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| author | Terry Bowman <terry.bowman@amd.com> | 2022-12-01 13:34:27 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-12-05 10:32:26 -0800 |
| commit | da8380bbbe90f69bec4be69af4d0deb7cf2bbcfe (patch) | |
| tree | bda68065828ab1ba54788e1afe64d80a91d86655 /drivers/nvdimm/region.c | |
| parent | c9435dbee119f42132af2c3fc0382d16bda32601 (diff) | |
| download | lwn-da8380bbbe90f69bec4be69af4d0deb7cf2bbcfe.tar.gz lwn-da8380bbbe90f69bec4be69af4d0deb7cf2bbcfe.zip | |
cxl/acpi: Set ACPI's CXL _OSC to indicate RCD mode support
ACPI uses the CXL _OSC support method to communicate the available CXL
functionality to FW. The CXL _OSC support method includes a field to
indicate the OS is capable of RCD mode. FW can potentially change it's
operation depending on the _OSC support method reported by the OS.
The ACPI driver currently only sets the ACPI _OSC support method to
indicate CXL VH mode. Change the capability reported to also include
CXL RCD mode.
[1] CXL3.0 Table 9-26 'Interpretation of CXL _OSC Support Field'
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
[rrichter@amd.com: Reworded patch description.]
Signed-off-by: Robert Richter <rrichter@amd.com>
Link: http://lore.kernel.org/r/Y4cRV/Sj0epVW7bE@rric.localdomain
Link: https://lore.kernel.org/r/166993046717.1882361.10587956243041624761.stgit@dwillia2-xfh.jf.intel.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/region.c')
0 files changed, 0 insertions, 0 deletions