The following commit has been merged into the perf/core branch of tip:
Commit-ID: bc88a2fe216a51e8ab46d61f89d0c1b5a400470e
Gitweb: https://git.kernel.org/tip/bc88a2fe216a51e8ab46d61f89d0c1b5a400470e
Author: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
AuthorDate: Tue, 17 Mar 2020 11:38:32 -07:00
Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Fri, 20 Mar 2020 13:06:23 +01:00
perf/x86/intel/uncore: Add box_offsets for free-running counters
The offset between uncore boxes of free-running counters varies, e.g.
IIO free-running counters on Ice Lake server.
Add box_offsets, an array of offsets between adjacent uncore boxes.
Signed-off-by: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/1584470314-46657-1-git-send-email-kan.liang@xxxxxxxxxxxxxxx
---
arch/x86/events/intel/uncore.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
index 1204dcc..b30429f 100644
--- a/arch/x86/events/intel/uncore.h
+++ b/arch/x86/events/intel/uncore.h
@@ -154,6 +154,7 @@ struct freerunning_counters {
unsigned int box_offset;
unsigned int num_counters;
unsigned int bits;
+ unsigned *box_offsets;
};
struct pci2phy_map {
@@ -310,7 +311,9 @@ unsigned int uncore_freerunning_counter(struct intel_uncore_box *box,
return pmu->type->freerunning[type].counter_base +
pmu->type->freerunning[type].counter_offset * idx +
- pmu->type->freerunning[type].box_offset * pmu->pmu_idx;
+ (pmu->type->freerunning[type].box_offsets ?
+ pmu->type->freerunning[type].box_offsets[pmu->pmu_idx] :
+ pmu->type->freerunning[type].box_offset * pmu->pmu_idx);
}
static inline
|