static void rapl_init_domains()

in intel_rapl_common.c [549:612]

• 50 lines of code
• 12 McCabe index (conditional complexity)

static void rapl_init_domains(struct rapl_package *rp)
{
	enum rapl_domain_type i;
	enum rapl_domain_reg_id j;
	struct rapl_domain *rd = rp->domains;

	for (i = 0; i < RAPL_DOMAIN_MAX; i++) {
		unsigned int mask = rp->domain_map & (1 << i);

		if (!mask)
			continue;

		rd->rp = rp;

		if (i == RAPL_DOMAIN_PLATFORM && rp->id > 0) {
			snprintf(rd->name, RAPL_DOMAIN_NAME_LENGTH, "psys-%d",
				topology_physical_package_id(rp->lead_cpu));
		} else
			snprintf(rd->name, RAPL_DOMAIN_NAME_LENGTH, "%s",
				rapl_domain_names[i]);

		rd->id = i;
		rd->rpl[0].prim_id = PL1_ENABLE;
		rd->rpl[0].name = pl1_name;

		/*
		 * The PL2 power domain is applicable for limits two
		 * and limits three
		 */
		if (rp->priv->limits[i] >= 2) {
			rd->rpl[1].prim_id = PL2_ENABLE;
			rd->rpl[1].name = pl2_name;
		}

		/* Enable PL4 domain if the total power limits are three */
		if (rp->priv->limits[i] == 3) {
			rd->rpl[2].prim_id = PL4_ENABLE;
			rd->rpl[2].name = pl4_name;
		}

		for (j = 0; j < RAPL_DOMAIN_REG_MAX; j++)
			rd->regs[j] = rp->priv->regs[i][j];

		switch (i) {
		case RAPL_DOMAIN_DRAM:
			rd->domain_energy_unit =
			    rapl_defaults->dram_domain_energy_unit;
			if (rd->domain_energy_unit)
				pr_info("DRAM domain energy unit %dpj\n",
					rd->domain_energy_unit);
			break;
		case RAPL_DOMAIN_PLATFORM:
			rd->domain_energy_unit =
			    rapl_defaults->psys_domain_energy_unit;
			if (rd->domain_energy_unit)
				pr_info("Platform domain energy unit %dpj\n",
					rd->domain_energy_unit);
			break;
		default:
			break;
		}
		rd++;
	}
}