From: Dave Hansen <dave.hansen@linux.intel.com>
To: torvalds@linux-foundation.org
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
Dave Hansen <dave.hansen@linux.intel.com>
Subject: [GIT PULL] x86/platform for 6.5
Date: Mon, 26 Jun 2023 12:22:09 -0700 [thread overview]
Message-ID: <20230626192209.1529129-1-dave.hansen@linux.intel.com> (raw)
Hi Linus,
Please pull some x86/platform changes for 6.5. These allow CPUs in
SGX/HPE Ultraviolet to start using Sub-NUMA clustering (SNC) mode. SNC
has been around outside the UV world for a while but evidently never
worked on UV systems.
SNC is rather notorious for breaking bad assumptions of a 1:1
relationship between physical sockets and NUMA nodes. The UV code
was rather prolific with these assumptions and took quite a bit
of refactoring to remove them.
--
The following changes since commit 7877cb91f1081754a1487c144d85dc0d2e2e7fc4:
Linux 6.4-rc4 (2023-05-28 07:49:00 -0400)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_platform_for_6.5
for you to fetch changes up to 73b3108dfd9d53ea565c0777a27007c1c621467d:
x86/platform/uv: Update UV[23] platform code for SNC (2023-05-31 09:35:00 -0700)
----------------------------------------------------------------
Add UV platform support for sub-NUMA clustering
----------------------------------------------------------------
Steve Wahl (8):
x86/platform/uv: Add platform resolving #defines for misc GAM_MMIOH_REDIRECT*
x86/platform/uv: Introduce helper function uv_pnode_to_socket.
x86/platform/uv: Fix printed information in calc_mmioh_map
x86/platform/uv: When searching for minimums, start at INT_MAX not 99999
x86/platform/uv: Helper functions for allocating and freeing conversion tables
x86/platform/uv: UV support for sub-NUMA clustering
x86/platform/uv: Remove remaining BUG_ON() and BUG() calls
x86/platform/uv: Update UV[23] platform code for SNC
arch/x86/include/asm/uv/uv_hub.h | 32 ++--
arch/x86/include/asm/uv/uv_mmrs.h | 18 ++-
arch/x86/kernel/apic/x2apic_uv_x.c | 318 +++++++++++++++++++++++--------------
3 files changed, 232 insertions(+), 136 deletions(-)
next reply other threads:[~2023-06-26 19:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-26 19:22 Dave Hansen [this message]
2023-06-27 0:01 ` [GIT PULL] x86/platform for 6.5 pr-tracker-bot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230626192209.1529129-1-dave.hansen@linux.intel.com \
--to=dave.hansen@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox