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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-20 11:29:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-20 11:29:32 -0700
commit12e24f34cb0d55efd08c18b2112507d4bf498008 (patch)
tree83b07be17b8ef45f42360a3b9159b3aaae3fbad4 /arch/powerpc/include
parent1eb51c33b21ffa3fceb634d1d6bcd6488c79bc26 (diff)
parenteadc84cc01e04f9f74ec2de0c9355be035c7b396 (diff)
Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (49 commits) perfcounter: Handle some IO return values perf_counter: Push perf_sample_data through the swcounter code perf_counter tools: Define and use our own u64, s64 etc. definitions perf_counter: Close race in perf_lock_task_context() perf_counter, x86: Improve interactions with fast-gup perf_counter: Simplify and fix task migration counting perf_counter tools: Add a data file header perf_counter: Update userspace callchain sampling uses perf_counter: Make callchain samples extensible perf report: Filter to parent set by default perf_counter tools: Handle lost events perf_counter: Add event overlow handling fs: Provide empty .set_page_dirty() aop for anon inodes perf_counter: tools: Makefile tweaks for 64-bit powerpc perf_counter: powerpc: Add processor back-end for MPC7450 family perf_counter: powerpc: Make powerpc perf_counter code safe for 32-bit kernels perf_counter: powerpc: Change how processor-specific back-ends get selected perf_counter: powerpc: Use unsigned long for register and constraint values perf_counter: powerpc: Enable use of software counters on 32-bit powerpc perf_counter tools: Add and use isprint() ...
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r--arch/powerpc/include/asm/hw_irq.h6
-rw-r--r--arch/powerpc/include/asm/perf_counter.h52
2 files changed, 35 insertions, 23 deletions
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index b7f8f4a87cc0..867ab8ed69b3 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -131,6 +131,8 @@ static inline int irqs_disabled_flags(unsigned long flags)
struct irq_chip;
#ifdef CONFIG_PERF_COUNTERS
+
+#ifdef CONFIG_PPC64
static inline unsigned long test_perf_counter_pending(void)
{
unsigned long x;
@@ -154,15 +156,15 @@ static inline void clear_perf_counter_pending(void)
"r" (0),
"i" (offsetof(struct paca_struct, perf_counter_pending)));
}
+#endif /* CONFIG_PPC64 */
-#else
+#else /* CONFIG_PERF_COUNTERS */
static inline unsigned long test_perf_counter_pending(void)
{
return 0;
}
-static inline void set_perf_counter_pending(void) {}
static inline void clear_perf_counter_pending(void) {}
#endif /* CONFIG_PERF_COUNTERS */
diff --git a/arch/powerpc/include/asm/perf_counter.h b/arch/powerpc/include/asm/perf_counter.h
index cc7c887705b8..8ccd4e155768 100644
--- a/arch/powerpc/include/asm/perf_counter.h
+++ b/arch/powerpc/include/asm/perf_counter.h
@@ -10,6 +10,8 @@
*/
#include <linux/types.h>
+#include <asm/hw_irq.h>
+
#define MAX_HWCOUNTERS 8
#define MAX_EVENT_ALTERNATIVES 8
#define MAX_LIMITED_HWCOUNTERS 2
@@ -19,27 +21,27 @@
* describe the PMU on a particular POWER-family CPU.
*/
struct power_pmu {
- int n_counter;
- int max_alternatives;
- u64 add_fields;
- u64 test_adder;
- int (*compute_mmcr)(u64 events[], int n_ev,
- unsigned int hwc[], u64 mmcr[]);
- int (*get_constraint)(u64 event, u64 *mskp, u64 *valp);
- int (*get_alternatives)(u64 event, unsigned int flags,
- u64 alt[]);
- void (*disable_pmc)(unsigned int pmc, u64 mmcr[]);
- int (*limited_pmc_event)(u64 event);
- u32 flags;
- int n_generic;
- int *generic_events;
- int (*cache_events)[PERF_COUNT_HW_CACHE_MAX]
+ const char *name;
+ int n_counter;
+ int max_alternatives;
+ unsigned long add_fields;
+ unsigned long test_adder;
+ int (*compute_mmcr)(u64 events[], int n_ev,
+ unsigned int hwc[], unsigned long mmcr[]);
+ int (*get_constraint)(u64 event, unsigned long *mskp,
+ unsigned long *valp);
+ int (*get_alternatives)(u64 event, unsigned int flags,
+ u64 alt[]);
+ void (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]);
+ int (*limited_pmc_event)(u64 event);
+ u32 flags;
+ int n_generic;
+ int *generic_events;
+ int (*cache_events)[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_OP_MAX]
[PERF_COUNT_HW_CACHE_RESULT_MAX];
};
-extern struct power_pmu *ppmu;
-
/*
* Values for power_pmu.flags
*/
@@ -53,15 +55,23 @@ extern struct power_pmu *ppmu;
#define PPMU_LIMITED_PMC_REQD 2 /* have to put this on a limited PMC */
#define PPMU_ONLY_COUNT_RUN 4 /* only counting in run state */
+extern int register_power_pmu(struct power_pmu *);
+
struct pt_regs;
extern unsigned long perf_misc_flags(struct pt_regs *regs);
-#define perf_misc_flags(regs) perf_misc_flags(regs)
-
extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
/*
- * The power_pmu.get_constraint function returns a 64-bit value and
- * a 64-bit mask that express the constraints between this event and
+ * Only override the default definitions in include/linux/perf_counter.h
+ * if we have hardware PMU support.
+ */
+#ifdef CONFIG_PPC_PERF_CTRS
+#define perf_misc_flags(regs) perf_misc_flags(regs)
+#endif
+
+/*
+ * The power_pmu.get_constraint function returns a 32/64-bit value and
+ * a 32/64-bit mask that express the constraints between this event and
* other events.
*
* The value and mask are divided up into (non-overlapping) bitfields