Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Module Name: tbinstal - ACPI table installation and removal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (C) 2000 - 2020, Intel Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *****************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <acpi/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include "accommon.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include "actables.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #define _COMPONENT          ACPI_TABLES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) ACPI_MODULE_NAME("tbinstal")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  * FUNCTION:    acpi_tb_install_table_with_override
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  * PARAMETERS:  new_table_desc          - New table descriptor to install
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  *              override                - Whether override should be performed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  *              table_index             - Where the table index is returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  * RETURN:      None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27)  * DESCRIPTION: Install an ACPI table into the global data structure. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28)  *              table override mechanism is called to allow the host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29)  *              OS to replace any table before it is installed in the root
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30)  *              table array.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) acpi_tb_install_table_with_override(struct acpi_table_desc *new_table_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 				    u8 override, u32 *table_index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	status = acpi_tb_get_next_table_descriptor(&i, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	 * ACPI Table Override:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	 * Before we install the table, let the host OS override it with a new
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	 * one if desired. Any table within the RSDT/XSDT can be replaced,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	 * including the DSDT which is pointed to by the FADT.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	if (override) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		acpi_tb_override_table(new_table_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list.tables[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 				      new_table_desc->address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 				      new_table_desc->flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 				      new_table_desc->pointer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	acpi_tb_print_table_header(new_table_desc->address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 				   new_table_desc->pointer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	/* This synchronizes acpi_gbl_dsdt_index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	*table_index = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	/* Set the global integer width (based upon revision of the DSDT) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	if (i == acpi_gbl_dsdt_index) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		acpi_ut_set_integer_width(new_table_desc->pointer->revision);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77)  * FUNCTION:    acpi_tb_install_standard_table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)  * PARAMETERS:  address             - Address of the table (might be a virtual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80)  *                                    address depending on the table_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81)  *              flags               - Flags for the table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)  *              reload              - Whether reload should be performed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83)  *              override            - Whether override should be performed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84)  *              table_index         - Where the table index is returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86)  * RETURN:      Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88)  * DESCRIPTION: This function is called to verify and install an ACPI table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89)  *              When this function is called by "Load" or "LoadTable" opcodes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90)  *              or by acpi_load_table() API, the "Reload" parameter is set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91)  *              After successfully returning from this function, table is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92)  *              "INSTALLED" but not "VALIDATED".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) acpi_tb_install_standard_table(acpi_physical_address address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 			       u8 flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 			       u8 reload, u8 override, u32 *table_index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	acpi_status status = AE_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	struct acpi_table_desc new_table_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	ACPI_FUNCTION_TRACE(tb_install_standard_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	/* Acquire a temporary table descriptor for validation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	status = acpi_tb_acquire_temp_table(&new_table_desc, address, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		ACPI_ERROR((AE_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 			    "Could not acquire table length at %8.8X%8.8X",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 			    ACPI_FORMAT_UINT64(address)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	 * Optionally do not load any SSDTs from the RSDT/XSDT. This can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	 * be useful for debugging ACPI problems on some machines.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	if (!reload &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	    acpi_gbl_disable_ssdt_table_install &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	    ACPI_COMPARE_NAMESEG(&new_table_desc.signature, ACPI_SIG_SSDT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		ACPI_INFO(("Ignoring installation of %4.4s at %8.8X%8.8X",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 			   new_table_desc.signature.ascii,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 			   ACPI_FORMAT_UINT64(address)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		goto release_and_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	/* Acquire the table lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	/* Validate and verify a table before installation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	status = acpi_tb_verify_temp_table(&new_table_desc, NULL, &i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		if (status == AE_CTRL_TERMINATE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 			/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 			 * Table was unloaded, allow it to be reloaded.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 			 * As we are going to return AE_OK to the caller, we should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 			 * take the responsibility of freeing the input descriptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 			 * Refill the input descriptor to ensure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 			 * acpi_tb_install_table_with_override() can be called again to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 			 * indicate the re-installation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 			acpi_tb_uninstall_table(&new_table_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 			(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 			*table_index = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 			return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		goto unlock_and_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	/* Add the table to the global root table list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	acpi_tb_install_table_with_override(&new_table_desc, override,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 					    table_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	/* Invoke table handler */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	acpi_tb_notify_table(ACPI_TABLE_EVENT_INSTALL, new_table_desc.pointer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) unlock_and_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	/* Release the table lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) release_and_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	/* Release the temporary table descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	acpi_tb_release_temp_table(&new_table_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)  * FUNCTION:    acpi_tb_override_table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)  * PARAMETERS:  old_table_desc      - Validated table descriptor to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)  *                                    overridden
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)  * RETURN:      None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)  * DESCRIPTION: Attempt table override by calling the OSL override functions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)  *              Note: If the table is overridden, then the entire new table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)  *              is acquired and returned by this function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)  *              Before/after invocation, the table descriptor is in a state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)  *              that is "VALIDATED".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) void acpi_tb_override_table(struct acpi_table_desc *old_table_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	struct acpi_table_desc new_table_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	struct acpi_table_header *table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	acpi_physical_address address;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	u32 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	ACPI_ERROR_ONLY(char *override_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	/* (1) Attempt logical override (returns a logical address) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	status = acpi_os_table_override(old_table_desc->pointer, &table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	if (ACPI_SUCCESS(status) && table) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		acpi_tb_acquire_temp_table(&new_table_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 					   ACPI_PTR_TO_PHYSADDR(table),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 					   ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		ACPI_ERROR_ONLY(override_type = "Logical");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		goto finish_override;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	/* (2) Attempt physical override (returns a physical address) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	status = acpi_os_physical_table_override(old_table_desc->pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 						 &address, &length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (ACPI_SUCCESS(status) && address && length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		acpi_tb_acquire_temp_table(&new_table_desc, address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 					   ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 		ACPI_ERROR_ONLY(override_type = "Physical");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		goto finish_override;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	return;			/* There was no override */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) finish_override:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	 * Validate and verify a table before overriding, no nested table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	 * duplication check as it's too complicated and unnecessary.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	status = acpi_tb_verify_temp_table(&new_table_desc, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	ACPI_INFO(("%4.4s 0x%8.8X%8.8X"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 		   " %s table override, new table: 0x%8.8X%8.8X",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		   old_table_desc->signature.ascii,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		   ACPI_FORMAT_UINT64(old_table_desc->address),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		   override_type, ACPI_FORMAT_UINT64(new_table_desc.address)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	/* We can now uninstall the original table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	acpi_tb_uninstall_table(old_table_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	 * Replace the original table descriptor and keep its state as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	 * "VALIDATED".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	acpi_tb_init_table_descriptor(old_table_desc, new_table_desc.address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 				      new_table_desc.flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 				      new_table_desc.pointer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	acpi_tb_validate_temp_table(old_table_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	/* Release the temporary table descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	acpi_tb_release_temp_table(&new_table_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)  * FUNCTION:    acpi_tb_uninstall_table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)  * PARAMETERS:  table_desc          - Table descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)  * RETURN:      None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)  * DESCRIPTION: Delete one internal ACPI table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) void acpi_tb_uninstall_table(struct acpi_table_desc *table_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	ACPI_FUNCTION_TRACE(tb_uninstall_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	/* Table must be installed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	if (!table_desc->address) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		return_VOID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	acpi_tb_invalidate_table(table_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	    ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		ACPI_FREE(ACPI_PHYSADDR_TO_PTR(table_desc->address));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	table_desc->address = ACPI_PTR_TO_PHYSADDR(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	return_VOID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }