diff options
| author | Tamas Zsoldos <tamas.zsoldos@arm.com> | 2022-07-05 17:59:35 +0300 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2022-10-31 13:32:46 +0300 |
| commit | 3c728e079d83f581a1f8b7755f6e26087b15c4fb (patch) | |
| tree | 720137b9354f70a4fdfe91bec1bf1516b48194d6 /include | |
| parent | 30a0b95b1335e12efef89dd78518ed3e4a71a763 (diff) | |
| download | linux-3c728e079d83f581a1f8b7755f6e26087b15c4fb.tar.xz | |
coresight: etm4x: add CPU hotplug support for probing
etm4x devices cannot be successfully probed when their CPU is offline.
For example, when booting with maxcpus=n, ETM probing will fail on
CPUs >n, and the probing won't be reattempted once the CPUs come
online. This will leave those CPUs unable to make use of ETM.
This change adds a mechanism to delay the probing if the corresponding
CPU is offline, and to try it again when the CPU comes online.
Signed-off-by: Tamas Zsoldos <tamas.zsoldos@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20220705145935.24679-1-tamas.zsoldos@arm.com
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions