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Commit 2eba890c authored by Huang Rui's avatar Huang Rui Committed by Alex Deucher
Browse files

drm/amdgpu: add get_clockgating for sdma v4 



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 f9abe35c

drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c

+20 −0
Original line number Diff line number Diff line
@@ -1408,6 +1408,25 @@ static int sdma_v4_0_set_powergating_state(void *handle, 
	return 0;

}



static void sdma_v4_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_SDMA_MGCG */

	data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL));

	if (!(data & SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK))

		*flags |= AMD_CG_SUPPORT_SDMA_MGCG;



	/* AMD_CG_SUPPORT_SDMA_LS */

	data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL));

	if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)

		*flags |= AMD_CG_SUPPORT_SDMA_LS;

}



const struct amd_ip_funcs sdma_v4_0_ip_funcs = {

	.name = "sdma_v4_0",

	.early_init = sdma_v4_0_early_init,
@@ -1423,6 +1442,7 @@ const struct amd_ip_funcs sdma_v4_0_ip_funcs = { 
	.soft_reset = sdma_v4_0_soft_reset,

	.set_clockgating_state = sdma_v4_0_set_clockgating_state,

	.set_powergating_state = sdma_v4_0_set_powergating_state,

	.get_clockgating_state = sdma_v4_0_get_clockgating_state,

};



static const struct amdgpu_ring_funcs sdma_v4_0_ring_funcs = {