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[AMD Public Use] v1: Add function to wait for specific event/states from PMFW v2: Add mutex lock, simplify sequence Signed-off-by: Lijo Lazar
lijo.lazar@xxxxxxx --- drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h | 15 ++++++++++++++- drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 15 +++++++++++++++ 2 files changed, 29 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h index 2edb634bc1c6..5bd16d4fb00d 100644 --- a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h @@ -195,6 +195,11 @@ struct smu_user_dpm_profile { uint32_t clk_dependency; }; +enum smu_event_type { + + SMU_EVENT_RESET_COMPLETE = 0, +}; + #define SMU_TABLE_INIT(tables, table_id, s, a, d) \ do { \ tables[table_id].size = s; \ @@ -338,7 +343,6 @@ struct smu_power_context { struct smu_power_gate power_gate; }; - #define SMU_FEATURE_MAX (64) struct smu_feature { @@ -1167,6 +1171,12 @@ struct pptable_funcs { * @set_light_sbr: Set light sbr mode for the SMU. */ int (*set_light_sbr)(struct smu_context *smu, bool enable); + + /** + * @wait_for_event: Wait for events from SMU. + */ + int (*wait_for_event)(struct smu_context *smu, + enum smu_event_type event, uint64_t event_arg); }; typedef enum { @@ -1372,5 +1382,8 @@ int smu_gfx_state_change_set(struct smu_context *smu, uint32_t state); int smu_set_light_sbr(struct smu_context *smu, bool enable); +int smu_wait_for_event(struct amdgpu_device *adev, enum smu_event_type event, + uint64_t event_arg); + #endif #endif diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index 05f00900d10c..3d504038d101 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -3008,3 +3008,18 @@ static const struct amd_pm_funcs swsmu_pm_funcs = { .force_clock_level = smu_force_ppclk_levels, .print_clock_levels = smu_print_ppclk_levels, }; + +int smu_wait_for_event(struct amdgpu_device *adev, enum smu_event_type event, + uint64_t event_arg) +{ + int ret = -EINVAL; + struct smu_context *smu = &adev->smu; + + if (smu->ppt_funcs->wait_for_event) { + mutex_lock(&smu->mutex); + ret = smu->ppt_funcs->wait_for_event(smu, event, event_arg); + mutex_unlock(&smu->mutex); + } + + return ret; +} -- 2.17.1 |
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