From: Andi Kleen <andi@firstfloor.org>
To: x86@kernel.org
Cc: rostedt@goodmis.org, peterz@infradead.org,
linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 4/4] perf, x86: Remove old MSR perf tracing code
Date: Tue, 20 Oct 2015 11:40:46 -0700 [thread overview]
Message-ID: <1445366446-17668-5-git-send-email-andi@firstfloor.org> (raw)
In-Reply-To: <1445366446-17668-1-git-send-email-andi@firstfloor.org>
From: Andi Kleen <ak@linux.intel.com>
Now that we have generic MSR trace points we can remove the old
hackish perf MSR read tracing code.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
arch/x86/kernel/cpu/perf_event.h | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 4ae66e3..8218659 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -14,17 +14,7 @@
#include <linux/perf_event.h>
-#if 0
-#undef wrmsrl
-#define wrmsrl(msr, val) \
-do { \
- unsigned int _msr = (msr); \
- u64 _val = (val); \
- trace_printk("wrmsrl(%x, %Lx)\n", (unsigned int)(_msr), \
- (unsigned long long)(_val)); \
- native_write_msr((_msr), (u32)(_val), (u32)(_val >> 32)); \
-} while (0)
-#endif
+/* To enable MSR tracing please use the generic trace points. */
/*
* | NHM/WSM | SNB |
--
2.4.3
next prev parent reply other threads:[~2015-10-20 18:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-20 18:40 Adding MSR trace points, new edition Andi Kleen
2015-10-20 18:40 ` [PATCH 1/4] x86: Don't include asm/processor.h into asm/atomic.h Andi Kleen
2015-10-20 18:40 ` [PATCH 2/4] tracepoints: Move struct tracepoint to new tracepoint-defs.h header Andi Kleen
2015-10-20 18:40 ` [PATCH 3/4] x86: Add trace point for MSR accesses Andi Kleen
2015-10-20 19:39 ` Steven Rostedt
2015-10-20 18:40 ` Andi Kleen [this message]
-- strict thread matches above, loose matches on Subject: below --
2015-10-21 20:14 Adding MSR trace points, new edition Andi Kleen
2015-10-21 20:14 ` [PATCH 4/4] perf, x86: Remove old MSR perf tracing code Andi Kleen
2015-12-02 1:00 [PATCH 1/4] x86: Don't include asm/processor.h into asm/atomic.h Andi Kleen
2015-12-02 1:01 ` [PATCH 4/4] perf, x86: Remove old MSR perf tracing code Andi Kleen
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