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1583971b5c
The IMC free-running counters on Sapphire Rapids server are also accessed by MMIO, which is similar to the previous platforms, SNR and ICX. The only difference is the device ID of the device which contains BAR address. Factor out snr_uncore_mmio_map() which ioremap the MMIO space. It can be reused in the following patch for SPR. Use the snr_uncore_mmio_map() in the icx_uncore_imc_freerunning_init_box(). There is no box_ctl for the free-running counters. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Andi Kleen <ak@linux.intel.com> Link: https://lore.kernel.org/r/1625087320-194204-14-git-send-email-kan.liang@linux.intel.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.