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From: Andy Chiu <andy.chiu@sifive.com>
To: Paul Walmsley <paul.walmsley@sifive.com>,
	 Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	 Alexandre Ghiti <alexghiti@rivosinc.com>,
	Zong Li <zong.li@sifive.com>,
	 Steven Rostedt <rostedt@goodmis.org>,
	 Masami Hiramatsu <mhiramat@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	 Nathan Chancellor <nathan@kernel.org>,
	 Nick Desaulniers <ndesaulniers@google.com>,
	 Bill Wendling <morbo@google.com>,
	Justin Stitt <justinstitt@google.com>,
	 Puranjay Mohan <puranjay@kernel.org>
Cc: Palmer Dabbelt <palmer@rivosinc.com>,
	linux-riscv@lists.infradead.org,  linux-kernel@vger.kernel.org,
	linux-trace-kernel@vger.kernel.org,  llvm@lists.linux.dev,
	Andy Chiu <andy.chiu@sifive.com>
Subject: [PATCH v2 6/6] riscv: ftrace: support PREEMPT
Date: Fri, 28 Jun 2024 19:47:49 +0800	[thread overview]
Message-ID: <20240628-dev-andyc-dyn-ftrace-v4-v2-6-1e5f4cb1f049@sifive.com> (raw)
In-Reply-To: <20240628-dev-andyc-dyn-ftrace-v4-v2-0-1e5f4cb1f049@sifive.com>

Now, we can safely enable dynamic ftrace with kernel preemption.

Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
---
 arch/riscv/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 55c70efbad0a..881ea466ff52 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -139,7 +139,7 @@ config RISCV
 	select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_GRAPH_RETVAL if HAVE_FUNCTION_GRAPH_TRACER
-	select HAVE_FUNCTION_TRACER if !XIP_KERNEL && !PREEMPTION
+	select HAVE_FUNCTION_TRACER if !XIP_KERNEL
 	select HAVE_EBPF_JIT if MMU
 	select HAVE_GUP_FAST if MMU
 	select HAVE_FUNCTION_ARG_ACCESS_API

-- 
2.43.0


  parent reply	other threads:[~2024-06-28 11:48 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-28 11:47 [PATCH v2 0/6] riscv: ftrace: atmoic patching and preempt improvements Andy Chiu
2024-06-28 11:47 ` [PATCH v2 1/6] riscv: ftrace: support fastcc in Clang for WITH_ARGS Andy Chiu
2024-08-13 11:09   ` Björn Töpel
2024-08-22  8:39     ` Andy Chiu
2024-06-28 11:47 ` [PATCH v2 2/6] riscv: ftrace: align patchable functions to 4 Byte boundary Andy Chiu
2024-08-13 11:11   ` Björn Töpel
2024-06-28 11:47 ` [PATCH v2 3/6] riscv: ftrace: prepare ftrace for atomic code patching Andy Chiu
2024-08-13 12:59   ` Björn Töpel
2024-08-14 12:57     ` Björn Töpel
2024-09-11 10:57       ` Andy Chiu
2024-09-11 14:37         ` Björn Töpel
2024-09-11 15:03           ` Tao Chiu
2024-09-11 17:16             ` Björn Töpel
2024-06-28 11:47 ` [PATCH v2 4/6] riscv: ftrace: do not use stop_machine to update code Andy Chiu
2024-06-28 11:47 ` [PATCH v2 5/6] riscv: vector: Support calling schedule() for preemptible Vector Andy Chiu
2024-06-28 11:47 ` Andy Chiu [this message]
2024-08-13 11:00 ` [PATCH v2 0/6] riscv: ftrace: atmoic patching and preempt improvements Björn Töpel

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