drm/amdgpu: Fix oops when pp_funcs->switch_power_profile is unset

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commit 919a52fc4c upstream.

On Vega20 and other pre-production GPUs, powerplay is not enabled yet.
Check for NULL pointers before calling pp_funcs function pointers.

Also affects Kaveri.

CC: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Felix Kuehling 2018-07-20 11:37:25 -04:00 • committed by Greg Kroah-Hartman

parent d9ea911e2b

commit e3290a5e24

1 changed files with 5 additions and 2 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c

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