#ifndef __ACPI_ACPIGEN_H
#define __ACPI_ACPIGEN_H
+#include <acpi/acpi_table.h>
#include <linux/types.h>
+struct acpi_cstate;
struct acpi_ctx;
+struct acpi_gen_regaddr;
+struct acpi_gpio;
/* Top 4 bits of the value used to indicate a three-byte length value */
#define ACPI_PKG_LEN_3_BYTES 0x80
+#define ACPI_METHOD_NARGS_MASK 0x7
+#define ACPI_METHOD_SERIALIZED_MASK BIT(3)
+
+#define ACPI_END_TAG 0x79
+
/* ACPI Op/Prefix codes */
enum {
ZERO_OP = 0x00,
ONE_OP = 0x01,
+ NAME_OP = 0x08,
BYTE_PREFIX = 0x0a,
WORD_PREFIX = 0x0b,
DWORD_PREFIX = 0x0c,
+ STRING_PREFIX = 0x0d,
QWORD_PREFIX = 0x0e,
+ SCOPE_OP = 0x10,
+ BUFFER_OP = 0x11,
PACKAGE_OP = 0x12,
+ METHOD_OP = 0x14,
+ SLEEP_OP = 0x22,
+ DUAL_NAME_PREFIX = 0x2e,
+ MULTI_NAME_PREFIX = 0x2f,
+ DEBUG_OP = 0x31,
+ EXT_OP_PREFIX = 0x5b,
+ ROOT_PREFIX = 0x5c,
+ LOCAL0_OP = 0x60,
+ LOCAL1_OP = 0x61,
+ LOCAL2_OP = 0x62,
+ LOCAL3_OP = 0x63,
+ LOCAL4_OP = 0x64,
+ LOCAL5_OP = 0x65,
+ LOCAL6_OP = 0x66,
+ LOCAL7_OP = 0x67,
+ ARG0_OP = 0x68,
+ ARG1_OP = 0x69,
+ ARG2_OP = 0x6a,
+ ARG3_OP = 0x6b,
+ ARG4_OP = 0x6c,
+ ARG5_OP = 0x6d,
+ ARG6_OP = 0x6e,
+ STORE_OP = 0x70,
+ AND_OP = 0x7b,
+ OR_OP = 0x7d,
+ NOT_OP = 0x80,
+ DEVICE_OP = 0x82,
+ PROCESSOR_OP = 0x83,
+ POWER_RES_OP = 0x84,
+ NOTIFY_OP = 0x86,
+ LEQUAL_OP = 0x93,
+ TO_BUFFER_OP = 0x96,
+ TO_INTEGER_OP = 0x99,
+ IF_OP = 0xa0,
+ ELSE_OP = 0xa1,
+ RETURN_OP = 0xa4,
+};
+
+/**
+ * enum psd_coord - Coordination types for P-states
+ *
+ * The type of coordination that exists (hardware) or is required (software) as
+ * a result of the underlying hardware dependency
+ */
+enum psd_coord {
+ SW_ALL = 0xfc,
+ SW_ANY = 0xfd,
+ HW_ALL = 0xfe
+};
+
+/**
+ * enum csd_coord - Coordination types for C-states
+ *
+ * The type of coordination that exists (hardware) or is required (software) as
+ * a result of the underlying hardware dependency
+ */
+enum csd_coord {
+ CSD_HW_ALL = 0xfe,
+};
+
+/**
+ * struct acpi_cstate - Information about a C-State
+ *
+ * @ctype: C State type (1=C1, 2=C2, 3=C3)
+ * @latency: Worst-case latency to enter and exit the C State (in uS)
+ * @power: Average power consumption of the processor when in this C-State (mW)
+ * @resource: Register to read to place the processor in this state
+ */
+struct acpi_cstate {
+ uint ctype;
+ uint latency;
+ uint power;
+ struct acpi_gen_regaddr resource;
+};
+
+/**
+ * struct acpi_tstate - Information about a Throttling Supported State
+ *
+ * See ACPI v6.3 section 8.4.5.2: _TSS (Throttling Supported States)
+ *
+ * @percent: Percent of the core CPU operating frequency that will be
+ * available when this throttling state is invoked
+ * @power: Throttling state’s maximum power dissipation (mw)
+ * @latency: Worst-case latency (uS) that the CPU is unavailable during a
+ * transition from any throttling state to this throttling state
+ * @control: Value to be written to the Processor Control Register
+ * (THROTTLE_CTRL) to initiate a transition to this throttling state
+ * @status: Value in THROTTLE_STATUS when in this state
+ */
+struct acpi_tstate {
+ uint percent;
+ uint power;
+ uint latency;
+ uint control;
+ uint status;
};
/**
* acpigen_get_current() - Get the current ACPI code output pointer
*
* @ctx: ACPI context pointer
- * @return output pointer
+ * Return: output pointer
*/
u8 *acpigen_get_current(struct acpi_ctx *ctx);
char *acpigen_write_package(struct acpi_ctx *ctx, int nr_el);
/**
+ * acpigen_write_byte() - Write a byte
+ *
+ * @ctx: ACPI context pointer
+ * @data: Value to write
+ */
+void acpigen_write_byte(struct acpi_ctx *ctx, unsigned int data);
+
+/**
+ * acpigen_write_word() - Write a word
+ *
+ * @ctx: ACPI context pointer
+ * @data: Value to write
+ */
+void acpigen_write_word(struct acpi_ctx *ctx, unsigned int data);
+
+/**
+ * acpigen_write_dword() - Write a dword
+ *
+ * @ctx: ACPI context pointer
+ * @data: Value to write
+ */
+void acpigen_write_dword(struct acpi_ctx *ctx, unsigned int data);
+
+/**
+ * acpigen_write_qword() - Write a qword
+ *
+ * @ctx: ACPI context pointer
+ * @data: Value to write
+ */
+void acpigen_write_qword(struct acpi_ctx *ctx, u64 data);
+
+/**
+ * acpigen_write_zero() - Write zero
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_zero(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_one() - Write one
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_one(struct acpi_ctx *ctx);
+
+/**
* acpigen_write_integer() - Write an integer
*
* This writes an operation (BYTE_OP, WORD_OP, DWORD_OP, QWORD_OP depending on
*/
void acpigen_write_integer(struct acpi_ctx *ctx, u64 data);
+/**
+ * acpigen_write_name_zero() - Write a named zero value
+ *
+ * @ctx: ACPI context pointer
+ * @name: Name of the value
+ */
+void acpigen_write_name_zero(struct acpi_ctx *ctx, const char *name);
+
+/**
+ * acpigen_write_name_one() - Write a named one value
+ *
+ * @ctx: ACPI context pointer
+ * @name: Name of the value
+ */
+void acpigen_write_name_one(struct acpi_ctx *ctx, const char *name);
+
+/**
+ * acpigen_write_name_byte() - Write a named byte value
+ *
+ * @ctx: ACPI context pointer
+ * @name: Name of the value
+ * @val: Value to write
+ */
+void acpigen_write_name_byte(struct acpi_ctx *ctx, const char *name, uint val);
+
+/**
+ * acpigen_write_name_word() - Write a named word value
+ *
+ * @ctx: ACPI context pointer
+ * @name: Name of the value
+ * @val: Value to write
+ */
+void acpigen_write_name_word(struct acpi_ctx *ctx, const char *name, uint val);
+
+/**
+ * acpigen_write_name_dword() - Write a named dword value
+ *
+ * @ctx: ACPI context pointer
+ * @name: Name of the value
+ * @val: Value to write
+ */
+void acpigen_write_name_dword(struct acpi_ctx *ctx, const char *name, uint val);
+
+/**
+ * acpigen_write_name_qword() - Write a named qword value
+ *
+ * @ctx: ACPI context pointer
+ * @name: Name of the value
+ * @val: Value to write
+ */
+void acpigen_write_name_qword(struct acpi_ctx *ctx, const char *name, u64 val);
+
+/**
+ * acpigen_write_name_integer() - Write a named integer value
+ *
+ * @ctx: ACPI context pointer
+ * @name: Name of the value
+ * @val: Value to write
+ */
+void acpigen_write_name_integer(struct acpi_ctx *ctx, const char *name,
+ u64 val);
+
+/**
+ * acpigen_write_name_string() - Write a named string value
+ *
+ * @ctx: ACPI context pointer
+ * @name: Name of the value
+ * @string: String to write
+ */
+void acpigen_write_name_string(struct acpi_ctx *ctx, const char *name,
+ const char *string);
+
+/**
+ * acpigen_write_string() - Write a string
+ *
+ * This writes a STRING_PREFIX followed by a null-terminated string
+ *
+ * @ctx: ACPI context pointer
+ * @str: String to write
+ */
+void acpigen_write_string(struct acpi_ctx *ctx, const char *str);
+
+/**
+ * acpigen_emit_namestring() - Emit an ACPI name
+ *
+ * This writes out an ACPI name or path in the required special format. It does
+ * not add the NAME_OP prefix.
+ *
+ * @ctx: ACPI context pointer
+ * @namepath: Name / path to emit
+ */
+void acpigen_emit_namestring(struct acpi_ctx *ctx, const char *namepath);
+
+/**
+ * acpigen_write_name() - Write out an ACPI name
+ *
+ * This writes out an ACPI name or path in the required special format with a
+ * NAME_OP prefix.
+ *
+ * @ctx: ACPI context pointer
+ * @namepath: Name / path to emit
+ */
+void acpigen_write_name(struct acpi_ctx *ctx, const char *namepath);
+
+/**
+ * acpigen_write_scope() - Write a scope
+ *
+ * @ctx: ACPI context pointer
+ * @scope: Scope to write (e.g. "\\_SB.ABCD")
+ */
+void acpigen_write_scope(struct acpi_ctx *ctx, const char *scope);
+
+/**
+ * acpigen_write_uuid() - Write a UUID
+ *
+ * This writes out a UUID in the format used by ACPI, with a BUFFER_OP prefix.
+ *
+ * @ctx: ACPI context pointer
+ * @uuid: UUID to write in the form aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
+ * Return: 0 if OK, -EINVAL if the format is incorrect
+ */
+int acpigen_write_uuid(struct acpi_ctx *ctx, const char *uuid);
+
+/**
+ * acpigen_emit_ext_op() - Emit an extended op with the EXT_OP_PREFIX prefix
+ *
+ * @ctx: ACPI context pointer
+ * @op: Operation code (e.g. SLEEP_OP)
+ */
+void acpigen_emit_ext_op(struct acpi_ctx *ctx, uint op);
+
+/**
+ * acpigen_write_method() - Write a method header
+ *
+ * @ctx: ACPI context pointer
+ * @name: Method name (4 characters)
+ * @nargs: Number of method arguments (0 if none)
+ */
+void acpigen_write_method(struct acpi_ctx *ctx, const char *name, int nargs);
+
+/**
+ * acpigen_write_method_serialized() - Write a method header
+ *
+ * This sets the 'serialized' flag so that the method is thread-safe
+ *
+ * @ctx: ACPI context pointer
+ * @name: Method name (4 characters)
+ * @nargs: Number of method arguments (0 if none)
+ */
+void acpigen_write_method_serialized(struct acpi_ctx *ctx, const char *name,
+ int nargs);
+
+/**
+ * acpigen_write_device() - Write an ACPI device
+ *
+ * @ctx: ACPI context pointer
+ * @name: Device name to write
+ */
+void acpigen_write_device(struct acpi_ctx *ctx, const char *name);
+
+/**
+ * acpigen_write_sta() - Write a _STA method
+ *
+ * @ctx: ACPI context pointer
+ * @status: Status value to return
+ */
+void acpigen_write_sta(struct acpi_ctx *ctx, uint status);
+
+/**
+ * acpigen_write_resourcetemplate_header() - Write a ResourceTemplate header
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_resourcetemplate_header(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_resourcetemplate_footer() - Write a ResourceTemplate footer
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_resourcetemplate_footer(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_register_resource() - Write a register resource
+ *
+ * This writes a header, the address information and a footer
+ *
+ * @ctx: ACPI context pointer
+ * @addr: Address to write
+ */
+void acpigen_write_register_resource(struct acpi_ctx *ctx,
+ const struct acpi_gen_regaddr *addr);
+
+/**
+ * acpigen_write_sleep() - Write a sleep operation
+ *
+ * @ctx: ACPI context pointer
+ * @sleep_ms: Number of milliseconds to sleep for
+ */
+void acpigen_write_sleep(struct acpi_ctx *ctx, u64 sleep_ms);
+
+/**
+ * acpigen_write_store() - Write a store operation
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_store(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_debug_string() - Write a debug string
+ *
+ * This writes a debug operation with an associated string
+ *
+ * @ctx: ACPI context pointer
+ * @str: String to write
+ */
+void acpigen_write_debug_string(struct acpi_ctx *ctx, const char *str);
+
+/**
+ * acpigen_write_or() - Write a bitwise OR operation
+ *
+ * res = arg1 | arg2
+ *
+ * @ctx: ACPI context pointer
+ * @arg1: ACPI opcode for operand 1 (e.g. LOCAL0_OP)
+ * @arg2: ACPI opcode for operand 2 (e.g. LOCAL1_OP)
+ * @res: ACPI opcode for result (e.g. LOCAL2_OP)
+ */
+void acpigen_write_or(struct acpi_ctx *ctx, u8 arg1, u8 arg2, u8 res);
+
+/**
+ * acpigen_write_and() - Write a bitwise AND operation
+ *
+ * res = arg1 & arg2
+ *
+ * @ctx: ACPI context pointer
+ * @arg1: ACPI opcode for operand 1 (e.g. LOCAL0_OP)
+ * @arg2: ACPI opcode for operand 2 (e.g. LOCAL1_OP)
+ * @res: ACPI opcode for result (e.g. LOCAL2_OP)
+ */
+void acpigen_write_and(struct acpi_ctx *ctx, u8 arg1, u8 arg2, u8 res);
+
+/**
+ * acpigen_write_not() - Write a bitwise NOT operation
+ *
+ * res = ~arg1
+ *
+ * @ctx: ACPI context pointer
+ * @arg: ACPI opcode for operand (e.g. LOCAL0_OP)
+ * @res: ACPI opcode for result (e.g. LOCAL2_OP)
+ */
+void acpigen_write_not(struct acpi_ctx *ctx, u8 arg, u8 res);
+
+/**
+ * acpigen_write_power_res() - Write a power resource
+ *
+ * Name (_PRx, Package(One) { name })
+ * ...
+ * PowerResource (name, level, order)
+ *
+ * The caller should fill in the rest of the power resource and then call
+ * acpigen_pop_len() to close it off
+ *
+ * @ctx: ACPI context pointer
+ * @name: Name of power resource (e.g. "PRIC")
+ * @level: Deepest sleep level that this resource must be kept on (0=S0, 3=S3)
+ * @order: Order that this must be enabled/disabled (e.g. 0)
+ * @dev_stats: List of states to define, e.g. {"_PR0", "_PR3"}
+ * @dev_states_count: Number of dev states
+ */
+void acpigen_write_power_res(struct acpi_ctx *ctx, const char *name, uint level,
+ uint order, const char *const dev_states[],
+ size_t dev_states_count);
+
+/**
+ * acpigen_set_enable_tx_gpio() - Emit ACPI code to enable/disable a GPIO
+ *
+ * This emits code to either enable to disable a Tx GPIO. It takes account of
+ * the GPIO polarity.
+ *
+ * The code needs access to the DW0 register for the pad being used. This is
+ * provided by gpio->pin0_addr and ACPI methods must be defined for the board
+ * which can read and write the pad's DW0 register given this address:
+ * @dw0_read: takes a single argument, the DW0 address
+ * returns the DW0 value
+ * @dw0:write: takes two arguments, the DW0 address and the value to write
+ * no return value
+ *
+ * Example code (-- means comment):
+ *
+ * -- Get Pad Configuration DW0 register value
+ * Method (GPC0, 0x1, Serialized)
+ * {
+ * -- Arg0 - GPIO DW0 address
+ * Store (Arg0, Local0)
+ * OperationRegion (PDW0, SystemMemory, Local0, 4)
+ * Field (PDW0, AnyAcc, NoLock, Preserve) {
+ * TEMP, 32
+ * }
+ * Return (TEMP)
+ * }
+ *
+ * -- Set Pad Configuration DW0 register value
+ * Method (SPC0, 0x2, Serialized)
+ * {
+ * -- Arg0 - GPIO DW0 address
+ * -- Arg1 - Value for DW0 register
+ * Store (Arg0, Local0)
+ * OperationRegion (PDW0, SystemMemory, Local0, 4)
+ * Field (PDW0, AnyAcc, NoLock, Preserve) {
+ * TEMP,32
+ * }
+ * Store (Arg1, TEMP)
+ * }
+ *
+ *
+ * @ctx: ACPI context pointer
+ * @tx_state_val: Mask to use to toggle the TX state on the GPIO pin, e,g.
+ * PAD_CFG0_TX_STATE
+ * @dw0_read: Method name to use to read dw0, e.g. "\\_SB.GPC0"
+ * @dw0_write: Method name to use to read dw0, e.g. "\\_SB.SPC0"
+ * @gpio: GPIO to change
+ * @enable: true to enable GPIO, false to disable
+ * Returns 0 on success, -ve on error.
+ */
+int acpigen_set_enable_tx_gpio(struct acpi_ctx *ctx, u32 tx_state_val,
+ const char *dw0_read, const char *dw0_write,
+ struct acpi_gpio *gpio, bool enable);
+
+/**
+ * acpigen_write_prw() - Write a power resource for wake (_PRW)
+ *
+ * @ctx: ACPI context pointer
+ * @wake: GPE that wakes up the device
+ * @level: Deepest power system sleeping state that can be entered while still
+ * providing wake functionality
+ */
+void acpigen_write_prw(struct acpi_ctx *ctx, uint wake, uint level);
+
+/**
+ * acpigen_write_if() - Write an If block
+ *
+ * This requires a call to acpigen_pop_len() to complete the block
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_if(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_if_lequal_op_int() - Write comparison between op and integer
+ *
+ * Generates ACPI code for checking if operand1 and operand2 are equal
+ *
+ * If (Lequal (op, val))
+ *
+ * @ctx: ACPI context pointer
+ * @op: Operand to check
+ * @val: Value to check against
+ */
+void acpigen_write_if_lequal_op_int(struct acpi_ctx *ctx, uint op, u64 val);
+
+/**
+ * acpigen_write_else() - Write an Ef block
+ *
+ * This requires a call to acpigen_pop_len() to complete the block
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_else(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_to_buffer() - Write a ToBuffer operation
+ *
+ * E.g.: to generate: ToBuffer (Arg0, Local0)
+ * use acpigen_write_to_buffer(ctx, ARG0_OP, LOCAL0_OP)
+ *
+ * @ctx: ACPI context pointer
+ * @src: Source argument
+ * @dst: Destination argument
+ */
+void acpigen_write_to_buffer(struct acpi_ctx *ctx, uint src, uint dst);
+
+/**
+ * acpigen_write_to_integer() - Write a ToInteger operation
+ *
+ * E.g.: to generate: ToInteger (Arg0, Local0)
+ * use acpigen_write_to_integer(ctx, ARG0_OP, LOCAL0_OP)
+ *
+ * @ctx: ACPI context pointer
+ * @src: Source argument
+ * @dst: Destination argument
+ */
+void acpigen_write_to_integer(struct acpi_ctx *ctx, uint src, uint dst);
+
+/**
+ * acpigen_write_return_byte_buffer() - Write a return of a byte buffer
+ *
+ * @ctx: ACPI context pointer
+ * @arr: Array of bytes to return
+ * @size: Number of bytes
+ */
+void acpigen_write_return_byte_buffer(struct acpi_ctx *ctx, u8 *arr,
+ size_t size);
+
+/**
+ * acpigen_write_return_singleton_buffer() - Write a return of a 1-byte buffer
+ *
+ * @ctx: ACPI context pointer
+ * @arg: Byte to return
+ */
+void acpigen_write_return_singleton_buffer(struct acpi_ctx *ctx, uint arg);
+
+/**
+ * acpigen_write_return_byte() - Write a return of a byte
+ *
+ * @ctx: ACPI context pointer
+ * @arg: Byte to return
+ */
+void acpigen_write_return_byte(struct acpi_ctx *ctx, uint arg);
+
+/**
+ * acpigen_write_dsm_start() - Start a _DSM method
+ *
+ * Generate ACPI AML code to start the _DSM method.
+ *
+ * The functions need to be called in the correct sequence as below.
+ *
+ * Within the <generate-code-here> region, Local0 and Local1 must be are left
+ * untouched, but Local2-Local7 can be used
+ *
+ * Arguments passed into _DSM method:
+ * Arg0 = UUID
+ * Arg1 = Revision
+ * Arg2 = Function index
+ * Arg3 = Function-specific arguments
+ *
+ * AML code generated looks like this:
+ * Method (_DSM, 4, Serialized) { -- acpigen_write_dsm_start)
+ * ToBuffer (Arg0, Local0)
+ * If (LEqual (Local0, ToUUID(uuid))) { -- acpigen_write_dsm_uuid_start
+ * ToInteger (Arg2, Local1)
+ * If (LEqual (Local1, 0)) { -- acpigen_write_dsm_uuid_start_cond
+ * <generate-code-here>
+ * } -- acpigen_write_dsm_uuid_end_cond
+ * ...
+ * If (LEqual (Local1, n)) { -- acpigen_write_dsm_uuid_start_cond
+ * <generate-code-here>
+ * } -- acpigen_write_dsm_uuid_end_cond
+ * Return (Buffer (One) { 0x0 })
+ * } -- acpigen_write_dsm_uuid_end
+ * ...
+ * If (LEqual (Local0, ToUUID(uuidn))) {
+ * ...
+ * }
+ * Return (Buffer (One) { 0x0 }) -- acpigen_write_dsm_end
+ * }
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_dsm_start(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_dsm_uuid_start() - Start a new UUID block
+ *
+ * This starts generation of code to handle a particular UUID:
+ *
+ * If (LEqual (Local0, ToUUID(uuid))) {
+ * ToInteger (Arg2, Local1)
+ *
+ * @ctx: ACPI context pointer
+ */
+int acpigen_write_dsm_uuid_start(struct acpi_ctx *ctx, const char *uuid);
+
+/**
+ * acpigen_write_dsm_uuid_start_cond() - Start a new condition block
+ *
+ * This starts generation of condition-checking code to handle a particular
+ * function:
+ *
+ * If (LEqual (Local1, i))
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_dsm_uuid_start_cond(struct acpi_ctx *ctx, int seq);
+
+/**
+ * acpigen_write_dsm_uuid_end_cond() - Start a new condition block
+ *
+ * This ends generation of condition-checking code to handle a particular
+ * function:
+ *
+ * }
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_dsm_uuid_end_cond(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_dsm_uuid_end() - End a UUID block
+ *
+ * This ends generation of code to handle a particular UUID:
+ *
+ * Return (Buffer (One) { 0x0 })
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_dsm_uuid_end(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_dsm_end() - End a _DSM method
+ *
+ * This ends generates of the _DSM block:
+ *
+ * Return (Buffer (One) { 0x0 })
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_dsm_end(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_processor() - Write a Processor package
+ *
+ * This emits a Processor package header with the required information. The
+ * caller must complete the information and call acpigen_pop_len() at the end
+ *
+ * @ctx: ACPI context pointer
+ * @cpuindex: CPU number
+ * @pblock_addr: PBlk system IO address
+ * @pblock_len: PBlk length
+ */
+void acpigen_write_processor(struct acpi_ctx *ctx, uint cpuindex,
+ u32 pblock_addr, uint pblock_len);
+
+/**
+ * acpigen_write_processor_package() - Write a package containing the processors
+ *
+ * The package containins the name of each processor in the SoC
+ *
+ * @ctx: ACPI context pointer
+ * @name: Package name (.e.g "PPKG")
+ * @first_core: Number of the first core (e.g. 0)
+ * @core_count: Number of cores (e.g. 4)
+ */
+void acpigen_write_processor_package(struct acpi_ctx *ctx, const char *name,
+ uint first_core, uint core_count);
+
+/**
+ * acpigen_write_processor_cnot() - Write a processor notification method
+ *
+ * This writes a method that notifies all CPU cores
+ *
+ * @ctx: ACPI context pointer
+ * @num_cores: Number of CPU cores
+ */
+void acpigen_write_processor_cnot(struct acpi_ctx *ctx, const uint num_cores);
+
+/**
+ * acpigen_write_ppc() - generates a function returning max P-states
+ *
+ * @ctx: ACPI context pointer
+ * @num_pstates: Number of pstates to return
+ */
+void acpigen_write_ppc(struct acpi_ctx *ctx, uint num_pstates);
+
+/**
+ * acpigen_write_ppc() - generates a function returning PPCM
+ *
+ * This returns the maximum number of supported P-states, as saved in the
+ * variable PPCM
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_ppc_nvs(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_tpc() - Write a _TPC method that returns the TPC limit
+ *
+ * @ctx: ACPI context pointer
+ * @gnvs_tpc_limit: Variable that holds the TPC limit
+ */
+void acpigen_write_tpc(struct acpi_ctx *ctx, const char *gnvs_tpc_limit);
+
+/**
+ * acpigen_write_pss_package() - Write a PSS package
+ *
+ * See ACPI v6.3 section 8.4.6: Processor Performance Control
+ *
+ * @ctx: ACPI context pointer
+ * @corefreq: CPU core frequency in MHz
+ * @translat: worst-case latency in uS that the CPU is unavailable during a
+ * transition from any performance state to this performance state
+ * @busmlat: worst-case latency in microseconds that Bus Masters are prevented
+ * from accessing memory during a transition from any performance state to
+ * this performance state
+ * @control: Value to write to PERF_CTRL to move to this performance state
+ * @status: Expected PERF_STATUS value when in this state
+ */
+void acpigen_write_pss_package(struct acpi_ctx *ctx, uint corefreq, uint power,
+ uint translat, uint busmlat, uint control,
+ uint status);
+
+/**
+ * acpigen_write_psd_package() - Write a PSD package
+ *
+ * Writes a P-State dependency package
+ *
+ * See ACPI v6.3 section 8.4.6.5: _PSD (P-State Dependency)
+ *
+ * @ctx: ACPI context pointer
+ * @domain: Dependency domain number to which this P state entry belongs
+ * @numprocs: Number of processors belonging to the domain for this logical
+ * processor’s P-states
+ * @coordtype: Coordination type
+ */
+void acpigen_write_psd_package(struct acpi_ctx *ctx, uint domain, uint numprocs,
+ enum psd_coord coordtype);
+
+/**
+ * acpigen_write_cst_package() - Write a _CST package
+ *
+ * See ACPI v6.3 section 8.4.2.1: _CST (C States)
+ *
+ * @ctx: ACPI context pointer
+ * @entry: Array of entries
+ * @nentries; Number of entries
+ */
+void acpigen_write_cst_package(struct acpi_ctx *ctx,
+ const struct acpi_cstate *entry, int nentries);
+
+/**
+ * acpigen_write_csd_package() - Write a _CSD Package
+ *
+ * See ACPI v6.3 section 8.4.2.2: _CSD (C-State Dependency)
+ *
+ * @ctx: ACPI context pointer
+ * @domain: dependency domain number to which this C state entry belongs
+ * @numprocs: number of processors belonging to the domain for the particular
+ * C-state
+ * @coordtype: Co-ordination type
+ * @index: Index of the C-State entry in the _CST object for which the
+ * dependency applies
+ */
+void acpigen_write_csd_package(struct acpi_ctx *ctx, uint domain, uint numprocs,
+ enum csd_coord coordtype, uint index);
+
+/**
+ * acpigen_write_tss_package() - Write a _TSS package
+ *
+ * @ctx: ACPI context pointer
+ * @entry: Entries to write
+ * @nentries: Number of entries to write
+ */
+void acpigen_write_tss_package(struct acpi_ctx *ctx,
+ struct acpi_tstate *entry, int nentries);
+
+/**
+ * acpigen_write_tsd_package() - Write a _TSD package
+ *
+ * See ACPI v6.3 section 8.4.5.4: _TSD (T-State Dependency)
+ *
+ * @ctx: ACPI context pointer
+ * @domain: dependency domain number to which this T state entry belongs
+ * @numprocs: Number of processors belonging to the domain for this logical
+ * processor’s T-states
+ * @coordtype: Coordination type
+ */
+void acpigen_write_tsd_package(struct acpi_ctx *ctx, uint domain, uint numprocs,
+ enum psd_coord coordtype);
+
#endif
projects / platform / kernel / u-boot.git / blobdiff