Will Deacon 8658bb981e arm64: cpufeature: Relax checks for AArch32 support at EL[0-2]
[ Upstream commit 98448cdfe7060dd5491bfbd3f7214ffe1395d58e ]

We don't need to be quite as strict about mismatched AArch32 support,
which is good because the friendly hardware folks have been busy
mismatching this to their hearts' content.

  * We don't care about EL2 or EL3 (there are silly comments concerning
    the latter, so remove those)

  * EL1 support is gated by the ARM64_HAS_32BIT_EL1 capability and handled
    gracefully when a mismatch occurs

  * EL0 support is gated by the ARM64_HAS_32BIT_EL0 capability and handled
    gracefully when a mismatch occurs

Relax the AArch32 checks to FTR_NONSTRICT.

Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20200421142922.18950-8-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:14:43 +02:00
2020-10-01 13:14:25 +02:00
2020-06-03 08:19:31 +02:00
2018-04-15 17:21:30 -07:00
2018-08-25 18:13:10 -07:00
2017-11-17 17:45:29 -08:00
2020-09-26 18:01:33 +02:00

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 Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.
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