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author | Arnd Bergmann <arnd@arndb.de> | 2012-09-04 17:01:37 +0400 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-09-04 17:01:37 +0400 |
commit | 863e99a8c1ea2b0391491904297f57a0f6a1fdd6 (patch) | |
tree | 0e7789f83c0ba3a1bc3c19d3ccf5ea6f84f19db6 /drivers/acpi/acpica/tbxface.c | |
parent | dd9bf78040fa0da4cecc228e1682b9682b8cb180 (diff) | |
parent | a849088aa1552b1a28eea3daff599ee22a734ae3 (diff) | |
download | linux-863e99a8c1ea2b0391491904297f57a0f6a1fdd6.tar.xz |
Merge commit 'a849088aa1' from rmk/fixes into cleanup/io-pci
As Stephen Rothwell reports, a849088aa155 ("ARM: Fix ioremap() of
address zero") from the arm-current tree and commit c2794437091a ("ARM:
Add fixed PCI i/o mapping") from the arm-soc tree conflict in
a nontrivial way in arch/arm/mm/mmu.c.
Rob Herring explains:
The PCI i/o reserved area has a dummy physical address of 0 and
needs to be skipped by ioremap searches. So we don't set
VM_ARM_STATIC_MAPPING to prevent matches by ioremap. The vm_struct
settings don't really matter when we do the real mapping of the
i/o space.
Since commit a849088aa155 is at the start of the fixes branch
in the arm tree, we can merge it into the branch that contains
the other ioremap changes.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/acpi/acpica/tbxface.c')
-rw-r--r-- | drivers/acpi/acpica/tbxface.c | 226 |
1 files changed, 11 insertions, 215 deletions
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c index abcc6412c244..29e51bc01383 100644 --- a/drivers/acpi/acpica/tbxface.c +++ b/drivers/acpi/acpica/tbxface.c @@ -1,7 +1,6 @@ /****************************************************************************** * - * Module Name: tbxface - Public interfaces to the ACPI subsystem - * ACPI table oriented interfaces + * Module Name: tbxface - ACPI table oriented external interfaces * *****************************************************************************/ @@ -51,11 +50,6 @@ #define _COMPONENT ACPI_TABLES ACPI_MODULE_NAME("tbxface") -/* Local prototypes */ -static acpi_status acpi_tb_load_namespace(void); - -static int no_auto_ssdt; - /******************************************************************************* * * FUNCTION: acpi_allocate_root_table @@ -65,11 +59,10 @@ static int no_auto_ssdt; * * RETURN: Status * - * DESCRIPTION: Allocate a root table array. Used by i_aSL compiler and + * DESCRIPTION: Allocate a root table array. Used by iASL compiler and * acpi_initialize_tables. * ******************************************************************************/ - acpi_status acpi_allocate_root_table(u32 initial_table_count) { @@ -222,52 +215,10 @@ acpi_status acpi_reallocate_root_table(void) /******************************************************************************* * - * FUNCTION: acpi_load_table - * - * PARAMETERS: table_ptr - pointer to a buffer containing the entire - * table to be loaded - * - * RETURN: Status - * - * DESCRIPTION: This function is called to load a table from the caller's - * buffer. The buffer must contain an entire ACPI Table including - * a valid header. The header fields will be verified, and if it - * is determined that the table is invalid, the call will fail. - * - ******************************************************************************/ -acpi_status acpi_load_table(struct acpi_table_header *table_ptr) -{ - acpi_status status; - u32 table_index; - struct acpi_table_desc table_desc; - - if (!table_ptr) - return AE_BAD_PARAMETER; - - ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); - table_desc.pointer = table_ptr; - table_desc.length = table_ptr->length; - table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN; - - /* - * Install the new table into the local data structures - */ - status = acpi_tb_add_table(&table_desc, &table_index); - if (ACPI_FAILURE(status)) { - return status; - } - status = acpi_ns_load_table(table_index, acpi_gbl_root_node); - return status; -} - -ACPI_EXPORT_SYMBOL(acpi_load_table) - -/******************************************************************************* - * * FUNCTION: acpi_get_table_header * - * PARAMETERS: Signature - ACPI signature of needed table - * Instance - Which instance (for SSDTs) + * PARAMETERS: signature - ACPI signature of needed table + * instance - Which instance (for SSDTs) * out_table_header - The pointer to the table header to fill * * RETURN: Status and pointer to mapped table header @@ -382,8 +333,8 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id) * * FUNCTION: acpi_get_table_with_size * - * PARAMETERS: Signature - ACPI signature of needed table - * Instance - Which instance (for SSDTs) + * PARAMETERS: signature - ACPI signature of needed table + * instance - Which instance (for SSDTs) * out_table - Where the pointer to the table is returned * * RETURN: Status and pointer to table @@ -436,6 +387,7 @@ acpi_get_table_with_size(char *signature, return (AE_NOT_FOUND); } +ACPI_EXPORT_SYMBOL(acpi_get_table_with_size) acpi_status acpi_get_table(char *signature, @@ -453,7 +405,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_table) * FUNCTION: acpi_get_table_by_index * * PARAMETERS: table_index - Table index - * Table - Where the pointer to the table is returned + * table - Where the pointer to the table is returned * * RETURN: Status and pointer to the table * @@ -502,157 +454,13 @@ acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table) ACPI_EXPORT_SYMBOL(acpi_get_table_by_index) -/******************************************************************************* - * - * FUNCTION: acpi_tb_load_namespace - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in - * the RSDT/XSDT. - * - ******************************************************************************/ -static acpi_status acpi_tb_load_namespace(void) -{ - acpi_status status; - u32 i; - struct acpi_table_header *new_dsdt; - - ACPI_FUNCTION_TRACE(tb_load_namespace); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* - * Load the namespace. The DSDT is required, but any SSDT and - * PSDT tables are optional. Verify the DSDT. - */ - if (!acpi_gbl_root_table_list.current_table_count || - !ACPI_COMPARE_NAME(& - (acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT].signature), - ACPI_SIG_DSDT) - || - ACPI_FAILURE(acpi_tb_verify_table - (&acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT]))) { - status = AE_NO_ACPI_TABLES; - goto unlock_and_exit; - } - - /* - * Save the DSDT pointer for simple access. This is the mapped memory - * address. We must take care here because the address of the .Tables - * array can change dynamically as tables are loaded at run-time. Note: - * .Pointer field is not validated until after call to acpi_tb_verify_table. - */ - acpi_gbl_DSDT = - acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer; - - /* - * Optionally copy the entire DSDT to local memory (instead of simply - * mapping it.) There are some BIOSs that corrupt or replace the original - * DSDT, creating the need for this option. Default is FALSE, do not copy - * the DSDT. - */ - if (acpi_gbl_copy_dsdt_locally) { - new_dsdt = acpi_tb_copy_dsdt(ACPI_TABLE_INDEX_DSDT); - if (new_dsdt) { - acpi_gbl_DSDT = new_dsdt; - } - } - - /* - * Save the original DSDT header for detection of table corruption - * and/or replacement of the DSDT from outside the OS. - */ - ACPI_MEMCPY(&acpi_gbl_original_dsdt_header, acpi_gbl_DSDT, - sizeof(struct acpi_table_header)); - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - - /* Load and parse tables */ - - status = acpi_ns_load_table(ACPI_TABLE_INDEX_DSDT, acpi_gbl_root_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Load any SSDT or PSDT tables. Note: Loop leaves tables locked */ - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) { - if ((!ACPI_COMPARE_NAME - (&(acpi_gbl_root_table_list.tables[i].signature), - ACPI_SIG_SSDT) - && - !ACPI_COMPARE_NAME(& - (acpi_gbl_root_table_list.tables[i]. - signature), ACPI_SIG_PSDT)) - || - ACPI_FAILURE(acpi_tb_verify_table - (&acpi_gbl_root_table_list.tables[i]))) { - continue; - } - - if (no_auto_ssdt) { - printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n"); - continue; - } - - /* Ignore errors while loading tables, get as many as possible */ - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - (void)acpi_ns_load_table(i, acpi_gbl_root_node); - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n")); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_load_tables - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT - * - ******************************************************************************/ - -acpi_status acpi_load_tables(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_load_tables); - - /* Load the namespace from the tables */ - - status = acpi_tb_load_namespace(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "While loading namespace from ACPI tables")); - } - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_load_tables) - /******************************************************************************* * * FUNCTION: acpi_install_table_handler * - * PARAMETERS: Handler - Table event handler - * Context - Value passed to the handler on each event + * PARAMETERS: handler - Table event handler + * context - Value passed to the handler on each event * * RETURN: Status * @@ -698,7 +506,7 @@ ACPI_EXPORT_SYMBOL(acpi_install_table_handler) * * FUNCTION: acpi_remove_table_handler * - * PARAMETERS: Handler - Table event handler that was installed + * PARAMETERS: handler - Table event handler that was installed * previously. * * RETURN: Status @@ -734,15 +542,3 @@ acpi_status acpi_remove_table_handler(acpi_tbl_handler handler) } ACPI_EXPORT_SYMBOL(acpi_remove_table_handler) - - -static int __init acpi_no_auto_ssdt_setup(char *s) { - - printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n"); - - no_auto_ssdt = 1; - - return 1; -} - -__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup); |