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2f5cd0c7ff
Up until now we've been using the generic (weak) implementation for kgdb_roundup_cpus() when using kgdb on arm64. Let's move to a custom one. The advantage here is that, when pseudo-NMI is enabled on a device, we'll be able to round up CPUs using pseudo-NMI. This allows us to debug CPUs that are stuck with interrupts disabled. If pseudo-NMIs are not enabled then we'll fallback to just using an IPI, which is still slightly better than the generic implementation since it avoids the potential situation described in the generic kgdb_call_nmi_hook(). Co-developed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Sumit Garg <sumit.garg@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20230906090246.v13.6.I2ef26d1b3bfbed2d10a281942b0da7d9854de05e@changeid Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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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.
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.