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| author |   Nathan Lynch <nathanl@linux.ibm.com> | 2020-12-07 15:51:43 -0600 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-12-08 21:40:56 +1100 |
| commit | d9213319b84ee8393475c38361c84151d5c33415 (patch) | |
| tree | 048e774eca2e37e27b0c387b86f2edad8ea28f89 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | powerpc/pseries/mobility: use rtas_activate_firmware() on resume (diff) | |
| download | linux-dev-d9213319b84ee8393475c38361c84151d5c33415.tar.xz linux-dev-d9213319b84ee8393475c38361c84151d5c33415.zip | |
powerpc/pseries/mobility: extract VASI session polling logic
The behavior of rtas_ibm_suspend_me_unsafe() is to return -EAGAIN to
the caller until the specified VASI suspend session state makes the
transition from H_VASI_ENABLED to H_VASI_SUSPENDING. In the interest
of separating concerns to prepare for a new implementation of the
join/suspend sequence, extract VASI session polling logic into a
couple of local functions. Waiting for the session state to reach
H_VASI_SUSPENDING before calling rtas_ibm_suspend_me_unsafe() ensures
that we will never get an EAGAIN result necessitating a retry. No
user-visible change in behavior is intended.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201207215200.1785968-12-nathanl@linux.ibm.com
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions