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| author |   John Garry <john.garry@huawei.com> | 2019-12-13 21:54:15 +0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-02-12 10:36:51 -0300 |
| commit | df5a5f3cf24608457bb5e57297dd9f0d528be58f (patch) | |
| tree | 8405eaf8eb2a84ec3f71020106f69230c61f4015 /tools/include | |
| parent | tools headers UAPI: Sync drm/i915_drm.h with the kernel sources (diff) | |
| download | linux-dev-df5a5f3cf24608457bb5e57297dd9f0d528be58f.tar.xz linux-dev-df5a5f3cf24608457bb5e57297dd9f0d528be58f.zip | |
perf tools: Add arm64 version of get_cpuid()
Add an arm64 version of get_cpuid(), which is used for various annotation
and headers - for example, I now get the CPUID in "perf report --header",
as shown in this snippet:
# hostname : ubuntu
# os release : 5.5.0-rc1-dirty
# perf version : 5.5.rc1.gbf8a13dc9851
# arch : aarch64
# nrcpus online : 96
# nrcpus avail : 96
# cpuid : 0x00000000480fd010
Since much of the code to read the MIDR is already in get_cpuid_str(),
factor out this code.
Tester notes:
I tested this patch on my new ARM64 Kunpeng 920 server.
[root@node1 zsk]# ./perf --version
perf version 5.6.rc1.g2cdb955b7252
Both perf list and perf stat can work.
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxarm@huawei.com
Link: http://lore.kernel.org/lkml/1576245255-210926-1-git-send-email-john.garry@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/include')
0 files changed, 0 insertions, 0 deletions