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drm/amdgpu/smu: add metrics table lock 

commit 073d5eef9e upstream.

This table is used for lots of things, add it's own lock.

Bug: https://gitlab.freedesktop.org/drm/amd/issues/900
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Alex Deucher 2019-12-17 09:35:01 -05:00 committed by Greg Kroah-Hartman
parent 55ab031c0a
commit 7514bbe975
2 changed files with 2 additions and 0 deletions
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1
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
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@ -844,6 +844,7 @@ static int smu_sw_init(void *handle)
smu->smu_baco.platform_support = false;
mutex_init(&smu->sensor_lock);
mutex_init(&smu->metrics_lock);
smu->watermarks_bitmap = 0;
smu->power_profile_mode = PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT;

1
drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
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@ -345,6 +345,7 @@ struct smu_context
const struct pptable_funcs *ppt_funcs;
struct mutex mutex;
struct mutex sensor_lock;
struct mutex metrics_lock;
uint64_t pool_size;
struct smu_table_context smu_table;