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The RAS Capabilitiy Structure is a CXL Component register capability block. Unlike the HDM Decoder Capability, it will be referenced by the cxl_pci driver in response to PCIe AER events. Due to this it is no longer the case that cxl_map_component_regs() can assume that it should map all component registers. Plumb a bitmask of capability ids to map through cxl_map_component_regs(). For symmetry cxl_probe_device_regs() is updated to populate @id in 'struct cxl_reg_map' even though cxl_map_device_regs() does not have a need to map a subset of the device registers per caller. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/166974412214.1608150.11487843455070795378.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.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.