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perf/x86/intel/uncore: Add box_offsets for free-running counters

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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@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1584470314-46657-1-git-send-email-kan.liang@linux.intel.com
This commit is contained in:
Kan Liang 2020-03-17 11:38:32 -07:00 committed by Peter Zijlstra
parent a6763625ae
commit bc88a2fe21
1 changed files with 4 additions and 1 deletions
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5
arch/x86/events/intel/uncore.h
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@ -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