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| author | Dan Williams <dan.j.williams@intel.com> | 2022-07-23 03:56:09 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-08-02 01:36:33 +0300 |
| commit | e77483055c325fa629c5835913b07f3dce3ac7fd (patch) | |
| tree | 495ef024370c09ba46e3e417913dadb969e06858 /drivers/cxl/core/hdm.c | |
| parent | 2bde6dbebc1cf02fd1b3d740246b92df1514a370 (diff) | |
| download | linux-e77483055c325fa629c5835913b07f3dce3ac7fd.tar.xz | |
cxl/acpi: Minimize granularity for x1 interleaves
The kernel enforces that region granularity is >= to the top-level
interleave-granularity for the given CXL window. However, when the CXL
window interleave is x1, i.e. non-interleaved at the host bridge level,
then the specified granularity does not matter. Override the window
specified granularity to the CXL minimum so that any valid region
granularity is >= to the root granularity.
Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://lore.kernel.org/r/165853776917.2430596.16823264262010844458.stgit@dwillia2-xfh.jf.intel.com
[djbw: add CXL_DECODER_MIN_GRANULARITY per vishal]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/core/hdm.c')
0 files changed, 0 insertions, 0 deletions