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perf/x86/intel/cqm: Use proper data types

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'int' is really not a proper data type for an MSR. Use u32 to make it
clear that we are dealing with a 32-bit unsigned hardware value.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Matt Fleming <matt.fleming@intel.com>
Cc: Kanaka Juvva <kanaka.d.juvva@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Cc: Will Auld <will.auld@intel.com>
Link: http://lkml.kernel.org/r/20150518235149.919350144@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Thomas Gleixner 2015-05-19 00:00:51 +00:00 committed by Ingo Molnar
parent f4d9757ca6
commit b3df4ec442
2 changed files with 3 additions and 3 deletions
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4
arch/x86/kernel/cpu/perf_event_intel_cqm.c
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@ -18,7 +18,7 @@ static unsigned int cqm_l3_scale; /* supposedly cacheline size */
struct intel_cqm_state { struct intel_cqm_state {
raw_spinlock_t lock; raw_spinlock_t lock;
int rmid; u32 rmid;
int cnt; int cnt;
}; };
@ -962,7 +962,7 @@ static u64 intel_cqm_event_count(struct perf_event *event)
static void intel_cqm_event_start(struct perf_event *event, int mode) static void intel_cqm_event_start(struct perf_event *event, int mode)
{ {
struct intel_cqm_state *state = this_cpu_ptr(&cqm_state); struct intel_cqm_state *state = this_cpu_ptr(&cqm_state);
unsigned int rmid = event->hw.cqm_rmid; u32 rmid = event->hw.cqm_rmid;
unsigned long flags; unsigned long flags;
if (!(event->hw.cqm_state & PERF_HES_STOPPED)) if (!(event->hw.cqm_state & PERF_HES_STOPPED))

2
include/linux/perf_event.h
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@ -120,7 +120,7 @@ struct hw_perf_event {
}; };
struct { /* intel_cqm */ struct { /* intel_cqm */
int cqm_state; int cqm_state;
int cqm_rmid; u32 cqm_rmid;
struct list_head cqm_events_entry; struct list_head cqm_events_entry;
struct list_head cqm_groups_entry; struct list_head cqm_groups_entry;
struct list_head cqm_group_entry; struct list_head cqm_group_entry;