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Commit 2e1beaf6 authored by Lv Zheng's avatar Lv Zheng Committed by Rafael J. Wysocki
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ACPICA: Utilities: Reorder initialization code 

ACPICA commit 3894fa9d071343e6ebc7ea480255fa4f27a290be

This patch re-orders initialization code in acpi_enable_subsystem()
so that all hardware reduced stuffs can be collected together.

Note this patch contains code from the following 2 ACPICA upstream commits
so that the changes can be made clearer for the reviewers:
 https://github.com/acpica/acpica/commit/071eff73
 https://github.com/acpica/acpica/commit/3894fa9d
And additional change to remove the global variable and unused code
fragments due to the test result. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/3894fa9d


Signed-off-by: default avatarLv Zheng <lv.zheng@intel.com>
Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent aa6abd2b

drivers/acpi/acpica/utxfinit.c

+15 −16
Original line number Diff line number Diff line
@@ -154,6 +154,21 @@ acpi_status __init acpi_enable_subsystem(u32 flags) 
	 */

	acpi_gbl_early_initialization = FALSE;



	/*

	 * Install the default operation region handlers. These are the

	 * handlers that are defined by the ACPI specification to be

	 * "always accessible" -- namely, system_memory, system_IO, and

	 * PCI_Config. This also means that no _REG methods need to be

	 * run for these address spaces. We need to have these handlers

	 * installed before any AML code can be executed, especially any

	 * module-level code (11/2015).

	 */

	status = acpi_ev_install_region_handlers();

	if (ACPI_FAILURE(status)) {

		ACPI_EXCEPTION((AE_INFO, status,

				"During Region initialization"));

		return_ACPI_STATUS(status);

	}

#if (!ACPI_REDUCED_HARDWARE)



	/* Enable ACPI mode */
@@ -182,23 +197,7 @@ acpi_status __init acpi_enable_subsystem(u32 flags) 
			return_ACPI_STATUS(status);

		}

	}

#endif				/* !ACPI_REDUCED_HARDWARE */



	/*

	 * Install the default op_region handlers. These are installed unless

	 * other handlers have already been installed via the

	 * install_address_space_handler interface.

	 */

	if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {

		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,

				  "[Init] Installing default address space handlers\n"));



		status = acpi_ev_install_region_handlers();

		if (ACPI_FAILURE(status)) {

			return_ACPI_STATUS(status);

		}

	}

#if (!ACPI_REDUCED_HARDWARE)

	/*

	 * Initialize ACPI Event handling (Fixed and General Purpose)

	 *