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fdf13a6575
In power10 DD1, there is an issue that causes the SIAR_VALID bit of the SIER (Sampled Instruction Event Register) to not be set. But the SIAR_VALID bit is used for fetching the instruction address from the SIAR (Sampled Instruction Address Register), and marked events are sampled only if the SIAR_VALID bit is set. So drop the check for SIAR_VALID and return true always incase of power10 DD1. Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201021085329.384535-2-maddy@linux.ibm.com
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.