Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amd/pm: Add function to wait for smu events
v1: Add function to wait for specific event/states from PMFW
v2: Add mutex lock, simplify sequence
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by
Lijo Lazar
and committed by
Alex Deucher
6d77dd9f
e42569d0
+29
-1
+14
-1
drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
+14
-1
drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
···
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uint32_t clk_dependency;
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};
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enum smu_event_type {
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SMU_EVENT_RESET_COMPLETE = 0,
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};
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#define SMU_TABLE_INIT(tables, table_id, s, a, d) \
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do { \
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tables[table_id].size = s; \
···
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uint32_t power_context_size;
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struct smu_power_gate power_gate;
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};
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-
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#define SMU_FEATURE_MAX (64)
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struct smu_feature
···
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* @set_light_sbr: Set light sbr mode for the SMU.
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*/
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int (*set_light_sbr)(struct smu_context *smu, bool enable);
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/**
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* @wait_for_event: Wait for events from SMU.
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*/
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int (*wait_for_event)(struct smu_context *smu,
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enum smu_event_type event, uint64_t event_arg);
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};
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typedef enum {
···
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int smu_gfx_state_change_set(struct smu_context *smu, uint32_t state);
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int smu_set_light_sbr(struct smu_context *smu, bool enable);
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int smu_wait_for_event(struct amdgpu_device *adev, enum smu_event_type event,
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uint64_t event_arg);
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#endif
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#endif
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drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
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drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
···
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.display_disable_memory_clock_switch = smu_display_disable_memory_clock_switch,
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.get_max_sustainable_clocks_by_dc = smu_get_max_sustainable_clocks_by_dc,
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};
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int smu_wait_for_event(struct amdgpu_device *adev, enum smu_event_type event,
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uint64_t event_arg)
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{
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int ret = -EINVAL;
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struct smu_context *smu = &adev->smu;
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if (smu->ppt_funcs->wait_for_event) {
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mutex_lock(&smu->mutex);
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ret = smu->ppt_funcs->wait_for_event(smu, event, event_arg);
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mutex_unlock(&smu->mutex);
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}
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return ret;
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}