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linux/arch/x86/oprofile/op_counter.h

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/**
* @file op_counter.h
*
* @remark Copyright 2002 OProfile authors
* @remark Read the file COPYING
*
* @author John Levon
*/
oprofile: fixing whitespaces in arch/x86/oprofile/* Signed-off-by: Robert Richter <robert.richter@amd.com>
2008-10-16 13:01:40 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#ifndef OP_COUNTER_H
#define OP_COUNTER_H
oprofile: fixing whitespaces in arch/x86/oprofile/* Signed-off-by: Robert Richter <robert.richter@amd.com>
2008-10-16 13:01:40 +00:00
oprofile: Implement performance counter multiplexing The number of hardware counters is limited. The multiplexing feature enables OProfile to gather more events than counters are provided by the hardware. This is realized by switching between events at an user specified time interval. A new file (/dev/oprofile/time_slice) is added for the user to specify the timer interval in ms. If the number of events to profile is higher than the number of hardware counters available, the patch will schedule a work queue that switches the event counter and re-writes the different sets of values into it. The switching mechanism needs to be implemented for each architecture to support multiplexing. This patch only implements AMD CPU support, but multiplexing can be easily extended for other models and architectures. There are follow-on patches that rework parts of this patch. Signed-off-by: Jason Yeh <jason.yeh@amd.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
2009-07-08 11:49:38 +00:00
#define OP_MAX_COUNTER 32
oprofile: fixing whitespaces in arch/x86/oprofile/* Signed-off-by: Robert Richter <robert.richter@amd.com>
2008-10-16 13:01:40 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/* Per-perfctr configuration as set via
* oprofilefs.
*/
struct op_counter_config {
oprofile: fixing whitespaces in arch/x86/oprofile/* Signed-off-by: Robert Richter <robert.richter@amd.com>
2008-10-16 13:01:40 +00:00
unsigned long count;
unsigned long enabled;
unsigned long event;
unsigned long kernel;
unsigned long user;
unsigned long unit_mask;
oprofile, x86: Allow setting EDGE/INV/CMASK for counter events For some performance events it's useful to set the EDGE and INV bits and the CMASK mask in the counter control register. The list of predefined events Intel releases for each CPU has some events which require these settings to get more "natural" to use higher level events. oprofile currently doesn't allow this. This patch adds new extra configuration fields for them, so that they can be specified in oprofilefs. An updated oprofile daemon can then make use of this to set them. v2: Write back masked extra value to variable. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
2011-03-16 19:44:33 +00:00
unsigned long extra;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
};
extern struct op_counter_config counter_config[];
#endif /* OP_COUNTER_H */
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