perf: Increase MAX_NR_CPUS to 4096

JIRA: https://issues.redhat.com/browse/RHEL-73893

upstream
========
commit 9a1e106
Author: Kyle Meyer <kyle.meyer@hpe.com>
Date: Thu Dec 5 20:40:28 2024 -0800

description
===========
Systems have surpassed 2048 CPUs. Increase MAX_NR_CPUS to 4096.

Bitmaps declared with MAX_NR_CPUS bits will increase from 256B to 512B,
cpus_runtime will increase from 81960B to 163880B, and max_entries will
increase from 8192B to 16384B.

    Reviewed-by: Ian Rogers <irogers@google.com>
    Reviewed-by: Leo Yan <leo.yan@arm.com>
    Signed-off-by: Kyle Meyer <kyle.meyer@hpe.com>
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
    Cc: Ben Gainey <ben.gainey@arm.com>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: James Clark <james.clark@linaro.org>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Kan Liang <kan.liang@linux.intel.com>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Link: https://lore.kernel.org/r/20241206044035.1062032-2-irogers@google.com
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Signed-off-by: Michael Petlan <mpetlan@redhat.com>

Author: rfmvh

tools/lib/perf/include/internal/cpumap.h

@@ -22,7 +22,7 @@ DECLARE_RC_STRUCT(perf_cpu_map) {
 };
 
 #ifndef MAX_NR_CPUS
-#define MAX_NR_CPUS	2048
+#define MAX_NR_CPUS	4096
 #endif
 
 struct perf_cpu_map *perf_cpu_map__alloc(int nr_cpus);

tools/perf/perf.h

@@ -3,7 +3,7 @@
 #define _PERF_PERF_H
 
 #ifndef MAX_NR_CPUS
-#define MAX_NR_CPUS			2048
+#define MAX_NR_CPUS			4096
 #endif
 
 enum perf_affinity {

tools/perf/util/bpf_skel/kwork_top.bpf.c

@@ -18,7 +18,9 @@ enum kwork_class_type {
 };
 
 #define MAX_ENTRIES     102400
-#define MAX_NR_CPUS     2048
+#ifndef MAX_NR_CPUS
+#define MAX_NR_CPUS     4096
+#endif
 #define PF_KTHREAD      0x00200000
 #define MAX_COMMAND_LEN 16