diff options
| author |   Nathan Lynch <nathanl@linux.ibm.com> | 2020-12-07 15:51:54 -0600 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-12-08 21:41:01 +1100 |
| commit | 366fb13bf13b029c4d43bf19382f7aea69bfa4b7 (patch) | |
| tree | cd1a58a00d0a93f90458a275230c9b24e4c06cee | |
| parent | powerpc/rtas: remove rtas_suspend_cpu() (diff) | |
| download | linux-dev-366fb13bf13b029c4d43bf19382f7aea69bfa4b7.tar.xz linux-dev-366fb13bf13b029c4d43bf19382f7aea69bfa4b7.zip | |
powerpc/pseries/hibernation: switch to rtas_ibm_suspend_me()
rtas_suspend_last_cpu() and related code perform a lot of work that
isn't relevant to the hibernation workflow. All other CPUs are offline
when called so there is no need to place them in H_JOIN or prod them
on resume, nor is there need for retries or operations on shared
state.
Call the rtas_ibm_suspend_me() wrapper function directly from
pseries_suspend_enter() instead of using rtas_suspend_last_cpu().
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201207215200.1785968-23-nathanl@linux.ibm.com
| -rw-r--r-- | arch/powerpc/platforms/pseries/suspend.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c index 3315d698d5ab..703728cb95ec 100644 --- a/arch/powerpc/platforms/pseries/suspend.c +++ b/arch/powerpc/platforms/pseries/suspend.c @@ -76,11 +76,7 @@ static void pseries_suspend_enable_irqs(void) **/ static int pseries_suspend_enter(suspend_state_t state) { - int rc = rtas_suspend_last_cpu(&suspend_data); - - atomic_set(&suspending, 0); - atomic_set(&suspend_data.done, 1); - return rc; + return rtas_ibm_suspend_me(NULL); } /** |