1 files changed, 32 insertions, 0 deletions
diff --git a/src/arm/windows/windows-arm-init.h b/src/arm/windows/windows-arm-init.h
new file mode 100644
index 0000000..76cc51e
--- /dev/null
+++ b/src/arm/windows/windows-arm-init.h
@@ -0,0 +1,32 @@
+#pragma once
+
+/* List of known and supported Windows on Arm SoCs/chips. */
+enum woa_chip_name {
+	woa_chip_name_microsoft_sq_1 = 0,
+	woa_chip_name_microsoft_sq_2 = 1,
+	woa_chip_name_unknown = 2,
+	woa_chip_name_last = woa_chip_name_unknown
+};
+
+/* Topology information hard-coded by SoC/chip name */
+struct core_info_by_chip_name {
+	enum cpuinfo_uarch uarch;
+	uint64_t frequency; /* Hz */
+};
+
+/* SoC/chip info that's currently not readable by logical system information,
+ * but can be read from registry.
+ */
+struct woa_chip_info {
+	char* chip_name_string;
+	enum woa_chip_name chip_name;
+	struct core_info_by_chip_name uarchs[woa_chip_name_last];
+};
+
+bool get_core_uarch_for_efficiency(
+	enum woa_chip_name chip, BYTE EfficiencyClass,
+	enum cpuinfo_uarch* uarch, uint64_t* frequency);
+
+bool cpu_info_init_by_logical_sys_info(
+	const struct woa_chip_info *chip_info,
+	enum cpuinfo_vendor vendor);