Commit graph

10 commits

Author SHA1 Message Date
Sean Anderson
a04d5f60a5 spl: Convert spi to spl_load
This converts the spi load method to use spl_load. The address used for
LOAD_FIT_FULL may be different, but there are no in-tree users of that
config. Since payload_offs is only used without OS_BOOT, we defer its
initialization.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-11-16 13:49:14 -05:00
Sean Anderson
9b9c6aaaf2 spl: Convert semihosting to spl_load
This converts the semihosting load method to use spl_load. As a result, it
also adds support for LOAD_FIT_FULL and IMX images.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
2023-11-16 13:49:14 -05:00
Sean Anderson
6029a0e1af spl: Convert NVMe to spl_load
This converts the blk load method (used exclusively by NVMe) to use
spl_load. As a consequence, it also adds support for LOAD_FIT_FULL and
IMX images.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-11-16 13:49:14 -05:00
Sean Anderson
cbe86576cb spl: Convert nor to spl_load
This converts the nor load method to use spl_load. As a result it also
adds support for LOAD_FIT_FULL. Since this is the last caller of
spl_load_legacy_img, it has been removed.

We can't load FITs with external data with SPL_LOAD_FIT_FULL, so disable the
test in that case. No boards enable SPL_NOR_SUPPORT and SPL_LOAD_FIT_FULL, so
this is not a regression.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-11-16 13:49:14 -05:00
Sean Anderson
2e5476b5a7 spl: Convert net to spl_load
This converts the net load method to use spl_load. As a result, it also
adds support for LOAD_FIT_FULL and IMX images.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-11-16 13:49:14 -05:00
Sean Anderson
11f834614e spl: Convert nand to spl_load
This converts the nand load method to use spl_load. nand_page_size may not
be valid until after nand_spl_load_image is called (see e.g. fsl_ifc_spl),
so we set bl_len in spl_nand_read. Since spl_load reads the header for us,
we can remove that argument from spl_nand_load_element.

There are two possible regressions which could result from this commit.
First, we ask for a negative address from spl_get_load_buffer. That is,
instead of

	header = spl_get_load_buffer(0, sizeof(*header));

we do

	header = spl_get_load_buffer(-sizeof(*header), sizeof(*header));

this could cause a problem if spl_get_load_buffer does not return valid
memory for negative offsets. Second, we now set bl_len for legacy images.
This can cause memory up to a bl_len - 1 before the image load address to
be written, which might not have been the case before. If this turns out to
be a problem, we can add an option for a bounce buffer.

We can't load FITs with external data with SPL_LOAD_FIT_FULL, so disable the
test in that case. No boards enable SPL_NAND_SUPPORT and SPL_LOAD_FIT_FULL, so
this is not a regression.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-11-16 13:49:14 -05:00
Sean Anderson
5d3401a448 spl: Convert mmc to spl_load
This converts the mmc loader to spl_load. Legacy images are handled by
spl_load (via spl_parse_image_header), so mmc_load_legacy can be
omitted. To accurately determine whether mmc_load_image_raw_sector is used
(which might not be the case if SYS_MMCSD_FS_BOOT is enabled), we introduce
a helper config SYS_MMCSD_RAW_MODE. This ensures we can inline spl_load
correctly when a board only boots from filesystems. We still need to check
for SPL_MMC, since some boards enable configure raw mode even without MMC
support.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-11-16 13:49:14 -05:00
Sean Anderson
682184e9b9 spl: Convert fat to spl_load
This converts the fat loader to use spl_load. Some platforms are very
tight on space, so we take care to only include the code we really need.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-11-16 13:49:14 -05:00
Sean Anderson
b8ed722567 spl: Convert ext to use spl_load
This converts the ext load method to use spl_load. As a consequence, it
also adds support for FIT and IMX images.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-11-16 13:49:14 -05:00
Sean Anderson
775074165d spl: Add generic spl_load function
Implementers of SPL_LOAD_IMAGE_METHOD have to correctly determine what
type of image is being loaded and then call the appropriate image load
function correctly. This is tricky, because some image load functions
expect the whole image to already be loaded (CONFIG_SPL_LOAD_FIT_FULL),
some will load the image automatically using spl_load_info.read()
(CONFIG_SPL_LOAD_FIT/CONFIG_SPL_LOAD_IMX_CONTAINER), and some just parse
the header and expect the caller to do the actual loading afterwards
(legacy/raw images). Load methods often only support a subset of the
above methods, meaning that not all image types can be used with all
load methods. Further, the code to invoke these functions is
duplicated between different load functions.

To address this problem, this commit introduces a "spl_load" function.
It aims to handle image detection and correct invocation of each of the
parse/load functions.

Although this function generally results in a size reduction with
several users, it tends to bloat boards with only a single user.
This is generally because programmers open-coding the contents of this
function can make optimizations based on the specific loader. For
example, NOR flash is memory-mapped, so it never bothers calling
load->read. The compiler can't really make these optimizations across
translation units. LTO solves this, but it is only available on some
arches. To address this, perform "pseudo-LTO" by inlining spl_load when
there are one or fewer users. At the moment, there are no users, so
define SPL_LOAD_USERS to be 0.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-11-16 13:49:14 -05:00