From: Peter Zijlstra <peterz@infradead.org>
To: Dan Raymond <raymod2@gmail.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org, mingo@redhat.com,
bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com
Subject: Re: [PATCH v2] arch/x86: port I/O tracing on x86
Date: Thu, 28 Sep 2023 10:10:52 +0200 [thread overview]
Message-ID: <20230928081052.GG9829@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <e08a3073-574c-c9fa-fc63-df33920165b9@gmail.com>
On Wed, Sep 27, 2023 at 09:52:11AM -0600, Dan Raymond wrote:
> #define BUILDIO(bwl, bw, type) \
> static inline void __out##bwl(type value, u16 port) \
> { \
> asm volatile("out" #bwl " %" #bw "0, %w1" \
> : : "a"(value), "Nd"(port)); \
> + if (_tracepoint_enabled(portio_write)) \
> + do_trace_portio_write(value, port, #bwl[0]); \
> } \
> \
> static inline type __in##bwl(u16 port) \
> @@ -16,6 +39,8 @@ static inline type __in##bwl(u16 port) \
> type value; \
> asm volatile("in" #bwl " %w1, %" #bw "0" \
> : "=a"(value) : "Nd"(port)); \
> + if (_tracepoint_enabled(portio_read)) \
> + do_trace_portio_read(value, port, #bwl[0]); \
> return value; \
> }
NACK
prev parent reply other threads:[~2023-09-28 8:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-27 15:52 [PATCH v2] arch/x86: port I/O tracing on x86 Dan Raymond
2023-09-28 8:10 ` Peter Zijlstra [this message]
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