X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Facpi%2Ftables%2Ftbxface.c;h=5ba9303293ad968c4366ca49c4044291cd4bf10c;hb=refs%2Fheads%2Fvserver;hp=9fe53c9d5b9ad4a78f30af8bfcd1cd35d1e30e8d;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c index 9fe53c9d5..5ba930329 100644 --- a/drivers/acpi/tables/tbxface.c +++ b/drivers/acpi/tables/tbxface.c @@ -42,8 +42,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include - #include #include #include @@ -68,7 +66,7 @@ acpi_status acpi_load_tables(void) struct acpi_pointer rsdp_address; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_load_tables"); + ACPI_FUNCTION_TRACE(acpi_load_tables); /* Get the RSDP */ @@ -123,7 +121,8 @@ acpi_status acpi_load_tables(void) return_ACPI_STATUS(status); } -#ifdef ACPI_FUTURE_USAGE +ACPI_EXPORT_SYMBOL(acpi_load_tables) + /******************************************************************************* * * FUNCTION: acpi_load_table @@ -134,19 +133,18 @@ acpi_status acpi_load_tables(void) * 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 + * 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; struct acpi_table_desc table_info; struct acpi_pointer address; - ACPI_FUNCTION_TRACE("acpi_load_table"); + ACPI_FUNCTION_TRACE(acpi_load_table); if (!table_ptr) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -174,6 +172,7 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) status = acpi_tb_install_table(&table_info); if (ACPI_FAILURE(status)) { if (status == AE_ALREADY_EXISTS) { + /* Table already exists, no error */ status = AE_OK; @@ -188,12 +187,12 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) /* Convert the table to common format if necessary */ switch (table_info.type) { - case ACPI_TABLE_FADT: + case ACPI_TABLE_ID_FADT: status = acpi_tb_convert_table_fadt(); break; - case ACPI_TABLE_FACS: + case ACPI_TABLE_ID_FACS: status = acpi_tb_build_common_facs(&table_info); break; @@ -208,6 +207,7 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) } if (ACPI_FAILURE(status)) { + /* Uninstall table and free the buffer */ (void)acpi_tb_uninstall_table(table_info.installed_desc); @@ -216,6 +216,61 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_load_table) + +/******************************************************************************* + * + * FUNCTION: acpi_unload_table_id + * + * PARAMETERS: table_type - Type of table to be unloaded + * id - Owner ID of the table to be removed. + * + * RETURN: Status + * + * DESCRIPTION: This routine is used to force the unload of a table (by id) + * + ******************************************************************************/ +acpi_status acpi_unload_table_id(acpi_table_type table_type, acpi_owner_id id) +{ + struct acpi_table_desc *table_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_unload_table); + + /* Parameter validation */ + if (table_type > ACPI_TABLE_ID_MAX) + return_ACPI_STATUS(AE_BAD_PARAMETER); + + /* Find table from the requested type list */ + table_desc = acpi_gbl_table_lists[table_type].next; + while (table_desc && table_desc->owner_id != id) + table_desc = table_desc->next; + + if (!table_desc) + return_ACPI_STATUS(AE_NOT_EXIST); + + /* + * Delete all namespace objects owned by this table. Note that these + * objects can appear anywhere in the namespace by virtue of the AML + * "Scope" operator. Thus, we need to track ownership by an ID, not + * simply a position within the hierarchy + */ + acpi_ns_delete_namespace_by_owner(table_desc->owner_id); + + status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (ACPI_FAILURE(status)) + return_ACPI_STATUS(status); + + (void)acpi_tb_uninstall_table(table_desc); + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_unload_table_id) + +#ifdef ACPI_FUTURE_USAGE /******************************************************************************* * * FUNCTION: acpi_unload_table @@ -227,31 +282,33 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) * DESCRIPTION: This routine is used to force the unload of a table * ******************************************************************************/ - acpi_status acpi_unload_table(acpi_table_type table_type) { struct acpi_table_desc *table_desc; - ACPI_FUNCTION_TRACE("acpi_unload_table"); + ACPI_FUNCTION_TRACE(acpi_unload_table); /* Parameter validation */ - if (table_type > ACPI_TABLE_MAX) { + if (table_type > ACPI_TABLE_ID_MAX) { return_ACPI_STATUS(AE_BAD_PARAMETER); } /* Find all tables of the requested type */ table_desc = acpi_gbl_table_lists[table_type].next; + if (!table_desc) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + while (table_desc) { /* - * Delete all namespace entries owned by this table. Note that these - * entries can appear anywhere in the namespace by virtue of the AML - * "Scope" operator. Thus, we need to track ownership by an ID, not + * Delete all namespace objects owned by this table. Note that these + * objects can appear anywhere in the namespace by virtue of the AML + * "Scope" operator. Thus, we need to track ownership by an ID, not * simply a position within the hierarchy */ acpi_ns_delete_namespace_by_owner(table_desc->owner_id); - acpi_ut_release_owner_id(&table_desc->owner_id); table_desc = table_desc->next; } @@ -261,6 +318,8 @@ acpi_status acpi_unload_table(acpi_table_type table_type) return_ACPI_STATUS(AE_OK); } +ACPI_EXPORT_SYMBOL(acpi_unload_table) + /******************************************************************************* * * FUNCTION: acpi_get_table_header @@ -271,17 +330,16 @@ acpi_status acpi_unload_table(acpi_table_type table_type) * see acpi_gbl_acpi_table_flag * out_table_header - pointer to the struct acpi_table_header if successful * - * DESCRIPTION: This function is called to get an ACPI table header. The caller + * DESCRIPTION: This function is called to get an ACPI table header. The caller * supplies an pointer to a data area sufficient to contain an ACPI * struct acpi_table_header structure. * * The header contains a length field that can be used to determine - * the size of the buffer needed to contain the entire table. This + * the size of the buffer needed to contain the entire table. This * function is not valid for the RSD PTR table since it does not * have a standard header and is fixed length. * ******************************************************************************/ - acpi_status acpi_get_table_header(acpi_table_type table_type, u32 instance, struct acpi_table_header *out_table_header) @@ -289,16 +347,16 @@ acpi_get_table_header(acpi_table_type table_type, struct acpi_table_header *tbl_ptr; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_get_table_header"); + ACPI_FUNCTION_TRACE(acpi_get_table_header); if ((instance == 0) || - (table_type == ACPI_TABLE_RSDP) || (!out_table_header)) { + (table_type == ACPI_TABLE_ID_RSDP) || (!out_table_header)) { return_ACPI_STATUS(AE_BAD_PARAMETER); } /* Check the table type and instance */ - if ((table_type > ACPI_TABLE_MAX) || + if ((table_type > ACPI_TABLE_ID_MAX) || (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) && instance > 1)) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -319,12 +377,14 @@ acpi_get_table_header(acpi_table_type table_type, /* Copy the header to the caller's buffer */ - ACPI_MEMCPY((void *)out_table_header, (void *)tbl_ptr, + ACPI_MEMCPY(ACPI_CAST_PTR(void, out_table_header), + ACPI_CAST_PTR(void, tbl_ptr), sizeof(struct acpi_table_header)); return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_get_table_header) #endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* @@ -340,16 +400,15 @@ acpi_get_table_header(acpi_table_type table_type, * * RETURN: Status * - * DESCRIPTION: This function is called to get an ACPI table. The caller + * DESCRIPTION: This function is called to get an ACPI table. The caller * supplies an out_buffer large enough to contain the entire ACPI - * table. The caller should call the acpi_get_table_header function - * first to determine the buffer size needed. Upon completion + * table. The caller should call the acpi_get_table_header function + * first to determine the buffer size needed. Upon completion * the out_buffer->Length field will indicate the number of bytes * copied into the out_buffer->buf_ptr buffer. This table will be * a complete table including the header. * ******************************************************************************/ - acpi_status acpi_get_table(acpi_table_type table_type, u32 instance, struct acpi_buffer *ret_buffer) @@ -358,7 +417,7 @@ acpi_get_table(acpi_table_type table_type, acpi_status status; acpi_size table_length; - ACPI_FUNCTION_TRACE("acpi_get_table"); + ACPI_FUNCTION_TRACE(acpi_get_table); /* Parameter validation */ @@ -373,7 +432,7 @@ acpi_get_table(acpi_table_type table_type, /* Check the table type and instance */ - if ((table_type > ACPI_TABLE_MAX) || + if ((table_type > ACPI_TABLE_ID_MAX) || (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) && instance > 1)) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -396,7 +455,8 @@ acpi_get_table(acpi_table_type table_type, /* Get the table length */ - if (table_type == ACPI_TABLE_RSDP) { + if (table_type == ACPI_TABLE_ID_RSDP) { + /* RSD PTR is the only "table" without a header */ table_length = sizeof(struct rsdp_descriptor); @@ -413,8 +473,10 @@ acpi_get_table(acpi_table_type table_type, /* Copy the table to the buffer */ - ACPI_MEMCPY((void *)ret_buffer->pointer, (void *)tbl_ptr, table_length); + ACPI_MEMCPY(ACPI_CAST_PTR(void, ret_buffer->pointer), + ACPI_CAST_PTR(void, tbl_ptr), table_length); + return_ACPI_STATUS(AE_OK); } -EXPORT_SYMBOL(acpi_get_table); +ACPI_EXPORT_SYMBOL(acpi_get_table)