From: alison.schofield@intel.com
To: Davidlohr Bueso <dave@stgolabs.net>,
Jonathan Cameron <jonathan.cameron@huawei.com>,
Dave Jiang <dave.jiang@intel.com>,
Alison Schofield <alison.schofield@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Ira Weiny <ira.weiny@intel.com>,
Dan Williams <dan.j.williams@intel.com>
Cc: linux-cxl@vger.kernel.org
Subject: [PATCH 0/3] XOR Math Fixups: translation & position
Date: Fri, 26 Apr 2024 12:51:04 -0700 [thread overview]
Message-ID: <cover.1714159486.git.alison.schofield@intel.com> (raw)
From: Alison Schofield <alison.schofield@intel.com>
Rather than repeat the individual patch commit message content,
let me describe the flow of this set:
Patch 1: cxl/acpi: Restore XOR'd position bits during address translation
The problem fixed in this patch, bad HPA translations with XOR math,
came to my attention recently. Patch 1 can stand alone, but since that
discovery also shed light on how to repair an issue with calculating
positions in interleave sets (Patch 2,3) they are presented together.
Patch 2 & Patch 3 are paired. Patch 2 presents the new method for
verifying a target position in the list and Patch 3 removes the
old method. These 2 could be squashed.
FYI - the reason I don't present the code removal first is because
I think it is easier to read the diff if I leave in the old root
decoder call back setup for calc_hb, insert the new call back along
the same path, and then rip out the defunct calc_hb. That's the
way I created the patchset and it may be an easier way for reviewers
to follow along with the root decoder callback setup.
Alison Schofield (3):
cxl/acpi: Restore XOR'd position bits during address translation
cxl/region: Verify target positions using the ordered target list
cxl: Remove defunct code calculating host bridge target positions
drivers/cxl/acpi.c | 76 ++++++++++++++++-----------------------
drivers/cxl/core/port.c | 21 ++---------
drivers/cxl/core/region.c | 9 ++++-
drivers/cxl/core/trace.c | 5 +++
drivers/cxl/cxl.h | 10 +++---
5 files changed, 51 insertions(+), 70 deletions(-)
base-commit: 4cece764965020c22cff7665b18a012006359095
--
2.37.3
next reply other threads:[~2024-04-26 19:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 19:51 alison.schofield [this message]
2024-04-26 19:51 ` [PATCH 1/3] cxl/acpi: Restore XOR'd position bits during address translation alison.schofield
2024-04-27 1:07 ` Dan Williams
2024-05-01 3:41 ` Alison Schofield
2024-05-01 5:00 ` Alison Schofield
2024-05-02 4:34 ` Alison Schofield
2024-04-26 19:51 ` [PATCH 2/3] cxl/region: Verify target positions using the ordered target list alison.schofield
2024-04-30 22:59 ` Dan Williams
2024-05-08 17:30 ` Alison Schofield
2024-04-26 19:51 ` [PATCH 3/3] cxl: Remove defunct code calculating host bridge target positions alison.schofield
2024-04-30 23:04 ` Dan Williams
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