diff options
Diffstat (limited to 'drivers/acpi')
105 files changed, 2884 insertions, 2033 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 114cf48085ab..54e9729f9634 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -189,17 +189,24 @@ config ACPI_DOCK This driver supports ACPI-controlled docking stations and removable drive bays such as the IBM Ultrabay and the Dell Module Bay. -config ACPI_PROCESSOR - tristate "Processor" +config ACPI_CPU_FREQ_PSS + bool select THERMAL + +config ACPI_PROCESSOR_IDLE + bool select CPU_IDLE + +config ACPI_PROCESSOR + tristate "Processor" depends on X86 || IA64 + select ACPI_PROCESSOR_IDLE + select ACPI_CPU_FREQ_PSS default y help - This driver installs ACPI as the idle handler for Linux and uses - ACPI C2 and C3 processor states to save power on systems that - support it. It is required by several flavors of cpufreq - performance-state drivers. + This driver adds support for the ACPI Processor package. It is required + by several flavors of cpufreq performance-state, thermal, throttling and + idle drivers. To compile this driver as a module, choose M here: the module will be called processor. diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 8321430d7f24..b5e7cd8a9c71 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -24,7 +24,7 @@ acpi-y += nvs.o # Power management related files acpi-y += wakeup.o acpi-$(CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT) += sleep.o -acpi-y += device_pm.o +acpi-y += device_sysfs.o device_pm.o acpi-$(CONFIG_ACPI_SLEEP) += proc.o @@ -80,8 +80,10 @@ obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o obj-$(CONFIG_ACPI_BGRT) += bgrt.o # processor has its own "processor." module_param namespace -processor-y := processor_driver.o processor_throttling.o -processor-y += processor_idle.o processor_thermal.o +processor-y := processor_driver.o +processor-$(CONFIG_ACPI_PROCESSOR_IDLE) += processor_idle.o +processor-$(CONFIG_ACPI_CPU_FREQ_PSS) += processor_throttling.o \ + processor_thermal.o processor-$(CONFIG_CPU_FREQ) += processor_perflib.o obj-$(CONFIG_ACPI_PROCESSOR_AGGREGATOR) += acpi_pad.o diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 9b5354a2cd08..f71b756b05c4 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -16,10 +16,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c index ac0f52f6df2b..f77956c3fd45 100644 --- a/drivers/acpi/acpi_ipmi.c +++ b/drivers/acpi/acpi_ipmi.c @@ -17,10 +17,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 502454c24e69..f51bd0d0bc17 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -59,6 +59,7 @@ ACPI_MODULE_NAME("acpi_lpss"); #define LPSS_CLK_DIVIDER BIT(2) #define LPSS_LTR BIT(3) #define LPSS_SAVE_CTX BIT(4) +#define LPSS_NO_D3_DELAY BIT(5) struct lpss_private_data; @@ -155,6 +156,10 @@ static const struct lpss_device_desc byt_pwm_dev_desc = { .flags = LPSS_SAVE_CTX, }; +static const struct lpss_device_desc bsw_pwm_dev_desc = { + .flags = LPSS_SAVE_CTX | LPSS_NO_D3_DELAY, +}; + static const struct lpss_device_desc byt_uart_dev_desc = { .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX, .clk_con_id = "baudclk", @@ -162,6 +167,14 @@ static const struct lpss_device_desc byt_uart_dev_desc = { .setup = lpss_uart_setup, }; +static const struct lpss_device_desc bsw_uart_dev_desc = { + .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX + | LPSS_NO_D3_DELAY, + .clk_con_id = "baudclk", + .prv_offset = 0x800, + .setup = lpss_uart_setup, +}; + static const struct lpss_device_desc byt_spi_dev_desc = { .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX, .prv_offset = 0x400, @@ -177,8 +190,15 @@ static const struct lpss_device_desc byt_i2c_dev_desc = { .setup = byt_i2c_setup, }; +static const struct lpss_device_desc bsw_i2c_dev_desc = { + .flags = LPSS_CLK | LPSS_SAVE_CTX | LPSS_NO_D3_DELAY, + .prv_offset = 0x800, + .setup = byt_i2c_setup, +}; + static struct lpss_device_desc bsw_spi_dev_desc = { - .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX, + .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX + | LPSS_NO_D3_DELAY, .prv_offset = 0x400, .setup = lpss_deassert_reset, }; @@ -213,11 +233,12 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = { { "INT33FC", }, /* Braswell LPSS devices */ - { "80862288", LPSS_ADDR(byt_pwm_dev_desc) }, - { "8086228A", LPSS_ADDR(byt_uart_dev_desc) }, + { "80862288", LPSS_ADDR(bsw_pwm_dev_desc) }, + { "8086228A", LPSS_ADDR(bsw_uart_dev_desc) }, { "8086228E", LPSS_ADDR(bsw_spi_dev_desc) }, - { "808622C1", LPSS_ADDR(byt_i2c_dev_desc) }, + { "808622C1", LPSS_ADDR(bsw_i2c_dev_desc) }, + /* Broadwell LPSS devices */ { "INT3430", LPSS_ADDR(lpt_dev_desc) }, { "INT3431", LPSS_ADDR(lpt_dev_desc) }, { "INT3432", LPSS_ADDR(lpt_i2c_dev_desc) }, @@ -557,9 +578,14 @@ static void acpi_lpss_restore_ctx(struct device *dev, * The following delay is needed or the subsequent write operations may * fail. The LPSS devices are actually PCI devices and the PCI spec * expects 10ms delay before the device can be accessed after D3 to D0 - * transition. + * transition. However some platforms like BSW does not need this delay. */ - msleep(10); + unsigned int delay = 10; /* default 10ms delay */ + + if (pdata->dev_desc->flags & LPSS_NO_D3_DELAY) + delay = 0; + + msleep(delay); for (i = 0; i < LPSS_PRV_REG_COUNT; i++) { unsigned long offset = i * sizeof(u32); diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index ee28f4d15625..6b0d3ef7309c 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -16,11 +16,6 @@ * NON INFRINGEMENT. See the GNU General Public License for more * details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * * ACPI based HotPlug driver that supports Memory Hotplug * This driver fields notifications from firmware for memory add * and remove operations and alerts the VM of the affected memory diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index 00b39802d7ec..ae307ff36acb 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -12,10 +12,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #include <linux/kernel.h> diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 92a5f738e370..985b8a83184e 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -485,7 +485,7 @@ static const struct acpi_device_id processor_device_ids[] = { { } }; -static struct acpi_scan_handler __refdata processor_handler = { +static struct acpi_scan_handler processor_handler = { .ids = processor_device_ids, .attach = acpi_processor_add, #ifdef CONFIG_ACPI_HOTPLUG_CPU diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 8c2fe2f2f9fd..5778e8e4313a 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -17,10 +17,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index c1a963581dc0..fedcc16b56cc 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -11,6 +11,7 @@ obj-y += acpi.o acpi-y := \ dsargs.o \ dscontrol.o \ + dsdebug.o \ dsfield.o \ dsinit.o \ dsmethod.o \ @@ -164,6 +165,7 @@ acpi-y += \ utmath.o \ utmisc.o \ utmutex.o \ + utnonansi.o \ utobject.o \ utosi.o \ utownerid.o \ diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index 43685dd36c77..eb2e926d8218 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -67,9 +67,6 @@ struct acpi_db_execute_walk { }; #define PARAM_LIST(pl) pl -#define DBTEST_OUTPUT_LEVEL(lvl) if (acpi_gbl_db_opt_verbose) -#define VERBOSE_PRINT(fp) DBTEST_OUTPUT_LEVEL(lvl) {\ - acpi_os_printf PARAM_LIST(fp);} #define EX_NO_SINGLE_STEP 1 #define EX_SINGLE_STEP 2 @@ -77,10 +74,6 @@ struct acpi_db_execute_walk { /* * dbxface - external debugger interfaces */ -acpi_status acpi_db_initialize(void); - -void acpi_db_terminate(void); - acpi_status acpi_db_single_step(struct acpi_walk_state *walk_state, union acpi_parse_object *op, u32 op_type); @@ -102,6 +95,8 @@ void acpi_db_display_interfaces(char *action_arg, char *interface_name_arg); acpi_status acpi_db_sleep(char *object_arg); +void acpi_db_trace(char *enable_arg, char *method_arg, char *once_arg); + void acpi_db_display_locks(void); void acpi_db_display_resources(char *object_arg); @@ -262,6 +257,23 @@ char *acpi_db_get_next_token(char *string, char **next, acpi_object_type * return_type); /* + * dbobject + */ +void acpi_db_decode_internal_object(union acpi_operand_object *obj_desc); + +void +acpi_db_display_internal_object(union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state); + +void acpi_db_decode_arguments(struct acpi_walk_state *walk_state); + +void acpi_db_decode_locals(struct acpi_walk_state *walk_state); + +void +acpi_db_dump_method_info(acpi_status status, + struct acpi_walk_state *walk_state); + +/* * dbstats - Generation and display of ACPI table statistics */ void acpi_db_generate_statistics(union acpi_parse_object *root, u8 is_method); diff --git a/drivers/acpi/acpica/acdispat.h b/drivers/acpi/acpica/acdispat.h index 408f04bcaab4..7094dc89eb81 100644 --- a/drivers/acpi/acpica/acdispat.h +++ b/drivers/acpi/acpica/acdispat.h @@ -354,4 +354,12 @@ acpi_status acpi_ds_result_push(union acpi_operand_object *object, struct acpi_walk_state *walk_state); +/* + * dsdebug - parser debugging routines + */ +void +acpi_ds_dump_method_stack(acpi_status status, + struct acpi_walk_state *walk_state, + union acpi_parse_object *op); + #endif /* _ACDISPAT_H_ */ diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 53f96a370762..09f37b516808 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -58,11 +58,12 @@ ACPI_GLOBAL(struct acpi_table_list, acpi_gbl_root_table_list); ACPI_GLOBAL(struct acpi_table_header *, acpi_gbl_DSDT); ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header); +ACPI_INIT_GLOBAL(u32, acpi_gbl_dsdt_index, ACPI_INVALID_TABLE_INDEX); +ACPI_INIT_GLOBAL(u32, acpi_gbl_facs_index, ACPI_INVALID_TABLE_INDEX); +ACPI_INIT_GLOBAL(u32, acpi_gbl_xfacs_index, ACPI_INVALID_TABLE_INDEX); #if (!ACPI_REDUCED_HARDWARE) ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS); -ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_facs32); -ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_facs64); #endif /* !ACPI_REDUCED_HARDWARE */ @@ -235,6 +236,10 @@ ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0); ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list); +/* Maximum number of While() loop iterations before forced abort */ + +ACPI_GLOBAL(u16, acpi_gbl_max_loop_iterations); + /* Control method single step flag */ ACPI_GLOBAL(u8, acpi_gbl_cm_single_step); @@ -290,8 +295,6 @@ ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]); ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level); ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer); -ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_level); -ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_layer); /***************************************************************************** * @@ -309,9 +312,10 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE); ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE); ACPI_INIT_GLOBAL(u8, acpi_gbl_cstyle_disassembly, TRUE); ACPI_INIT_GLOBAL(u8, acpi_gbl_force_aml_disassembly, FALSE); +ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_opt_verbose, TRUE); -ACPI_GLOBAL(u8, acpi_gbl_db_opt_disasm); -ACPI_GLOBAL(u8, acpi_gbl_db_opt_verbose); +ACPI_GLOBAL(u8, acpi_gbl_dm_opt_disasm); +ACPI_GLOBAL(u8, acpi_gbl_dm_opt_listing); ACPI_GLOBAL(u8, acpi_gbl_num_external_methods); ACPI_GLOBAL(u32, acpi_gbl_resolved_external_methods); ACPI_GLOBAL(struct acpi_external_list *, acpi_gbl_external_list); @@ -346,8 +350,8 @@ ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]); /* * Statistic globals */ -ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1]); -ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1]); +ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TOTAL_TYPES]); +ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TOTAL_TYPES]); ACPI_GLOBAL(u16, acpi_gbl_obj_type_count_misc); ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc); ACPI_GLOBAL(u32, acpi_gbl_num_nodes); diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h index 7ac98000b46b..e820ed8f173f 100644 --- a/drivers/acpi/acpica/acinterp.h +++ b/drivers/acpi/acpica/acinterp.h @@ -131,6 +131,28 @@ void acpi_ex_do_debug_object(union acpi_operand_object *source_desc, u32 level, u32 index); +void +acpi_ex_start_trace_method(struct acpi_namespace_node *method_node, + union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state); + +void +acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node, + union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state); + +void +acpi_ex_start_trace_opcode(union acpi_parse_object *op, + struct acpi_walk_state *walk_state); + +void +acpi_ex_stop_trace_opcode(union acpi_parse_object *op, + struct acpi_walk_state *walk_state); + +void +acpi_ex_trace_point(acpi_trace_event_type type, + u8 begin, u8 *aml, char *pathname); + /* * exfield - ACPI AML (p-code) execution - field manipulation */ diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index bc600969c6a1..6f708267ad8c 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -174,8 +174,12 @@ struct acpi_namespace_node { */ #ifdef ACPI_LARGE_NAMESPACE_NODE union acpi_parse_object *op; + void *method_locals; + void *method_args; u32 value; u32 length; + u8 arg_count; + #endif }; @@ -209,11 +213,9 @@ struct acpi_table_list { #define ACPI_ROOT_ORIGIN_ALLOCATED (1) #define ACPI_ROOT_ALLOW_RESIZE (2) -/* Predefined (fixed) table indexes */ +/* Predefined table indexes */ -#define ACPI_TABLE_INDEX_DSDT (0) -#define ACPI_TABLE_INDEX_FACS (1) -#define ACPI_TABLE_INDEX_X_FACS (2) +#define ACPI_INVALID_TABLE_INDEX (0xFFFFFFFF) struct acpi_find_context { char *search_for; @@ -404,6 +406,13 @@ struct acpi_simple_repair_info { #define ACPI_NUM_RTYPES 5 /* Number of actual object types */ +/* Info for running the _REG methods */ + +struct acpi_reg_walk_info { + acpi_adr_space_type space_id; + u32 reg_run_count; +}; + /***************************************************************************** * * Event typedefs and structs @@ -715,7 +724,7 @@ union acpi_parse_value { union acpi_parse_object *arg; /* arguments and contained ops */ }; -#ifdef ACPI_DISASSEMBLER +#if defined(ACPI_DISASSEMBLER) || defined(ACPI_DEBUG_OUTPUT) #define ACPI_DISASM_ONLY_MEMBERS(a) a; #else #define ACPI_DISASM_ONLY_MEMBERS(a) @@ -726,7 +735,7 @@ union acpi_parse_value { u8 descriptor_type; /* To differentiate various internal objs */\ u8 flags; /* Type of Op */\ u16 aml_opcode; /* AML opcode */\ - u32 aml_offset; /* Offset of declaration in AML */\ + u8 *aml; /* Address of declaration in AML */\ union acpi_parse_object *next; /* Next op */\ struct acpi_namespace_node *node; /* For use by interpreter */\ union acpi_parse_value value; /* Value or args associated with the opcode */\ @@ -1103,6 +1112,9 @@ struct acpi_db_method_info { * Index of current thread inside all them created. */ char init_args; +#ifdef ACPI_DEBUGGER + acpi_object_type arg_types[4]; +#endif char *arguments[4]; char num_threads_str[11]; char id_of_thread_str[11]; @@ -1119,6 +1131,10 @@ struct acpi_integrity_info { #define ACPI_DB_CONSOLE_OUTPUT 0x02 #define ACPI_DB_DUPLICATE_OUTPUT 0x03 +struct acpi_object_info { + u32 types[ACPI_TOTAL_TYPES]; +}; + /***************************************************************************** * * Debug diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h index c240bdf824f2..e85366ceb15a 100644 --- a/drivers/acpi/acpica/acmacros.h +++ b/drivers/acpi/acpica/acmacros.h @@ -220,6 +220,15 @@ #define ACPI_MUL_32(a) _ACPI_MUL(a, 5) #define ACPI_MOD_32(a) _ACPI_MOD(a, 32) +/* Test for ASCII character */ + +#define ACPI_IS_ASCII(c) ((c) < 0x80) + +/* Signed integers */ + +#define ACPI_SIGN_POSITIVE 0 +#define ACPI_SIGN_NEGATIVE 1 + /* * Rounding macros (Power of two boundaries only) */ diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index 0dd088290d80..ea0d9076d408 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -272,17 +272,20 @@ acpi_ns_check_package(struct acpi_evaluate_info *info, */ u32 acpi_ns_opens_scope(acpi_object_type type); -acpi_status -acpi_ns_build_external_path(struct acpi_namespace_node *node, - acpi_size size, char *name_buffer); - char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node); +u32 +acpi_ns_build_normalized_path(struct acpi_namespace_node *node, + char *full_path, u32 path_size, u8 no_trailing); + +char *acpi_ns_get_normalized_pathname(struct acpi_namespace_node *node, + u8 no_trailing); + char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state); acpi_status acpi_ns_handle_to_pathname(acpi_handle target_handle, - struct acpi_buffer *buffer); + struct acpi_buffer *buffer, u8 no_trailing); u8 acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for); diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h index c81d98d09cac..0bd02c4a5f75 100644 --- a/drivers/acpi/acpica/acobject.h +++ b/drivers/acpi/acpica/acobject.h @@ -176,6 +176,7 @@ struct acpi_object_method { u8 param_count; u8 sync_level; union acpi_operand_object *mutex; + union acpi_operand_object *node; u8 *aml_start; union { acpi_internal_method implementation; diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h index 0cdd2fce493a..6021ccfb0b1c 100644 --- a/drivers/acpi/acpica/acparser.h +++ b/drivers/acpi/acpica/acparser.h @@ -225,11 +225,11 @@ void acpi_ps_delete_parse_tree(union acpi_parse_object *root); /* * psutils - parser utilities */ -union acpi_parse_object *acpi_ps_create_scope_op(void); +union acpi_parse_object *acpi_ps_create_scope_op(u8 *aml); void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode); -union acpi_parse_object *acpi_ps_alloc_op(u16 opcode); +union acpi_parse_object *acpi_ps_alloc_op(u16 opcode, u8 *aml); void acpi_ps_free_op(union acpi_parse_object *op); diff --git a/drivers/acpi/acpica/acstruct.h b/drivers/acpi/acpica/acstruct.h index 44997ca02ae2..f9992dced1f9 100644 --- a/drivers/acpi/acpica/acstruct.h +++ b/drivers/acpi/acpica/acstruct.h @@ -85,7 +85,7 @@ struct acpi_walk_state { u8 namespace_override; /* Override existing objects */ u8 result_size; /* Total elements for the result stack */ u8 result_count; /* Current number of occupied elements of result stack */ - u32 aml_offset; + u8 *aml; u32 arg_types; u32 method_breakpoint; /* For single stepping */ u32 user_breakpoint; /* User AML breakpoint */ diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h index 7e0b6f1bec9c..f7731f260c31 100644 --- a/drivers/acpi/acpica/actables.h +++ b/drivers/acpi/acpica/actables.h @@ -154,14 +154,20 @@ void acpi_tb_check_dsdt_header(void); struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index); void -acpi_tb_install_table_with_override(u32 table_index, - struct acpi_table_desc *new_table_desc, - u8 override); +acpi_tb_install_table_with_override(struct acpi_table_desc *new_table_desc, + u8 override, u32 *table_index); acpi_status acpi_tb_install_fixed_table(acpi_physical_address address, - char *signature, u32 table_index); + char *signature, u32 *table_index); acpi_status acpi_tb_parse_root_table(acpi_physical_address rsdp_address); +u8 acpi_is_valid_signature(char *signature); + +/* + * tbxfload + */ +acpi_status acpi_tb_load_namespace(void); + #endif /* __ACTABLES_H__ */ diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 6de0d3573037..fb2aa5066f3f 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -167,6 +167,17 @@ struct acpi_pkg_info { #define DB_QWORD_DISPLAY 8 /* + * utnonansi - Non-ANSI C library functions + */ +void acpi_ut_strupr(char *src_string); + +void acpi_ut_strlwr(char *src_string); + +int acpi_ut_stricmp(char *string1, char *string2); + +acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer); + +/* * utglobal - Global data structures and procedures */ acpi_status acpi_ut_init_globals(void); @@ -205,8 +216,6 @@ acpi_status acpi_ut_hardware_initialize(void); void acpi_ut_subsystem_shutdown(void); -#define ACPI_IS_ASCII(c) ((c) < 0x80) - /* * utcopy - Object construction and conversion interfaces */ @@ -508,7 +517,7 @@ const struct acpi_exception_info *acpi_ut_validate_exception(acpi_status u8 acpi_ut_is_pci_root_bridge(char *id); -#if (defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP) +#if (defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP || defined ACPI_NAMES_APP) u8 acpi_ut_is_aml_table(struct acpi_table_header *table); #endif @@ -567,16 +576,6 @@ acpi_ut_get_resource_end_tag(union acpi_operand_object *obj_desc, u8 **end_tag); /* * utstring - String and character utilities */ -void acpi_ut_strupr(char *src_string); - -#ifdef ACPI_ASL_COMPILER -void acpi_ut_strlwr(char *src_string); - -int acpi_ut_stricmp(char *string1, char *string2); -#endif - -acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer); - void acpi_ut_print_string(char *string, u16 max_length); #if defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c index 3e6989738e85..e2ab59e39162 100644 --- a/drivers/acpi/acpica/dsargs.c +++ b/drivers/acpi/acpica/dsargs.c @@ -86,7 +86,7 @@ acpi_ds_execute_arguments(struct acpi_namespace_node *node, /* Allocate a new parser op to be the root of the parsed tree */ - op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP); + op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP, aml_start); if (!op) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -129,7 +129,7 @@ acpi_ds_execute_arguments(struct acpi_namespace_node *node, /* Evaluate the deferred arguments */ - op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP); + op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP, aml_start); if (!op) { return_ACPI_STATUS(AE_NO_MEMORY); } diff --git a/drivers/acpi/acpica/dscontrol.c b/drivers/acpi/acpica/dscontrol.c index 39da9da62bbf..435fc16e2f83 100644 --- a/drivers/acpi/acpica/dscontrol.c +++ b/drivers/acpi/acpica/dscontrol.c @@ -212,7 +212,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, */ control_state->control.loop_count++; if (control_state->control.loop_count > - ACPI_MAX_LOOP_ITERATIONS) { + acpi_gbl_max_loop_iterations) { status = AE_AML_INFINITE_LOOP; break; } diff --git a/drivers/acpi/acpica/dsdebug.c b/drivers/acpi/acpica/dsdebug.c new file mode 100644 index 000000000000..309556efc553 --- /dev/null +++ b/drivers/acpi/acpica/dsdebug.c @@ -0,0 +1,231 @@ +/****************************************************************************** + * + * Module Name: dsdebug - Parser/Interpreter interface - debugging + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acdispat.h" +#include "acnamesp.h" +#ifdef ACPI_DISASSEMBLER +#include "acdisasm.h" +#endif +#include "acinterp.h" + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dsdebug") + +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) +/* Local prototypes */ +static void +acpi_ds_print_node_pathname(struct acpi_namespace_node *node, + const char *message); + +/******************************************************************************* + * + * FUNCTION: acpi_ds_print_node_pathname + * + * PARAMETERS: node - Object + * message - Prefix message + * + * DESCRIPTION: Print an object's full namespace pathname + * Manages allocation/freeing of a pathname buffer + * + ******************************************************************************/ + +static void +acpi_ds_print_node_pathname(struct acpi_namespace_node *node, + const char *message) +{ + struct acpi_buffer buffer; + acpi_status status; + + ACPI_FUNCTION_TRACE(ds_print_node_pathname); + + if (!node) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DISPATCH, "[NULL NAME]")); + return_VOID; + } + + /* Convert handle to full pathname and print it (with supplied message) */ + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + + status = acpi_ns_handle_to_pathname(node, &buffer, TRUE); + if (ACPI_SUCCESS(status)) { + if (message) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DISPATCH, "%s ", + message)); + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DISPATCH, "[%s] (Node %p)", + (char *)buffer.pointer, node)); + ACPI_FREE(buffer.pointer); + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_dump_method_stack + * + * PARAMETERS: status - Method execution status + * walk_state - Current state of the parse tree walk + * op - Executing parse op + * + * RETURN: None + * + * DESCRIPTION: Called when a method has been aborted because of an error. + * Dumps the method execution stack. + * + ******************************************************************************/ + +void +acpi_ds_dump_method_stack(acpi_status status, + struct acpi_walk_state *walk_state, + union acpi_parse_object *op) +{ + union acpi_parse_object *next; + struct acpi_thread_state *thread; + struct acpi_walk_state *next_walk_state; + struct acpi_namespace_node *previous_method = NULL; + union acpi_operand_object *method_desc; + + ACPI_FUNCTION_TRACE(ds_dump_method_stack); + + /* Ignore control codes, they are not errors */ + + if ((status & AE_CODE_MASK) == AE_CODE_CONTROL) { + return_VOID; + } + + /* We may be executing a deferred opcode */ + + if (walk_state->deferred_node) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Executing subtree for Buffer/Package/Region\n")); + return_VOID; + } + + /* + * If there is no Thread, we are not actually executing a method. + * This can happen when the iASL compiler calls the interpreter + * to perform constant folding. + */ + thread = walk_state->thread; + if (!thread) { + return_VOID; + } + + /* Display exception and method name */ + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "\n**** Exception %s during execution of method ", + acpi_format_exception(status))); + acpi_ds_print_node_pathname(walk_state->method_node, NULL); + + /* Display stack of executing methods */ + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DISPATCH, + "\n\nMethod Execution Stack:\n")); + next_walk_state = thread->walk_state_list; + + /* Walk list of linked walk states */ + + while (next_walk_state) { + method_desc = next_walk_state->method_desc; + if (method_desc) { + acpi_ex_stop_trace_method((struct acpi_namespace_node *) + method_desc->method.node, + method_desc, walk_state); + } + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + " Method [%4.4s] executing: ", + acpi_ut_get_node_name(next_walk_state-> + method_node))); + + /* First method is the currently executing method */ + + if (next_walk_state == walk_state) { + if (op) { + + /* Display currently executing ASL statement */ + + next = op->common.next; + op->common.next = NULL; + +#ifdef ACPI_DISASSEMBLER + acpi_dm_disassemble(next_walk_state, op, + ACPI_UINT32_MAX); +#endif + op->common.next = next; + } + } else { + /* + * This method has called another method + * NOTE: the method call parse subtree is already deleted at this + * point, so we cannot disassemble the method invocation. + */ + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DISPATCH, + "Call to method ")); + acpi_ds_print_node_pathname(previous_method, NULL); + } + + previous_method = next_walk_state->method_node; + next_walk_state = next_walk_state->next; + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DISPATCH, "\n")); + } + + return_VOID; +} + +#else +void +acpi_ds_dump_method_stack(acpi_status status, + struct acpi_walk_state *walk_state, + union acpi_parse_object *op) +{ + return; +} + +#endif diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c index 95779e8ec3bb..920f1b199bc6 100644 --- a/drivers/acpi/acpica/dsinit.c +++ b/drivers/acpi/acpica/dsinit.c @@ -237,12 +237,22 @@ acpi_ds_initialize_objects(u32 table_index, return_ACPI_STATUS(status); } + /* DSDT is always the first AML table */ + + if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT)) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, + "\nInitializing Namespace objects:\n")); + } + + /* Summary of objects initialized */ + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "Table [%4.4s] (id %4.4X) - %4u Objects with %3u Devices, " - "%3u Regions, %3u Methods (%u/%u/%u Serial/Non/Cvt)\n", - table->signature, owner_id, info.object_count, - info.device_count, info.op_region_count, - info.method_count, info.serial_method_count, + "Table [%4.4s:%8.8s] (id %.2X) - %4u Objects with %3u Devices, " + "%3u Regions, %4u Methods (%u/%u/%u Serial/Non/Cvt)\n", + table->signature, table->oem_table_id, owner_id, + info.object_count, info.device_count, + info.op_region_count, info.method_count, + info.serial_method_count, info.non_serial_method_count, info.serialized_method_count)); diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index 85bb951430d9..bc32f3194afe 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -46,11 +46,9 @@ #include "acdispat.h" #include "acinterp.h" #include "acnamesp.h" -#ifdef ACPI_DISASSEMBLER -#include "acdisasm.h" -#endif #include "acparser.h" #include "amlcode.h" +#include "acdebug.h" #define _COMPONENT ACPI_DISPATCHER ACPI_MODULE_NAME("dsmethod") @@ -103,7 +101,7 @@ acpi_ds_auto_serialize_method(struct acpi_namespace_node *node, /* Create/Init a root op for the method parse tree */ - op = acpi_ps_alloc_op(AML_METHOD_OP); + op = acpi_ps_alloc_op(AML_METHOD_OP, obj_desc->method.aml_start); if (!op) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -205,7 +203,7 @@ acpi_ds_detect_named_opcodes(struct acpi_walk_state *walk_state, * RETURN: Status * * DESCRIPTION: Called on method error. Invoke the global exception handler if - * present, dump the method data if the disassembler is configured + * present, dump the method data if the debugger is configured * * Note: Allows the exception handler to change the status code * @@ -214,6 +212,8 @@ acpi_ds_detect_named_opcodes(struct acpi_walk_state *walk_state, acpi_status acpi_ds_method_error(acpi_status status, struct acpi_walk_state * walk_state) { + u32 aml_offset; + ACPI_FUNCTION_ENTRY(); /* Ignore AE_OK and control exception codes */ @@ -234,26 +234,30 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state * walk_state) * Handler can map the exception code to anything it wants, including * AE_OK, in which case the executing method will not be aborted. */ + aml_offset = (u32)ACPI_PTR_DIFF(walk_state->aml, + walk_state->parser_state. + aml_start); + status = acpi_gbl_exception_handler(status, walk_state->method_node ? walk_state->method_node-> name.integer : 0, walk_state->opcode, - walk_state->aml_offset, - NULL); + aml_offset, NULL); acpi_ex_enter_interpreter(); } acpi_ds_clear_implicit_return(walk_state); -#ifdef ACPI_DISASSEMBLER if (ACPI_FAILURE(status)) { + acpi_ds_dump_method_stack(status, walk_state, walk_state->op); - /* Display method locals/args if disassembler is present */ + /* Display method locals/args if debugger is present */ - acpi_dm_dump_method_info(status, walk_state, walk_state->op); - } +#ifdef ACPI_DEBUGGER + acpi_db_dump_method_info(status, walk_state); #endif + } return (status); } @@ -328,6 +332,8 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node, return_ACPI_STATUS(AE_NULL_ENTRY); } + acpi_ex_start_trace_method(method_node, obj_desc, walk_state); + /* Prevent wraparound of thread count */ if (obj_desc->method.thread_count == ACPI_UINT8_MAX) { @@ -574,9 +580,7 @@ cleanup: /* On error, we must terminate the method properly */ acpi_ds_terminate_control_method(obj_desc, next_walk_state); - if (next_walk_state) { - acpi_ds_delete_walk_state(next_walk_state); - } + acpi_ds_delete_walk_state(next_walk_state); return_ACPI_STATUS(status); } @@ -826,5 +830,8 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, } } + acpi_ex_stop_trace_method((struct acpi_namespace_node *)method_desc-> + method.node, method_desc, walk_state); + return_VOID; } diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c index ea0cc4e08f80..81d7b9863e32 100644 --- a/drivers/acpi/acpica/dsopcode.c +++ b/drivers/acpi/acpica/dsopcode.c @@ -480,8 +480,8 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state, union acpi_operand_object **operand; struct acpi_namespace_node *node; union acpi_parse_object *next_op; - u32 table_index; struct acpi_table_header *table; + u32 table_index; ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op); @@ -504,6 +504,8 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state, return_ACPI_STATUS(status); } + operand = &walk_state->operands[0]; + /* * Resolve the Signature string, oem_id string, * and oem_table_id string operands @@ -511,32 +513,34 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state, status = acpi_ex_resolve_operands(op->common.aml_opcode, ACPI_WALK_OPERANDS, walk_state); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + goto cleanup; } - operand = &walk_state->operands[0]; - /* Find the ACPI table */ status = acpi_tb_find_table(operand[0]->string.pointer, operand[1]->string.pointer, operand[2]->string.pointer, &table_index); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + if (status == AE_NOT_FOUND) { + ACPI_ERROR((AE_INFO, + "ACPI Table [%4.4s] OEM:(%s, %s) not found in RSDT/XSDT", + operand[0]->string.pointer, + operand[1]->string.pointer, + operand[2]->string.pointer)); + } + goto cleanup; } - acpi_ut_remove_reference(operand[0]); - acpi_ut_remove_reference(operand[1]); - acpi_ut_remove_reference(operand[2]); - status = acpi_get_table_by_index(table_index, &table); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + goto cleanup; } obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { - return_ACPI_STATUS(AE_NOT_EXIST); + status = AE_NOT_EXIST; + goto cleanup; } obj_desc->region.address = ACPI_PTR_TO_PHYSADDR(table); @@ -551,6 +555,11 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state, obj_desc->region.flags |= AOPOBJ_DATA_VALID; +cleanup: + acpi_ut_remove_reference(operand[0]); + acpi_ut_remove_reference(operand[1]); + acpi_ut_remove_reference(operand[2]); + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index 845ff44919c3..097188a6b1c1 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c @@ -388,7 +388,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, /* Create a new op */ - op = acpi_ps_alloc_op(walk_state->opcode); + op = acpi_ps_alloc_op(walk_state->opcode, walk_state->aml); if (!op) { return_ACPI_STATUS(AE_NO_MEMORY); } diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c index fcaa30c611fb..e2c08cd79aca 100644 --- a/drivers/acpi/acpica/dswload2.c +++ b/drivers/acpi/acpica/dswload2.c @@ -335,7 +335,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, /* Create a new op */ - op = acpi_ps_alloc_op(walk_state->opcode); + op = acpi_ps_alloc_op(walk_state->opcode, walk_state->aml); if (!op) { return_ACPI_STATUS(AE_NO_MEMORY); } diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index 2ba28a63fb68..5ee79a16fe33 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -626,9 +626,17 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, acpi_adr_space_type space_id) { acpi_status status; + struct acpi_reg_walk_info info; ACPI_FUNCTION_TRACE(ev_execute_reg_methods); + info.space_id = space_id; + info.reg_run_count = 0; + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_NAMES, + " Running _REG methods for SpaceId %s\n", + acpi_ut_get_region_name(info.space_id))); + /* * Run all _REG methods for all Operation Regions for this space ID. This * is a separate walk in order to handle any interdependencies between @@ -637,7 +645,7 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, */ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run, - NULL, &space_id, NULL); + NULL, &info, NULL); /* Special case for EC: handle "orphan" _REG methods with no region */ @@ -645,6 +653,11 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, acpi_ev_orphan_ec_reg_method(node); } + ACPI_DEBUG_PRINT_RAW((ACPI_DB_NAMES, + " Executed %u _REG methods for SpaceId %s\n", + info.reg_run_count, + acpi_ut_get_region_name(info.space_id))); + return_ACPI_STATUS(status); } @@ -664,10 +677,10 @@ acpi_ev_reg_run(acpi_handle obj_handle, { union acpi_operand_object *obj_desc; struct acpi_namespace_node *node; - acpi_adr_space_type space_id; acpi_status status; + struct acpi_reg_walk_info *info; - space_id = *ACPI_CAST_PTR(acpi_adr_space_type, context); + info = ACPI_CAST_PTR(struct acpi_reg_walk_info, context); /* Convert and validate the device handle */ @@ -696,13 +709,14 @@ acpi_ev_reg_run(acpi_handle obj_handle, /* Object is a Region */ - if (obj_desc->region.space_id != space_id) { + if (obj_desc->region.space_id != info->space_id) { /* This region is for a different address space, just ignore it */ return (AE_OK); } + info->reg_run_count++; status = acpi_ev_execute_reg_method(obj_desc, ACPI_REG_CONNECT); return (status); } diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index 24a4c5c2b124..b540913c11ac 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -162,14 +162,6 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, ACPI_FUNCTION_TRACE(ex_load_table_op); - /* Validate lengths for the Signature, oem_id, and oem_table_id strings */ - - if ((operand[0]->string.length > ACPI_NAME_SIZE) || - (operand[1]->string.length > ACPI_OEM_ID_SIZE) || - (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) { - return_ACPI_STATUS(AE_AML_STRING_LIMIT); - } - /* Find the ACPI table in the RSDT/XSDT */ status = acpi_tb_find_table(operand[0]->string.pointer, diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c index aaeea4840aaa..ccb7219bdcee 100644 --- a/drivers/acpi/acpica/excreate.c +++ b/drivers/acpi/acpica/excreate.c @@ -486,6 +486,7 @@ acpi_ex_create_method(u8 * aml_start, obj_desc->method.aml_start = aml_start; obj_desc->method.aml_length = aml_length; + obj_desc->method.node = operand[0]; /* * Disassemble the method flags. Split off the arg_count, Serialized diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c index 815442bbd051..de92458236f5 100644 --- a/drivers/acpi/acpica/exdebug.c +++ b/drivers/acpi/acpica/exdebug.c @@ -43,11 +43,21 @@ #include <acpi/acpi.h> #include "accommon.h" +#include "acnamesp.h" #include "acinterp.h" +#include "acparser.h" #define _COMPONENT ACPI_EXECUTER ACPI_MODULE_NAME("exdebug") +static union acpi_operand_object *acpi_gbl_trace_method_object = NULL; + +/* Local prototypes */ + +#ifdef ACPI_DEBUG_OUTPUT +static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type); +#endif + #ifndef ACPI_NO_ERROR_MESSAGES /******************************************************************************* * @@ -70,6 +80,7 @@ ACPI_MODULE_NAME("exdebug") * enabled if necessary. * ******************************************************************************/ + void acpi_ex_do_debug_object(union acpi_operand_object *source_desc, u32 level, u32 index) @@ -308,3 +319,316 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc, return_VOID; } #endif + +/******************************************************************************* + * + * FUNCTION: acpi_ex_interpreter_trace_enabled + * + * PARAMETERS: name - Whether method name should be matched, + * this should be checked before starting + * the tracer + * + * RETURN: TRUE if interpreter trace is enabled. + * + * DESCRIPTION: Check whether interpreter trace is enabled + * + ******************************************************************************/ + +static u8 acpi_ex_interpreter_trace_enabled(char *name) +{ + + /* Check if tracing is enabled */ + + if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED)) { + return (FALSE); + } + + /* + * Check if tracing is filtered: + * + * 1. If the tracer is started, acpi_gbl_trace_method_object should have + * been filled by the trace starter + * 2. If the tracer is not started, acpi_gbl_trace_method_name should be + * matched if it is specified + * 3. If the tracer is oneshot style, acpi_gbl_trace_method_name should + * not be cleared by the trace stopper during the first match + */ + if (acpi_gbl_trace_method_object) { + return (TRUE); + } + if (name && + (acpi_gbl_trace_method_name && + strcmp(acpi_gbl_trace_method_name, name))) { + return (FALSE); + } + if ((acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) && + !acpi_gbl_trace_method_name) { + return (FALSE); + } + + return (TRUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_get_trace_event_name + * + * PARAMETERS: type - Trace event type + * + * RETURN: Trace event name. + * + * DESCRIPTION: Used to obtain the full trace event name. + * + ******************************************************************************/ + +#ifdef ACPI_DEBUG_OUTPUT + +static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type) +{ + switch (type) { + case ACPI_TRACE_AML_METHOD: + + return "Method"; + + case ACPI_TRACE_AML_OPCODE: + + return "Opcode"; + + case ACPI_TRACE_AML_REGION: + + return "Region"; + + default: + + return ""; + } +} + +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ex_trace_point + * + * PARAMETERS: type - Trace event type + * begin - TRUE if before execution + * aml - Executed AML address + * pathname - Object path + * + * RETURN: None + * + * DESCRIPTION: Internal interpreter execution trace. + * + ******************************************************************************/ + +void +acpi_ex_trace_point(acpi_trace_event_type type, + u8 begin, u8 *aml, char *pathname) +{ + + ACPI_FUNCTION_NAME(ex_trace_point); + + if (pathname) { + ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT, + "%s %s [0x%p:%s] execution.\n", + acpi_ex_get_trace_event_name(type), + begin ? "Begin" : "End", aml, pathname)); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT, + "%s %s [0x%p] execution.\n", + acpi_ex_get_trace_event_name(type), + begin ? "Begin" : "End", aml)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_start_trace_method + * + * PARAMETERS: method_node - Node of the method + * obj_desc - The method object + * walk_state - current state, NULL if not yet executing + * a method. + * + * RETURN: None + * + * DESCRIPTION: Start control method execution trace + * + ******************************************************************************/ + +void +acpi_ex_start_trace_method(struct acpi_namespace_node *method_node, + union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + char *pathname = NULL; + u8 enabled = FALSE; + + ACPI_FUNCTION_NAME(ex_start_trace_method); + + if (method_node) { + pathname = acpi_ns_get_normalized_pathname(method_node, TRUE); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto exit; + } + + enabled = acpi_ex_interpreter_trace_enabled(pathname); + if (enabled && !acpi_gbl_trace_method_object) { + acpi_gbl_trace_method_object = obj_desc; + acpi_gbl_original_dbg_level = acpi_dbg_level; + acpi_gbl_original_dbg_layer = acpi_dbg_layer; + acpi_dbg_level = ACPI_TRACE_LEVEL_ALL; + acpi_dbg_layer = ACPI_TRACE_LAYER_ALL; + + if (acpi_gbl_trace_dbg_level) { + acpi_dbg_level = acpi_gbl_trace_dbg_level; + } + if (acpi_gbl_trace_dbg_layer) { + acpi_dbg_layer = acpi_gbl_trace_dbg_layer; + } + } + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + +exit: + if (enabled) { + ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, TRUE, + obj_desc ? obj_desc->method.aml_start : NULL, + pathname); + } + if (pathname) { + ACPI_FREE(pathname); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_stop_trace_method + * + * PARAMETERS: method_node - Node of the method + * obj_desc - The method object + * walk_state - current state, NULL if not yet executing + * a method. + * + * RETURN: None + * + * DESCRIPTION: Stop control method execution trace + * + ******************************************************************************/ + +void +acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node, + union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + char *pathname = NULL; + u8 enabled; + + ACPI_FUNCTION_NAME(ex_stop_trace_method); + + if (method_node) { + pathname = acpi_ns_get_normalized_pathname(method_node, TRUE); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto exit_path; + } + + enabled = acpi_ex_interpreter_trace_enabled(NULL); + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + + if (enabled) { + ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, FALSE, + obj_desc ? obj_desc->method.aml_start : NULL, + pathname); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto exit_path; + } + + /* Check whether the tracer should be stopped */ + + if (acpi_gbl_trace_method_object == obj_desc) { + + /* Disable further tracing if type is one-shot */ + + if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) { + acpi_gbl_trace_method_name = NULL; + } + + acpi_dbg_level = acpi_gbl_original_dbg_level; + acpi_dbg_layer = acpi_gbl_original_dbg_layer; + acpi_gbl_trace_method_object = NULL; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + +exit_path: + if (pathname) { + ACPI_FREE(pathname); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_start_trace_opcode + * + * PARAMETERS: op - The parser opcode object + * walk_state - current state, NULL if not yet executing + * a method. + * + * RETURN: None + * + * DESCRIPTION: Start opcode execution trace + * + ******************************************************************************/ + +void +acpi_ex_start_trace_opcode(union acpi_parse_object *op, + struct acpi_walk_state *walk_state) +{ + + ACPI_FUNCTION_NAME(ex_start_trace_opcode); + + if (acpi_ex_interpreter_trace_enabled(NULL) && + (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) { + ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, TRUE, + op->common.aml, op->common.aml_op_name); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_stop_trace_opcode + * + * PARAMETERS: op - The parser opcode object + * walk_state - current state, NULL if not yet executing + * a method. + * + * RETURN: None + * + * DESCRIPTION: Stop opcode execution trace + * + ******************************************************************************/ + +void +acpi_ex_stop_trace_opcode(union acpi_parse_object *op, + struct acpi_walk_state *walk_state) +{ + + ACPI_FUNCTION_NAME(ex_stop_trace_opcode); + + if (acpi_ex_interpreter_trace_enabled(NULL) && + (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) { + ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, FALSE, + op->common.aml, op->common.aml_op_name); + } +} diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c index 401e7edcd419..d836f888bb16 100644 --- a/drivers/acpi/acpica/exdump.c +++ b/drivers/acpi/acpica/exdump.c @@ -995,9 +995,8 @@ static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc) if (obj_desc->reference.class == ACPI_REFCLASS_NAME) { acpi_os_printf(" %p ", obj_desc->reference.node); - status = - acpi_ns_handle_to_pathname(obj_desc->reference.node, - &ret_buf); + status = acpi_ns_handle_to_pathname(obj_desc->reference.node, + &ret_buf, TRUE); if (ACPI_FAILURE(status)) { acpi_os_printf(" Could not convert name to pathname\n"); } else { diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c index c7e3b929aa85..1b372ef69308 100644 --- a/drivers/acpi/acpica/exresnte.c +++ b/drivers/acpi/acpica/exresnte.c @@ -126,7 +126,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, if (!source_desc) { ACPI_ERROR((AE_INFO, "No object attached to node [%4.4s] %p", node->name.ascii, node)); - return_ACPI_STATUS(AE_AML_NO_OPERAND); + return_ACPI_STATUS(AE_AML_UNINITIALIZED_NODE); } /* diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c index b6b7f3af29e4..7b109128b035 100644 --- a/drivers/acpi/acpica/exresolv.c +++ b/drivers/acpi/acpica/exresolv.c @@ -337,8 +337,9 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, acpi_object_type * return_type, union acpi_operand_object **return_desc) { - union acpi_operand_object *obj_desc = (void *)operand; - struct acpi_namespace_node *node; + union acpi_operand_object *obj_desc = ACPI_CAST_PTR(void, operand); + struct acpi_namespace_node *node = + ACPI_CAST_PTR(struct acpi_namespace_node, operand); acpi_object_type type; acpi_status status; @@ -355,9 +356,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, case ACPI_DESC_TYPE_NAMED: type = ((struct acpi_namespace_node *)obj_desc)->type; - obj_desc = - acpi_ns_get_attached_object((struct acpi_namespace_node *) - obj_desc); + obj_desc = acpi_ns_get_attached_object(node); /* If we had an Alias node, use the attached object for type info */ @@ -368,6 +367,13 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, acpi_namespace_node *) obj_desc); } + + if (!obj_desc) { + ACPI_ERROR((AE_INFO, + "[%4.4s] Node is unresolved or uninitialized", + acpi_ut_get_node_name(node))); + return_ACPI_STATUS(AE_AML_UNINITIALIZED_NODE); + } break; default: diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c index 52dfd0d050fa..d62a61612b3f 100644 --- a/drivers/acpi/acpica/hwxfsleep.c +++ b/drivers/acpi/acpica/hwxfsleep.c @@ -160,19 +160,8 @@ acpi_set_firmware_waking_vectors(acpi_physical_address physical_address, ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vectors); - /* If Hardware Reduced flag is set, there is no FACS */ - - if (acpi_gbl_reduced_hardware) { - return_ACPI_STATUS (AE_OK); - } - - if (acpi_gbl_facs32) { - (void)acpi_hw_set_firmware_waking_vectors(acpi_gbl_facs32, - physical_address, - physical_address64); - } - if (acpi_gbl_facs64) { - (void)acpi_hw_set_firmware_waking_vectors(acpi_gbl_facs64, + if (acpi_gbl_FACS) { + (void)acpi_hw_set_firmware_waking_vectors(acpi_gbl_FACS, physical_address, physical_address64); } diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c index 80670cb32b5a..7eba578d36f3 100644 --- a/drivers/acpi/acpica/nseval.c +++ b/drivers/acpi/acpica/nseval.c @@ -274,6 +274,7 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info) acpi_ex_exit_interpreter(); if (ACPI_FAILURE(status)) { + info->return_object = NULL; goto cleanup; } @@ -464,7 +465,8 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj, status = acpi_ns_evaluate(info); - ACPI_DEBUG_PRINT((ACPI_DB_INIT, "Executed module-level code at %p\n", + ACPI_DEBUG_PRINT((ACPI_DB_INIT_NAMES, + "Executed module-level code at %p\n", method_obj->method.aml_start)); /* Delete a possible implicit return value (in slack mode) */ diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c index bd6cd4a81316..14ab83668207 100644 --- a/drivers/acpi/acpica/nsload.c +++ b/drivers/acpi/acpica/nsload.c @@ -111,7 +111,21 @@ acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node) if (ACPI_SUCCESS(status)) { acpi_tb_set_table_loaded_flag(table_index, TRUE); } else { - (void)acpi_tb_release_owner_id(table_index); + /* + * On error, delete any namespace objects created by this table. + * We cannot initialize these objects, so delete them. There are + * a couple of expecially bad cases: + * AE_ALREADY_EXISTS - namespace collision. + * AE_NOT_FOUND - the target of a Scope operator does not + * exist. This target of Scope must already exist in the + * namespace, as per the ACPI specification. + */ + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + acpi_ns_delete_namespace_by_owner(acpi_gbl_root_table_list. + tables[table_index].owner_id); + acpi_tb_release_owner_id(table_index); + + return_ACPI_STATUS(status); } unlock: diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c index d293d9748036..8934b4eddb73 100644 --- a/drivers/acpi/acpica/nsnames.c +++ b/drivers/acpi/acpica/nsnames.c @@ -51,73 +51,6 @@ ACPI_MODULE_NAME("nsnames") /******************************************************************************* * - * FUNCTION: acpi_ns_build_external_path - * - * PARAMETERS: node - NS node whose pathname is needed - * size - Size of the pathname - * *name_buffer - Where to return the pathname - * - * RETURN: Status - * Places the pathname into the name_buffer, in external format - * (name segments separated by path separators) - * - * DESCRIPTION: Generate a full pathaname - * - ******************************************************************************/ -acpi_status -acpi_ns_build_external_path(struct acpi_namespace_node *node, - acpi_size size, char *name_buffer) -{ - acpi_size index; - struct acpi_namespace_node *parent_node; - - ACPI_FUNCTION_ENTRY(); - - /* Special case for root */ - - index = size - 1; - if (index < ACPI_NAME_SIZE) { - name_buffer[0] = AML_ROOT_PREFIX; - name_buffer[1] = 0; - return (AE_OK); - } - - /* Store terminator byte, then build name backwards */ - - parent_node = node; - name_buffer[index] = 0; - - while ((index > ACPI_NAME_SIZE) && (parent_node != acpi_gbl_root_node)) { - index -= ACPI_NAME_SIZE; - - /* Put the name into the buffer */ - - ACPI_MOVE_32_TO_32((name_buffer + index), &parent_node->name); - parent_node = parent_node->parent; - - /* Prefix name with the path separator */ - - index--; - name_buffer[index] = ACPI_PATH_SEPARATOR; - } - - /* Overwrite final separator with the root prefix character */ - - name_buffer[index] = AML_ROOT_PREFIX; - - if (index != 0) { - ACPI_ERROR((AE_INFO, - "Could not construct external pathname; index=%u, size=%u, Path=%s", - (u32) index, (u32) size, &name_buffer[size])); - - return (AE_BAD_PARAMETER); - } - - return (AE_OK); -} - -/******************************************************************************* - * * FUNCTION: acpi_ns_get_external_pathname * * PARAMETERS: node - Namespace node whose pathname is needed @@ -130,37 +63,13 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node, * for error and debug statements. * ******************************************************************************/ - char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node) { - acpi_status status; char *name_buffer; - acpi_size size; ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node); - /* Calculate required buffer size based on depth below root */ - - size = acpi_ns_get_pathname_length(node); - if (!size) { - return_PTR(NULL); - } - - /* Allocate a buffer to be returned to caller */ - - name_buffer = ACPI_ALLOCATE_ZEROED(size); - if (!name_buffer) { - ACPI_ERROR((AE_INFO, "Could not allocate %u bytes", (u32)size)); - return_PTR(NULL); - } - - /* Build the path in the allocated buffer */ - - status = acpi_ns_build_external_path(node, size, name_buffer); - if (ACPI_FAILURE(status)) { - ACPI_FREE(name_buffer); - return_PTR(NULL); - } + name_buffer = acpi_ns_get_normalized_pathname(node, FALSE); return_PTR(name_buffer); } @@ -180,33 +89,12 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node) acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node) { acpi_size size; - struct acpi_namespace_node *next_node; ACPI_FUNCTION_ENTRY(); - /* - * Compute length of pathname as 5 * number of name segments. - * Go back up the parent tree to the root - */ - size = 0; - next_node = node; + size = acpi_ns_build_normalized_path(node, NULL, 0, FALSE); - while (next_node && (next_node != acpi_gbl_root_node)) { - if (ACPI_GET_DESCRIPTOR_TYPE(next_node) != ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, - "Invalid Namespace Node (%p) while traversing namespace", - next_node)); - return (0); - } - size += ACPI_PATH_SEGMENT_LENGTH; - next_node = next_node->parent; - } - - if (!size) { - size = 1; /* Root node case */ - } - - return (size + 1); /* +1 for null string terminator */ + return (size); } /******************************************************************************* @@ -216,6 +104,8 @@ acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node) * PARAMETERS: target_handle - Handle of named object whose name is * to be found * buffer - Where the pathname is returned + * no_trailing - Remove trailing '_' for each name + * segment * * RETURN: Status, Buffer is filled with pathname if status is AE_OK * @@ -225,7 +115,7 @@ acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node) acpi_status acpi_ns_handle_to_pathname(acpi_handle target_handle, - struct acpi_buffer * buffer) + struct acpi_buffer * buffer, u8 no_trailing) { acpi_status status; struct acpi_namespace_node *node; @@ -240,7 +130,8 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle, /* Determine size required for the caller buffer */ - required_size = acpi_ns_get_pathname_length(node); + required_size = + acpi_ns_build_normalized_path(node, NULL, 0, no_trailing); if (!required_size) { return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -254,8 +145,8 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle, /* Build the path in the caller buffer */ - status = - acpi_ns_build_external_path(node, required_size, buffer->pointer); + (void)acpi_ns_build_normalized_path(node, buffer->pointer, + required_size, no_trailing); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -264,3 +155,149 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle, (char *)buffer->pointer, (u32) required_size)); return_ACPI_STATUS(AE_OK); } + +/******************************************************************************* + * + * FUNCTION: acpi_ns_build_normalized_path + * + * PARAMETERS: node - Namespace node + * full_path - Where the path name is returned + * path_size - Size of returned path name buffer + * no_trailing - Remove trailing '_' from each name segment + * + * RETURN: Return 1 if the AML path is empty, otherwise returning (length + * of pathname + 1) which means the 'FullPath' contains a trailing + * null. + * + * DESCRIPTION: Build and return a full namespace pathname. + * Note that if the size of 'FullPath' isn't large enough to + * contain the namespace node's path name, the actual required + * buffer length is returned, and it should be greater than + * 'PathSize'. So callers are able to check the returning value + * to determine the buffer size of 'FullPath'. + * + ******************************************************************************/ + +u32 +acpi_ns_build_normalized_path(struct acpi_namespace_node *node, + char *full_path, u32 path_size, u8 no_trailing) +{ + u32 length = 0, i; + char name[ACPI_NAME_SIZE]; + u8 do_no_trailing; + char c, *left, *right; + struct acpi_namespace_node *next_node; + + ACPI_FUNCTION_TRACE_PTR(ns_build_normalized_path, node); + +#define ACPI_PATH_PUT8(path, size, byte, length) \ + do { \ + if ((length) < (size)) \ + { \ + (path)[(length)] = (byte); \ + } \ + (length)++; \ + } while (0) + + /* + * Make sure the path_size is correct, so that we don't need to + * validate both full_path and path_size. + */ + if (!full_path) { + path_size = 0; + } + + if (!node) { + goto build_trailing_null; + } + + next_node = node; + while (next_node && next_node != acpi_gbl_root_node) { + if (next_node != node) { + ACPI_PATH_PUT8(full_path, path_size, + AML_DUAL_NAME_PREFIX, length); + } + ACPI_MOVE_32_TO_32(name, &next_node->name); + do_no_trailing = no_trailing; + for (i = 0; i < 4; i++) { + c = name[4 - i - 1]; + if (do_no_trailing && c != '_') { + do_no_trailing = FALSE; + } + if (!do_no_trailing) { + ACPI_PATH_PUT8(full_path, path_size, c, length); + } + } + next_node = next_node->parent; + } + ACPI_PATH_PUT8(full_path, path_size, AML_ROOT_PREFIX, length); + + /* Reverse the path string */ + + if (length <= path_size) { + left = full_path; + right = full_path + length - 1; + while (left < right) { + c = *left; + *left++ = *right; + *right-- = c; + } + } + + /* Append the trailing null */ + +build_trailing_null: + ACPI_PATH_PUT8(full_path, path_size, '\0', length); + +#undef ACPI_PATH_PUT8 + + return_UINT32(length); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_normalized_pathname + * + * PARAMETERS: node - Namespace node whose pathname is needed + * no_trailing - Remove trailing '_' from each name segment + * + * RETURN: Pointer to storage containing the fully qualified name of + * the node, In external format (name segments separated by path + * separators.) + * + * DESCRIPTION: Used to obtain the full pathname to a namespace node, usually + * for error and debug statements. All trailing '_' will be + * removed from the full pathname if 'NoTrailing' is specified.. + * + ******************************************************************************/ + +char *acpi_ns_get_normalized_pathname(struct acpi_namespace_node *node, + u8 no_trailing) +{ + char *name_buffer; + acpi_size size; + + ACPI_FUNCTION_TRACE_PTR(ns_get_normalized_pathname, node); + + /* Calculate required buffer size based on depth below root */ + + size = acpi_ns_build_normalized_path(node, NULL, 0, no_trailing); + if (!size) { + return_PTR(NULL); + } + + /* Allocate a buffer to be returned to caller */ + + name_buffer = ACPI_ALLOCATE_ZEROED(size); + if (!name_buffer) { + ACPI_ERROR((AE_INFO, "Could not allocate %u bytes", (u32)size)); + return_PTR(NULL); + } + + /* Build the path in the allocated buffer */ + + (void)acpi_ns_build_normalized_path(node, name_buffer, size, + no_trailing); + + return_PTR(name_buffer); +} diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c index 57a4cfe547e4..3736d43b18b9 100644 --- a/drivers/acpi/acpica/nsparse.c +++ b/drivers/acpi/acpica/nsparse.c @@ -70,7 +70,7 @@ acpi_ns_one_complete_parse(u32 pass_number, { union acpi_parse_object *parse_root; acpi_status status; - u32 aml_length; + u32 aml_length; u8 *aml_start; struct acpi_walk_state *walk_state; struct acpi_table_header *table; @@ -78,6 +78,20 @@ acpi_ns_one_complete_parse(u32 pass_number, ACPI_FUNCTION_TRACE(ns_one_complete_parse); + status = acpi_get_table_by_index(table_index, &table); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Table must consist of at least a complete header */ + + if (table->length < sizeof(struct acpi_table_header)) { + return_ACPI_STATUS(AE_BAD_HEADER); + } + + aml_start = (u8 *)table + sizeof(struct acpi_table_header); + aml_length = table->length - sizeof(struct acpi_table_header); + status = acpi_tb_get_owner_id(table_index, &owner_id); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -85,7 +99,7 @@ acpi_ns_one_complete_parse(u32 pass_number, /* Create and init a Root Node */ - parse_root = acpi_ps_create_scope_op(); + parse_root = acpi_ps_create_scope_op(aml_start); if (!parse_root) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -98,23 +112,12 @@ acpi_ns_one_complete_parse(u32 pass_number, return_ACPI_STATUS(AE_NO_MEMORY); } - status = acpi_get_table_by_index(table_index, &table); + status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL, + aml_start, aml_length, NULL, + (u8)pass_number); if (ACPI_FAILURE(status)) { acpi_ds_delete_walk_state(walk_state); - acpi_ps_free_op(parse_root); - return_ACPI_STATUS(status); - } - - /* Table must consist of at least a complete header */ - - if (table->length < sizeof(struct acpi_table_header)) { - status = AE_BAD_HEADER; - } else { - aml_start = (u8 *) table + sizeof(struct acpi_table_header); - aml_length = table->length - sizeof(struct acpi_table_header); - status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL, - aml_start, aml_length, NULL, - (u8) pass_number); + goto cleanup; } /* Found OSDT table, enable the namespace override feature */ @@ -124,11 +127,6 @@ acpi_ns_one_complete_parse(u32 pass_number, walk_state->namespace_override = TRUE; } - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - /* start_node is the default location to load the table */ if (start_node && start_node != acpi_gbl_root_node) { diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index 8d8104b8bd28..de325ae04ce1 100644 --- a/drivers/acpi/acpica/nsutils.c +++ b/drivers/acpi/acpica/nsutils.c @@ -83,7 +83,7 @@ acpi_ns_print_node_pathname(struct acpi_namespace_node *node, buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_ns_handle_to_pathname(node, &buffer); + status = acpi_ns_handle_to_pathname(node, &buffer, TRUE); if (ACPI_SUCCESS(status)) { if (message) { acpi_os_printf("%s ", message); @@ -596,6 +596,23 @@ void acpi_ns_terminate(void) ACPI_FUNCTION_TRACE(ns_terminate); +#ifdef ACPI_EXEC_APP + { + union acpi_operand_object *prev; + union acpi_operand_object *next; + + /* Delete any module-level code blocks */ + + next = acpi_gbl_module_code_list; + while (next) { + prev = next; + next = next->method.mutex; + prev->method.mutex = NULL; /* Clear the Mutex (cheated) field */ + acpi_ut_remove_reference(prev); + } + } +#endif + /* * Free the entire namespace -- all nodes and all objects * attached to the nodes diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c index 9ff643b9553f..4b4d2f43d406 100644 --- a/drivers/acpi/acpica/nsxfname.c +++ b/drivers/acpi/acpica/nsxfname.c @@ -172,11 +172,15 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) return (status); } - if (name_type == ACPI_FULL_PATHNAME) { + if (name_type == ACPI_FULL_PATHNAME || + name_type == ACPI_FULL_PATHNAME_NO_TRAILING) { /* Get the full pathname (From the namespace root) */ - status = acpi_ns_handle_to_pathname(handle, buffer); + status = acpi_ns_handle_to_pathname(handle, buffer, + name_type == + ACPI_FULL_PATHNAME ? FALSE : + TRUE); return (status); } diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c index 6d038770577b..29d8b7b01dca 100644 --- a/drivers/acpi/acpica/psargs.c +++ b/drivers/acpi/acpica/psargs.c @@ -287,7 +287,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, "Control Method - %p Desc %p Path=%p\n", node, method_desc, path)); - name_op = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP); + name_op = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP, start); if (!name_op) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -484,7 +484,7 @@ acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state, static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state *parser_state) { - u32 aml_offset; + u8 *aml; union acpi_parse_object *field; union acpi_parse_object *arg = NULL; u16 opcode; @@ -498,8 +498,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state ACPI_FUNCTION_TRACE(ps_get_next_field); - aml_offset = - (u32)ACPI_PTR_DIFF(parser_state->aml, parser_state->aml_start); + aml = parser_state->aml; /* Determine field type */ @@ -536,13 +535,11 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state /* Allocate a new field op */ - field = acpi_ps_alloc_op(opcode); + field = acpi_ps_alloc_op(opcode, aml); if (!field) { return_PTR(NULL); } - field->common.aml_offset = aml_offset; - /* Decode the field type */ switch (opcode) { @@ -604,6 +601,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state * Argument for Connection operator can be either a Buffer * (resource descriptor), or a name_string. */ + aml = parser_state->aml; if (ACPI_GET8(parser_state->aml) == AML_BUFFER_OP) { parser_state->aml++; @@ -616,7 +614,8 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state /* Non-empty list */ - arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP); + arg = + acpi_ps_alloc_op(AML_INT_BYTELIST_OP, aml); if (!arg) { acpi_ps_free_op(field); return_PTR(NULL); @@ -665,7 +664,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state parser_state->aml = pkg_end; } else { - arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP); + arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP, aml); if (!arg) { acpi_ps_free_op(field); return_PTR(NULL); @@ -730,7 +729,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, /* Constants, strings, and namestrings are all the same size */ - arg = acpi_ps_alloc_op(AML_BYTE_OP); + arg = acpi_ps_alloc_op(AML_BYTE_OP, parser_state->aml); if (!arg) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -777,7 +776,8 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, /* Non-empty list */ - arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP); + arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP, + parser_state->aml); if (!arg) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -807,7 +807,9 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, /* null_name or name_string */ - arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP); + arg = + acpi_ps_alloc_op(AML_INT_NAMEPATH_OP, + parser_state->aml); if (!arg) { return_ACPI_STATUS(AE_NO_MEMORY); } diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c index 90437227d790..03ac8c9a67ab 100644 --- a/drivers/acpi/acpica/psloop.c +++ b/drivers/acpi/acpica/psloop.c @@ -51,6 +51,7 @@ #include <acpi/acpi.h> #include "accommon.h" +#include "acinterp.h" #include "acparser.h" #include "acdispat.h" #include "amlcode.h" @@ -125,10 +126,7 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, */ while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) && !walk_state->arg_count) { - walk_state->aml_offset = - (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml, - walk_state->parser_state. - aml_start); + walk_state->aml = walk_state->parser_state.aml; status = acpi_ps_get_next_arg(walk_state, @@ -140,7 +138,6 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, } if (arg) { - arg->common.aml_offset = walk_state->aml_offset; acpi_ps_append_arg(op, arg); } @@ -324,6 +321,8 @@ acpi_ps_link_module_code(union acpi_parse_object *parent_op, union acpi_operand_object *method_obj; struct acpi_namespace_node *parent_node; + ACPI_FUNCTION_TRACE(ps_link_module_code); + /* Get the tail of the list */ prev = next = acpi_gbl_module_code_list; @@ -343,9 +342,13 @@ acpi_ps_link_module_code(union acpi_parse_object *parent_op, method_obj = acpi_ut_create_internal_object(ACPI_TYPE_METHOD); if (!method_obj) { - return; + return_VOID; } + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Create/Link new code block: %p\n", + method_obj)); + if (parent_op->common.node) { parent_node = parent_op->common.node; } else { @@ -370,8 +373,14 @@ acpi_ps_link_module_code(union acpi_parse_object *parent_op, prev->method.mutex = method_obj; } } else { + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Appending to existing code block: %p\n", + prev)); + prev->method.aml_length += aml_length; } + + return_VOID; } /******************************************************************************* @@ -494,16 +503,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) continue; } - op->common.aml_offset = walk_state->aml_offset; - - if (walk_state->op_info) { - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Opcode %4.4X [%s] Op %p Aml %p AmlOffset %5.5X\n", - (u32) op->common.aml_opcode, - walk_state->op_info->name, op, - parser_state->aml, - op->common.aml_offset)); - } + acpi_ex_start_trace_opcode(op, walk_state); } /* diff --git a/drivers/acpi/acpica/psobject.c b/drivers/acpi/acpica/psobject.c index 2f5ddd806c58..e54bc2aa7a88 100644 --- a/drivers/acpi/acpica/psobject.c +++ b/drivers/acpi/acpica/psobject.c @@ -66,12 +66,11 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state); static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state) { + u32 aml_offset; ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state); - walk_state->aml_offset = - (u32)ACPI_PTR_DIFF(walk_state->parser_state.aml, - walk_state->parser_state.aml_start); + walk_state->aml = walk_state->parser_state.aml; walk_state->opcode = acpi_ps_peek_opcode(&(walk_state->parser_state)); /* @@ -98,10 +97,14 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state) /* The opcode is unrecognized. Complain and skip unknown opcodes */ if (walk_state->pass_number == 2) { + aml_offset = (u32)ACPI_PTR_DIFF(walk_state->aml, + walk_state-> + parser_state.aml_start); + ACPI_ERROR((AE_INFO, "Unknown opcode 0x%.2X at table offset 0x%.4X, ignoring", walk_state->opcode, - (u32)(walk_state->aml_offset + + (u32)(aml_offset + sizeof(struct acpi_table_header)))); ACPI_DUMP_BUFFER((walk_state->parser_state.aml - 16), @@ -115,14 +118,14 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state) acpi_os_printf ("/*\nError: Unknown opcode 0x%.2X at table offset 0x%.4X, context:\n", walk_state->opcode, - (u32)(walk_state->aml_offset + + (u32)(aml_offset + sizeof(struct acpi_table_header))); /* Dump the context surrounding the invalid opcode */ acpi_ut_dump_buffer(((u8 *)walk_state->parser_state. aml - 16), 48, DB_BYTE_DISPLAY, - (walk_state->aml_offset + + (aml_offset + sizeof(struct acpi_table_header) - 16)); acpi_os_printf(" */\n"); @@ -294,7 +297,7 @@ acpi_ps_create_op(struct acpi_walk_state *walk_state, /* Create Op structure and append to parent's argument list */ walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode); - op = acpi_ps_alloc_op(walk_state->opcode); + op = acpi_ps_alloc_op(walk_state->opcode, aml_op_start); if (!op) { return_ACPI_STATUS(AE_NO_MEMORY); } diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c index a555f7f7b9a2..98001d7f6f80 100644 --- a/drivers/acpi/acpica/psparse.c +++ b/drivers/acpi/acpica/psparse.c @@ -147,6 +147,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, return_ACPI_STATUS(AE_OK); /* OK for now */ } + acpi_ex_stop_trace_opcode(op, walk_state); + /* Delete this op and the subtree below it if asked to */ if (((walk_state->parse_flags & ACPI_PARSE_TREE_MASK) != @@ -185,7 +187,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, * op must be replaced by a placeholder return op */ replacement_op = - acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP); + acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP, + op->common.aml); if (!replacement_op) { status = AE_NO_MEMORY; } @@ -209,7 +212,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, || (op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) { replacement_op = - acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP); + acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP, + op->common.aml); if (!replacement_op) { status = AE_NO_MEMORY; } @@ -224,7 +228,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, AML_VAR_PACKAGE_OP)) { replacement_op = acpi_ps_alloc_op(op->common. - aml_opcode); + aml_opcode, + op->common.aml); if (!replacement_op) { status = AE_NO_MEMORY; } else { @@ -240,7 +245,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, default: replacement_op = - acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP); + acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP, + op->common.aml); if (!replacement_op) { status = AE_NO_MEMORY; } diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c index 32440912023a..183cc1efbc51 100644 --- a/drivers/acpi/acpica/psutils.c +++ b/drivers/acpi/acpica/psutils.c @@ -60,11 +60,11 @@ ACPI_MODULE_NAME("psutils") * DESCRIPTION: Create a Scope and associated namepath op with the root name * ******************************************************************************/ -union acpi_parse_object *acpi_ps_create_scope_op(void) +union acpi_parse_object *acpi_ps_create_scope_op(u8 *aml) { union acpi_parse_object *scope_op; - scope_op = acpi_ps_alloc_op(AML_SCOPE_OP); + scope_op = acpi_ps_alloc_op(AML_SCOPE_OP, aml); if (!scope_op) { return (NULL); } @@ -103,6 +103,7 @@ void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode) * FUNCTION: acpi_ps_alloc_op * * PARAMETERS: opcode - Opcode that will be stored in the new Op + * aml - Address of the opcode * * RETURN: Pointer to the new Op, null on failure * @@ -112,7 +113,7 @@ void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode) * ******************************************************************************/ -union acpi_parse_object *acpi_ps_alloc_op(u16 opcode) +union acpi_parse_object *acpi_ps_alloc_op(u16 opcode, u8 *aml) { union acpi_parse_object *op; const struct acpi_opcode_info *op_info; @@ -149,6 +150,7 @@ union acpi_parse_object *acpi_ps_alloc_op(u16 opcode) if (op) { acpi_ps_init_op(op, opcode); + op->common.aml = aml; op->common.flags = flags; } diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c index 841a5ea06094..4254805dd319 100644 --- a/drivers/acpi/acpica/psxface.c +++ b/drivers/acpi/acpica/psxface.c @@ -47,15 +47,12 @@ #include "acdispat.h" #include "acinterp.h" #include "actables.h" +#include "acnamesp.h" #define _COMPONENT ACPI_PARSER ACPI_MODULE_NAME("psxface") /* Local Prototypes */ -static void acpi_ps_start_trace(struct acpi_evaluate_info *info); - -static void acpi_ps_stop_trace(struct acpi_evaluate_info *info); - static void acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action); @@ -76,7 +73,7 @@ acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action); ******************************************************************************/ acpi_status -acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags) +acpi_debug_trace(const char *name, u32 debug_level, u32 debug_layer, u32 flags) { acpi_status status; @@ -85,108 +82,14 @@ acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags) return (status); } - /* TBDs: Validate name, allow full path or just nameseg */ - - acpi_gbl_trace_method_name = *ACPI_CAST_PTR(u32, name); + acpi_gbl_trace_method_name = name; acpi_gbl_trace_flags = flags; - - if (debug_level) { - acpi_gbl_trace_dbg_level = debug_level; - } - if (debug_layer) { - acpi_gbl_trace_dbg_layer = debug_layer; - } + acpi_gbl_trace_dbg_level = debug_level; + acpi_gbl_trace_dbg_layer = debug_layer; + status = AE_OK; (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_start_trace - * - * PARAMETERS: info - Method info struct - * - * RETURN: None - * - * DESCRIPTION: Start control method execution trace - * - ******************************************************************************/ - -static void acpi_ps_start_trace(struct acpi_evaluate_info *info) -{ - acpi_status status; - - ACPI_FUNCTION_ENTRY(); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return; - } - - if ((!acpi_gbl_trace_method_name) || - (acpi_gbl_trace_method_name != info->node->name.integer)) { - goto exit; - } - - acpi_gbl_original_dbg_level = acpi_dbg_level; - acpi_gbl_original_dbg_layer = acpi_dbg_layer; - - acpi_dbg_level = 0x00FFFFFF; - acpi_dbg_layer = ACPI_UINT32_MAX; - - if (acpi_gbl_trace_dbg_level) { - acpi_dbg_level = acpi_gbl_trace_dbg_level; - } - if (acpi_gbl_trace_dbg_layer) { - acpi_dbg_layer = acpi_gbl_trace_dbg_layer; - } - -exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_stop_trace - * - * PARAMETERS: info - Method info struct - * - * RETURN: None - * - * DESCRIPTION: Stop control method execution trace - * - ******************************************************************************/ - -static void acpi_ps_stop_trace(struct acpi_evaluate_info *info) -{ - acpi_status status; - - ACPI_FUNCTION_ENTRY(); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return; - } - - if ((!acpi_gbl_trace_method_name) || - (acpi_gbl_trace_method_name != info->node->name.integer)) { - goto exit; - } - - /* Disable further tracing if type is one-shot */ - - if (acpi_gbl_trace_flags & 1) { - acpi_gbl_trace_method_name = 0; - acpi_gbl_trace_dbg_level = 0; - acpi_gbl_trace_dbg_layer = 0; - } - - acpi_dbg_level = acpi_gbl_original_dbg_level; - acpi_dbg_layer = acpi_gbl_original_dbg_layer; - -exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (status); } /******************************************************************************* @@ -212,7 +115,7 @@ exit: * ******************************************************************************/ -acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) +acpi_status acpi_ps_execute_method(struct acpi_evaluate_info * info) { acpi_status status; union acpi_parse_object *op; @@ -243,10 +146,6 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) */ acpi_ps_update_parameter_list(info, REF_INCREMENT); - /* Begin tracing if requested */ - - acpi_ps_start_trace(info); - /* * Execute the method. Performs parse simultaneously */ @@ -256,7 +155,7 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) /* Create and init a Root Node */ - op = acpi_ps_create_scope_op(); + op = acpi_ps_create_scope_op(info->obj_desc->method.aml_start); if (!op) { status = AE_NO_MEMORY; goto cleanup; @@ -326,10 +225,6 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) cleanup: acpi_ps_delete_parse_tree(op); - /* End optional tracing */ - - acpi_ps_stop_trace(info); - /* Take away the extra reference that we gave the parameters above */ acpi_ps_update_parameter_list(info, REF_DECREMENT); diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c index 3fa829e96c2a..a5344428f3ae 100644 --- a/drivers/acpi/acpica/rscreate.c +++ b/drivers/acpi/acpica/rscreate.c @@ -348,7 +348,8 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, status = acpi_ns_handle_to_pathname((acpi_handle) node, - &path_buffer); + &path_buffer, + FALSE); /* +1 to include null terminator */ diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 6253001b6375..455a0700db39 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -345,7 +345,7 @@ void acpi_tb_parse_fadt(u32 table_index) /* Obtain the DSDT and FACS tables via their addresses within the FADT */ acpi_tb_install_fixed_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt, - ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT); + ACPI_SIG_DSDT, &acpi_gbl_dsdt_index); /* If Hardware Reduced flag is set, there is no FACS */ @@ -354,13 +354,13 @@ void acpi_tb_parse_fadt(u32 table_index) acpi_tb_install_fixed_table((acpi_physical_address) acpi_gbl_FADT.facs, ACPI_SIG_FACS, - ACPI_TABLE_INDEX_FACS); + &acpi_gbl_facs_index); } if (acpi_gbl_FADT.Xfacs) { acpi_tb_install_fixed_table((acpi_physical_address) acpi_gbl_FADT.Xfacs, ACPI_SIG_FACS, - ACPI_TABLE_INDEX_X_FACS); + &acpi_gbl_xfacs_index); } } } diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c index 119c84ad9833..405529d49a1a 100644 --- a/drivers/acpi/acpica/tbfind.c +++ b/drivers/acpi/acpica/tbfind.c @@ -68,12 +68,25 @@ acpi_status acpi_tb_find_table(char *signature, char *oem_id, char *oem_table_id, u32 *table_index) { - u32 i; acpi_status status; struct acpi_table_header header; + u32 i; ACPI_FUNCTION_TRACE(tb_find_table); + /* Validate the input table signature */ + + if (!acpi_is_valid_signature(signature)) { + return_ACPI_STATUS(AE_BAD_SIGNATURE); + } + + /* Don't allow the OEM strings to be too long */ + + if ((strlen(oem_id) > ACPI_OEM_ID_SIZE) || + (strlen(oem_table_id) > ACPI_OEM_TABLE_ID_SIZE)) { + return_ACPI_STATUS(AE_AML_STRING_LIMIT); + } + /* Normalize the input strings */ memset(&header, 0, sizeof(struct acpi_table_header)); diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c index 15ea98e0068d..6319b42420c6 100644 --- a/drivers/acpi/acpica/tbinstal.c +++ b/drivers/acpi/acpica/tbinstal.c @@ -100,9 +100,9 @@ acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index) * * FUNCTION: acpi_tb_install_table_with_override * - * PARAMETERS: table_index - Index into root table array - * new_table_desc - New table descriptor to install + * PARAMETERS: new_table_desc - New table descriptor to install * override - Whether override should be performed + * table_index - Where the table index is returned * * RETURN: None * @@ -114,12 +114,14 @@ acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index) ******************************************************************************/ void -acpi_tb_install_table_with_override(u32 table_index, - struct acpi_table_desc *new_table_desc, - u8 override) +acpi_tb_install_table_with_override(struct acpi_table_desc *new_table_desc, + u8 override, u32 *table_index) { + u32 i; + acpi_status status; - if (table_index >= acpi_gbl_root_table_list.current_table_count) { + status = acpi_tb_get_next_table_descriptor(&i, NULL); + if (ACPI_FAILURE(status)) { return; } @@ -134,8 +136,7 @@ acpi_tb_install_table_with_override(u32 table_index, acpi_tb_override_table(new_table_desc); } - acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list. - tables[table_index], + acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list.tables[i], new_table_desc->address, new_table_desc->flags, new_table_desc->pointer); @@ -143,9 +144,13 @@ acpi_tb_install_table_with_override(u32 table_index, acpi_tb_print_table_header(new_table_desc->address, new_table_desc->pointer); + /* This synchronizes acpi_gbl_dsdt_index */ + + *table_index = i; + /* Set the global integer width (based upon revision of the DSDT) */ - if (table_index == ACPI_TABLE_INDEX_DSDT) { + if (i == acpi_gbl_dsdt_index) { acpi_ut_set_integer_width(new_table_desc->pointer->revision); } } @@ -157,7 +162,7 @@ acpi_tb_install_table_with_override(u32 table_index, * PARAMETERS: address - Physical address of DSDT or FACS * signature - Table signature, NULL if no need to * match - * table_index - Index into root table array + * table_index - Where the table index is returned * * RETURN: Status * @@ -168,7 +173,7 @@ acpi_tb_install_table_with_override(u32 table_index, acpi_status acpi_tb_install_fixed_table(acpi_physical_address address, - char *signature, u32 table_index) + char *signature, u32 *table_index) { struct acpi_table_desc new_table_desc; acpi_status status; @@ -200,7 +205,9 @@ acpi_tb_install_fixed_table(acpi_physical_address address, goto release_and_exit; } - acpi_tb_install_table_with_override(table_index, &new_table_desc, TRUE); + /* Add the table to the global root table list */ + + acpi_tb_install_table_with_override(&new_table_desc, TRUE, table_index); release_and_exit: @@ -355,13 +362,8 @@ acpi_tb_install_standard_table(acpi_physical_address address, /* Add the table to the global root table list */ - status = acpi_tb_get_next_table_descriptor(&i, NULL); - if (ACPI_FAILURE(status)) { - goto release_and_exit; - } - - *table_index = i; - acpi_tb_install_table_with_override(i, &new_table_desc, override); + acpi_tb_install_table_with_override(&new_table_desc, override, + table_index); release_and_exit: diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 568ac0e4a3c6..4337990127cc 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -68,28 +68,27 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size); acpi_status acpi_tb_initialize_facs(void) { + struct acpi_table_facs *facs; /* If Hardware Reduced flag is set, there is no FACS */ if (acpi_gbl_reduced_hardware) { acpi_gbl_FACS = NULL; return (AE_OK); - } - - (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS, - ACPI_CAST_INDIRECT_PTR(struct - acpi_table_header, - &acpi_gbl_facs32)); - (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_X_FACS, - ACPI_CAST_INDIRECT_PTR(struct - acpi_table_header, - &acpi_gbl_facs64)); - - if (acpi_gbl_facs64 - && (!acpi_gbl_facs32 || !acpi_gbl_use32_bit_facs_addresses)) { - acpi_gbl_FACS = acpi_gbl_facs64; - } else if (acpi_gbl_facs32) { - acpi_gbl_FACS = acpi_gbl_facs32; + } else if (acpi_gbl_FADT.Xfacs && + (!acpi_gbl_FADT.facs + || !acpi_gbl_use32_bit_facs_addresses)) { + (void)acpi_get_table_by_index(acpi_gbl_xfacs_index, + ACPI_CAST_INDIRECT_PTR(struct + acpi_table_header, + &facs)); + acpi_gbl_FACS = facs; + } else if (acpi_gbl_FADT.facs) { + (void)acpi_get_table_by_index(acpi_gbl_facs_index, + ACPI_CAST_INDIRECT_PTR(struct + acpi_table_header, + &facs)); + acpi_gbl_FACS = facs; } /* If there is no FACS, just continue. There was already an error msg */ @@ -192,7 +191,7 @@ struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index) acpi_tb_uninstall_table(table_desc); acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT], + tables[acpi_gbl_dsdt_index], ACPI_PTR_TO_PHYSADDR(new_table), ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL, new_table); @@ -369,13 +368,6 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) table_entry_size); table_entry = ACPI_ADD_PTR(u8, table, sizeof(struct acpi_table_header)); - /* - * First three entries in the table array are reserved for the DSDT - * and 32bit/64bit FACS, which are not actually present in the - * RSDT/XSDT - they come from the FADT - */ - acpi_gbl_root_table_list.current_table_count = 3; - /* Initialize the root table array from the RSDT/XSDT */ for (i = 0; i < table_count; i++) { @@ -412,3 +404,36 @@ next_table: return_ACPI_STATUS(AE_OK); } + +/******************************************************************************* + * + * FUNCTION: acpi_is_valid_signature + * + * PARAMETERS: signature - Sig string to be validated + * + * RETURN: TRUE if signature is correct length and has valid characters + * + * DESCRIPTION: Validate an ACPI table signature. + * + ******************************************************************************/ + +u8 acpi_is_valid_signature(char *signature) +{ + u32 i; + + /* Validate the signature length */ + + if (strlen(signature) != ACPI_NAME_SIZE) { + return (FALSE); + } + + /* Validate each character in the signature */ + + for (i = 0; i < ACPI_NAME_SIZE; i++) { + if (!acpi_ut_valid_acpi_char(signature[i], i)) { + return (FALSE); + } + } + + return (TRUE); +} diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c index 9682d40ca6ff..55ee14ca9418 100644 --- a/drivers/acpi/acpica/tbxfload.c +++ b/drivers/acpi/acpica/tbxfload.c @@ -51,9 +51,6 @@ #define _COMPONENT ACPI_TABLES ACPI_MODULE_NAME("tbxfload") -/* Local prototypes */ -static acpi_status acpi_tb_load_namespace(void); - /******************************************************************************* * * FUNCTION: acpi_load_tables @@ -65,7 +62,6 @@ static acpi_status acpi_tb_load_namespace(void); * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT * ******************************************************************************/ - acpi_status __init acpi_load_tables(void) { acpi_status status; @@ -75,6 +71,13 @@ acpi_status __init acpi_load_tables(void) /* Load the namespace from the tables */ status = acpi_tb_load_namespace(); + + /* Don't let single failures abort the load */ + + if (status == AE_CTRL_TERMINATE) { + status = AE_OK; + } + if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "While loading namespace from ACPI tables")); @@ -97,11 +100,14 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_load_tables) * the RSDT/XSDT. * ******************************************************************************/ -static acpi_status acpi_tb_load_namespace(void) +acpi_status acpi_tb_load_namespace(void) { acpi_status status; u32 i; struct acpi_table_header *new_dsdt; + struct acpi_table_desc *table; + u32 tables_loaded = 0; + u32 tables_failed = 0; ACPI_FUNCTION_TRACE(tb_load_namespace); @@ -111,15 +117,11 @@ static acpi_status acpi_tb_load_namespace(void) * Load the namespace. The DSDT is required, but any SSDT and * PSDT tables are optional. Verify the DSDT. */ + table = &acpi_gbl_root_table_list.tables[acpi_gbl_dsdt_index]; + 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_validate_table - (&acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT]))) { + !ACPI_COMPARE_NAME(table->signature.ascii, ACPI_SIG_DSDT) || + ACPI_FAILURE(acpi_tb_validate_table(table))) { status = AE_NO_ACPI_TABLES; goto unlock_and_exit; } @@ -130,8 +132,7 @@ static acpi_status acpi_tb_load_namespace(void) * array can change dynamically as tables are loaded at run-time. Note: * .Pointer field is not validated until after call to acpi_tb_validate_table. */ - acpi_gbl_DSDT = - acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer; + acpi_gbl_DSDT = table->pointer; /* * Optionally copy the entire DSDT to local memory (instead of simply @@ -140,7 +141,7 @@ static acpi_status acpi_tb_load_namespace(void) * the DSDT. */ if (acpi_gbl_copy_dsdt_locally) { - new_dsdt = acpi_tb_copy_dsdt(ACPI_TABLE_INDEX_DSDT); + new_dsdt = acpi_tb_copy_dsdt(acpi_gbl_dsdt_index); if (new_dsdt) { acpi_gbl_DSDT = new_dsdt; } @@ -157,41 +158,65 @@ static acpi_status acpi_tb_load_namespace(void) /* Load and parse tables */ - status = acpi_ns_load_table(ACPI_TABLE_INDEX_DSDT, acpi_gbl_root_node); + status = acpi_ns_load_table(acpi_gbl_dsdt_index, acpi_gbl_root_node); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + ACPI_EXCEPTION((AE_INFO, status, "[DSDT] table load failed")); + tables_failed++; + } else { + tables_loaded++; } /* 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) { + table = &acpi_gbl_root_table_list.tables[i]; + if (!acpi_gbl_root_table_list.tables[i].address || - (!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_COMPARE_NAME(& - (acpi_gbl_root_table_list.tables[i]. - signature), ACPI_SIG_OSDT)) - || - ACPI_FAILURE(acpi_tb_validate_table - (&acpi_gbl_root_table_list.tables[i]))) { + (!ACPI_COMPARE_NAME(table->signature.ascii, ACPI_SIG_SSDT) + && !ACPI_COMPARE_NAME(table->signature.ascii, + ACPI_SIG_PSDT) + && !ACPI_COMPARE_NAME(table->signature.ascii, + ACPI_SIG_OSDT)) + || ACPI_FAILURE(acpi_tb_validate_table(table))) { 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); + status = acpi_ns_load_table(i, acpi_gbl_root_node); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "(%4.4s:%8.8s) while loading table", + table->signature.ascii, + table->pointer->oem_table_id)); + tables_failed++; + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, + "Table [%4.4s:%8.8s] (id FF) - Table namespace load failed\n\n", + table->signature.ascii, + table->pointer->oem_table_id)); + } else { + tables_loaded++; + } + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); } - ACPI_INFO((AE_INFO, "All ACPI Tables successfully acquired")); + if (!tables_failed) { + ACPI_INFO((AE_INFO, + "%u ACPI AML tables successfully acquired and loaded", + tables_loaded)); + } else { + ACPI_ERROR((AE_INFO, + "%u table load failures, %u successful", + tables_failed, tables_loaded)); + + /* Indicate at least one failure */ + + status = AE_CTRL_TERMINATE; + } unlock_and_exit: (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index cd02693841db..4146229103c8 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -45,6 +45,7 @@ #include <acpi/acpi.h> #include "accommon.h" +#include "acinterp.h" #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utdebug") @@ -560,8 +561,37 @@ acpi_ut_ptr_exit(u32 line_number, } } +/******************************************************************************* + * + * FUNCTION: acpi_trace_point + * + * PARAMETERS: type - Trace event type + * begin - TRUE if before execution + * aml - Executed AML address + * pathname - Object path + * pointer - Pointer to the related object + * + * RETURN: None + * + * DESCRIPTION: Interpreter execution trace. + * + ******************************************************************************/ + +void +acpi_trace_point(acpi_trace_event_type type, u8 begin, u8 *aml, char *pathname) +{ + + ACPI_FUNCTION_ENTRY(); + + acpi_ex_trace_point(type, begin, aml, pathname); + +#ifdef ACPI_USE_SYSTEM_TRACER + acpi_os_trace_point(type, begin, aml, pathname); #endif +} +ACPI_EXPORT_SYMBOL(acpi_trace_point) +#endif #ifdef ACPI_APPLICATION /******************************************************************************* * @@ -575,7 +605,6 @@ acpi_ut_ptr_exit(u32 line_number, * DESCRIPTION: Print error message to the console, used by applications. * ******************************************************************************/ - void ACPI_INTERNAL_VAR_XFACE acpi_log_error(const char *format, ...) { va_list args; diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c index 71fce389fd48..1638312e3d8f 100644 --- a/drivers/acpi/acpica/utdelete.c +++ b/drivers/acpi/acpica/utdelete.c @@ -209,6 +209,9 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) acpi_ut_delete_object_desc(object->method.mutex); object->method.mutex = NULL; } + if (object->method.node) { + object->method.node = NULL; + } break; case ACPI_TYPE_REGION: diff --git a/drivers/acpi/acpica/utfileio.c b/drivers/acpi/acpica/utfileio.c index 857af824337b..75a94f52b4be 100644 --- a/drivers/acpi/acpica/utfileio.c +++ b/drivers/acpi/acpica/utfileio.c @@ -312,7 +312,7 @@ acpi_ut_read_table_from_file(char *filename, struct acpi_table_header ** table) /* Get the entire file */ fprintf(stderr, - "Reading ACPI table from file %10s - Length %.8u (0x%06X)\n", + "Reading ACPI table from file %12s - Length %.8u (0x%06X)\n", filename, file_size, file_size); status = acpi_ut_read_table(file, table, &table_length); diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c index e402e07b4846..28ab3a1d5ec1 100644 --- a/drivers/acpi/acpica/utinit.c +++ b/drivers/acpi/acpica/utinit.c @@ -204,11 +204,10 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_acpi_hardware_present = TRUE; acpi_gbl_last_owner_id_index = 0; acpi_gbl_next_owner_id_offset = 0; - acpi_gbl_trace_dbg_level = 0; - acpi_gbl_trace_dbg_layer = 0; acpi_gbl_debugger_configuration = DEBUGGER_THREADING; acpi_gbl_osi_mutex = NULL; acpi_gbl_reg_methods_executed = FALSE; + acpi_gbl_max_loop_iterations = 0xFFFF; /* Hardware oriented */ diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c index 71b66537f826..bd4443bdcbad 100644 --- a/drivers/acpi/acpica/utmisc.c +++ b/drivers/acpi/acpica/utmisc.c @@ -75,7 +75,7 @@ u8 acpi_ut_is_pci_root_bridge(char *id) return (FALSE); } -#if (defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP) +#if (defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP || defined ACPI_NAMES_APP) /******************************************************************************* * * FUNCTION: acpi_ut_is_aml_table @@ -376,7 +376,7 @@ acpi_ut_display_init_pathname(u8 type, /* Get the full pathname to the node */ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_ns_handle_to_pathname(obj_handle, &buffer); + status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE); if (ACPI_FAILURE(status)) { return; } diff --git a/drivers/acpi/acpica/utnonansi.c b/drivers/acpi/acpica/utnonansi.c new file mode 100644 index 000000000000..1d5f6b17b766 --- /dev/null +++ b/drivers/acpi/acpica/utnonansi.c @@ -0,0 +1,380 @@ +/******************************************************************************* + * + * Module Name: utnonansi - Non-ansi C library functions + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utnonansi") + +/* + * Non-ANSI C library functions - strlwr, strupr, stricmp, and a 64-bit + * version of strtoul. + */ +/******************************************************************************* + * + * FUNCTION: acpi_ut_strlwr (strlwr) + * + * PARAMETERS: src_string - The source string to convert + * + * RETURN: None + * + * DESCRIPTION: Convert a string to lowercase + * + ******************************************************************************/ +void acpi_ut_strlwr(char *src_string) +{ + char *string; + + ACPI_FUNCTION_ENTRY(); + + if (!src_string) { + return; + } + + /* Walk entire string, lowercasing the letters */ + + for (string = src_string; *string; string++) { + *string = (char)tolower((int)*string); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strupr (strupr) + * + * PARAMETERS: src_string - The source string to convert + * + * RETURN: None + * + * DESCRIPTION: Convert a string to uppercase + * + ******************************************************************************/ + +void acpi_ut_strupr(char *src_string) +{ + char *string; + + ACPI_FUNCTION_ENTRY(); + + if (!src_string) { + return; + } + + /* Walk entire string, uppercasing the letters */ + + for (string = src_string; *string; string++) { + *string = (char)toupper((int)*string); + } +} + +/****************************************************************************** + * + * FUNCTION: acpi_ut_stricmp (stricmp) + * + * PARAMETERS: string1 - first string to compare + * string2 - second string to compare + * + * RETURN: int that signifies string relationship. Zero means strings + * are equal. + * + * DESCRIPTION: Case-insensitive string compare. Implementation of the + * non-ANSI stricmp function. + * + ******************************************************************************/ + +int acpi_ut_stricmp(char *string1, char *string2) +{ + int c1; + int c2; + + do { + c1 = tolower((int)*string1); + c2 = tolower((int)*string2); + + string1++; + string2++; + } + while ((c1 == c2) && (c1)); + + return (c1 - c2); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strtoul64 + * + * PARAMETERS: string - Null terminated string + * base - Radix of the string: 16 or ACPI_ANY_BASE; + * ACPI_ANY_BASE means 'in behalf of to_integer' + * ret_integer - Where the converted integer is returned + * + * RETURN: Status and Converted value + * + * DESCRIPTION: Convert a string into an unsigned value. Performs either a + * 32-bit or 64-bit conversion, depending on the current mode + * of the interpreter. + * + * NOTE: Does not support Octal strings, not needed. + * + ******************************************************************************/ + +acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer) +{ + u32 this_digit = 0; + u64 return_value = 0; + u64 quotient; + u64 dividend; + u32 to_integer_op = (base == ACPI_ANY_BASE); + u32 mode32 = (acpi_gbl_integer_byte_width == 4); + u8 valid_digits = 0; + u8 sign_of0x = 0; + u8 term = 0; + + ACPI_FUNCTION_TRACE_STR(ut_stroul64, string); + + switch (base) { + case ACPI_ANY_BASE: + case 16: + + break; + + default: + + /* Invalid Base */ + + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (!string) { + goto error_exit; + } + + /* Skip over any white space in the buffer */ + + while ((*string) && (isspace((int)*string) || *string == '\t')) { + string++; + } + + if (to_integer_op) { + /* + * Base equal to ACPI_ANY_BASE means 'ToInteger operation case'. + * We need to determine if it is decimal or hexadecimal. + */ + if ((*string == '0') && (tolower((int)*(string + 1)) == 'x')) { + sign_of0x = 1; + base = 16; + + /* Skip over the leading '0x' */ + string += 2; + } else { + base = 10; + } + } + + /* Any string left? Check that '0x' is not followed by white space. */ + + if (!(*string) || isspace((int)*string) || *string == '\t') { + if (to_integer_op) { + goto error_exit; + } else { + goto all_done; + } + } + + /* + * Perform a 32-bit or 64-bit conversion, depending upon the current + * execution mode of the interpreter + */ + dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX; + + /* Main loop: convert the string to a 32- or 64-bit integer */ + + while (*string) { + if (isdigit((int)*string)) { + + /* Convert ASCII 0-9 to Decimal value */ + + this_digit = ((u8)*string) - '0'; + } else if (base == 10) { + + /* Digit is out of range; possible in to_integer case only */ + + term = 1; + } else { + this_digit = (u8)toupper((int)*string); + if (isxdigit((int)this_digit)) { + + /* Convert ASCII Hex char to value */ + + this_digit = this_digit - 'A' + 10; + } else { + term = 1; + } + } + + if (term) { + if (to_integer_op) { + goto error_exit; + } else { + break; + } + } else if ((valid_digits == 0) && (this_digit == 0) + && !sign_of0x) { + + /* Skip zeros */ + string++; + continue; + } + + valid_digits++; + + if (sign_of0x + && ((valid_digits > 16) + || ((valid_digits > 8) && mode32))) { + /* + * This is to_integer operation case. + * No any restrictions for string-to-integer conversion, + * see ACPI spec. + */ + goto error_exit; + } + + /* Divide the digit into the correct position */ + + (void)acpi_ut_short_divide((dividend - (u64)this_digit), + base, "ient, NULL); + + if (return_value > quotient) { + if (to_integer_op) { + goto error_exit; + } else { + break; + } + } + + return_value *= base; + return_value += this_digit; + string++; + } + + /* All done, normal exit */ + +all_done: + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(return_value))); + + *ret_integer = return_value; + return_ACPI_STATUS(AE_OK); + +error_exit: + /* Base was set/validated above */ + + if (base == 10) { + return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT); + } else { + return_ACPI_STATUS(AE_BAD_HEX_CONSTANT); + } +} + +#if defined (ACPI_DEBUGGER) || defined (ACPI_APPLICATION) +/******************************************************************************* + * + * FUNCTION: acpi_ut_safe_strcpy, acpi_ut_safe_strcat, acpi_ut_safe_strncat + * + * PARAMETERS: Adds a "DestSize" parameter to each of the standard string + * functions. This is the size of the Destination buffer. + * + * RETURN: TRUE if the operation would overflow the destination buffer. + * + * DESCRIPTION: Safe versions of standard Clib string functions. Ensure that + * the result of the operation will not overflow the output string + * buffer. + * + * NOTE: These functions are typically only helpful for processing + * user input and command lines. For most ACPICA code, the + * required buffer length is precisely calculated before buffer + * allocation, so the use of these functions is unnecessary. + * + ******************************************************************************/ + +u8 acpi_ut_safe_strcpy(char *dest, acpi_size dest_size, char *source) +{ + + if (strlen(source) >= dest_size) { + return (TRUE); + } + + strcpy(dest, source); + return (FALSE); +} + +u8 acpi_ut_safe_strcat(char *dest, acpi_size dest_size, char *source) +{ + + if ((strlen(dest) + strlen(source)) >= dest_size) { + return (TRUE); + } + + strcat(dest, source); + return (FALSE); +} + +u8 +acpi_ut_safe_strncat(char *dest, + acpi_size dest_size, + char *source, acpi_size max_transfer_length) +{ + acpi_size actual_transfer_length; + + actual_transfer_length = ACPI_MIN(max_transfer_length, strlen(source)); + + if ((strlen(dest) + actual_transfer_length) >= dest_size) { + return (TRUE); + } + + strncat(dest, source, max_transfer_length); + return (FALSE); +} +#endif diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c index 8f3c883dfe0e..4ddd105d9741 100644 --- a/drivers/acpi/acpica/utstring.c +++ b/drivers/acpi/acpica/utstring.c @@ -48,286 +48,6 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utstring") -/* - * Non-ANSI C library functions - strlwr, strupr, stricmp, and a 64-bit - * version of strtoul. - */ -#ifdef ACPI_ASL_COMPILER -/******************************************************************************* - * - * FUNCTION: acpi_ut_strlwr (strlwr) - * - * PARAMETERS: src_string - The source string to convert - * - * RETURN: None - * - * DESCRIPTION: Convert string to lowercase - * - * NOTE: This is not a POSIX function, so it appears here, not in utclib.c - * - ******************************************************************************/ -void acpi_ut_strlwr(char *src_string) -{ - char *string; - - ACPI_FUNCTION_ENTRY(); - - if (!src_string) { - return; - } - - /* Walk entire string, lowercasing the letters */ - - for (string = src_string; *string; string++) { - *string = (char)tolower((int)*string); - } - - return; -} - -/****************************************************************************** - * - * FUNCTION: acpi_ut_stricmp (stricmp) - * - * PARAMETERS: string1 - first string to compare - * string2 - second string to compare - * - * RETURN: int that signifies string relationship. Zero means strings - * are equal. - * - * DESCRIPTION: Implementation of the non-ANSI stricmp function (compare - * strings with no case sensitivity) - * - ******************************************************************************/ - -int acpi_ut_stricmp(char *string1, char *string2) -{ - int c1; - int c2; - - do { - c1 = tolower((int)*string1); - c2 = tolower((int)*string2); - - string1++; - string2++; - } - while ((c1 == c2) && (c1)); - - return (c1 - c2); -} -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ut_strupr (strupr) - * - * PARAMETERS: src_string - The source string to convert - * - * RETURN: None - * - * DESCRIPTION: Convert string to uppercase - * - * NOTE: This is not a POSIX function, so it appears here, not in utclib.c - * - ******************************************************************************/ - -void acpi_ut_strupr(char *src_string) -{ - char *string; - - ACPI_FUNCTION_ENTRY(); - - if (!src_string) { - return; - } - - /* Walk entire string, uppercasing the letters */ - - for (string = src_string; *string; string++) { - *string = (char)toupper((int)*string); - } - - return; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_strtoul64 - * - * PARAMETERS: string - Null terminated string - * base - Radix of the string: 16 or ACPI_ANY_BASE; - * ACPI_ANY_BASE means 'in behalf of to_integer' - * ret_integer - Where the converted integer is returned - * - * RETURN: Status and Converted value - * - * DESCRIPTION: Convert a string into an unsigned value. Performs either a - * 32-bit or 64-bit conversion, depending on the current mode - * of the interpreter. - * NOTE: Does not support Octal strings, not needed. - * - ******************************************************************************/ - -acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer) -{ - u32 this_digit = 0; - u64 return_value = 0; - u64 quotient; - u64 dividend; - u32 to_integer_op = (base == ACPI_ANY_BASE); - u32 mode32 = (acpi_gbl_integer_byte_width == 4); - u8 valid_digits = 0; - u8 sign_of0x = 0; - u8 term = 0; - - ACPI_FUNCTION_TRACE_STR(ut_stroul64, string); - - switch (base) { - case ACPI_ANY_BASE: - case 16: - - break; - - default: - - /* Invalid Base */ - - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (!string) { - goto error_exit; - } - - /* Skip over any white space in the buffer */ - - while ((*string) && (isspace((int)*string) || *string == '\t')) { - string++; - } - - if (to_integer_op) { - /* - * Base equal to ACPI_ANY_BASE means 'ToInteger operation case'. - * We need to determine if it is decimal or hexadecimal. - */ - if ((*string == '0') && (tolower((int)*(string + 1)) == 'x')) { - sign_of0x = 1; - base = 16; - - /* Skip over the leading '0x' */ - string += 2; - } else { - base = 10; - } - } - - /* Any string left? Check that '0x' is not followed by white space. */ - - if (!(*string) || isspace((int)*string) || *string == '\t') { - if (to_integer_op) { - goto error_exit; - } else { - goto all_done; - } - } - - /* - * Perform a 32-bit or 64-bit conversion, depending upon the current - * execution mode of the interpreter - */ - dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX; - - /* Main loop: convert the string to a 32- or 64-bit integer */ - - while (*string) { - if (isdigit((int)*string)) { - - /* Convert ASCII 0-9 to Decimal value */ - - this_digit = ((u8)*string) - '0'; - } else if (base == 10) { - - /* Digit is out of range; possible in to_integer case only */ - - term = 1; - } else { - this_digit = (u8)toupper((int)*string); - if (isxdigit((int)this_digit)) { - - /* Convert ASCII Hex char to value */ - - this_digit = this_digit - 'A' + 10; - } else { - term = 1; - } - } - - if (term) { - if (to_integer_op) { - goto error_exit; - } else { - break; - } - } else if ((valid_digits == 0) && (this_digit == 0) - && !sign_of0x) { - - /* Skip zeros */ - string++; - continue; - } - - valid_digits++; - - if (sign_of0x - && ((valid_digits > 16) - || ((valid_digits > 8) && mode32))) { - /* - * This is to_integer operation case. - * No any restrictions for string-to-integer conversion, - * see ACPI spec. - */ - goto error_exit; - } - - /* Divide the digit into the correct position */ - - (void)acpi_ut_short_divide((dividend - (u64)this_digit), - base, "ient, NULL); - - if (return_value > quotient) { - if (to_integer_op) { - goto error_exit; - } else { - break; - } - } - - return_value *= base; - return_value += this_digit; - string++; - } - - /* All done, normal exit */ - -all_done: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n", - ACPI_FORMAT_UINT64(return_value))); - - *ret_integer = return_value; - return_ACPI_STATUS(AE_OK); - -error_exit: - /* Base was set/validated above */ - - if (base == 10) { - return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT); - } else { - return_ACPI_STATUS(AE_BAD_HEX_CONSTANT); - } -} - /******************************************************************************* * * FUNCTION: acpi_ut_print_string @@ -342,7 +62,6 @@ error_exit: * sequences. * ******************************************************************************/ - void acpi_ut_print_string(char *string, u16 max_length) { u32 i; @@ -584,64 +303,3 @@ void ut_convert_backslashes(char *pathname) } } #endif - -#if defined (ACPI_DEBUGGER) || defined (ACPI_APPLICATION) -/******************************************************************************* - * - * FUNCTION: acpi_ut_safe_strcpy, acpi_ut_safe_strcat, acpi_ut_safe_strncat - * - * PARAMETERS: Adds a "DestSize" parameter to each of the standard string - * functions. This is the size of the Destination buffer. - * - * RETURN: TRUE if the operation would overflow the destination buffer. - * - * DESCRIPTION: Safe versions of standard Clib string functions. Ensure that - * the result of the operation will not overflow the output string - * buffer. - * - * NOTE: These functions are typically only helpful for processing - * user input and command lines. For most ACPICA code, the - * required buffer length is precisely calculated before buffer - * allocation, so the use of these functions is unnecessary. - * - ******************************************************************************/ - -u8 acpi_ut_safe_strcpy(char *dest, acpi_size dest_size, char *source) -{ - - if (strlen(source) >= dest_size) { - return (TRUE); - } - - strcpy(dest, source); - return (FALSE); -} - -u8 acpi_ut_safe_strcat(char *dest, acpi_size dest_size, char *source) -{ - - if ((strlen(dest) + strlen(source)) >= dest_size) { - return (TRUE); - } - - strcat(dest, source); - return (FALSE); -} - -u8 -acpi_ut_safe_strncat(char *dest, - acpi_size dest_size, - char *source, acpi_size max_transfer_length) -{ - acpi_size actual_transfer_length; - - actual_transfer_length = ACPI_MIN(max_transfer_length, strlen(source)); - - if ((strlen(dest) + actual_transfer_length) >= dest_size) { - return (TRUE); - } - - strncat(dest, source, max_transfer_length); - return (FALSE); -} -#endif diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index 51cf52d52243..4f332815db00 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -92,13 +92,6 @@ acpi_status __init acpi_terminate(void) acpi_ut_mutex_terminate(); -#ifdef ACPI_DEBUGGER - - /* Shut down the debugger */ - - acpi_db_terminate(); -#endif - /* Now we can shutdown the OS-dependent layer */ status = acpi_os_terminate(); @@ -517,7 +510,8 @@ acpi_decode_pld_buffer(u8 *in_buffer, /* Parameter validation */ - if (!in_buffer || !return_buffer || (length < 16)) { + if (!in_buffer || !return_buffer + || (length < ACPI_PLD_REV1_BUFFER_SIZE)) { return (AE_BAD_PARAMETER); } @@ -567,7 +561,7 @@ acpi_decode_pld_buffer(u8 *in_buffer, pld_info->rotation = ACPI_PLD_GET_ROTATION(&dword); pld_info->order = ACPI_PLD_GET_ORDER(&dword); - if (length >= ACPI_PLD_BUFFER_SIZE) { + if (length >= ACPI_PLD_REV2_BUFFER_SIZE) { /* Fifth 32-bit DWord (Revision 2 of _PLD) */ diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c index 42a32a66ef22..a7137ec28447 100644 --- a/drivers/acpi/acpica/utxfinit.c +++ b/drivers/acpi/acpica/utxfinit.c @@ -124,17 +124,6 @@ acpi_status __init acpi_initialize_subsystem(void) return_ACPI_STATUS(status); } - /* If configured, initialize the AML debugger */ - -#ifdef ACPI_DEBUGGER - status = acpi_db_initialize(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "During Debugger initialization")); - return_ACPI_STATUS(status); - } -#endif - return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index a85ac07f3da3..a2c8d7adb6eb 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c @@ -24,10 +24,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c index a095d4f858da..0431883653be 100644 --- a/drivers/acpi/apei/einj.c +++ b/drivers/acpi/apei/einj.c @@ -18,10 +18,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> diff --git a/drivers/acpi/apei/erst-dbg.c b/drivers/acpi/apei/erst-dbg.c index 04ab5c9d3ced..6330f557a2c8 100644 --- a/drivers/acpi/apei/erst-dbg.c +++ b/drivers/acpi/apei/erst-dbg.c @@ -17,10 +17,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index 3670bbab57a3..6682c5daf742 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -18,10 +18,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 2bfd53cbfe80..23981ac1c6c2 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -23,10 +23,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c index 06e9b411a0a2..20b3fcf4007c 100644 --- a/drivers/acpi/apei/hest.c +++ b/drivers/acpi/apei/hest.c @@ -21,10 +21,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index b3628cc01a53..b719ab3090bb 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -18,10 +18,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 278dc4be992a..96809cd99ace 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -20,10 +20,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 513e7230e3d0..46506e7687cd 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -15,10 +15,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ @@ -423,6 +419,406 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) acpi_evaluate_ost(handle, type, ost_code, NULL); } +static void acpi_device_notify(acpi_handle handle, u32 event, void *data) +{ + struct acpi_device *device = data; + + device->driver->ops.notify(device, event); +} + +static void acpi_device_notify_fixed(void *data) +{ + struct acpi_device *device = data; + + /* Fixed hardware devices have no handles */ + acpi_device_notify(NULL, ACPI_FIXED_HARDWARE_EVENT, device); +} + +static u32 acpi_device_fixed_event(void *data) +{ + acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_device_notify_fixed, data); + return ACPI_INTERRUPT_HANDLED; +} + +static int acpi_device_install_notify_handler(struct acpi_device *device) +{ + acpi_status status; + + if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) + status = + acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, + acpi_device_fixed_event, + device); + else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) + status = + acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, + acpi_device_fixed_event, + device); + else + status = acpi_install_notify_handler(device->handle, + ACPI_DEVICE_NOTIFY, + acpi_device_notify, + device); + + if (ACPI_FAILURE(status)) + return -EINVAL; + return 0; +} + +static void acpi_device_remove_notify_handler(struct acpi_device *device) +{ + if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) + acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, + acpi_device_fixed_event); + else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) + acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, + acpi_device_fixed_event); + else + acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, + acpi_device_notify); +} + +/* -------------------------------------------------------------------------- + Device Matching + -------------------------------------------------------------------------- */ + +static struct acpi_device *acpi_primary_dev_companion(struct acpi_device *adev, + const struct device *dev) +{ + struct mutex *physical_node_lock = &adev->physical_node_lock; + + mutex_lock(physical_node_lock); + if (list_empty(&adev->physical_node_list)) { + adev = NULL; + } else { + const struct acpi_device_physical_node *node; + + node = list_first_entry(&adev->physical_node_list, + struct acpi_device_physical_node, node); + if (node->dev != dev) + adev = NULL; + } + mutex_unlock(physical_node_lock); + return adev; +} + +/** + * acpi_device_is_first_physical_node - Is given dev first physical node + * @adev: ACPI companion device + * @dev: Physical device to check + * + * Function checks if given @dev is the first physical devices attached to + * the ACPI companion device. This distinction is needed in some cases + * where the same companion device is shared between many physical devices. + * + * Note that the caller have to provide valid @adev pointer. + */ +bool acpi_device_is_first_physical_node(struct acpi_device *adev, + const struct device *dev) +{ + return !!acpi_primary_dev_companion(adev, dev); +} + +/* + * acpi_companion_match() - Can we match via ACPI companion device + * @dev: Device in question + * + * Check if the given device has an ACPI companion and if that companion has + * a valid list of PNP IDs, and if the device is the first (primary) physical + * device associated with it. Return the companion pointer if that's the case + * or NULL otherwise. + * + * If multiple physical devices are attached to a single ACPI companion, we need + * to be careful. The usage scenario for this kind of relationship is that all + * of the physical devices in question use resources provided by the ACPI + * companion. A typical case is an MFD device where all the sub-devices share + * the parent's ACPI companion. In such cases we can only allow the primary + * (first) physical device to be matched with the help of the companion's PNP + * IDs. + * + * Additional physical devices sharing the ACPI companion can still use + * resources available from it but they will be matched normally using functions + * provided by their bus types (and analogously for their modalias). + */ +struct acpi_device *acpi_companion_match(const struct device *dev) +{ + struct acpi_device *adev; + + adev = ACPI_COMPANION(dev); + if (!adev) + return NULL; + + if (list_empty(&adev->pnp.ids)) + return NULL; + + return acpi_primary_dev_companion(adev, dev); +} + +/** + * acpi_of_match_device - Match device object using the "compatible" property. + * @adev: ACPI device object to match. + * @of_match_table: List of device IDs to match against. + * + * If @dev has an ACPI companion which has ACPI_DT_NAMESPACE_HID in its list of + * identifiers and a _DSD object with the "compatible" property, use that + * property to match against the given list of identifiers. + */ +static bool acpi_of_match_device(struct acpi_device *adev, + const struct of_device_id *of_match_table) +{ + const union acpi_object *of_compatible, *obj; + int i, nval; + + if (!adev) + return false; + + of_compatible = adev->data.of_compatible; + if (!of_match_table || !of_compatible) + return false; + + if (of_compatible->type == ACPI_TYPE_PACKAGE) { + nval = of_compatible->package.count; + obj = of_compatible->package.elements; + } else { /* Must be ACPI_TYPE_STRING. */ + nval = 1; + obj = of_compatible; + } + /* Now we can look for the driver DT compatible strings */ + for (i = 0; i < nval; i++, obj++) { + const struct of_device_id *id; + + for (id = of_match_table; id->compatible[0]; id++) + if (!strcasecmp(obj->string.pointer, id->compatible)) + return true; + } + + return false; +} + +static bool __acpi_match_device_cls(const struct acpi_device_id *id, + struct acpi_hardware_id *hwid) +{ + int i, msk, byte_shift; + char buf[3]; + + if (!id->cls) + return false; + + /* Apply class-code bitmask, before checking each class-code byte */ + for (i = 1; i <= 3; i++) { + byte_shift = 8 * (3 - i); + msk = (id->cls_msk >> byte_shift) & 0xFF; + if (!msk) + continue; + + sprintf(buf, "%02x", (id->cls >> byte_shift) & msk); + if (strncmp(buf, &hwid->id[(i - 1) * 2], 2)) + return false; + } + return true; +} + +static const struct acpi_device_id *__acpi_match_device( + struct acpi_device *device, + const struct acpi_device_id *ids, + const struct of_device_id *of_ids) +{ + const struct acpi_device_id *id; + struct acpi_hardware_id *hwid; + + /* + * If the device is not present, it is unnecessary to load device + * driver for it. + */ + if (!device || !device->status.present) + return NULL; + + list_for_each_entry(hwid, &device->pnp.ids, list) { + /* First, check the ACPI/PNP IDs provided by the caller. */ + for (id = ids; id->id[0] || id->cls; id++) { + if (id->id[0] && !strcmp((char *) id->id, hwid->id)) + return id; + else if (id->cls && __acpi_match_device_cls(id, hwid)) + return id; + } + + /* + * Next, check ACPI_DT_NAMESPACE_HID and try to match the + * "compatible" property if found. + * + * The id returned by the below is not valid, but the only + * caller passing non-NULL of_ids here is only interested in + * whether or not the return value is NULL. + */ + if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id) + && acpi_of_match_device(device, of_ids)) + return id; + } + return NULL; +} + +/** + * acpi_match_device - Match a struct device against a given list of ACPI IDs + * @ids: Array of struct acpi_device_id object to match against. + * @dev: The device structure to match. + * + * Check if @dev has a valid ACPI handle and if there is a struct acpi_device + * object for that handle and use that object to match against a given list of + * device IDs. + * + * Return a pointer to the first matching ID on success or %NULL on failure. + */ +const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, + const struct device *dev) +{ + return __acpi_match_device(acpi_companion_match(dev), ids, NULL); +} +EXPORT_SYMBOL_GPL(acpi_match_device); + +int acpi_match_device_ids(struct acpi_device *device, + const struct acpi_device_id *ids) +{ + return __acpi_match_device(device, ids, NULL) ? 0 : -ENOENT; +} +EXPORT_SYMBOL(acpi_match_device_ids); + +bool acpi_driver_match_device(struct device *dev, + const struct device_driver *drv) +{ + if (!drv->acpi_match_table) + return acpi_of_match_device(ACPI_COMPANION(dev), + drv->of_match_table); + + return !!__acpi_match_device(acpi_companion_match(dev), + drv->acpi_match_table, drv->of_match_table); +} +EXPORT_SYMBOL_GPL(acpi_driver_match_device); + +/* -------------------------------------------------------------------------- + ACPI Driver Management + -------------------------------------------------------------------------- */ + +/** + * acpi_bus_register_driver - register a driver with the ACPI bus + * @driver: driver being registered + * + * Registers a driver with the ACPI bus. Searches the namespace for all + * devices that match the driver's criteria and binds. Returns zero for + * success or a negative error status for failure. + */ +int acpi_bus_register_driver(struct acpi_driver *driver) +{ + int ret; + + if (acpi_disabled) + return -ENODEV; + driver->drv.name = driver->name; + driver->drv.bus = &acpi_bus_type; + driver->drv.owner = driver->owner; + + ret = driver_register(&driver->drv); + return ret; +} + +EXPORT_SYMBOL(acpi_bus_register_driver); + +/** + * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus + * @driver: driver to unregister + * + * Unregisters a driver with the ACPI bus. Searches the namespace for all + * devices that match the driver's criteria and unbinds. + */ +void acpi_bus_unregister_driver(struct acpi_driver *driver) +{ + driver_unregister(&driver->drv); +} + +EXPORT_SYMBOL(acpi_bus_unregister_driver); + +/* -------------------------------------------------------------------------- + ACPI Bus operations + -------------------------------------------------------------------------- */ + +static int acpi_bus_match(struct device *dev, struct device_driver *drv) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_driver *acpi_drv = to_acpi_driver(drv); + + return acpi_dev->flags.match_driver + && !acpi_match_device_ids(acpi_dev, acpi_drv->ids); +} + +static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + return __acpi_device_uevent_modalias(to_acpi_device(dev), env); +} + +static int acpi_device_probe(struct device *dev) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver); + int ret; + + if (acpi_dev->handler && !acpi_is_pnp_device(acpi_dev)) + return -EINVAL; + + if (!acpi_drv->ops.add) + return -ENOSYS; + + ret = acpi_drv->ops.add(acpi_dev); + if (ret) + return ret; + + acpi_dev->driver = acpi_drv; + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Driver [%s] successfully bound to device [%s]\n", + acpi_drv->name, acpi_dev->pnp.bus_id)); + + if (acpi_drv->ops.notify) { + ret = acpi_device_install_notify_handler(acpi_dev); + if (ret) { + if (acpi_drv->ops.remove) + acpi_drv->ops.remove(acpi_dev); + + acpi_dev->driver = NULL; + acpi_dev->driver_data = NULL; + return ret; + } + } + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s]\n", + acpi_drv->name, acpi_dev->pnp.bus_id)); + get_device(dev); + return 0; +} + +static int acpi_device_remove(struct device * dev) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_driver *acpi_drv = acpi_dev->driver; + + if (acpi_drv) { + if (acpi_drv->ops.notify) + acpi_device_remove_notify_handler(acpi_dev); + if (acpi_drv->ops.remove) + acpi_drv->ops.remove(acpi_dev); + } + acpi_dev->driver = NULL; + acpi_dev->driver_data = NULL; + + put_device(dev); + return 0; +} + +struct bus_type acpi_bus_type = { + .name = "acpi", + .match = acpi_bus_match, + .probe = acpi_device_probe, + .remove = acpi_device_remove, + .uevent = acpi_device_uevent, +}; + /* -------------------------------------------------------------------------- Initialization/Cleanup -------------------------------------------------------------------------- */ @@ -661,7 +1057,9 @@ static int __init acpi_bus_init(void) */ acpi_root_dir = proc_mkdir(ACPI_BUS_FILE_ROOT, NULL); - return 0; + result = bus_register(&acpi_bus_type); + if (!result) + return 0; /* Mimic structured exception handling */ error1: diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index 6d5d1832a588..5c3b0918d5fd 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -16,10 +16,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/cm_sbs.c b/drivers/acpi/cm_sbs.c index 6c9ee68e46fb..d0918d421f90 100644 --- a/drivers/acpi/cm_sbs.c +++ b/drivers/acpi/cm_sbs.c @@ -11,10 +11,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c index c8ead9f97375..12c240903c18 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -20,10 +20,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include <linux/acpi.h> diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c index 6b1919f6bd82..68bb305b977f 100644 --- a/drivers/acpi/debugfs.c +++ b/drivers/acpi/debugfs.c @@ -7,6 +7,8 @@ #include <linux/debugfs.h> #include <linux/acpi.h> +#include "internal.h" + #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("debugfs"); diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 88dbbb115285..4806b7f856c4 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -15,10 +15,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ @@ -1123,6 +1119,14 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on) if (dev->pm_domain) return -EEXIST; + /* + * Only attach the power domain to the first device if the + * companion is shared by multiple. This is to prevent doing power + * management twice. + */ + if (!acpi_device_is_first_physical_node(adev, dev)) + return -EBUSY; + acpi_add_pm_notifier(adev, dev, acpi_pm_notify_work_func); dev->pm_domain = &acpi_general_pm_domain; if (power_on) { diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c new file mode 100644 index 000000000000..4ab4582e586b --- /dev/null +++ b/drivers/acpi/device_sysfs.c @@ -0,0 +1,521 @@ +/* + * drivers/acpi/device_sysfs.c - ACPI device sysfs attributes and modalias. + * + * Copyright (C) 2015, Intel Corp. + * Author: Mika Westerberg <mika.westerberg@linux.intel.com> + * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#include <linux/acpi.h> +#include <linux/device.h> +#include <linux/export.h> +#include <linux/nls.h> + +#include "internal.h" + +/** + * create_pnp_modalias - Create hid/cid(s) string for modalias and uevent + * @acpi_dev: ACPI device object. + * @modalias: Buffer to print into. + * @size: Size of the buffer. + * + * Creates hid/cid(s) string needed for modalias and uevent + * e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get: + * char *modalias: "acpi:IBM0001:ACPI0001" + * Return: 0: no _HID and no _CID + * -EINVAL: output error + * -ENOMEM: output is truncated +*/ +static int create_pnp_modalias(struct acpi_device *acpi_dev, char *modalias, + int size) +{ + int len; + int count; + struct acpi_hardware_id *id; + + /* + * Since we skip ACPI_DT_NAMESPACE_HID from the modalias below, 0 should + * be returned if ACPI_DT_NAMESPACE_HID is the only ACPI/PNP ID in the + * device's list. + */ + count = 0; + list_for_each_entry(id, &acpi_dev->pnp.ids, list) + if (strcmp(id->id, ACPI_DT_NAMESPACE_HID)) + count++; + + if (!count) + return 0; + + len = snprintf(modalias, size, "acpi:"); + if (len <= 0) + return len; + + size -= len; + + list_for_each_entry(id, &acpi_dev->pnp.ids, list) { + if (!strcmp(id->id, ACPI_DT_NAMESPACE_HID)) + continue; + + count = snprintf(&modalias[len], size, "%s:", id->id); + if (count < 0) + return -EINVAL; + + if (count >= size) + return -ENOMEM; + + len += count; + size -= count; + } + modalias[len] = '\0'; + return len; +} + +/** + * create_of_modalias - Creates DT compatible string for modalias and uevent + * @acpi_dev: ACPI device object. + * @modalias: Buffer to print into. + * @size: Size of the buffer. + * + * Expose DT compatible modalias as of:NnameTCcompatible. This function should + * only be called for devices having ACPI_DT_NAMESPACE_HID in their list of + * ACPI/PNP IDs. + */ +static int create_of_modalias(struct acpi_device *acpi_dev, char *modalias, + int size) +{ + struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER }; + const union acpi_object *of_compatible, *obj; + int len, count; + int i, nval; + char *c; + + acpi_get_name(acpi_dev->handle, ACPI_SINGLE_NAME, &buf); + /* DT strings are all in lower case */ + for (c = buf.pointer; *c != '\0'; c++) + *c = tolower(*c); + + len = snprintf(modalias, size, "of:N%sT", (char *)buf.pointer); + ACPI_FREE(buf.pointer); + + if (len <= 0) + return len; + + of_compatible = acpi_dev->data.of_compatible; + if (of_compatible->type == ACPI_TYPE_PACKAGE) { + nval = of_compatible->package.count; + obj = of_compatible->package.elements; + } else { /* Must be ACPI_TYPE_STRING. */ + nval = 1; + obj = of_compatible; + } + for (i = 0; i < nval; i++, obj++) { + count = snprintf(&modalias[len], size, "C%s", + obj->string.pointer); + if (count < 0) + return -EINVAL; + + if (count >= size) + return -ENOMEM; + + len += count; + size -= count; + } + modalias[len] = '\0'; + return len; +} + +int __acpi_device_uevent_modalias(struct acpi_device *adev, + struct kobj_uevent_env *env) +{ + int len; + + if (!adev) + return -ENODEV; + + if (list_empty(&adev->pnp.ids)) + return 0; + + if (add_uevent_var(env, "MODALIAS=")) + return -ENOMEM; + + len = create_pnp_modalias(adev, &env->buf[env->buflen - 1], + sizeof(env->buf) - env->buflen); + if (len < 0) + return len; + + env->buflen += len; + if (!adev->data.of_compatible) + return 0; + + if (len > 0 && add_uevent_var(env, "MODALIAS=")) + return -ENOMEM; + + len = create_of_modalias(adev, &env->buf[env->buflen - 1], + sizeof(env->buf) - env->buflen); + if (len < 0) + return len; + + env->buflen += len; + + return 0; +} + +/** + * acpi_device_uevent_modalias - uevent modalias for ACPI-enumerated devices. + * + * Create the uevent modalias field for ACPI-enumerated devices. + * + * Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with + * hid:IBM0001 and cid:ACPI0001 you get: "acpi:IBM0001:ACPI0001". + */ +int acpi_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env) +{ + return __acpi_device_uevent_modalias(acpi_companion_match(dev), env); +} +EXPORT_SYMBOL_GPL(acpi_device_uevent_modalias); + +static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size) +{ + int len, count; + + if (!adev) + return -ENODEV; + + if (list_empty(&adev->pnp.ids)) + return 0; + + len = create_pnp_modalias(adev, buf, size - 1); + if (len < 0) { + return len; + } else if (len > 0) { + buf[len++] = '\n'; + size -= len; + } + if (!adev->data.of_compatible) + return len; + + count = create_of_modalias(adev, buf + len, size - 1); + if (count < 0) { + return count; + } else if (count > 0) { + len += count; + buf[len++] = '\n'; + } + + return len; +} + +/** + * acpi_device_modalias - modalias sysfs attribute for ACPI-enumerated devices. + * + * Create the modalias sysfs attribute for ACPI-enumerated devices. + * + * Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with + * hid:IBM0001 and cid:ACPI0001 you get: "acpi:IBM0001:ACPI0001". + */ +int acpi_device_modalias(struct device *dev, char *buf, int size) +{ + return __acpi_device_modalias(acpi_companion_match(dev), buf, size); +} +EXPORT_SYMBOL_GPL(acpi_device_modalias); + +static ssize_t +acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { + return __acpi_device_modalias(to_acpi_device(dev), buf, 1024); +} +static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL); + +static ssize_t real_power_state_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_device *adev = to_acpi_device(dev); + int state; + int ret; + + ret = acpi_device_get_power(adev, &state); + if (ret) + return ret; + + return sprintf(buf, "%s\n", acpi_power_state_string(state)); +} + +static DEVICE_ATTR(real_power_state, 0444, real_power_state_show, NULL); + +static ssize_t power_state_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_device *adev = to_acpi_device(dev); + + return sprintf(buf, "%s\n", acpi_power_state_string(adev->power.state)); +} + +static DEVICE_ATTR(power_state, 0444, power_state_show, NULL); + +static ssize_t +acpi_eject_store(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct acpi_device *acpi_device = to_acpi_device(d); + acpi_object_type not_used; + acpi_status status; + + if (!count || buf[0] != '1') + return -EINVAL; + + if ((!acpi_device->handler || !acpi_device->handler->hotplug.enabled) + && !acpi_device->driver) + return -ENODEV; + + status = acpi_get_type(acpi_device->handle, ¬_used); + if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable) + return -ENODEV; + + get_device(&acpi_device->dev); + status = acpi_hotplug_schedule(acpi_device, ACPI_OST_EC_OSPM_EJECT); + if (ACPI_SUCCESS(status)) + return count; + + put_device(&acpi_device->dev); + acpi_evaluate_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, + ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); + return status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN; +} + +static DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store); + +static ssize_t +acpi_device_hid_show(struct device *dev, struct device_attribute *attr, char *buf) { + struct acpi_device *acpi_dev = to_acpi_device(dev); + + return sprintf(buf, "%s\n", acpi_device_hid(acpi_dev)); +} +static DEVICE_ATTR(hid, 0444, acpi_device_hid_show, NULL); + +static ssize_t acpi_device_uid_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + + return sprintf(buf, "%s\n", acpi_dev->pnp.unique_id); +} +static DEVICE_ATTR(uid, 0444, acpi_device_uid_show, NULL); + +static ssize_t acpi_device_adr_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + + return sprintf(buf, "0x%08x\n", + (unsigned int)(acpi_dev->pnp.bus_address)); +} +static DEVICE_ATTR(adr, 0444, acpi_device_adr_show, NULL); + +static ssize_t +acpi_device_path_show(struct device *dev, struct device_attribute *attr, char *buf) { + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL}; + int result; + + result = acpi_get_name(acpi_dev->handle, ACPI_FULL_PATHNAME, &path); + if (result) + goto end; + + result = sprintf(buf, "%s\n", (char*)path.pointer); + kfree(path.pointer); +end: + return result; +} +static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL); + +/* sysfs file that shows description text from the ACPI _STR method */ +static ssize_t description_show(struct device *dev, + struct device_attribute *attr, + char *buf) { + struct acpi_device *acpi_dev = to_acpi_device(dev); + int result; + + if (acpi_dev->pnp.str_obj == NULL) + return 0; + + /* + * The _STR object contains a Unicode identifier for a device. + * We need to convert to utf-8 so it can be displayed. + */ + result = utf16s_to_utf8s( + (wchar_t *)acpi_dev->pnp.str_obj->buffer.pointer, + acpi_dev->pnp.str_obj->buffer.length, + UTF16_LITTLE_ENDIAN, buf, + PAGE_SIZE); + + buf[result++] = '\n'; + + return result; +} +static DEVICE_ATTR(description, 0444, description_show, NULL); + +static ssize_t +acpi_device_sun_show(struct device *dev, struct device_attribute *attr, + char *buf) { + struct acpi_device *acpi_dev = to_acpi_device(dev); + acpi_status status; + unsigned long long sun; + + status = acpi_evaluate_integer(acpi_dev->handle, "_SUN", NULL, &sun); + if (ACPI_FAILURE(status)) + return -ENODEV; + + return sprintf(buf, "%llu\n", sun); +} +static DEVICE_ATTR(sun, 0444, acpi_device_sun_show, NULL); + +static ssize_t status_show(struct device *dev, struct device_attribute *attr, + char *buf) { + struct acpi_device *acpi_dev = to_acpi_device(dev); + acpi_status status; + unsigned long long sta; + + status = acpi_evaluate_integer(acpi_dev->handle, "_STA", NULL, &sta); + if (ACPI_FAILURE(status)) + return -ENODEV; + + return sprintf(buf, "%llu\n", sta); +} +static DEVICE_ATTR_RO(status); + +/** + * acpi_device_setup_files - Create sysfs attributes of an ACPI device. + * @dev: ACPI device object. + */ +int acpi_device_setup_files(struct acpi_device *dev) +{ + struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; + acpi_status status; + int result = 0; + + /* + * Devices gotten from FADT don't have a "path" attribute + */ + if (dev->handle) { + result = device_create_file(&dev->dev, &dev_attr_path); + if (result) + goto end; + } + + if (!list_empty(&dev->pnp.ids)) { + result = device_create_file(&dev->dev, &dev_attr_hid); + if (result) + goto end; + + result = device_create_file(&dev->dev, &dev_attr_modalias); + if (result) + goto end; + } + + /* + * If device has _STR, 'description' file is created + */ + if (acpi_has_method(dev->handle, "_STR")) { + status = acpi_evaluate_object(dev->handle, "_STR", + NULL, &buffer); + if (ACPI_FAILURE(status)) + buffer.pointer = NULL; + dev->pnp.str_obj = buffer.pointer; + result = device_create_file(&dev->dev, &dev_attr_description); + if (result) + goto end; + } + + if (dev->pnp.type.bus_address) + result = device_create_file(&dev->dev, &dev_attr_adr); + if (dev->pnp.unique_id) + result = device_create_file(&dev->dev, &dev_attr_uid); + + if (acpi_has_method(dev->handle, "_SUN")) { + result = device_create_file(&dev->dev, &dev_attr_sun); + if (result) + goto end; + } + + if (acpi_has_method(dev->handle, "_STA")) { + result = device_create_file(&dev->dev, &dev_attr_status); + if (result) + goto end; + } + + /* + * If device has _EJ0, 'eject' file is created that is used to trigger + * hot-removal function from userland. + */ + if (acpi_has_method(dev->handle, "_EJ0")) { + result = device_create_file(&dev->dev, &dev_attr_eject); + if (result) + return result; + } + + if (dev->flags.power_manageable) { + result = device_create_file(&dev->dev, &dev_attr_power_state); + if (result) + return result; + + if (dev->power.flags.power_resources) + result = device_create_file(&dev->dev, + &dev_attr_real_power_state); + } + +end: + return result; +} + +/** + * acpi_device_remove_files - Remove sysfs attributes of an ACPI device. + * @dev: ACPI device object. + */ +void acpi_device_remove_files(struct acpi_device *dev) +{ + if (dev->flags.power_manageable) { + device_remove_file(&dev->dev, &dev_attr_power_state); + if (dev->power.flags.power_resources) + device_remove_file(&dev->dev, + &dev_attr_real_power_state); + } + + /* + * If device has _STR, remove 'description' file + */ + if (acpi_has_method(dev->handle, "_STR")) { + kfree(dev->pnp.str_obj); + device_remove_file(&dev->dev, &dev_attr_description); + } + /* + * If device has _EJ0, remove 'eject' file. + */ + if (acpi_has_method(dev->handle, "_EJ0")) + device_remove_file(&dev->dev, &dev_attr_eject); + + if (acpi_has_method(dev->handle, "_SUN")) + device_remove_file(&dev->dev, &dev_attr_sun); + + if (dev->pnp.unique_id) + device_remove_file(&dev->dev, &dev_attr_uid); + if (dev->pnp.type.bus_address) + device_remove_file(&dev->dev, &dev_attr_adr); + device_remove_file(&dev->dev, &dev_attr_modalias); + device_remove_file(&dev->dev, &dev_attr_hid); + if (acpi_has_method(dev->handle, "_STA")) + device_remove_file(&dev->dev, &dev_attr_status); + if (dev->handle) + device_remove_file(&dev->dev, &dev_attr_path); +} diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index a688aa243f6c..e8e128dede29 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -17,10 +17,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 9d4761d2f6b7..2614a839c60d 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -22,10 +22,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ @@ -165,8 +161,16 @@ struct transaction { u8 flags; }; +struct acpi_ec_query { + struct transaction transaction; + struct work_struct work; + struct acpi_ec_query_handler *handler; +}; + static int acpi_ec_query(struct acpi_ec *ec, u8 *data); static void advance_transaction(struct acpi_ec *ec); +static void acpi_ec_event_handler(struct work_struct *work); +static void acpi_ec_event_processor(struct work_struct *work); struct acpi_ec *boot_ec, *first_ec; EXPORT_SYMBOL(first_ec); @@ -978,60 +982,90 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit) } EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler); -static void acpi_ec_run(void *cxt) +static struct acpi_ec_query *acpi_ec_create_query(u8 *pval) { - struct acpi_ec_query_handler *handler = cxt; + struct acpi_ec_query *q; + struct transaction *t; + + q = kzalloc(sizeof (struct acpi_ec_query), GFP_KERNEL); + if (!q) + return NULL; + INIT_WORK(&q->work, acpi_ec_event_processor); + t = &q->transaction; + t->command = ACPI_EC_COMMAND_QUERY; + t->rdata = pval; + t->rlen = 1; + return q; +} + +static void acpi_ec_delete_query(struct acpi_ec_query *q) +{ + if (q) { + if (q->handler) + acpi_ec_put_query_handler(q->handler); + kfree(q); + } +} + +static void acpi_ec_event_processor(struct work_struct *work) +{ + struct acpi_ec_query *q = container_of(work, struct acpi_ec_query, work); + struct acpi_ec_query_handler *handler = q->handler; - if (!handler) - return; ec_dbg_evt("Query(0x%02x) started", handler->query_bit); if (handler->func) handler->func(handler->data); else if (handler->handle) acpi_evaluate_object(handler->handle, NULL, NULL, NULL); ec_dbg_evt("Query(0x%02x) stopped", handler->query_bit); - acpi_ec_put_query_handler(handler); + acpi_ec_delete_query(q); } static int acpi_ec_query(struct acpi_ec *ec, u8 *data) { u8 value = 0; int result; - acpi_status status; struct acpi_ec_query_handler *handler; - struct transaction t = {.command = ACPI_EC_COMMAND_QUERY, - .wdata = NULL, .rdata = &value, - .wlen = 0, .rlen = 1}; + struct acpi_ec_query *q; + + q = acpi_ec_create_query(&value); + if (!q) + return -ENOMEM; /* * Query the EC to find out which _Qxx method we need to evaluate. * Note that successful completion of the query causes the ACPI_EC_SCI * bit to be cleared (and thus clearing the interrupt source). */ - result = acpi_ec_transaction(ec, &t); - if (result) - return result; - if (data) - *data = value; + result = acpi_ec_transaction(ec, &q->transaction); if (!value) - return -ENODATA; + result = -ENODATA; + if (result) + goto err_exit; mutex_lock(&ec->mutex); list_for_each_entry(handler, &ec->list, node) { if (value == handler->query_bit) { - /* have custom handler for this bit */ - handler = acpi_ec_get_query_handler(handler); + q->handler = acpi_ec_get_query_handler(handler); ec_dbg_evt("Query(0x%02x) scheduled", - handler->query_bit); - status = acpi_os_execute((handler->func) ? - OSL_NOTIFY_HANDLER : OSL_GPE_HANDLER, - acpi_ec_run, handler); - if (ACPI_FAILURE(status)) + q->handler->query_bit); + /* + * It is reported that _Qxx are evaluated in a + * parallel way on Windows: + * https://bugzilla.kernel.org/show_bug.cgi?id=94411 + */ + if (!schedule_work(&q->work)) result = -EBUSY; break; } } mutex_unlock(&ec->mutex); + +err_exit: + if (result && q) + acpi_ec_delete_query(q); + if (data) + *data = value; return result; } diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index bea0bbaafa97..e297a480e135 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -16,10 +16,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/hed.c b/drivers/acpi/hed.c index a322710b5ba4..5c67a6d8f803 100644 --- a/drivers/acpi/hed.c +++ b/drivers/acpi/hed.c @@ -15,10 +15,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 4683a96932b9..9e426210c2a8 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -13,9 +13,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef _ACPI_INTERNAL_H_ @@ -70,7 +67,7 @@ void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val); #ifdef CONFIG_DEBUG_FS extern struct dentry *acpi_debugfs_dir; -int acpi_debugfs_init(void); +void acpi_debugfs_init(void); #else static inline void acpi_debugfs_init(void) { return; } #endif @@ -93,10 +90,21 @@ int acpi_device_add(struct acpi_device *device, void (*release)(struct device *)); void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, int type, unsigned long long sta); +int acpi_device_setup_files(struct acpi_device *dev); +void acpi_device_remove_files(struct acpi_device *dev); void acpi_device_add_finalize(struct acpi_device *device); void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); bool acpi_device_is_present(struct acpi_device *adev); bool acpi_device_is_battery(struct acpi_device *adev); +bool acpi_device_is_first_physical_node(struct acpi_device *adev, + const struct device *dev); + +/* -------------------------------------------------------------------------- + Device Matching and Notification + -------------------------------------------------------------------------- */ +struct acpi_device *acpi_companion_match(const struct device *dev); +int __acpi_device_uevent_modalias(struct acpi_device *adev, + struct kobj_uevent_env *env); /* -------------------------------------------------------------------------- Power Resource diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index acaa3b4ea504..72b6e9ef0ae9 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -15,10 +15,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * */ diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 3b8963f21b36..739a4a6b3b9b 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -19,10 +19,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * */ @@ -47,6 +43,7 @@ #include <asm/io.h> #include <asm/uaccess.h> +#include <asm-generic/io-64-nonatomic-lo-hi.h> #include "internal.h" @@ -83,6 +80,7 @@ static void *acpi_irq_context; static struct workqueue_struct *kacpid_wq; static struct workqueue_struct *kacpi_notify_wq; static struct workqueue_struct *kacpi_hotplug_wq; +static bool acpi_os_initialized; /* * This list of permanent mappings is for memory that may be accessed from @@ -947,21 +945,6 @@ acpi_status acpi_os_write_port(acpi_io_address port, u32 value, u32 width) EXPORT_SYMBOL(acpi_os_write_port); -#ifdef readq -static inline u64 read64(const volatile void __iomem *addr) -{ - return readq(addr); -} -#else -static inline u64 read64(const volatile void __iomem *addr) -{ - u64 l, h; - l = readl(addr); - h = readl(addr+4); - return l | (h << 32); -} -#endif - acpi_status acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width) { @@ -994,7 +977,7 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width) *(u32 *) value = readl(virt_addr); break; case 64: - *(u64 *) value = read64(virt_addr); + *(u64 *) value = readq(virt_addr); break; default: BUG(); @@ -1008,19 +991,6 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width) return AE_OK; } -#ifdef writeq -static inline void write64(u64 val, volatile void __iomem *addr) -{ - writeq(val, addr); -} -#else -static inline void write64(u64 val, volatile void __iomem *addr) -{ - writel(val, addr); - writel(val>>32, addr+4); -} -#endif - acpi_status acpi_os_write_memory(acpi_physical_address phys_addr, u64 value, u32 width) { @@ -1049,7 +1019,7 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u64 value, u32 width) writel(value, virt_addr); break; case 64: - write64(value, virt_addr); + writeq(value, virt_addr); break; default: BUG(); @@ -1316,6 +1286,9 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout) long jiffies; int ret = 0; + if (!acpi_os_initialized) + return AE_OK; + if (!sem || (units < 1)) return AE_BAD_PARAMETER; @@ -1355,6 +1328,9 @@ acpi_status acpi_os_signal_semaphore(acpi_handle handle, u32 units) { struct semaphore *sem = (struct semaphore *)handle; + if (!acpi_os_initialized) + return AE_OK; + if (!sem || (units < 1)) return AE_BAD_PARAMETER; @@ -1863,6 +1839,7 @@ acpi_status __init acpi_os_initialize(void) rv = acpi_os_map_generic_address(&acpi_gbl_FADT.reset_register); pr_debug(PREFIX "%s: map reset_reg status %d\n", __func__, rv); } + acpi_os_initialized = true; return AE_OK; } diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index afa16c557c17..6da0f9beab19 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -19,10 +19,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index cfd7581cc19f..3b4ea98e3ea0 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -17,10 +17,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * TBD: @@ -826,6 +822,22 @@ void acpi_penalize_isa_irq(int irq, int active) } /* + * Penalize IRQ used by ACPI SCI. If ACPI SCI pin attributes conflict with + * PCI IRQ attributes, mark ACPI SCI as ISA_ALWAYS so it won't be use for + * PCI IRQs. + */ +void acpi_penalize_sci_irq(int irq, int trigger, int polarity) +{ + if (irq >= 0 && irq < ARRAY_SIZE(acpi_irq_penalty)) { + if (trigger != ACPI_MADT_TRIGGER_LEVEL || + polarity != ACPI_MADT_POLARITY_ACTIVE_LOW) + acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_ALWAYS; + else + acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING; + } +} + +/* * Over-ride default table to reserve additional IRQs for use by ISA * e.g. acpi_irq_isa=5 * Useful for telling ACPI how not to interfere with your ISA sound card. diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 1b5569c092c6..393706a5261b 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -16,10 +16,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index 139d9e479370..7188e53b6b7c 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c @@ -20,10 +20,6 @@ * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. */ #include <linux/kernel.h> diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 93eac53b5110..fcd4ce6f78d5 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -1,8 +1,10 @@ /* - * acpi_power.c - ACPI Bus Power Management ($Revision: 39 $) + * drivers/acpi/power.c - ACPI Power Resources management. * - * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> - * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> + * Copyright (C) 2001 - 2015 Intel Corp. + * Author: Andy Grover <andrew.grover@intel.com> + * Author: Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> + * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * @@ -16,10 +18,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ @@ -27,10 +25,11 @@ * ACPI power-managed devices may be controlled in two ways: * 1. via "Device Specific (D-State) Control" * 2. via "Power Resource Control". - * This module is used to manage devices relying on Power Resource Control. + * The code below deals with ACPI Power Resources control. * - * An ACPI "power resource object" describes a software controllable power - * plane, clock plane, or other resource used by a power managed device. + * An ACPI "power resource object" represents a software controllable power + * plane, clock plane, or other resource depended on by a device. + * * A device may rely on multiple power resources, and a power resource * may be shared by multiple devices. */ diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index d9f71581b79b..51e658f21e95 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -21,10 +21,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ @@ -159,38 +155,28 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb, return NOTIFY_OK; } -static struct notifier_block __refdata acpi_cpu_notifier = { +static struct notifier_block acpi_cpu_notifier = { .notifier_call = acpi_cpu_soft_notify, }; -static int __acpi_processor_start(struct acpi_device *device) +#ifdef CONFIG_ACPI_CPU_FREQ_PSS +static int acpi_pss_perf_init(struct acpi_processor *pr, + struct acpi_device *device) { - struct acpi_processor *pr = acpi_driver_data(device); - acpi_status status; int result = 0; - if (!pr) - return -ENODEV; - - if (pr->flags.need_hotplug_init) - return 0; - -#ifdef CONFIG_CPU_FREQ acpi_processor_ppc_has_changed(pr, 0); -#endif + acpi_processor_get_throttling_info(pr); if (pr->flags.throttling) pr->flags.limit = 1; - if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver) - acpi_processor_power_init(pr); - pr->cdev = thermal_cooling_device_register("Processor", device, &processor_cooling_ops); if (IS_ERR(pr->cdev)) { result = PTR_ERR(pr->cdev); - goto err_power_exit; + return result; } dev_dbg(&device->dev, "registered as cooling_device%d\n", @@ -204,6 +190,7 @@ static int __acpi_processor_start(struct acpi_device *device) "Failed to create sysfs link 'thermal_cooling'\n"); goto err_thermal_unregister; } + result = sysfs_create_link(&pr->cdev->device.kobj, &device->dev.kobj, "device"); @@ -213,17 +200,61 @@ static int __acpi_processor_start(struct acpi_device *device) goto err_remove_sysfs_thermal; } - status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, - acpi_processor_notify, device); - if (ACPI_SUCCESS(status)) - return 0; - sysfs_remove_link(&pr->cdev->device.kobj, "device"); err_remove_sysfs_thermal: sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); err_thermal_unregister: thermal_cooling_device_unregister(pr->cdev); - err_power_exit: + + return result; +} + +static void acpi_pss_perf_exit(struct acpi_processor *pr, + struct acpi_device *device) +{ + if (pr->cdev) { + sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); + sysfs_remove_link(&pr->cdev->device.kobj, "device"); + thermal_cooling_device_unregister(pr->cdev); + pr->cdev = NULL; + } +} +#else +static inline int acpi_pss_perf_init(struct acpi_processor *pr, + struct acpi_device *device) +{ + return 0; +} + +static inline void acpi_pss_perf_exit(struct acpi_processor *pr, + struct acpi_device *device) {} +#endif /* CONFIG_ACPI_CPU_FREQ_PSS */ + +static int __acpi_processor_start(struct acpi_device *device) +{ + struct acpi_processor *pr = acpi_driver_data(device); + acpi_status status; + int result = 0; + + if (!pr) + return -ENODEV; + + if (pr->flags.need_hotplug_init) + return 0; + + if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver) + acpi_processor_power_init(pr); + + result = acpi_pss_perf_init(pr, device); + if (result) + goto err_power_exit; + + status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, + acpi_processor_notify, device); + if (ACPI_SUCCESS(status)) + return 0; + +err_power_exit: acpi_processor_power_exit(pr); return result; } @@ -252,15 +283,10 @@ static int acpi_processor_stop(struct device *dev) pr = acpi_driver_data(device); if (!pr) return 0; - acpi_processor_power_exit(pr); - if (pr->cdev) { - sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); - sysfs_remove_link(&pr->cdev->device.kobj, "device"); - thermal_cooling_device_unregister(pr->cdev); - pr->cdev = NULL; - } + acpi_pss_perf_exit(pr, device); + return 0; } diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index d540f42c9232..175c86bee3a9 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -21,10 +21,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index cfc8aba72f86..bb01dea39fdc 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -20,10 +20,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * */ #include <linux/kernel.h> @@ -87,7 +83,7 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb, if (ignore_ppc) return 0; - if (event != CPUFREQ_INCOMPATIBLE) + if (event != CPUFREQ_ADJUST) return 0; mutex_lock(&performance_mutex); @@ -784,9 +780,7 @@ acpi_processor_register_performance(struct acpi_processor_performance EXPORT_SYMBOL(acpi_processor_register_performance); -void -acpi_processor_unregister_performance(struct acpi_processor_performance - *performance, unsigned int cpu) +void acpi_processor_unregister_performance(unsigned int cpu) { struct acpi_processor *pr; diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index e003663b2f8e..1fed84a092c2 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -19,10 +19,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index 84243c32e29c..f170d746336d 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -19,10 +19,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index 7836e2e980f4..6d99450549c5 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -528,13 +528,14 @@ int acpi_dev_prop_read(struct acpi_device *adev, const char *propname, if (!val) return obj->package.count; - else if (nval <= 0) - return -EINVAL; if (nval > obj->package.count) return -EOVERFLOW; + else if (nval <= 0) + return -EINVAL; items = obj->package.elements; + switch (proptype) { case DEV_PROP_U8: ret = acpi_copy_property_array_u8(items, (u8 *)val, nval); diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index f1c966e05078..15d22db05054 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -15,10 +15,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index 01504c819e8f..cb3dedb1beae 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -17,10 +17,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index ec256352f423..01136b879038 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -115,264 +115,6 @@ int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, return 0; } -/** - * create_pnp_modalias - Create hid/cid(s) string for modalias and uevent - * @acpi_dev: ACPI device object. - * @modalias: Buffer to print into. - * @size: Size of the buffer. - * - * Creates hid/cid(s) string needed for modalias and uevent - * e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get: - * char *modalias: "acpi:IBM0001:ACPI0001" - * Return: 0: no _HID and no _CID - * -EINVAL: output error - * -ENOMEM: output is truncated -*/ -static int create_pnp_modalias(struct acpi_device *acpi_dev, char *modalias, - int size) -{ - int len; - int count; - struct acpi_hardware_id *id; - - /* - * Since we skip ACPI_DT_NAMESPACE_HID from the modalias below, 0 should - * be returned if ACPI_DT_NAMESPACE_HID is the only ACPI/PNP ID in the - * device's list. - */ - count = 0; - list_for_each_entry(id, &acpi_dev->pnp.ids, list) - if (strcmp(id->id, ACPI_DT_NAMESPACE_HID)) - count++; - - if (!count) - return 0; - - len = snprintf(modalias, size, "acpi:"); - if (len <= 0) - return len; - - size -= len; - - list_for_each_entry(id, &acpi_dev->pnp.ids, list) { - if (!strcmp(id->id, ACPI_DT_NAMESPACE_HID)) - continue; - - count = snprintf(&modalias[len], size, "%s:", id->id); - if (count < 0) - return -EINVAL; - - if (count >= size) - return -ENOMEM; - - len += count; - size -= count; - } - modalias[len] = '\0'; - return len; -} - -/** - * create_of_modalias - Creates DT compatible string for modalias and uevent - * @acpi_dev: ACPI device object. - * @modalias: Buffer to print into. - * @size: Size of the buffer. - * - * Expose DT compatible modalias as of:NnameTCcompatible. This function should - * only be called for devices having ACPI_DT_NAMESPACE_HID in their list of - * ACPI/PNP IDs. - */ -static int create_of_modalias(struct acpi_device *acpi_dev, char *modalias, - int size) -{ - struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER }; - const union acpi_object *of_compatible, *obj; - int len, count; - int i, nval; - char *c; - - acpi_get_name(acpi_dev->handle, ACPI_SINGLE_NAME, &buf); - /* DT strings are all in lower case */ - for (c = buf.pointer; *c != '\0'; c++) - *c = tolower(*c); - - len = snprintf(modalias, size, "of:N%sT", (char *)buf.pointer); - ACPI_FREE(buf.pointer); - - if (len <= 0) - return len; - - of_compatible = acpi_dev->data.of_compatible; - if (of_compatible->type == ACPI_TYPE_PACKAGE) { - nval = of_compatible->package.count; - obj = of_compatible->package.elements; - } else { /* Must be ACPI_TYPE_STRING. */ - nval = 1; - obj = of_compatible; - } - for (i = 0; i < nval; i++, obj++) { - count = snprintf(&modalias[len], size, "C%s", - obj->string.pointer); - if (count < 0) - return -EINVAL; - - if (count >= size) - return -ENOMEM; - - len += count; - size -= count; - } - modalias[len] = '\0'; - return len; -} - -/* - * acpi_companion_match() - Can we match via ACPI companion device - * @dev: Device in question - * - * Check if the given device has an ACPI companion and if that companion has - * a valid list of PNP IDs, and if the device is the first (primary) physical - * device associated with it. Return the companion pointer if that's the case - * or NULL otherwise. - * - * If multiple physical devices are attached to a single ACPI companion, we need - * to be careful. The usage scenario for this kind of relationship is that all - * of the physical devices in question use resources provided by the ACPI - * companion. A typical case is an MFD device where all the sub-devices share - * the parent's ACPI companion. In such cases we can only allow the primary - * (first) physical device to be matched with the help of the companion's PNP - * IDs. - * - * Additional physical devices sharing the ACPI companion can still use - * resources available from it but they will be matched normally using functions - * provided by their bus types (and analogously for their modalias). - */ -static struct acpi_device *acpi_companion_match(const struct device *dev) -{ - struct acpi_device *adev; - struct mutex *physical_node_lock; - - adev = ACPI_COMPANION(dev); - if (!adev) - return NULL; - - if (list_empty(&adev->pnp.ids)) - return NULL; - - physical_node_lock = &adev->physical_node_lock; - mutex_lock(physical_node_lock); - if (list_empty(&adev->physical_node_list)) { - adev = NULL; - } else { - const struct acpi_device_physical_node *node; - - node = list_first_entry(&adev->physical_node_list, - struct acpi_device_physical_node, node); - if (node->dev != dev) - adev = NULL; - } - mutex_unlock(physical_node_lock); - - return adev; -} - -static int __acpi_device_uevent_modalias(struct acpi_device *adev, - struct kobj_uevent_env *env) -{ - int len; - - if (!adev) - return -ENODEV; - - if (list_empty(&adev->pnp.ids)) - return 0; - - if (add_uevent_var(env, "MODALIAS=")) - return -ENOMEM; - - len = create_pnp_modalias(adev, &env->buf[env->buflen - 1], - sizeof(env->buf) - env->buflen); - if (len < 0) - return len; - - env->buflen += len; - if (!adev->data.of_compatible) - return 0; - - if (len > 0 && add_uevent_var(env, "MODALIAS=")) - return -ENOMEM; - - len = create_of_modalias(adev, &env->buf[env->buflen - 1], - sizeof(env->buf) - env->buflen); - if (len < 0) - return len; - - env->buflen += len; - - return 0; -} - -/* - * Creates uevent modalias field for ACPI enumerated devices. - * Because the other buses does not support ACPI HIDs & CIDs. - * e.g. for a device with hid:IBM0001 and cid:ACPI0001 you get: - * "acpi:IBM0001:ACPI0001" - */ -int acpi_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env) -{ - return __acpi_device_uevent_modalias(acpi_companion_match(dev), env); -} -EXPORT_SYMBOL_GPL(acpi_device_uevent_modalias); - -static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size) -{ - int len, count; - - if (!adev) - return -ENODEV; - - if (list_empty(&adev->pnp.ids)) - return 0; - - len = create_pnp_modalias(adev, buf, size - 1); - if (len < 0) { - return len; - } else if (len > 0) { - buf[len++] = '\n'; - size -= len; - } - if (!adev->data.of_compatible) - return len; - - count = create_of_modalias(adev, buf + len, size - 1); - if (count < 0) { - return count; - } else if (count > 0) { - len += count; - buf[len++] = '\n'; - } - - return len; -} - -/* - * Creates modalias sysfs attribute for ACPI enumerated devices. - * Because the other buses does not support ACPI HIDs & CIDs. - * e.g. for a device with hid:IBM0001 and cid:ACPI0001 you get: - * "acpi:IBM0001:ACPI0001" - */ -int acpi_device_modalias(struct device *dev, char *buf, int size) -{ - return __acpi_device_modalias(acpi_companion_match(dev), buf, size); -} -EXPORT_SYMBOL_GPL(acpi_device_modalias); - -static ssize_t -acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { - return __acpi_device_modalias(to_acpi_device(dev), buf, 1024); -} -static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL); - bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent) { struct acpi_device_physical_node *pn; @@ -701,423 +443,6 @@ void acpi_device_hotplug(struct acpi_device *adev, u32 src) unlock_device_hotplug(); } -static ssize_t real_power_state_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct acpi_device *adev = to_acpi_device(dev); - int state; - int ret; - - ret = acpi_device_get_power(adev, &state); - if (ret) - return ret; - - return sprintf(buf, "%s\n", acpi_power_state_string(state)); -} - -static DEVICE_ATTR(real_power_state, 0444, real_power_state_show, NULL); - -static ssize_t power_state_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct acpi_device *adev = to_acpi_device(dev); - - return sprintf(buf, "%s\n", acpi_power_state_string(adev->power.state)); -} - -static DEVICE_ATTR(power_state, 0444, power_state_show, NULL); - -static ssize_t -acpi_eject_store(struct device *d, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct acpi_device *acpi_device = to_acpi_device(d); - acpi_object_type not_used; - acpi_status status; - - if (!count || buf[0] != '1') - return -EINVAL; - - if ((!acpi_device->handler || !acpi_device->handler->hotplug.enabled) - && !acpi_device->driver) - return -ENODEV; - - status = acpi_get_type(acpi_device->handle, ¬_used); - if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable) - return -ENODEV; - - get_device(&acpi_device->dev); - status = acpi_hotplug_schedule(acpi_device, ACPI_OST_EC_OSPM_EJECT); - if (ACPI_SUCCESS(status)) - return count; - - put_device(&acpi_device->dev); - acpi_evaluate_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, - ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); - return status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN; -} - -static DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store); - -static ssize_t -acpi_device_hid_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct acpi_device *acpi_dev = to_acpi_device(dev); - - return sprintf(buf, "%s\n", acpi_device_hid(acpi_dev)); -} -static DEVICE_ATTR(hid, 0444, acpi_device_hid_show, NULL); - -static ssize_t acpi_device_uid_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - - return sprintf(buf, "%s\n", acpi_dev->pnp.unique_id); -} -static DEVICE_ATTR(uid, 0444, acpi_device_uid_show, NULL); - -static ssize_t acpi_device_adr_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - - return sprintf(buf, "0x%08x\n", - (unsigned int)(acpi_dev->pnp.bus_address)); -} -static DEVICE_ATTR(adr, 0444, acpi_device_adr_show, NULL); - -static ssize_t -acpi_device_path_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL}; - int result; - - result = acpi_get_name(acpi_dev->handle, ACPI_FULL_PATHNAME, &path); - if (result) - goto end; - - result = sprintf(buf, "%s\n", (char*)path.pointer); - kfree(path.pointer); -end: - return result; -} -static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL); - -/* sysfs file that shows description text from the ACPI _STR method */ -static ssize_t description_show(struct device *dev, - struct device_attribute *attr, - char *buf) { - struct acpi_device *acpi_dev = to_acpi_device(dev); - int result; - - if (acpi_dev->pnp.str_obj == NULL) - return 0; - - /* - * The _STR object contains a Unicode identifier for a device. - * We need to convert to utf-8 so it can be displayed. - */ - result = utf16s_to_utf8s( - (wchar_t *)acpi_dev->pnp.str_obj->buffer.pointer, - acpi_dev->pnp.str_obj->buffer.length, - UTF16_LITTLE_ENDIAN, buf, - PAGE_SIZE); - - buf[result++] = '\n'; - - return result; -} -static DEVICE_ATTR(description, 0444, description_show, NULL); - -static ssize_t -acpi_device_sun_show(struct device *dev, struct device_attribute *attr, - char *buf) { - struct acpi_device *acpi_dev = to_acpi_device(dev); - acpi_status status; - unsigned long long sun; - - status = acpi_evaluate_integer(acpi_dev->handle, "_SUN", NULL, &sun); - if (ACPI_FAILURE(status)) - return -ENODEV; - - return sprintf(buf, "%llu\n", sun); -} -static DEVICE_ATTR(sun, 0444, acpi_device_sun_show, NULL); - -static ssize_t status_show(struct device *dev, struct device_attribute *attr, - char *buf) { - struct acpi_device *acpi_dev = to_acpi_device(dev); - acpi_status status; - unsigned long long sta; - - status = acpi_evaluate_integer(acpi_dev->handle, "_STA", NULL, &sta); - if (ACPI_FAILURE(status)) - return -ENODEV; - - return sprintf(buf, "%llu\n", sta); -} -static DEVICE_ATTR_RO(status); - -static int acpi_device_setup_files(struct acpi_device *dev) -{ - struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; - acpi_status status; - int result = 0; - - /* - * Devices gotten from FADT don't have a "path" attribute - */ - if (dev->handle) { - result = device_create_file(&dev->dev, &dev_attr_path); - if (result) - goto end; - } - - if (!list_empty(&dev->pnp.ids)) { - result = device_create_file(&dev->dev, &dev_attr_hid); - if (result) - goto end; - - result = device_create_file(&dev->dev, &dev_attr_modalias); - if (result) - goto end; - } - - /* - * If device has _STR, 'description' file is created - */ - if (acpi_has_method(dev->handle, "_STR")) { - status = acpi_evaluate_object(dev->handle, "_STR", - NULL, &buffer); - if (ACPI_FAILURE(status)) - buffer.pointer = NULL; - dev->pnp.str_obj = buffer.pointer; - result = device_create_file(&dev->dev, &dev_attr_description); - if (result) - goto end; - } - - if (dev->pnp.type.bus_address) - result = device_create_file(&dev->dev, &dev_attr_adr); - if (dev->pnp.unique_id) - result = device_create_file(&dev->dev, &dev_attr_uid); - - if (acpi_has_method(dev->handle, "_SUN")) { - result = device_create_file(&dev->dev, &dev_attr_sun); - if (result) - goto end; - } - - if (acpi_has_method(dev->handle, "_STA")) { - result = device_create_file(&dev->dev, &dev_attr_status); - if (result) - goto end; - } - - /* - * If device has _EJ0, 'eject' file is created that is used to trigger - * hot-removal function from userland. - */ - if (acpi_has_method(dev->handle, "_EJ0")) { - result = device_create_file(&dev->dev, &dev_attr_eject); - if (result) - return result; - } - - if (dev->flags.power_manageable) { - result = device_create_file(&dev->dev, &dev_attr_power_state); - if (result) - return result; - - if (dev->power.flags.power_resources) - result = device_create_file(&dev->dev, - &dev_attr_real_power_state); - } - -end: - return result; -} - -static void acpi_device_remove_files(struct acpi_device *dev) -{ - if (dev->flags.power_manageable) { - device_remove_file(&dev->dev, &dev_attr_power_state); - if (dev->power.flags.power_resources) - device_remove_file(&dev->dev, - &dev_attr_real_power_state); - } - - /* - * If device has _STR, remove 'description' file - */ - if (acpi_has_method(dev->handle, "_STR")) { - kfree(dev->pnp.str_obj); - device_remove_file(&dev->dev, &dev_attr_description); - } - /* - * If device has _EJ0, remove 'eject' file. - */ - if (acpi_has_method(dev->handle, "_EJ0")) - device_remove_file(&dev->dev, &dev_attr_eject); - - if (acpi_has_method(dev->handle, "_SUN")) - device_remove_file(&dev->dev, &dev_attr_sun); - - if (dev->pnp.unique_id) - device_remove_file(&dev->dev, &dev_attr_uid); - if (dev->pnp.type.bus_address) - device_remove_file(&dev->dev, &dev_attr_adr); - device_remove_file(&dev->dev, &dev_attr_modalias); - device_remove_file(&dev->dev, &dev_attr_hid); - if (acpi_has_method(dev->handle, "_STA")) - device_remove_file(&dev->dev, &dev_attr_status); - if (dev->handle) - device_remove_file(&dev->dev, &dev_attr_path); -} -/* -------------------------------------------------------------------------- - ACPI Bus operations - -------------------------------------------------------------------------- */ - -/** - * acpi_of_match_device - Match device object using the "compatible" property. - * @adev: ACPI device object to match. - * @of_match_table: List of device IDs to match against. - * - * If @dev has an ACPI companion which has ACPI_DT_NAMESPACE_HID in its list of - * identifiers and a _DSD object with the "compatible" property, use that - * property to match against the given list of identifiers. - */ -static bool acpi_of_match_device(struct acpi_device *adev, - const struct of_device_id *of_match_table) -{ - const union acpi_object *of_compatible, *obj; - int i, nval; - - if (!adev) - return false; - - of_compatible = adev->data.of_compatible; - if (!of_match_table || !of_compatible) - return false; - - if (of_compatible->type == ACPI_TYPE_PACKAGE) { - nval = of_compatible->package.count; - obj = of_compatible->package.elements; - } else { /* Must be ACPI_TYPE_STRING. */ - nval = 1; - obj = of_compatible; - } - /* Now we can look for the driver DT compatible strings */ - for (i = 0; i < nval; i++, obj++) { - const struct of_device_id *id; - - for (id = of_match_table; id->compatible[0]; id++) - if (!strcasecmp(obj->string.pointer, id->compatible)) - return true; - } - - return false; -} - -static bool __acpi_match_device_cls(const struct acpi_device_id *id, - struct acpi_hardware_id *hwid) -{ - int i, msk, byte_shift; - char buf[3]; - - if (!id->cls) - return false; - - /* Apply class-code bitmask, before checking each class-code byte */ - for (i = 1; i <= 3; i++) { - byte_shift = 8 * (3 - i); - msk = (id->cls_msk >> byte_shift) & 0xFF; - if (!msk) - continue; - - sprintf(buf, "%02x", (id->cls >> byte_shift) & msk); - if (strncmp(buf, &hwid->id[(i - 1) * 2], 2)) - return false; - } - return true; -} - -static const struct acpi_device_id *__acpi_match_device( - struct acpi_device *device, - const struct acpi_device_id *ids, - const struct of_device_id *of_ids) -{ - const struct acpi_device_id *id; - struct acpi_hardware_id *hwid; - - /* - * If the device is not present, it is unnecessary to load device - * driver for it. - */ - if (!device || !device->status.present) - return NULL; - - list_for_each_entry(hwid, &device->pnp.ids, list) { - /* First, check the ACPI/PNP IDs provided by the caller. */ - for (id = ids; id->id[0] || id->cls; id++) { - if (id->id[0] && !strcmp((char *) id->id, hwid->id)) - return id; - else if (id->cls && __acpi_match_device_cls(id, hwid)) - return id; - } - - /* - * Next, check ACPI_DT_NAMESPACE_HID and try to match the - * "compatible" property if found. - * - * The id returned by the below is not valid, but the only - * caller passing non-NULL of_ids here is only interested in - * whether or not the return value is NULL. - */ - if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id) - && acpi_of_match_device(device, of_ids)) - return id; - } - return NULL; -} - -/** - * acpi_match_device - Match a struct device against a given list of ACPI IDs - * @ids: Array of struct acpi_device_id object to match against. - * @dev: The device structure to match. - * - * Check if @dev has a valid ACPI handle and if there is a struct acpi_device - * object for that handle and use that object to match against a given list of - * device IDs. - * - * Return a pointer to the first matching ID on success or %NULL on failure. - */ -const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, - const struct device *dev) -{ - return __acpi_match_device(acpi_companion_match(dev), ids, NULL); -} -EXPORT_SYMBOL_GPL(acpi_match_device); - -int acpi_match_device_ids(struct acpi_device *device, - const struct acpi_device_id *ids) -{ - return __acpi_match_device(device, ids, NULL) ? 0 : -ENOENT; -} -EXPORT_SYMBOL(acpi_match_device_ids); - -bool acpi_driver_match_device(struct device *dev, - const struct device_driver *drv) -{ - if (!drv->acpi_match_table) - return acpi_of_match_device(ACPI_COMPANION(dev), - drv->of_match_table); - - return !!__acpi_match_device(acpi_companion_match(dev), - drv->acpi_match_table, drv->of_match_table); -} -EXPORT_SYMBOL_GPL(acpi_driver_match_device); - static void acpi_free_power_resources_lists(struct acpi_device *device) { int i; @@ -1144,144 +469,6 @@ static void acpi_device_release(struct device *dev) kfree(acpi_dev); } -static int acpi_bus_match(struct device *dev, struct device_driver *drv) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_driver *acpi_drv = to_acpi_driver(drv); - - return acpi_dev->flags.match_driver - && !acpi_match_device_ids(acpi_dev, acpi_drv->ids); -} - -static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env) -{ - return __acpi_device_uevent_modalias(to_acpi_device(dev), env); -} - -static void acpi_device_notify(acpi_handle handle, u32 event, void *data) -{ - struct acpi_device *device = data; - - device->driver->ops.notify(device, event); -} - -static void acpi_device_notify_fixed(void *data) -{ - struct acpi_device *device = data; - - /* Fixed hardware devices have no handles */ - acpi_device_notify(NULL, ACPI_FIXED_HARDWARE_EVENT, device); -} - -static u32 acpi_device_fixed_event(void *data) -{ - acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_device_notify_fixed, data); - return ACPI_INTERRUPT_HANDLED; -} - -static int acpi_device_install_notify_handler(struct acpi_device *device) -{ - acpi_status status; - - if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) - status = - acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, - acpi_device_fixed_event, - device); - else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) - status = - acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, - acpi_device_fixed_event, - device); - else - status = acpi_install_notify_handler(device->handle, - ACPI_DEVICE_NOTIFY, - acpi_device_notify, - device); - - if (ACPI_FAILURE(status)) - return -EINVAL; - return 0; -} - -static void acpi_device_remove_notify_handler(struct acpi_device *device) -{ - if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) - acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, - acpi_device_fixed_event); - else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) - acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, - acpi_device_fixed_event); - else - acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, - acpi_device_notify); -} - -static int acpi_device_probe(struct device *dev) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver); - int ret; - - if (acpi_dev->handler && !acpi_is_pnp_device(acpi_dev)) - return -EINVAL; - - if (!acpi_drv->ops.add) - return -ENOSYS; - - ret = acpi_drv->ops.add(acpi_dev); - if (ret) - return ret; - - acpi_dev->driver = acpi_drv; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Driver [%s] successfully bound to device [%s]\n", - acpi_drv->name, acpi_dev->pnp.bus_id)); - - if (acpi_drv->ops.notify) { - ret = acpi_device_install_notify_handler(acpi_dev); - if (ret) { - if (acpi_drv->ops.remove) - acpi_drv->ops.remove(acpi_dev); - - acpi_dev->driver = NULL; - acpi_dev->driver_data = NULL; - return ret; - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s]\n", - acpi_drv->name, acpi_dev->pnp.bus_id)); - get_device(dev); - return 0; -} - -static int acpi_device_remove(struct device * dev) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_driver *acpi_drv = acpi_dev->driver; - - if (acpi_drv) { - if (acpi_drv->ops.notify) - acpi_device_remove_notify_handler(acpi_dev); - if (acpi_drv->ops.remove) - acpi_drv->ops.remove(acpi_dev); - } - acpi_dev->driver = NULL; - acpi_dev->driver_data = NULL; - - put_device(dev); - return 0; -} - -struct bus_type acpi_bus_type = { - .name = "acpi", - .match = acpi_bus_match, - .probe = acpi_device_probe, - .remove = acpi_device_remove, - .uevent = acpi_device_uevent, -}; - static void acpi_device_del(struct acpi_device *device) { mutex_lock(&acpi_device_lock); @@ -1529,47 +716,6 @@ struct acpi_device *acpi_get_next_child(struct device *dev, } /* -------------------------------------------------------------------------- - Driver Management - -------------------------------------------------------------------------- */ -/** - * acpi_bus_register_driver - register a driver with the ACPI bus - * @driver: driver being registered - * - * Registers a driver with the ACPI bus. Searches the namespace for all - * devices that match the driver's criteria and binds. Returns zero for - * success or a negative error status for failure. - */ -int acpi_bus_register_driver(struct acpi_driver *driver) -{ - int ret; - - if (acpi_disabled) - return -ENODEV; - driver->drv.name = driver->name; - driver->drv.bus = &acpi_bus_type; - driver->drv.owner = driver->owner; - - ret = driver_register(&driver->drv); - return ret; -} - -EXPORT_SYMBOL(acpi_bus_register_driver); - -/** - * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus - * @driver: driver to unregister - * - * Unregisters a driver with the ACPI bus. Searches the namespace for all - * devices that match the driver's criteria and unbinds. - */ -void acpi_bus_unregister_driver(struct acpi_driver *driver) -{ - driver_unregister(&driver->drv); -} - -EXPORT_SYMBOL(acpi_bus_unregister_driver); - -/* -------------------------------------------------------------------------- Device Enumeration -------------------------------------------------------------------------- */ static struct acpi_device *acpi_bus_get_parent(acpi_handle handle) @@ -2744,12 +1890,6 @@ int __init acpi_scan_init(void) { int result; - result = bus_register(&acpi_bus_type); - if (result) { - /* We don't want to quit even if we failed to add suspend/resume */ - printk(KERN_ERR PREFIX "Could not register bus type\n"); - } - acpi_pci_root_init(); acpi_pci_link_init(); acpi_processor_init(); diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 0876d77b3206..40a42655227c 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -69,6 +69,8 @@ static const struct acpi_dlevel acpi_debug_levels[] = { ACPI_DEBUG_INIT(ACPI_LV_INIT), ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT), ACPI_DEBUG_INIT(ACPI_LV_INFO), + ACPI_DEBUG_INIT(ACPI_LV_REPAIR), + ACPI_DEBUG_INIT(ACPI_LV_TRACE_POINT), ACPI_DEBUG_INIT(ACPI_LV_INIT_NAMES), ACPI_DEBUG_INIT(ACPI_LV_PARSE), @@ -162,55 +164,116 @@ static const struct kernel_param_ops param_ops_debug_level = { module_param_cb(debug_layer, ¶m_ops_debug_layer, &acpi_dbg_layer, 0644); module_param_cb(debug_level, ¶m_ops_debug_level, &acpi_dbg_level, 0644); -static char trace_method_name[6]; -module_param_string(trace_method_name, trace_method_name, 6, 0644); -static unsigned int trace_debug_layer; -module_param(trace_debug_layer, uint, 0644); -static unsigned int trace_debug_level; -module_param(trace_debug_level, uint, 0644); +static char trace_method_name[1024]; -static int param_set_trace_state(const char *val, struct kernel_param *kp) +int param_set_trace_method_name(const char *val, const struct kernel_param *kp) { - int result = 0; + u32 saved_flags = 0; + bool is_abs_path = true; - if (!strncmp(val, "enable", sizeof("enable") - 1)) { - result = acpi_debug_trace(trace_method_name, trace_debug_level, - trace_debug_layer, 0); - if (result) - result = -EBUSY; - goto exit; - } + if (*val != '\\') + is_abs_path = false; - if (!strncmp(val, "disable", sizeof("disable") - 1)) { - int name = 0; - result = acpi_debug_trace((char *)&name, trace_debug_level, - trace_debug_layer, 0); - if (result) - result = -EBUSY; - goto exit; + if ((is_abs_path && strlen(val) > 1023) || + (!is_abs_path && strlen(val) > 1022)) { + pr_err("%s: string parameter too long\n", kp->name); + return -ENOSPC; } - if (!strncmp(val, "1", 1)) { - result = acpi_debug_trace(trace_method_name, trace_debug_level, - trace_debug_layer, 1); - if (result) - result = -EBUSY; - goto exit; + /* + * It's not safe to update acpi_gbl_trace_method_name without + * having the tracer stopped, so we save the original tracer + * state and disable it. + */ + saved_flags = acpi_gbl_trace_flags; + (void)acpi_debug_trace(NULL, + acpi_gbl_trace_dbg_level, + acpi_gbl_trace_dbg_layer, + 0); + + /* This is a hack. We can't kmalloc in early boot. */ + if (is_abs_path) + strcpy(trace_method_name, val); + else { + trace_method_name[0] = '\\'; + strcpy(trace_method_name+1, val); } - result = -EINVAL; -exit: - return result; + /* Restore the original tracer state */ + (void)acpi_debug_trace(trace_method_name, + acpi_gbl_trace_dbg_level, + acpi_gbl_trace_dbg_layer, + saved_flags); + + return 0; +} + +static int param_get_trace_method_name(char *buffer, const struct kernel_param *kp) +{ + return scnprintf(buffer, PAGE_SIZE, "%s", acpi_gbl_trace_method_name); +} + +static const struct kernel_param_ops param_ops_trace_method = { + .set = param_set_trace_method_name, + .get = param_get_trace_method_name, +}; + +static const struct kernel_param_ops param_ops_trace_attrib = { + .set = param_set_uint, + .get = param_get_uint, +}; + +module_param_cb(trace_method_name, ¶m_ops_trace_method, &trace_method_name, 0644); +module_param_cb(trace_debug_layer, ¶m_ops_trace_attrib, &acpi_gbl_trace_dbg_layer, 0644); +module_param_cb(trace_debug_level, ¶m_ops_trace_attrib, &acpi_gbl_trace_dbg_level, 0644); + +static int param_set_trace_state(const char *val, struct kernel_param *kp) +{ + acpi_status status; + const char *method = trace_method_name; + u32 flags = 0; + +/* So "xxx-once" comparison should go prior than "xxx" comparison */ +#define acpi_compare_param(val, key) \ + strncmp((val), (key), sizeof(key) - 1) + + if (!acpi_compare_param(val, "enable")) { + method = NULL; + flags = ACPI_TRACE_ENABLED; + } else if (!acpi_compare_param(val, "disable")) + method = NULL; + else if (!acpi_compare_param(val, "method-once")) + flags = ACPI_TRACE_ENABLED | ACPI_TRACE_ONESHOT; + else if (!acpi_compare_param(val, "method")) + flags = ACPI_TRACE_ENABLED; + else if (!acpi_compare_param(val, "opcode-once")) + flags = ACPI_TRACE_ENABLED | ACPI_TRACE_ONESHOT | ACPI_TRACE_OPCODE; + else if (!acpi_compare_param(val, "opcode")) + flags = ACPI_TRACE_ENABLED | ACPI_TRACE_OPCODE; + else + return -EINVAL; + + status = acpi_debug_trace(method, + acpi_gbl_trace_dbg_level, + acpi_gbl_trace_dbg_layer, + flags); + if (ACPI_FAILURE(status)) + return -EBUSY; + + return 0; } static int param_get_trace_state(char *buffer, struct kernel_param *kp) { - if (!acpi_gbl_trace_method_name) + if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED)) return sprintf(buffer, "disable"); else { - if (acpi_gbl_trace_flags & 1) - return sprintf(buffer, "1"); - else + if (acpi_gbl_trace_method_name) { + if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) + return sprintf(buffer, "method-once"); + else + return sprintf(buffer, "method"); + } else return sprintf(buffer, "enable"); } return 0; diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 2e19189da0ee..17a6fa01a338 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -15,10 +15,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * */ diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 6d4e44ea74ac..fc28b9f5aa84 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -16,10 +16,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * This driver fully implements the ACPI thermal policy as described in the diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 67c548ad3764..475c9079bf85 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -16,10 +16,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ |