acpi: Add acpi_dmar_foreach helpers (4c3eda82) · Commits · Wenxi XU / zephyr

include/zephyr/acpi/acpi.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -173,6 +173,14 @@ int acpi_dmar_entry_get(enum AcpiDmarType type, ACPI_SUBTABLE_HEADER **tables);
		int acpi_drhd_get(enum AcpiDmarScopeType scope, ACPI_DMAR_DEVICE_SCOPE *dev_scope,
		union acpi_dmar_id dmar_id, int num_inst, int max_inst);

		typedef void (dmar_foreach_subtable_func_t)(ACPI_DMAR_HEADER subtable, void *arg);
		typedef void (dmar_foreach_devscope_func_t)(ACPI_DMAR_DEVICE_SCOPE devscope, void *arg);

		void acpi_dmar_foreach_subtable(ACPI_TABLE_DMAR *dmar, dmar_foreach_subtable_func_t func,
		void *arg);
		void acpi_dmar_foreach_devscope(ACPI_DMAR_HARDWARE_UNIT *hu,
		dmar_foreach_devscope_func_t func, void *arg);

		/**
		* @brief Retrieve the 'n'th enabled local apic info.
		*

+31 −0

Original line number	Diff line number	Diff line
		@@ -651,6 +651,37 @@ int acpi_dmar_entry_get(enum AcpiDmarType type, ACPI_SUBTABLE_HEADER **tables)
		return -ENODEV;
		}

		void acpi_dmar_foreach_subtable(ACPI_TABLE_DMAR *dmar,
		dmar_foreach_subtable_func_t func, void *arg)
		{
		uint16_t length = dmar->Header.Length;
		uintptr_t offset = sizeof(ACPI_TABLE_DMAR);

		while (offset < length) {
		ACPI_DMAR_HEADER *subtable = ACPI_ADD_PTR(ACPI_DMAR_HEADER, dmar, offset);

		func(subtable, arg);

		offset += subtable->Length;
		}
		}

		void acpi_dmar_foreach_devscope(ACPI_DMAR_HARDWARE_UNIT *hu,
		dmar_foreach_devscope_func_t func, void *arg)
		{
		uint16_t length = hu->Header.Length;
		uintptr_t offset = sizeof(ACPI_DMAR_HARDWARE_UNIT);

		while (offset < length) {
		ACPI_DMAR_DEVICE_SCOPE *devscope = ACPI_ADD_PTR(ACPI_DMAR_DEVICE_SCOPE,
		hu, offset);

		func(devscope, arg);

		offset += devscope->Length;
		}
		}

		int acpi_drhd_get(enum AcpiDmarScopeType scope, ACPI_DMAR_DEVICE_SCOPE *dev_scope,
		union acpi_dmar_id dmar_id, int num_inst, int max_inst)
		{