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Commit e2a4cd69 authored by Huang Rui's avatar Huang Rui Committed by Alex Deucher
Browse files

drm/amdgpu: add get_clockgating callback for mmhub v1 



Signed-off-by: default avatarHuang Rui <ray.huang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarEdward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 2eba890c

drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c

+20 −0
Original line number Diff line number Diff line
@@ -552,6 +552,25 @@ static int mmhub_v1_0_set_clockgating_state(void *handle, 
	return 0;

}



static void mmhub_v1_0_get_clockgating_state(void *handle, u32 *flags)

{

	struct amdgpu_device *adev = (struct amdgpu_device *)handle;

	int data;



	if (amdgpu_sriov_vf(adev))

		*flags = 0;



	/* AMD_CG_SUPPORT_MC_MGCG */

	data = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATHUB_MISC_CNTL));

	if (data & ATHUB_MISC_CNTL__CG_ENABLE_MASK)

		*flags |= AMD_CG_SUPPORT_MC_MGCG;



	/* AMD_CG_SUPPORT_MC_LS */

	data = RREG32(SOC15_REG_OFFSET(MMHUB, 0, mmATC_L2_MISC_CG));

	if (data & ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK)

		*flags |= AMD_CG_SUPPORT_MC_LS;

}



static int mmhub_v1_0_set_powergating_state(void *handle,

					enum amd_powergating_state state)

{
@@ -573,6 +592,7 @@ const struct amd_ip_funcs mmhub_v1_0_ip_funcs = { 
	.soft_reset = mmhub_v1_0_soft_reset,

	.set_clockgating_state = mmhub_v1_0_set_clockgating_state,

	.set_powergating_state = mmhub_v1_0_set_powergating_state,

	.get_clockgating_state = mmhub_v1_0_get_clockgating_state,

};



const struct amdgpu_ip_block_version mmhub_v1_0_ip_block =