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2022-01-13bloblist: Relicense to allow BSD-3-ClauseSimon Glass1-1/+1
This implementation is intended to be copied to other projects and modified, to as to foster a standard means of communcating runtime information between firmware projects. The GPL-2 license is too restrictive for some projects, e.g. those intended as reference implementations rather than designed for collaborative open-source development. Update the license to make this easier to share. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-13bloblist: doc: Bring in the API documentationSimon Glass1-34/+45
FIx up various minor errors and add the API documentation to the bloblist docs, since it is quite useful to see it in the same place. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-13bloblist: Add functions to obtain base address and sizeSimon Glass1-0/+14
Add a few convenience functions to obtain useful information about the bloblist. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-13bloblist: Refactor Kconfig to support alloc or fixedSimon Glass1-0/+10
At present we do support allocating the bloblist but the Kconfig is a bit strange, since we still have to specify an address in that case. Partly this is because it is a pain to have CONFIG options that disappears when its dependency is enabled. It means that we must have #ifdefs in the code, either in the C code or header file. Make use of IF_ENABLED_INT() and its friend to solve that problem, so we can separate out the location of bloblist into a choice. Put the address and size into variables so we can log the result. Add the options for SPL as well, so we can use CONFIG_IS_ENABLED(). Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-13bloblist: Use explicit numbering for the tagsSimon Glass1-11/+47
At present if someone adds a tag in the middle of the list it works well enough within a U-Boot build. But if these tags are used in another project, or with an older version of SPL, the numbers make become inconsistent. Use explicit tag numbers that never change, to resolve this problem. Allocate areas for existing U-Boot tags and set up an area for use by projects and vendors, as well as for private use. Keep tags above 0x10000 unallocated for now. Update bloblist_tag_name() and the tests to work with this new setup. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-13bloblist: Drop unused tagsSimon Glass1-2/+0
The EC event log tag is no-longer used. The vboot handoff is now handled by the vboot context instead. Drop these unused tags. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-13bloblist: Rename the SPL tagSimon Glass1-1/+1
Add a U_BOOT prefix to this tag since it is specific to the U-Boot project. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-13bloblist: Put the magic number firstSimon Glass1-2/+23
It seems best to put the magic number right at the start of the bloblist header, so it is easier to check. This is how devicetree works. Make this change now, before other projects make use of bloblist. Other changes may be needed / discussed, but that is TBD. Add a checker function as well. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-21bloblist: Tidy up a few API commentsSimon Glass1-3/+7
Some comments for struct bloblist_hdr are a bit ambiguous. Update them to clarify the meaning more precisely. Also document bloblist_get_stats() properly. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-21bloblist: Support resizing a blobSimon Glass1-0/+13
Sometimes a blob needs to expand, e.g. because it needs to hold more log data. Add support for this. Note that the bloblist must have sufficient spare space for this to work. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-28bloblist: Support relocating to a larger spaceSimon Glass1-0/+10
Typically in TPL/SPL the bloblist is quite small. But U-Boot proper may want to add a lot more to it, such as ACPI tables. Add a way to expand the bloblist by relocating it in U-Boot proper, along with the other relocation activities. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-11-06x86: Allow putting some tables in the bloblistSimon Glass1-0/+2
At present all tables are placed starting at address f0000 in memory, and can be up to 64KB in size. If the tables are very large, this may not provide enough space. Also if the tables point to other tables (such as console log or a ramoops area) then we must allocate other memory anyway. The bloblist is a nice place to put these tables since it is contiguous, which makes it easy to reserve this memory for linux using the 820 tables. Add an option to put some of the tables in the bloblist. For SMBIOS and ACPI, create suitable pointers from the f0000 region to the new location of the tables. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/ 20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-06bloblist: Fix up a few commentsSimon Glass1-2/+2
Adjust a few comments to make the meaning clearer. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-06bloblist: Allow custom alignment for blobsSimon Glass1-2/+4
Some blobs need a larger alignment than the default. For example, ACPI tables often start at a 4KB boundary. Add support for this. Update the size of the test blob to allow these larger records. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-06bloblist: Add a commandSimon Glass1-0/+32
It is helpful to be able to see basic statistics about the bloblist and also to list its contents. Add a 'bloblist' command to handle this. Put the display functions in the bloblist modules rather than in the command code itself. That allows showing a list from SPL, where commands are not available. Also make bloblist_first/next_blob() static as they are not used outside this file. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25acpi: tpm: Add a TPM1 tableSimon Glass1-0/+1
This provides information about a v1 TPM in the system. Generate this table if the TPM is present. Add a required new bloblist type and correct the header order of one header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25acpi: tpm: Add a TPM2 tableSimon Glass1-0/+1
This provides information about a v2 TPM in the system. Generate this table if the TPM is present. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25x86: apl: Support writing the IntelGraphicsMem tableSimon Glass1-0/+1
This table is needed by the Linux graphics driver to handle graphics correctly. Write it to ACPI. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25x86: coral: Add ACPI tables for coralSimon Glass1-0/+5
This device has a large set of ACPI tables. Bring these in from coreboot so that full functionality is available (apart from SMI). Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-06bloblist: Tidy up a few comments and code-style nitsSimon Glass1-1/+2
Add a messing error code to bloblist_new() and tidy up the line length in bloblist_addrec(). Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-06bloblist: Add a new function to add or check sizeSimon Glass1-0/+13
A common check is to see if a blob is present, create it if not and make sure that the size is large enough. Add a function to handle this. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-11-26Add core support for a bloblist to convey data from SPLSimon Glass1-0/+195
At present there is no standard way in U-Boot to pass information from SPL to U-Boot proper. But sometimes SPL wants to convey information to U-Boot that U-Boot cannot easily figure out. For example, if SPL sets up SDRAM then it might want to pass the size of SDRAM, or the location of each bank, to U-Boot proper. Add a new 'bloblist' feature which provides this. A bloblist is set up in the first phase of U-Boot that runs (i.e. TPL or SPL). The location of this info may be in SRAM or CAR (x86 cache-as-RAM) or somewhere else. Information placed in this region is preserved (with a checksum) through TPL and SPL and ends up in U-Boot. At this point it is copied into SDRAM so it can be used after relocation. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Andreas Dannenberg <dannenberg@ti.com>
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