drm/amdgpu: add get clockgating_state method for vi common (abd2c2fe) · Commits · 戴 / test

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

+27 −0

Original line number	Diff line number	Diff line
		@@ -1369,6 +1369,32 @@ static int vi_common_set_powergating_state(void *handle,
		return 0;
		}

		static void vi_common_get_clockgating_state(void handle, u32 flags)
		{
		struct amdgpu_device adev = (struct amdgpu_device )handle;
		int data;

		/* AMD_CG_SUPPORT_BIF_LS */
		data = RREG32_PCIE(ixPCIE_CNTL2);
		if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
		*flags \|= AMD_CG_SUPPORT_BIF_LS;

		/* AMD_CG_SUPPORT_HDP_LS */
		data = RREG32(mmHDP_MEM_POWER_LS);
		if (data & HDP_MEM_POWER_LS__LS_ENABLE_MASK)
		*flags \|= AMD_CG_SUPPORT_HDP_LS;

		/* AMD_CG_SUPPORT_HDP_MGCG */
		data = RREG32(mmHDP_HOST_PATH_CNTL);
		if (!(data & HDP_HOST_PATH_CNTL__CLOCK_GATING_DIS_MASK))
		*flags \|= AMD_CG_SUPPORT_HDP_MGCG;

		/* AMD_CG_SUPPORT_ROM_MGCG */
		data = RREG32_SMC(ixCGTT_ROM_CLK_CTRL0);
		if (!(data & CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE0_MASK))
		*flags \|= AMD_CG_SUPPORT_ROM_MGCG;
		}

		static const struct amd_ip_funcs vi_common_ip_funcs = {
		.name = "vi_common",
		.early_init = vi_common_early_init,
		@@ -1384,6 +1410,7 @@ static const struct amd_ip_funcs vi_common_ip_funcs = {
		.soft_reset = vi_common_soft_reset,
		.set_clockgating_state = vi_common_set_clockgating_state,
		.set_powergating_state = vi_common_set_powergating_state,
		.get_clockgating_state = vi_common_get_clockgating_state,
		};

		static const struct amdgpu_ip_block_version vi_common_ip_block =