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Commit ea870e44 authored by Rex Zhu's avatar Rex Zhu Committed by Alex Deucher
Browse files

drm/amd/pp: Export notify_smu_enable_pwe to display 



Display can notify smu to enable pwe after gpu suspend.
It is used in case when display resumes from S3 and wants to start
audio driver by enabling pwe

Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarRex Zhu <Rex.Zhu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 289278cb

drivers/gpu/drm/amd/include/kgd_pp_interface.h

+4 −3
Original line number Diff line number Diff line
@@ -241,6 +241,9 @@ struct amd_pm_funcs { 
	int (*set_clockgating_by_smu)(void *handle, uint32_t msg_id);

	int (*set_power_limit)(void *handle, uint32_t n);

	int (*get_power_limit)(void *handle, uint32_t *limit, bool default_limit);

	int (*get_power_profile_mode)(void *handle, char *buf);

	int (*set_power_profile_mode)(void *handle, long *input, uint32_t size);

	int (*odn_edit_dpm_table)(void *handle, uint32_t type, long *input, uint32_t size);

/* export to DC */

	u32 (*get_sclk)(void *handle, bool low);

	u32 (*get_mclk)(void *handle, bool low);
@@ -265,9 +268,7 @@ struct amd_pm_funcs { 
				struct pp_display_clock_request *clock);

	int (*get_display_mode_validation_clocks)(void *handle,

		struct amd_pp_simple_clock_info *clocks);

	int (*get_power_profile_mode)(void *handle, char *buf);

	int (*set_power_profile_mode)(void *handle, long *input, uint32_t size);

	int (*odn_edit_dpm_table)(void *handle, uint32_t type, long *input, uint32_t size);

	int (*notify_smu_enable_pwe)(void *handle);

};



#endif

drivers/gpu/drm/amd/powerplay/amd_powerplay.c

+20 −0
Original line number Diff line number Diff line
@@ -1201,6 +1201,25 @@ static int pp_set_powergating_by_smu(void *handle, 
	return ret;

}



static int pp_notify_smu_enable_pwe(void *handle)

{

	struct pp_hwmgr *hwmgr = handle;



	if (!hwmgr || !hwmgr->pm_en)

		return -EINVAL;;



	if (hwmgr->hwmgr_func->smus_notify_pwe == NULL) {

		pr_info("%s was not implemented.\n", __func__);

		return -EINVAL;;

	}



	mutex_lock(&hwmgr->smu_lock);

	hwmgr->hwmgr_func->smus_notify_pwe(hwmgr);

	mutex_unlock(&hwmgr->smu_lock);



	return 0;

}



static const struct amd_pm_funcs pp_dpm_funcs = {

	.load_firmware = pp_dpm_load_fw,

	.wait_for_fw_loading_complete = pp_dpm_fw_loading_complete,
@@ -1244,4 +1263,5 @@ static const struct amd_pm_funcs pp_dpm_funcs = { 
	.set_watermarks_for_clocks_ranges = pp_set_watermarks_for_clocks_ranges,

	.display_clock_voltage_request = pp_display_clock_voltage_request,

	.get_display_mode_validation_clocks = pp_get_display_mode_validation_clocks,

	.notify_smu_enable_pwe = pp_notify_smu_enable_pwe,

};