Kan Liang 5fa695e7da perf top: Use evsel's cpus to replace user_requested_cpus ... perf top errors out on a hybrid machine $perf top Error: The cycles:P event is not supported. The perf top expects that the "cycles" is collected on all CPUs in the system. But for hybrid there is no single "cycles" event which can cover all CPUs. Perf has to split it into two cycles events, e.g., cpu_core/cycles/ and cpu_atom/cycles/. Each event has its own CPU mask. If a event is opened on the unsupported CPU. The open fails. That's the reason of the above error out. Perf should only open the cycles event on the corresponding CPU. The commit ef91871c96 ("perf evlist: Propagate user CPU maps intersecting core PMU maps") intersect the requested CPU map with the CPU map of the PMU. Use the evsel's cpus to replace user_requested_cpus. The evlist's threads are also propagated to the evsel's threads in __perf_evlist__propagate_maps(). For a system-wide event, perf appends a dummy event and assign it to the evsel's threads. For a per-thread event, the evlist's thread_map is assigned to the evsel's threads. The same as the other tools, e.g., perf record, using the evsel's threads when opening an event. Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Hector Martin <marcan@marcan.st> Cc: Marc Zyngier <maz@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Closes: https://lore.kernel.org/linux-perf-users/ZXNnDrGKXbEELMXV@kernel.org/ Link: https://lore.kernel.org/r/20231214144612.1092028-1-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2023-12-14 19:09:03 -03:00
..
accounting
arch	tools arch x86: Sync the msr-index.h copy with the kernel sources	2023-09-13 08:53:37 -03:00
bootconfig
bpf	bpftool: Fix build warnings with -Wtype-limits	2023-08-30 08:39:00 +02:00
build	perf cs-etm: Bump minimum OpenCSD version to ensure a bugfix is present	2023-11-27 10:21:27 -03:00
certs
cgroup	iocost_monitor: improve it by adding iocg wait_ms	2023-08-08 15:43:03 -06:00
counter	tools/counter: Makefile: Replace rmdir by rm to avoid make,clean failure	2023-07-24 10:29:52 -04:00
crypto/ccp	crypto: ccp - Add unit tests for dynamic boost control	2023-07-20 22:15:12 +12:00
debugging
edid
firewire
firmware
gpio
hv	vmbus_testing: fix wrong python syntax for integer value comparison	2023-07-23 23:19:30 +00:00
iio	tools: iio: iio_generic_buffer: Fix some integer type and calculation	2023-07-29 15:59:20 +01:00
include	tools: Disable __packed attribute compiler warning due to -Werror=attributes	2023-11-09 16:34:09 -03:00
kvm/kvm_stat
laptop
leds
lib	libperf cpumap: Add for_each_cpu() that skips the "any CPU" case	2023-12-12 14:55:13 -03:00
memory-model
mm	tools/mm: fix undefined reference to pthread_once	2023-09-05 10:13:45 -07:00
net/ynl	tools/net/ynl: Add support for create flags	2023-08-27 17:17:10 -07:00
objtool	objtool/x86: Fixup frame-pointer vs rethunk	2023-08-17 00:44:35 +02:00
pci
pcmcia
perf	perf top: Use evsel's cpus to replace user_requested_cpus	2023-12-14 19:09:03 -03:00
power	More power management updates for 6.6-rc1	2023-09-04 15:21:55 -07:00
rcu
scripts	tools/build: Fix -s detection code in tools/scripts/Makefile.include	2023-10-18 15:29:47 -07:00
spi
testing	XArray/IDA updates for 6.6	2023-09-08 21:46:26 -07:00
thermal
time
tracing
usb
verification
virtio
wmi
workqueue	workqueue: Implement non-strict affinity scope for unbound workqueues	2023-08-07 15:57:25 -10:00
Makefile