drm/radeon: parse the samu clock voltage deps table (3cb928ff) · Commits · e / devices / android_kernel_xiaomi_nabu

drivers/gpu/drm/radeon/r600_dpm.c

+26 −0

Original line number	Diff line number	Diff line
		@@ -1051,6 +1051,30 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
		le16_to_cpu(limits->entries[i].usVoltage);
		}
		}
		if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4) &&
		ext_hdr->usSAMUTableOffset) {
		ATOM_PPLIB_SAMClk_Voltage_Limit_Table *limits =
		(ATOM_PPLIB_SAMClk_Voltage_Limit_Table *)
		(mode_info->atom_context->bios + data_offset +
		le16_to_cpu(ext_hdr->usSAMUTableOffset) + 1);
		u32 size = limits->numEntries *
		sizeof(struct radeon_clock_voltage_dependency_entry);
		rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries =
		kzalloc(size, GFP_KERNEL);
		if (!rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries) {
		r600_free_extended_power_table(rdev);
		return -ENOMEM;
		}
		rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.count =
		limits->numEntries;
		for (i = 0; i < limits->numEntries; i++) {
		rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].clk =
		le16_to_cpu(limits->entries[i].usSAMClockLow) \|
		(limits->entries[i].ucSAMClockHigh << 16);
		rdev->pm.dpm.dyn_state.samu_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_V5) &&
		ext_hdr->usPPMTableOffset) {
		ATOM_PPLIB_PPM_Table ppm = (ATOM_PPLIB_PPM_Table )
		@@ -1147,6 +1171,8 @@ void r600_free_extended_power_table(struct radeon_device *rdev)
		kfree(rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries);
		if (rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries)
		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);
		}

		enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev,