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fdb6482244
For MSR type of uncore units, there is no difference between Ice Lake and Tiger Lake. Share the same code with Ice Lake. Tiger Lake has two MCs. Both of them are located at 0:0:0. The BAR offset is still 0x48. The offset of the two MCs is 0x10000. Each MC has three counters to count every read/write/total issued by the Memory Controller to DRAM. The counters can be accessed by MMIO. They are free-running counters. The offset of counters are different for TIGERLAKE_L and TIGERLAKE. Add separated mmio_init() functions. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Andi Kleen <ak@linux.intel.com> Link: https://lkml.kernel.org/r/20200206161527.3529-1-kan.liang@linux.intel.com |
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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 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.