Kun Liu
cde7a70bbb
drm/amd/pm: fix BUG: scheduling while atomic
commit 2a238b09bfd04e8155a7a323364bce1c38b28c0f upstream.
atomic scheduling will be triggered in interrupt handler for
AC/DC mode switch as following backtrace.
Call Trace:
<IRQ>
dump_stack_lvl
__schedule_bug
__schedule
schedule
schedule_preempt_disabled
__mutex_lock
smu_cmn_send_smc_msg_with_param
smu_v13_0_irq_process
amdgpu_irq_dispatch
amdgpu_ih_process
amdgpu_irq_handler
__handle_irq_event_percpu
handle_irq_event
handle_edge_irq
__common_interrupt
common_interrupt
</IRQ>
<TASK>
asm_common_interrupt
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Kun Liu <Kun.Liu2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 03cc84b102d1a832e8dfc59344346dedcebcdf42)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>