linux-trace-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
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 8/8] riscv: ftrace: support PREEMPT
Date: Thu, 13 Jun 2024 15:11:13 +0800	[thread overview]
Message-ID: <20240613-dev-andyc-dyn-ftrace-v4-v1-8-1a538e12c01e@sifive.com> (raw)
In-Reply-To: <20240613-dev-andyc-dyn-ftrace-v4-v1-0-1a538e12c01e@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 80b8d48e1e46..c1493ee1b8cd 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -133,7 +133,7 @@ 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:[~2024-06-13  7:33 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-13  7:11 [PATCH 0/8] riscv: ftrace: atmoic patching and preempt improvements Andy Chiu
2024-06-13  7:11 ` [PATCH 1/8] riscv: stacktrace: convert arch_stack_walk() to noinstr Andy Chiu
2024-06-18  9:55   ` Alexandre Ghiti
2024-06-25 15:45     ` Palmer Dabbelt
2024-06-13  7:11 ` [PATCH 2/8] tracing: do not trace kernel_text_address() Andy Chiu
2024-06-13 13:32   ` Steven Rostedt
2024-06-17  2:10     ` Andy Chiu
2024-06-13  7:11 ` [PATCH 3/8] riscv: ftrace: support fastcc in Clang for WITH_ARGS Andy Chiu
2024-06-13 22:36   ` Nathan Chancellor
2024-06-13  7:11 ` [PATCH 4/8] riscv: ftrace: align patchable functions to 4 Byte boundary Andy Chiu
2024-06-13 19:09   ` Nathan Chancellor
2024-06-17  2:38     ` Andy Chiu
2024-06-17  3:13       ` Andy Chiu
2024-06-17 16:52       ` Nathan Chancellor
2024-06-13  7:11 ` [PATCH 5/8] riscv: ftrace: prepare ftrace for atomic code patching Andy Chiu
2024-06-13  7:11 ` [PATCH 6/8] riscv: ftrace: do not use stop_machine to update code Andy Chiu
2024-06-13  7:11 ` [PATCH 7/8] riscv: vector: Support calling schedule() for preemptible Vector Andy Chiu
2024-06-13  7:11 ` Andy Chiu [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240613-dev-andyc-dyn-ftrace-v4-v1-8-1a538e12c01e@sifive.com \
    --to=andy.chiu@sifive.com \
    --cc=alexghiti@rivosinc.com \
    --cc=aou@eecs.berkeley.edu \
    --cc=justinstitt@google.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-riscv@lists.infradead.org \
    --cc=linux-trace-kernel@vger.kernel.org \
    --cc=llvm@lists.linux.dev \
    --cc=mark.rutland@arm.com \
    --cc=mhiramat@kernel.org \
    --cc=morbo@google.com \
    --cc=nathan@kernel.org \
    --cc=ndesaulniers@google.com \
    --cc=palmer@dabbelt.com \
    --cc=palmer@rivosinc.com \
    --cc=paul.walmsley@sifive.com \
    --cc=puranjay@kernel.org \
    --cc=rostedt@goodmis.org \
    --cc=zong.li@sifive.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).