -0700 From: Atish Patra <atish.patra@....com> To: linux-kernel@...r.kernel.org Cc: Atish Patra <atish.patra@....com>, Albert Ou <aou@...s.berkeley.edu>, Andrew Morton <akpm@...ux-foundation.org>, Anup Patel <anup@...infault.org>, Borislav Petkov <bp@...en8.de>, Changbin Du <changbin.du@...el.com>, Gary Guo <gary@...yguo.net>, "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>, Kees Cook <keescook@...omium.org>, linux-mm@...ck.org, linux-riscv@...ts.infradead.org, Luc Van Oostenryck <luc.vanoostenryck@...il.com>, Palmer Dabbelt <palmer@...ive.com>, Thomas Gleixner <tglx@...utronix.de>, Vlastimil Babka <vbabka@...e.cz>, x86@...nel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)), Christoph Hellwig <hch@...radead.org> Subject: [PATCH v3 2/3] RISC-V: Enable TLBFLUSH counters for debug kernel. 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 <atish.patra@....com> --- 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
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