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

fix #29130534

commit bc88a2fe216a51e8ab46d61f89d0c1b5a400470e upstream.

Backport summary: Backport to kernel 4.19.57 for ICX uncore support.

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: NKan Liang <kan.liang@linux.intel.com>
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1584470314-46657-1-git-send-email-kan.liang@linux.intel.comSigned-off-by: NYunying Sun <yunying.sun@intel.com>
Signed-off-by: NPeng Wang <rocking@linux.alibaba.com>
Reviewed-by: NArtie Ding <artie.ding@linux.alibaba.com>

arch/x86/events/intel/uncore.h

@@ -147,6 +147,7 @@ struct freerunning_counters {
 	unsigned int box_offset;
 	unsigned int num_counters;
 	unsigned int bits;
+	unsigned *box_offsets;
 };
 
 struct pci2phy_map {
@@ -303,7 +304,9 @@ 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