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performance counters: x86 support

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Implement performance counters for x86 Intel CPUs.

It's simplified right now: the PERFMON CPU feature is assumed,
which is available in Core2 and later Intel CPUs.

The design is flexible to be extended to more CPU types as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2008-12-03 10:39:53 +01:00
parent e7bc62b6b3
commit 241771ef01
21 changed files with 652 additions and 21 deletions
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arch/x86/kernel/syscall_table_32.S
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@@ -332,3 +332,4 @@ ENTRY(sys_call_table)
.long sys_dup3 /* 330 */
.long sys_pipe2
.long sys_inotify_init1
.long sys_perf_counter_open