Commit 96d2af21 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon: parse the acp clock voltage deps table 



Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3cb928ff

drivers/gpu/drm/radeon/r600_dpm.c

+26 −0
Original line number Diff line number Diff line
@@ -1106,6 +1106,30 @@ int r600_parse_extended_power_table(struct radeon_device *rdev) 
			rdev->pm.dpm.dyn_state.ppm_table->tj_max =

				le32_to_cpu(ppm->ulTjmax);

		}

		if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6) &&

			ext_hdr->usACPTableOffset) {

			ATOM_PPLIB_ACPClk_Voltage_Limit_Table *limits =

				(ATOM_PPLIB_ACPClk_Voltage_Limit_Table *)

				(mode_info->atom_context->bios + data_offset +

				 le16_to_cpu(ext_hdr->usACPTableOffset) + 1);

			u32 size = limits->numEntries *

				sizeof(struct radeon_clock_voltage_dependency_entry);

			rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries =

				kzalloc(size, GFP_KERNEL);

			if (!rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries) {

				r600_free_extended_power_table(rdev);

				return -ENOMEM;

			}

			rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.count =

				limits->numEntries;

			for (i = 0; i < limits->numEntries; i++) {

				rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].clk =

					le16_to_cpu(limits->entries[i].usACPClockLow) |

					(limits->entries[i].ucACPClockHigh << 16);

				rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].v =

					le16_to_cpu(limits->entries[i].usVoltage);

			}

		}

		if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7) &&

			ext_hdr->usPowerTuneTableOffset) {

			u8 rev = *(u8 *)(mode_info->atom_context->bios + data_offset +
@@ -1173,6 +1197,8 @@ void r600_free_extended_power_table(struct radeon_device *rdev) 
		kfree(rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries);

	if (rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries)

		kfree(rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries);

	if (rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries)

		kfree(rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries);

}



enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev,