cxl/acpi: Support CXL XOR Interleave Math (CXIMS)

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When the CFMWS is using XOR math, parse the corresponding
CXIMS structure and store the xormaps in the root decoder
structure. Use the xormaps in a new lookup, cxl_hb_xor(),
to find a targets entry in the host bridge interleave
target list.

Defined in CXL Specfication 3.0 Section: 9.17.1

Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/5794813acdf7b67cfba3609c6aaff46932fa38d0.1669847017.git.alison.schofield@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Alison Schofield 2022-11-30 14:47:25 -08:00 • committed by Dan Williams

parent 7db0aa8cc0

commit f9db85bfec

3 changed files with 149 additions and 8 deletions

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137

drivers/cxl/acpi.c

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9

drivers/cxl/core/port.c

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11

drivers/cxl/cxl.h

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