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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-05 02:15:45 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-05 02:15:45 +0200
commitce4747963252a30613ebf1c1df3d83b9526a342e (patch)
tree6c61d1b1045a72965006324ae3805280be296e53 /include/trace
parentMerge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... (diff)
parentx86/mm: Set TLB flush tunable to sane value (33) (diff)
downloadlinux-ce4747963252a30613ebf1c1df3d83b9526a342e.tar.xz
linux-ce4747963252a30613ebf1c1df3d83b9526a342e.zip
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm changes from Ingo Molnar: "The main change in this cycle is the rework of the TLB range flushing code, to simplify, fix and consolidate the code. By Dave Hansen" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Set TLB flush tunable to sane value (33) x86/mm: New tunable for single vs full TLB flush x86/mm: Add tracepoints for TLB flushes x86/mm: Unify remote INVLPG code x86/mm: Fix missed global TLB flush stat x86/mm: Rip out complicated, out-of-date, buggy TLB flushing x86/mm: Clean up the TLB flushing code x86/smep: Be more informative when signalling an SMEP fault
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/tlb.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
new file mode 100644
index 000000000000..13391d288107
--- /dev/null
+++ b/include/trace/events/tlb.h
@@ -0,0 +1,40 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM tlb
+
+#if !defined(_TRACE_TLB_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_TLB_H
+
+#include <linux/mm_types.h>
+#include <linux/tracepoint.h>
+
+#define TLB_FLUSH_REASON \
+ { TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" }, \
+ { TLB_REMOTE_SHOOTDOWN, "remote shootdown" }, \
+ { TLB_LOCAL_SHOOTDOWN, "local shootdown" }, \
+ { TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" }
+
+TRACE_EVENT(tlb_flush,
+
+ TP_PROTO(int reason, unsigned long pages),
+ TP_ARGS(reason, pages),
+
+ TP_STRUCT__entry(
+ __field( int, reason)
+ __field(unsigned long, pages)
+ ),
+
+ TP_fast_assign(
+ __entry->reason = reason;
+ __entry->pages = pages;
+ ),
+
+ TP_printk("pages:%ld reason:%s (%d)",
+ __entry->pages,
+ __print_symbolic(__entry->reason, TLB_FLUSH_REASON),
+ __entry->reason)
+);
+
+#endif /* _TRACE_TLB_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>