mbox series

[v2,0/2] CXL XOR Interleave Arithmetic

Message ID cover.1660250360.git.alison.schofield@intel.com
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Series CXL XOR Interleave Arithmetic | expand

Message

Alison Schofield Aug. 11, 2022, 8:49 p.m. UTC 
From: Alison Schofield <alison.schofield@intel.com>

Changes in v2:
- Use ilog2() of the decoded interleave ways to determine number
of xormaps, instead of using encoded ways directly. This fixes
3, 6, and 12 way interleaves. (Dan)


Add support for the new 'XOR' Interleave Arithmetic as defined
in the CXL 3.0 Specification [1].

A linux-ized ACPI patch is included here for reference. The actual
pull request is pending at https://github.com/acpica/acpica/pull/787

[1]: https://www.computeexpresslink.org/download-the-specification


Alison Schofield (2):
  For ACPICA: Add the CXIMS structure definition to the CEDT table
  cxl/acpi: Support CXL XOR Interleave Math (CXIMS)

 include/acpi/actbl1.h | 14 ++++++-
 drivers/cxl/cxl.h     |  2 +
 drivers/cxl/acpi.c    | 94 ++++++++++++++++++++++++++++++++++++++++---
 3 files changed, 104 insertions(+), 6 deletions(-)


base-commit: 1cd8a2537eb07751d405ab7e2223f20338a90506

Comments

Alison Schofield Aug. 12, 2022, 4:30 a.m. UTC | #1 
On Thu, Aug 11, 2022 at 01:49:10PM -0700, Schofield, Alison wrote:
> From: Alison Schofield <alison.schofield@intel.com>
> 
> Changes in v2:
> - Use ilog2() of the decoded interleave ways to determine number
> of xormaps, instead of using encoded ways directly. This fixes
> 3, 6, and 12 way interleaves. (Dan)
> 

Dan - Thanks for the message about this breaking 3-6-12.
New version in the works.

> 
> Add support for the new 'XOR' Interleave Arithmetic as defined
> in the CXL 3.0 Specification [1].
> 
> A linux-ized ACPI patch is included here for reference. The actual
> pull request is pending at https://github.com/acpica/acpica/pull/787
> 
> [1]: https://www.computeexpresslink.org/download-the-specification
> 
> 
> Alison Schofield (2):
>   For ACPICA: Add the CXIMS structure definition to the CEDT table
>   cxl/acpi: Support CXL XOR Interleave Math (CXIMS)
> 
>  include/acpi/actbl1.h | 14 ++++++-
>  drivers/cxl/cxl.h     |  2 +
>  drivers/cxl/acpi.c    | 94 ++++++++++++++++++++++++++++++++++++++++---
>  3 files changed, 104 insertions(+), 6 deletions(-)
> 
> 
> base-commit: 1cd8a2537eb07751d405ab7e2223f20338a90506
> -- 
> 2.31.1
>