docs: early-userspace: move to driver-api guide
Those documents describe a kAPI. So, add to the driver-api book. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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@ -1,5 +1,3 @@
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:orphan:
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===============
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Early Userspace
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===============
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@ -16,6 +16,7 @@ available subsections can be seen below.
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basics
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infrastructure
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early-userspace/index
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pm/index
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clk
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device-io
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@ -239,7 +239,7 @@ rdinit=<executable file>
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A description of the process of mounting the root file system can be
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found in:
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Documentation/early-userspace/early_userspace_support.rst
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Documentation/driver-api/early-userspace/early_userspace_support.rst
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@ -105,7 +105,7 @@ All this differs from the old initrd in several ways:
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- The old initrd file was a gzipped filesystem image (in some file format,
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such as ext2, that needed a driver built into the kernel), while the new
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initramfs archive is a gzipped cpio archive (like tar only simpler,
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see cpio(1) and Documentation/early-userspace/buffer-format.rst). The
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see cpio(1) and Documentation/driver-api/early-userspace/buffer-format.rst). The
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kernel's cpio extraction code is not only extremely small, it's also
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__init text and data that can be discarded during the boot process.
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@ -159,7 +159,7 @@ One advantage of the configuration file is that root access is not required to
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set permissions or create device nodes in the new archive. (Note that those
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two example "file" entries expect to find files named "init.sh" and "busybox" in
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a directory called "initramfs", under the linux-2.6.* directory. See
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Documentation/early-userspace/early_userspace_support.rst for more details.)
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Documentation/driver-api/early-userspace/early_userspace_support.rst for more details.)
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The kernel does not depend on external cpio tools. If you specify a
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directory instead of a configuration file, the kernel's build infrastructure
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@ -18,7 +18,7 @@ config INITRAMFS_SOURCE
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When multiple directories and files are specified then the
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initramfs image will be the aggregate of all of them.
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See <file:Documentation/early-userspace/early_userspace_support.rst> for more details.
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See <file:Documentation/driver-api/early-userspace/early_userspace_support.rst> for more details.
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If you are not sure, leave it blank.
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