diff options
| author | Simon Glass | 2020-09-22 12:45:11 -0600 |
|---|---|---|
| committer | Bin Meng | 2020-09-25 11:27:17 +0800 |
| commit | 15403289e5ddb0d777f95f5836add1316e2d9ae2 (patch) | |
| tree | 4a446c005d3ae4f179f1b9a6dbc9b44ade0c74bc /include | |
| parent | f37979e7b75e1290e9756c3e964a85ef8b10c3c7 (diff) | |
acpi: Add support for generating processor tables
ACPI has a number of CPU-related tables. Add utility functions to write
out the basic packages.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/acpi/acpigen.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/acpi/acpigen.h b/include/acpi/acpigen.h index c412898169e..3a2c6339d5e 100644 --- a/include/acpi/acpigen.h +++ b/include/acpi/acpigen.h @@ -64,7 +64,9 @@ enum { 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, @@ -777,4 +779,41 @@ void acpigen_write_dsm_uuid_end(struct acpi_ctx *ctx); */ 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); + #endif |