u-boot.git/lib/acpi, branch v2024.07

acpi: rename aslc_id, aslc_revision

2024-03-27T08:15:39+00:00

The fields Creator ID and Creator Revision contain information about the
tool that created an ACPI table. This may be the ASL compiler for some
tables but it is not for others. Naming these fields aslc_id and
aslc_revision is misleading.

It is usual to see diverse values of Creator ID. On a laptop I saw these:
'AMD ', 'INTL, 'MSFT', 'PTEC'. Obviously not all relate to the Intel
ASL compiler.

Signed-off-by: Heinrich Schuchardt

acpi: Kconfig symbol CONFIG_QFW_ACPI

2024-01-07T20:49:15+00:00

We have two implementations of write_acpi_tables(). One for writing ACPI
tables based on ACPI_WRITER() entries another based on copying tables from
QEMU.

Create a symbol CONFIG_QFW_ACPI that signifies copying ACPI tables from
QEMU and use it consistently.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Simon Glass

acpi: support 64bit in acpi_find_table for DSDT and FACS

2024-01-07T20:49:08+00:00

Use X_DSDT and X_FIRMWARE_CTRL if available.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Simon Glass 
Rebased on -next to use nomap:
Signed-off-by: Simon Glass

acpi: Write pointers to tables instead of addresses

2024-01-07T20:45:07+00:00

Sandbox uses an API to map between addresses and pointers. This allows
it to have (emulated) memory at zero and avoid arch-specific addressing
details. It also allows memory-mapped peripherals to work.

As an example, on many machines sandbox maps address 100 to pointer
value 10000000.

However this is not correct for ACPI, if sandbox starts another program
(e.g EFI app) and passes it the tables. That app has no knowledge of
sandbox's address mapping. So to make this work we want to store
10000000 as the value in the table.

Add two new 'nomap' functions which clearly make this exeption to how
sandbox works.

This should allow EFI apps to access ACPI tables with sandbox, e.g. for
testing purposes.

Signed-off-by: Simon Glass 
Suggested-by: Heinrich Schuchardt

lib: Remove inclusion from these files

2023-12-21T13:54:37+00:00

After some header file cleanups to add missing include files, remove
common.h from all files in the lib directory. This primarily means just
dropping the line but in a few cases we need to add in other header
files now.

Reviewed-by: Simon Glass 
Signed-off-by: Tom Rini

acpi: consider XSDT in acpi_find_table()

2023-12-13T23:39:05+00:00

The RSDT table is deprecated and does not exist on all systems.

By preference scan XSDT for the table to find. If no XSDT table exists, try
to use the RSDT table.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Simon Glass 
Reviewed-by: Ilias Apalodimas

acpi: simplify acpi_write_ssdt()

2023-12-13T23:39:05+00:00

* Converting to void * is superfluous when calling memset().
* acpi_fill_header() already fills oem_table_id.

Fixes: d953137526cc ("x86: Move SSDT table to a writer function")
Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Simon Glass

acpi: cannot have RSDT above 4 GiB

2023-12-13T23:39:05+00:00

The field RsdtAddress has only 32 bit. The RSDT table cannot be located
beyond 4 GiB.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Simon Glass

Merge tag v2023.07-rc4 into next

2023-06-12T18:55:33+00:00

Signed-off-by: Tom Rini

acpi: Put the version numbers in a central place

2023-05-31T21:23:01+00:00

At present two acpi files are built every time since they use a version
number from version.h

This is not necessary. Make use of the same technique as for the version
string, so that they are build only when they change.

Signed-off-by: Simon Glass