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2023-05-11acpi: Move the table-finding functions into the libarySimon Glass1-0/+2
This is useful for other features. Move the function into library code so it can be used outside just the 'acpi' command. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2023-05-11acpi: Create a new Kconfig for ACPISimon Glass1-0/+4
We have several Kconfig options for ACPI, but all relate to specific functions, such as generating tables and AML code. Add a new option which controls including basic ACPI library code, including the lib/acpi directory. This will allow us to add functions which are available even if table generation is not supported. Adjust the command to avoid a build error when ACPIGEN is not enabled. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-02-09acpi: Move MCFG implementation to common libMoritz Fischer1-0/+1
MCFG tables are used on multiple arches. Move to common ACPI lib. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Moritz Fischer <moritzf@google.com> Reviewed-by: Simon Glass <sjg@chromium.org> Use sizeof(*mcfg) instead of sizeof(*header) Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25x86: Move CSRT table to a writer functionSimon Glass1-0/+1
Move this table over to use a writer function, moving the code from the x86 implementation. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25x86: Move SSDT table to a writer functionSimon Glass1-0/+1
Move this table over to use a writer function, moving the code from the x86 implementation. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25x86: Move DSDT table to a writer functionSimon Glass1-0/+6
Move this table over to use a writer function, moving the code from the x86 implementation. Add a pointer to the DSDT in struct acpi_ctx so we can reference it later. Disable this table for sandbox since we don't actually compile real ASL code. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25x86: Move FACS table to a writer functionSimon Glass1-0/+1
Move this table over to use a writer function, moving the code from the x86 implementation. Add a pointer to the DSDT in struct acpi_ctx so we can reference it later. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25x86: Move base tables to a writer functionSimon Glass1-0/+5
Use the new ACPI writer to write the base tables at the start of the area, moving this code from the x86 implementation. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25x86: acpi: Split out context creation from base tablesSimon Glass1-0/+1
At present acpi_setup_base_tables() both sets up the ACPI context and writes out the base tables. We want to use an ACPI writer to write the base tables, so split this function into two, with acpi_setup_ctx() doing the context set, and acpi_setup_base_tables() just doing the base tables. Disable the writer's write_acpi_tables() function for now, to avoid build errors. It is enabled in a following patch. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25acpi: Use finer-grained control of ACPI-table generationSimon Glass1-4/+4
Rather than keying everything off ACPIGEN, use the main GENERATE_ACPI_TABLE option to determine whether the core ACPI code is included. Make sure these option are not enabled in SPL/TPL since we never generate tables there. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-17acpi: Support writing Device Properties objects via _DSDSimon Glass1-0/+1
More complex device properties can be provided to drivers via a device-specific data (_DSD) object. To create this we need to build it up in a separate data structure and then generate the ACPI code, due to its recursive nature. Add an implementation of this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17acpi: Support generation of ACPI codeSimon Glass1-0/+1
Add a new file to handle generating ACPI code programatically. This is used when information must be dynamically added to the tables, e.g. the SSDT. Initial support is just for writing simple values. Also add a 'base' value so that the table can be freed. This likely doesn't happen in normal code, but is nice to do in tests. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17acpi: Add a function to get a device path and scopeSimon Glass1-0/+1
Add a function to build up the ACPI path for a device and another for its scope. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-04-16acpi: Add a central location for table version numbersSimon Glass1-0/+4
Each ACPI table has its own version number. Add the version numbers in a single function so we can keep them consistent and easily see what versions are supported. Start a new acpi_table file in a generic directory to house this function. We can move things over to this file from x86 as needed. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>