f7d74ce32f
It is useful to let the user know about the hybrid topology. Add the HYBRID_TOPOLOGY feature in header to indicate the core CPUs and the atom CPUs. With this patch a perf.data generated on a hybrid platform reports the hybrid CPU list: root@otcpl-adl-s-2:~# perf report --header-only -I ... # hybrid cpu system: # cpu_core cpu list : 0-15 # cpu_atom cpu list : 16-23 For a perf.data generated on a non-hybrid platform, reports a message that HYBRID_TOPOLOGY is missing: root@kbl-ppc:~# perf report --header-only -I ... # missing features: TRACING_DATA BRANCH_STACK GROUP_DESC AUXTRACE STAT CLOCKID DIR_FORMAT COMPRESSED CLOCK_DATA HYBRID_TOPOLOGY Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@intel.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20210514122948.9472-2-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
48 lines
921 B
C
48 lines
921 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_CPUTOPO_H
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#define __PERF_CPUTOPO_H
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#include <linux/types.h>
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struct cpu_topology {
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u32 core_sib;
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u32 die_sib;
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u32 thread_sib;
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char **core_siblings;
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char **die_siblings;
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char **thread_siblings;
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};
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struct numa_topology_node {
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char *cpus;
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u32 node;
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u64 mem_total;
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u64 mem_free;
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};
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struct numa_topology {
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u32 nr;
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struct numa_topology_node nodes[];
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};
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struct hybrid_topology_node {
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char *pmu_name;
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char *cpus;
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};
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struct hybrid_topology {
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u32 nr;
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struct hybrid_topology_node nodes[];
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};
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struct cpu_topology *cpu_topology__new(void);
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void cpu_topology__delete(struct cpu_topology *tp);
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struct numa_topology *numa_topology__new(void);
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void numa_topology__delete(struct numa_topology *tp);
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struct hybrid_topology *hybrid_topology__new(void);
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void hybrid_topology__delete(struct hybrid_topology *tp);
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#endif /* __PERF_CPUTOPO_H */
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