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| author | Dave Jiang <dave.jiang@intel.com> | 2023-12-22 01:03:13 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-12-23 01:33:10 +0300 |
| commit | ad6f04c0269b0b7908f09621d3b3c90def39a297 (patch) | |
| tree | 367e7ed27fe305969f147bb530e83ec09a6cb146 /drivers/cxl/Kconfig | |
| parent | ca53543d8e340070fb37fde93f36ed9012c76b90 (diff) | |
| download | linux-ad6f04c0269b0b7908f09621d3b3c90def39a297.tar.xz | |
cxl: Add callback to parse the DSMAS subtables from CDAT
Provide a callback function to the CDAT parser in order to parse the
Device Scoped Memory Affinity Structure (DSMAS). Each DSMAS structure
contains the DPA range and its associated attributes in each entry. See
the CDAT specification for details. The device handle and the DPA range
is saved and to be associated with the DSLBIS locality data when the
DSLBIS entries are parsed. The xarray is a local variable. When the
total path performance data is calculated and storred this xarray can be
discarded.
Coherent Device Attribute Table 1.03 2.1 Device Scoped memory Affinity
Structure (DSMAS)
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/170319619355.2212653.2675953129671561293.stgit@djiang5-mobl3
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/Kconfig')
| -rw-r--r-- | drivers/cxl/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/cxl/Kconfig b/drivers/cxl/Kconfig index 8ea1d340e438..67998dbd1d46 100644 --- a/drivers/cxl/Kconfig +++ b/drivers/cxl/Kconfig @@ -5,6 +5,7 @@ menuconfig CXL_BUS select FW_LOADER select FW_UPLOAD select PCI_DOE + select FIRMWARE_TABLE help CXL is a bus that is electrically compatible with PCI Express, but layers three protocols on that signalling (CXL.io, CXL.cache, and @@ -54,8 +55,10 @@ config CXL_MEM_RAW_COMMANDS config CXL_ACPI tristate "CXL ACPI: Platform Support" depends on ACPI + depends on ACPI_NUMA default CXL_BUS select ACPI_TABLE_LIB + select ACPI_HMAT help Enable support for host managed device memory (HDM) resources published by a platform's ACPI CXL memory layout description. See |