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Commit 65f85e7d authored by Eric Huang's avatar Eric Huang Committed by Alex Deucher
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drm/amd/powerplay: add GFX per cu powergating support through SMU/powerplay 



Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Acked-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarEric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent bacec898

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

+14 −1
Original line number Diff line number Diff line
@@ -267,7 +267,20 @@ static int pp_set_clockgating_state(void *handle, 
static int pp_set_powergating_state(void *handle,

				    enum amd_powergating_state state)

{

	return 0;

	struct pp_hwmgr  *hwmgr;



	if (handle == NULL)

		return -EINVAL;



	hwmgr = ((struct pp_instance *)handle)->hwmgr;



	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||

			hwmgr->hwmgr_func->enable_per_cu_power_gating == NULL)

				return -EINVAL;



	/* Enable/disable GFX per cu powergating through SMU */

	return hwmgr->hwmgr_func->enable_per_cu_power_gating(hwmgr,

			state == AMD_PG_STATE_GATE ? true : false);

}



static int pp_suspend(void *handle)

drivers/gpu/drm/amd/powerplay/inc/hwmgr.h

+1 −0
Original line number Diff line number Diff line
@@ -337,6 +337,7 @@ struct pp_hwmgr_func { 
	int (*set_pp_table)(struct pp_hwmgr *hwmgr, const char *buf, size_t size);

	int (*force_clock_level)(struct pp_hwmgr *hwmgr, enum pp_clock_type type, int level);

	int (*print_clock_levels)(struct pp_hwmgr *hwmgr, enum pp_clock_type type, char *buf);

	int (*enable_per_cu_power_gating)(struct pp_hwmgr *hwmgr, bool enable);

};



struct pp_table_func {