lp:~mreed8855/ubuntu/+source/linux/+git/lunar

Author: Jim Mattson
Author Date: 2022-09-01 21:18:06 UTC

x86/cpufeatures: Add macros for Intel's new fast rep string features

BugLink: https://bugs.launchpad.net/bugs/2020022

KVM_GET_SUPPORTED_CPUID should reflect these host CPUID bits. The bits
are already cached in word 12. Give the bits X86_FEATURE names, so
that they can be easily referenced. Hide these bits from
/proc/cpuinfo, since the host kernel makes no use of them at present.

Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220901211811.2883855-1-jmattson@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
(cherry picked from commit f8df91e73a6827a4569bb56cd53e55b4ea2f5b1f)
Signed-off-by: Michael Reed <Michael.Reed@canonical.com>

Author: Roxana Nicolescu
Author Date: 2023-11-02 13:46:10 UTC

UBUNTU: [Packaging] Replace fs/cifs with fs/smb/client in inclusion list

BugLink: https://bugs.launchpad.net/bugs/2042546

Commit: 'smb: move client and server files to common directory fs/smb'
introduced in 2023.09.04 moved the fs/cifs directory to fs/sb/client.
The inclusion list for linux-modules was not updated, it still contains
the old path. This means that the cifs.ko module cannot be loaded if only
linux-modules package is installed, now being part of linux-modules-extra.
This replaces the old path with the new path so that the cifs module can
be loaded.

Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Timo Aaltonen <timo.aaltonen@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>

Author: Stefan Bader
Author Date: 2023-09-01 11:57:36 UTC

UBUNTU: [Config] Mark sh-sci as built-in

BugLink: https://bugs.launchpad.net/bugs/2022361

Follow-up to the change which make this serial console built-in as
a boot console we have to drop them from the ABI.

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

Author: Srinivas Pandruvada
Author Date: 2023-06-29 19:45:09 UTC

cpufreq: intel_pstate: Fix scaling for hybrid-capable systems with disabled E-cores

BugLink: https://launchpad.net/bugs/2030924

Some system BIOS configuration may provide option to disable E-cores.
As part of this change, CPUID feature for hybrid (Leaf 7 sub leaf 0,
EDX[15] = 0) may not be set. But HWP performance limits will still be
using a scaling factor like any other hybrid enabled system.

The current check for applying scaling factor will fail when hybrid
CPUID feature is not set and the only way to make sure that scaling
should be applied by checking CPPC nominal frequency and nominal
performance.

First, or systems predating Alder Lake, the CPPC nominal frequency and
nominal performance are 0, which can be used to distinguish those
systems from hybrid systems with disabled E-cores.

Second, if the CPPC nominal frequency and nominal performance are
defined, which indicates the need to use a special scaling factor, and
the nominal performance value multiplied by 100 is not equal to the
nominal frequency one, use hybrid scaling factor.

This can be done for all HWP systems without additional CPU model check.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Subject and changelog edits, removal of unneeded parens, comment
  edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(cherry picked from commit 0fcfc9e51990246a9813475716746ff5eb98c6aa)
Signed-off-by: Michael Reed <Michael.Reed@canonical.com>

Author: Linus Torvalds
Author Date: 2023-04-15 19:01:14 UTC

x86: don't use REP_GOOD or ERMS for small memory clearing

BugLink: https://bugs.launchpad.net/bugs/2020022

The modern target to use is FSRS (Fast Short REP STOS), and the other
cases should only be used for bigger areas (ie mainly things like page
clearing).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 20f3337d350c4e1b4ac66d731fd4e98565bf6cc0)
Signed-off-by: Michael Reed <Michael.Reed@canonical.com>

Author: Srinivas Pandruvada
Author Date: 2023-06-29 19:45:09 UTC

cpufreq: intel_pstate: Fix scaling for hybrid-capable systems with disabled E-cores

BugLink: https://bugs.launchpad.net/bugs/2026687

Some system BIOS configuration may provide option to disable E-cores.
As part of this change, CPUID feature for hybrid (Leaf 7 sub leaf 0,
EDX[15] = 0) may not be set. But HWP performance limits will still be
using a scaling factor like any other hybrid enabled system.

The current check for applying scaling factor will fail when hybrid
CPUID feature is not set and the only way to make sure that scaling
should be applied by checking CPPC nominal frequency and nominal
performance.

First, or systems predating Alder Lake, the CPPC nominal frequency and
nominal performance are 0, which can be used to distinguish those
systems from hybrid systems with disabled E-cores.

Second, if the CPPC nominal frequency and nominal performance are
defined, which indicates the need to use a special scaling factor, and
the nominal performance value multiplied by 100 is not equal to the
nominal frequency one, use hybrid scaling factor.

This can be done for all HWP systems without additional CPU model check.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Subject and changelog edits, removal of unneeded parens, comment
  edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(cherry picked from commit 0fcfc9e51990246a9813475716746ff5eb98c6aa)
Signed-off-by: Michael Reed <Michael.Reed@canonical.com>

Author: Michael Reed
Author Date: 2023-05-25 21:45:22 UTC

UBUNTU: [Config] Intel Sapphire Rapids HBM support needs CONFIG_NUMA_EMU
BugLink: https://bugs.launchpad.net/bugs/2008745

Currently Ubuntu kernel has this kernel config disabled.
But in some cases, Intel's Sapphire Rapids High Bandwith
Memory (SPR-HBM) needs this option.

Memory bandwidth has been a bottleneck of increasingly memory bound
workloads. Sapphire Rapids plus HBM is specifically targeted to
cater to these workloads, traditionally served using overprovisioning
of memory devices.

Signed-off-by: Michael Reed <Michael.Reed@canonical.com>

Author: Michael Reed
Author Date: 2023-05-24 21:37:23 UTC

UBUNTU: [Config] Intel Sapphire Rapids HBM support needs CONFIG_NUMA_EMU
BugLink: https://bugs.launchpad.net/bugs/2008745

Currently Ubuntu kernel has this kernel config disabled.
But in some cases, Intel's Sapphire Rapids High Bandwith
Memory (SPR-HBM) needs this option.

Memory bandwidth has been a bottleneck of increasingly memory bound
workloads. Sapphire Rapids plus HBM is specifically targeted to
cater to these workloads, traditionally served using overprovisioning
of memory devices.

Signed-off-by: Michael Reed <Michael.Reed@canonical.com>

Author: Michael Reed
Author Date: 2023-04-13 20:02:51 UTC

UBUNTU: [Config] Intel Sapphire Rapids HBM support needs CONFIG_NUMA_EMU

BugLink: https://bugs.launchpad.net/bugs/2008745

Currently Ubuntu kernel has this kernel config disabled.
But in some cases, Intel's Sapphire Rapids High Bandwith
Memory (SPR-HBM) needs this option.

Memory bandwidth has been a bottleneck of increasingly memory bound
workloads. Sapphire Rapids plus HBM is specifically targeted to
cater to these workloads, traditionally served using overprovisioning
of memory devices.

Signed-off-by: Michael Reed <Michael.Reed@canonical.com>