a616a4be36
AMD's Family 17h SOCs have the same vendor and device IDs for their graphics blocks, but need different video BIOSes. The only difference is the revision number. Add a Kconfig option that allows us to add the revision number of the graphics device to the PCI option rom saved in CBFS. Because searching CBFS takes a non-trivial amount of time, only enable the option if it's needed. If it's not used, or if nothing matches, the check will fall through and search for an option rom with no version. BUG=b:145817712 TEST=With surrounding patches, loads dali vbios Change-Id: Icb610a2abe7fcd0f4dc3716382b9853551240a7a Signed-off-by: Martin Roth <martinroth@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/2013181 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39792 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
60 lines
2.7 KiB
C
60 lines
2.7 KiB
C
/*
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* This file is part of the coreboot project.
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _CBFS_H_
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#define _CBFS_H_
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#include <commonlib/cbfs.h>
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#include <program_loading.h>
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/***********************************************
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* Perform CBFS operations on the boot device. *
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***********************************************/
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/* Return mapping of option ROM found in boot device. NULL on error. */
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void *cbfs_boot_map_optionrom(uint16_t vendor, uint16_t device);
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/* Return mapping of option ROM with revision number. Returns NULL on error. */
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void *cbfs_boot_map_optionrom_revision(uint16_t vendor, uint16_t device, uint8_t rev);
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/* Locate file by name and optional type. Return 0 on success. < 0 on error. */
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int cbfs_boot_locate(struct cbfsf *fh, const char *name, uint32_t *type);
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/* Map file into memory leaking the mapping. Only should be used when
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* leaking mappings are a no-op. Returns NULL on error, else returns
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* the mapping and sets the size of the file. */
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void *cbfs_boot_map_with_leak(const char *name, uint32_t type, size_t *size);
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/* Locate file in a specific region of fmap. Return 0 on success. < 0 on error*/
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int cbfs_locate_file_in_region(struct cbfsf *fh, const char *region_name,
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const char *name, uint32_t *type);
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/* Load an arbitrary type file from CBFS into a buffer. Returns amount of
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* loaded bytes on success or 0 on error. File will get decompressed as
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* necessary. Same decompression requirements as
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* cbfs_load_and_decompress(). */
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size_t cbfs_boot_load_file(const char *name, void *buf, size_t buf_size,
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uint32_t type);
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/* Load |in_size| bytes from |rdev| at |offset| to the |buffer_size| bytes
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* large |buffer|, decompressing it according to |compression| in the process.
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* Returns the decompressed file size, or 0 on error.
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* LZMA files will be mapped for decompression. LZ4 files will be decompressed
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* in-place with the buffer size requirements outlined in compression.h. */
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size_t cbfs_load_and_decompress(const struct region_device *rdev, size_t offset,
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size_t in_size, void *buffer, size_t buffer_size, uint32_t compression);
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/* Load stage into memory filling in prog. Return 0 on success. < 0 on error. */
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int cbfs_prog_stage_load(struct prog *prog);
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/* Returns the region device of the currently active CBFS.
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Return < 0 on error, 0 on success. */
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int cbfs_boot_region_device(struct region_device *rdev);
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#endif
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