static void decode_arc_core()

in kernel/setup.c [117:162]

• 33 lines of code
• 9 McCabe index (conditional complexity)

static void decode_arc_core(struct cpuinfo_arc *cpu)
{
	struct bcr_uarch_build_arcv2 uarch;
	const struct id_to_str *tbl;

	if (cpu->core.family < 0x54) { /* includes arc700 */

		for (tbl = &arc_legacy_rel[0]; tbl->id != 0; tbl++) {
			if (cpu->core.family == tbl->id) {
				cpu->release = tbl->str;
				break;
			}
		}

		if (is_isa_arcompact())
			cpu->name = "ARC700";
		else if (tbl->str)
			cpu->name = "HS38";
		else
			cpu->name = cpu->release = "Unknown";

		return;
	}

	/*
	 * Initial HS cores bumped AUX IDENTITY.ARCVER for each release until
	 * ARCVER 0x54 which introduced AUX MICRO_ARCH_BUILD and subsequent
	 * releases only update it.
	 */
	READ_BCR(ARC_REG_MICRO_ARCH_BCR, uarch);

	if (uarch.prod == 4) {
		cpu->name = "HS48";
		cpu->extn.dual = 1;

	} else {
		cpu->name = "HS38";
	}

	for (tbl = &arc_hs_ver54_rel[0]; tbl->id != 0xFF; tbl++) {
		if (uarch.maj == tbl->id) {
			cpu->release = tbl->str;
			break;
		}
	}
}