static void set_floor_freq_atom()

in intel_rapl_common.c [960:981]

• 20 lines of code
• 4 McCabe index (conditional complexity)

static void set_floor_freq_atom(struct rapl_domain *rd, bool enable)
{
	static u32 power_ctrl_orig_val;
	u32 mdata;

	if (!rapl_defaults->floor_freq_reg_addr) {
		pr_err("Invalid floor frequency config register\n");
		return;
	}

	if (!power_ctrl_orig_val)
		iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_CR_READ,
			      rapl_defaults->floor_freq_reg_addr,
			      &power_ctrl_orig_val);
	mdata = power_ctrl_orig_val;
	if (enable) {
		mdata &= ~(0x7f << 8);
		mdata |= 1 << 8;
	}
	iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_CR_WRITE,
		       rapl_defaults->floor_freq_reg_addr, mdata);
}