u-boot.git/include/bloblist.h, branch master

Merge patch series "bloblist: refactor xferlist and bloblist"

2025-02-20T00:49:47+00:00

Tom Rini  says:

This small series separates "bloblist" and "standard passage" to allow
for these similar concepts to explore solutions to problems without
introduces breaking changes to the other.

Link: https://lore.kernel.org/r/20250220000223.1044376-1-raymond.mao@linaro.org

bloblist: kconfig for mandatory incoming standard passage

2025-02-20T00:49:36+00:00

In previous commit, incoming standard passage is used by default
when initializing the bloblist, so explicitly BLOBLIST_PASSAGE is
no more needed.
Rename it as BLOBLIST_PASSAGE_MANDATORY to determine the behaviors
when an incoming transfer list does not exist or is invalid.
When it is selected, incoming standard passage is mandatory and
U-Boot will report an error when a valid incoming transfer list is
missing.

Signed-off-by: Raymond Mao

bloblist: refactor xferlist and bloblist

2025-02-20T00:49:36+00:00

Refactor the xferlist to remove the relocating when bloblist passed
from the boot args.
Refactor bloblist init to use incoming standard passage by default
if a valid transfer list exists in the boot args.
For bloblist relocation, use the actual total size if it has a smaller
BLOBLIST_SIZE_RELOC.

Signed-off-by: Raymond Mao 
Suggested-by: Ilias Apalodimas

Merge patch series "Enable bloblist support on Vexpress64"

2025-02-12T00:09:05+00:00

Harrison Mutai  says:

This series of patches enhances the vexpress64 platform by enabling bloblist
support. It also introduces support for CONFIG_BLOBLIST_PASSAGE. This is
necessary to boot vexpress64 and other boards without manually specifying a
fixed address and size for the bloblist.

After this change, all the bloblist init modes are supported (i.e., fixed,
alloc, passage) and Vexpress64 boots with CONFIG_BLOBLIST_PASSAGE.

Link: https://lore.kernel.org/r/20250204175844.19890-1-harrison.mutai@arm.com

bloblist: fix typo in code comments

2025-02-12T00:08:58+00:00

Fix the two typos in the spelling of same and set in common/Kconfig and
include/bloblist.h.

Signed-off-by: Harrison Mutai

bloblist: add api to get blob with size

2025-01-28T06:59:21+00:00

bloblist_find function only returns the pointer of blob data,
which is fine for those self-describing data like FDT.
But as a common scenario, an interface is needed to retrieve both
the pointer and the size of the blob data.

Add a few ut test cases for the new api.

Signed-off-by: Raymond Mao 
Reviewed-by: Simon Glass 
Reviewed-by: Ilias Apalodimas 
Signed-off-by: Ilias Apalodimas

sandbox: fix bloblist_finish() linker error if BLOBLIST=n

2024-12-18T21:19:16+00:00

Having CONFIG_OF_EMBED=y && CONFIG_BLOBLIST=n leads to the link
error:
```
ld: /tmp/ccwtRVty.ltrans0.ltrans.o: in function `state_uninit':
arch/sandbox/cpu/state.c:508: undefined reference to `bloblist_finish'
```

Fixes: 1c52fcca72b ("sandbox: Write out bloblist when exiting")
Signed-off-by: Evgeny Bachinin 
Reviewed-by: Simon Glass

arm: cpu: Add ACPI parking protocol support

2024-10-27T23:24:13+00:00

On Arm platforms that use ACPI they cannot rely on the "spin-table"
CPU bringup usually defined in the FDT. Thus implement the
'ACPI Multi-processor Startup for ARM Platforms', also referred to as
'ACPI parking protocol'.

The ACPI parking protocol works similar to the spin-table mechanism, but
the specification also covers lots of shortcomings of the spin-table
implementations.

Every CPU defined in the ACPI MADT table has it's own 4K page where the
spinloop code and the OS mailbox resides. When selected the U-Boot board
code must make sure that the secondary CPUs enter u-boot after relocation
as well, so that they can enter the spinloop code residing in the ACPI
parking protocol pages.

The OS will then write to the mailbox and generate an IPI to release the
CPUs from the spinloop code.

For now it's only implemented on ARMv8, but can easily be extended to
other platforms, like ARMv7.

TEST: Boots all CPUs on qemu-system-aarch64 -machine raspi4b

Signed-off-by: Patrick Rudolph 
Reviewed-by: Simon Glass 
Cc: Simon Glass 
Cc: Tom Rini

bloblist: fix bloblist convention check.

2024-07-18T13:40:30+00:00

According to recently firmware handsoff spec [1]'s "Register usage at handoff
boundary", Transfer List's signature value was changed from 0x40_b10b
(3 bytes) to 4a0f_b10b (4 bytes).

As updating of TL's signature, register value of x1/r1 should be:

In aarch32's r1 value should be
    R1[23:0]: set to the TL signature (4a0f_b10b -> masked range value: 0f_b10b)
    R1[31:24]: version of the register convention ==  1

and

In aarch64's x1 value should be
    X1[31:0]: set to the TL signature (4a0f_b10b)
    X1[39:32]: version of the register convention ==  1
    X1[63:40]: MBZ
(See the [2] and [3]).

This patch fix problems:
   1. breaking X1 value with updated specification in aarch64
        - change of length of signature field.

   2. previous error value set in R1 in arm32.
        - length of signature should be 24, but it uses 32bit signature.

This patch is a breaking change. It works only TF-A is updated.

Link: https://github.com/FirmwareHandoff/firmware_handoff [1]
Link: https://github.com/FirmwareHandoff/firmware_handoff/issues/32 [2]
Link: https://github.com/FirmwareHandoff/firmware_handoff/commit/5aa7aa1d3a1db75213e458d392b751f0707de027 [3]
Signed-off-by: Levi Yun 
Reviewed-by: Raymond Mao 
Reviewed-by: Simon Glass

bloblist: Load the bloblist from the previous loader

2024-02-29T14:24:22+00:00

During bloblist initialization, load the bloblist via boot arguments
from the previous loader.
If a valid bloblist exists in boot arguments, relocate it into the
fixed bloblist memory region.
If not, fallback to support BLOBLIST_ADDR or BLOBLIST_ALLOC.

Signed-off-by: Raymond Mao