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Merge tag 'acpi-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Browse Source 
Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to the 20181213 upstream
  revision, make it possible to build the ACPI subsystem without PCI
  support, and a new OEM _OSI string, add a new device support to the
  ACPI driver for AMD SoCs and fix PM handling in the ACPI driver for
  Intel SoCs, fix the SPCR table handling and do some assorted fixes and
  cleanups.

  Specifics:

   - Update the ACPICA code in the kernel to the 20181213 upstream
     revision including:
      * New Windows _OSI strings (Bob Moore, Jung-uk Kim).
      * Buffers-to-string conversions update (Bob Moore).
      * Removal of support for expressions in package elements (Bob
        Moore).
      * New option to display method/object evaluation in debug output
        (Bob Moore).
      * Compiler improvements (Bob Moore, Erik Schmauss).
      * Minor debugger fix (Erik Schmauss).
      * Disassembler improvement (Erik Schmauss).
      * Assorted cleanups (Bob Moore, Colin Ian King, Erik Schmauss).

   - Add support for a new OEM _OSI string to indicate special handling
     of secondary graphics adapters on some systems (Alex Hung).

   - Make it possible to build the ACPI subystem without PCI support
     (Sinan Kaya).

   - Make the SPCR table handling regard baud rate 0 in accordance with
     the specification of it and make the DSDT override code support
     DSDT code names generated by recent ACPICA (Andy Shevchenko, Wang
     Dongsheng, Nathan Chancellor).

   - Add clock frequency for Hisilicon Hip08 SPI controller to the ACPI
     driver for AMD SoCs (APD) (Jay Fang).

   - Fix the PM handling during device init in the ACPI driver for Intel
     SoCs (LPSS) (Hans de Goede).

   - Avoid double panic()s by clearing the APEI GHES block_status before
     panic() (Lenny Szubowicz).

   - Clean up a function invocation in the ACPI core and get rid of some
     code duplication by using the DEFINE_SHOW_ATTRIBUTE macro in the
     APEI support code (Alexey Dobriyan, Yangtao Li)"

* tag 'acpi-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (31 commits)
  ACPI / tables: Add an ifdef around amlcode and dsdt_amlcode
  ACPI/APEI: Clear GHES block_status before panic()
  ACPI: Make PCI slot detection driver depend on PCI
  ACPI/IORT: Stub out ACS functions when CONFIG_PCI is not set
  arm64: select ACPI PCI code only when both features are enabled
  PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set
  ACPICA: Remove PCI bits from ACPICA when CONFIG_PCI is unset
  ACPI: Allow CONFIG_PCI to be unset for reboot
  ACPI: Move PCI reset to a separate function
  ACPI / OSI: Add OEM _OSI string to enable dGPU direct output
  ACPI / tables: add DSDT AmlCode new declaration name support
  ACPICA: Update version to 20181213
  ACPICA: change coding style to match ACPICA, no functional change
  ACPICA: Debug output: Add option to display method/object evaluation
  ACPICA: disassembler: disassemble OEMx tables as AML
  ACPICA: Add "Windows 2018.2" string in the _OSI support
  ACPICA: Expressions in package elements are not supported
  ACPICA: Update buffer-to-string conversions
  ACPICA: add comments, no functional change
  ACPICA: Remove defines that use deprecated flag
  ...
This commit is contained in:
Linus Torvalds
2018-12-25 14:21:18 -08:00
parent 1e2af254ef 3eb8536846
commit e6d1315006
57 changed files with 424 additions and 169 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/acpi/Kconfig
View File

@@ -9,7 +9,6 @@ config ARCH_SUPPORTS_ACPI
menuconfig ACPI
bool "ACPI (Advanced Configuration and Power Interface) Support"
depends on ARCH_SUPPORTS_ACPI
depends on PCI
select PNP
default y if X86
help
@@ -336,7 +335,7 @@ config ACPI_CUSTOM_DSDT_FILE
See Documentation/acpi/dsdt-override.txt
Enter the full path name to the file which includes the AmlCode
declaration.
or dsdt_aml_code declaration.
If unsure, don't enter a file name.
@@ -370,7 +369,7 @@ config ACPI_DEBUG
config ACPI_PCI_SLOT
bool "PCI slot detection driver"
depends on SYSFS
depends on SYSFS && PCI
help
This driver creates entries in /sys/bus/pci/slots/ for all PCI
slots in the system. This can help correlate PCI bus addresses,

2
drivers/acpi/Makefile
View File

@@ -39,7 +39,7 @@ acpi-y += processor_core.o
acpi-$(CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC) += processor_pdc.o
acpi-y += ec.o
acpi-$(CONFIG_ACPI_DOCK) += dock.o
acpi-y += pci_root.o pci_link.o pci_irq.o
acpi-$(CONFIG_PCI) += pci_root.o pci_link.o pci_irq.o
obj-$(CONFIG_ACPI_MCFG) += pci_mcfg.o
acpi-y += acpi_lpss.o acpi_apd.o
acpi-y += acpi_platform.o

6
drivers/acpi/acpi_apd.c
View File

@@ -166,6 +166,11 @@ static const struct apd_device_desc thunderx2_i2c_desc = {
.setup = acpi_apd_setup,
.fixed_clk_rate = 125000000,
};
static const struct apd_device_desc hip08_spi_desc = {
.setup = acpi_apd_setup,
.fixed_clk_rate = 250000000,
};
#endif
#else
@@ -234,6 +239,7 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
{ "CAV9007", APD_ADDR(thunderx2_i2c_desc) },
{ "HISI02A1", APD_ADDR(hip07_i2c_desc) },
{ "HISI02A2", APD_ADDR(hip08_i2c_desc) },
{ "HISI0173", APD_ADDR(hip08_spi_desc) },
#endif
{ }
};

7
drivers/acpi/acpi_lpss.c
View File

@@ -673,12 +673,7 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
* have _PS0 and _PS3 without _PSC (and no power resources), so
* acpi_bus_init_power() will assume that the BIOS has put them into D0.
*/
ret = acpi_device_fix_up_power(adev);
if (ret) {
/* Skip the device, but continue the namespace scan. */
ret = 0;
goto err_out;
}
acpi_device_fix_up_power(adev);
adev->driver_data = pdata;
pdev = acpi_create_platform_device(adev, dev_desc->properties);

2
drivers/acpi/acpica/Makefile
View File

@@ -77,13 +77,13 @@ acpi-y += \
hwacpi.o \
hwesleep.o \
hwgpe.o \
hwpci.o \
hwregs.o \
hwsleep.o \
hwvalid.o \
hwxface.o \
hwxfsleep.o
acpi-$(CONFIG_PCI) += hwpci.o
acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o
acpi-y += \

4
drivers/acpi/acpica/acglobal.h
View File

@@ -172,11 +172,7 @@ ACPI_GLOBAL(u8, acpi_gbl_disable_mem_tracking);
*
****************************************************************************/
#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
#define NUM_PREDEFINED_NAMES 10
#else
#define NUM_PREDEFINED_NAMES 9
#endif
ACPI_GLOBAL(struct acpi_namespace_node, acpi_gbl_root_node_struct);
ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_root_node);

9
drivers/acpi/acpica/achware.h
View File

@@ -106,11 +106,20 @@ acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
struct acpi_gpe_block_info *gpe_block,
void *context);
#ifdef ACPI_PCI_CONFIGURED
/*
* hwpci - PCI configuration support
*/
acpi_status
acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
acpi_handle root_pci_device, acpi_handle pci_region);
#else
static inline acpi_status
acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, acpi_handle root_pci_device,
acpi_handle pci_region)
{
return AE_SUPPORT;
}
#endif
#endif /* __ACHWARE_H__ */

1
drivers/acpi/acpica/acnamesp.h
View File

@@ -34,6 +34,7 @@
#define ACPI_NS_TEMPORARY 0x0040
#define ACPI_NS_OVERRIDE_IF_FOUND 0x0080
#define ACPI_NS_EARLY_INIT 0x0100
#define ACPI_NS_PREFIX_MUST_EXIST 0x0200
/* Flags for acpi_ns_walk_namespace */

5
drivers/acpi/acpica/acstruct.h
View File

@@ -60,6 +60,8 @@ struct acpi_walk_state {
struct acpi_parse_state parser_state; /* Current state of parser */
u32 prev_arg_types;
u32 arg_count; /* push for fixed or var args */
u16 method_nesting_depth;
u8 method_is_nested;
struct acpi_namespace_node arguments[ACPI_METHOD_NUM_ARGS]; /* Control method arguments */
struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS]; /* Control method locals */
@@ -74,7 +76,8 @@ struct acpi_walk_state {
struct acpi_namespace_node *method_call_node; /* Called method Node */
union acpi_parse_object *method_call_op; /* method_call Op if running a method */
union acpi_operand_object *method_desc; /* Method descriptor if running a method */
struct acpi_namespace_node *method_node; /* Method node if running a method. */
struct acpi_namespace_node *method_node; /* Method node if running a method */
char *method_pathname; /* Full pathname of running method */
union acpi_parse_object *op; /* Current parser op */
const struct acpi_opcode_info *op_info; /* Info on current opcode */
union acpi_parse_object *origin; /* Start of walk [Obsolete] */

118
drivers/acpi/acpica/dbxface.c
View File

@@ -24,6 +24,13 @@ acpi_db_start_command(struct acpi_walk_state *walk_state,
void acpi_db_method_end(struct acpi_walk_state *walk_state);
#endif
#ifdef ACPI_DISASSEMBLER
static union acpi_parse_object *acpi_db_get_display_op(struct acpi_walk_state
*walk_state,
union acpi_parse_object
*op);
#endif
/*******************************************************************************
*
* FUNCTION: acpi_db_start_command
@@ -113,6 +120,70 @@ void acpi_db_signal_break_point(struct acpi_walk_state *walk_state)
acpi_os_printf("**break** Executed AML BreakPoint opcode\n");
}
#ifdef ACPI_DISASSEMBLER
/*******************************************************************************
*
* FUNCTION: acpi_db_get_display_op
*
* PARAMETERS: walk_state - Current walk
* op - Current executing op (from aml interpreter)
*
* RETURN: Opcode to display
*
* DESCRIPTION: Find the opcode to display during single stepping
*
******************************************************************************/
static union acpi_parse_object *acpi_db_get_display_op(struct acpi_walk_state
*walk_state,
union acpi_parse_object
*op)
{
union acpi_parse_object *display_op;
union acpi_parse_object *parent_op;
display_op = op;
parent_op = op->common.parent;
if (parent_op) {
if ((walk_state->control_state) &&
(walk_state->control_state->common.state ==
ACPI_CONTROL_PREDICATE_EXECUTING)) {
/*
* We are executing the predicate of an IF or WHILE statement
* Search upwards for the containing IF or WHILE so that the
* entire predicate can be displayed.
*/
while (parent_op) {
if ((parent_op->common.aml_opcode == AML_IF_OP)
|| (parent_op->common.aml_opcode ==
AML_WHILE_OP)) {
display_op = parent_op;
break;
}
parent_op = parent_op->common.parent;
}
} else {
while (parent_op) {
if ((parent_op->common.aml_opcode == AML_IF_OP)
|| (parent_op->common.aml_opcode ==
AML_ELSE_OP)
|| (parent_op->common.aml_opcode ==
AML_SCOPE_OP)
|| (parent_op->common.aml_opcode ==
AML_METHOD_OP)
|| (parent_op->common.aml_opcode ==
AML_WHILE_OP)) {
break;
}
display_op = parent_op;
parent_op = parent_op->common.parent;
}
}
}
return display_op;
}
#endif
/*******************************************************************************
*
* FUNCTION: acpi_db_single_step
@@ -134,8 +205,6 @@ acpi_db_single_step(struct acpi_walk_state *walk_state,
union acpi_parse_object *next;
acpi_status status = AE_OK;
u32 original_debug_level;
union acpi_parse_object *display_op;
union acpi_parse_object *parent_op;
u32 aml_offset;
ACPI_FUNCTION_ENTRY();
@@ -222,51 +291,12 @@ acpi_db_single_step(struct acpi_walk_state *walk_state,
next = op->common.next;
op->common.next = NULL;
display_op = op;
parent_op = op->common.parent;
if (parent_op) {
if ((walk_state->control_state) &&
(walk_state->control_state->common.state ==
ACPI_CONTROL_PREDICATE_EXECUTING)) {
/*
* We are executing the predicate of an IF or WHILE statement
* Search upwards for the containing IF or WHILE so that the
* entire predicate can be displayed.
*/
while (parent_op) {
if ((parent_op->common.aml_opcode ==
AML_IF_OP)
|| (parent_op->common.aml_opcode ==
AML_WHILE_OP)) {
display_op = parent_op;
break;
}
parent_op = parent_op->common.parent;
}
} else {
while (parent_op) {
if ((parent_op->common.aml_opcode ==
AML_IF_OP)
|| (parent_op->common.aml_opcode ==
AML_ELSE_OP)
|| (parent_op->common.aml_opcode ==
AML_SCOPE_OP)
|| (parent_op->common.aml_opcode ==
AML_METHOD_OP)
|| (parent_op->common.aml_opcode ==
AML_WHILE_OP)) {
break;
}
display_op = parent_op;
parent_op = parent_op->common.parent;
}
}
}
/* Now we can disassemble and display it */
#ifdef ACPI_DISASSEMBLER
acpi_dm_disassemble(walk_state, display_op, ACPI_UINT32_MAX);
acpi_dm_disassemble(walk_state,
acpi_db_get_display_op(walk_state, op),
ACPI_UINT32_MAX);
#else
/*
* The AML Disassembler is not configured - at least we can

14
drivers/acpi/acpica/dsmethod.c
View File

@@ -532,6 +532,9 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
goto cleanup;
}
next_walk_state->method_nesting_depth =
this_walk_state->method_nesting_depth + 1;
/*
* Delete the operands on the previous walkstate operand stack
* (they were copied to new objects)
@@ -549,6 +552,17 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
"**** Begin nested execution of [%4.4s] **** WalkState=%p\n",
method_node->name.ascii, next_walk_state));
this_walk_state->method_pathname =
acpi_ns_get_normalized_pathname(method_node, TRUE);
this_walk_state->method_is_nested = TRUE;
/* Optional object evaluation log */
ACPI_DEBUG_PRINT_RAW((ACPI_DB_EVALUATION,
"%-26s: %*s%s\n", " Nested method call",
next_walk_state->method_nesting_depth * 3, " ",
&this_walk_state->method_pathname[1]));
/* Invoke an internal method if necessary */
if (obj_desc->method.info_flags & ACPI_METHOD_INTERNAL_ONLY) {

11
drivers/acpi/acpica/dsobject.c
View File

@@ -18,7 +18,6 @@
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsobject")
#ifndef ACPI_NO_METHOD_EXECUTION
/*******************************************************************************
*
* FUNCTION: acpi_ds_build_internal_object
@@ -299,8 +298,6 @@ acpi_ds_create_node(struct acpi_walk_state *walk_state,
return_ACPI_STATUS(status);
}
#endif /* ACPI_NO_METHOD_EXECUTION */
/*******************************************************************************
*
* FUNCTION: acpi_ds_init_object_from_op
@@ -404,9 +401,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
/* Truncate value if we are executing from a 32-bit ACPI table */
#ifndef ACPI_NO_METHOD_EXECUTION
(void)acpi_ex_truncate_for32bit_table(obj_desc);
#endif
break;
case AML_REVISION_OP:
@@ -428,7 +423,6 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
obj_desc->integer.value = op->common.value.integer;
#ifndef ACPI_NO_METHOD_EXECUTION
if (acpi_ex_truncate_for32bit_table(obj_desc)) {
/* Warn if we found a 64-bit constant in a 32-bit table */
@@ -439,7 +433,6 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
value.integer),
(u32)obj_desc->integer.value));
}
#endif
break;
default:
@@ -477,7 +470,6 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
((u32)opcode) - AML_FIRST_LOCAL_OP;
obj_desc->reference.class = ACPI_REFCLASS_LOCAL;
#ifndef ACPI_NO_METHOD_EXECUTION
status =
acpi_ds_method_data_get_node(ACPI_REFCLASS_LOCAL,
obj_desc->reference.
@@ -487,7 +479,6 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
acpi_namespace_node,
&obj_desc->reference.
object));
#endif
break;
case AML_TYPE_METHOD_ARGUMENT:
@@ -498,7 +489,6 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
((u32)opcode) - AML_FIRST_ARG_OP;
obj_desc->reference.class = ACPI_REFCLASS_ARG;
#ifndef ACPI_NO_METHOD_EXECUTION
status = acpi_ds_method_data_get_node(ACPI_REFCLASS_ARG,
obj_desc->
reference.value,
@@ -509,7 +499,6 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
&obj_desc->
reference.
object));
#endif
break;
default: /* Object name or Debug object */

26
drivers/acpi/acpica/dspkginit.c
View File

@@ -152,6 +152,32 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
*/
for (i = 0; arg && (i < element_count); i++) {
if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
if (!arg->common.node) {
/*
* This is the case where an expression has returned a value.
* The use of expressions (term_args) within individual
* package elements is not supported by the AML interpreter,
* even though the ASL grammar supports it. Example:
*
* Name (INT1, 0x1234)
*
* Name (PKG3, Package () {
* Add (INT1, 0xAAAA0000)
* })
*
* 1) No known AML interpreter supports this type of construct
* 2) This fixes a fault if the construct is encountered
*/
ACPI_EXCEPTION((AE_INFO, AE_SUPPORT,
"Expressions within package elements are not supported"));
/* Cleanup the return object, it is not needed */
acpi_ut_remove_reference(walk_state->results->
results.obj_desc[0]);
return_ACPI_STATUS(AE_SUPPORT);
}
if (arg->common.node->type == ACPI_TYPE_METHOD) {
/*
* A method reference "looks" to the parser to be a method

2
drivers/acpi/acpica/dsutils.c
View File

@@ -57,7 +57,6 @@ void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state)
}
}
#ifndef ACPI_NO_METHOD_EXECUTION
/*******************************************************************************
*
* FUNCTION: acpi_ds_do_implicit_return
@@ -401,7 +400,6 @@ void acpi_ds_clear_operands(struct acpi_walk_state *walk_state)
walk_state->num_operands = 0;
return_VOID;
}
#endif
/*******************************************************************************
*

6
drivers/acpi/acpica/dswload.c
View File

@@ -73,12 +73,10 @@ acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number)
/* Execution pass */
#ifndef ACPI_NO_METHOD_EXECUTION
walk_state->parse_flags |= ACPI_PARSE_EXECUTE |
ACPI_PARSE_DELETE_TREE;
walk_state->descending_callback = acpi_ds_exec_begin_op;
walk_state->ascending_callback = acpi_ds_exec_end_op;
#endif
break;
default:
@@ -364,7 +362,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state *walk_state,
/* Initialize the op */
#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
#ifdef ACPI_CONSTANT_EVAL_ONLY
op->named.path = path;
#endif
@@ -422,7 +420,6 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
object_type = walk_state->op_info->object_type;
#ifndef ACPI_NO_METHOD_EXECUTION
if (walk_state->op_info->flags & AML_FIELD) {
/*
* If we are executing a method, do not create any namespace objects
@@ -466,7 +463,6 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
}
}
}
#endif
if (op->common.aml_opcode == AML_NAME_OP) {

15
drivers/acpi/acpica/dswload2.c
View File

@@ -296,6 +296,14 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
}
#endif
/*
* For name creation opcodes, the full namepath prefix must
* exist, except for the final (new) nameseg.
*/
if (walk_state->op_info->flags & AML_NAMED) {
flags |= ACPI_NS_PREFIX_MUST_EXIST;
}
/* Add new entry or lookup existing entry */
status =
@@ -363,10 +371,8 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
struct acpi_namespace_node *node;
union acpi_parse_object *arg;
struct acpi_namespace_node *new_node;
#ifndef ACPI_NO_METHOD_EXECUTION
u32 i;
u8 region_space;
#endif
ACPI_FUNCTION_TRACE(ds_load2_end_op);
@@ -453,7 +459,6 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
arg = op->common.value.arg;
switch (walk_state->op_info->type) {
#ifndef ACPI_NO_METHOD_EXECUTION
case AML_TYPE_CREATE_FIELD:
/*
@@ -550,12 +555,10 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
}
break;
#endif /* ACPI_NO_METHOD_EXECUTION */
case AML_TYPE_NAMED_COMPLEX:
switch (op->common.aml_opcode) {
#ifndef ACPI_NO_METHOD_EXECUTION
case AML_REGION_OP:
case AML_DATA_REGION_OP:
@@ -643,8 +646,6 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
}
break;
#endif /* ACPI_NO_METHOD_EXECUTION */
default:
/* All NAMED_COMPLEX opcodes must be handled above */

2
drivers/acpi/acpica/dswstate.c
View File

@@ -530,7 +530,7 @@ struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id,
/* Init the method args/local */
#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
#ifndef ACPI_CONSTANT_EVAL_ONLY
acpi_ds_method_data_init(walk_state);
#endif

8
drivers/acpi/acpica/evhandler.c
View File

@@ -364,25 +364,25 @@ acpi_ev_install_space_handler(struct acpi_namespace_node *node,
handler = acpi_ex_system_io_space_handler;
setup = acpi_ev_io_space_region_setup;
break;
#ifdef ACPI_PCI_CONFIGURED
case ACPI_ADR_SPACE_PCI_CONFIG:
handler = acpi_ex_pci_config_space_handler;
setup = acpi_ev_pci_config_region_setup;
break;
#endif
case ACPI_ADR_SPACE_CMOS:
handler = acpi_ex_cmos_space_handler;
setup = acpi_ev_cmos_region_setup;
break;
#ifdef ACPI_PCI_CONFIGURED
case ACPI_ADR_SPACE_PCI_BAR_TARGET:
handler = acpi_ex_pci_bar_space_handler;
setup = acpi_ev_pci_bar_region_setup;
break;
#endif
case ACPI_ADR_SPACE_DATA_TABLE:
handler = acpi_ex_data_table_space_handler;

49
drivers/acpi/acpica/exconvrt.c
View File

@@ -323,7 +323,7 @@ acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 data_width)
/* hex_length: 2 ascii hex chars per data byte */
hex_length = ACPI_MUL_2(data_width);
hex_length = (data_width * 2);
for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) {
/* Get one hex digit, most significant digits first */
@@ -364,7 +364,8 @@ acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 data_width)
*
* RETURN: Status
*
* DESCRIPTION: Convert an ACPI Object to a string
* DESCRIPTION: Convert an ACPI Object to a string. Supports both implicit
* and explicit conversions and related rules.
*
******************************************************************************/
@@ -393,9 +394,11 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
switch (type) {
case ACPI_EXPLICIT_CONVERT_DECIMAL:
/* Make room for maximum decimal number */
/*
* From to_decimal_string, integer source.
*
* Make room for the maximum decimal number size
*/
string_length = ACPI_MAX_DECIMAL_DIGITS;
base = 10;
break;
@@ -440,8 +443,10 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
switch (type) {
case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by to_decimal_string */
/*
* From ACPI: "If Data is a buffer, it is converted to a string of
* decimal values separated by commas."
* Explicit conversion from the to_decimal_string ASL operator.
*
* From ACPI: "If the input is a buffer, it is converted to a
* a string of decimal values separated by commas."
*/
base = 10;
@@ -462,20 +467,29 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
case ACPI_IMPLICIT_CONVERT_HEX:
/*
* Implicit buffer-to-string conversion
*
* From the ACPI spec:
*"The entire contents of the buffer are converted to a string of
* "The entire contents of the buffer are converted to a string of
* two-character hexadecimal numbers, each separated by a space."
*
* Each hex number is prefixed with 0x (11/2018)
*/
separator = ' ';
string_length = (obj_desc->buffer.length * 3);
string_length = (obj_desc->buffer.length * 5);
break;
case ACPI_EXPLICIT_CONVERT_HEX: /* Used by to_hex_string */
case ACPI_EXPLICIT_CONVERT_HEX:
/*
* Explicit conversion from the to_hex_string ASL operator.
*
* From ACPI: "If Data is a buffer, it is converted to a string of
* hexadecimal values separated by commas."
*
* Each hex number is prefixed with 0x (11/2018)
*/
string_length = (obj_desc->buffer.length * 3);
separator = ',';
string_length = (obj_desc->buffer.length * 5);
break;
default:
@@ -504,10 +518,21 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
* (separated by commas or spaces)
*/
for (i = 0; i < obj_desc->buffer.length; i++) {
if (base == 16) {
/* Emit 0x prefix for explict/implicit hex conversion */
*new_buf++ = '0';
*new_buf++ = 'x';
}
new_buf += acpi_ex_convert_to_ascii((u64) obj_desc->
buffer.pointer[i],
base, new_buf, 1);
*new_buf++ = separator; /* each separated by a comma or space */
/* Each digit is separated by either a comma or space */
*new_buf++ = separator;
}
/*

2
drivers/acpi/acpica/excreate.c
View File

@@ -15,7 +15,6 @@
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("excreate")
#ifndef ACPI_NO_METHOD_EXECUTION
/*******************************************************************************
*
* FUNCTION: acpi_ex_create_alias
@@ -390,7 +389,6 @@ acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state)
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
#endif
/*******************************************************************************
*

6
drivers/acpi/acpica/exoparg2.c
View File

@@ -287,9 +287,9 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
* NOTE: A length of zero is ok, and will create a zero-length, null
* terminated string.
*/
while ((length < operand[0]->buffer.length) &&
(length < operand[1]->integer.value) &&
(operand[0]->buffer.pointer[length])) {
while ((length < operand[0]->buffer.length) && /* Length of input buffer */
(length < operand[1]->integer.value) && /* Length operand */
(operand[0]->buffer.pointer[length])) { /* Null terminator */
length++;
}

4
drivers/acpi/acpica/exregion.c
View File

@@ -311,6 +311,7 @@ acpi_ex_system_io_space_handler(u32 function,
return_ACPI_STATUS(status);
}
#ifdef ACPI_PCI_CONFIGURED
/*******************************************************************************
*
* FUNCTION: acpi_ex_pci_config_space_handler
@@ -387,6 +388,7 @@ acpi_ex_pci_config_space_handler(u32 function,
return_ACPI_STATUS(status);
}
#endif
/*******************************************************************************
*
@@ -420,6 +422,7 @@ acpi_ex_cmos_space_handler(u32 function,
return_ACPI_STATUS(status);
}
#ifdef ACPI_PCI_CONFIGURED
/*******************************************************************************
*
* FUNCTION: acpi_ex_pci_bar_space_handler
@@ -451,6 +454,7 @@ acpi_ex_pci_bar_space_handler(u32 function,
return_ACPI_STATUS(status);
}
#endif
/*******************************************************************************
*

6
drivers/acpi/acpica/exserial.c
View File

@@ -244,6 +244,7 @@ acpi_ex_write_serial_bus(union acpi_operand_object *source_desc,
{
acpi_status status;
u32 buffer_length;
u32 data_length;
void *buffer;
union acpi_operand_object *buffer_desc;
u32 function;
@@ -324,8 +325,9 @@ acpi_ex_write_serial_bus(union acpi_operand_object *source_desc,
/* Copy the input buffer data to the transfer buffer */
buffer = buffer_desc->buffer.pointer;
memcpy(buffer, source_desc->buffer.pointer,
min(buffer_length, source_desc->buffer.length));
data_length = (buffer_length < source_desc->buffer.length ?
buffer_length : source_desc->buffer.length);
memcpy(buffer, source_desc->buffer.pointer, data_length);
/* Lock entire transaction if requested */

3
drivers/acpi/acpica/exutils.c
View File

@@ -34,7 +34,6 @@ ACPI_MODULE_NAME("exutils")
/* Local prototypes */
static u32 acpi_ex_digits_needed(u64 value, u32 base);
#ifndef ACPI_NO_METHOD_EXECUTION
/*******************************************************************************
*
* FUNCTION: acpi_ex_enter_interpreter
@@ -409,5 +408,3 @@ u8 acpi_is_valid_space_id(u8 space_id)
return (TRUE);
}
#endif

23
drivers/acpi/acpica/nsaccess.c
View File

@@ -267,6 +267,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
acpi_object_type this_search_type;
u32 search_parent_flag = ACPI_NS_SEARCH_PARENT;
u32 local_flags;
acpi_interpreter_mode local_interpreter_mode;
ACPI_FUNCTION_TRACE(ns_lookup);
@@ -506,6 +507,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
*/
this_search_type = ACPI_TYPE_ANY;
current_node = this_node;
while (num_segments && current_node) {
num_segments--;
if (!num_segments) {
@@ -536,6 +538,16 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
}
}
/* Handle opcodes that create a new name_seg via a full name_path */
local_interpreter_mode = interpreter_mode;
if ((flags & ACPI_NS_PREFIX_MUST_EXIST) && (num_segments > 0)) {
/* Every element of the path must exist (except for the final name_seg) */
local_interpreter_mode = ACPI_IMODE_EXECUTE;
}
/* Extract one ACPI name from the front of the pathname */
ACPI_MOVE_32_TO_32(&simple_name, path);
@@ -544,12 +556,19 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
status =
acpi_ns_search_and_enter(simple_name, walk_state,
current_node, interpreter_mode,
current_node,
local_interpreter_mode,
this_search_type, local_flags,
&this_node);
if (ACPI_FAILURE(status)) {
if (status == AE_NOT_FOUND) {
#if !defined ACPI_ASL_COMPILER /* Note: iASL reports this error by itself, not needed here */
if (flags & ACPI_NS_PREFIX_MUST_EXIST) {
acpi_os_printf(ACPI_MSG_BIOS_ERROR
"Object does not exist: %4.4s\n",
&simple_name);
}
#endif
/* Name not found in ACPI namespace */
ACPI_DEBUG_PRINT((ACPI_DB_NAMES,

13
drivers/acpi/acpica/nseval.c
View File

@@ -104,6 +104,13 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
return_ACPI_STATUS(AE_NO_MEMORY);
}
/* Optional object evaluation log */
ACPI_DEBUG_PRINT_RAW((ACPI_DB_EVALUATION,
"%-26s: %s (%s)\n", " Enter evaluation",
&info->full_pathname[1],
acpi_ut_get_type_name(info->node->type)));
/* Count the number of arguments being passed in */
info->param_count = 0;
@@ -289,6 +296,12 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
info->relative_pathname));
cleanup:
/* Optional object evaluation log */
ACPI_DEBUG_PRINT_RAW((ACPI_DB_EVALUATION,
"%-26s: %s\n", " Exit evaluation",
&info->full_pathname[1]));
/*
* Namespace was unlocked by the handling acpi_ns* function, so we
* just free the pathname and return

2
drivers/acpi/acpica/nsload.c
View File

@@ -24,7 +24,6 @@ acpi_status acpi_ns_unload_namespace(acpi_handle handle);
static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle);
#endif
#ifndef ACPI_NO_METHOD_EXECUTION
/*******************************************************************************
*
* FUNCTION: acpi_ns_load_table
@@ -297,4 +296,3 @@ acpi_status acpi_ns_unload_namespace(acpi_handle handle)
return_ACPI_STATUS(status);
}
#endif
#endif

12
drivers/acpi/acpica/nsparse.c
View File

@@ -107,8 +107,20 @@ acpi_ns_execute_table(u32 table_index, struct acpi_namespace_node *start_node)
goto cleanup;
}
/* Optional object evaluation log */
ACPI_DEBUG_PRINT_RAW((ACPI_DB_EVALUATION,
"%-26s: (Definition Block level)\n",
"Module-level evaluation"));
status = acpi_ps_execute_table(info);
/* Optional object evaluation log */
ACPI_DEBUG_PRINT_RAW((ACPI_DB_EVALUATION,
"%-26s: (Definition Block level)\n",
"Module-level complete"));
cleanup:
if (info) {
ACPI_FREE(info->full_pathname);

10
drivers/acpi/acpica/psloop.c
View File

@@ -428,7 +428,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
parser_state = &walk_state->parser_state;
walk_state->arg_types = 0;
#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
#ifndef ACPI_CONSTANT_EVAL_ONLY
if (walk_state->walk_type & ACPI_WALK_METHOD_RESTART) {
@@ -508,7 +508,8 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
*/
if ((walk_state->
parse_flags & ACPI_PARSE_MODULE_LEVEL)
&& status == AE_ALREADY_EXISTS) {
&& ((status == AE_ALREADY_EXISTS)
|| (status == AE_NOT_FOUND))) {
status = AE_OK;
}
if (status == AE_CTRL_PARSE_CONTINUE) {
@@ -537,10 +538,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
* the scope op because the parse failure indicates that
* the device may not exist.
*/
ACPI_ERROR((AE_INFO,
"Skip parsing opcode %s",
acpi_ps_get_opcode_name
(walk_state->opcode)));
ACPI_INFO(("Skipping parse of AML opcode: %s (0x%4.4X)", acpi_ps_get_opcode_name(walk_state->opcode), walk_state->opcode));
/*
* Determine the opcode length before skipping the opcode.

3
drivers/acpi/acpica/psobject.c
View File

@@ -600,8 +600,7 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state,
* because there could be correct AML beyond the parts that caused
* the runtime error.
*/
ACPI_ERROR((AE_INFO,
"Ignore error and continue table load"));
ACPI_INFO(("Ignoring error and continuing table load"));
return_ACPI_STATUS(AE_OK);
}
return_ACPI_STATUS(status);

15
drivers/acpi/acpica/psparse.c
View File

@@ -479,6 +479,21 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
"Completed one call to walk loop, %s State=%p\n",
acpi_format_exception(status), walk_state));
if (walk_state->method_pathname && walk_state->method_is_nested) {
/* Optional object evaluation log */
ACPI_DEBUG_PRINT_RAW((ACPI_DB_EVALUATION,
"%-26s: %*s%s\n",
" Exit nested method",
(walk_state->
method_nesting_depth + 1) * 3,
" ",
&walk_state->method_pathname[1]));
ACPI_FREE(walk_state->method_pathname);
walk_state->method_is_nested = FALSE;
}
if (status == AE_CTRL_TRANSFER) {
/*
* A method call was detected.

6
drivers/acpi/acpica/psxface.c
View File

@@ -147,6 +147,9 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
goto cleanup;
}
walk_state->method_pathname = info->full_pathname;
walk_state->method_is_nested = FALSE;
if (info->obj_desc->method.info_flags & ACPI_METHOD_MODULE_LEVEL) {
walk_state->parse_flags |= ACPI_PARSE_MODULE_LEVEL;
}
@@ -267,6 +270,9 @@ acpi_status acpi_ps_execute_table(struct acpi_evaluate_info *info)
goto cleanup;
}
walk_state->method_pathname = info->full_pathname;
walk_state->method_is_nested = FALSE;
if (info->obj_desc->method.info_flags & ACPI_METHOD_MODULE_LEVEL) {
walk_state->parse_flags |= ACPI_PARSE_MODULE_LEVEL;
}

3
drivers/acpi/acpica/utglobal.c
View File

@@ -83,10 +83,7 @@ const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
{"_REV", ACPI_TYPE_INTEGER, ACPI_CAST_PTR(char, 2)},
{"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
{"_GL_", ACPI_TYPE_MUTEX, ACPI_CAST_PTR(char, 1)},
#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
{"_OSI", ACPI_TYPE_METHOD, ACPI_CAST_PTR(char, 1)},
#endif
/* Table terminator */

3
drivers/acpi/acpica/utmisc.c
View File

@@ -62,7 +62,8 @@ u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) ||
ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) ||
ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT) ||
ACPI_COMPARE_NAME(table->signature, ACPI_SIG_OSDT)) {
ACPI_COMPARE_NAME(table->signature, ACPI_SIG_OSDT) ||
ACPI_IS_OEM_SIG(table->signature)) {
return (TRUE);
}

2
drivers/acpi/acpica/utosi.c
View File

@@ -70,6 +70,8 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = {
{"Windows 2016", NULL, 0, ACPI_OSI_WIN_10_RS1}, /* Windows 10 version 1607 - Added 12/2017 */
{"Windows 2017", NULL, 0, ACPI_OSI_WIN_10_RS2}, /* Windows 10 version 1703 - Added 12/2017 */
{"Windows 2017.2", NULL, 0, ACPI_OSI_WIN_10_RS3}, /* Windows 10 version 1709 - Added 02/2018 */
{"Windows 2018", NULL, 0, ACPI_OSI_WIN_10_RS4}, /* Windows 10 version 1803 - Added 11/2018 */
{"Windows 2018.2", NULL, 0, ACPI_OSI_WIN_10_RS5}, /* Windows 10 version 1809 - Added 11/2018 */
/* Feature Group Strings */

12
drivers/acpi/apei/einj.c
View File

@@ -607,17 +607,7 @@ static int available_error_type_show(struct seq_file *m, void *v)
return 0;
}
static int available_error_type_open(struct inode *inode, struct file *file)
{
return single_open(file, available_error_type_show, NULL);
}
static const struct file_operations available_error_type_fops = {
.open = available_error_type_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(available_error_type);
static int error_type_get(void *data, u64 *val)
{

2
drivers/acpi/apei/ghes.c
View File

@@ -691,6 +691,8 @@ static void __ghes_panic(struct ghes *ghes)
{
__ghes_print_estatus(KERN_EMERG, ghes->generic, ghes->estatus);
ghes_clear_estatus(ghes);
/* reboot to log the error! */
if (!panic_timeout)
panic_timeout = ghes_panic_timeout;

20
drivers/acpi/arm64/iort.c
View File

@@ -1435,8 +1435,14 @@ dev_put:
return ret;
}
static bool __init iort_enable_acs(struct acpi_iort_node *iort_node)
#ifdef CONFIG_PCI
static void __init iort_enable_acs(struct acpi_iort_node *iort_node)
{
static bool acs_enabled __initdata;
if (acs_enabled)
return;
if (iort_node->type == ACPI_IORT_NODE_PCI_ROOT_COMPLEX) {
struct acpi_iort_node *parent;
struct acpi_iort_id_mapping *map;
@@ -1458,13 +1464,15 @@ static bool __init iort_enable_acs(struct acpi_iort_node *iort_node)
if ((parent->type == ACPI_IORT_NODE_SMMU) ||
(parent->type == ACPI_IORT_NODE_SMMU_V3)) {
pci_request_acs();
return true;
acs_enabled = true;
return;
}
}
}
return false;
}
#else
static inline void iort_enable_acs(struct acpi_iort_node *iort_node) { }
#endif
static void __init iort_init_platform_devices(void)
{
@@ -1472,7 +1480,6 @@ static void __init iort_init_platform_devices(void)
struct acpi_table_iort *iort;
struct fwnode_handle *fwnode;
int i, ret;
bool acs_enabled = false;
const struct iort_dev_config *ops;
/*
@@ -1493,8 +1500,7 @@ static void __init iort_init_platform_devices(void)
return;
}
if (!acs_enabled)
acs_enabled = iort_enable_acs(iort_node);
iort_enable_acs(iort_node);
ops = iort_get_dev_cfg(iort_node);
if (ops) {

5
drivers/acpi/internal.h
View File

@@ -25,8 +25,13 @@ int acpi_osi_init(void);
acpi_status acpi_os_initialize1(void);
void init_acpi_device_notify(void);
int acpi_scan_init(void);
#ifdef CONFIG_PCI
void acpi_pci_root_init(void);
void acpi_pci_link_init(void);
#else
static inline void acpi_pci_root_init(void) {}
static inline void acpi_pci_link_init(void) {}
#endif
void acpi_processor_init(void);
void acpi_platform_init(void);
void acpi_pnp_init(void);

7
drivers/acpi/osi.c
View File

@@ -74,6 +74,13 @@ osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
* a BIOS workaround.
*/
{"Linux-Lenovo-NV-HDMI-Audio", true},
/*
* Linux-HPI-Hybrid-Graphics is used by BIOS to enable dGPU to
* output video directly to external monitors on HP Inc. mobile
* workstations as Nvidia and AMD VGA drivers provide limited
* hybrid graphics supports.
*/
{"Linux-HPI-Hybrid-Graphics", true},
};
static u32 acpi_osi_handler(acpi_string interface, u32 supported)

2
drivers/acpi/osl.c
View File

@@ -769,6 +769,7 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u64 value, u32 width)
return AE_OK;
}
#ifdef CONFIG_PCI
acpi_status
acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
u64 *value, u32 width)
@@ -827,6 +828,7 @@ acpi_os_write_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
return (result ? AE_ERROR : AE_OK);
}
#endif
static void acpi_os_execute_deferred(struct work_struct *work)
{

40
drivers/acpi/reboot.c
View File

@@ -4,11 +4,35 @@
#include <linux/acpi.h>
#include <acpi/reboot.h>
#ifdef CONFIG_PCI
static void acpi_pci_reboot(struct acpi_generic_address *rr, u8 reset_value)
{
unsigned int devfn;
struct pci_bus *bus0;
/* The reset register can only live on bus 0. */
bus0 = pci_find_bus(0, 0);
if (!bus0)
return;
/* Form PCI device/function pair. */
devfn = PCI_DEVFN((rr->address >> 32) & 0xffff,
(rr->address >> 16) & 0xffff);
pr_debug("Resetting with ACPI PCI RESET_REG.\n");
/* Write the value that resets us. */
pci_bus_write_config_byte(bus0, devfn,
(rr->address & 0xffff), reset_value);
}
#else
static inline void acpi_pci_reboot(struct acpi_generic_address *rr,
u8 reset_value)
{
pr_warn_once("PCI configuration space access is not supported\n");
}
#endif
void acpi_reboot(void)
{
struct acpi_generic_address *rr;
struct pci_bus *bus0;
unsigned int devfn;
u8 reset_value;
if (acpi_disabled)
@@ -33,17 +57,7 @@ void acpi_reboot(void)
* on a device on bus 0. */
switch (rr->space_id) {
case ACPI_ADR_SPACE_PCI_CONFIG:
/* The reset register can only live on bus 0. */
bus0 = pci_find_bus(0, 0);
if (!bus0)
return;
/* Form PCI device/function pair. */
devfn = PCI_DEVFN((rr->address >> 32) & 0xffff,
(rr->address >> 16) & 0xffff);
printk(KERN_DEBUG "Resetting with ACPI PCI RESET_REG.\n");
/* Write the value that resets us. */
pci_bus_write_config_byte(bus0, devfn,
(rr->address & 0xffff), reset_value);
acpi_pci_reboot(rr, reset_value);
break;
case ACPI_ADR_SPACE_SYSTEM_MEMORY:

11
drivers/acpi/spcr.c
View File

@@ -148,6 +148,13 @@ int __init acpi_parse_spcr(bool enable_earlycon, bool enable_console)
}
switch (table->baud_rate) {
case 0:
/*
* SPCR 1.04 defines 0 as a preconfigured state of UART.
* Assume firmware or bootloader configures console correctly.
*/
baud_rate = 0;
break;
case 3:
baud_rate = 9600;
break;
@@ -196,6 +203,10 @@ int __init acpi_parse_spcr(bool enable_earlycon, bool enable_console)
* UART so don't attempt to change to the baud rate state
* in the table because driver cannot calculate the dividers
*/
baud_rate = 0;
}
if (!baud_rate) {
snprintf(opts, sizeof(opts), "%s,%s,0x%llx", uart, iotype,
table->serial_port.address);
} else {

12
drivers/acpi/tables.c
View File

@@ -712,6 +712,11 @@ acpi_os_physical_table_override(struct acpi_table_header *existing_table,
table_length);
}
#ifdef CONFIG_ACPI_CUSTOM_DSDT
static void *amlcode __attribute__ ((weakref("AmlCode")));
static void *dsdt_amlcode __attribute__ ((weakref("dsdt_aml_code")));
#endif
acpi_status
acpi_os_table_override(struct acpi_table_header *existing_table,
struct acpi_table_header **new_table)
@@ -722,8 +727,11 @@ acpi_os_table_override(struct acpi_table_header *existing_table,
*new_table = NULL;
#ifdef CONFIG_ACPI_CUSTOM_DSDT
if (strncmp(existing_table->signature, "DSDT", 4) == 0)
*new_table = (struct acpi_table_header *)AmlCode;
if (!strncmp(existing_table->signature, "DSDT", 4)) {
*new_table = (struct acpi_table_header *)&amlcode;
if (!(*new_table))
*new_table = (struct acpi_table_header *)&dsdt_amlcode;
}
#endif
if (*new_table != NULL)
acpi_table_taint(existing_table);