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Beleswar Padhi 6b4eacd05f Revert "arm64: dts: ti: k3-j721e-beagleboneai64: Fix reversed C6x carveout locations" 
[ Upstream commit 932424a925 ]

This reverts commit 1a314099b7.

The C6x carveouts are reversed intentionally. This is due to the
requirement to keep the DMA memory region as non-cached, however the
minimum granular cache region for C6x is 16MB. So, C66x_0 marks the
entire C66x_1 16MB memory carveouts as non-cached, and uses the DMA
memory region of C66x_1 as its own, and vice-versa.

This was also called out in the original commit which introduced these
reversed carveouts:
	"The minimum granularity on the Cache settings on C66x DSP
	cores is 16MB, so the DMA memory regions are chosen such that
	they are in separate 16MB regions for each DSP, while reserving
	a total of 16 MB for each DSP and not changing the overall DSP
        remoteproc carveouts."

Fixes: 1a314099b7 ("arm64: dts: ti: k3-j721e-beagleboneai64: Fix reversed C6x carveout locations")
Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
Acked-by: Andrew Davis <afd@ti.com>
Link: https://patch.msgid.link/20250908142826.1828676-23-b-padhi@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-10-15 12:03:30 +02:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.