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| author | Dan Williams <dan.j.williams@intel.com> | 2023-02-11 05:11:01 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-02-11 05:11:01 +0300 |
| commit | b8b9ffced017528bcdd262730ab10bc5084c3bb4 (patch) | |
| tree | 1edb4782acb2d6704f3847181a480f375214a40f /drivers/cxl/Kconfig | |
| parent | dfd423e0a3256f88b8ea622fbbe04f91594195b6 (diff) | |
| parent | 09d09e04d2fcf88c4620dd28097e0e2a8f720eac (diff) | |
| download | linux-b8b9ffced017528bcdd262730ab10bc5084c3bb4.tar.xz | |
Merge branch 'for-6.3/cxl-ram-region' into cxl/next
Include the support for enumerating and provisioning ram regions for
v6.3. This also include a default policy change for ram / volatile
device-dax instances to assign them to the dax_kmem driver by default.
Diffstat (limited to 'drivers/cxl/Kconfig')
| -rw-r--r-- | drivers/cxl/Kconfig | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/cxl/Kconfig b/drivers/cxl/Kconfig index 9e709ecba50f..ff4e78117b31 100644 --- a/drivers/cxl/Kconfig +++ b/drivers/cxl/Kconfig @@ -104,12 +104,22 @@ config CXL_SUSPEND depends on SUSPEND && CXL_MEM config CXL_REGION - bool + bool "CXL: Region Support" default CXL_BUS # For MAX_PHYSMEM_BITS depends on SPARSEMEM select MEMREGION select GET_FREE_REGION + help + Enable the CXL core to enumerate and provision CXL regions. A CXL + region is defined by one or more CXL expanders that decode a given + system-physical address range. For CXL regions established by + platform-firmware this option enables memory error handling to + identify the devices participating in a given interleaved memory + range. Otherwise, platform-firmware managed CXL is enabled by being + placed in the system address map and does not need a driver. + + If unsure say 'y' config CXL_REGION_INVALIDATION_TEST bool "CXL: Region Cache Management Bypass (TEST)" |